Columbus Energy S3ASR Automatic shelf registration | SEC 11 Apr 07

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EXHIBIT 4.4

CIMAREX ENERGY CO.,

THE SUBSIDIARY GUARANTORS PARTIES
HERETO,

AND

U.S. BANK NATIONAL ASSOCIATION,

as Trustee

[ ]% Senior Notes due 2017

INDENTURE

Dated as of April [ ], 2007

CROSS-REFERENCE TABLE

TIA Section			Indenture Section
310	(a)	(1)	7.10
	(a)	(2)	7.10
	(a)	(3)	N.A.
	(a)	(4)	N.A.
	(a)	(5)	7.10
	(b)		7.8; 7.10
	(c)		N.A.
311	(a)		7.11
	(b)		7.11
	(c)		N.A.
312	(a)		2.5
	(b)		11.3
	(c)		11.3
313	(a)		7.6
	(b)	(1)	N.A.
	(b)	(2)	7.6
	(c)		7.6
	(d)		7.6
314	(a)		3.2; 3.22
	(b)		N.A.
	(c)	(1)	11.4
	(c)	(2)	11.4
	(c)	(3)	N.A.
	(d)		N.A.
	(e)		11.5
	(f)		N.A.
315	(a)		7.1
	(b)		7.5
	(c)		7.1
	(d)		7.1
	(e)		6.11
316	(a)	(last sentence)	11.6
	(a)	(1)(A)	6.5
	(a)	(1)(B)	6.4
	(a)	(2)	N.A.
	(b)		6.7
	(c)		9.4
317	(a)	(1)	6.8
	(a)	(2)	6.9
	(b)		2.4
318	(a)		11.1
	(b)		N.A.
	(c)		N.A.
N.A. means Not Applicable.

Note:: This Cross-Reference Table shall not, for any purpose, be deemed to be part of this Indenture.

TABLE OF CONTENTS

			Page
ARTICLE I Definitions and Incorporation by Reference			1
	SECTION 1.1.	Definitions	1
	SECTION 1.2.	Incorporation by Reference of Trust Indenture Act	29
	SECTION 1.3.	Rules of Construction	29
ARTICLE II The Notes			30
	SECTION 2.1.	Form, Dating and Terms	30
	SECTION 2.2.	Execution and Authentication	33
	SECTION 2.3.	Registrar and Paying Agent	33
	SECTION 2.4.	Paying Agent To Hold Money in Trust	34
	SECTION 2.5.	Holder Lists	34
	SECTION 2.6.	Transfer and Exchange	34
	SECTION 2.7.	Mutilated, Destroyed, Lost or Stolen Notes	35
	SECTION 2.8.	Outstanding Notes	36
	SECTION 2.9.	Temporary Notes	36
	SECTION 2.10.	Cancellation	37
	SECTION 2.11.	Payment of Interest; Defaulted Interest	37
	SECTION 2.12.	Computation of Interest	38
	SECTION 2.13.	CUSIP Numbers	38
ARTICLE III Covenants			38
	SECTION 3.1.	Payment of Notes	38
	SECTION 3.2.	SEC Reports	39
	SECTION 3.3.	Limitation on Indebtedness	39
	SECTION 3.4.	Limitation on Restricted Payments	43
	SECTION 3.5.	Limitation on Liens	47
	SECTION 3.6.	Limitation on Sale/Leaseback Transactions	47
	SECTION 3.7.	Limitation on Restrictions on Distributions from Restricted Subsidiaries	48
	SECTION 3.8.	Limitation on Sales of Assets and Subsidiary Stock	49
	SECTION 3.9.	Limitation on Affiliate Transactions	52
	SECTION 3.10.	Change of Control	53
	SECTION 3.11.	Future Subsidiary Guarantors	54
	SECTION 3.12.	Limitation on Lines of Business	55
	SECTION 3.13.	Payments for Consent	55
	SECTION 3.14.	Limitation on the Sale of Capital Stock of Restricted Subsidiaries	55
	SECTION 3.15.	Effectiveness of Covenants	55
	SECTION 3.16.	Maintenance of Office or Agency	56
	SECTION 3.17.	Money for Note Payments to Be Held in Trust	57
	SECTION 3.18.	Corporate Existence	58
	SECTION 3.19.	Payment of Taxes and Other Claims	58
	SECTION 3.20.	Maintenance of Properties	58
	SECTION 3.21.	Compliance with Laws	58
	SECTION 3.22.	Compliance Certificate	58
ARTICLE IV Successor Company and Successor Subsidiary Guarantor			59
	SECTION 4.1.	Merger and Consolidation	59

ARTICLE V Redemption of Notes			60
	SECTION 5.1.	Optional Redemption	60
	SECTION 5.2.	Applicability of Article	60
	SECTION 5.3.	Election to Redeem; Notice to Trustee	60
	SECTION 5.4.	Selection by Trustee of Notes to Be Redeemed	60
	SECTION 5.5.	Notice of Redemption	61
	SECTION 5.6.	Deposit of Redemption Price	62
	SECTION 5.7.	Notes Payable on Redemption Date	62
	SECTION 5.8.	Notes Redeemed in Part	62
ARTICLE VI Defaults and Remedies			62
	SECTION 6.1.	Events of Default	62
	SECTION 6.2.	Acceleration	64
	SECTION 6.3.	Other Remedies	65
	SECTION 6.4.	Waiver of Past Defaults	65
	SECTION 6.5.	Control by Majority	65
	SECTION 6.6.	Limitation on Suits	66
	SECTION 6.7.	Rights of Holders to Receive Payment	66
	SECTION 6.8.	Collection Suit by Trustee	66
	SECTION 6.9.	Trustee May File Proofs of Claim	66
	SECTION 6.10.	Priorities	67
	SECTION 6.11.	Undertaking for Costs	67
ARTICLE VII Trustee			67
	SECTION 7.1.	Duties of Trustee	67
	SECTION 7.2.	Rights of Trustee	68
	SECTION 7.3.	Individual Rights of Trustee	69
	SECTION 7.4.	Trustee's Disclaimer	69
	SECTION 7.5.	Notice of Defaults	69
	SECTION 7.6.	Reports by Trustee to Holders	70
	SECTION 7.7.	Compensation and Indemnity	70
	SECTION 7.8.	Replacement of Trustee	71
	SECTION 7.9.	Successor Trustee by Merger	71
	SECTION 7.10.	Eligibility; Disqualification	71
	SECTION 7.11.	Preferential Collection of Claims Against Company	72
ARTICLE VIII Discharge of Indenture; Defeasance			72
	SECTION 8.1.	Satisfaction and Discharge of Indenture	72
	SECTION 8.2.	Discharge of Liability on Notes; Defeasance	72
	SECTION 8.3.	Application of Trust Money	74
	SECTION 8.4.	Repayment to Company	74
	SECTION 8.5.	Indemnity for U.S. Government Obligations	75
	SECTION 8.6.	Reinstatement	75

iii

ARTICLE IX Amendments			75
	SECTION 9.1.	Without Consent of Holders	75
	SECTION 9.2.	With Consent of Holders	76
	SECTION 9.3.	Compliance with Trust Indenture Act	77
	SECTION 9.4.	Revocation and Effect of Consents and Waivers	77
	SECTION 9.5.	Notation on or Exchange of Notes	77
	SECTION 9.6.	Trustee to Sign Amendments	77
ARTICLE X Subsidiary Guarantees			77
	SECTION 10.1.	Guarantees	77
	SECTION 10.2.	Limitation on Liability; Termination, Release and Discharge	79
	SECTION 10.3.	Right of Contribution	80
	SECTION 10.4.	No Subrogation	80
	SECTION 10.5.	Execution and Delivery of Subsidiary Guarantee	80
ARTICLE XI Miscellaneous			81
	SECTION 11.1.	Trust Indenture Act Controls	81
	SECTION 11.2.	Notices	81
	SECTION 11.3.	Communication by Holders with other Holders	81
	SECTION 11.4.	Certificate and Opinion as to Conditions Precedent	81
	SECTION 11.5.	Statements Required in Certificate or Opinion	82
	SECTION 11.6.	When Notes Disregarded	82
	SECTION 11.7.	Rules by Trustee, Paying Agent and Registrar	82
	SECTION 11.8.	Legal Holidays	82
	SECTION 11.9.	Governing Law	82
	SECTION 11.10.	No Recourse Against Others	82
	SECTION 11.11.	Successors	83
	SECTION 11.12.	Multiple Originals	83
	SECTION 11.13.	Variable Provisions	83
	SECTION 11.14.	Table of Contents; Headings	83

EXHIBITS

EXHIBIT A	Form of Global Note	A-1
EXHIBIT B	Form of Notation of Guarantee	B-1
EXHIBIT C	Form of Indenture Supplement to Add Subsidiary Guarantors	C-1

INDENTURE dated as of April [ ], 2007 among Cimarex Energy Co., a Delaware corporation (the "Company"), the Subsidiary Guarantors (as defined herein) and U.S. Bank National Association, a national banking association, as trustee (the "Trustee").

The Company has duly authorized the execution and delivery of this Indenture to provide for the issuance of (i) $300,000,000 in aggregate principal amount of the Company's [ ]% Senior Notes due 2017, issued on the Issue Date and registered under the Securities Act (the "Initial Notes"), and the guarantee thereof by the Subsidiary Guarantors and, (ii) if and when issued, an unlimited principal amount of additional [ ]% Senior Notes due 2017 that may be offered from time to time subsequent to the Issue Date in a registered offering of the Company (the "Additional Notes" and together with the Initial Notes, the "Notes") and the guarantee thereof by certain of the Company's Subsidiaries.

Each party agrees as follows for the benefit of the other parties and for the equal and ratable benefit of the Holders:

ARTICLE I

Definitions and Incorporation by Reference

SECTION 1.1. Definitions.

"Acquired Indebtedness" means Indebtedness (1) of a Person or any of its Subsidiaries existing at the time such Person becomes a Restricted Subsidiary or (2) assumed in connection with the acquisition of assets from such Person, in each case whether or not Incurred by such Person in connection with, or in anticipation or contemplation of, such Person becoming a Restricted Subsidiary or such acquisition. Acquired Indebtedness shall be deemed to have been Incurred, with respect to clause (1) of the preceding sentence, on the date such Person becomes a Restricted Subsidiary and, with respect to clause (2) of the preceding sentence, on the date of consummation of such acquisition of assets.

"Additional Assets" means:

(1) any property, plant, equipment or other asset (excluding current assets) to be used by the Company or a Restricted Subsidiary in the Oil and Gas Business;

(2) capital expenditures by the Company or a Restricted Subsidiary in the Oil and Gas Business;

(3) the Capital Stock of a Person that becomes a Restricted Subsidiary as a result of the acquisition of such Capital Stock by the Company or a Restricted Subsidiary; or

(4) Capital Stock constituting a minority interest in any Person that at such time is a Restricted Subsidiary;

provided, however, that, in the case of clauses (3) and (4), such Restricted Subsidiary is primarily engaged in the Oil and Gas Business.

"Adjusted Consolidated Net Tangible Assets" means (without duplication), as of the date of determination, the remainder of:

(a) the sum of:

(i) the Company's good faith estimate of discounted future net revenues from proved oil and gas reserves of the Company and its Restricted Subsidiaries calculated in accordance with SEC guidelines before any provincial, territorial, state, Federal or foreign income taxes, as estimated by the Company in a reserve report prepared as of the end of the Company's most recently completed fiscal year for which audited financial statements are available, as

increased by, as of the date of determination, the estimated discounted future net revenues from:

(A) estimated proved oil and gas reserves acquired since such year end, which reserves were not reflected in such year end reserve report, and

(B) estimated oil and gas reserves attributable to upward revisions of estimates of proved oil and gas reserves since such year end due to exploration, development, exploitation or other related activities, in each case calculated in accordance with SEC guidelines (utilizing the prices for the fiscal quarter ending prior to the date of determination,

and decreased by, as of the date of determination, the estimated discounted future net revenues from:

(D) estimated oil and gas reserves attributable to downward revisions of estimates of proved oil and gas reserves since such year end due to changes in geological conditions or other factors which would, in accordance with standard industry practice, cause such revisions, in each case calculated on a pre-tax basis and substantially in accordance with SEC guidelines (utilizing the prices for the fiscal quarter ending prior to the date of determination),

in each case as estimated by the Company's petroleum engineers or any independent petroleum engineers engaged by the Company for that purpose;

(ii) the capitalized costs that are attributable to Oil and Gas Properties of the Company and its Restricted Subsidiaries to which no proved oil and gas reserves are attributable, based on the Company's books and records as of a date no earlier than the date of the Company's latest available annual or quarterly consolidated financial statements;

(iii) the Net Working Capital on a date no earlier than the date of the Company's latest available annual or quarterly consolidated financial statements; and

(iv) the greater of:

(A) the net book value of other tangible assets of the Company and its Restricted Subsidiaries, as of a date no earlier than the date of the Company's latest available annual or quarterly consolidated financial statements, and

(B) the appraised value, as estimated by independent appraisers, of other tangible assets of the Company and its Restricted Subsidiaries, as of a date no earlier than the date of the Company's latest available audited consolidated financial statements (provided that, the Company may rely on subclause (A) of this clause (iv) if no appraisal is available or has been obtained); minus

(b) the sum of:

(i) any amount included in (a)(i) through (a)(iv) above that is attributable to Minority Interests;

(ii) any net gas balancing liabilities of the Company and its Restricted Subsidiaries reflected in the Company's latest audited consolidated financial statements;

(iii) to the extent included in (a)(i) above, the Company's good faith estimate of discounted future net revenues, calculated in accordance with SEC guidelines (utilizing the

prices utilized in the Company's year end reserve report), attributable to reserves which are required to be delivered to third parties to fully satisfy the obligations of the Company and its Restricted Subsidiaries with respect to Volumetric Production Payments (determined, if applicable, using the schedules specified with respect thereto); and

(iv) to the extent included in (a)(i) above, the Company's good faith estimate of discounted future net revenues, calculated in accordance with SEC guidelines, attributable to reserves subject to Dollar-Denominated Production Payments which, based on the estimates of production and price assumptions included in determining the discounted future net revenues specified in (a)(i) above, would be necessary to fully satisfy the payment obligations of the Company and its Restricted Subsidiaries with respect to Dollar-Denominated Production Payments (determined, if applicable, using the schedules specified with respect thereto).

If the Company changes its method of accounting from the full cost method of accounting to the successful efforts or a similar method, "Adjusted Consolidated Net Tangible Assets" will continue to be calculated as if the Company were still using the full cost method of accounting.

"Affiliate" of any specified Person means any other Person, directly or indirectly, controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, "control" when used with respect to any Person means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms "controlling" and "controlled" have meanings correlative to the foregoing.

"Asset Disposition" means any direct or indirect sale, lease (other than an operating lease entered into in the ordinary course of business), transfer, issuance or other disposition, or a series of related sales, leases, transfers, issuances or dispositions that are part of a common plan, of shares of Capital Stock of a Subsidiary (other than directors' qualifying shares), property or other assets (each referred to for the purposes of this definition as a "disposition") by the Company or any of its Restricted Subsidiaries, including, without limitation, any disposition by means of a merger, consolidation or similar transaction.

Notwithstanding the preceding, the following items shall not be deemed to be Asset Dispositions:

(1) a disposition of property or other assets by a Restricted Subsidiary to the Company or by the Company or a Restricted Subsidiary to a Restricted Subsidiary;provided that in the case of a sale by a Restricted Subsidiary to another Restricted Subsidiary, the Company directly or indirectly owns an equal or greater percentage of the Common Stock of the transferee than of the transferor;

(2) the disposition of cash or Cash Equivalents in the ordinary course of business;

(3) a disposition of Hydrocarbons or mineral products inventory in the ordinary course of the Oil and Gas Business;

(4) a disposition of obsolete or worn out equipment or equipment that is no longer useful in the conduct of the business of the Company and its Restricted Subsidiaries and that is disposed of in each case in the ordinary course of business;

(5) transactions permitted underArticle IV;

(6) an issuance of Capital Stock by a Restricted Subsidiary to the Company or to a Wholly Owned Subsidiary or on a pro rata basis to the holders of the Capital Stock of such Restricted Subsidiary immediately prior to such issuance;

(7) for purposes ofSection 3.8 only, the making of a Permitted Investment (other than a Permitted Investment to the extent such transaction is made in exchange for cash or Cash

Equivalents to be received by the Company or its Restricted Subsidiaries) or a disposition subject toSection 3.4;

(8) an Asset Swap;

(9) dispositions of properties or assets with an aggregate fair market value not to exceed $5.0 million in any fiscal year of the Company;

(10) the creation of a Permitted Lien and dispositions in connection with Permitted Liens;

(11) dispositions of receivables in connection with the compromise, settlement or collection thereof in the ordinary course of business or in bankruptcy or similar proceedings and exclusive of factoring or similar arrangements;

(12) any surrender or waiver of contract rights or settlement, release or surrender of contract, tort or other claims in the ordinary course of business;

(13) the issuance by a Restricted Subsidiary of Preferred Stock that is permitted bySection 3.3;

(14) the licensing or sublicensing of intellectual property or other general intangibles and licenses, sublicenses, leases or subleases of other property in the ordinary course of business which do not materially interfere with the business of the Company and its Restricted Subsidiaries;

(15) foreclosure on assets;

(16) any Production Payments and Reserve Sales,provided that any such Production Payments and Reserve Sales, other than incentive compensation programs on terms that are reasonably customary in the Oil and Gas Business for geologists, geophysicists and other providers of technical services to the Company or a Restricted Subsidiary, shall have been created, Incurred, issued, assumed or Guaranteed in connection with the acquisition or financing of, and within 60 days after the acquisition of, the property that is subject thereto;

(17) the disposition (whether or not in the ordinary course of the Oil and Gas Business) of oil and/or gas properties or direct or indirect interests in real property;provided, that at the time of such sale or transfer such properties do not have associated with them any proved reserves capable of being produced in material economic quantities;

(18) the sale or transfer (whether or not in the ordinary course of the Oil and Gas Business) of oil and/or gas properties or direct or indirect interests in real property; provided, that at the time of such sale or transfer such properties do not have associated with them any proved reserves capable of being produced in material economic quantities;

(19) the abandonment, farm-out, exchange, lease or sublease of developed or undeveloped oil and/or gas properties or interests therein in the ordinary course of business or in exchange for oil and/or gas properties or interests therein owned or held by another Person; and

(20) the disposition of Capital Stock in an Unrestricted Subsidiary.

"Asset Swap" means any trade or exchange by the Company or any Restricted Subsidiary of oil and gas properties or other properties or assets for oil and gas properties or other properties or assets owned or held by another Person;provided that the fair market value of the properties or assets traded or exchanged by the Company or such Restricted Subsidiary (together with any cash) is reasonably equivalent to the fair market value of the properties or assets (together with any cash) to be received by the Company or such Restricted Subsidiary, and provided further that any net cash received must be applied in accordance withSection 3.8 of this Indenture.

"Attributable Indebtedness" in respect of a Sale/Leaseback Transaction means, as at the time of determination, the present value (discounted at the interest rate implicit in the transaction) of the total obligations of the lessee for rental payments during the remaining term of the lease included in such Sale/Leaseback Transaction (including any period for which such lease has been extended), determined in accordance with GAAP;provided, however, that if such Sale/Leaseback Transaction results in a Capitalized Lease Obligation, the amount of Indebtedness represented thereby will be determined in accordance with the definition of "Capitalized Lease Obligations."

"Average Life" means, as of the date of determination, with respect to any Indebtedness or Preferred Stock, the quotient obtained by dividing (1) the sum of the products of the numbers of years from the date of determination to the dates of each successive scheduled principal payment of such Indebtedness or redemption or similar payment with respect to such Preferred Stock multiplied by the amount of such payment by (2) the sum of all such payments.

Bankruptcy Law" means Title 11 of the United States Code or any similar federal or state law for the relief of debtors.

"Board of Directors" means, (i) as to any Person that is a corporation, the board of directors of such Person or any duly authorized committee thereof, (ii) as to any Person that is a partnership (general or limited), the Board of Directors of a general partner of such partnership or any duly authorized committee thereof, or (iii) with respect to any other Person, the Person or group of Persons serving a similar function or any duly authorized committee thereof;

"Board Resolution" means a copy of a resolution certified by the Secretary or an Assistant Secretary of a company to have been duly adopted by the Board of Directors of such company and to be in full force and effect on the date of such certification, and delivered to the Trustee.

"Business Day" means each day that is not a Saturday, Sunday or other day on which banking institutions in New York, New York are authorized or required by law to close.

"Capital Stock" of any Person means any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such Person, including, without limitation, any Preferred Stock and limited liability company or partnership interests (whether general or limited) of such Person, but excluding any debt securities (including, without limitation, the Company's Floating Rate Convertible Senior Notes due 2023) convertible into such equity.

"Capitalized Lease Obligations" means an obligation that is required to be classified and accounted for as a capitalized lease for financial reporting purposes in accordance with GAAP, and the amount of Indebtedness represented by such obligation will be the capitalized amount of such obligation at the time any determination thereof is to be made as determined in accordance with GAAP, and the Stated Maturity thereof will be the date of the last payment of rent or any other amount due under such lease prior to the first date such lease may be terminated without penalty.

"Cash Equivalents" means:

(1) securities issued or directly and fully guaranteed or insured by the United States Government or any agency or instrumentality of the United States (provided that the full faith and credit of the United States is pledged in support thereof), having maturities of not more than one year from the date of acquisition;

(2) marketable general obligations issued by any state of the United States of America or any political subdivision of any such state or any public instrumentality thereof maturing within one year from the date of acquisition thereof and, at the time of acquisition, having a credit rating of at least "A" or the equivalent thereof by either Standard & Poor's or Moody's (or, if both such

rating agencies cease publishing ratings of such investments, an equivalent rating from a nationally recognized rating agency);

(3) certificates of deposit, time deposits, eurodollar time deposits, overnight bank deposits or bankers' acceptances having maturities of not more than one year from the date of acquisition thereof issued by any commercial bank the long term debt of which is rated at the time of acquisition thereof at least "A" or the equivalent thereof by Standard & Poor's or Moody's (or, if both such rating agencies cease publishing ratings of such investments, an equivalent rating from a nationally recognized rating agency), and having combined capital and surplus in excess of $500 million;

(4) repurchase obligations with a term of not more than seven days for underlying securities of the types described in clauses (1), (2) and (3) entered into with any bank meeting the qualifications specified in clause (3) above;

(5) commercial paper rated at the time of acquisition thereof at least "A-2" or the equivalent thereof by Standard & Poor's or "P-2" or the equivalent thereof by Moody's (or carrying an equivalent rating by a nationally recognized rating agency, if both of the two named rating agencies cease publishing ratings of such investments), and in any case maturing within one year after the date of acquisition thereof;

(6) interests in any investment company or money market fund which invests 95% or more of its assets in instruments of the type specified in clauses (1) through (5) above; and

(7) in the case of any Foreign Subsidiary that is a Restricted Subsidiary, such local currencies held by it from time to time in the ordinary course of business.

"Change of Control" means:

(1) any "person" or "group" of related persons (as such terms are used in Sections 13(d) and 14(d) of the Exchange Act) becomes the beneficial owner (as defined in Rules 13d-3 and 13d-5 under the Exchange Act, except that such person or group shall be deemed to have "beneficial ownership" of all shares that any such person or group has the right to acquire, whether such right is exercisable immediately or only after the passage of time), directly or indirectly, of more than 35% of the total voting power of the Voting Stock of the Company (or its successor by merger, consolidation or purchase of all or substantially all of its assets) (for the purposes of this clause, such person or group shall be deemed to beneficially own any Voting Stock of the Company held by a parent entity, if such person or group "beneficially owns" (as defined above), directly or indirectly, more than 35% of the voting power of the Voting Stock of such parent entity);provided, however, that a person or group shall not be deemed the beneficial owner of (a) any securities tendered pursuant to a tender or exchange offer made by or on behalf of such person or group until such tendered securities are accepted for purchase or exchange thereunder or (b) any securities the beneficial ownership of which (i) arises solely as a result of a revocable proxy delivered in response to a proxy or consent solicitation and (ii) is not then reportable on Schedule 13D (or any successor schedule) under the Exchange Act, if applicable; or

(2) during any period of two consecutive years, individuals who at the beginning of such period constituted the Company's Board of Directors (together with any new directors whose election or appointment by such Board or whose nomination for election by the shareholders of the Company was approved by a vote of a majority of the directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the Company's Board of Directors then in office; or

(3) the sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the assets of the Company and its Restricted Subsidiaries taken as a whole to any "person" (as such term is used in Sections 13(d) and 14(d) of the Exchange Act); or

(4) the adoption by the stockholders of the Company of a plan or proposal for the liquidation or dissolution of the Company.

"Code" means the Internal Revenue Code of 1986, as amended.

"Commodity Agreement" means any commodity futures contract, commodity swap, commodity option, commodity forward sale or other similar agreement or arrangement entered into by the Company or any Restricted Subsidiary in respect of Hydrocarbons or other commodities used, produced, processed or sold by such Person that are customary in the Oil and Gas Business designed to protect the Company or any of its Restricted Subsidiaries against fluctuations in the price of Hydrocarbons or other commodities.

"Common Stock" means with respect to any Person, any and all shares, interests or other participations in, and other equivalents (however designated and whether voting or nonvoting) of such Person's common stock whether or not outstanding on the Issue Date, and includes, without limitation, all series and classes of such common stock.

"Consolidated Coverage Ratio" means as of any date of determination, with respect to any Person, the ratio of (x) the aggregate amount of Consolidated EBITDA of such Person for the period of the most recent four consecutive fiscal quarters ending prior to the date of such determination for which financial statements are in existence to (y) Consolidated Interest Expense for such four fiscal quarters,provided,however, that:

(1) if the Company or any Restricted Subsidiary:

(a) has Incurred any Indebtedness since the beginning of such period that remains outstanding on such date of determination or if the transaction giving rise to the need to calculate the Consolidated Coverage Ratio is an Incurrence of Indebtedness, Consolidated EBITDA and Consolidated Interest Expense for such period will be calculated after giving effect on a pro forma basis to such Indebtedness as if such Indebtedness had been Incurred on the first day of such period (except that in making such computation, the amount of Indebtedness under any revolving credit facility outstanding on the date of such calculation will be deemed to be (i) the average daily balance of such Indebtedness during such four fiscal quarters or such shorter period for which such facility was outstanding or (ii) if such facility was created after the end of such four fiscal quarters, the average daily balance of such Indebtedness during the period from the date of creation of such facility to the date of such calculation) and the discharge of any other Indebtedness repaid, repurchased, defeased or otherwise discharged with the proceeds of such new Indebtedness as if such discharge had occurred on the first day of such period; or

(b) has repaid, repurchased, defeased or otherwise discharged any Indebtedness since the beginning of the period that is no longer outstanding on such date of determination or if the transaction giving rise to the need to calculate the Consolidated Coverage Ratio involves a discharge of Indebtedness (in each case, other than Indebtedness Incurred under any revolving credit facility unless such Indebtedness has been (or will be with the proceeds of such transaction) permanently repaid and the related commitment terminated), Consolidated EBITDA and Consolidated Interest Expense for such period will be calculated after giving effect on a pro forma basis to such discharge of such Indebtedness, including with the proceeds of such new Indebtedness, as if such discharge had occurred on the first day of such period;

(2) if since the beginning of such period the Company or any Restricted Subsidiary will have made any Asset Disposition or disposed of any company, division, operating unit, segment, business, group of related assets or line of business or if the transaction giving rise to the need to calculate the Consolidated Coverage Ratio is such an Asset Disposition:

(a) the Consolidated EBITDA for such period will be reduced by an amount equal to the Consolidated EBITDA (if positive) directly attributable to the assets which are the subject of such disposition for such period or increased by an amount equal to the Consolidated EBITDA (if negative) directly attributable thereto for such period; and

(b) Consolidated Interest Expense for such period will be reduced by an amount equal to the Consolidated Interest Expense directly attributable to any Indebtedness of the Company or any Restricted Subsidiary repaid, repurchased, defeased or otherwise discharged with respect to the Company and its continuing Restricted Subsidiaries in connection with such disposition for such period (or, if the Capital Stock of any Restricted Subsidiary is sold, the Consolidated Interest Expense for such period directly attributable to the Indebtedness of such Restricted Subsidiary to the extent the Company and its continuing Restricted Subsidiaries are no longer liable for such Indebtedness after such sale);

(3) if since the beginning of such period the Company or any Restricted Subsidiary (by merger or otherwise) will have made an Investment in any Restricted Subsidiary (or any Person which becomes a Restricted Subsidiary or is merged with or into the Company) or an acquisition of assets, including, without limitation, any acquisition of assets occurring in connection with a transaction giving rise to the need to calculate the Consolidated Coverage Ratio, which constitutes all or substantially all of a company, division, operating unit, segment, business, group of related assets or line of business, Consolidated EBITDA and Consolidated Interest Expense for such period will be calculated after giving pro forma effect thereto (including, without limitation, the Incurrence of any Indebtedness) as if such Investment or acquisition occurred on the first day of such period; and

(4) if since the beginning of such period any Person (that subsequently became a Restricted Subsidiary or was merged with or into the Company or any Restricted Subsidiary since the beginning of such period) will have Incurred any Indebtedness or discharged any Indebtedness, made any disposition or any Investment or acquisition of assets that would have required an adjustment pursuant to clause (1), (2) or (3) above if made by the Company or a Restricted Subsidiary during such period, Consolidated EBITDA and Consolidated Interest Expense for such period will be calculated after giving pro forma effect thereto as if such transaction occurred on the first day of such period.

For purposes of this definition, whenever pro forma effect is to be given to any calculation under this definition, the pro forma calculations will be determined in good faith by a responsible financial or accounting officer of the Company (including, without limitation, pro forma expense and cost reductions calculated on a basis consistent with Regulation S-X under the Securities Act). If any Indebtedness bears a floating rate of interest and is being given pro forma effect, the interest expense on such Indebtedness will be calculated as if the rate in effect on the date of determination had been the applicable rate for the entire period (taking into account any Interest Rate Agreement applicable to such Indebtedness if such Interest Rate Agreement has a remaining term in excess of 12 months). If any Indebtedness that is being given pro forma effect bears an interest rate at the option of the Company, the interest rate shall be calculated by applying such optional rate chosen by the Company.

"Consolidated EBITDA" for any period means, without duplication, the Consolidated Net Income for such period, plus the following to the extent deducted in calculating such Consolidated Net Income or, in the case of clause (7), added in calculating such Consolidated Net Income:

(1) Consolidated Interest Expense; plus

(2) Consolidated Income Taxes; plus

(3) consolidated depletion and depreciation expense; plus

(4) consolidated amortization expense or impairment charges recorded in connection with the application of Financial Accounting Standard No. 142,Goodwill and Other Intangibles, and Financial Accounting Standard No. 144,Accounting for the Impairment or Disposal of Long Lived Assets; plus

(5) other non-cash charges reducing Consolidated Net Income (excluding any such non-cash charge to the extent it represents an accrual of or reserve for cash charges in any future period or amortization of a prepaid cash expense that was paid in a prior period not included in the calculation); plus

(6) consolidated exploration expense; less

(7) non-cash items increasing Consolidated Net Income of such Person for such period (excluding any items which represent the reversal of any accrual of, or reserve for, anticipated cash charges made in any prior period).

Notwithstanding the preceding sentence, clauses (2) through (7) relating to amounts of a Restricted Subsidiary of a Person will be added to or deducted from, as the case may be, Consolidated Net Income to compute Consolidated EBITDA of such Person only to the extent (and in the same proportion) that the net income (loss) of such Restricted Subsidiary was included in calculating the Consolidated Net Income of such Person and, to the extent the amounts set forth in clauses (2) through (7) relating to any Non-Guarantor Restricted Subsidiary are in excess of those necessary to offset a net loss of such Non-Guarantor Restricted Subsidiary or if such Non-Guarantor Restricted Subsidiary has net income for such period included in Consolidated Net Income, only if a corresponding amount would be permitted at the date of determination to be dividended to the Company by such Non-Guarantor Restricted Subsidiary without prior approval (that has not been obtained), pursuant to the terms of its charter and all agreements, instruments, judgments, decrees, orders, statutes, rules and governmental regulations applicable to that Non-Guarantor Restricted Subsidiary or its stockholders.

"Consolidated Income Taxes" means, with respect to any Person for any period, taxes imposed upon such Person or other payments required by any governmental authority to be made by such Person which taxes or other payments are calculated by reference to the income or profits of such Person or such Person and its Restricted Subsidiaries (to the extent such income or profits were included in computing Consolidated Net Income for such period), regardless of whether such taxes or payments are required to be remitted to any governmental authority.

"Consolidated Interest Expense" means, for any period, the total interest expense of the Company and its consolidated Restricted Subsidiaries, whether paid or accrued, plus, to the extent not included in such interest expense and without duplication:

(1) interest expense attributable to Capitalized Lease Obligations and the interest portion of rent expense associated with Attributable Indebtedness in respect of a Sale/Leaseback Transaction in respect of the relevant lease giving rise thereto, determined as if such lease were a capitalized lease in accordance with GAAP and the interest component of any deferred payment obligations;

(2) amortization of debt discount and debt issuance cost;provided, however, that any amortization of bond premium will be credited to reduce Consolidated Interest Expense unless, pursuant to GAAP, such amortization of bond premium has otherwise reduced Consolidated Interest Expense;

(3) non-cash interest expense;

(4) commissions, discounts and other fees and charges owed with respect to letters of credit and bankers' acceptance financing;

(5) the interest expense on Indebtedness of another Person that is Guaranteed by the Company or one of its Restricted Subsidiaries or secured by a Lien on assets of the Company or one of its Restricted Subsidiaries;

(6) net costs pursuant to Hedging Obligations (including amortization of fees)provided, however, that if Hedging Obligations result in net benefits rather than net costs, such benefits shall be credited to reduce Consolidated Interest Expense unless, pursuant to GAAP, such net benefits are otherwise reflected in Consolidated Net Income;

(7) the consolidated interest expense of such Person and its Restricted Subsidiaries that was capitalized during such period;

(8) the product of (a) all dividends paid or payable, in cash, Cash Equivalents or Indebtedness or accrued during such period on any series of Disqualified Stock of such Person or on Preferred Stock of its Restricted Subsidiaries that are not Subsidiary Guarantors payable to a party other than the Company or a Wholly Owned Subsidiary, times (b) a fraction, the numerator of which is one and the denominator of which is one minus the then current combined federal, state, provincial and local statutory tax rate of such Person, expressed as a decimal, in each case, on a consolidated basis and in accordance with GAAP;

(9) Receivables Fees; and

(10) the cash contributions to any employee stock ownership plan or similar trust to the extent such contributions are used by such plan or trust to pay interest or fees to any Person (other than the Company and its Restricted Subsidiaries) in connection with Indebtedness Incurred by such plan or trust.

For purposes of the foregoing, total interest expense will be determined (i) after giving effect to any net payments made or received by the Company and its Subsidiaries with respect to Interest Rate Agreements and (ii) exclusive of amounts classified as other comprehensive income in the balance sheet of the Company. Notwithstanding anything to the contrary contained herein, commissions, discounts, yield and other fees and charges Incurred in connection with any securitization transaction, factoring agreement or similar transaction pursuant to which the Company or its Restricted Subsidiaries may sell, convey or otherwise transfer any accounts receivable or related assets or interests therein shall be included in Consolidated Interest Expense.

"Consolidated Net Income" means, for any period, the net income (loss) of the Company and its consolidated Restricted Subsidiaries determined in accordance with GAAP;provided, however, that there will not be included in such Consolidated Net Income:

(1) any net income (loss) of any Person if such Person is not the Company or a Restricted Subsidiary, except that:

(a) subject to the limitations contained in clauses (3), (4) and (5) below, the Company's equity in the net income of any such Person for such period will be included in such Consolidated Net Income up to the aggregate amount of cash actually distributed by such Person during such period to the Company or a Restricted Subsidiary as a dividend or other

distribution (subject, in the case of a dividend or other distribution to a Non-Guarantor Restricted Subsidiary, to the limitations contained in clause (2) below); and

(b) the Company's equity in a net loss of any such Person (other than an Unrestricted Subsidiary) for such period will be included in determining such Consolidated Net Income to the extent such loss has been funded with cash from the Company or a Restricted Subsidiary;

(2) any net income (but not loss) of any Non-Guarantor Restricted Subsidiary if such Non-Guarantor Restricted Subsidiary is subject to restrictions, directly or indirectly, on the payment of dividends or the making of distributions by such Non-Guarantor Restricted Subsidiary, directly or indirectly, to the Company, except that:

(a) subject to the limitations contained in clauses (3), (4) and (5) below, the Company's equity in the net income of any such Non-Guarantor Restricted Subsidiary for such period will be included in such Consolidated Net Income up to the aggregate amount of cash that could have been distributed by such Non-Guarantor Restricted Subsidiary during such period to the Company or another Restricted Subsidiary as a dividend or other distribution (subject, in the case of a dividend to another Non-Guarantor Restricted Subsidiary, to the limitation contained in this clause); and

(b) the Company's equity in a net loss of any such Non-Guarantor Restricted Subsidiary for such period will be included in determining such Consolidated Net Income;

(3) any gain (loss) realized upon the sale or other disposition of any property, plant or equipment of the Company or its consolidated Restricted Subsidiaries (including, without limitation, pursuant to any Sale/Leaseback Transaction) which is not sold or otherwise disposed of in the ordinary course of business and any gain (loss) realized upon the sale or other disposition of any Capital Stock of any Person;

(4) any extraordinary gain or loss;

(5) any unrealized non-cash gains or losses on charges in respect of Hedging Obligations (including those resulting from the application of SFAS 133);

(6) the cumulative effect of a change in accounting principles; and

(7) any asset (including goodwill) impairment or writedown on or related to Oil and Gas Properties under applicable GAAP or SEC guidelines.

"Corporate Trust Office" means the principal office of the Trustee at which at any time its corporate trust business shall be administered, which office at the date hereof is located at [ ], Attention: [ ], or such other address as the Trustee may designate from time to time by notice to the Holders and the Company, or the principal corporate trust office of any successor Trustee (or such other address as such successor Trustee may designate from time to time by notice to the Holders and the Company).

"Credit Facility" means, with respect to the Company or any Restricted Subsidiary, one or more credit facilities (including, without limitation, the Senior Secured Credit Agreement) or commercial paper facilities providing for revolving credit loans, term loans, receivables financing (including, without limitation, through the sale of receivables to such lenders or to special purpose entities formed to borrow from such lenders against such receivables), letters of credit or other debt obligations, in each case, as amended, restated, modified, renewed, restructured, supplemented, extended, substituted, refunded, replaced or refinanced in whole or in part from time to time (and whether or not with the original administrative agent and lenders or another administrative agent or agents or other lenders and whether provided under the original Senior Secured Credit Agreement or any other credit or other

agreement or indenture). For the avoidance of doubt, the term "Credit Facility" does not include the Company's Floating Rate Convertible Senior Notes due 2023.

"Currency Agreement" means in respect of a Person any foreign exchange contract, currency swap agreement, currency futures contract, currency option contract or other similar agreement as to which such Person is a party or a beneficiary.

"Custodian" means any receiver, trustee, assignee, liquidator, custodian or similar official under any Bankruptcy Law.

"Default" means any event which is, or after notice or passage of time or both would be, an Event of Default.

"Definitive Notes" means certificated securities.

"Depositary" means The Depository Trust Company, its nominees and their respective successors and assigns, or such other depository institution hereinafter appointed by the Company.

"Designated Officer" means, with respect to any Person, the Chief Executive Officer, President or Chief Financial Officer of such Person.

"Disqualified Stock" means, with respect to any Person, any Capital Stock of such Person which by its terms (or by the terms of any security into which it is convertible or for which it is exchangeable, in each case, at the option of the holder thereof) or upon the happening of any event:

(1) matures or is mandatorily redeemable pursuant to a sinking fund obligation or otherwise;

(2) is convertible or exchangeable for Indebtedness or Disqualified Stock (excluding Capital Stock which is convertible or exchangeable solely at the option of the Company or a Restricted Subsidiary); or

(3) is redeemable at the option of the holder of the Capital Stock in whole or in part,

in each case on or prior to the date that is 91 days after the earlier of (a) the date of the Stated Maturity of the Notes or (b) the first date after the Issue Date on which there are no Notes outstanding,provided that only the portion of Capital Stock which so matures or is mandatorily redeemable, is so convertible or exchangeable or is so redeemable at the option of the holder thereof prior to such date will be deemed to be Disqualified Stock;provided, further that any Capital Stock that would constitute Disqualified Stock solely because the holders thereof have the right to require the Company to repurchase such Capital Stock upon the occurrence of a change of control or asset disposition (each defined substantially consistent with the corresponding definitions in this Indenture) shall not constitute Disqualified Stock if the terms of such Capital Stock (and all such securities into which it is convertible or for which it is ratable or exchangeable) provide that the Company may not repurchase or redeem any such Capital Stock (and all such securities into which it is convertible or for which it is ratable or exchangeable) pursuant to such provision prior to compliance by the Company with the provisions of this Indenture pursuant toSections 3.8 and 3.10 of this Indenture and such repurchase or redemption complies withSection 3.4 of this Indenture.

"Dollar-Denominated Production Payments" means production payment obligations recorded as liabilities in accordance with GAAP, together with all undertakings and obligations in connection therewith.

"Domestic Subsidiary" means any Restricted Subsidiary that is organized under the laws of the United States of America or any state thereof or the District of Columbia, other than any Restricted Subsidiary that is a Foreign Subsidiary.

"Equity Offering" means a public offering for cash by the Company of its Common Stock, or options, warrants or rights with respect to its Common Stock, other than (x) public offerings with

respect to the Company's Common Stock, or options, warrants or rights, registered on Form S-4 or S-8, (y) an issuance to any Subsidiary or (z) any offering of Common Stock issued in connection with a transaction that constitutes a Change of Control.

"Exchange Act" means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the SEC promulgated thereunder.

"Fair Market Value" means the value that would be paid by a willing buyer to an unaffiliated willing seller in a transaction not involving distress or necessity of either party, determined in good faith by the Board of Directors or management of the Company (unless otherwise provided in this Indenture) as of the date of contractually agreeing to any transaction that triggers the requirement to determine the Fair Market Value, which determination will be conclusive for all purposes under this Indenture.

"Foreign Subsidiary" means any Restricted Subsidiary of the Company that (a) is not organized under the laws of the United States of America or any state thereof or the District of Columbia, or (b) was organized under the laws of the United States of America or any state thereof or the District of Columbia that has no material assets other than Capital Stock of or other interests in one or more foreign entities of the type described in clause (a) above and is not a guarantor of Indebtedness under the Senior Secured Credit Agreement.

"GAAP" means generally accepted accounting principles in the United States of America as in effect as of the date of this Indenture, including those set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as approved by a significant segment of the accounting profession. All ratios and computations based on GAAP contained in this Indenture will be computed in conformity with GAAP, except that in the event the Company is acquired in a transaction that is accounted for using purchase accounting, the effects of the application of purchase accounting shall be disregarded in the calculation of such ratios and other computations contained in this Indenture.

"Guarantee" means any obligation, contingent or otherwise, of any Person directly or indirectly guaranteeing any Indebtedness of any other Person of the type described in clauses (1) through (7), (9) and (10) of the definition of "Indebtedness" and any obligation, direct or indirect, contingent or otherwise, of such Person:

(1) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness of such other Person (whether arising by virtue of partnership arrangements, or by agreement to keep-well, to purchase assets, goods, securities or services, to take-or-pay, or to maintain financial statement conditions or otherwise); or

(2) entered into for purposes of assuring in any other manner the obligee of such Indebtedness of the payment thereof or to protect such obligee against loss in respect thereof (in whole or in part);provided, however, that the term "Guarantee" will not include endorsements for collection or deposit in the ordinary course of business. The term "Guarantee" used as a verb has a corresponding meaning.

"Guarantor Pari Passu Indebtedness" means Indebtedness of a Subsidiary Guarantor that ranks equally in right of payment to such Subsidiary Guarantor's Subsidiary Guarantee, except as a result of any collateral arrangements in connection with such Indebtedness.

"Guarantor Subordinated Obligation" means, with respect to a Subsidiary Guarantor, any Indebtedness of such Subsidiary Guarantor (whether outstanding on the Issue Date or thereafter Incurred) which is expressly subordinated in right of payment to the obligations of such Subsidiary Guarantor under its Subsidiary Guarantee pursuant to a written agreement.

"Hedging Obligations" of any Person means the obligations of such Person pursuant to any Interest Rate Agreement, Currency Agreement or Commodity Agreement.

"Holder" means a Person in whose name a Note is registered on the Registrar's books.

"Hydrocarbons" means oil, gas, casinghead gas, drip gasoline, natural gasoline, condensate, distillate, liquid hydrocarbons, gaseous hydrocarbons and all constituents, elements or compounds thereof and all products, by-products, and all other substances (whether or not hydrocarbon in nature) produced in connection therewith or refined, separated, settled or derived therefrom or the processing thereof.

"Incur" means issue, create, assume, Guarantee, incur or otherwise become liable for;provided, however, that any Indebtedness or Capital Stock of a Person existing at the time such person becomes a Restricted Subsidiary (whether by merger, consolidation, acquisition or otherwise) will be deemed to be Incurred by such Restricted Subsidiary at the time it becomes a Restricted Subsidiary; and the terms "Incurred" and "Incurrence" have meanings correlative to the foregoing.

"Indebtedness" means, with respect to any Person on any date of determination (without duplication):

(1) the principal of and premium (if any) in respect of indebtedness of such Person for borrowed money;

(2) the principal of and premium (if any) in respect of obligations of such Person evidenced by bonds, debentures, notes or other similar instruments;

(3) the principal component of all obligations of such Person in respect of letters of credit, bankers' acceptances or other similar instruments (including reimbursement obligations with respect thereto except to the extent such reimbursement obligation relates to a trade payable and such obligation is satisfied within 30 days of Incurrence and excluding obligations in respect of letters of credit securing obligations (other than the Indebtedness described in clauses (1), (2), (4), (5), (7), (8) or (9) of this definition) entered into in the ordinary course of business to the extent such letters of credit are not drawn upon or, if and to the extent drawn upon, to the extent such drawing is reimbursed within 10 days following payment on the letter of credit);

(4) the principal component of all obligations of such Person to pay the deferred and unpaid purchase price of property (except trade payables), which purchase price is due more than six months after the date of placing such property in service or taking delivery and title thereto;

(5) Capitalized Lease Obligations and all Attributable Indebtedness of such Person;

(6) the principal component or liquidation preference of all obligations of such Person with respect to the redemption, repayment or other repurchase of any Disqualified Stock or, with respect to any Subsidiary that is not a Subsidiary Guarantor, any Preferred Stock (but excluding, in each case, any accrued dividends);

(7) the principal component of all Indebtedness of other Persons secured by a Lien on any asset of such Person, whether or not such Indebtedness is assumed by such Person;provided, however, that the amount of such Indebtedness will be the lesser of (a) the fair market value of such asset at such date of determination and (b) the amount of such Indebtedness of such other Persons;

(8) the principal component of Indebtedness of other Persons to the extent Guaranteed by such Person;

(9) to the extent not otherwise included in this definition, net obligations of such Person under Hedging Obligations (the amount of any such obligations to be equal at any time to the

termination value of such agreement or arrangement giving rise to such obligation that would be payable by such Person at such time); and

(10) to the extent not otherwise included in this definition, the amount of obligations outstanding under the legal documents entered into as part of a securitization transaction or series of transactions that would be characterized as principal if such transaction were structured as a secured lending transaction rather than as a purchase outstanding relating to a securitization transaction or series of transactions.

The amount of Indebtedness of any Person at any date will be the outstanding balance at such date of all unconditional obligations as described above and the maximum liability, upon the occurrence of the contingency giving rise to the obligation, of any contingent obligations at such date. Notwithstanding the foregoing, money borrowed and set aside at the time of the Incurrence of any Indebtedness in order to pre-fund the payment of interest on such Indebtedness shall not be deemed to be "Indebtedness",provided that such money is held to secure the payment of such interest.

In addition, "Indebtedness" of any Person shall include Indebtedness described in the preceding paragraph that would not appear as a liability on the balance sheet of such Person if:

(1) such Indebtedness is the obligation of a partnership or joint venture that is not a Restricted Subsidiary (a "Joint Venture");

(2) such Person or a Restricted Subsidiary of such Person is a general partner of the Joint Venture (a "General Partner"); and

(3) there is recourse, by contract or operation of law, with respect to the payment of such Indebtedness to property or assets of such Person or a Restricted Subsidiary of such Person; and then such Indebtedness shall be included in an amount not to exceed:

(a) the lesser of (i) the net assets of the General Partner and (ii) the amount of such obligations to the extent that there is recourse, by contract or operation of law, to the property or assets of such Person or a Restricted Subsidiary of such Person; or

(b) if less than the amount determined pursuant to clause (a) immediately above, the actual amount of such Indebtedness that is recourse to such Person or a Restricted Subsidiary of such Person, if the Indebtedness is evidenced by a writing and is for a determinable amount.

"Indenture" means this Indenture, as amended or supplemented from time to time.

"Interest Rate Agreement" means, with respect to any Person, any interest rate protection agreement, interest rate future agreement, interest rate option agreement, interest rate swap agreement, interest rate cap agreement, interest rate collar agreement, interest rate hedge agreement or other similar agreement or arrangement as to which such Person is party or a beneficiary.

"Investment" means, with respect to any Person, all investments by such Person in other Persons (including Affiliates) in the form of any direct or indirect advance, loan (other than advances or extensions of credit to customers in the ordinary course of business) or other extensions of credit (including by way of Guarantee or similar arrangement, but excluding any debt or extension of credit represented by a bank deposit other than a time deposit) or capital contribution to (by means of any transfer of cash or other property (valued at the fair market value thereof as of the date of transfer) to others or any payment for property or services for the account or use of others), or any purchase or acquisition of Capital Stock, Indebtedness or other similar instruments issued by, such other Person and

all other items that are or would be classified as investments on a balance sheet prepared in accordance with GAAP;provided that none of the following will be deemed to be an Investment:

(1) Hedging Obligations entered into in the ordinary course of business and in compliance with this Indenture;

(2) endorsements of negotiable instruments and documents in the ordinary course of business; and

(3) an acquisition of assets, Capital Stock or other securities by the Company or a Subsidiary for consideration to the extent such consideration consists of Capital Stock of the Company (other than Disqualified Stock).

For purposes ofSection 3.4,

(1) "Investment" will include the portion (proportionate to the Company's equity interest in a Restricted Subsidiary to be designated as an Unrestricted Subsidiary) of the fair market value of the net assets of such Restricted Subsidiary at the time that such Restricted Subsidiary is designated an Unrestricted Subsidiary, unless such Restricted Subsidiary, at the time of such designation, has total assets of $1,000 or less, in which case no Investment shall be deemed to occur as a result of such designation;provided, however, that upon a redesignation of such Subsidiary as a Restricted Subsidiary, the Company will be deemed to continue to have a permanent "Investment" in an Unrestricted Subsidiary in an amount (if positive) equal to (a) the Company's "Investment" in such Subsidiary at the time of such redesignation less (b) the portion (proportionate to the Company's equity interest in such Subsidiary) of the fair market value of the net assets (as conclusively determined by the Board of Directors of the Company in good faith) of such Subsidiary at the time that such Subsidiary is so re-designated a Restricted Subsidiary;

(2) any property transferred to or from an Unrestricted Subsidiary will be valued at its fair market value at the time of such transfer, in each case as determined in good faith by the Board of Directors of the Company; and

(3) the amount of any Investment shall not be adjusted for increases or decreases in value, or write-ups, write-downs or write-offs with respect to such Investment.

"Investment Grade Rating" means a rating equal to or higher than (1) Baa3 (or the equivalent) with a stable or better outlook by Moody's and (2) BBB- (or the equivalent) with a stable or better outlook by Standard & Poor's; or if either such entity ceases to rate Notes for reasons outside of the Company's control, the equivalent investment grade rating from another nationally recognized statistical rating agency or agencies, as the case may be, selected by the Company.

"Issue Date" means April [ ], 2007.

"Lien" means any mortgage, pledge, security interest, encumbrance, lien or charge of any kind (including, without limitation, any conditional sale or other title retention agreement or lease in the nature thereof).

"Minority Interest" means the percentage interest represented by any shares of stock of any class of Capital Stock of a Restricted Subsidiary that are not owned by the Company or a Restricted Subsidiary.

"Moody's" means Moody's Investors Service, Inc. and its successors.

"Net Available Cash" from an Asset Disposition means cash payments received by the Company or any Restricted Subsidiary of the Company (including, without limitation, any cash payments received by way of deferred payment of principal pursuant to a note or installment receivable or otherwise and net proceeds from the sale or other disposition of any securities received as consideration, but only as

and when received, but excluding any other consideration received in the form of assumption by the acquiring Person of Indebtedness or other obligations relating to the properties or assets that are the subject of such Asset Disposition or received in any other non-cash form) therefrom, in each case net of:

(1) all legal, accounting, investment banking, title and recording tax expenses, commissions and other fees and expenses Incurred, and all Federal, state, provincial, foreign and local taxes required to be paid or accrued as a liability under GAAP (after taking into account any available tax credits or deductions and any tax sharing agreements), as a consequence of such Asset Disposition;

(2) all payments made on any Indebtedness which is secured by any assets subject to such Asset Disposition, in accordance with the terms of any Lien upon such assets, or which must by its terms, or in order to obtain a necessary consent to such Asset Disposition, or by applicable law be repaid out of the proceeds from such Asset Disposition;

(3) all distributions and other payments required to be made to minority interest holders in Subsidiaries or joint ventures or to holders of royalty or similar interests as a result of such Asset Disposition;

(4) the deduction of appropriate amounts to be provided by the seller as a reserve, in accordance with GAAP, against any liabilities associated with the assets disposed of in such Asset Disposition and retained by the Company or any Restricted Subsidiary after such Asset Disposition; and

(5) any portion of the purchase price from an Asset Disposition placed in escrow, whether as a reserve for adjustment of the purchase price, for satisfaction of indemnities in respect of such Asset Disposition or otherwise in connection with that Asset Disposition;provided, however, that upon the termination of that escrow, Net Available Cash will be increased by any portion of funds in the escrow that are released to the Company or any Restricted Subsidiary.

"Net Cash Proceeds," with respect to any issuance or sale of Capital Stock, means the cash proceeds of such issuance or sale net of attorneys' fees, accountants' fees, underwriters' or placement agents' fees, listing fees, discounts or commissions and brokerage, consultant and other fees and charges actually Incurred in connection with such issuance or sale and net of taxes paid or payable as a result of such issuance or sale (after taking into account any available tax credit or deductions and any tax sharing arrangements).

"Net Working Capital" means (a) all current assets of the Company and its Restricted Subsidiaries except current assets from Commodity Agreements, less (b) all current liabilities of the Company and its Restricted Subsidiaries, except current liabilities included in Indebtedness and any current liabilities from Commodity Agreements, in each case as set forth in the consolidated financial statements of the Company prepared in accordance with GAAP.

"Non-Guarantor Restricted Subsidiary" means any Restricted Subsidiary that is not a Subsidiary Guarantor.

"Non-Recourse Debt" means Indebtedness of a Person:

(1) as to which neither the Company nor any Restricted Subsidiary (a) provides any Guarantee or credit support of any kind (including any undertaking, guarantee, indemnity, agreement or instrument that would constitute Indebtedness) or (b) is directly or indirectly liable (as a guarantor or otherwise);

(2) no default with respect to which (including any rights that the holders thereof may have to take enforcement action against an Unrestricted Subsidiary) would permit (upon notice, lapse of time or both) any holder of any other Indebtedness of the Company or any Restricted Subsidiary to declare a default under such other Indebtedness or cause the payment thereof to be accelerated or payable prior to its Stated Maturity; and

(3) the explicit terms of which provide there is no recourse against any of the assets of the Company or its Restricted Subsidiaries.

"Note Register" means the register of Notes, maintained by the Registrar, pursuant toSection 2.3.

"Notes Custodian" means the custodian with respect to the Global Notes (as appointed by the Depositary), or any successor Person thereto, and shall initially be the Trustee.

"Officer" means the Chairman of the Board, the Chief Executive Officer, the President, the Chief Financial Officer, any Vice President, the Treasurer or the Secretary of the Company. Officer of any Subsidiary Guarantor has a correlative meaning.

"Officers' Certificate" means a certificate signed by two Officers or by an Officer and either an Assistant Treasurer or an Assistant Secretary of the Company.

"Oil and Gas Business" means (a) the business of acquiring, exploring, exploiting, developing, producing, operating, hedging, swapping and disposing of interests in oil, gas, liquid natural gas and other Hydrocarbon properties and assets, (b) the business of gathering, marketing, treating, processing, storage, refining, selling, hedging, swapping and transporting of any production from such interests, properties or assets (or interests, properties or assets of others) and products produced in association therewith, (c) any business or activity relating to, arising from, or necessary, appropriate, incidental, ancillary or complementary to the activities described in the foregoing clauses (a) and (b) of this definition.

"Oil and Gas Properties" means all properties, including equity or other ownership interests therein, owned by such Person which contain "proved oil and gas reserves" as defined in Rule 4-10 of Regulation S-X of the Securities Act.

"Opinion of Counsel" means a written opinion from legal counsel who is acceptable to the Trustee. The counsel may be an employee of or counsel to the Company or the Trustee.

"Pari Passu Indebtedness" means Indebtedness that ranks equally in right of payment to the Notes without regard to any collateral arrangements in connection with such Indebtedness.

"Permitted Business Investment" means any Investment made in the ordinary course of the business of the Company or any Restricted Subsidiary or that is of a nature that is or shall have become customary in, the Oil and Gas Business including, without limitation, investments or expenditures for exploiting, exploring for, acquiring, developing, producing, processing, refining, gathering, marketing or transporting Hydrocarbons through agreements, transactions, interests or arrangements which permit one to share or transfer risks or costs, comply with regulatory requirements regarding local ownership or satisfy other objectives customarily achieved through the conduct of the Oil and Gas Business jointly with third parties, including, without limitation:

(1) ownership interests in oil, gas or other Hydrocarbon or mineral properties and interests therein, liquid natural gas facilities, drilling operations, processing facilities, refineries, gathering systems, pipelines, storage facilities, related systems or facilities, ancillary real property interests, and interests therein;

(2) Investments in the form of or pursuant to oil and/or gas leases, mineral leases, overriding royalty agreements, net profits agreements, production payment agreements, royalty trust agreements, incentive compensation programs on terms that are reasonably customary in the Oil and Gas Business for geologists, geophysicists and other providers of technical services to the Company or any Restricted Subsidiary, operating agreements, farm-in agreements, farm-out agreements, division orders, participation agreements, master limited partnership agreements, limited liability company agreements, contracts for the sale, purchase, exchange, transportation, gathering, processing, marketing or storage of Hydrocarbons, communitizations, declarations,

orders and agreements, production sales contracts, gas balancing or deferred production agreements, injection, repressuring and recycling agreements, salt water or other disposal agreements, seismic or geophysical permits or agreements, development agreements, area of mutual interest agreements, unitization agreements, pooling agreements, joint bidding agreements, service contracts, joint venture agreements, partnership agreements (whether general or limited), subscription agreements, stock purchase agreements and other similar agreements (including for limited liability companies) with third parties, working interest, royalty interests and mineral leases, and other agreements which are customary in the Oil and Gas Business;

(3) Investments of operating funds on behalf of co-owners of properties pursuant to operating agreements; and

(4) direct or indirect ownership interests in drilling rigs and related equipment, including, without limitation, transportation equipment.

"Permitted Investment" means an Investment by the Company or any Restricted Subsidiary in or pursuant to:

(1) the Company, a Restricted Subsidiary or a Person which will, upon the making of such Investment, become a Restricted Subsidiary;provided, however, that the primary business of such Restricted Subsidiary is the Oil and Gas Business;

(2) another Person if as a result of such Investment such other Person is merged or consolidated with or into, or transfers or conveys all or substantially all its assets to, the Company or a Restricted Subsidiary;provided, however, that such Person's primary business is the Oil and Gas Business;

(3) cash and Cash Equivalents;

(4) receivables owing to the Company or any Restricted Subsidiary created or acquired in the ordinary course of business and payable or dischargeable in accordance with customary trade terms;provided, however, that such trade terms may include such concessionary trade terms as the Company or any such Restricted Subsidiary deems reasonable under the circumstances;

(5) payroll, travel and similar advances to cover matters that are expected at the time of such advances ultimately to be treated as expenses for accounting purposes and that are made in the ordinary course of business;

(6) relocation allowances for, and loans or advances to, employees, officers or directors of the Company or any Restricted Subsidiary in the ordinary course of business consistent with past practices in an aggregate amount not in excess of $2.0 million with respect to all loans or advances made since the Issue Date (without giving effect to the forgiveness of any such loan);

(7) Capital Stock, obligations or securities received in settlement or compromise of debts created in the ordinary course of business and owing to the Company or any Restricted Subsidiary, in settlement or compromise of litigation, arbitration or other disputes with Persons that are not Affiliates of the Company or any Restricted Subsidiary, in satisfaction of judgments or arbitration awards, or pursuant to any plan of reorganization or similar arrangement upon the bankruptcy or insolvency of a debtor;

(8) Investments made as a result of the receipt of non-cash consideration from an Asset Disposition that was made pursuant to and in compliance withSection 3.8 or from a disposition of assets permitted under this Indenture and not constituting an Asset Disposition;

(9) any Person to the extent such Investments consist of prepaid expenses, negotiable instruments held for collection on behalf of the Company or any Restricted Subsidiary and lease,

utility and workers' compensation, performance and other similar deposits made in the ordinary course of business by the Company or any Restricted Subsidiary;

(10) Investments in existence on the Issue Date or made pursuant to agreements or commitments in effect on the Issue Date, and any amendment, modification, restatement, supplement, extension, renewal, refunding, replacement or refinancing, in whole or in part thereof;

(11) Currency Agreements, Interest Rate Agreements, Commodity Agreements and related Hedging Obligations, which transactions or obligations are Incurred in compliance withSection 3.3;

(12) Investments by the Company or any of its Restricted Subsidiaries, together with all other Investments pursuant to this clause (12) outstanding on the date such Investment is made, in an aggregate amount at the time of such Investment not to exceed the greater of (i) $10.0 million, and (ii) 0.5% of Adjusted Consolidated Net Tangible Assets (determined as of the date of the making of any such Investment), outstanding at any one time (with the fair market value of such Investment being measured at the time made and without giving effect to subsequent changes in value);

(13) Guarantees issued in accordance withSection 3.3;

(14) any Asset Swap; and

(15) Investments in property, plant and equipment used in the ordinary course of business of the Company or any Restricted Subsidiary and Permitted Business Investments.

In order to be a Permitted Investment, an Investment need not be permitted solely by one subsection of this definition but may be permitted in part by one such subsection and in part by one or more other subsections of this definition.

"Permitted Liens" means, with respect to any Person:

(1) Liens securing Indebtedness and other obligations under, and related Hedging Obligations and Liens on property and assets of Restricted Subsidiaries securing Guarantees of Indebtedness and other obligations of the Company under, any Credit Facility permitted to be Incurred under this Indenture under the provisions described inSection 3.3(b)(1);

(2) pledges or deposits or other security made or provided by such Person under workers' compensation laws, unemployment insurance laws or similar legislation, or good faith deposits in connection with bids, tenders, contracts (other than for the payment of Indebtedness) or leases to which such Person is a party, or deposits to secure public, regulatory or statutory obligations of such Person or deposits of cash or Cash Equivalents to secure performance, surety, appeal or similar bonds to which such Person is a party, or deposits as security for contested taxes or import or customs duties or for the payment of rent, or any Lien securing letters of credit, bankers' acceptances or completion guarantees described inSection 3.3(b)(8), in each case Incurred in the ordinary course of business;

(3) Liens imposed by law, including, without limitation, carriers', warehousemen's, suppliers', mechanics', materialmen's, repairmen's and similar Liens arising in the ordinary course of business;

(4) Liens for taxes, assessments or other governmental charges not yet subject to penalties for non-payment or which are being contested in good faith by appropriate negotiations or proceedings provided appropriate reserves required pursuant to GAAP have been made in respect thereof;

(5) Liens in favor of issuers of surety or performance bonds or letters of credit or bankers' acceptances issued pursuant to the request of and for the account of such Person in the ordinary course of its business;provided, however, that such letters of credit do not constitute Indebtedness;

(6) survey exceptions, encumbrances, ground leases, easements or reservations of, or rights of others for, licenses, rights of way, sewers, electric lines, telegraph and telephone lines, gathering systems, pipelines and other similar purposes, or zoning, building codes, surface leases or surface access agreements and other similar rights in respect of surface operations, or other restrictions (including, without limitation, minor defects or irregularities in title and similar encumbrances) as to the use of real properties or liens incidental to the conduct of the business of such Person or to the ownership of its properties which do not in the aggregate materially impair the use of such properties in the operation of the business of such Person or the value of such property for the purpose of such business;

(7) Liens securing Hedging Obligations so long as the related Indebtedness is, and is permitted under this Indenture to be secured by a Lien;

(8) leases, licenses, subleases and sublicenses of property and assets (including, without limitation, real property, personal property and intellectual property rights) which do not materially interfere with the ordinary conduct of the business of the Company or any of its Restricted Subsidiaries;

(9) judgment Liens;provided that any such judgment Lien (i) has not and does not, together with other judgment Liens, give rise to an Event of Default and (ii) is adequately bonded (or any reserve or other appropriate provision as is required in conformity with GAAP has been made therefor) and any appropriate legal proceedings which may have been duly initiated for the review of such judgment have not been finally terminated or the period within which such proceedings may be initiated has not expired;

(10) Liens for the purpose of securing Indebtedness represented by Capitalized Lease Obligations, mortgage financings, purchase money obligations or other payments Incurred to finance all or any part of the purchase price or cost of construction or improvement of assets or property (other than Capital Stock or other Investments) acquired, constructed or improved in the ordinary course of business;provided that:

(a) the aggregate principal amount of Indebtedness secured by such Liens is otherwise permitted to be Incurred under this Indenture and does not exceed the cost of the assets or property so acquired, constructed or improved; and

(b) such Liens are created within 180 days of construction, acquisition or improvement of such assets or property and do not encumber any other assets or property of the Company or any Restricted Subsidiary other than such assets or property and assets affixed or appurtenant thereto;

(11) Liens arising solely by virtue of any statutory or common law provisions relating to banker's Liens, rights of set-off or similar rights and remedies as to deposit accounts or other funds maintained with a depositary institution;provided that:

(a) such deposit account is not a dedicated cash collateral account and is not subject to restrictions against access by the Company in excess of those set forth by regulations promulgated by the Federal Reserve Board; and

(b) such deposit account is not intended by the Company or any Restricted Subsidiary to provide collateral to the depository institution;

(12) Liens arising from Uniform Commercial Code financing statement filings regarding operating leases entered into by the Company and its Restricted Subsidiaries in the ordinary course of business;

(13) Liens existing on the Issue Date (other than Liens permitted under clause (1));

(14) Liens on property, assets or Capital Stock of a Person at the time such Person becomes a Restricted Subsidiary;provided, however, that such Liens are not created, Incurred or assumed in connection with, or in contemplation of, such other Person becoming a Restricted Subsidiary;provided further, however, that any such Lien may not extend to any other property or assets owned by the Company or any Restricted Subsidiary;

(15) Liens on property, assets or Capital Stock of a Person at the time the Company or a Restricted Subsidiary acquired the property, asset or Capital Stock, including any acquisition by means of a merger or consolidation with or into the Company or any Restricted Subsidiary;provided, however, that such Liens are not created, Incurred or assumed in connection with, or in contemplation of, such acquisition;provided further, however, that such Liens may not extend to any other property or asset owned by the Company or any Restricted Subsidiary;

(16) Liens securing Indebtedness or other obligations of a Restricted Subsidiary owing to the Company or a Wholly Owned Subsidiary;

(17) Liens securing the Notes and Subsidiary Guarantees;

(18) Liens securing Refinancing Indebtedness Incurred to refinance, refund, replace, amend, extend or modify, as a whole or in part, Indebtedness that was previously so secured pursuant to clauses (10), (13), (14), (15), (17) and (18) of this definition,provided that any such Lien is limited to all or part of the same property or assets (plus improvements, accessions, proceeds or dividends or distributions in respect thereof) that secured (or, under the written arrangements under which the original Lien arose, could secure) the Indebtedness being refinanced, refunded, replaced, amended, extended or modified or is in respect of any Capital Stock, property or asset that is the security for a Permitted Lien hereunder;

(19) any interest or title of a lessor under any Capitalized Lease Obligation or operating lease;

(20) Liens under industrial revenue, municipal or similar bonds;

(21) Liens in respect of Production Payments and Reserve Sales, which Liens shall be limited to the property or interest that is the subject of such Production Payments and Reserve Sales;

(22) Liens arising under or in connection with oil and/or gas leases, mineral leases, overriding royalty agreements, net profits agreements, production payment agreements, royalty trust agreements, incentive compensation programs on terms that are reasonably customary in the Oil and Gas Business for geologists, geophysicists and other providers of technical services to the Company or any Restricted Subsidiary, farm-out agreements, farm-in agreements, division orders, participation agreements, partnership agreements (general and limited), master limited partnership agreements, limited liability company agreements, joint venture agreements, contracts for the sale, purchase, exchange, transportation, gathering, processing, marketing or storage of Hydrocarbons, unitizations, communitizations, and pooling designations, declarations, orders and agreements, development agreements, operating agreements, production sales contracts, area of mutual interest agreements, gas balancing or deferred production agreements, injection, repressuring and recycling agreements, salt water or other disposal agreements, seismic or geophysical permits or agreements, and other agreements which are customary in the Oil and Gas Business;provided, however, in all instances that such Liens are limited to the property or assets that are the subject of the relevant agreement, program, designation, declaration, order or contract;

(23) Liens on pipelines or pipeline facilities that arise by operation of law;

(24) Liens on funds held in trust for or on behalf of third parties;

(25) Liens in respect of rights of netting, offset and setoff Incurred in the ordinary course of business;

(26) deposits, escrows or pledges to secure obligations under purchase and sale agreements and Liens arising under contracts for the sale, purchase or exchange of any Capital Stock, property or asset pending the closing of such transaction;

(27) Liens in respect of the financing of insurance premiums and deposits as security for the payment of insurance-related obligations (including, without limitation, in respect of deductibles, self-insured retention amounts and premiums and adjustments thereto);

(28) conditional sale, title retention, consignment or similar arrangements for the sale of goods or services entered into in the ordinary course of business;

(29) Liens on property of an Unrestricted Subsidiary at the time that it is designated as a Restricted Subsidiary pursuant to the definition of "Unrestricted Subsidiary;"provided that such Liens were not incurred in connection with, or contemplation of, such designation;

(30) encumbrances and restrictions permitted to exist pursuant toSection 3.7; and

(31) Liens securing Indebtedness (other than Subordinated Obligations and Guarantor Subordinated Obligations) in an aggregate principal amount at any time outstanding not to exceed $15.0 million.

"Person" means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, limited liability company, government or any agency or political subdivision thereof or any other entity.

"Preferred Stock," as applied to the Capital Stock of any Person, means Capital Stock of any class or classes (however designated) which is preferred as to the payment of dividends, or as to the distribution of assets upon any voluntary or involuntary liquidation or dissolution of such Person, over shares of Capital Stock of any other class of such Person.

"Production Payments and Reserve Sales" means the grant or transfer by the Company or a Restricted Subsidiary to any Person of a royalty, overriding royalty, revenue interest, net revenue interest, net profits interest, reversionary interest, production payment (including, without limitation, Volumetric Production Payments and Dollar-Denominated Production Payments), partnership or other interest in oil and gas properties or the right to receive all or a portion of the production or the proceeds from the sale of production attributable to such properties where the holder of such interest has recourse solely to such production or proceeds of production, subject to the obligation of the grantor or transferor to operate and maintain, or cause the subject interests to be operated and maintained in a reasonably prudent manner or other customary standard or subject to the obligation of the grantor or transferor to indemnify for environmental, title or other matters customary in the Oil and Gas Business, including, without limitation, any such grants or transfers pursuant to incentive compensation programs on terms that are reasonably customary in the Oil and Gas Business for geologists, geophysicists or other providers of technical services to the Company or a Restricted Subsidiary.

"Rating Agencies" means Standard & Poor's and Moody's or if Standard & Poor's or Moody's or both shall not make a rating on the Notes publicly available, a nationally recognized statistical rating agency or agencies, as the case may be, selected by the Company (as evidenced by a resolution of the Board of Directors) which shall be substituted for Standard & Poor's or Moody's or both, as the case may be.

"Receivable" means a right to receive payment arising from a sale or lease of goods or the performance of services by a Person pursuant to an arrangement with another Person pursuant to which such other Person is obligated to pay for goods or services under terms that permit the purchase of such goods and services on credit and shall include, in any event, any items of property that would be classified as an "account," "chattel paper," "payment intangible" or "instrument" under the

Uniform Commercial Code as in effect in the State of New York and any "supporting obligations" as so defined.

"Receivables Fees" means any fees or interest paid to purchasers or lenders providing the financing in connection with a securitization transaction, factoring agreement or other similar agreement, including, without limitation, any such amounts paid by discounting the face amount of Receivables or participations therein transferred in connection with a securitization transaction, factoring agreement or other similar arrangement, regardless of whether any such transaction is structured as on-balance sheet or off-balance sheet or through a Restricted Subsidiary or an Unrestricted Subsidiary.

"Refinancing Indebtedness" means Indebtedness that is Incurred to refund, refinance, replace, exchange, renew, prepay, purchase, redeem, retire, repay or extend (including, without limitation, pursuant to any defeasance or discharge mechanism) (collectively, "refinance," "refinances" and "refinanced" shall each have a correlative meaning) any Indebtedness existing on the date of this Indenture or Incurred in compliance with this Indenture (including, without limitation, Indebtedness of the Company that refinances Indebtedness of any Restricted Subsidiary and Indebtedness of any Restricted Subsidiary that refinances Indebtedness of another Restricted Subsidiary) including, without limitation, Indebtedness that refinances Refinancing Indebtedness,provided, however, that:

(1) if the Stated Maturity of the Indebtedness being refinanced is earlier than the Stated Maturity of the Notes, the Refinancing Indebtedness has a Stated Maturity no earlier than the Stated Maturity of the Indebtedness being refinanced or (b) if the Stated Maturity of the Indebtedness being refinanced is later than the Stated Maturity of the Notes, the Refinancing Indebtedness has a Stated Maturity at least 91 days later than the Stated Maturity of the Notes;

(2) the Refinancing Indebtedness has an Average Life at the time such Refinancing Indebtedness is Incurred that is equal to or greater than the Average Life of the Indebtedness being refinanced;

(3) such Refinancing Indebtedness is Incurred in an aggregate principal amount (or if issued with original issue discount, an aggregate issue price) that is equal to or less than the sum of the aggregate principal amount (or if issued with original issue discount, the aggregate accreted value) then outstanding or committed of the Indebtedness being refinanced (plus, without duplication, any additional Indebtedness Incurred to pay accrued interest and fees and expenses Incurred in connection therewith, including, without limitation, any premium and defeasance costs); and

(4) if the Indebtedness being refinanced is subordinated in right of payment to the Notes or the Subsidiary Guarantee, such Refinancing Indebtedness is subordinated in right of payment to the Notes or the Subsidiary Guarantee on terms that, in the good faith reasonable determination of the Company or the applicable Restricted Subsidiary are at least as favorable to the holders as those contained in the documentation governing the Indebtedness being refinanced.

"Responsible Officer" shall mean, when used with respect to the Trustee, any officer within the corporate trust department of the Trustee, including any vice president, assistant vice president, assistant secretary, assistant treasurer, trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the persons who at the time shall be such officers, respectively, or to whom any corporate trust matter is referred because of such person's knowledge of and familiarity with the particular subject and who shall have direct responsibility for the administration of this Indenture.

"Restricted Investment" means any Investment other than a Permitted Investment.

"Restricted Subsidiary" means any Subsidiary of the Company other than an Unrestricted Subsidiary.

"Sale/Leaseback Transaction" means an arrangement relating to property now owned or hereafter acquired whereby the Company or a Restricted Subsidiary transfers such property to a Person and the Company or a Restricted Subsidiary leases it from such Person within 90 days after the date of the transfer to such Person.

"SEC" means the United States Securities and Exchange Commission.

"Securities Act" means the Securities Act of 1933, as amended, and the rules and regulations of the SEC promulgated thereunder.

"Senior Secured Credit Agreement" means the Amended and Restated Credit Agreement dated as of June 13, 2005 among the Company, the lenders from time to time party thereto, JPMorgan Chase Bank, N.A., as an LC Issuer and as Administrative Agent, U.S. Bank National Association and Bank of America, N.A., as Co-Syndication Agents, and Wells Fargo Bank, N.A., as Documentation Agent, including, without limitation, any related notes, guarantees, collateral documents, instruments and agreements entered into in connection therewith, in each case, as the same may be amended, restated, modified, renewed, restructured, supplemented, extended, substituted, refunded, replaced or refinanced in whole or in part from time to time (including, without limitation, increasing the amount loaned thereunder,provided that such additional Indebtedness is Incurred in accordance withSection 3.3, extending the maturity of any Indebtedness Incurred thereunder or contemplated thereby or deleting, adding or substituting one or more parties thereto (whether or not such added or substituted parties are banks or other institutional lenders));provided that a Senior Secured Credit Agreement shall not (1) include Indebtedness issued, created or Incurred pursuant to a registered offering of securities under the Securities Act or a private placement of securities (including under Rule 144A or Regulation S) pursuant to an exemption from the registration requirements of the Securities Act or (2) relate to Indebtedness that does not consist exclusively of Pari Passu Indebtedness or Guarantor Pari Passu Indebtedness.

"Significant Subsidiary" means any Restricted Subsidiary that would be a "Significant Subsidiary" of the Company within the meaning of Rule 1-02 under Regulation S-X promulgated by the SEC.

"Standard & Poor's" means Standard & Poor's, a division of the McGraw-Hill Companies, Inc.

"Stated Maturity" means, with respect to any security or Indebtedness, the date specified in such security or Indebtedness as the fixed date on which the payment of principal of such security or Indebtedness is due and payable, including, without limitation, pursuant to any mandatory redemption provision, but shall not include any contingent obligations to repay, redeem or repurchase any such principal prior to the date originally scheduled for the payment thereof.

"Subordinated Obligation" means any Indebtedness of the Company (whether outstanding on the Issue Date or thereafter Incurred) which is subordinated or junior in right of payment to the Notes pursuant to a written agreement.

"Subsidiary" of any Person means (a) any corporation, association or other business entity (other than a partnership, joint venture, limited liability company or similar entity) of which more than 50% of the total ordinary voting power of shares of Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof (or persons performing similar functions) or (b) any partnership, joint venture, limited liability company or similar entity of which more than 50% of the capital accounts, distribution rights, total equity and voting interests or general partnership interests of a general partnership or general and limited partnership interests, taken together, of a limited partnership, as applicable, is, in the case of clauses (a) and (b), at the time owned or controlled, directly or indirectly, by (1) such Person, (2) such Person and one or more Subsidiaries of such Person or (3) one or more Subsidiaries of such Person. Unless otherwise specified herein, each reference to a Subsidiary will refer to a Subsidiary of the Company.

"Subsidiary Guarantee" means, individually, any Guarantee of payment of the Notes by a Subsidiary Guarantor pursuant to the terms of this Indenture and any supplemental indenture thereto, and, collectively, all such Guarantees. Each such Subsidiary Guarantee shall be executed and delivered pursuant to the terms of this Indenture and any supplemental indenture (including pursuant to a supplemental indenture substantially in the form of Exhibit C).

"Subsidiary Guarantor" means each Restricted Subsidiary (other than a Foreign Subsidiary) in existence on the Issue Date that provides a Subsidiary Guarantee on the Issue Date and any other Restricted Subsidiary (other than a Foreign Subsidiary) that provides a Subsidiary Guarantee in accordance with this Indenture,provided that upon release or discharge of any such Restricted Subsidiary from its Subsidiary Guarantee in accordance with this Indenture, such Restricted Subsidiary shall cease to be a Subsidiary Guarantor.

"TIA" or "Trust Indenture Act" means the Trust Indenture Act of 1939 (15U.S.C. §§ 77aaa-77bbbb), as in effect from time to time.

"Trustee" means the party named as such in this Indenture until a successor replaces it and, thereafter, means such successor.

"Uniform Commercial Code" means the New York Uniform Commercial Code as in effect from time to time.

"Unrestricted Subsidiary" means:

(1) any Subsidiary of the Company that at the time of determination shall be designated an Unrestricted Subsidiary by the Board of Directors of the Company in the manner provided below; and

(2) any Subsidiary of an Unrestricted Subsidiary.

The Board of Directors of the Company may designate any Subsidiary of the Company (including, without limitation, any newly acquired or newly formed Subsidiary or a Person becoming a Subsidiary through merger or consolidation or Investment therein) to be an Unrestricted Subsidiary only if on the date such Subsidiary is designated an Unrestricted Subsidiary:

(1) such Subsidiary or any of its Subsidiaries does not own any Capital Stock or Indebtedness of or have any Investment in, or own or hold any Lien on any property of, any other Subsidiary of the Company which is not a Subsidiary of the Subsidiary to be so designated or otherwise an Unrestricted Subsidiary or simultaneously being designated an Unrestricted Subsidiary;

(2) all the Indebtedness of such Subsidiary and its Subsidiaries shall, at the date of designation, and will at all times thereafter, consist of Non-Recourse Debt;

(3) such designation and the Investment of the Company in such Subsidiary complies withSection 3.4;

(4) such Subsidiary, either alone or in the aggregate with all other Unrestricted Subsidiaries, does not operate, directly or indirectly, all or substantially all of the business of the Company and its Subsidiaries;

(5) such Subsidiary is a Person with respect to which neither the Company nor any of its Restricted Subsidiaries has any direct or indirect obligation:

(a) to subscribe for additional Capital Stock of such Person; or

(b) to maintain or preserve such Person's financial condition or to cause such Person to achieve any specified levels of operating results; and

(6) on the date such Subsidiary is designated an Unrestricted Subsidiary, such Subsidiary is not a party to any agreement, contract, arrangement or understanding with the Company or any Restricted Subsidiary with terms materially less favorable to the Company or such Restricted Subsidiary, as the case may be, than those that could be obtained in a comparable transaction at the time of such transaction in arm's-length dealings with a Person who is not an Affiliate of the Company.

Any such designation by the Board of Directors of the Company shall be evidenced to the Trustee by filing with the Trustee a resolution of the Board of Directors of the Company giving effect to such designation and an Officers' Certificate certifying that such designation complies with the foregoing conditions. If, at any time, any Unrestricted Subsidiary would fail to meet the foregoing requirements as an Unrestricted Subsidiary, it shall thereafter cease to be an Unrestricted Subsidiary for purposes of this Indenture and any Indebtedness of such Subsidiary shall be deemed to be Incurred as of such date.

The Board of Directors of the Company may designate any Unrestricted Subsidiary to be a Restricted Subsidiary;provided that immediately after giving effect to such designation, no Default or Event of Default shall have occurred and be continuing or would occur as a consequence thereof and the Company could Incur at least $1.00 of additional Indebtedness pursuant toSection 3.3(a) on a pro forma basis taking into account such designation.

"U.S. Government Obligations" means securities that are (a) direct obligations of the United States of America for the timely payment of which its full faith and credit is pledged or (b) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America the timely payment of which is unconditionally guaranteed as a full faith and credit obligation of the United States of America, which, in either case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depositary receipt issued by a bank (as defined in Section 3(a)(2) of the Securities Act), as custodian with respect to any such U.S. Government Obligations or a specific payment of principal of or interest on any such U.S. Government Obligations held by such custodian for the account of the holder of such depositary receipt;provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depositary receipt from any amount received by the custodian in respect of the U.S. Government Obligations or the specific payment of principal of or interest on the U.S. Government Obligations evidenced by such depositary receipt.

"Volumetric Production Payments" means production payment obligations recorded as deferred revenue in accordance with GAAP, together with all undertakings and obligations in connection therewith.

"Voting Stock" of a Person means all classes of Capital Stock of such Person then outstanding and normally entitled to vote in the election of directors, managers or trustees, as applicable.

"Wholly Owned Subsidiary" means a Restricted Subsidiary, all of the Capital Stock of which (other than directors' qualifying shares) is owned by the Company or one or more other Wholly Owned Subsidiaries.

In addition to the terms defined above, the following terms are defined in this Indenture where indicated below:

Term	Defined in Section
"Actual Knowledge"	7.2	(g)
"Additional Notes"	Recitals
"Affiliate Transaction"	3.9	(a)
"Agent Members"	2.1	(e)
"Asset Disposition Offer"	3.8	(b)
"Asset Disposition Offer Amount"	3.8	(c)
"Asset Disposition Offer Period"	3.8	(c)
"Asset Disposition Purchase Date"	3.8	(c)
"Authenticating Agent"	2.2
"bankruptcy provisions	6.1	(7)
"Change of Control Offer"	3.10	(b)
"Change of Control Payment"	3.10	(b)
"Change of Control Payment Date"	3.10	(b)
"Company"	Introductory paragraph
"Company Order"	2.2
"Covenant Defeasance"	8.2	(a)
"cross acceleration provision	6.1	(6)
"Defaulted Interest"	2.11
"Event of Default"	6.1
"Excess Proceeds"	3.8	(b)
"Global Note"	2.1	(b)
"Initial Notes"	Recitals
"judgment default provision"	6.1	(9)
"legal defeasance"	8.2	(a)
"Legal Holiday"	11.8
"Notes"	Recitals
"Note Register"	2.3
"Obligations"	10.1
"Pari Passu Notes"	3.8	(b)
"Paying Agent"	2.3
"payment default"	6.1	(6)
"protected purchaser"	2.7
"Redemption Date"	5.3
"Registrar"	2.3
"Reinstatement Date"	3.15	(b)
"Restricted Payment"	3.4	(a)
"Special Interest Payment Date"	2.11	(a)
"Special Record Date"	2.11	(a)
"Successor Company"	4.1(a)(i)
"Suspended Covenants"	3.15	(a)
"Suspension Period"	3.15	(b)
"Trustee"	Introductory Paragraph

SECTION 1.2. Incorporation by Reference of Trust Indenture Act. This Indenture is subject to the mandatory provisions of the TIA which are incorporated by reference in and made a part of this Indenture. The following TIA terms have the following meanings:

"Commission" means the SEC.

"indenture notes" means the Notes.

"indenture security holder" means a Holder.

"indenture to be qualified" means this Indenture.

"indenture trustee" or "institutional trustee" means the Trustee.

"obligor" on notes means the Company and any other obligor on the Notes.

All other TIA terms used in this Indenture that are defined by the TIA, defined by the TIA reference to another statute or defined by SEC rule have the meanings assigned to them by such definitions.

SECTION 1.3. Rules of Construction. Unless the context otherwise requires:

(1) a term has the meaning assigned to it;

(2) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

(3) "or" is not exclusive;

(4) "including" means including without limitation;

(5) words in the singular include the plural and words in the plural include the singular;

(6) unsecured Indebtedness shall not be deemed to be subordinate or junior to secured Indebtedness merely by virtue of its nature as unsecured Indebtedness;

(7) the principal amount of any noninterest bearing or other discount security at any date shall be the principal amount thereof that would be shown on a balance sheet of the issuer dated such date prepared in accordance with GAAP;

(8) the principal amount of any Preferred Stock shall be (i) the maximum liquidation value of such Preferred Stock or (ii) the maximum mandatory redemption or mandatory repurchase price with respect to such Preferred Stock, whichever is greater;

(9) all references to the date the Notes were originally issued shall refer to the Issue Date or the date any Additional Notes were originally issued, as the case may be;

(10) references to sections of or rules under the Securities Act or the Exchange Act, as the case may be, will be deemed to include substitute, replacement of successor sections or rules adopted by the SEC from time to time;

(11) "$" and "U.S. dollars" each refer to United States dollars, or such other money of the United States of America that at the time of payment is legal tender for payment of public and private debts; and

(12) all references herein to particular Sections or Articles shall refer to this Indenture unless otherwise so indicated.

ARTICLE II

The Notes

SECTION 2.1. Form, Dating and Terms. (a) The aggregate principal amount of Notes that may be authenticated and delivered under this Indenture is unlimited. The Initial Notes issued on the date hereof will be in an aggregate principal amount of $300,000,000. In addition, the Company may issue, from time to time in accordance with the provisions of this Indenture, including, without limitation,Section 3.3(a) hereof, Additional Notes. Furthermore, Notes may be authenticated and delivered upon registration or transfer, or in lieu of, other Notes pursuant toSection 2.6,2.7,2.9 or 9.5 or in connection with an Asset Disposition Offer pursuant toSection 3.8 or a Change of Control Offer pursuant toSection 3.10.

The Notes shall be known and designated as "[ ]% Senior Notes due 2017" of the Company.

With respect to any Additional Notes, the Company shall set forth in (a) a Board Resolution and (b)(i) an Officers' Certificate or (ii) one or more indentures supplemental hereto, the following information:

(i) the aggregate principal amount of such Additional Notes to be authenticated and delivered pursuant to this Indenture;

(ii) the issue price and the issue date of such Additional Notes; and

(iii) that such Additional Notes are registered under the Securities Act and shall be issued substantially in the form of Exhibit A hereto.

The Initial Notes and the Additional Notes shall be considered collectively as a single class for all purposes of this Indenture. Holders of the Initial Notes and the Additional Notes shall vote and consent together on all matters to which such Holders are entitled to vote or consent as one class, and none of the Holders of the Initial Notes or the Additional Notes shall have the right to vote or consent as a separate class on any matter to which such Holders are entitled to vote or consent.

(b) The Initial Notes are being offered and sold by the Company pursuant to an Underwriting Agreement, dated April [ ], 2007, among the Company, the Subsidiary Guarantors, J.P. Morgan Securities Inc., Lehman Brothers Inc., Calyon Securities (USA) Inc., Deutsche Bank Securities Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Raymond James & Associates, Inc. and UBS Securities LLC. Additional Notes offered after the date hereof may be offered and sold by the Company from time to time pursuant to one or more purchase agreements in accordance with applicable law.

Initial Notes and Additional Notes offered and sold under this Indenture shall be issued in the form of one or more permanent global Notes substantially in the form of Exhibit A (each, a "Global Note"), which is hereby incorporated by reference and made a part of this Indenture, duly executed by the Company and authenticated by the Trustee as hereinafter provided. A Global Note may be represented by more than one certificate, if so required by the Depositary's rules regarding the maximum principal amount to be represented by a single certificate. The aggregate principal amount of the Global Notes may from time to time be increased or decreased by adjustments made on the records of the Trustee and the Depositary or its nominee, as hereinafter provided.

The principal of, premium, if any, and interest on the Notes shall be payable at the office or agency of the Company maintained for such purpose in the Borough of Manhattan, The City of New York, or at such other office or agency of the Company as may be maintained for such purpose pursuant toSection 2.3;provided, however, that, at the option of the Company, each installment of interest may be paid by (i) check mailed to addresses of the Persons entitled thereto as such addresses shall appear on the Note Register or (ii) wire transfer to an account located in the United States

maintained by the payee. Payments in respect of Notes represented by a Global Note registered in the name of or held by the Depositary or its nominee (including principal, premium, if any, and interest) shall be made by wire transfer of immediately available funds to the accounts specified by the Depositary. Payments in respect of Notes represented by Definitive Notes (including principal, premium, if any, and interest) held by a Holder of at least $1,000,000 aggregate principal amount of Notes represented by Definitive Notes shall be made by wire transfer to a U.S. dollar account maintained by the payee with a bank in the United States if such Holder elects payment by wire transfer by giving written notice to the Trustee or the Paying Agent to such effect designating such account no later than 15 days immediately preceding the relevant due date for payment (or such other date as the Trustee may accept).

Each Global Note shall be in the form ofExhibit A. The Notes may have notations, legends or endorsements required by law, stock exchange rule or usage, in addition to those set forth onExhibit A and inSection 2.1(d). The Company shall approve the forms of the Notes and any notation, endorsement or legend on them. Any such notation, endorsement or legend shall be furnished to the Trustee in writing. Each Note shall be dated the date of its authentication. The terms of the Notes set forth inExhibit A are part of the terms of this Indenture and, to the extent applicable, the Company and the Trustee, by their execution and delivery of this Indenture, expressly agree to be bound by such terms.

(c) Denominations. The Notes shall be issuable only in fully registered form, without coupons, and only in denominations of $2,000 or integral multiples of $1,000 in excess thereof.

(d) Depositary Legend. Each Global Note, whether or not an Initial Note, shall bear the following legend on the face thereof:

"UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO DTC, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF."

(e) Book-Entry Provisions. (i) ThisSection 2.1(e) shall apply only to Global Notes deposited with the Notes Custodian with respect to such Notes (as appointed by the Depositary), or any successor Person thereto, which shall initially be the Trustee.

(ii) Each Global Note initially shall (x) be registered in the name of the Depositary for such Global Note or the nominee of such Depositary, (y) be delivered to the Notes Custodian for such Depositary and (z) bear the legend set forth inSection 2.1(d).

(iii) Members of, or participants in, the Depositary ("Agent Members") shall have no rights under this Indenture with respect to any Global Note held on their behalf by the

Depositary or by the Trustee as the custodian of the Depositary or under such Global Note, and the Depositary may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of such Global Note for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or impair, as between the Depositary and its Agent Members, the operation of customary practices of the Depositary governing the exercise of the rights of a Holder of a beneficial interest in any Global Note.

(iv) The registered Holder of a Global Note may grant proxies and otherwise authorize any person, including Agent Members and persons that may hold interests through Agent Members, to take any action which a Holder is entitled to take under this Indenture or the Notes.

(v) In connection with any transfer of a portion of the beneficial interest in a Global Note pursuant to subsection (f) of thisSection 2.1 to beneficial owners who are required to hold Definitive Notes, the Trustee shall reflect on its books and records the date and a decrease in the principal amount of such Global Note in an amount equal to the principal amount of the beneficial interest in the Global Note to be transferred, and the Company shall execute, and the Trustee shall authenticate and deliver, one or more Definitive Notes of like tenor and amount.

(vi) In connection with the transfer of an entire Global Note to beneficial owners pursuant to subsection (f) of this Section, such Global Note shall be deemed to be surrendered to the Trustee for cancellation, and the Company shall execute, and the Trustee shall authenticate and deliver, to each beneficial owner identified by the Depositary in exchange for its beneficial interest in such Global Note, an equal aggregate principal amount of Definitive Notes of authorized denominations.

(vii) Any Holder of a Global Note shall, by acceptance of such Global Note, agree that transfers of beneficial interests in such Global Note may be effected only through a book-entry system maintained by (a) the Holder of such Global Note (or its agent) or (b) any Holder of a beneficial interest in such Global Note, and that ownership of a beneficial interest in such Global Note shall be required to be reflected in a book entry.

(f) Definitive Notes. Except as provided below, owners of beneficial interests in Global Notes shall not be entitled to receive Definitive Notes. If required to do so pursuant to any applicable law or regulation, beneficial owners may obtain Definitive Notes in exchange for their beneficial interests in a Global Note upon written request in accordance with the Depositary's and the Registrar's procedures. In addition, Definitive Notes shall be delivered to all beneficial owners in exchange for their beneficial interests in a Global Note if (i) the Depositary notifies the Company that it is unwilling or unable to continue as depositary for such Global Note or the Depositary ceases to be a clearing agency registered under the Exchange Act, at a time when the Depositary is required to be so registered in order to act as Depositary, and in each case a successor depositary is not appointed by the Company within 90 days of such notice or, (ii) the Company executes and delivers to the Trustee and Registrar an Officers' Certificate stating that such Global Note shall be so exchangeable or (iii) an Event of Default has occurred and is continuing and the Registrar has received a request from the Depositary to deliver Definitive Notes to all beneficial owners in exchange for their beneficial interests in a Global Note.

(g) In connection with the exchange of a portion of a Definitive Note for a beneficial interest in a Global Note, the Trustee shall cancel such Definitive Note, and the Company shall execute, and the Trustee shall authenticate and deliver, to the transferring Holder a new Definitive Note

representing the principal amount not so transferred and the relevant Global Note shall be increased by an adjustment made on the records of the Trustee and the Depositary.

SECTION 2.2. Execution and Authentication. Two Officers shall sign the Notes for the Company by manual or facsimile signature. If an Officer whose signature is on a Note no longer holds that office at the time the Trustee authenticates the Note, the Note shall be valid nevertheless.

A Note shall not be valid until an authorized signatory of the Trustee manually authenticates the Note. The signature of the Trustee on a Note shall be conclusive evidence that such Note has been duly and validly authenticated and issued under this Indenture. A Note shall be dated the date of its authentication.

At any time and from time to time after the execution and delivery of this Indenture, the Trustee shall authenticate and make available for delivery: (1) Initial Notes for original issue on the Issue Date in an aggregate principal amount of $300,000,000 and (2) subject to the terms of this Indenture, Additional Notes for original issue in an unlimited principal amount, in each case upon a written order of the Company signed by two Officers or by an Officer and an Assistant Secretary of the Company (the "Company Order"). Such Company Order shall specify the amount of the Notes to be authenticated and the date on which the original issue of Notes is to be authenticated and whether the Notes are to be Initial Notes or Additional Notes.

The Trustee may (at the expense of the Company) appoint an agent (the "Authenticating Agent") reasonably acceptable to the Company to authenticate the Notes. Unless limited by the terms of such appointment, any such Authenticating Agent may authenticate Notes whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent.

In case the Company, pursuant toArticle IV shall be consolidated or merged with or into any other Person or shall convey, transfer, lease or otherwise dispose of its properties and assets substantially as an entirety to any Person, and the successor Person resulting from such consolidation, or surviving such merger, or into which the Company shall have been merged, or the Person which shall have received a conveyance, transfer, lease or other disposition as aforesaid, shall have executed an indenture supplemental hereto with the Trustee pursuant toArticle IV, any of the Notes authenticated or delivered prior to such consolidation, merger, conveyance, transfer, lease or other disposition may, from time to time, at the request of the successor Person, be exchanged for other Notes executed in the name of the successor Person with such changes in phraseology and form as may be appropriate, but otherwise in substance of like tenor as the Notes surrendered for such exchange and of like principal amount; and the Trustee, upon Company Order of the successor Person, shall authenticate and deliver Notes as specified in such order for the purpose of such exchange. If Notes shall at any time be authenticated and delivered in any new name of a successor Person pursuant to thisSection 2.2 in exchange or substitution for or upon registration of transfer of any Notes, such successor Person, at the option of the Holders but without expense to them, shall provide for the exchange of all Notes at the time outstanding for Notes authenticated and delivered in such new name.

SECTION 2.3. Registrar and Paying Agent. The Company shall maintain an office or agency where Notes may be presented for registration of transfer or for exchange (the "Registrar") and an office or agency where Notes may be presented for payment (the "Paying Agent"). The Company shall cause each of the Registrar and the Paying Agent to maintain an office or agency in the Borough of Manhattan, The City of New York. The Registrar shall keep a register of the Notes and of their transfer and exchange (the "Note Register"). The Company may have one registrar and one or more additional paying agents. The term "Paying Agent" includes any additional paying agent.

The Company shall enter into an appropriate agency agreement with any Registrar or Paying Agent not a party to this Indenture, which shall incorporate the terms of the TIA. The agreement shall implement the provisions of this Indenture that relate to such agent. The Company shall notify the

Trustee in writing of the name and address of each such agent. If the Company fails to maintain a Registrar or Paying Agent, the Trustee shall act as such and shall be entitled to appropriate compensation therefor pursuant toSection 7.7. The Company or any of its Wholly Owned Subsidiaries that is a Domestic Subsidiary may act as Paying Agent or Registrar.

The Company initially appoints the Trustee as Notes Custodian, Registrar and Paying Agent for the Notes. The Company may remove any Notes Custodian, Registrar or Paying Agent upon written notice to such Notes Custodian, Registrar or Paying Agent and to the Trustee;provided, however, that no such removal shall become effective until (i) acceptance of any appointment by a successor as evidenced by an appropriate agreement entered into by the Company and such successor Notes Custodian, Registrar or Paying Agent, as the case may be, and delivered to the Trustee or (ii) notification to the Trustee that the Trustee shall serve as Notes Custodian, Registrar or Paying Agent until the appointment of a successor in accordance with clause (i) above. The Notes Custodian, Registrar or Paying Agent may resign at any time upon written notice to the Company and the Trustee.

SECTION 2.4. Paying Agent To Hold Money in Trust. By no later than 10:00 a.m. (New York City time) on the date on which any principal of (premium, if any) or interest on any Note is due and payable, the Company shall irrevocably deposit with the Trustee or the Paying Agent a sum sufficient in immediately available funds to pay such principal (premium, if any) or interest when due. The Company shall require each Paying Agent (other than the Trustee) to agree in writing that such Paying Agent shall hold in trust for the benefit of the Holders or the Trustee all money held by such Paying Agent for the payment of principal of or interest on the Notes and shall notify the Trustee in writing of any default by the Company or any Subsidiary Guarantor in making any such payment. If the Company or a Subsidiary acts as Paying Agent, it shall segregate the money held by it as Paying Agent and hold it as a separate trust fund. The Company at any time may require a Paying Agent (other than the Trustee) to pay all money held by it to the Trustee and to account for any funds disbursed by such Paying Agent. Upon complying with this Section, the Paying Agent (if other than the Company or a Subsidiary) shall have no further liability for the money delivered to the Trustee. Upon any bankruptcy, reorganization or similar proceeding with respect to the Company, the Trustee shall serve as Paying Agent for the Notes.

SECTION 2.5. Holder Lists. The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of Holders and shall otherwise comply with TIA § 312(a). If the Trustee is not the Registrar or to the extent otherwise required under the TIA, the Company, on its own behalf and on behalf of each Subsidiary Guarantor, shall furnish to the Trustee, in writing at least seven Business Days before each interest payment date and at such other times as the Trustee may request in writing within 15 days, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of Holders and the Company shall otherwise comply with TIA § 312(a).

SECTION 2.6. Transfer and Exchange.

(a) The Registrar shall retain copies of all letters, notices and other written communications received pursuant toSection 2.1 or thisSection 2.6 in accordance with its records retention policy. The Company shall have the right to inspect and make copies of all such letters, notices or other written communications at any reasonable time upon the giving of reasonable written notice to the Registrar.

(b) Obligations with Respect to Transfers and Exchanges of Notes.

(i) To permit registrations of transfers and exchanges, the Company shall, subject to the other terms and conditions of thisArticle II, execute and the Trustee shall authenticate Definitive Notes and Global Notes at the Registrar's request.

(ii) No service charge will be imposed by the Company, the Trustee or the Registrar for any registration of transfer or exchange, but the Company or the Registrar may require payment of a sum sufficient to cover any transfer tax, assessments, or similar governmental charge payable in connection therewith (other than any such transfer taxes, assessments or similar governmental charges payable upon exchange or transfer pursuant toSections 3.8,3.10 or 9.5).

(iii) The Company shall not be required to transfer or exchange, and the Registrar shall not be required to register the transfer of or exchange of, any Note (1) for a period beginning 15 Business Days before the mailing of a notice of a redemption of Notes to the Holders and ending at the close of business on the day of such mailing or (2) selected for redemption.

(iv) Prior to the due presentation for registration of transfer of any Note, the Company, the Trustee, the Paying Agent or the Registrar may deem and treat the Person in whose name a Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of (premium, if any) and interest on such Note and for all other purposes whatsoever, whether or not such Note is overdue, and none of the Company, the Trustee, the Paying Agent or the Registrar shall be affected by notice to the contrary.

(v) All Notes issued upon any transfer or exchange pursuant to the terms of this Indenture shall evidence the same debt and shall be entitled to the same benefits under this Indenture as the Notes surrendered upon such transfer or exchange.

(c) No Obligation of the Trustee. (i) The Trustee shall have no responsibility or obligation to any beneficial owner of a Global Note, a member of, or a participant in, the Depositary or other Person with respect to the accuracy of the records of the Depositary or its nominee or of any participant or member thereof, with respect to any ownership interest in the Notes or with respect to the delivery to any participant, member, beneficial owner or other Person (other than the Depositary) of any notice or the payment of any amount or delivery of any Notes (or other security or property) under or with respect to such Notes. All notices and communications to be given to the Holders and all payments to be made to Holders in respect of the Notes shall be given or made only to or upon the order of the registered Holders (which shall be the Depositary or its nominee in the case of a Global Note). The rights of beneficial owners in any Global Note shall be exercised only through the Depositary subject to the applicable rules and procedures of the Depositary. The Trustee may rely and shall be fully protected in relying upon information furnished by the Depositary with respect to its members, participants and any beneficial owners.

(ii) The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among Depositary participants, members or beneficial owners in any Global Note) other than, if the Trustee has received prior notice of a transfer, to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by, the terms of this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

SECTION 2.7. Mutilated, Destroyed, Lost or Wrongfully Taken Notes. Subject to the other provisions of this Section 2.7, if a mutilated Note is surrendered to the Registrar or if the Holder of a Note claims that the Note has been lost, destroyed or wrongfully taken, the Company shall issue and the Trustee, upon Company Order, shall authenticate a replacement Note. The Company shall not be required to issue, and the Trustee shall not be required to authenticate, a replacement Note unless (a) the Holder satisfies the requirements of Section 8-405 of the Uniform Commercial Code, such that the Holder (i) notifies the Company and the Trustee within a reasonable time after such Holder has notice of such loss, destruction or wrongful taking and the Registrar has not registered a transfer prior

to receiving such notification, (ii) makes such request to the Company prior to the Company having notice that the Note has been acquired by a protected purchaser as defined in Section 8-303 of the Uniform Commercial Code (a "protected purchaser") and (iii) satisfies any other reasonable requirements of the Company and the Trustee, and (b) such Holder furnishes an indemnity bond sufficient in the judgment of the Company and the Trustee to protect the Company, the Trustee, the Paying Agent and the Registrar from any loss which any of them may suffer if a Note is replaced. If the Holder satisfies the foregoing requirements, in the absence of notice to the Company, any Subsidiary Guarantor or the Trustee that such Note has been acquired by a protected purchaser, the Company shall execute and upon Company Order the Trustee shall authenticate and deliver, in exchange for any such mutilated Note or in lieu of any such destroyed, lost or wrongfully taken Note, a new Note of like tenor and principal amount, bearing a number not contemporaneously outstanding.

In case any such mutilated, destroyed, lost or wrongfully taken Note has become or is about to become due and payable, the Company in its discretion may, instead of issuing a new Note, pay such Note through the Paying Agent upon receiving an indemnity bond sufficient in the judgment of the Company and the Trustee.

Upon the issuance of any new Note under this Section, the Company or the Registrar may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) in connection therewith.

Every new Note issued pursuant to this Section in lieu of any mutilated, destroyed, lost or wrongfully taken Note shall constitute an original additional contractual obligation of the Company, any Subsidiary Guarantor and any other obligor upon the Notes, whether or not the mutilated, destroyed, lost or wrongfully taken Note shall be at any time enforceable by anyone, and shall be entitled to all benefits of this Indenture equally and proportionately with any and all other Notes duly issued hereunder.

The provisions of this Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or wrongfully taken Notes.

SECTION 2.8. Outstanding Notes. Notes outstanding at any time are all Notes authenticated by the Trustee except for those canceled by it, those paid pursuant to Section 2.7, those delivered to it for cancellation and those described in this Section as not outstanding. A Note does not cease to be outstanding in the event the Company or an Affiliate of the Company holds the Note except that the Company or an Affiliate of the Company shallnot obtain voting rights with respect to such Note.

If a Note is replaced pursuant toSection 2.7, it ceases to be outstanding unless the Trustee and the Company receive proof satisfactory to them that the replaced Note is held by abona fide purchaser.

If the Paying Agent holds in trust (or, if the Company or a Wholly Owned Subsidiary that is a Domestic Subsidiary is the Paying Agent, such Person has segregated and holds in trust as provided in Section 2.4), in accordance with this Indenture, on a maturity date money sufficient to pay all principal and interest payable on that date with respect to the Notes maturing and the Paying Agent is not prohibited from paying such money to the Holders on that date pursuant to the terms of this Indenture, then on and after that date such Notes cease to be outstanding and interest on them ceases to accrue.

SECTION 2.9. Temporary Notes. In the event that Definitive Notes are to be issued under the terms of this Indenture, until such Definitive Notes are ready for delivery, the Company may prepare and the Trustee shall authenticate temporary Notes. Temporary Notes shall be substantially in the form of Definitive Notes but may have variations that the Company considers appropriate for temporary Notes. Without unreasonable delay, the Company shall prepare and the Trustee shall authenticate

Definitive Notes. After the preparation of Definitive Notes, the temporary Notes shall be exchangeable for Definitive Notes upon surrender of the temporary Notes at any office or agency maintained by the Company for that purpose and such exchange shall be without charge to the Holder. Upon surrender for cancellation of any one or more temporary Notes, the Company shall execute, and the Trustee shall authenticate and make available for delivery in exchange therefor, one or more Definitive Notes representing an equal principal amount of Notes. Until so exchanged, the Holder of temporary Notes shall in all respects be entitled to the same benefits under this Indenture as a Holder of Definitive Notes.

SECTION 2.10. Cancellation. The Company at any time may deliver Notes to the Trustee for cancellation. The Registrar and the Paying Agent shall forward to the Trustee any Notes surrendered to them for registration of transfer, exchange or payment. The Trustee and no one else shall cancel and return to the Company all Notes surrendered for registration of transfer, exchange, payment or cancellation. The Company may not issue new Notes to replace Notes it has paid in full or delivered to the Trustee for cancellation.

At such time as all beneficial interests in a Global Note have either been exchanged for Definitive Notes, transferred in exchange for an interest in another Global Note, redeemed, repurchased or canceled, such Global Note shall be returned by the Depositary to the Trustee for cancellation or retained and canceled by the Trustee. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for Definitive Notes, transferred in exchange for an interest in another Global Note, redeemed, repurchased or canceled, the principal amount of Notes represented by such Global Note shall be reduced and an adjustment shall be made on the Global Note and on the books and records of the Trustee (if it is then the Notes Custodian for such Global Note) or the Notes Custodian with respect to such Global Note, by the Trustee or the Notes Custodian, to reflect such reduction.

SECTION 2.11. Payment of Interest; Defaulted Interest. Interest on any Note which is payable, and is punctually paid or duly provided for, on any interest payment date shall be paid to the Person in whose name such Note (or one or more predecessor Notes) is registered at the close of business on the regular record date for such interest payment date at the office or agency of the Company maintained for such purpose pursuant toSection 2.3. The regular record date shall be the 15th day of the month prior to an interest payment date.

Any interest on any Note which is payable, but is not paid when the same becomes due and payable and such nonpayment continues for a period of 30 days shall forthwith cease to be payable to the Holder on the regular record date by virtue of having been such Holder, and such defaulted interest and (to the extent lawful) interest on such defaulted interest at the rate borne by the Notes (such defaulted interest and interest thereon herein collectively called "Defaulted Interest") shall be paid by the Company, at its election in each case, as provided in clause (a) or (b) below:

(a) The Company may elect to make payment of any Defaulted Interest to the Persons in whose names the Notes (or their respective predecessor Notes) are registered at the close of business on a Special Record Date (as defined below) for the payment of such Defaulted Interest, which shall be fixed in the following manner. The Company shall notify the Trustee in writing of the amount of Defaulted Interest proposed to be paid on each Note and the date (not less than 30 days after such notice) of the proposed payment (the "Special Interest Payment Date"), and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount proposed to be paid in respect of such Defaulted Interest or shall make arrangements satisfactory to the Trustee for such deposit prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Interest as in this clause provided. Thereupon, the Trustee shall fix a record date (the "Special Record Date") for the payment of such Defaulted Interest, which shall be not more

than 15 days and not less than 10 days prior to the Special Interest Payment Date and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company of such Special Record Date, and in the name and at the expense of the Company, shall cause notice of the proposed payment of such Defaulted Interest and the Special Record Date and Special Interest Payment Date therefor to be given in the manner provided for inSection 11.2, not less than 10 days prior to such Special Record Date. Notice of the proposed payment of such Defaulted Interest and the Special Record Date and Special Interest Payment Date therefor having been so given, such Defaulted Interest shall be paid on the Special Interest Payment Date to the Persons in whose names the Notes (or their respective predecessor Notes) are registered at the close of business on such Special Record Date and shall no longer be payable pursuant to the following clause (b).

(b) The Company may make payment through the Paying Agent of any Defaulted Interest in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, if, after notice given by the Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee.

Subject to the foregoing provisions of this Section, each Note delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Note shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Note.

SECTION 2.12. Computation of Interest. Interest on the Notes shall be computed on the basis of a 360-day year comprised of twelve 30-day months.

SECTION 2.13. CUSIP Numbers. The Company in issuing the Notes may use "CUSIP" numbers (if then generally in use). The Trustee shall not be responsible for the use of CUSIP numbers. Neither the Company nor the Trustee makes any representation as to the correctness of CUSIP numbers as printed on any Note or notice to Holders and reliance may be placed only on the other identification numbers printed on the Notes, and any redemption or exchange shall not be affected by any defect in or omission of such CUSIP numbers. The Company shall promptly notify the Trustee in writing of any change in the CUSIP numbers.

ARTICLE III

Covenants

SECTION 3.1. Payment of Notes. The Company shall promptly pay the principal of and interest on the Notes on the dates and in the manner provided in the Notes and in this Indenture. Principal and interest shall be considered paid on the date due if on such date the Trustee or the Paying Agent holds in accordance with this Indenture money sufficient to pay all principal and interest then due and the Trustee or the Paying Agent, as the case may be, is not prohibited from paying such money to the Holders on that date pursuant to the terms of this Indenture.

The Company shall pay interest on overdue principal at the rate specified therefor in the Notes, and it shall pay interest on overdue installments of interest at the same rate to the extent lawful.

Notwithstanding anything to the contrary contained in this Indenture, the Company or the Paying Agent may, to the extent it is required to do so by law, deduct or withhold income or other similar taxes imposed by the United States of America from principal or interest payments hereunder.

SECTION 3.2. SEC Reports. Notwithstanding that the Company may not be subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, to the extent permitted by the Exchange Act, the Company will file with the SEC, and make available to the Trustee and the registered Holders, the annual reports and the information, documents and other reports (or copies of such portions of any of the foregoing as the SEC may by rules and regulations prescribe) that are specified in Sections 13 and 15(d) of the Exchange Act with respect to U.S. issuers within the time periods specified therein or in the relevant forms. In the event that the Company is not permitted to file such reports, documents and information with the SEC pursuant to the Exchange Act, the Company will nevertheless make available such Exchange Act information to the Trustee and the Holders as if the Company were subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act within the time periods specified therein or in the relevant forms. The Company shall also comply with the other provisions of TIA § 314(a).

If the Company has designated any of its Subsidiaries as Unrestricted Subsidiaries and the aggregate amount of net assets of all such Unrestricted Subsidiaries exceeds the greater of $10.0 million and 0.5% of Adjusted Consolidated Net Tangible Assets determined as of the filing date of any quarterly or annual report required by the immediately preceding paragraph, then the quarterly and annual financial information required by the immediately preceding paragraph shall include a reasonably detailed presentation, either on the face of the financial statements or in the footnotes to the financial statements and in Management's Discussion and Analysis of Results of Operations and Financial Condition, of the financial condition and results of operations of the Company and its Restricted Subsidiaries.

The Company and the Subsidiary Guarantors will make available to Holders and to prospective investors, upon the request of such Holders, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act at any time the Notes are not freely transferable under the Securities Act.

For purposes of thisSection 3.2, the Company and the Subsidiary Guarantors will be deemed to have furnished the reports to the Trustee and the Holders as required by thisSection 3.2 if they have filed such reports with the SEC via the SEC's Electronic Data Gathering, Analysis and Retrieval System and such reports are publicly available.

In the event that any direct or indirect parent company of the Company becomes a guarantor of the Notes, the Company may satisfy its obligations under thisSection 3.2 by furnishing financial information relating to such parent;provided that (a) such financial statements are accompanied by consolidating financial information for such parent, the Company, the Subsidiary Guarantors and the Subsidiaries of the Company that are not Subsidiary Guarantors in the manner prescribed by the SEC and (b) such parent is not engaged in any business in any material respect other than incidental to its ownership, directly or indirectly, of the Capital Stock of the Company.

SECTION 3.3. Limitation on Indebtedness. (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, Incur any Indebtedness (including, without limitation, Acquired Indebtedness);provided, however, that any of the Company and the Subsidiary Guarantors may Incur Indebtedness if on the date thereof:

(1) the Consolidated Coverage Ratio for the Company and its Restricted Subsidiaries is at least 2.25 to 1.00; and

(2) no Default or Event of Default will have occurred or be continuing or would occur as a consequence of Incurring the Indebtedness or transactions relating to such Incurrence.

(b) Clause (a) of thisSection 3.3 will not prohibit the Incurrence of the following Indebtedness:

(1) Indebtedness of any of the Company and the Subsidiary Guarantors at any time outstanding pursuant to a Credit Facility in an aggregate principal amount up to the greater of (a) $1.0 billion and (b) 30% of Adjusted Consolidated Net Tangible Assets determined as of the date of the Incurrence of such Indebtedness;

(2) Guarantees by (a) any of the Company and the Subsidiary Guarantors of Indebtedness Incurred by the Company or any Subsidiary Guarantor in accordance with the provisions of this Indenture;provided that in the event such Indebtedness that is being Guaranteed is a Subordinated Obligation or a Guarantor Subordinated Obligation, then the related Guarantee shall be subordinated in right of payment to the Notes or the Subsidiary Guarantee, as the case may be, and (b) Non-Guarantor Restricted Subsidiaries of Indebtedness Incurred by Non-Guarantor Restricted Subsidiaries in accordance with the provisions of this Indenture;

(3) Indebtedness of the Company owing to and held by any Restricted Subsidiary or Indebtedness of a Restricted Subsidiary owing to and held by the Company or any other Restricted Subsidiary;provided, however,

(a) if the Company is the obligor on such Indebtedness and such Indebtedness is owing to and held by a Restricted Subsidiary that is not a Subsidiary Guarantor, such Indebtedness is expressly subordinated to the prior payment in full in cash of all obligations with respect to the Notes;

(b) if a Subsidiary Guarantor is the obligor on such Indebtedness and the Company or a Subsidiary Guarantor is not the obligee, such Indebtedness is subordinated in right of payment to the Subsidiary Guarantees of such Subsidiary Guarantor; and

(c) (i) any subsequent issuance or transfer of Capital Stock or any other event which results in any such Indebtedness being beneficially held by a Person other than the Company or a Restricted Subsidiary of the Company; and (ii) any sale or other transfer of any such Indebtedness to a Person other than the Company or a Restricted Subsidiary of the Company; shall be deemed, in each case, to constitute an Incurrence of such Indebtedness by the Company or such Subsidiary, as the case may be;

(4) Indebtedness represented by (a) the Notes issued on the Issue Date and the Subsidiary Guarantees, (b) any Indebtedness (other than the Indebtedness described in clauses (1), (2), (3), (9) and (10) of this Section 3.3(b)) outstanding on the Issue Date and (c) any Refinancing Indebtedness Incurred in respect of any Indebtedness described in this clause (4) or clause (5) of this Section 3.3(b) or Incurred pursuant toSection 3.3(a);

(5) Indebtedness of a Restricted Subsidiary Incurred and outstanding on the date on which such Restricted Subsidiary was acquired by, or merged into, the Company or any Restricted Subsidiary (other than Indebtedness Incurred (a) to provide all or any portion of the funds utilized to consummate the transaction or series of related transactions pursuant to which such Restricted Subsidiary became a Restricted Subsidiary or was otherwise acquired by the Company or (b) otherwise in connection with, or in contemplation of, such acquisition);provided, however, that at the time such Restricted Subsidiary is acquired by the Company, the Company would have been able to Incur $1.00 of additional Indebtedness pursuant toSection 3.3(a) after giving effect to the Incurrence of such Indebtedness pursuant to this clause (5);

(6) Indebtedness under Hedging Obligations that are Incurred in the ordinary course of business (a) for the purpose of fixing or hedging interest rate risk with respect to any Indebtedness Incurred in accordance with this Indenture; (b) for the purpose of fixing or hedging currency

exchange rate risk with respect to any currency exchanges; or (c) for the purpose of fixing or hedging commodity price risk with respect to any commodities;

(7) the Incurrence by any of the Company and the Restricted Subsidiaries of Indebtedness represented by Capitalized Lease Obligations, mortgage financings, purchase money obligations or other payments, in each case Incurred to finance all or any part of the purchase price or cost of acquisition, construction, improvement or development of assets or property (other than Capital Stock or other Investments) acquired, constructed, improved or developed in the ordinary course of business of the Company or such Restricted Subsidiary, and Attributable Indebtedness, in an aggregate principal amount, including all Refinancing Indebtedness Incurred to refund, defease, renew, extend, refinance or replace any Indebtedness Incurred pursuant to this clause (7), not to exceed $20.0 million at any time outstanding;

(8) Indebtedness Incurred in respect of workers' compensation claims, self-insurance obligations, bid, performance, surety, appeal and similar bonds, bankers' acceptances, completion guarantees, and similar instruments provided by the Company or a Restricted Subsidiary in the ordinary course of business;

(9) Indebtedness arising from agreements of any of the Company and the Restricted Subsidiaries providing for indemnification, adjustment of purchase price or similar obligations, earn-outs or similar obligations, in each case, Incurred or assumed in connection with the disposition of any business, properties or assets of the Company or any Restricted Subsidiary or Capital Stock of a Restricted Subsidiary,provided that the maximum aggregate liability in respect of all such Indebtedness shall at no time exceed the gross proceeds actually received by the Company and its Restricted Subsidiaries in connection with such disposition;

(10) Indebtedness arising from the honoring by a bank or other financial institution of a check, draft or similar instrument (except in the case of daylight overdrafts) drawn against insufficient funds in the ordinary course of business,provided,however, that such Indebtedness is extinguished within five Business Days of Incurrence;

(11) Indebtedness relating to Hydrocarbon balancing positions arising in the ordinary course of business;

(12) Indebtedness of any of the Company and the Restricted Subsidiaries to the extent the net proceeds thereof are promptly (a) used to redeem all of the Notes or (b) deposited to defease or satisfy the Notes as described inSection 8.1 orSection 8.2; and

(13) in addition to the items referred to in clauses (1) through (12) above, Indebtedness of any of the Company and the Restricted Subsidiaries in an aggregate outstanding principal amount (or accreted value, as the case may be) which, when taken together with the principal amount of all other Indebtedness Incurred pursuant to this clause (13) and then outstanding, will not exceed $50.0 million at any time outstanding.

(c) The Company will not Incur any Indebtedness pursuant toSection 3.3(b) if the proceeds thereof are used, directly or indirectly, to refinance any Subordinated Obligations of the Company unless such Indebtedness will be subordinated to the Notes to at least the same extent as such Subordinated Obligations. No Subsidiary Guarantor will Incur any Indebtedness pursuant toSection 3.3(b) if the proceeds thereof are used, directly or indirectly, to refinance any Guarantor Subordinated Obligations of such Subsidiary Guarantor unless such Indebtedness will be subordinated to the obligations of such Subsidiary Guarantor under its Subsidiary Guarantee to at least the same extent as such Guarantor Subordinated Obligations. No Restricted Subsidiary (other than a Subsidiary Guarantor) may Incur any Indebtedness if the proceeds are used to refinance Indebtedness of the Company or a Subsidiary Guarantor.

(d) For purposes of determining compliance with, and the outstanding principal amount of any particular Indebtedness Incurred pursuant to and in compliance with, thisSection 3.3:

(1) subject to clause (2) below, in the event that Indebtedness meets the criteria of more than one of the types of Indebtedness described inSections 3.3(a) and 3.3(b), the Company, in its sole discretion, will classify or reclassify such item of Indebtedness in any manner that complies with thisSection 3.3 and only be required to include the amount and type of such Indebtedness in one of such clauses or paragraphs;

(2) all Indebtedness outstanding on the Issue Date under the Senior Secured Credit Agreement shall be deemed Incurred under clause (1) ofSection 3.3(b) and notSection 3.3(a) or clause (4) ofSection 3.3(b);

(3) Guarantees of, or obligations in respect of letters of credit relating to, Indebtedness which is otherwise included in the determination of a particular amount of Indebtedness shall not be included;

(4) if obligations in respect of letters of credit are Incurred pursuant to a Credit Facility and are being treated as Incurred pursuant to clause (1) ofSection 3.3(b) and the letters of credit relate to other Indebtedness, then such other Indebtedness shall not be included;

(5) the principal amount of any Disqualified Stock of the Company or a Restricted Subsidiary, or Preferred Stock of a Restricted Subsidiary that is not a Subsidiary Guarantor, will be equal to the greater of the maximum mandatory redemption or repurchase price (not including, in either case, any redemption or repurchase premium) or the liquidation preference thereof;

(6) Indebtedness permitted by thisSection 3.3 need not be permitted solely by reference to one provision permitting such Indebtedness but may be permitted in part by one such provision and in part by one or more other provisions of thisSection 3.3 permitting such Indebtedness;

(7) the principal amount of any Indebtedness outstanding in connection with a securitization transaction or series of transactions is the amount of obligations outstanding under the legal documents entered into as part of such transaction that would be characterized as principal if such transaction were structured as a secured lending transaction rather than as a purchase relating to such transaction; and

(8) the amount of Indebtedness issued at a price that is less than the principal amount thereof shall be equal to the amount of the liability in respect thereof determined in accordance with GAAP.

(e) Accrual of interest, accrual of dividends, the accretion of accreted value, the payment of interest in the form of additional Indebtedness and the payment of dividends in the form of additional shares of Preferred Stock or Disqualified Stock will not be deemed to be an Incurrence of Indebtedness for purposes of thisSection 3.3. The amount of any Indebtedness outstanding as of any date shall be (i) the accreted value thereof in the case of any Indebtedness issued with original issue discount and (ii) the principal amount or liquidation preference thereof, together with any interest thereon that is more than 30 days past due, in the case of any other Indebtedness.

(f) In addition, the Company will not permit any of its Unrestricted Subsidiaries to Incur any Indebtedness or issue any shares of Disqualified Stock, other than Non-Recourse Debt. If at any time an Unrestricted Subsidiary becomes a Restricted Subsidiary, any Indebtedness of such Subsidiary shall be deemed to be Incurred by a Restricted Subsidiary as of such date (and, if such Indebtedness is not permitted to be Incurred as of such date under thisSection 3.3, the Company shall be in Default of thisSection 3.3).

(g) For purposes of determining compliance with any U.S. dollar-denominated restriction on the Incurrence of Indebtedness, the U.S. dollar-equivalent principal amount of Indebtedness denominated in a foreign currency shall be calculated based on the relevant currency exchange rate in effect on the date such Indebtedness was Incurred, in the case of term Indebtedness, or first committed, in the case of revolving credit Indebtedness;provided that if such Indebtedness is Incurred to refinance other Indebtedness denominated in a foreign currency, and such refinancing would cause the applicable U.S. dollar-dominated restriction to be exceeded if calculated at the relevant currency exchange rate in effect on the date of such refinancing, such U.S. dollar-dominated restriction shall be deemed not to have been exceeded so long as the principal amount of such refinancing Indebtedness does not exceed the principal amount of such Indebtedness being refinanced, plus, without duplication, any additional Indebtedness Incurred to pay interest or premiums required by the instruments governing the Indebtedness being refinanced and fees and expenses Incurred in connection therewith. Notwithstanding any other provision of thisSection 3.3, the maximum amount of Indebtedness that the Company may Incur pursuant to thisSection 3.3 shall not be deemed to be exceeded solely as a result of fluctuations in the exchange rate of currencies. The principal amount of any Indebtedness Incurred to refinance other Indebtedness, if Incurred in a different currency from the Indebtedness being refinanced, shall be calculated based on the currency exchange rate applicable to the currencies in which such Refinancing Indebtedness is denominated that is in effect on the date of such refinancing.

SECTION 3.4. Limitation on Restricted Payments. (a) The Company will not, and will not permit any of its Restricted Subsidiaries, directly or indirectly, to:

(1) declare or pay any dividend or make any distribution (whether made in cash, securities or other property) on or in respect of its Capital Stock (including, without limitation, any payment thereof in connection with any merger or consolidation involving the Company or any of its Restricted Subsidiaries) except:

(a) dividends or distributions payable in Capital Stock of the Company (other than Disqualified Stock) or in options, warrants or other rights to purchase such Capital Stock of the Company; and

(b) dividends or distributions payable to the Company or another Restricted Subsidiary (and if such Restricted Subsidiary is not a Wholly Owned Subsidiary, to its other holders of the applicable class or classes of Capital Stock on a pro rata basis);

(2) purchase, redeem, retire or otherwise acquire for value any Capital Stock of the Company or any direct or indirect parent of the Company held by Persons other than the Company or a Restricted Subsidiary (other than in exchange for Capital Stock of the Company (other than Disqualified Stock));

(3) purchase, repurchase, redeem, defease or otherwise acquire or retire for value, prior to scheduled maturity, scheduled repayment or scheduled sinking fund payment, any Subordinated Obligations or Guarantor Subordinated Obligations (other than (a) Indebtedness of the Company owing to and held by any Subsidiary Guarantor or Indebtedness of a Subsidiary Guarantor owing to and held by the Company or any other Subsidiary Guarantor permitted pursuant toSection 3.3(b)(3) or (b) the purchase, repurchase, redemption, defeasance or other acquisition or retirement of Subordinated Obligations or Guarantor Subordinated Obligations purchased in anticipation of satisfying a sinking fund obligation, principal installment or final maturity, in each case due within one year of the date of purchase, repurchase, redemption, defeasance or other acquisition or retirement); or

(4) make any Restricted Investment in any Person;

(any such dividend, distribution, purchase, redemption, repurchase, defeasance, other acquisition, retirement or Restricted Investment referred to in clauses (1) through (4) shall be referred to herein as

a "Restricted Payment"), if at the time the Company or such Restricted Subsidiary makes such Restricted Payment:

(I) a Default shall have occurred and be continuing (or would result therefrom); or

(II) the Company is not able to Incur $1.00 of additional Indebtedness pursuant toSection 3.3(a) after giving effect, on a pro forma basis, to such Restricted Payment; or

(III) the aggregate amount of such Restricted Payment and all other Restricted Payments declared or made subsequent to the Issue Date would exceed the sum of:

(i) 50% of Consolidated Net Income for the period (treated as one accounting period) from the beginning of the fiscal quarter in which the Issue Date occurs to the end of the most recent fiscal quarter ending prior to the date of such Restricted Payment for which financial statements are in existence (or, in case such Consolidated Net Income is a deficit, minus 100% of such deficit);

(ii) 100% of the aggregate Net Cash Proceeds, or the fair market value of property other than cash, received by the Company from the issue or sale of its Capital Stock (other than Disqualified Stock) or other capital contributions subsequent to the Issue Date (other than Net Cash Proceeds or property received from an issuance or sale of such Capital Stock to a Subsidiary of the Company or an employee stock ownership plan, option plan or similar trust to the extent such sale to an employee stock ownership plan, option plan or similar trust is financed by loans from or Guaranteed by the Company or any Restricted Subsidiary unless such loans have been repaid with cash on or prior to the date of determination) excluding in any event Net Cash Proceeds received by the Company from the issue and sale of its Capital Stock or capital contributions to the extent applied to redeem Notes in compliance with the provisions set forth underSection 5.1;

(iii) the amount by which Indebtedness of the Company or its Restricted Subsidiaries is reduced on the Company's consolidated balance sheet upon the conversion or exchange (other than by a Subsidiary of the Company) subsequent to the Issue Date of any Indebtedness of the Company or its Restricted Subsidiaries convertible or exchangeable for Capital Stock (other than Disqualified Stock) of the Company (less the amount of any cash, or the fair market value of any other property, distributed by the Company upon such conversion or exchange);

(iv) the amount equal to the net reduction in Restricted Investments made by the Company or any of its Restricted Subsidiaries in any Person resulting from:

(A) repurchases, repayments or redemptions of such Restricted Investments by such Person, proceeds realized upon the sale of such Restricted Investment to an unaffiliated purchaser, repayments of loans or advances or other transfers of cash or assets (including, without limitation, by way of dividend or distribution) by such Person to the Company or any Restricted Subsidiary (other than for reimbursement of tax payments); or

(B) the redesignation of Unrestricted Subsidiaries as Restricted Subsidiaries (valued, in each case, as provided in the definition of "Investment") not to exceed, in the case of any Unrestricted Subsidiary, the amount of Investments previously made by the Company or any Restricted Subsidiary in such Unrestricted Subsidiary,

which amount in each case under this clause (iv) was included in the calculation of the amount of Restricted Payments;provided, however, that no amount will be included under this clause (iv) to the extent it is already included in Consolidated Net Income; and

(v) any amount that previously qualified as a Restricted Payment on account of any Guarantee entered into by the Company or any Restricted Subsidiary;provided, that the obligation arising under such Guarantee no longer exists (and excluding any amount actually paid by the Company or any Restricted Subsidiary to satisfy its obligations under such Guarantee); and

(b) The provisions ofSection 3.4(a) will not prohibit:

(1) any Restricted Payment (other than a Restricted Payment described in clause (1) of the definition of "Restricted Payment") made by exchange for, or out of the proceeds of the substantially concurrent sale of, Capital Stock of the Company (other than Disqualified Stock and other than Capital Stock issued or sold to a Subsidiary or an employee stock ownership plan or similar trust to the extent such sale to an employee stock ownership plan or similar trust is financed by loans from or Guaranteed by the Company or any Restricted Subsidiary unless such loans have been repaid with cash on or prior to the date of determination);provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;provided, further, that the Net Cash Proceeds or property other than cash received from such sale of Capital Stock to the extent such proceeds are used to make such Restricted Payments will be excluded fromSection 3.4(a)(III)(ii);

(2) any principal payment on, purchase, repurchase, redemption, defeasance or other acquisition or retirement of Subordinated Obligations of the Company or Guarantor Subordinated Obligations of any Subsidiary Guarantor made by exchange for, or out of the proceeds of the substantially concurrent sale of, Subordinated Obligations of the Company or any principal payment on, purchase, repurchase, redemption, defeasance or other acquisition or retirement of Guarantor Subordinated Obligations made by exchange for or out of the proceeds of the substantially concurrent sale of Guarantor Subordinated Obligations that, in each case, is permitted to be Incurred pursuant toSection 3.3 and that in each case constitutes Refinancing Indebtedness;provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(3) any principal payment on, purchase, repurchase, redemption, defeasance or other acquisition or retirement of Disqualified Stock of the Company or a Restricted Subsidiary made by exchange for or out of the proceeds of the substantially concurrent sale of Disqualified Stock of the Company or such Restricted Subsidiary, as the case may be, that, in each case, is permitted to be Incurred pursuant toSection 3.3 and that in each case constitutes Refinancing Indebtedness;provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(4) so long as no Default or Event of Default has occurred and is continuing, any purchase or redemption of Subordinated Obligations or Guarantor Subordinated Obligations of a Subsidiary Guarantor from Net Available Cash to the extent permitted underSection 3.8;provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(5) dividends paid within 60 days after the date of declaration if at such date of declaration such dividend would have complied with this provision;provided, however, that the amount of such Restricted Payments will be included in subsequent calculations of the amount of Restricted Payments;

(6) so long as no Default or Event of Default has occurred and is continuing,

(a) the purchase, redemption or other acquisition, cancellation or retirement for value of Capital Stock, or options, warrants or other rights to purchase or acquire Capital Stock of the Company or any Restricted Subsidiary or any direct or indirect parent of the Company held

by any existing or former officers, directors, employees, management or consultants of the Company or any Subsidiary of the Company or their assigns, estates or heirs, in each case in connection with the repurchase provisions under employee stock option or stock purchase agreements or other agreements to compensate officers, directors, employees, management or consultants;provided that such Capital Stock, or options, warrants or other rights to purchase or acquire Capital Stock, were received for services related to, or for the benefit of, the Company and its Restricted Subsidiaries; andprovided further that such redemptions or repurchases pursuant to this clause will not exceed $2.0 million in the aggregate during any calendar year (with unused amounts in any calendar year being carried over to the succeeding calendar years) and $5.0 million in the aggregate for all such redemptions and repurchases, plus the amount of any capital contributions to the Company as a result of sales of Capital Stock, or options, warrants or other rights to purchase or acquire Capital Stock, of the Company or any direct or indirect parent of the Company to such persons, plus the cash proceeds of key man life insurance policies received by the Company and its Restricted Subsidiaries after the Issue Date (provided, however, that the Net Cash Proceeds from such sale of Capital Stock to the extent such proceeds are used to make such Restricted Payments will be excluded fromSection 3.4(a)(III)(ii), andprovided,further,however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments); and

(b) loans or advances to employees, officers, directors, management or consultants of the Company or any Subsidiary of the Company the proceeds of which are used to purchase Capital Stock of the Company, in an aggregate amount not in excess of $2.0 million with respect to all loans or advances made since the Issue Date (without giving effect to the forgiveness of any such loan);provided,however, that the amount of such Restricted Payments will be included in subsequent calculations of the amount of Restricted Payments;

(7) so long as no Default or Event of Default has occurred and is continuing, the declaration and payment of dividends to holders of any class or series of Disqualified Stock of the Company issued in accordance with the terms of this Indenture to the extent such dividends are included in the definition of "Consolidated Interest Expense;"provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(8) repurchases of Capital Stock deemed to occur upon the exercise of stock options, warrants or other convertible securities if such Capital Stock represents a portion of the exercise price thereof;provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(9) the purchase, repurchase, redemption, defeasance or other acquisition or retirement for value of any Subordinated Obligation or Guarantor Subordinated Obligation (a) at a purchase price not greater than 101% of the principal amount of such Subordinated Obligation or Guarantor Subordinated Obligation in the event of a Change of Control in accordance with provisions similar toSection 3.10 or (b) at a purchase price not greater than 100% of the principal amount thereof in accordance with provisions similar toSection 3.8;provided that, prior to or simultaneously with such purchase, repurchase, redemption, defeasance or other acquisition or retirement, the Company has made the Change of Control Offer or Asset Disposition Offer, as applicable, as provided in such covenant with respect to the Notes and has completed the repurchase or redemption of all Notes validly tendered for payment in connection with such Change of Control Offer or Asset Disposition Offer;provided, however, that the amount of such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(10) so long as no Default or Event of Default has occurred and is continuing, the payment of dividends on the Company's Common Stock of an amount per annum not to exceed $0.20 per share (but in no event in excess of $20.0 million in the aggregate during any calendar year pursuant to this clause (10));provided, however, that the amount of such Restricted Payments will be included in subsequent calculations of Restricted Payments;

(11) the payment of cash in lieu of fractional shares of Capital Stock in connection with any transaction that is not prohibited by this Indenture (including, without limitation, in connection with the conversion of convertible Indebtedness into Capital Stock);provided, however, that such Restricted Payments will be excluded in subsequent calculations of the amount of Restricted Payments;

(12) payments to dissenting stockholders not to exceed $5.0 million in the aggregate after the Issue Date (x) pursuant to applicable law or (y) in connection with the settlement or other satisfaction of claims made pursuant to or in connection with a consolidation, merger or transfer of assets in connection with a transaction that is not prohibited by this Indenture;provided,however, that such Restricted Payments will be included in subsequent calculations of the amount of Restricted Payments;

(13) so long as no Default or Event of Default has occurred and is continuing, any redemption of share purchase rights at a redemption price not to exceed $0.01 per right;provided, however, that such Restricted Payment will be included in subsequent calculations of the amount of Restricted Payments;

(14) so long as no Default or Event of Default has occurred and is continuing, the purchase, redemption or other acquisition, cancellation or retirement for value of Capital Stock, or options, warrants or other rights to purchase or acquire Capital Stock, of the Company pursuant to a stock repurchase program authorized by the Board of Directors of the Company for an aggregate amount not to exceed $200.0 million after the Issue Date;provided, however, that such Restricted Payments will be included in subsequent calculations of the amount of Restricted Payments; and

(15) Restricted Payments in an amount not to exceed $25.0 million;provided,however, that the amount of such Restricted Payments will be included in subsequent calculations of the amount of Restricted Payments.

The amount of all Restricted Payments (other than cash) shall be the fair market value on the date of such Restricted Payment of the asset(s) or securities proposed to be paid, transferred or issued by the Company or such Restricted Subsidiary, as the case may be, pursuant to such Restricted Payment.

SECTION 3.5. Limitation on Liens. The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create, Incur or suffer to exist any Lien (other than Permitted Liens) upon any of its property or assets (including, without limitation, Capital Stock of Subsidiaries), whether owned on the Issue Date or acquired after that date, which Lien is securing any Indebtedness, unless contemporaneously with the Incurrence of such Liens effective provision is made to secure the Indebtedness due under this Indenture and the Notes or, in respect of Liens on any Restricted Subsidiary's property or assets, any Subsidiary Guarantee of such Restricted Subsidiary, equally and ratably with (or senior in priority to in the case of Liens with respect to Subordinated Obligations or Guarantor Subordinated Obligations, as the case may be) the Indebtedness secured by such Lien for so long as such Indebtedness is so secured.

SECTION 3.6. Limitation on Sale/Leaseback Transactions. The Company will not, and will not permit any of its Restricted Subsidiaries to, enter into any Sale/Leaseback Transactionunless:

(1) the Company or such Restricted Subsidiary, as the case may be, receives consideration at the time of such Sale/Leaseback Transaction at least equal to the fair market value (as conclusively determined by the Board of Directors of the Company or such Restricted Subsidiary) of the property subject to such transaction;

(2) the Company or such Restricted Subsidiary could have Incurred Indebtedness at the time of such Sale/Leaseback Transaction in an amount equal to the Attributable Indebtedness in respect of such Sale/Leaseback Transaction pursuant toSection 3.3; and

(3) the Sale/Leaseback Transaction is treated as an Asset Disposition and all of the conditions of this Indenture described underSection 3.8 (including the provisions concerning the application of Net Available Cash) are satisfied with respect to such Sale/Leaseback Transaction, treating all of the consideration received in such Sale/Leaseback Transaction as Net Available Cash for purposes ofSection 3.8.

SECTION 3.7. Limitation on Restrictions on Distributions from Restricted Subsidiaries. (a) The Company will not, and will not permit any Restricted Subsidiary to, create or otherwise cause or permit to exist or become effective any consensual encumbrance or consensual restriction on the ability of any Restricted Subsidiary to:

(1) pay dividends or make any other distributions on its Capital Stock or pay any Indebtedness or other obligations owed to the Company or any Restricted Subsidiary (it being understood that the priority of any Preferred Stock in receiving dividends or liquidating distributions prior to dividends or liquidating distributions being paid on Common Stock and any subordination of such Indebtedness or other obligations shall be deemed not to be an encumbrance or restriction on the ability to pay dividends or make any other distributions on Capital Stock);

(2) make any loans or advances to the Company or any Restricted Subsidiary (it being understood that the subordination of loans or advances made to the Company or any Restricted Subsidiary to other Indebtedness Incurred by the Company or any Restricted Subsidiary shall be deemed not to be an encumbrance or restriction on the ability to make loans or advances); or

(3) transfer any of its property or assets to the Company or any Restricted Subsidiary.

(b) The provisions ofSection 3.7(a) will not prohibit:

(1) any encumbrance or restriction pursuant to an agreement or instrument in effect at or entered into on the Issue Date, including, without limitation, this Indenture, the Notes, the Subsidiary Guarantees, and the Senior Secured Credit Agreement (and��related documentation);

(2) any encumbrance or restriction with respect to a Restricted Subsidiary pursuant to any agreement or instrument that is in existence at the time such Person becomes a Restricted Subsidiary (and not Incurred in connection with, or in contemplation of, such Person becoming a Restricted Subsidiary);provided, that any such encumbrance or restriction shall not extend to any assets or property of the Company or any other Restricted Subsidiary other than the assets and property so acquired and that, in the case of Indebtedness, was permitted to be Incurred pursuant to this Indenture;

(3) any encumbrance or restriction pursuant to any agreement or instrument governing any Acquired Indebtedness or other agreement or instrument of any Person or related to property, assets or Capital Stock of a Person acquired by or merged into or consolidated with the Company or any Restricted Subsidiary;provided, that such encumbrance or restriction (i) was not entered into in contemplation of the acquisition, merger or consolidation transaction, and (ii) shall not extend to any assets or property of the Company or any other Restricted Subsidiary other than the assets and property so acquired and that, in the case of Indebtedness, was permitted to be Incurred pursuant to this Indenture;

(4) any encumbrance or restriction with respect to a Restricted Subsidiary pursuant to an agreement effecting a refunding, replacement or refinancing of Indebtedness Incurred pursuant to an agreement referred to in any of clauses (1), (2) or (3) of thisSection 3.7(b) or this clause (4)

or contained in any amendment, restatement, modification, renewal, restructuring, supplement, extension, substitution, refunding, replacement or refinancing of an agreement referred to in any of such clauses;provided, however, that, in the good faith reasonable determination of the Company, the encumbrances and restrictions with respect to such Restricted Subsidiary contained in any such agreement are no less favorable in any material respect, taken as a whole, to the Holders than the encumbrances and restrictions contained in such agreements referred to in clauses (1), (2) or (3) of thisSection 3.7(b) on the Issue Date or the date such Restricted Subsidiary became a Restricted Subsidiary or was merged into a Restricted Subsidiary, whichever is applicable;

(5) in the case ofSection 3.7(a)(3), any encumbrance or restriction:

(i) that restricts in a customary manner the subletting, assignment or transfer of any property or asset that is subject to a lease, license or similar contract, or the assignment or transfer of any lease, license or other contract;

(ii) contained in mortgages, pledges or other security agreements permitted under this Indenture securing Indebtedness of the Company or a Restricted Subsidiary to the extent such encumbrances or restrictions restrict the transfer of the property subject to such mortgages, pledges or other security agreements; or

(iii) pursuant to customary provisions restricting dispositions of real property interests set forth in any reciprocal easement agreements of the Company or any Restricted Subsidiary;

(6) (i) purchase money obligations for property acquired in the ordinary course of business and (ii) Capitalized Lease Obligations permitted under this Indenture, in each case, that impose encumbrances or restrictions of the nature described inSection 3.7(a)(3) on the property so acquired;

(7) any encumbrance or restriction with respect to a Restricted Subsidiary (or any of its property or assets) imposed pursuant to an agreement entered into for the direct or indirect sale or other disposition of the Capital Stock, property or assets of such Restricted Subsidiary (or the property or assets that are subject to such encumbrance or restriction) pending the closing of such sale or disposition;

(8) any customary encumbrances or restrictions imposed pursuant to any agreement referred to in the definition of "Permitted Business Investment";

(9) deposit arrangements or net worth provisions in leases and other agreements entered into by the Company or any Restricted Subsidiary in the ordinary course of business;

(10) in the case ofSection 3.7(a)(3), any encumbrance or restriction that is a Lien otherwise permitted to be Incurred pursuant toSection 3.5;

(11) any encumbrance or restriction in respect of a Sale/Leaseback Transaction permitted underSection 3.6; and

(12) encumbrances or restrictions arising or existing by reason of applicable law or any applicable rule, regulation or order.

SECTION 3.8. Limitation on Sales of Assets and Subsidiary Stock. (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, make any Asset Dispositionunless:

(1) the Company or such Restricted Subsidiary, as the case may be, receives consideration at least equal to the Fair Market Value, including as to the value of all non-cash consideration, as determined in good faith by the Company, of the shares and assets subject to such Asset Disposition;

(2) at least 75% of the consideration from such Asset Disposition received by the Company or such Restricted Subsidiary, as the case may be, is in the form of cash or Cash Equivalents; and

(3) an amount equal to 100% of the Net Available Cash from such Asset Disposition is applied by the Company or any one or more Restricted Subsidiaries:

(i) to the extent the Company or any Restricted Subsidiary, as the case may be, elects (or is required by the terms of any Indebtedness), to prepay, repay or purchase Indebtedness of the Company (other than any Disqualified Stock or Subordinated Obligations) or Indebtedness of a Wholly Owned Subsidiary (other than any Disqualified Stock or Guarantor Subordinated Obligations of a Wholly Owned Subsidiary that is a Subsidiary Guarantor) (in each case other than Indebtedness owed to the Company or an Affiliate of the Company) within 365 days from the later of the date of such Asset Disposition and the receipt of such Net Available Cash;provided, however, that, in connection with any prepayment, repayment or purchase of Indebtedness pursuant to this clause (a), the Company or such Restricted Subsidiary will retire such Indebtedness and will cause the related commitment (if any) to be permanently reduced in an amount equal to the principal amount so prepaid, repaid or purchased; and

(ii) to the extent the Company or any Restricted Subsidiary elects, to invest in Additional Assets within 365 days from the later of the date of such Asset Disposition and the receipt of such Net Available Cash;

provided that the Company and its Restricted Subsidiaries may make any combination of prepayment, repayment, purchase or investment permitted by clause (i) or clause (ii) above and, pending the final application of any such Net Available Cash in accordance with clause (i) or clause (ii) above or pursuant to an Asset Disposition Offer described below, the Company and its Restricted Subsidiaries may temporarily reduce Indebtedness or otherwise invest such Net Available Cash in any manner not prohibited by this Indenture.

(b) Any Net Available Cash from Asset Dispositions that are not applied or invested as provided inSection 3.8(a) will be deemed to constitute "Excess Proceeds." Within 30 days following the 365^th day after an Asset Disposition, if the aggregate amount of Excess Proceeds exceeds $25.0 million, the Company will be required to make an offer ("Asset Disposition Offer") to all Holders and to the extent required by the terms of other Pari Passu Indebtedness, to all holders of other Pari Passu Indebtedness outstanding with similar provisions requiring the Company to make an offer to purchase such Pari Passu Indebtedness with the proceeds from any Asset Disposition ("Pari Passu Notes"), to purchase the maximum principal amount of Notes and any such Pari Passu Notes to which the Asset Disposition Offer applies that may be purchased out of the Excess Proceeds, at an offer price in cash in an amount equal to 100% of the principal amount of the Notes and Pari Passu Notes plus accrued and unpaid interest to the date of purchase, in accordance with the procedures set forth in this Indenture or the agreements governing the Pari Passu Notes, as applicable, in each case in denominations of $2,000 and integral multiples of $1,000 in excess thereof. To the extent that the aggregate amount of Notes and Pari Passu Notes so validly tendered and not properly withdrawn pursuant to an Asset Disposition Offer is less than the Excess Proceeds, the Company may use any remaining Excess Proceeds for general corporate or other purposes, subject to other covenants contained in this Indenture. If the aggregate principal amount of Notes surrendered by Holders thereof and other Pari Passu Notes surrendered by holders or lenders, collectively, exceeds the amount of Excess Proceeds, the Trustee shall select the Notes and Pari Passu Notes to be purchased on a pro rata basis on the basis of the aggregate principal amount of tendered Notes and Pari Passu Notes. Upon completion of such Asset Disposition Offer, the amount of Excess Proceeds shall be reset at zero.

(c) The Asset Disposition Offer will remain open for a period of 20 Business Days following its commencement, except to the extent that a longer period is required by applicable law (the

"Asset Disposition Offer Period"). No later than five Business Days after the termination of the Asset Disposition Offer Period (the "Asset Disposition Purchase Date"), the Company will purchase the principal amount of Notes and Pari Passu Notes required to be purchased pursuant to thisSection 3.8 (the "Asset Disposition Offer Amount") or, if less than the Asset Disposition Offer Amount has been so validly tendered, all Notes and Pari Passu Notes validly tendered in response to the Asset Disposition Offer.

(d) If the Asset Disposition Purchase Date is on or after an interest record date and on or before the related interest payment date, any accrued and unpaid interest will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no additional interest will be payable to Holders who tender Notes pursuant to the Asset Disposition Offer.

(e) On or before the Asset Disposition Purchase Date, the Company will, to the extent lawful, accept for payment, on a pro rata basis to the extent necessary, the Asset Disposition Offer Amount of Notes and Pari Passu Notes or portions of Notes and Pari Passu Notes so validly tendered and not properly withdrawn pursuant to the Asset Disposition Offer, or if less than the Asset Disposition Offer Amount has been validly tendered and not properly withdrawn, all Notes and Pari Passu Notes so validly tendered and not properly withdrawn, in each case in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Company will deliver to the Trustee an Officers' Certificate stating that such Notes or portions thereof were accepted for payment by the Company in accordance with the terms of thisSection 3.8 and, in addition, the Company will deliver all certificates and notes required, if any, by the agreements governing the Pari Passu Notes. The Company or the Paying Agent, as the case may be, will promptly (but in any case not later than five Business Days after termination of the Asset Disposition Offer Period) mail or deliver to each tendering Holder or holder or lender of Pari Passu Notes, as the case may be, an amount equal to the purchase price of the Notes or Pari Passu Notes so validly tendered and not properly withdrawn by such holder or lender, as the case may be, and accepted by the Company for purchase, and the Company will promptly issue a new Note, and the Trustee, upon delivery of an Officers' Certificate from the Company, will authenticate and mail or deliver such new Note to such holder, in a principal amount equal to any unpurchased portion of the Note surrendered;provided that each such new Note will be in a principal amount of $2,000 or an integral multiple of $1,000 in excess thereof. In addition, the Company will take any and all other actions required by the agreements governing the Pari Passu Notes in connection with the Asset Disposition Offer. Any Note not so accepted will be promptly mailed or delivered by the Company to the holder thereof. The Company will publicly announce the results of the Asset Disposition Offer on or before the Asset Disposition Purchase Date.

(f) For the purposes of thisSection 3.8, the following shall be deemed to be cash: (1) the assumption by the transferee of Indebtedness (other than Subordinated Obligations or Disqualified Stock) of the Company or Indebtedness of a Wholly Owned Subsidiary (other than Guarantor Subordinated Obligations or Disqualified Stock of any Wholly Owned Subsidiary that is a Subsidiary Guarantor) and the release of the Company or such Restricted Subsidiary from all liability on such Indebtedness in connection with such Asset Disposition (in which case the Company will, without further action, be deemed to have applied such deemed cash to Indebtedness in accordance withSection 3.8(a)(3)(i)); and (2) securities, notes or other obligations received by the Company or any Restricted Subsidiary from the transferee that, within 180 days of receipt thereof, are converted, sold or exchanged by the Company or such Restricted Subsidiary into or for cash.

(g) The Company will comply, to the extent applicable, with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws or regulations in connection with the repurchase of Notes pursuant to thisSection 3.8. To the extent that the provisions of any securities laws or regulations conflict with provisions of thisSection 3.8, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under this Indenture by virtue of any conflict.

SECTION 3.9. Limitation on Affiliate Transactions. (a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, enter into any transaction (including, without limitation, the purchase, sale, lease or exchange of any property or the rendering of any service) with any Affiliate of the Company (an "Affiliate Transaction")unless:

(1) the terms of such Affiliate Transaction are not materially less favorable to the Company or such Restricted Subsidiary, as the case may be, than those that could be obtained in a comparable transaction at the time of such transaction in arm's-length dealings with a Person who is not such an Affiliate;

(2) in the event such Affiliate Transaction involves an aggregate consideration to the Affiliate of the Company with a value in excess of $10.0 million, the terms of such transaction have been approved by a majority of the members of the Board of Directors of the Company and by a majority of the members of such Board having no personal stake in such transaction, if any (and such majority or majorities, as the case may be, determines that such Affiliate Transaction satisfies the criteria in Section 3.9(a)(1)); and

(3) in the event such Affiliate Transaction involves an aggregate consideration to the Affiliate of the Company with a value in excess of $25.0 million, the Company has received a written opinion from an independent investment banking, engineering, consulting, accounting or appraisal firm of nationally recognized standing, or other recognized firm or expert that in the judgment of the Board of Directors of the Company is independent and qualified to render such opinion, either (i) that such Affiliate Transaction is fair, from a financial point of view, to the Company or the applicable Restricted Subsidiary, as the case may be, or (ii) that the terms of such Affiliate Transaction are not materially less favorable to the Company or the applicable Restricted Subsidiary, as the case may be, than those that might reasonably have been obtained in a comparable transaction at such time on an arm's length basis from a Person that is not an Affiliate.

(b) The provisions ofSection 3.9(a) will not apply to:

(1) any Restricted Payment (other than a Restricted Investment) permitted to be made pursuant toSection 3.4;

(2) any issuance of securities, or other payments, awards or grants in cash, securities or otherwise pursuant to, or the funding of, employment agreements and other compensation arrangements, options to purchase Capital Stock of the Company, restricted stock plans, long-term incentive plans, stock appreciation rights plans, participation plans or other employee benefits plans and/or insurance and indemnification arrangements approved by the Board of Directors of the Company or the applicable Restricted Subsidiary provided to or for the benefit of directors, officers, employees, managers or consultants who are Affiliates of the Company;

(3) loans or advances to employees, officers, directors, managers and consultants who are Affiliates of the Company in the ordinary course of business of the Company or any Restricted Subsidiary, in an aggregate principal amount not in excess of $2.0 million with respect to all loans or advances made since the Issue Date (without giving effect to the forgiveness of any such loan);

(4) any transaction between the Company and a Restricted Subsidiary or between Restricted Subsidiaries and Guarantees issued by the Company or a Restricted Subsidiary for the benefit of the Company or a Restricted Subsidiary, as the case may be, in accordance withSection 3.3;

(5) any transaction with a joint venture, partnership, limited liability company or other entity that would constitute an Affiliate Transaction solely because the Company or a Restricted Subsidiary owns an equity interest in such joint venture, partnership, limited liability company or other entity;

(6) the payment of reasonable and customary fees paid to, and indemnity provided on behalf of, directors of the Company or any Restricted Subsidiary;

(7) the existence of, and the performance of obligations of the Company or any of its Restricted Subsidiaries under the terms of, any agreement to which the Company or any of its Restricted Subsidiaries is a party as of or on the Issue Date, as these agreements may be amended, modified, supplemented, extended or renewed from time to time;provided, however, that any future amendment, modification, supplement, extension or renewal entered into after the Issue Date will be permitted to the extent that its terms are not more disadvantageous to the Holders than the terms of the agreements in effect on the Issue Date;

(8) transactions with customers, clients, suppliers or purchasers or sellers of goods or services that are Affiliates of the Company, in each case in the ordinary course of the business of the Company and its Restricted Subsidiaries and otherwise in compliance with the terms of this Indenture;provided that in the good faith reasonable determination of the Company, such transactions are on terms that are not materially less favorable, taken as a whole, to the Company or the relevant Restricted Subsidiary, as the case may be, than those that would have been obtained in a comparable transaction at such time by the Company or such Restricted Subsidiary from a Person that is not an Affiliate;

(9) any issuance or sale of Capital Stock or debt securities made to an Affiliate of the Company on the same terms as are being made to the non-Affiliate investors in any public or private issuance or sale of such Capital Stock or debt securities;provided, that any such issuance or sale complies with the requirements ofSection 3.9(a)(1); and

(10) any issuance or sale of Capital Stock (other than Disqualified Stock) to Affiliates of the Company and the granting of registration and other customary rights in connection therewith.

SECTION 3.10. Change of Control. (a) If a Change of Control occurs, unless the Company has exercised its right to redeem all of the Notes as described underSection 5.1, each Holder will have the right to require the Company to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of such Holder's Notes at a purchase price in cash equal to 101% of the principal amount of such Notes plus accrued and unpaid interest, if any, to the date of purchase (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date).

(b) Within 30 days following any Change of Control, unless the Company has exercised its right to redeem all of the Notes as described underSection 5.1, or at the Company's option, prior to such Change of Control but after it is publicly announced, the Company will mail a notice (the "Change of Control Offer") to each Holder, with a copy to the Trustee, stating:

(1) that a Change of Control has occurred or will occur and that such Holder has the right to require the Company to purchase such Holder's Notes at a purchase price in cash equal to 101% of the principal amount of such Notes plus accrued and unpaid interest, if any, to the date of purchase (subject to the right of Holders of record on a record date to receive interest on the relevant interest payment date) (the "Change of Control Payment");

(2) the repurchase date (which shall be no earlier than 30 days nor later than 60 days from the date such notice is mailed, or such later date as is necessary to comply with the requirements under the Exchange Act) (the "Change of Control Payment Date");provided that the Change of Control Payment Date may not occur prior to the Change of Control; and

(3) the procedures determined by the Company, consistent with this Indenture, that a Holder must follow in order to have its Notes repurchased.

(1) accept for payment all Notes or portions of Notes (of $2,000 or an integral multiple of $1,000 in excess thereof) properly tendered and not withdrawn pursuant to the Change of Control Offer;

(2) deposit, to the extent not previously deposited for such purpose, with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes so tendered; and

(3) deliver or cause to be delivered to the Trustee the Notes, to the extent not previously delivered for such purpose, so accepted and an Officers' Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased by the Company.

(d) The Paying Agent will promptly mail to each Holder so tendered the Change of Control Payment for such Notes, and the Trustee will promptly authenticate and mail or deliver (or cause to be transferred by book entry) to each Holder a new Note equal in principal amount to any unpurchased portion of the Notes surrendered, if any;provided that each such new Note will be in a principal amount of $2,000 or an integral multiple of $1,000 in excess thereof. The Paying Agent will deliver the Change of Control Payment for such Notes in global form registered in the name of or held by The Depository Trust Company or its nominee in immediately available funds to The Depository Trust Company or its nominee, as the case may be, as the registered Holder of such global Note.

(e) If the Change of Control Payment Date is on or after an interest record date and on or before the related interest payment date, any accrued and unpaid interest, if any, will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no additional interest will be payable to Holders who tender pursuant to the Change of Control Offer.

(f) The Change of Control provisions described in thisSection 3.10 will be applicable whether or not any other provisions of this Indenture are applicable.

(g) The Company will not be required to make a Change of Control Offer upon a Change of Control if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Indenture applicable to a Change of Control Offer made by the Company and purchases all Notes validly tendered and not withdrawn under such Change of Control Offer.

(h) The Company will comply, to the extent applicable, with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws or regulations in connection with the repurchase of Notes pursuant to thisSection 3.10. To the extent that the provisions of any securities laws or regulations conflict with provisions of this Indenture, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations described in this Indenture by virtue of the conflict.

SECTION 3.11. Future Subsidiary Guarantors. (a) The Company will cause each Restricted Subsidiary (other than a Foreign Subsidiary) that Guarantees, on the Issue Date or any time thereafter, Indebtedness of the Company under the Senior Secured Credit Agreement to execute and deliver to the Trustee a supplemental indenture pursuant to which such Restricted Subsidiary will unconditionally Guarantee, on a joint and several basis, the full and prompt payment of the principal of, premium, if any, and interest in respect of the Notes on a senior unsecured basis and all other obligations under this Indenture on an unsecured basis. Notwithstanding the foregoing, in the event (1) a Subsidiary Guarantor is released and discharged in full from all of its obligations under its Guarantees of (i) the Senior Secured Credit Agreement and (ii) all other Indebtedness of the Company and its Restricted Subsidiaries and (2) such Subsidiary Guarantor has not Incurred any Indebtedness in reliance on its status as a Subsidiary Guarantor underSection 3.3 or such Subsidiary Guarantor's obligations under

such Indebtedness are satisfied in full and discharged or are otherwise permitted to be Incurred by a Restricted Subsidiary (other than a Subsidiary Guarantor) underSection 3.3(b), then the Subsidiary Guarantee of such Subsidiary Guarantor shall be automatically and unconditionally released or discharged.

(b) The obligations of each Subsidiary Guarantor will be limited to the maximum amount as will, after giving effect to all other contingent and fixed liabilities of such Subsidiary Guarantor (including, without limitation, any Guarantees under the Senior Secured Credit Agreement) and after giving effect to any collections from or payments made by or on behalf of any other Subsidiary Guarantor in respect of the obligations of such other Subsidiary Guarantor under its Subsidiary Guarantee or pursuant to its contribution obligations under this Indenture, result in the obligations of such Subsidiary Guarantor under its Subsidiary Guarantee not constituting a fraudulent conveyance or fraudulent transfer under federal or state law.

SECTION 3.12. Limitation on Lines of Business. The Company will not, and will not permit any Restricted Subsidiary to, engage in any material business other than the Oil and Gas Business.

SECTION 3.13. Payments for Consent. Neither the Company nor any of its Restricted Subsidiaries will, directly or indirectly, pay or cause to be paid any consideration, whether by way of interest, fees or otherwise, to any Holder for or as an inducement to any consent, waiver or amendment of any of the terms or provisions of this Indenture or the Notes unless such consideration is offered to be paid or is paid to all Holders that consent, waive or agree to amend in the time frame set forth in the solicitation documents relating to such consent, waiver or amendment.

SECTION 3.14. Limitation on the Sale of Capital Stock of Restricted Subsidiaries. (a) The Company will not, and will not permit any Restricted Subsidiary to, transfer, convey, sell, lease or otherwise dispose of any Voting Stock of any Restricted Subsidiary or, with respect to a Restricted Subsidiary, to issue any of the Voting Stock of a Restricted Subsidiary (other than, if necessary, shares of its Voting Stock constituting directors' qualifying shares) to any Person except:

(1) to the Company or a Wholly Owned Subsidiary; or

(2) in compliance withSection 3.8 and immediately after giving effect to such issuance or sale, such Restricted Subsidiary would continue to be a Restricted Subsidiary.

(b) NotwithstandingSection 3.14(a), the Company and its Restricted Subsidiaries may sell all the Voting Stock of a Restricted Subsidiary as long as the Company or its Restricted Subsidiaries comply with the terms ofSection 3.8 (it being understood that only such portion of the Net Available Cash, if any, as is required to be applied on the date of such transaction in accordance with the terms of this Indenture needs to be applied in accordance therewith at such time).

SECTION 3.15. Effectiveness of Covenants. (a) Following the first Business Day on which:

(1) the Notes have an Investment Grade Rating from both of the Rating Agencies; and

(2) no Default has occurred and is continuing under this Indenture,

the Company and its Restricted Subsidiaries will not be subject toSections 3.3,3.4,3.7,3.8,3.9,3.12,3.14 and 4.1(a)(3), (collectively, the "Suspended Covenants").

(b) If at any time the Notes' credit rating is downgraded from an Investment Grade Rating by any Rating Agency or a Default or Event of Default occurs and is continuing, then the Suspended Covenants will thereafter be reinstated as if such covenants had never been suspended (the "Reinstatement Date") and thereafter be applicable pursuant to the terms of this Indenture (including in connection with performing any calculation or assessment to determine compliance with the terms of this Indenture), unless and until the Notes subsequently attain an Investment Grade Rating (in which event the Suspended Covenants shall no longer be in effect for such time that the Notes maintain an Investment Grade Rating and no Default or Event of Default has occurred and is continuing);provided, however, that no Default, Event of Default or breach of any kind shall be deemed to exist under this Indenture, the Notes or the Subsidiary Guarantees with respect to the Suspended Covenants based on, and none of the Company or any of its Subsidiaries shall bear any liability for, any actions taken or events occurring after the Notes attain an Investment Grade Rating and before any reinstatement of such Suspended Covenants as provided above, or any actions taken at any time pursuant to any contractual obligation arising prior to such reinstatement, regardless of whether such actions or events would have been permitted if the applicable Suspended Covenants remained in effect during such period. The period of time between the date of suspension of the covenants and the Reinstatement Date is referred to as the "Suspension Period."

(c) On the Reinstatement Date, all Indebtedness Incurred during the Suspension Period will be classified to have been Incurred pursuant toSection 3.3(a) or one of the clauses set forth inSection 3.3(b) (to the extent such Indebtedness would be permitted to be Incurred thereunder as of the Reinstatement Date and after giving effect to Indebtedness Incurred prior to the Suspension Period and outstanding on the Reinstatement Date). To the extent such Indebtedness would not be so permitted to be Incurred pursuant toSection 3.3, such Indebtedness will be deemed to have been outstanding on the Issue Date, so that it is classified as permitted underSection 3.3(b)(4)(b). Calculations made after the Reinstatement Date of the amount available to be made as Restricted Payments pursuant toSection 3.4 will be made as thoughSection 3.4 had been in effect since the Issue Date and throughout the Suspension Period. Accordingly, Restricted Payments made during the Suspension Period will reduce the amount available to be made as Restricted Payments pursuant toSection 3.4(a).

(d) During any period when the Suspended Covenants are suspended, the Board of Directors of the Company may not designate any of the Company's Subsidiaries as Unrestricted Subsidiaries pursuant to this Indenture.

SECTION 3.16. Maintenance of Office or Agency. The Company shall maintain in The City of New York, an office or agency where the Notes may be presented or surrendered for payment, where, if applicable, the Notes may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Notes and this Indenture may be served. The office of the Trustee, at 100 Wall Street, Suite 1600, New York, NY 10005, shall be such office or agency of the Company for such purposes, unless the Company shall designate and maintain some other office or agency for one or more of such purposes. The Company shall give prompt written notice to the Trustee of any change in the location of any such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee, and the Company hereby appoints the Trustee as its agent to receive all such presentations, surrenders, notices and demands.

The Company may also from time to time designate one or more other offices or agencies (in or outside of The City of New York) where the Notes may be presented or surrendered for any or all

such purposes and may from time to time rescind any such designation;provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in the Borough of Manhattan, The City of New York for such purposes. The Company shall give prompt written notice to the Trustee of any such designation or rescission and any change in the location of any such other office or agency.

SECTION 3.17. Money for Note Payments to Be Held in Trust. If the Company shall at any time act as its own Paying Agent, it shall, on or before each due date of the principal of (or premium, if any) or interest on any of the Notes, segregate and hold in trust for the benefit of the Persons entitled thereto a sum sufficient to pay the principal of (or premium, if any) or interest so becoming due until such sums shall be paid to such Persons or otherwise disposed of as herein provided and shall promptly notify the Trustee in writing of its action or failure to so act.

Whenever the Company shall have one or more Paying Agents for the Notes, it shall, on or before each due date of the principal of (or premium, if any) or interest on any Notes, deposit with any Paying Agent a sum in same day funds (or New York Clearing House funds (or such other funds as may be acceptable to the Paying Agent) if such deposit is made prior to the date on which such deposit is required to be made) that shall be available to the Trustee by 10:00 a.m. New York City time on such due date sufficient to pay the principal (and premium, if any) or interest so becoming due, such sum to be held in trust for the benefit of the Persons entitled to such principal, premium or interest, and (unless such Paying Agent is the Trustee) the Company shall promptly notify the Trustee in writing of such action or any failure to so act.

The Company shall cause each Paying Agent (other than the Trustee) to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the Trustee, subject to the provisions of thisSection 3.17, that such Paying Agent shall:

(a) hold all sums held by it for the payment of the principal of (and premium, if any) or interest on Notes in trust for the benefit of the Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided;

(b) give the Trustee prompt written notice of any default by the Company (or any other obligor upon the Notes) in the making of any payment of principal (and premium, if any) or interest; and

(c) at any time during the continuance of any such default, upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent.

The Company may at any time, for the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, pay, or by Company Order direct any Paying Agent to pay, to the Trustee all sums held in trust by the Company or such Paying Agent, such sums to be held by the Trustee upon the same trusts as those upon which such sums were held by the Company or such Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be released from all further liability with respect to such sums.

Any money deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal of (or premium, if any) or interest on any Note and remaining unclaimed for two years after such principal, premium or interest has become due and payable shall be paid, without liability for interest earned thereon, to the Company on Company Order, or (if then held by the Company) shall be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Company for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Company as trustee thereof, shall thereupon cease;provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment to the Company, may at the expense of the Company cause to be published once, in a leading daily newspaper (if practicable,The Wall Street Journal (Eastern Edition)) printed in the English language and of general circulation in New York City, notice

that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such publication nor shall it be later than two years after such principal (or premium, if any) or interest shall have become due and payable, subject to any applicable abandoned property law, any unclaimed balance of such money then remaining shall be repaid to the Company. The Company shall pay all publication costs incurred by the Trustee pursuant to its duties under thisSection 3.17.

SECTION 3.18. Corporate Existence. Subject toArticle IV, the Company shall do or cause to be done all things necessary to preserve and keep in full force and effect its corporate existence and that of each Restricted Subsidiary and the corporate rights (charter and statutory) licenses and franchises of the Company and each Restricted Subsidiary;provided, however, that the Company shall not be required to preserve any such existence (except the Company), right, license or franchise if the Board of Directors of the Company shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Company and each of its Restricted Subsidiaries, taken as a whole, and that the loss thereof is not, and shall not be, disadvantageous in any material respect to the Holders.

SECTION 3.19. Payment of Taxes and Other Claims. The Company shall pay or discharge or cause to be paid or discharged, before the same shall become delinquent, (i) all material taxes, assessments and governmental charges levied or imposed upon the Company or any Subsidiary or upon the income, profits or property of the Company or any Subsidiary and (ii) all lawful claims for labor, materials and supplies, which, if unpaid, might by law become a material liability or lien upon the property of the Company or any Restricted Subsidiary;provided, however, that the Company shall not be required to pay or discharge or cause to be paid or discharged any such tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith by appropriate proceedings and for which appropriate reserves, if necessary (in the good faith judgment of management of the Company) are being maintained in accordance with GAAP.

SECTION 3.20. Maintenance of Properties. The Company shall cause all material properties owned by the Company or any Restricted Subsidiary or used or held for use in the conduct of its business or the business of any Restricted Subsidiary to be maintained and kept in normal condition, repair and working order and shall cause to be made all necessary repairs, renewals, replacements, betterments and improvements thereof, all as in the judgment of the Company may be necessary so that the business carried on in connection therewith may be properly conducted at all times;provided, however, that nothing in this Section shall prevent the Company or any of its Restricted Subsidiaries from discontinuing the maintenance of any of such properties if such discontinuance is, in the judgment of the Company, desirable in the conduct of its business or the business of any Restricted Subsidiary and not adverse in any material respect to the Holders.

SECTION 3.21. Compliance with Laws. The Company shall comply, and shall cause each of its Restricted Subsidiaries to comply, with all applicable statutes, rules, regulations, orders and restrictions of the United States of America, all states and municipalities thereof, and of any governmental regulatory authority of any thereof, in respect of the conduct of their respective businesses and the ownership of their respective properties, except for such noncompliances as would not in the aggregate have a material adverse effect on the financial condition or results of operations of the Company and its Restricted Subsidiaries, taken as a whole.

SECTION 3.22. Compliance Certificate. The Company shall deliver to the Trustee within 120 days after the end of each fiscal year of the Company a certificate executed by the Company's principal executive officer, principal accounting officer or principal financial officer stating that in the course of the performance by the signer of his or her duties as such officer he or she would normally have knowledge of any Default or Event of Default and whether or not the signer knows of any Default or Event of Default that occurred during such period. If he or she does, the certificate shall describe the Default or Event of Default, its status and what action the Company is taking or proposes

to take with respect thereto. The Company also shall comply with TIA § 314(a)(4). An Officers' Certificate shall also notify the Trustee should the then current fiscal year be changed to end on any date other than on December 31.

ARTICLE IV

Successor Company and Successor Subsidiary Guarantor

SECTION 4.1. Merger and Consolidation (a). The Company will not consolidate with or merge with or into, or convey, transfer or lease all or substantially all its assets to, any Person, unless:

(1) the resulting, surviving or transferee Person (the "Successor Company") will be a corporation, partnership, trust or limited liability company organized and existing under the laws of the United States of America, any State of the United States or the District of Columbia and the Successor Company (if not the Company) will expressly assume, by supplemental indenture, executed and delivered to the Trustee, in form satisfactory to the Trustee, all the obligations of the Company under the Notes and this Indenture;provided, that if the Successor Company is not a corporation, a corporate Wholly Owned Subsidiary that is a Restricted Subsidiary organized under the laws of the United States of America, any State thereof or the District of Columbia shall become a co-issuer of the Notes;

(2) immediately after giving effect to such transaction (and treating any Indebtedness not previously an obligation of the Company or any of its Restricted Subsidiaries that becomes an obligation of the Successor Company or any Subsidiary of the Successor Company as a result of such transaction as having been Incurred by the Successor Company or such Subsidiary at the time of such transaction), no Default or Event of Default shall have occurred and be continuing;

(3) immediately after giving effect to such transaction, the Successor Company would be able to Incur at least $1.00 of additional Indebtedness pursuant toSection 3.3(a);

(4) each Subsidiary Guarantor (unless it is the other party to the transactions above, in which case clause (1) shall apply) shall have by supplemental indenture confirmed that its Subsidiary Guarantee shall apply to such Person's obligations in respect of this Indenture and the Notes; and

(5) the Company shall have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel, each stating that such consolidation, merger or transfer and such supplemental indenture (if any) comply with this Indenture.

(b) For purposes of thisArticle IV, the sale, lease, conveyance, assignment, transfer, or other disposition of all or substantially all of the properties and assets of one or more Subsidiaries of the Company, which properties and assets, if held by the Company instead of such Subsidiaries, would constitute all or substantially all of the properties and assets of the Company on a consolidated basis, shall be deemed to be the transfer of all or substantially all of the properties and assets of the Company.

(c) The predecessor Company will be released from its obligations under this Indenture and the Successor Company will succeed to, and be substituted for, and may exercise every right and power of, the Company under this Indenture, but, in the case of a lease of all or substantially all its assets, the predecessor Company will not be released from the obligation to pay the principal of and interest on the Notes.

(d) Notwithstanding Section 4.1(a)(2) and (3), (1) any Restricted Subsidiary may consolidate with, merge into or transfer all or part of its properties and assets to the Company and (2) the Company may merge with an Affiliate incorporated or organized solely for the purpose of reincorporating or reorganizing the Company in another jurisdiction to realize tax benefits;provided that, in the case of a

Restricted Subsidiary that merges into the Company, the Company will not be required to comply with Section 4.1(a)(5).

(e) In addition, the Company will not permit any Subsidiary Guarantor to consolidate with or merge with or into any Person (other than the Company or another Subsidiary Guarantor) and will not permit the conveyance, transfer or lease of all or substantially all of the assets of any Subsidiary Guarantor (other than to the Company or another Subsidiary Guarantor)unless:

(1) (a) if such entity remains a Subsidiary Guarantor, the resulting, surviving or transferee Person will be a corporation, partnership, trust or limited liability company organized and existing under the laws of the United States of America, any State of the United States or the District of Columbia and shall have by supplemental indenture confirmed that its Subsidiary Guarantee shall apply to such Person's obligations in respect of this Indenture and the Notes; (b) immediately after giving effect to such transaction (and treating any Indebtedness not previously an obligation of the Company or any of its Subsidiaries that becomes an obligation of the resulting, surviving or transferee Person or any Restricted Subsidiary as a result of such transaction as having been Incurred by such Person or such Restricted Subsidiary at the time of such transaction), no Default of Event of Default shall have occurred and be continuing; and (c) the Company will have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel, each stating that such consolidation, merger or transfer and such supplemental indenture (if any) comply with this Indenture; and

(2) if applicable, the transaction is made in compliance withSection 3.8 (it being understood that only such portion of the Net Available Cash, if any, as is required to be applied on the date of such transaction in accordance with the terms of this Indenture needs to be applied in accordance therewith at such time),Section 3.14 and thisArticle IV.

ARTICLE V

Redemption of Notes

SECTION 5.1. Optional Redemption. The Notes may be redeemed, as a whole or from time to time in part, subject to the conditions and at the redemption prices specified in paragraph 5 of the form of Notes set forth in Exhibit A hereto, which is hereby incorporated by reference and made a part of this Indenture, together with accrued and unpaid interest to the Redemption Date (as defined below).

SECTION 5.2. Applicability of Article. Redemption of Notes at the election of the Company or otherwise, as permitted or required by any provision of this Indenture, shall be made in accordance with such provision and this Article.

SECTION 5.3. Election to Redeem; Notice to Trustee. The election of the Company to redeem any Notes pursuant toSection 5.1 shall be evidenced by a Board Resolution. In case of any redemption at the election of the Company, the Company shall, upon not later than the earlier of the date that is 45 days prior to the redemption date (the "Redemption Date") fixed by the Company or 15 days prior to the date on which notice is given to the Holders (except as provided inSection 5.5 or unless a shorter notice shall be satisfactory to the Trustee), notify the Trustee of such Redemption Date and of the principal amount of Notes to be redeemed and shall deliver to the Trustee such documentation and records as shall enable the Trustee to select the Notes to be redeemed pursuant toSection 5.4. Any such notice may be cancelled at any time prior to notice of such redemption being mailed to any Holder and shall thereby be void and of no effect.

SECTION 5.4. Selection by Trustee of Notes to Be Redeemed. If less than all the Notes are to be redeemed at any time pursuant to an optional redemption, the particular Notes to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the

outstanding Notes not previously called for redemption, in compliance with the requirements of the principal national securities exchange, if any, on which such Notes are listed, or, if such Notes are not so listed, on apro rata basis, by lot or by such other method as the Trustee in its sole discretion shall deem fair and appropriate (and in such manner as complies with applicable legal requirements), and which may provide for the selection for redemption of portions of the principal of the Notes (equal to $2,000 or in an integral multiple of $1,000 in excess thereof);provided, however, no Notes of $2,000 in principal amount or less shall be redeemed in part. If any Note is to be redeemed in part only, the notice of redemption relating to such Note will state the portion of the principal amount thereof to be redeemed.

The Trustee shall promptly notify the Company in writing of the Notes selected for redemption and, in the case of any Notes selected for partial redemption, the method it has chosen for the selection of Notes and the principal amount thereof to be redeemed.

For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to redemption of Notes shall relate, in the case of any Note redeemed or to be redeemed only in part, to the portion of the principal amount of such Note which has been or is to be redeemed.

SECTION 5.5. Notice of Redemption. Notice of redemption shall be given in the manner provided for inSection 11.2 not less than 30 nor more than 60 days prior to the Redemption Date, to each Holder of Notes to be redeemed. At the Company's request, the Trustee shall give notice of redemption in the Company's name and at the Company's expense;provided, however, that the Company shall deliver to the Trustee, at least 45 days (or such shorter period of time as shall be satisfactory to the Trustee) prior to the Redemption Date, an Officers' Certificate requesting that the Trustee give such notice at the Company's expense and setting forth the information to be stated in such notice as provided in the following items.

All notices of redemption shall state:

(i) the Redemption Date,

(ii) the redemption price and the amount of accrued interest to the Redemption Date payable as provided in Section 5.7, if any,

(iii) if less than all outstanding Notes are to be redeemed, the method for selecting the Notes to be redeemed, as well as the aggregate principal amount of Notes to be redeemed and the aggregate principal amount of Notes to be outstanding after such partial redemption,

(iv) in case any Note is to be redeemed in part only, the notice which relates to such Note shall state that on and after the Redemption Date, upon surrender of such Note, the Holder shall receive, without charge, a new Note or Notes of authorized denominations for the principal amount thereof remaining unredeemed,

(v) that on the Redemption Date the redemption price (and accrued interest, if any, to the Redemption Date payable as provided in Section 5.7) shall become due and payable upon each such Note, or the portion thereof, to be redeemed, and, unless the Company defaults in making the redemption payment, that interest on Notes called for redemption (or the portion thereof to be redeemed) shall cease to accrue on and after said date,

(vi) the place or places where such Notes are to be surrendered for payment of the redemption price and accrued interest, if any,

(vii) the name and address of the Paying Agent,

(viii) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price,

(ix) the CUSIP number, that no representation is made as to the accuracy or correctness of the CUSIP number, if any, listed in such notice or printed on the Notes, and any redemption shall not be affected by any defect in such CUSIP numbers, and

(x) the paragraph of the Notes pursuant to which the Notes are to be redeemed.

SECTION 5.6. Deposit of Redemption Price. Prior to 10:00 a.m., New York City time, on any Redemption Date, the Company shall deposit with the Paying Agent (or, if the Company or a Wholly Owned Subsidiary that is a Domestic Subsidiary is a Paying Agent, shall segregate and hold in trust as provided inSection 2.4) an amount of money sufficient to pay the redemption price of, and accrued interest on, all the Notes which are to be redeemed on that date other than Notes or portions of Notes called for redemption that are beneficially owned by the Company and have been delivered by the Company to the Trustee for cancellation.

SECTION 5.7. Notes Payable on Redemption Date. Notice of redemption having been given as aforesaid, the Notes or portions of Notes so to be redeemed shall, on the Redemption Date, become due and payable at the redemption price therein specified (together with accrued interest, if any, to the Redemption Date), and from and after such date (unless the Company shall default in the payment of the redemption price and accrued interest) such Notes shall cease to bear interest. Upon surrender of any such Note for redemption in accordance with said notice, such Note shall be paid by the Company at the redemption price, together with accrued interest, if any, to the Redemption Date (subject to the rights of Holders of record on the relevant record date to receive interest due on the relevant interest payment date).

If any Note called for redemption shall not be so paid upon surrender thereof for redemption, the principal (and premium, if any) shall, until paid, bear interest from the Redemption Date at the rate borne by the Notes.

SECTION 5.8. Notes Redeemed in Part. Any Note which is to be redeemed only in part (pursuant to the provisions of this Article) shall be surrendered at the office or agency of the Company maintained for such purpose pursuant toSection 3.16 (with, if the Company or the Trustee so requires, due endorsement by, or a written instrument of transfer in form satisfactory to the Company and the Trustee duly executed by, the Holder thereof or such Holder's attorney duly authorized in writing), and the Company shall execute, and the Trustee shall authenticate and make available for delivery to the Holder of such Note at the expense of the Company, a new Note or Notes, of any authorized denomination as requested by such Holder, in an aggregate principal amount equal to and in exchange for the unredeemed portion of the principal of the Note so surrendered,provided, that each such new Note will be issued in denominations of $2,000 or an integral multiple of $1,000 in excess thereof.

ARTICLE VI

Defaults and Remedies

SECTION 6.1. Events of Default. Each of the following is an "Event of Default":

(1) default in any payment of interest on any Note when due, continued for 30 days;

(2) default in the payment of principal of or premium, if any, on any Note when due at its Stated Maturity, upon optional redemption, upon required repurchase, upon declaration or otherwise;

(3) failure by the Company or any Subsidiary Guarantor to comply with its obligations underArticle IV;

(4) failure by the Company to comply for 30 days after notice with any of its obligations pursuant toSections 3.3,3.4,3.5,3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13 and 3.14 (in each case, other than a failure to purchase Notes which shall constitute an Event of Default under clause (2) above;

(5) failure by the Company to comply for 60 days after notice with its other agreements contained in this Indenture (other than a failure to comply withSection 3.2) or a failure by the Company to comply for 90 days after notice with its agreements pursuant toSection 3.2;

(6) default under any mortgage, indenture or instrument under which there is issued or by which there is secured or evidenced any Indebtedness for money borrowed by the Company or any of its Restricted Subsidiaries (or the payment of which is guaranteed by the Company or any of its Restricted Subsidiaries), other than Indebtedness owed to the Company or a Restricted Subsidiary, whether such Indebtedness or Guarantee now exists, or is created after the Issue Date, which default:

(a) is caused by a failure to pay principal of, or interest or premium, if any, on such Indebtedness prior to the expiration of the grace period provided in such Indebtedness ("payment default"); or

(b) results in the acceleration of such Indebtedness prior to its maturity (the "cross acceleration provision");

and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other such outstanding Indebtedness under which there is an outstanding uncured payment default or the maturity of which has been and remains so accelerated, aggregates $15.0 million or more;

(7) the Company or a Significant Subsidiary or a group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary pursuant to or within the meaning of any Bankruptcy Law:

(A) commences a voluntary case or voluntary proceeding;

(B) consents to the entry of a judgment, decree or order for relief against it in an involuntary case or involuntary proceeding;

(D) makes a general assignment of substantially all of its property for the benefit of its creditors;

(E) transmits its written or oral consent to or acquiescence in the institution of a bankruptcy proceeding or other collective proceeding for relief by or against its creditors generally;

(F) takes any corporate action to authorize or effect any of the foregoing; or

(G) takes any comparable action under any foreign laws relating to insolvency;

together, the "bankruptcy provisions");

(8) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(A) is for relief in an involuntary case against the Company or any Significant Subsidiary or a group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary, pursuant to or within the meaning of the Bankruptcy Law;

(B) appoints a Custodian for all or substantially all of the property of the Company or any Significant Subsidiary or a group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries) would constitute a Significant Subsidiary, pursuant to or within the meaning of the Bankruptcy Law;

(C) orders the winding up or liquidation of the Company or any Significant Subsidiary or a group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries) would constitute a Significant Subsidiary, pursuant to or within the meaning of the Bankruptcy Law; and

(D) in each case, the order, decree or relief remains unstayed or not dismissed and in effect for 60 days following the entry, issuance or effective date thereof;

(9) failure by the Company or any Significant Subsidiary or group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary to pay final judgments aggregating in excess of $15.0 million (net of any amounts that a reputable and creditworthy insurance company has acknowledged liability for in writing), which judgments are not paid, discharged or stayed for a period of 60 days after such judgment becomes final and no longer subject to appeal (the "judgment default provision"); or

(10) any Subsidiary Guarantee of a Significant Subsidiary or group of Restricted Subsidiaries that, taken together as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries, would constitute a Significant Subsidiary ceases to be in full force and effect (except as contemplated by the terms of this Indenture) or is declared null and void in a judicial proceeding, or any Subsidiary Guarantor that is a Significant Subsidiary or group of Subsidiary Guarantors that, taken together as of the latest audited consolidated financial statements of the Company and its Restricted Subsidiaries, would constitute a Significant Subsidiary denies or disaffirms its obligations under this Indenture or its Subsidiary Guarantee.

However, a default under clauses (4) and (5) of thisSection 6.1 shall not constitute an Event of Default until the Trustee or the Holders of 25% in principal amount of the outstanding Notes notify the Company in writing of the default and the Company does not cure such default within the time specified in clauses (4) and (5) of thisSection 6.1 after receipt of such notice. Such notice must specify the Default, demand that it be remedied and state that such notice is a "Notice of Default."

The foregoing shall constitute Events of Default whatever the reason for any such Event of Default and whether it is voluntary or involuntary or is effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body.

The Company shall deliver to the Trustee, promptly, but in no event later than 30 days after, a senior officer of the Company becomes aware of any events which would constitute an Event of Default under clauses (3), (4), (5), (6), (7), (8), (9) or (10) of thisSection 6.1 in the form of an Officers' Certificate, which Officers' Certificate shall set forth in reasonable detail the status of such Event of Default and what action the Company is taking or proposing to take in respect thereof.

SECTION 6.2. Acceleration. If an Event of Default (other than an Event of Default described in clauses (7) and (8) ofSection 6.1) has occurred and is continuing, the Trustee by written notice to the Company, or the Holders of at least 25% in principal amount of the outstanding Notes by written notice to the Company and the Trustee, may, and the Trustee at the request of such Holders shall, declare the principal of, premium, if any, and accrued and unpaid interest, if any, on all the Notes to be due and payable. Such notice must specify the Event of Default and state that such notice is a "Notice of Acceleration." Upon such a declaration, such principal, premium and accrued and unpaid interest will be due and payable immediately.

In the event of a declaration of acceleration of the Notes because an Event of Default described in clause (6) ofSection 6.1 has occurred and is continuing, the declaration of acceleration of the Notes shall be automatically annulled if the default triggering such Event of Default pursuant to clause (6) ofSection 6.1 shall be remedied or cured by the Company or a Restricted Subsidiary or waived by the holders of the relevant Indebtedness within 20 days after the written notice of declaration of acceleration of the Notes with respect thereto is received by the Company and if (1) the annulment of the acceleration of the Notes would not conflict with any judgment or decree of a court of competent jurisdiction and (2) all existing Events of Default, except nonpayment of principal, premium or interest on the Notes that became due solely because of the acceleration of the Notes, have been cured or waived.

If an Event of Default described in clauses (7) or (8) ofSection 6.1 occurs and is continuing, the principal of, premium, if any, and accrued and unpaid interest on all the Notes will become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holders.

At any time after a declaration of acceleration, but before a judgment or decree for the payment of the money due has been obtained by the Trustee, the Holders of a majority in principal amount of the outstanding Notes by notice to the Trustee and the Company (including, without limitation, waivers and consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes) may rescind and annul such declaration of acceleration and its consequences;provided, that (i) rescission would not conflict with any judgment or decree of a court of competent jurisdiction and (ii) all existing Events of Default, other than nonpayment of the principal of, premium, if any, and interest on the Notes that have become due solely by such declaration of acceleration, have been cured or waived.

SECTION 6.3. Other Remedies. If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy by proceeding at law or in equity to collect the payment of principal of (or premium, if any) or interest on the Notes or to enforce the performance of any provision of the Notes or this Indenture.

The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Holder in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. Except as otherwise provided in Section 2.7 with respect to the replacement of mutilated, destroyed, lost or wrongfully taken Notes, no remedy is exclusive of any other remedy. All available remedies are cumulative to the extent permitted by law.

SECTION 6.4. Waiver of Past Defaults. The Holders of a majority in principal amount of the outstanding Notes by notice to the Trustee may waive (including, without limitation, waivers and consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes) an existing or past Default or Event of Default and its consequences except (i) a Default or Event of Default in the payment of the principal of, premium or interest on, a Note or (ii) a Default or Event of Default in respect of a provision that underSection 9.2 cannot be amended without the consent of each Holder affected. When a Default or Event of Default is waived, it is deemed cured, but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereto.

SECTION 6.5. Control by Majority. The Holders of a majority in principal amount of the outstanding Notes may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture or, subject toSections 7.1 and 7.2, that the Trustee determines is unduly prejudicial to the rights of other Holders or

would involve the Trustee in personal liability;provided, however, that the Trustee may take any other action deemed proper by the Trustee that is not inconsistent with such direction. Prior to taking any action hereunder, the Trustee shall be entitled to indemnification satisfactory to it in its sole discretion against all losses and expenses caused by taking or not taking such action.

SECTION 6.6. Limitation on Suits. Subject toSection 7.1, if an Event of Default occurs and is continuing, the Trustee will be under no obligation to exercise any of the rights or powers under this Indenture at the request or direction of any of the Holders unless such Holders have offered to the Trustee reasonable indemnity or security against any loss, liability or expense. Except to enforce the right to receive payment of principal, premium, if any, or interest when due, no Holder may pursue any remedy with respect to this Indenture or the Notes unless:

(1) such Holder has previously given the Trustee notice that an Event of Default is continuing;

(2) Holders of at least 25% in principal amount of the outstanding Notes have requested the Trustee to pursue the remedy;

(3) such Holders have offered the Trustee reasonable security or indemnity against any loss, liability or expense;

(4) the Trustee has not complied with such request within 60 days after the receipt of the request and the offer of security or indemnity; and

(5) the Holders of a majority in principal amount of the outstanding Notes have not given the Trustee a direction that, in the opinion of the Trustee, is inconsistent with such request within such 60 day period.

A Holder may not use this Indenture to prejudice the rights of another Holder or to obtain a preference or priority over another Holder.

SECTION 6.7. Rights of Holders to Receive Payment. Notwithstanding any other provision of this Indenture (including, without limitation,Section 6.6), the right of any Holder to receive payment of principal of, premium, if any, or interest on the Notes held by such Holder, on or after the respective due dates expressed in the Notes, or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such Holder.

SECTION 6.8. Collection Suit by Trustee. If an Event of Default specified in clauses (1) or (2) ofSection 6.1 occurs and is continuing, the Trustee may recover judgment in its own name and as trustee of an express trust against the Company for the whole amount then due and owing (together with interest on any unpaid interest to the extent lawful) and the amounts provided for inSection 7.7.

SECTION 6.9. Trustee May File Proofs of Claim. The Trustee may file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and the Holders allowed in any judicial proceedings relative to the Company, its Subsidiaries or its or their respective creditors or properties and, unless prohibited by law or applicable regulations, may be entitled and empowered to participate as a member of any official committee of creditors appointed in such matter and may vote on behalf of the Holders in any election of a trustee in bankruptcy or other Person performing similar functions, and any Custodian in any such judicial proceeding is hereby authorized by each Holder to make payments to the Trustee and, in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due it, its agents and its counsel pursuant toSection 7.7 and any other amounts due the Trustee hereunder. Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Holder

thereof, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding.

SECTION 6.10. Priorities. If the Trustee collects any money or property pursuant to thisArticle VI, it shall pay out the money or property in the following order:

First: to the Trustee for amounts due underSection 7.7;

Second: to Holders for amounts due and unpaid on the Notes for principal of, premium, if any, and interest on the Notes, ratably, without preference or priority of any kind, according to the amounts due and payable on the Notes for principal, premium, if any, and interest, respectively; and

Third: to the Company.

The Trustee may, upon prior written notice to the Company, fix a record date and payment date for any payment to Holders pursuant to this Section. At least 15 days before such record date, the Company shall mail to each Holder and the Trustee a notice that states the record date, the payment date and amount to be paid.

SECTION 6.11. Undertaking for Costs. In any suit for the enforcement of any right or remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by it as Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys' fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Section does not apply to a suit by the Trustee, a suit by the Company, a suit by a Holder pursuant toSection 6.7 or a suit by Holders of more than 10% in outstanding principal amount of the Notes.

ARTICLE VII

Trustee

SECTION 7.1. Duties of Trustee. (a) If an Event of Default has occurred and is continuing, the Trustee shall exercise the rights and powers vested in it by this Indenture and use the same degree of care and skill in their exercise as a prudent Person would exercise or use under the circumstances in the conduct of such Person's own affairs;provided that if an Event of Default occurs and is continuing, the Trustee shall be under no obligation to exercise any of the rights or powers under this Indenture at the request or direction of any of the Holders unless such Holders have offered the Trustee indemnity or security satisfactory to the Trustee against loss, liability or expense.

(b) Except during the continuance of an Event of Default:

(1) the Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Indenture and no implied covenants or obligations shall be read into this Indenture against the Trustee; and

(2) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, in the case of any such certificates or opinions which by any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall examine such certificates and opinions to determine whether or not they conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or otherwise verify the contents thereof).

(c) The Trustee may not be relieved from liability for its own negligent action, its own negligent failure to act or its own willful misconduct, except that:

(1) thisSection 7.1(c) does not limit the effect ofSection 7.1(b);

(2) the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer unless it is proved that the Trustee was negligent in ascertaining the pertinent facts; and

(3) the Trustee shall not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant toSection 6.5or Section 6.6.

(d) The Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Company.

(e) Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

(f) No provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur any liability in the performance of any of its duties hereunder or in the exercise of any of its rights or powers, if it shall have reasonable grounds to believe that repayment of such funds or adequate indemnity against such risk or liability is not reasonably assured to it.

(g) Every provision of this Indenture relating to the conduct or affecting the liability of or affording protection to the Trustee shall be subject to the provisions of this Section and to the provisions of the TIA.

(h) The Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders unless such Holders shall have offered to the Trustee security or indemnity satisfactory to it against the costs, expenses (including reasonable attorneys' fees and expenses) and liabilities that might be incurred by it in compliance with such request or direction.

SECTION 7.2. Rights of Trustee. (a) The Trustee may conclusively rely and shall be protected in acting or refraining from acting upon any paper or document believed by it to be genuine and to have been signed or presented by the proper Person or Persons. The Trustee need not investigate any fact or matter stated in the document.

(b) Before the Trustee acts or refrains from acting, it may require an Officers' Certificate or an Opinion of Counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on the Officers' Certificate or Opinion of Counsel.

(c) The Trustee may act through its attorneys and agents and shall not be responsible for the misconduct or negligence of any attorney or agent appointed with due care.

(d) The Trustee shall not be liable for any action it takes or omits to take in good faith which it believes to be authorized or within its rights or powers;provided,however, that the Trustee's conduct does not constitute willful misconduct or negligence.

(e) The Trustee may consult with counsel of its selection, and the advice or opinion of counsel with respect to legal matters relating to this Indenture and the Notes shall be full and complete authorization and protection from liability in respect to any action taken, omitted or suffered by it hereunder in good faith and in accordance with the advice or opinion of such counsel.

(f) The Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, notice, request, direction, consent, order, bond or other paper or document; but the Trustee may make such further inquiry or

investigation into such facts or matters as it may see fit and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company and its Subsidiaries at reasonable times and in a reasonable manner, upon reasonable prior written notice to the Company, personally or by agent or attorney at the sole cost of the Company and shall incur no liability or additional liability of any kind by reason of such inquiry or investigation.

(g) The Trustee shall not be deemed to have knowledge of any Default or Event of Default except (i) during any period it is serving as Registrar and Paying Agent for the Notes, any Event of Default occurring pursuant toSections 6.1(1) and 6.1(2), or (ii) any Default or Event of Default of which a Responsible Officer shall have received written notification or obtained "actual knowledge." "Actual knowledge" shall mean the actual fact or statement of knowing by a Responsible Officer without independent investigation with respect thereto.

(h) Delivery of the reports, information and documents to the Trustee pursuant toSection 3.2 is for informational purposes only and the Trustee's receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company's compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers' Certificates).

(i) In no event shall the Trustee be responsible or liable for special, indirect, or consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action.

(j) The rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act hereunder.

(k) The Trustee may request that the Company deliver an Officers' Certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture, which Officers' Certificate may be signed by any person authorized to sign an Officers' Certificate, including any person specified as so authorized in any such certificate previously delivered and not superseded.

SECTION 7.3. Individual Rights of Trustee. The Trustee in its individual or any other capacity may become the owner or pledgee of Notes and may otherwise deal with the Company or its Affiliates with the same rights it would have if it were not Trustee. Any Paying Agent, Registrar or co-paying agent may do the same with like rights. However, the Trustee must comply withSections 7.10 and 7.11. In addition, the Trustee shall be permitted to engage in transactions with the Company;provided, however, that if the Trustee acquires any conflicting interest the Trustee must (i) eliminate such conflict within 90 days of acquiring such conflicting interest, (ii) apply to the SEC for permission to continue acting as Trustee or (iii) resign.

SECTION 7.4. Trustee's Disclaimer. The Trustee shall not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Notes, it shall not be accountable for the Company's use of the Notes or the proceeds from the Notes, and it shall not be responsible for any statement of the Company in this Indenture or in any document issued in connection with the sale of the Notes or in the Notes other than the Trustee's certificate of authentication or for the use or application of any funds received by any Paying Agent other than the Trustee.

SECTION 7.5. Notice of Defaults. If a Default or Event of Default occurs and is continuing and if a Responsible Officer has actual knowledge thereof, the Trustee shall mail to each Holder notice of the Default or Event of Default within 90 days after the Responsible Officer obtains actual knowledge

of a Default or Event of Default. Except in the case of a Default or Event of Default in payment of principal of, premium (if any), or interest on any Note (including payments pursuant to the required repurchase provisions of such Note, if any), the Trustee may withhold the notice if and so long as its board of directors, a committee of its board of directors or a committee of its Responsible Officers or a Responsible Officer in good faith determines that withholding notice is in the interests of Holders.

SECTION 7.6. Reports by Trustee to Holders. As promptly as practicable after each January 15 beginning with the January 15 following the date of this Indenture, and in any event prior to February 15 in each year, the Trustee shall mail to each Holder a brief report dated as of such January 15 that complies with TIA § 313(a), if and to the extent such report may be required by the TIA. The Trustee also shall comply with TIA § 313(b). The Trustee shall also transmit by mail all reports required by TIA § 313(c).

A copy of each report at the time of its mailing to Holders shall be filed with the SEC and each stock exchange (if any) on which the Notes are listed. The Company agrees to notify promptly the Trustee in writing whenever the Notes become listed on any stock exchange and of any delisting thereof.

SECTION 7.7. Compensation and Indemnity. The Company and the Subsidiary Guarantors, jointly and severally, shall pay to the Trustee from time to time such compensation for its services as the parties shall agree in writing from time to time. The Trustee's compensation shall not be limited by any law on compensation of a trustee of an express trust. The Company and the Subsidiary Guarantors, jointly and severally, shall reimburse the Trustee upon request for all reasonable out-of-pocket expenses, disbursements and advances incurred or made by it, including, but not limited to, costs of collection, costs of preparing and reviewing reports, certificates and other documents, costs of preparation and mailing of notices to Holders and reasonable costs of counsel retained by the Trustee in connection with the delivery of an Opinion of Counsel or otherwise, in addition to the compensation for its services. Such expenses shall include the reasonable compensation and expenses, disbursements and advances of the Trustee's agents, counsel, accountants and experts. The Company and the Subsidiary Guarantors, jointly and severally, shall indemnify the Trustee, and each of its officers, directors, counsel and agents, against any and all loss, liability or expense (including, but not limited to, reasonable attorneys' fees and expenses) incurred by it in connection with the acceptance or administration of this trust and the performance of its duties hereunder, including the costs and expenses of enforcing this Indenture (including thisSection 7.7) and the Notes and of defending itself against any claims (whether asserted by any Holder, the Company or otherwise). The Trustee shall notify the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company shall not relieve the Company of its obligations hereunder. The Company shall defend the claim and the Trustee may have separate counsel and the Company shall pay the fees and expenses of such counsel. The Company and the Subsidiary Guarantors need not reimburse any expense or indemnify against any loss, liability or expense incurred by the Trustee or any other indemnified Person through the Trustee's or such indemnified Person's own willful misconduct, negligence or bad faith, subject to the exceptions contained inSection 7.1(c) hereof.

To secure the Company's and the Subsidiary Guarantors' payment obligations in this Section, the Trustee shall have a lien prior to the Notes on all money or property held or collected by the Trustee other than money or property held in trust to pay principal of and interest on particular Notes. The Trustee's right to receive payment of any amounts due under thisSection 7.7 shall not be subordinate to any other liability or indebtedness of the Company or the Subsidiary Guarantors.

The Company's payment obligations pursuant to this Section and any lien arising hereunder shall survive the discharge of this Indenture and the resignation or removal of the Trustee. When the Trustee incurs expenses after the occurrence of a Default specified inSection 6.1(7) or (8), the expenses are intended to constitute expenses of administration under any Bankruptcy Law.

SECTION 7.8. Replacement of Trustee. The Trustee may resign at any time by so notifying the Company. The Holders of a majority in principal amount of the Notes may remove the Trustee by so notifying the Company and the Trustee in writing. The Company shall remove the Trustee if:

(1) the Trustee fails to comply withSection 7.10;

(2) the Trustee is adjudged bankrupt or insolvent;

(3) a receiver or other public officer takes charge of the Trustee or its property; or

(4) the Trustee otherwise becomes incapable of acting.

A resignation or removal of the Trustee and the appointment of a Successor Trustee shall become effective only upon the Successor Trustee's acceptance of appointment as provided in this Section 7.8. If the Trustee resigns or is removed by the Company or by the Holders of a majority in principal amount of the Notes, or if a vacancy exists in the office of Trustee for any reason (the Trustee in such event being referred to herein as the retiring Trustee), the Company shall, by a Board Resolution, promptly appoint a successor Trustee.

A successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the Company. Thereupon the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee shall mail a notice of its succession to Holders. The retiring Trustee shall promptly transfer all property held by it as Trustee to the successor Trustee,provided that all sums owing to the Trustee hereunder have been paid and subject to the lien provided for inSection 7.7.

If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee or the Holders of 10% in principal amount of the Notes may petition, at the expense of the Company, any court of competent jurisdiction for the appointment of a successor Trustee.

If the Trustee fails to comply withSection 7.10, unless the Trustee's duty to resign is stayed as provided in TIA § 310(b), any Holder who satisfies the requirements of TIA § 310(b) may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

Notwithstanding the replacement of the Trustee pursuant to thisSection 7.8, the Company's obligations underSection 7.7 shall continue for the benefit of the retiring Trustee.

SECTION 7.9. Successor Trustee by Merger. If the Trustee consolidates with, merges or converts into, or transfers all or substantially all its corporate trust business or assets to, another corporation, banking association or other entity, the resulting, surviving or transferee entity without any further act shall be the successor Trustee.

In case at the time such successor or successors by merger, conversion or consolidation to the Trustee shall succeed to the trusts created by this Indenture, any of the Notes shall have been authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor trustee, and deliver such Notes so authenticated; and in case at that time any of the Notes shall not have been authenticated, any successor to the Trustee may authenticate such Notes either in the name of any predecessor hereunder or in the name of the successor to the Trustee; and in all such cases such certificates shall have the full force which it is anywhere in the Notes or in this Indenture provided that the certificate of the Trustee shall have.

SECTION 7.10. Eligibility; Disqualification. The Trustee shall at all times satisfy the requirements of TIA § 310(a). The Trustee shall have a combined capital and surplus of at least $150 million as set forth in its most recent filed annual report of condition. The Trustee shall comply with TIA § 310(b).

SECTION 7.11. Preferential Collection of Claims Against Company. If and when the Trustee shall be or become a creditor of the Company, the Trustee shall comply with TIA § 311(a), excluding any creditor relationship listed in TIA § 311(b). A Trustee who has resigned or been removed shall be subject to TIA § 311(a) to the extent indicated.

ARTICLE VIII

Discharge of Indenture; Defeasance

SECTION 8.1. Satisfaction and Discharge of Indenture. This Indenture shall upon Company Order cease to be of further effect (except as to any surviving rights of registration of transfer or exchange of Notes herein expressly provided for), and the Trustee, at the expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture, when

(1) either

(A) all Notes theretofore authenticated and delivered (other than (i) Notes which have been mutilated, destroyed, lost or wrongfully taken and which have been replaced or paid as provided in Section 2.7 and (ii) Notes for which payment money has theretofore been deposited in trust or segregated and held in trust by the Company and thereafter repaid to the Company or discharged from such trust, as provided in Section 3.17) have been delivered to the Trustee for cancellation; or

(B) all such Notes not theretofore delivered to the Trustee for cancellation:

(i) have become due and payable, or

(ii) will become due and payable at their Stated Maturity within one year of the date of deposit, or

(iii) are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company,

and the Company, in the case of (i), (ii) or (iii) above, has deposited or caused to be deposited with the Trustee as trust funds in trust for such purpose money in an amount sufficient to pay and discharge the entire indebtedness on such Notes not theretofore delivered to the Trustee for cancellation, for principal and any premium and interest to the date of such deposit (in the case of Notes which have become due and payable) or to the Stated Maturity or Redemption Date, as the case may be;

(2) the Company has paid or caused to be paid all other sums payable hereunder by the Company; and

(3) the Company has delivered to the Trustee an Officer's Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee under Section 7.7, the obligations of the Trustee or the Company to any Authenticating Agent under Section 2.2 and, if money shall have been deposited with the Trustee pursuant to subclause (B) of Clause (1) of this Section, the obligations of the Trustee under Section 8.3 and the last paragraph of Section 3.17 shall survive such satisfaction and discharge.

SECTION 8.2. Discharge of Liability on Notes; Defeasance. (a) Subject toSection 8.2(b), the Company at any time may terminate (i) all its obligations under the Notes and the Indenture and all obligations of the Subsidiary Guarantors under the Subsidiary Guarantees and the Indenture ("legal defeasance"), and after giving effect to such legal defeasance, any omission to comply with such

obligations shall no longer constitute a Default or Event of Default or (ii) its obligations under clause (3) ofSection 4.1(a) andSections 3.2, 3.3,3.4,3.5,3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13, 3.14,3.15 or 3.19 and the Company may omit to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document and such omission to comply with such covenants shall no longer constitute a Default or an Event of Default under clauses (3), (4) and (5) ofSection 6.1, and the events specified in clauses (6), (7) (but only with respect to a Significant Subsidiary or group of Restricted Subsidiaries that would constitute a Significant Subsidiary), (8) and (9) ofSection 6.1 shall no longer constitute an Event of Default (clause (ii) being referred to as the "Covenant Defeasance"), but except as specified above, the remainder of the Indenture and the Notes shall be unaffected thereby. The Company may exercise its legal defeasance option notwithstanding its prior exercise of its Covenant Defeasance option.

If the Company exercises its legal defeasance option, payment of the Notes may not be accelerated because of an Event of Default with respect to the Notes, and the Subsidiary Guarantees in effect at such time shall terminate. If the Company exercises its Covenant Defeasance option, payment of the Notes may not be accelerated because of an Event of Default specified in clauses (4) or (5) ofSection 6.1 (as such clauses relate toSections 3.2, 3.3,3.4,3.5,3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13, 3.14,3.15 or 3.19), or in clauses (6), (7) (but only with respect to a Significant Subsidiary or group of Restricted Subsidiaries that would constitute a Significant Subsidiary), (8) and (9) ofSection 6.1 or because of the failure of the Company to comply with clause (3) ofSection 4.1(a).

Upon satisfaction of the conditions set forth herein and upon request of the Company, the Trustee shall acknowledge in writing the discharge of those obligations that the Company terminates.

(b) The Company may exercise its legal defeasance option or its Covenant Defeasance option only if:

(i) the Company irrevocably deposits in trust with the Trustee for the benefit of the Holders money in U.S. dollars or U.S. Government Obligations or a combination thereof for the payment of principal, premium, if any, and interest on the Notes to maturity or redemption, as the case may be;

(ii) the Company delivers to the Trustee a certificate from a nationally recognized firm of independent accountants expressing their opinion (or if nationally recognized independent accounting firms no longer routinely express such opinions, a certificate from the chief financial officer of the Company expressing his or her opinion) that the payments of principal and interest when due and without reinvestment on the deposited U.S. Government Obligations plus any deposited money without investment shall provide cash at such times and in such amounts as shall be sufficient to pay principal, premium, if any, and interest when due on all the Notes to maturity or redemption, as the case may be;

(iii) no Default or Event of Default shall have occurred and be continuing on the date of such deposit (other than Defaults and Events of Default arising out of the incurrence of Indebtedness used to fund such deposit) or, with respect to the Company under clause (7) ofSection 6.1, on the 123rd day after such date of deposit;

(iv) such legal defeasance or Covenant Defeasance shall not result in a breach or violation of, or constitute a Default under, the Indenture or any other material agreement or instrument to which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries is bound;

(v) the Company shall have delivered to the Trustee an Opinion of Counsel (subject to customary assumptions and exclusions) to the effect that, assuming no intervening bankruptcy

of the Company between the date of deposit and the 123rd day following the deposit and that no Holder of the Notes is an insider of the Company within the meaning of the Bankruptcy Law, after the 123rd day following the deposit, the trust funds shall not be subject to the effect of any applicable bankruptcy, insolvency, reorganization or similar laws affecting creditors' right generally;

(vi) the Company delivers to the Trustee an Opinion of Counsel (subject to customary assumptions and exclusions) to the effect that the trust resulting from the deposit does not constitute, or is qualified as, a regulated investment company under the Investment Company Act of 1940;

(vii) in the case of legal defeasance, the Company shall have delivered to the Trustee an Opinion of Counsel (subject to customary assumptions and exclusions) in the United States stating that (i) the Company has received from, or there has been published by, the Internal Revenue Service a ruling, or (ii) since the date of this Indenture there has been a change in the applicable Federal income tax law, in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders shall not recognize income, gain or loss for Federal income tax purposes as a result of such defeasance and shall be subject to Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such legal defeasance had not occurred;

(viii) in the case of Covenant Defeasance, the Company shall have delivered to the Trustee an Opinion of Counsel (subject to customary assumptions and exclusions) in the United States to the effect that the Holders shall not recognize income, gain or loss for Federal income tax purposes as a result of such deposit and Covenant Defeasance and shall be subject to Federal income tax on the same amount, in the same manner and at the same times as would have been the case if such deposit and Covenant Defeasance had not occurred; and

(ix) the Company delivers to the Trustee an Officers' Certificate and an Opinion of Counsel, together stating that all conditions precedent to the defeasance and discharge of the Notes and the Indenture as contemplated by thisArticle VIII have been complied with.

(c) Notwithstanding the provisions ofSections 8.2(a) and (b), the Company's obligations inSections 2.3,2.4,2.5,2.6,7.1,7.2,7.7,7.8,8.4,8.5 and 8.6 shall survive until the Notes have been paid in full. Thereafter, the Company's and the Subsidiary Guarantors' obligations inSections 7.7,8.4 and 8.5 shall survive.

SECTION 8.3. Application of Trust Money. Subject toSection 8.6, the Trustee shall hold in trust money or U.S. Government Obligations deposited with it pursuant to thisArticle VIII. It shall apply the deposited money and the money from U.S. Government Obligations through the Paying Agent and in accordance with the Notes and this Indenture to the payment of principal of premium, if any, and interest on the Notes.

SECTION 8.4. Repayment to Company. Anything herein to the contrary notwithstanding, the Trustee shall deliver or pay to the Company from time to time upon Company Order any money or U.S. Government Obligations held by it as provided in thisArticle VIII which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, are in excess of the amount thereof which would then be required to be deposited to effect legal defeasance or covenant defeasance, as applicable,provided that the Trustee shall not be required to liquidate any U.S. Government Obligations in order to comply with the provisions of thisSection 8.4.

Subject to any applicable abandoned property law, the Trustee and the Paying Agent shall pay to the Company upon written request any money held by them for the payment of principal of, premium,

if any, or interest on the Notes that remains unclaimed for two years, and, thereafter, Holders entitled to such money must look to the Company for payment as general creditors.

SECTION 8.5. Indemnity for U.S. Government Obligations. The Company shall pay and shall indemnify the Trustee against any tax, fee or other charge imposed on or assessed against deposited U.S. Government Obligations or the principal and interest received on such U.S. Government Obligations.

SECTION 8.6. Reinstatement. If the Trustee or Paying Agent is unable to apply any money or U.S. Government Obligations in accordance with thisArticle VIII by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the obligations of the Company under this Indenture and the Notes shall be revived and reinstated as though no deposit had occurred pursuant to thisArticle VIII until such time as the Trustee or Paying Agent is permitted to apply all such money or U.S. Government Obligations in accordance with thisArticle VIII;provided, however, that, if the Company has made any payment of interest on or principal of any Notes because of the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money or U.S. Government Obligations held by the Trustee or Paying Agent.

ARTICLE IX

Amendments

SECTION 9.1. Without Consent of Holders. The Company, the Subsidiary Guarantors and the Trustee may amend or supplement this Indenture, the Notes and the Subsidiary Guarantees without notice to or consent of any Holder to:

(1) cure any ambiguity, omission, defect or inconsistency;

(2) provide for the assumption by a successor of the obligations of the Company or any Subsidiary Guarantor under this Indenture;

(3) provide for uncertificated Notes in addition to or in place of certificated Notes (provided that the uncertificated Notes are issued in registered form for purposes of Section 163(f) of the Code, or in a manner such that the uncertificated Notes are described in Section 163(f)(2)(B) of the Code);

(4) add Guarantees with respect to the Notes;

(5) release a Subsidiary Guarantor from its obligations under its Subsidiary Guarantee or this Indenture in accordance with the applicable provisions of this Indenture;

(6) secure the Notes;

(7) add to the covenants of the Company, any Subsidiary Guarantor or other obligor under this Indenture, the Notes or Subsidiary Guarantees, as the case may be, for the benefit of the Holders or surrender any right or power conferred upon the Company, any Subsidiary Guarantor or other such obligor;

(8) make any change that does not adversely affect the legal or contractual rights of any Holder under this Indenture, the Notes or the Subsidiary Guarantees;

(9) comply with any requirement of the SEC in connection with the qualification of this Indenture under the TIA;

(10) provide for the appointment of a successor Trustee;provided that the successor Trustee is otherwise qualified and eligible to act as such under the terms of this Indenture;

(11) provide for the issuance of Additional Notes under this Indenture in accordance with the limitations described in this Indenture;

(12) to comply with the rules of any applicable securities depositary; or

(13) conform the text of this Indenture, the Notes or the Subsidiary Guarantees to any provision of the section of the Registration Statement (333-[ ]) on Form S-3 of the Company, filed with the SEC on April [ ], 2007, entitled "Description of Notes."

After an amendment or supplement under thisSection 9.1 becomes effective, the Company will mail to Holders a notice briefly describing such amendment or supplement. The failure to give such notice to all Holders, or any defect therein, shall not impair or affect the validity of an amendment or supplement under thisSection 9.1.

SECTION 9.2. With Consent of Holders. The Company, the Subsidiary Guarantors and the Trustee may amend or supplement this Indenture, the Subsidiary Guarantee or the Notes without notice to any Holder but with the written consent of the Holders of at least a majority in principal amount of the Notes then outstanding (including, without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes). Any Default or Event of Default (subject toSection 6.4) or compliance with any provision of this Indenture, a Subsidiary Guarantee or the Notes may be waived with the written consent of the Holders of a majority in principal amount of the Notes then outstanding (including, without limitation, waivers and consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes). However, without the consent of each Holder of an outstanding Note affected, no amendment, supplement or waiver may:

(1) reduce the percentage in principal amount of Notes outstanding whose Holders must consent to an amendment;

(2) reduce the stated rate of or extend the stated time for payment of interest on any Note;

(3) reduce the principal of or extend the Stated Maturity of any Note;

(4) reduce the premium payable upon the redemption or repurchase of any Note or change the time at which any Note may be redeemed or repurchased as described underSection 3.8,Section 3.10 orArticle V or any similar provision, whether through an amendment or waiver ofSection 3.8,Section 3.10 orArticle V, related definitions or otherwise (except for amendments to the definition of "Change of Control");

(5) make any Note payable in money other than that stated in the Note;

(6) impair the right of any Holder to receive payment of principal, premium, if any, and interest on such Holder's Notes on or after the due dates therefor or to institute suit for the enforcement of any payment on or with respect to such Holder's Notes;

(7) make any change to the provisions of thisSection 9.2 or in the waiver provisions of this Indenture; or

(8) modify the Subsidiary Guarantees in any manner adverse to the Holders.

It shall not be necessary for the consent of the Holders under thisSection 9.2 to approve the particular form of any proposed amendment or supplement, but it shall be sufficient if such consent approves the substance thereof. A consent to any amendment, supplement or waiver under this Indenture by any Holder given in connection with a tender of such Holder's Notes will not be rendered invalid by such tender.

After an amendment or supplement under thisSection 9.2 becomes effective, the Company shall mail to Holders a notice briefly describing such amendment or supplement. The failure to give such

notice to all Holders, or any defect therein, shall not impair or affect the validity of an amendment under thisSection 9.2.

SECTION 9.3. Compliance with Trust Indenture Act. Every amendment or supplement to this Indenture, a Subsidiary Guarantee or the Notes shall comply with the TIA as then in effect.

SECTION 9.4. Revocation and Effect of Consents and Waivers. A consent to an amendment, supplement or a waiver by a Holder of a Note shall bind the Holder and every subsequent Holder of that Note or portion of the Note that evidences the same debt as the consenting Holder's Note, even if notation of the consent or waiver is not made on the Note. Any such Holder or subsequent Holder may revoke the consent or waiver as to such Holder's Note or portion of the Note if the Trustee receives the notice of revocation before the date the amendment, supplement or waiver becomes effective or otherwise in accordance with any related solicitation documents. After an amendment, supplement or waiver becomes effective, it shall bind every Holder unless it makes a change described in any of clauses (1) through (10) ofSection 9.2, in which case the amendment, supplement, waiver or other action shall bind each Holder who has consented to it and every subsequent Holder that evidences the same debt as the consenting Holder's Notes. An amendment, supplement or waiver shall become effective upon receipt by the Trustee or the Company of the requisite number of written consents, if any, underSection 9.1 or 9.2 as applicable.

The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to give their consent or take any other action described above or required or permitted to be taken pursuant to this Indenture. If a record date is fixed, then notwithstanding the immediately preceding paragraph, those Persons who were Holders at such record date (or their duly designated proxies), and only those Persons, shall be entitled to give such consent or to revoke any consent previously given or to take any such action, whether or not such Persons continue to be Holders after such record date. No such consent shall be valid or effective more than 120 days after such record date.

SECTION 9.5. Notation on or Exchange of Notes. If an amendment, supplement or waiver changes the terms of a Note, the Trustee may require the Holder of the Note to deliver it to the Trustee. The Trustee may place an appropriate notation on the Note regarding the changed terms and return it to the Holder. Alternatively, if the Company or the Trustee so determine, the Company in exchange for the Note shall issue and the Trustee shall authenticate a new Note that reflects the changed terms. Failure to make the appropriate notation or to issue a new Note shall not affect the validity of such amendment, supplement or waiver.

SECTION 9.6. Trustee to Sign Amendments. The Trustee shall sign any amendment, supplement or waiver authorized pursuant to thisArticle IX if the amendment, supplement or waiver does not adversely affect the rights, duties, liabilities or immunities of the Trustee. If it does, the Trustee may but need not sign it. In signing any amendment, supplement or waiver the Trustee shall be entitled to receive indemnity reasonably satisfactory to it and to receive, and (subject toSections 7.1 and 7.2) shall be fully protected in relying upon an Officers' Certificate and an Opinion of Counsel stating that such amendment, supplement or waiver is authorized or permitted by this Indenture and that such amendment, supplement or waiver is the legal, valid and binding obligation of the Company and any Subsidiary Guarantors, enforceable against them in accordance with its terms, subject to customary exceptions, and complies with the provisions hereof (includingSection 9.3).

ARTICLE X

Subsidiary Guarantees

SECTION 10.1. Guarantees. The Subsidiary Guarantors hereby, jointly and severally, unconditionally guarantee on a senior unsecured basis and as primary obligor and not merely as surety

to each Holder and the Trustee the full and punctual payment when due, whether at maturity, by acceleration, by redemption or otherwise, of the principal of, premium, if any, and interest on the Notes and all other obligations and liabilities of the Company under this Indenture (including without limitation interest accruing after the filing of any petition in bankruptcy, or the commencement of any insolvency, reorganization or like proceeding, relating to the Company or any Subsidiary Guarantor whether or not a claim for post-filing or post-petition interest is allowed in such proceeding) (all the foregoing being hereinafter collectively called the "Obligations"). The Obligations of Subsidiary Guarantors under the Subsidiary Guarantees shall rank equally in right of payment with other Indebtedness of such Subsidiary Guarantor, except to the extent such other Indebtedness is expressly subordinate to the obligations arising under the Subsidiary Guarantee. Each Subsidiary Guarantor further agrees (to the extent permitted by law) that the Obligations may be extended or renewed, in whole or in part, without notice or further assent from it, and that it shall remain bound under thisArticle X notwithstanding any extension or renewal of any Obligation.

Each Subsidiary Guarantor waives presentation to, demand of payment from and protest to the Company of any of the Obligations and also waives notice of protest for nonpayment. Each Subsidiary Guarantor waives notice of any default under the Notes or the Obligations. The obligations of each Subsidiary Guarantor hereunder shall not be affected by (a) the failure of any Holder to assert any claim or demand or to enforce any right or remedy against the Company or any other person under this Indenture, the Notes or any other agreement or otherwise; (b) any extension or renewal of any thereof; (c) any rescission, waiver, amendment or modification of any of the terms or provisions of this Indenture, the Notes or any other agreement; (d) the release of any security held by any Holder or the Trustee for the Obligations or any of them; (e) the failure of any Holder to exercise any right or remedy against any other Subsidiary Guarantor; or (f) any change in the ownership of the Company.

Each Subsidiary Guarantor further agrees that its Guarantee herein constitutes a Guarantee of payment when due (and not a Guarantee of collection) and waives any right to require that any resort be had by any Holder to any security held for payment of the Obligations.

The obligations of each Subsidiary Guarantor hereunder shall not be subject to any reduction, limitation, impairment or termination for any reason (other than payment of the Obligations in full), including any claim of waiver, release, surrender, alteration or compromise, and shall not be subject to any defense of setoff, counterclaim, recoupment or termination whatsoever or by reason of the invalidity, illegality or unenforceability of the Obligations or otherwise. Without limiting the generality of the foregoing, the obligations of each Subsidiary Guarantor herein shall not be discharged or impaired or otherwise affected by the failure of any Holder to assert any claim or demand or to enforce any remedy under this Indenture, the Notes or any other agreement, by any waiver or modification of any thereof, by any default, failure or delay, willful or otherwise, in the performance of the Obligations, or by any other act or thing or omission or delay to do any other act or thing which may or might in any manner or to any extent vary the risk of any Subsidiary Guarantor or would otherwise operate as a discharge of such Subsidiary Guarantor as a matter of law or equity.

Each Subsidiary Guarantor agrees that its Guarantee herein shall remain in full force and effect until payment in full of all the Obligations or such Subsidiary Guarantor is released from its Guarantee upon the merger or the sale of all the Capital Stock or assets of the Subsidiary Guarantor in compliance withSection 10.2 or otherwise in accordance with the terms of this Indenture. Each Subsidiary Guarantor further agrees that its Guarantee herein shall continue to be effective or be reinstated, as the case may be, if at any time payment, or any part thereof, of principal of or interest on any of the Obligations is rescinded or must otherwise be restored by any Holder upon the bankruptcy or reorganization of the Company or otherwise.

In furtherance of the foregoing and not in limitation of any other right which any Holder has at law or in equity against any Subsidiary Guarantor by virtue hereof, upon the failure of the Company to

pay any of the Obligations when and as the same shall become due, whether at maturity, by acceleration, by redemption or otherwise, the Subsidiary Guarantors hereby jointly and severally promise to and shall, upon receipt of written demand by the Trustee, forthwith pay, or cause to be paid, in cash, to the Holders an amount equal to the sum of (i) the unpaid amount of such Obligations then due and owing and (ii) accrued and unpaid interest on such Obligations then due and owing (but only to the extent not prohibited by law).

Each Subsidiary Guarantor further agrees that, as between such Subsidiary Guarantor, on the one hand, and the Holders, on the other hand, (x) the maturity of the Obligations guaranteed hereby may be accelerated as provided in this Indenture for the purposes of its Guarantee herein, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the Obligations guaranteed hereby and (y) in the event of any such declaration of acceleration of such Obligations, such Obligations (whether or not due and payable) shall forthwith become due and payable by the Subsidiary Guarantor for the purposes of this Guarantee.

Each Subsidiary Guarantor also agrees to pay any and all reasonable costs and expenses (including reasonable attorneys' fees) incurred by the Trustee or the Holders in enforcing any rights under thisSection 10.1.

SECTION 10.2. Limitation on Liability; Termination, Release and Discharge.

(a) The obligations of each Subsidiary Guarantor hereunder shall be limited to the maximum amount as shall, after giving effect to all other contingent and fixed liabilities of such Subsidiary Guarantor (including, without limitation, any guarantees under the Senior Secured Credit Agreement) and after giving effect to any collections from or payments made by or on behalf of any other Subsidiary Guarantor in respect of the obligations of such other Subsidiary Guarantor under its Subsidiary Guarantee or pursuant to its contribution obligations under this Indenture, result in the obligations of such Subsidiary Guarantor under its Subsidiary Guarantee not constituting a fraudulent conveyance or fraudulent transfer under federal or state law and not otherwise being void or voidable under any similar laws affecting the rights of creditors generally.

(b) In the event a Subsidiary Guarantor is sold or disposed of (whether by merger, consolidation, the sale of its Capital Stock or the sale of all or substantially all of its assets (other than by lease) and whether or not the Subsidiary Guarantor is the surviving corporation in such transaction) to a Person which is not the Company or a Restricted Subsidiary of the Company (other than a Receivables Entity) after giving effect to the sale or other disposition, such Subsidiary Guarantor shall be released from its obligations under this Indenture and its Subsidiary Guarantee if: (1) the sale or other disposition is in compliance with this Indenture, includingSection 3.8 (it being understood that only such portion of the Net Available Cash as is required to be applied on or before the date of such release in accordance with the terms of this Indenture needs to be applied in accordance therewith at such time),Section 3.14 andArticle IV; and (2) all the obligations of such Subsidiary Guarantor under all Credit Facilities and any other agreements evidencing any other Indebtedness of the Company or any Restricted Subsidiary (after giving effect to the sale or other disposition) terminate upon consummation of such transaction.

(c) Each Subsidiary Guarantor shall be deemed released and discharged in full from all its obligations under this Indenture and its Subsidiary Guarantee and such Subsidiary Guarantee shall terminate upon the legal defeasance of the Notes pursuant to the provisions ofArticle VIII hereof.

(d) A Subsidiary Guarantor shall be deemed released and discharged in full from all of its obligations under this Indenture and its Subsidiary Guarantee and such Subsidiary Guarantee shall terminate if (1) (a) such Subsidiary Guarantor is released from its Guarantees of, and all pledges and security interests granted in connection with, the Senior Secured Credit Agreement and all other Indebtedness of the Company and its other Restricted Subsidiary and (b) such Subsidiary

Guarantor has not Incurred any Indebtedness in reliance on its status as a Subsidiary Guarantor under Section 3.3 or such Subsidiary Guarantor's obligations under such Indebtedness are satisfied in full and discharged or are otherwise permitted to be Incurred by a Restricted Subsidiary (other than a Subsidiary Guarantor) under Section 3.3(b) or (2) the Company designates such Subsidiary Guarantor as an Unrestricted Subsidiary and such designation complies with the applicable provisions of this Indenture or (3) in connection with any legal defeasance of the Notes or upon satisfaction and discharge of this Indenture, each in accordance with the terms of this Indenture.

SECTION 10.3. Right of Contribution. Each Subsidiary Guarantor hereby agrees that to the extent that any Subsidiary Guarantor shall have paid more than its proportionate share of any payment made on the obligations under the Subsidiary Guarantees, such Subsidiary Guarantor shall be entitled to seek and receive contribution from and against the Company or any other Subsidiary Guarantor who has not paid its proportionate share of such payment. The provisions of thisSection 10.3 shall in no respect limit the obligations and liabilities of each Subsidiary Guarantor to the Trustee and the Holders, and each Subsidiary Guarantor shall remain liable to the Trustee and the Holders for the full amount guaranteed by such Subsidiary Guarantor hereunder.

SECTION 10.4. No Subrogation. Notwithstanding any payment or payments made by each Subsidiary Guarantor hereunder, no Subsidiary Guarantor shall be entitled to be subrogated to any of the rights of the Trustee or any Holder against the Company or any other Subsidiary Guarantor or any collateral security or guarantee or right of offset held by the Trustee or any Holder for the payment of the Obligations, nor shall any Subsidiary Guarantor seek or be entitled to seek any contribution or reimbursement from the Company or any other Subsidiary Guarantor in respect of payments made by such Subsidiary Guarantor hereunder, until all amounts owing to the Trustee and the Holders by the Company on account of the Obligations are paid in full. If any amount shall be paid to any Subsidiary Guarantor on account of such subrogation rights at any time when all of the Obligations shall not have been paid in full, such amount shall be held by such Subsidiary Guarantor in trust for the Trustee and the Holders, segregated from other funds of such Subsidiary Guarantor, and shall, forthwith upon receipt by such Subsidiary Guarantor, be turned over to the Trustee in the exact form received by such Subsidiary Guarantor (duly indorsed by such Subsidiary Guarantor to the Trustee, if required), to be applied against the Obligations.

SECTION 10.5. Execution and Delivery of Subsidiary Guarantee. To evidence its Subsidiary Guarantee set forth inSection 10.1, each Subsidiary Guarantor hereby agrees that a notation of such Subsidiary Guarantee substantially in the form included in Exhibit B shall be endorsed by an Officer of such Subsidiary Guarantor on each Note authenticated and delivered by the Trustee and that this Indenture shall be executed on behalf of such Subsidiary Guarantor by an Officer.

Each Subsidiary Guarantor hereby agrees that its Subsidiary Guarantee set forth inSection 10.1 shall remain in full force and effect notwithstanding any failure to endorse on each Note a notation of such Subsidiary Guarantee.

If an Officer whose signature is on this Indenture or on the Subsidiary Guarantee no longer holds that office at the time the Trustee authenticates the Note on which a Subsidiary Guarantee is endorsed, the Subsidiary Guarantee shall be valid nevertheless.

The delivery of any Note by the Trustee, after the authentication thereof hereunder, shall constitute due delivery of the Subsidiary Guarantee set forth in this Indenture on behalf of the Subsidiary Guarantors.

ARTICLE XI

Miscellaneous

SECTION 11.1. Trust Indenture Act Controls. If any provision of this Indenture limits, qualifies or conflicts with another provision which is required to be included in this Indenture by the TIA, the provision required by the TIA shall control.

SECTION 11.2. Notices. Any notice or communication shall be in writing and delivered in person or mailed by first-class mail addressed as follows:

if to the Company:

Cimarex Energy Co.
1700 Lincoln Street, Suite 1800
Denver, Colorado 80203
Attention: Paul Korus
Facsimile No.: (303) 295-3494

if to the Trustee:

U.S. Bank National Association
950 17th Street, 12th Floor
Denver, Colorado 80202
Attention: Corporate Trust Services
Facsimile No.: (303) 585-6865

The Company or the Trustee by notice to the other may designate additional or different addresses for subsequent notices or communications.

Any notice or communication mailed to a Holder shall be mailed to the Holder at the Holder's address as it appears on the Note Register and shall be sufficiently given if so mailed within the time prescribed.

Failure to mail a notice or communication to a Holder or any defect in it shall not affect its sufficiency with respect to other Holders. If a notice or communication is mailed in the manner provided above, it is duly given, whether or not the addressee receives it.

Where this Indenture provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent to the validity of any action taken in reliance upon such waiver.

In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification as shall be made with the approval of the Trustee shall constitute a sufficient notification for every purpose hereunder.

SECTION 11.3. Communication by Holders with other Holders. Holders may communicate pursuant to TIA § 312(b) with other Holders with respect to their rights under this Indenture or the Notes. The Company, the Trustee, the Registrar and anyone else shall have the protection of TIA § 312(c).

SECTION 11.4. Certificate and Opinion as to Conditions Precedent. Upon any request or application by the Company to the Trustee to take or refrain from taking any action under this

Indenture, except upon the initial issuance of Notes hereunder, the Company shall furnish to the Trustee:

(1) an Officers' Certificate in form and substance reasonably satisfactory to the Trustee stating that, in the opinion of the signers, all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with; and

(2) an Opinion of Counsel in form and substance reasonably satisfactory to the Trustee stating that, in the opinion of such counsel, all such conditions precedent have been complied with.

SECTION 11.5. Statements Required in Certificate or Opinion. Each certificate or opinion with respect to compliance with a covenant or condition provided for in this Indenture shall include:

(1) a statement that the individual making such certificate or opinion has read such covenant or condition;

(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and

(4) a statement as to whether or not, in the opinion of such individual, such covenant or condition has been complied with.

In giving such Opinion of Counsel, counsel may rely as to factual matters on an Officers' Certificate or on certificates of public officials.

SECTION 11.6. When Notes Disregarded. In determining whether the Holders of the required principal amount of Notes have concurred in any direction, waiver or consent, Notes owned by the Company or by any of its Affiliates (except that, for the purpose of determining whether the Trustee shall be protected in relying on any such direction, waiver or consent, only Notes which a Responsible Officer of the Trustee actually knows are so owned) shall be so disregarded. Also, subject to the foregoing, only Notes outstanding at the time shall be considered in any such determination.

SECTION 11.7. Rules by Trustee, Paying Agent and Registrar. The Trustee may make reasonable rules for action by, or a meeting of, Holders. The Registrar and the Paying Agent may make reasonable rules for their functions.

SECTION 11.8. Legal Holidays. A "Legal Holiday" is a Saturday, a Sunday or other day on which commercial banking institutions are authorized or required to be closed in New York City. If a payment date is a Legal Holiday, payment shall be made on the next succeeding day that is not a Legal Holiday, and no interest shall accrue for the intervening period. If a regular record date is a Legal Holiday, the record date shall not be affected.

SECTION 11.9. Governing Law. This Indenture, the Subsidiary Guarantees and the Notes shall be governed by, and construed in accordance with, the laws of the State of New York.

SECTION 11.10. No Recourse Against Others. No director, officer, employee, manager, member, partner, incorporator or stockholder of the Company or any Subsidiary Guarantor, as such, shall have any liability for any obligations of the Company or any Subsidiary Guarantor under the Notes, this Indenture or the Subsidiary Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. By accepting a Note, each Holder waives and releases all such liability. The waiver and release shall be part of the consideration for the issuance of the Notes.

SECTION 11.11. Successors. All agreements of the Company in this Indenture and the Notes shall bind their respective successors. All agreements of the Trustee in this Indenture shall bind its successors.

SECTION 11.12. Multiple Originals. The parties may sign any number of copies of this Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. One signed copy is enough to prove this Indenture.

SECTION 11.13. Variable Provisions. The Company initially appoints the Trustee as Paying Agent and Registrar and custodian with respect to any Global Notes.

SECTION 11.14. Table of Contents; Headings. The table of contents, cross-reference sheet and headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not intended to be considered a part hereof and shall not modify or restrict any of the terms or provisions hereof.

[Remainder of page left intentionally blank.]

IN WITNESS WHEREOF, the parties have caused this Indenture to be duly executed as of the date first written above.

		CIMAREX ENERGY CO.
		By:	Name: Title:
		[SUBSIDIARY GUARANTOR]
		By:	Name: Title:
		[SUBSIDIARY GUARANTOR]
		By:	Name: Title:
		[ ], as Trustee
		By:	Name: Title:

EXHIBIT A

[FORM OF FACE OF GLOBAL NOTE]

[Depositary Legend, if applicable]

A-1


No. [ ]	Principal Amount $ [ ], as revised by the Schedule of Increases and Decreases in the Global Note attached hereto
	CUSIP NO.

CIMAREX ENERGY CO.
[ ] Senior Note due 2017

Cimarex Energy Co., a Delaware corporation, promises to pay to Cede & Co., or registered assigns, the principal sum of [ ] Dollars, as revised by the Schedule of Increases and Decreases in the Global Note attached hereto, on April [ ], 2017.

Interest Payment Dates: [ ] and [ ], commencing [ ] [ ], 20[ ].

Record Dates: [ ] and [ ].

Additional provisions of this Note are set forth on the other side of this Note.

		CIMAREX ENERGY CO.
		By:
			Name: Title:
		By:
			Name: Title:

TRUSTEE'S CERTIFICATE OF AUTHENTICATION
Dated:
[TRUSTEE'S NAME],
as Trustee, certifies that this is one of the Notes referred to in the Indenture.
By:
	Authorized Signatory

A-2

[FORM OF REVERSE SIDE OF GLOBAL NOTE]
[ ]% Senior Note due 2017

1. Interest

Cimarex Energy Co., a Delaware corporation (such corporation, and its successors and assigns under the Indenture hereinafter referred to, being herein called the "Company"), promises to pay interest on the principal amount of this Note at the rate per annum shown above.

The Company shall pay interest semiannually on [ ] and [ ] of each year. Interest on the Notes shall accrue from the most recent date to which interest has been paid on the Notes or, if no interest has been paid, from [ ], 2007. The Company shall pay interest on overdue principal or premium, if any (plus interest on overdue installments of interest to the extent lawful), at the rate borne by the Notes to the extent lawful. Interest shall be computed on the basis of a 360-day year comprised of twelve 30-day months.

2. Method of Payment

By no later than 10:00 a.m. (New York City time) on the date on which any principal of (premium, if any) or interest on any Note is due and payable, the Company shall irrevocably deposit with the Trustee or the Paying Agent money sufficient to pay such principal, premium, if any, or interest. The Company shall pay interest (except Defaulted Interest) to the Persons who are registered Holders at the close of business on the [ ] and [ ] next preceding the interest payment date even if Notes are cancelled or repurchased after the record date and on or before the interest payment date. Holders must surrender Notes to a Paying Agent to collect principal payments. The Company shall pay principal, premium, if any, and interest in money of the United States that at the time of payment is legal tender for payment of public and private debts. Payments in respect of Notes represented by a Global Note (including principal, premium, if any, and interest) shall be made by the transfer of immediately available funds to the accounts specified by the Depositary. The Company shall make all payments in respect of a Definitive Note (including principal, premium, if any, and interest) by mailing a check to the registered address of each Holder thereof as such address shall appear on the in the Registrar's books;provided,however, that payments on the Notes represented by Definitive Notes may also be made, in the case of a Holder of at least $1,000,000 aggregate principal amount of Notes represented by Definitive Notes, by wire transfer to a U.S. dollar account maintained by the payee with a bank in the United States if such Holder elects payment by wire transfer by giving written notice to the Trustee or the Paying Agent to such effect designating such account no later than 15 days immediately preceding the relevant due date for payment (or such other date as the Trustee may accept).

3. Paying Agent and Registrar

Initially, [ ], the trustee under the Indenture ("Trustee"), shall act as Paying Agent and Registrar. The Company may appoint and change any Paying Agent or Registrar without notice to any Holder. The Company or any Wholly Owned Subsidiary that is a Domestic Subsidiary may act as Paying Agent or Registrar.

4. Indenture

The Company issued the Notes under an Indenture dated as of April [ ], 2007 (as it may be amended or supplemented from time to time in accordance with the terms thereof, the "Indenture"), among the Company, the Subsidiary Guarantors and the Trustee. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15U.S.C. §§ 77aaa-77bbbb) as in effect from time to time (the "Act"). Capitalized terms used

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herein and not defined herein have the meanings ascribed thereto in the Indenture. The Notes are subject to all such terms, and Holders are referred to the Indenture and the Act for a statement of those terms. In the event of any inconsistency between the terms of this Note and the terms of the Indenture, the terms of the Indenture shall control.

The Notes are general unsecured, senior obligations of the Company. The aggregate principal amount of Notes which may be authenticated and delivered under the Indenture is unlimited. This Note is one of the [ ]% Senior Notes due 2017 referred to in the Indenture. The Notes include (i) $300,000,000 aggregate principal amount of the Company's [ ]% Senior Notes due 2017 issued under the Indenture on April [ ], 2007 and registered under the Securities Act (the "Initial Notes"), and (ii) if and when issued, an unlimited principal amount of additional [ ]% Senior Notes due 2017 that may be issued from time to time, under the Indenture, subsequent to April [ ], 2007 in a registered offering of the Company (the "Additional Notes" and together with the Initial Notes, the "Notes"). The Initial Notes and Additional Notes are treated as a single class of securities under the Indenture. The Indenture imposes, among other things, certain limitations on the Incurrence of Indebtedness by the Company and its Subsidiaries, the payment of dividends and other distributions on the Capital Stock of the Company and its Subsidiaries, the purchase or redemption of Capital Stock of the Company and Capital Stock of such Subsidiaries, certain purchases or redemptions of Subordinated Obligations, the sale or transfer of assets and Capital Stock of Subsidiaries, certain Sale/Leaseback Transactions involving the Company or any Restricted Subsidiary, the incurrence of certain Liens, transactions with Affiliates, mergers and consolidations, payments for consent, the business activities and investments of the Company and its Subsidiaries and the sale of Capital Stock of Restricted Subsidiaries,provided,however, certain of such limitations shall no longer be in effect if the Notes attain an Investment Grade Rating from both Rating Agencies. In addition, the Indenture limits the ability of the Company and its Subsidiaries to enter into agreements that restrict distributions and dividends from Subsidiaries and requires the Company to make available SEC information to the Holders as well as requiring certain Restricted Subsidiaries to guarantee the obligations under the Notes and the Indenture.

5. Redemption

Except as described below, the Notes are not redeemable until [ ], 2012. On and after [ ], 2012, the Company may redeem all or, from time to time, a part of the Notes upon not less than 30 nor more than 60 days' notice, at the following redemption prices (expressed as a percentage of principal amount) plus accrued and unpaid interest on the Notes, if any, to the applicable Redemption Date (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date), if redeemed during the twelve-month period beginning on [ ] of the years indicated below:

Year		Percentage
2012		[ ]%
2013		[ ]%
2014		[ ]%
2015 and thereafter		100.000%

Prior to [ ], 2010, the Company may on any one or more occasions redeem up to 35% of the original principal amount of the Notes (including the original principal amount of any Additional Notes) with the Net Cash Proceeds of one or more Equity Offerings at a redemption price of [ ]% of the principal amount thereof, plus accrued and unpaid interest, if any, to the Redemption

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Date (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date);provided that:

(1) at least 65% of the original principal amount of the Notes (including the original principal amount of any Additional Notes) remains outstanding immediately after each such redemption; and

(2) the redemption occurs within 60 days after the closing of such Equity Offering.

If the optional Redemption Date is on or after an interest record date and on or before the related interest payment date, the accrued and unpaid interest, if any, shall be paid to the Person in whose name the Note is registered at the close of business, on such record date, and no additional interest shall be payable to Holders whose Notes shall be subject to redemption by the Company.

In the case of any partial redemption, selection of the Notes for redemption will be made by the Trustee in compliance with the requirements of the principal national securities exchange, if any, on which the Notes are listed or, if the Notes are not listed, then on a pro rata basis, by lot or by such other method as the Trustee in its sole discretion will deem to be fair and appropriate, although no Note of $2,000 in original principal amount or less will be redeemed in part. If any Note is to be redeemed in part only, the notice of redemption relating to such Note will state the portion of the principal amount thereof to be redeemed. A new Note in principal amount equal to the unredeemed portion thereof will be issued in the name of the Holder thereof upon cancellation of the original Note.

In addition, at any time prior to [ ], 2012, the Notes may be redeemed, in whole but not in part, at the option of the Company upon not less than 30 nor more than 60 days' prior notice mailed by first-class mail to each Holder at its registered address, at a redemption price equal to 100% of the principal amount of the Notes redeemed plus the Applicable Premium plus accrued and unpaid interest, if any, to the Redemption Date (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date).

"Applicable Premium" means, with respect to a Note on any date of redemption prior to [ ], 2012, the greater of (1) [ ]% of the principal amount of such Note and (2) the excess of (a) the present value at such time of (i) the redemption price of such Note on [ ], 2012 (such redemption price being described under the first paragraph of thisSection 5) plus (ii) all required interest payments due on such Note through [ ], 2012 (but excluding accrued and unpaid interest to the Redemption Date), computed using a discount rate equal to the Treasury Rate plus [ ] basis points, over (b) the then-outstanding principal amount of such Note.

"Treasury Rate" means the yield to maturity at the time of computation of United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two business days prior to the Redemption Date (or, if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from the Redemption Date to [ ], 2012;provided,however, that if the period from the Redemption Date to [ ], 2012 is not equal to the constant maturity of a United States Treasury security for which a weekly average yield is given, the Treasury Rate shall be obtained by linear interpolation (calculated to the nearest one-twelfth of a year) from the weekly average yields of United States Treasury securities for which such yields are given, except that if the period from the Redemption Date to [ ], 2012 is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year shall be used.

The Company is not required to make mandatory redemption payments or sinking fund payments with respect to the Notes.

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The Company and its Subsidiaries and Affiliates may at any time and from time to time acquire Notes through tender offers, open market purchases, negotiated transactions or otherwise, in accordance with applicable securities laws, so long as such acquisition does not otherwise violate the terms of the Indenture.

6. Put Provisions

If a Change of Control occurs, unless the Company has exercised its right to redeem all of the Notes as described under Section 5 herein and subject to the terms of the Indenture, each Holder will have the right to require the Company to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of such Holder's Notes at a purchase price in cash equal to 101% of the principal amount of such Notes plus accrued and unpaid interest, if any, to the date of purchase (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date) as provided in, and subject to the terms of, the Indenture. The Company shall be required to make an Asset Disposition Offer in certain circumstances described in the Indenture.

7. Denominations; Transfer; Exchange

The Notes are in registered form without coupons in denominations of principal amount of $2,000 or an integral multiple of $1,000 in excess thereof. A Holder may transfer or exchange Notes in accordance with the Indenture. The Registrar may require a Holder, among other things, to furnish appropriate endorsements or transfer documents and to pay any taxes and fees required by law or permitted by the Indenture. The Registrar need not register the transfer of or exchange any Note (1) for a period beginning 15 Business Days before the mailing of a notice of a redemption of Notes to the Holders and ending at the close of business on the day of such mailing or (2) selected for redemption.

8. Persons Deemed Owners

The registered Holder of this Note may be treated as the owner of it for all purposes.

9. Unclaimed Money

If money for the payment of the principal of or premium, if any, or interest remains unclaimed for two years, the Trustee or Paying Agent shall pay the money back to the Company at its written request unless an abandoned property law designates another person. After any such payment, Holders entitled to the money must look only to the Company and not to the Trustee or the Paying Agent for payment.

10. Defeasance

Subject to certain conditions set forth in the Indenture, the Company at any time may terminate some or all of its obligations under the Notes and the Indenture if the Company deposits with the Trustee money or U.S. Government Obligations for the payment of principal, premium, if any, and interest on the Notes to maturity.

11. Amendment, Waiver

Subject to certain exceptions set forth in the Indenture, (i) the Indenture, the Subsidiary Guarantees, and the Notes may be amended with the written consent of the Holders of at least a majority in principal amount of the then outstanding Notes (including, without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes) and (ii) subject to certain exceptions, any Default or Event of Default (other than with respect to nonpayment) or noncompliance with any provision may be waived with the written consent of the Holders of a majority in principal amount of the then outstanding Notes (including, without limitation, waivers and consents

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obtained in connection with a purchase of, or tender offer or exchange offer for, Notes). Subject to certain exceptions set forth in the Indenture, without the consent of any Holder, the Company, the Subsidiary Guarantors and the Trustee may amend or supplement the Indenture or the Notes to cure any ambiguity, omission, defect or inconsistency, to comply withArticle IV orArticle X of the Indenture in respect of the assumption by a successor of the obligations of the Company or any Subsidiary Guarantor under the Indenture, to provide for uncertificated Notes in addition to or in place of certificated Notes, to add Guarantees with respect to the Notes or release a Subsidiary Guarantor from its obligations under its Subsidiary Guarantee upon its designation as an Unrestricted Subsidiary or otherwise in accordance with the Indenture, to secure the Notes, to add to the covenants of the Company, any Subsidiary Guarantor or other obligor under the Indenture, this Note or the Subsidiary Guarantees for the benefit of the Holders or that would surrender any right or power conferred upon the Company, any Subsidiary Guarantor or any other obligor or that does not adversely affect the legal rights under the Indenture of any such Holder, to comply with any requirement of the SEC in order to effect or maintain the qualification of the Indenture under the TIA, to provide for the appointment of a successor trustee; to provide for the issuance of Additional Notes in accordance with the Indenture, to comply with the rules of any applicable securities depositary or to conform the text of the Indenture, the Notes or the Subsidiary Guarantees to any provisions of the section in the Registration Statement (333-[ ]) on Form S-3 of the Company, filed with the SEC on [ ], 2007, entitled "Description of Notes.".

12. Defaults and Remedies

Under the Indenture, Events of Default include (each of which are more specifically described in the Indenture) (i) default for 30 days in payment of interest when due on the Notes; (ii) default in payment of principal or premium, if any, on the Notes at Stated Maturity, upon required repurchase or upon optional redemption pursuant to paragraph 5 hereof, upon declaration or otherwise; (iii) the failure by the Company or any Subsidiary Guarantor to comply with its obligations under Article IV of the Indenture; (iv) failure by the Company to comply for 30 days after written notice with any of their obligations under the covenants described under Sections 3.3 through 3.14 of the Indenture; (v) (a) the failure by the Company to comply for 60 days after written notice with their other agreements contained in the Indenture or under the Notes (other than those referred to in (i), (ii), (iii) or (iv) above or in (v)(b) below), or (b) a failure by the Company to comply for 90 days after notice with Section 3.2 of the Indenture; (vi) default under any mortgage, indenture or instrument under which there is issued or by which there is secured or evidenced any Indebtedness for money borrowed by the Company or any of its Restricted Subsidiaries (or the payment of which is guaranteed by the Company or any of its Restricted Subsidiaries), other than Indebtedness owed to the Company or a Restricted Subsidiary, whether such Indebtedness or guarantee now exists, or is created after the date of the Indenture, which default (a) is caused by a failure to pay principal of, or interest or premium, if any, on such Indebtedness prior to the expiration of the grace period provided in such Indebtedness ("payment default") or (b) results in the acceleration of such Indebtedness prior to its maturity (the "cross acceleration provision") and, in each case, the principal amount of any such outstanding Indebtedness, together with the principal amount of any other such Indebtedness under which there is an outstanding uncured payment of default, a payment default or the maturity of which has been and remains so accelerated, aggregates $15.0 million or more; (vii) certain events of bankruptcy, insolvency or reorganization of the Company or a Significant Subsidiary or group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary (the "bankruptcy provisions"); (viii) failure by the Company or any Significant Subsidiary or group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary to pay final judgments aggregating in excess of $15.0 million (net of any amounts that a reputable and creditworthy insurance company has

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acknowledged liability for in writing), which judgments are not paid, discharged, waived or stayed for a period of 60 days after such judgment becomes final and no longer subject to appeal (the "judgment default provision"); or (ix) any Subsidiary Guarantee of a Significant Subsidiary or group of Restricted Subsidiaries that, taken together (as of the latest audited consolidated financial statements for the Company and its Restricted Subsidiaries), would constitute a Significant Subsidiary ceases to be in full force and effect (except as contemplated by the terms of the Indenture) or is declared null and void in a judicial proceeding or any Subsidiary Guarantor that is a Significant Subsidiary or group of Subsidiary Guarantors that, taken together (as of the last audited consolidated financial statements for the Company and its Restricted Subsidiaries), denies or disaffirms its obligations under the Indenture or its Subsidiary Guarantee. However, a default under clauses (iv) and (v) will not constitute an Event of Default until the Trustee or the Holders of at least 25% in principal amount of the outstanding Notes notify the Company of the default and the Company does not cure such default within the time specified in clauses (iv) and (v) hereof after receipt of such notice.

If an Event of Default (other than an Event of Default described in (vii) hereof) occurs and is continuing, the Trustee by notice to the Company or the Holders of at least 25% in principal amount of the outstanding Notes may declare all the Notes to be due and payable immediately. If an Event of Default described in (vii) hereof occurs and is continuing, the principal of, premium, if any, and accrued and unpaid interest on all the Notes will become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holders. Subject to certain conditions contained in the Indenture, if the Notes are accelerated as a result of an Event of Default described in (vi) above, the declaration of acceleration shall be automatically annulled if the default triggering such Event of Default is remedied, cured or waived within 20 days after written notice of acceleration is received by the Company and the other conditions to such annulment are satisfied.

Holders may not enforce the Indenture or the Notes except as provided in the Indenture. The Trustee may refuse to enforce the Indenture or the Notes unless it receives indemnity or security satisfactory to it. Subject to certain limitations, Holders of a majority in principal amount of the Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders notice of any continuing Default or Event of Default (except a Default or Event of Default in payment of principal, premium, if any, or interest) if it determines that withholding notice is in their interest.

13. Trustee Dealings with the Company

Subject to certain limitations set forth in the Indenture, the Trustee under the Indenture, in its individual or any other capacity, may become the owner or pledgee of Notes and may otherwise deal with and collect obligations owed to it by the Company or its Affiliates and may otherwise deal with the Company or its Affiliates with the same rights it would have if it were not Trustee.

14. No Recourse Against Others

A director, officer, employee, manager, member, partner, incorporator or stockholder, as such, of the Company or any Subsidiary Guarantor shall not have any liability for any obligations of the Company of any Subsidiary Guarantor under the Notes, the Indenture or the Subsidiary Guarantees or for any claim based on, in respect of or by reason of such obligations or their creation. By accepting a Note, each Holder waives and releases all such liability. The waiver and release are part of the consideration for the issue of the Notes.

15. Authentication

This Note shall not be valid until an authorized signatory of the Trustee (or an authenticating agent acting on its behalf) manually signs the certificate of authentication on the other side of this Note.

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16. Abbreviations

Customary abbreviations may be used in the name of a Holder or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entirety), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian) and U/G/M/A (=Uniform Gift to Minors Act).

17. CUSIP Numbers

Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures the Company has caused CUSIP numbers to be printed on the Notes. No representation is made as to the accuracy of such numbers as printed on the Notes and reliance may be placed only on the other identification numbers placed thereon.

18. Defined Terms

As used in this Note, terms defined in the Indenture are used herein as therein defined.

19. Governing Law

This Note shall be governed by, and construed in accordance with, the laws of the State of New York.

The Company shall furnish to any Holder upon written request and without charge to the Holder a copy of the Indenture, which has in it the text of this Note in larger type. Requests may be made to:

Cimarex Energy Co.
1700 Lincoln Street, Suite 1800
Denver, Colorado 80203
Attention: Corporate Secretary
Facsimile No.: (303) [ ]

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ASSIGNMENT FORM

To assign this Note, fill in the form below:

I or we assign and transfer this Note to

(Print or type assignee's name, address and zip code)

(Insert assignee's soc. sec. or tax I.D. No.)

and irrevocably appoint agent to transfer this Note on the books of the Company. The agent may substitute another to act for him.

Date: Your Signature:

Signature Guarantee:
(Signature must be guaranteed)

Sign exactly as your name appears on the other side of this Note.

The signature(s) should be guaranteed by an eligible guarantor institution (banks, stockbrokers, savings and loan associations and credit unions with membership in an approved signature guarantee medallion program), pursuant to S.E.C. Rule 17Ad-15.

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[TO BE ATTACHED TO GLOBAL NOTES]

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL NOTE

The following increases or decreases in this Global Note have been made:

Date of Exchange		Amount of decrease in Principal Amount of this Global Note		Amount of increase in Principal Amount of this Global Note		Principal Amount of this Global Note following such decrease or increase		Signature of authorized signatory of Trustee or Notes Custodian

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OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have this Note purchased by the Company pursuant toSection 3.8 or 3.10 of the Indenture, check the box:

If you want to elect to have only part of this Note purchased by the Company pursuant toSection 3.8 or 3.10 of the Indenture, state the amount in principal amount (must be denominations of $2,000 or an integral multiple of $1,000 in excess thereof): $

Date: Your Signature:
(Sign exactly as your name appears on the other side of the Note)

Signature Guarantee:
(Signature must be guaranteed)

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EXHIBIT B

FORM OF NOTATION OF GUARANTEE

For value received, each Subsidiary Guarantor (which term includes any successor Person under the Indenture) has, jointly and severally, unconditionally guaranteed, to the extent set forth in the Indenture and subject to the provisions in the Indenture dated as of April [ ], 2007 (the "Indenture") among Cimarex Energy Co., the Subsidiary Guarantors listed on the signature pages thereto and [ ], as trustee (the "Trustee"), (a) the full and punctual payment when due, whether at maturity, by acceleration, by redemption or otherwise, of the principal of, premium, if any, and interest on the Notes and all other obligations and liabilities of the Company to the Holders or the Trustee under the Indenture (including without limitation interest accruing after the filing of any petition in bankruptcy, or the commencement of any insolvency, reorganization or like proceedings, relating to the Company or any Subsidiary Guarantor whether or not a claim for post-filing or post-petition interest is allowed in such proceeding). The obligations of the Subsidiary Guarantors to the Holders and to the Trustee pursuant to the Subsidiary Guarantee and the Indenture are expressly set forth inArticle X of the Indenture and reference is hereby made to the Indenture for the precise terms of the Subsidiary Guarantee, which terms are incorporated herein by reference.

		[Guarantor]
		By:	Name: Title:

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EXHIBIT C

FORM OF INDENTURE SUPPLEMENT TO ADD SUBSIDIARY GUARANTORS TO GUARANTEE NOTES

This Supplemental Indenture and Subsidiary Guarantee, dated as of [ ], 20 (this "Supplemental Indenture" or "Guarantee"), among [name of future Subsidiary Guarantor] (the "New Subsidiary Guarantor"), Cimarex Energy Co. (together with its successors and assigns, the "Company"), each other existing Subsidiary Guarantor under the Indenture referred to below (the "Existing Subsidiary Guarantors"), and [ ], as Trustee under the Indenture referred to below.

W I T N E S S E T H:

WHEREAS, the Company, the Existing Subsidiary Guarantors and the Trustee have heretofore executed and delivered an Indenture, dated as of April [ ], 2007 (as amended, supplemented, waived or otherwise modified, the "Indenture"), providing for the issuance of an unlimited aggregate principal amount of [ ]% Senior Notes due 2017 of the Company (the "Notes");

WHEREAS,Section 3.11 of the Indenture provides that the Company is required to cause each Restricted Subsidiary (other than a Foreign Subsidiary) created or acquired by the Company or one or more of its Restricted Subsidiaries that Guarantees the payment of any Indebtedness of the Company under the Senior Secured Credit Agreement to execute and deliver to the Trustee a Supplemental Indenture and Subsidiary Guarantee pursuant to which such Subsidiary Guarantor shall unconditionally Guarantee, on a joint and several basis, the full and prompt payment of the principal of, premium, if any and interest on the Notes on a senior unsecured basis and all other obligations under the Indenture on an unsecured basis; and

WHEREAS, pursuant toSection 9.1 of the Indenture, the Trustee, the Company and the Existing Subsidiary Guarantors are authorized to execute and deliver this Supplemental Indenture to amend the Indenture to provide for the Subsidiary Guarantee by the New Subsidiary Guarantor, without the consent of any Holder;

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the New Subsidiary Guarantor, the Existing Subsidiary Guarantors, the Company and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders as follows:

ARTICLE I

Definitions SECTION 1.1Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined, except that the term "Holders" in this Guarantee shall refer to the term "Holders" as defined in the Indenture and the Trustee acting on behalf or for the benefit of such Holders. The words "herein," "hereof" and "hereby" and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.

ARTICLE II

Agreement to be Bound; Guarantee SECTION 2.1Agreement to be Bound. The New Subsidiary Guarantor hereby becomes a party to the Indenture as a Subsidiary Guarantor and as such shall have all of the rights and be subject to all of the obligations and agreements of a Subsidiary Guarantor under the Indenture. The New Subsidiary Guarantor agrees to be bound by all of the provisions of the Indenture applicable to a Subsidiary Guarantor and to perform all of the obligations and agreements of a Subsidiary Guarantor under the Indenture.

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SECTION 2.2Guarantee. The New Subsidiary Guarantor hereby fully, unconditionally and irrevocably guarantees, as primary obligor and not merely as a surety, jointly and severally with each other Subsidiary Guarantor, to each Holder and the Trustee, the full and punctual payment when due, whether at maturity, by acceleration, by redemption or otherwise, of the Obligations pursuant toArticle X of the Indenture.

ARTICLE III

Miscellaneous SECTION 3.1Notices. All notices and other communications to the New Subsidiary Guarantor shall be given as provided in the Indenture to the New Subsidiary Guarantor, at its address set forth below, with a copy to the Company as provided in the Indenture for notices to the Company.

[Name of future Subsidiary Guarantor]

[ ]

[Attention:]

[Facsimile No.: ( ) —]

SECTION 3.2Parties. Nothing expressed or mentioned herein is intended or shall be construed to give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained.

SECTION 3.3Governing Law. This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New York.

SECTION 3.4Severability Clause. In case any provision in this Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability.

SECTION 3.5Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder heretofore or hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture.

SECTION 3.6Counterparts. The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of which together shall constitute one and the same agreement.

SECTION 3.7Headings. The headings of the Articles and the sections in this Guarantee are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.

		[NEW SUBSIDIARY GUARANTOR], as a Subsidiary Guarantor
		By:	Name: Title:
		[ ], as Trustee
		By:	Name: Title:
		CIMAREX ENERGY CO.
		By:	Name: Title:
		[EXISTING SUBSIDIARY GUARANTORS],
		By:	Name: Title:

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QuickLinks

EXHIBIT 4.4

CROSS-REFERENCE TABLE
TABLE OF CONTENTS
EXHIBITS
ARTICLE I Definitions and Incorporation by Reference
ARTICLE II The Notes
ARTICLE III Covenants
ARTICLE IV Successor Company and Successor Subsidiary Guarantor
ARTICLE V Redemption of Notes
ARTICLE VI Defaults and Remedies
ARTICLE VII Trustee
ARTICLE VIII Discharge of Indenture; Defeasance
ARTICLE IX Amendments
ARTICLE X Subsidiary Guarantees
ARTICLE XI Miscellaneous

EXHIBIT A

[FORM OF FACE OF GLOBAL NOTE] [Depositary Legend, if applicable]
[FORM OF REVERSE SIDE OF GLOBAL NOTE] [ ]% Senior Note due 2017

EXHIBIT B

FORM OF NOTATION OF GUARANTEE

EXHIBIT C

FORM OF INDENTURE SUPPLEMENT TO ADD SUBSIDIARY GUARANTORS TO GUARANTEE NOTES
W I T N E S S E T H

Columbus Energy Inactive S-3ASRAutomatic shelf registration