Key Energy Group, Inc.

                          $200,000,000 Principal Amount
                                       of
                   5% Convertible Subordinated Notes due 2004


     
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                                    Indenture


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                         Dated as of September 25, 1997

     
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                     American Stock Transfer & Trust Company


                                     Trustee

     
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                                TABLE OF CONTENTS


                                                                          Page

                                    ARTICLE I

                          DEFINITIONS AND INCORPORATION
                                  BY REFERENCE
         Section 1.1.  Definitions..........................................  1
         Section 1.2   Other Definitions....................................  7
         Section 1.3   Incorporation by Reference of Trust Indenture Act....  8
         Section 1.4   Rules of Construction................................  8

                                   ARTICLE II
                                 THE SECURITIES
         Section 2.1.  Form and Dating; Securities in Global Form...........  9
         Section 2.2.  Execution and Authentication......................... 10
         Section 2.3.  Registrar, Paying Agent, Depository and Securities 
                       Custodian............................................ 10
         Section 2.4.  Paying Agent to Hold Money in Trust.................. 11
         Section 2.5.  Holder Lists......................................... 11
         Section 2.6   Transfer and Exchange................................ 12
         Section 2.7   Replacement Securities............................... 18
         Section 2.8   Outstanding Securities............................... 18
         Section 2.9   Treasury Securities.................................. 19
         Section 2.10  Temporary Securities................................. 19
         Section 2.11  Cancellation......................................... 19
         Section 2.12  Defaulted Interest................................... 19

                                   ARTICLE III
                                   REDEMPTION
         Section 3.1  Notices to Trustee.................................... 20
         Section 3.2  Selection of Securities to be Redeemed................ 20
         Section 3.3  Notice of Redemption.................................. 21
         Section 3.4  Effect of Notice of Redemption........................ 21
         Section 3.5  Deposit of Redemption Price........................... 22
         Section 3.6  Securities Redeemed in Part........................... 22
         Section 3.7  Optional Redemption................................... 22
                                   ARTICLE IV
                                    COVENANTS
         Section 4.1   Payment of Securities................................ 23

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         Section 4.2   Maintenance of Office or Agency...................... 23
         Section 4.3   SEC Reports.......................................... 24
         Section 4.4   Compliance Certificate............................... 24
         Section 4.5   Compliance with Laws; Taxes.......................... 25
         Section 4.6   Stay, Extension and Usury Laws....................... 25
         Section 4.7   Corporate Existence.................................. 26
         Section 4.8   Liquidation.......................................... 26
         Section 4.9   Limitation on Dispositions of Assets................. 27
         Section 4.10  Change in Control.................................... 27
         Section 4.11  Rule 144A Information Requirement.................... 28

                                    ARTICLE V
                                   SUCCESSORS
         Section 5.1   When the Company May Merge, etc...................... 28
         Section 5.2   Successor Corporation Substituted.................... 29

                                   ARTICLE VI
                              DEFAULTS AND REMEDIES
         Section 6.1   Events of Default.................................... 29
         Section 6.2   Acceleration........................................ 30
         Section 6.3   Other Remedies....................................... 31
         Section 6.4   Waiver of Past Defaults.............................. 31
         Section 6.5   Control by Majority.................................. 31
         Section 6.6   Limitation on Suits.................................. 32
         Section 6.7   Rights of Holders to Receive Payment................. 32
         Section 6.8   Collection Suit by Trustee........................... 32
         Section 6.9   Trustee May File Proofs of Claim..................... 33
         Section 6.10  Priorities........................................... 33
         Section 6.11  Undertaking for Costs................................ 34

                                   ARTICLE VII
                                     TRUSTEE
         Section 7.1   Duties of a Trustee.................................. 34
         Section 7.2   Rights of Trustee.................................... 35
         Section 7.3   Individual Rights of Trustee......................... 36
         Section 7.4   Trustee's Disclaimer................................. 36
         Section 7.5   Notice of Defaults.................................. 36
         Section 7.6   Reports by Trustee to Holders........................ 36

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         Section 7.7   Compensation and Indemnity........................... 37
         Section 7.8   Replacement of Trustee................................ 37
         Section 7.9   Successor Trustee by Merger, etc..................... 38
         Section 7.10  Eligibility; Disqualification........................ 38
         Section 7.11  Preferential Collection of Claims Against Company.... 39
         Section 7.12  No Obligation of the Trustee......................... 39

                                  ARTICLE VIII
                             DISCHARGE OF INDENTURE
         Section 8.1   Termination of Company's Obligation.................. 40
         Section 8.2   Application of Trust Money........................... 41
         Section 8.3   Repayment to Company................................. 41
         Section 8.4   Reinstatement........................................ 42

                                   ARTICLE IX
                                   AMENDMENTS
         Section 9.1   Without Consent of Holders........................... 42
         Section 9.2   With Consent of Holders.............................. 43
         Section 9.3   Compliance with Trust Indenture Act.................. 44
         Section 9.4   Revocation and Effect of Consents.................... 44
         Section 9.5   Notation on or Exchange of Securities................ 44
         Section 9.6   Trustee to Sign Amendments, etc...................... 45

                                    ARTICLE X
                                   CONVERSION
         Section 10.1   Right to Convert.................................... 45
         Section 10.2   Exercise of Conversion Privilege; Issuance of Common 
                        Stock on Conversion; No Adjustment for Interest or 
                        Dividends.  ........................................ 46
         Section 10.3   Cash Payments in Lieu of Fractional Shares.......... 47
         Section 10.4   Conversion Price.................................... 47
         Section 10.5   Adjustment of Conversion Price...................... 48
         Section 10.6   Effect of Reclassification, Consolidation, Merger or 
                        Sale................................................ 51
         Section 10.7   Taxes on Shares Issued.............................. 51
         Section 10.8   Reservation of Shares; Shares to be Fully Paid; 
                        Compliance with Governmental Requirements; Listing of 
                        Common Stock........................................ 52
         Section 10.9   Responsibility of Trustee........................... 52
         Section 10.10  Notice to Holders Before Certain Actions............ 53


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                                   ARTICLE XI
                                  SUBORDINATION
         Section 11.1   Agreement to Subordinate............................ 54
         Section 11.2   Certain Definitions................................. 54
         Section 11.3   Liquidation; Dissolution; Bankruptcy................ 55
         Section 11.4   Company Not to Make Payments with Respect to Securities
                        in Certain Circumstances............................ 55
         Section 11.5   Acceleration of Securities.......................... 56
         Section 11.6   When Distribution Must Be Paid Over................. 56
         Section 11.7   Notice by Company................................... 56
         Section 11.8   Subrogation......................................... 56
         Section 11.9   Relative Rights..................................... 56
         Section 11.10  Subordination May Not Be Impaired by Company........ 57
         Section 11.11  Distribution or Notice to Representative............ 57
         Section 11.12  Rights of Trustee and Paying Agent.................. 57
         Section 11.13  Effectuation of Subordination by Trustee............ 58

                                   ARTICLE XII
                                  MISCELLANEOUS
         Section 12.1   Trust Indenture Act Controls........................ 58
         Section 12.2   Notices............................................. 59
         Section 12.3   Communication to Holders with Other Holders......... 60
         Section 12.4   Certificate and Opinion as to Conditions Precedent.. 60
         Section 12.5   Statements Required in Certificate.................. 60
         Section 12.6   Rules by Trustee and Agents......................... 61
         Section 12.7   Additional Rights of Holders of Transfer Restricted
                          Securities........................................ 61
         Section 12.8   Legal Holidays...................................... 61
         Section 12.9   No Recourse Against Others.......................... 61
         Section 12.10  Duplicate Originals................................. 61
         Section 12.11  Governing Law....................................... 61
         Section 12.12  No Adverse Interpretation of Other Agreements....... 62
         Section 12.13  Successors......................................... 62
         Section 12.14  Severability........................................ 62
         Section 12.15  Counterpart Originals............................... 62
         Section 12.16  Table of Contents, Headings, ....................... 62

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     INDENTURE dated as of September 25, 1997,  among KEY ENERGY GROUP,  INC., a
Maryland  corporation  (the  "Company"),  and AMERICAN  STOCK  TRANSFER &  TRUST
COMPANY, a New York corporation, as trustee (the "Trustee").

     The Company and Trustee  agree as follows for the benefit of each other and
for the equal and ratable benefit of the Holders of the Company's 5% Convertible
Subordinated Notes due 2004 (collectively, the "Securities"):


                                    ARTICLE I

                          DEFINITIONS AND INCORPORATION
                                  BY REFERENCE

     Section 1.1. Definitions.

     "144A  Global Note" means the global note in the form of Exhibit A-1 hereto
deposited  with and  registered in the name of the  Depository,  or its nominee,
that will be issued in a denomination equal to the outstanding  principal amount
of the Notes sold in reliance on Rule 144A.

     "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  specified  Person  means the power to
direct the  management  and  policies  of such Person  directly  or  indirectly,
whether  through the ownership of Voting Stock,  by agreement or otherwise;  and
the terms  "controlling"  and  "controlled"  have  meanings  correlative  to the
foregoing;  provided,  however,  that beneficial ownership of 10% or more of the
Voting Stock of a person shall be deemed control.

    "Applicable  Procedures" means, with respect to any transfer or exchange of
or for beneficial  interests in any Global Note, the rules and procedures of the
Depository, Euroclear and Cedel Bank that apply to such transfer or exchange.

     "Agent' means any  Registrar (as defined in Section 2.3),  Paying Agent (as
defined in Section 2.3) or co-Registrar.

     "Board of  Directors"  means the Board of Directors of the Company,  or any
authorized committee of the Board of Directors.

    "Board  Resolution"  means a  resolution  of the Board of  Directors of the
Company.

     "Business Day" means each Monday, Tuesday,  Wednesday,  Thursday and Friday
that is not a day on which banking institutions in the Borough of Manhattan, New
York, New York are authorized or obligated by law or executive order to close.


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     "Capital  Stock"  means,  with  respect to any Person,  any and all shares,
interests,  participation or other equivalents (however designated) of corporate
stock,  including each class of common stock and preferred  stock of such Person
and any warrants, options or other rights to acquire such stock.

     "Closing  Price" means,  for each Trading Day, the reported last sale price
regular  way or, in case no such  reported  sale  takes  place on such day,  the
average of the reported closing bid and asked prices regular way, in either case
on the New York Stock  Exchange  (if  shares of the Common  Stock are listed for
trading on such  exchange)  or the  American  Stock  Exchange  (if shares of the
Common Stock are listed for trading on such exchange) or, if the Common Stock is
not listed or  admitted  to trading on either such  exchange,  on the  principal
national  securities exchange on which the Common Stock is listed or admitted to
trading  or, if not listed or  admitted  to trading on any  national  securities
exchange, on the National Association of Securities Dealers Automated Quotations
systems  ("NASDAQ")  National Market System  ("NASDAQ/NMS") or, if not listed or
admitted to trading on  NASDAQ/NMS,  on NASDAQ,  or, if the Common  Stock is not
listed or admitted to trading on any national  securities exchange or NASDAQ/NMS
or quoted on NASDAQ,  the  average of the  closing  bid and asked  prices in the
over-the-counter  market as furnished by any National  Association of Securities
Dealers,  Inc.  member firm  selected  from time to time by the Company for that
purpose.

     "Common  Stock"  means,  any stock of any class of the Company  that has no
preference  in respect of  dividends  or of amounts  payable in the event of any
voluntary or involuntary  liquidation,  dissolution or winding up of the Company
and which is not subject to redemption by the Company. Subject to the provisions
of Section 10.6,  however,  shares  issuable on  conversion of Securities  shall
include only shares of the class or classes resulting that have no preference in
respect of  dividends  or of amounts  payable in the event of any  voluntary  or
involuntary liquidation,  dissolution or winding up of the Company and which are
not subject to  redemption  by the Company,  provided  that if at any time there
shall be more than one such resulting  class, the shares of each such class then
so issuable shall be  substantially  in the proportion which the total number of
shares of such  class  resulting  from all such  reclassifications  bears to the
total   number  of  shares  of  all  such  classes   resulting   from  all  such
reclassifications.

     "Consolidated  Net Worth"  with  respect to any Person  means the amount by
which the assets of such Person and its  Subsidiaries  on a  consolidated  basis
exceed the sum of (i) the total  liabilities of such Person and its Subsidiaries
on a consolidated basis, plus (ii) Disqualified  Capital Stock of such Person or
Disqualified Capital Stock of any Subsidiary of such Person issued to any Person
other than such Person or another Wholly Owned Subsidiary of such Person, all as
determined on a consolidated basis and in accordance with GAAP.

     "Conversion Price" has the meaning set forth in Section 10.4.


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     "Corporate  Trust  Office of the  Trustee"  shall be at the  address of the
Trustee  specified in Section 12.2 or such other address as the Trustee may give
by notice to the Company.

     "Current  Market  Price"  means,  for each  share of Common  Stock,  (a) in
respect of a  conversion  of the  principal  of any Notes into cash  pursuant to
Section 10.1, the average of the daily Closing  Prices for the five  consecutive
Trading Days  immediately  preceding  the  conversion  date, or (b) in all other
cases,  on any date,  the  average  of the  daily  Closing  Prices  for the five
consecutive Trading Days selected by the Company commencing not more than twenty
Trading  Days  before,  and ending  not later  than,  the  earlier of the day in
question  and the day  before  the "ex date" with  respect  to the  issuance  or
distribution requiring such computation.

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

     "Definitive  Securities"  means Securities that are in the form of the Note
attached hereto as Exhibit A that do not include the  information  called for by
footnotes 1 and 2 thereof.

     "Depository"  means,  with respect to the Securities  issuable or issued in
whole or in part in global  form,  the Person  specified  in Section  2.3 as the
Depository  with respect to the  Securities,  until a successor  shall have been
appointed  and  become  such  pursuant  to the  applicable  provisions  of  this
Indenture, and, thereafter, "Depository" shall mean or include such successor.

     "Disqualified  Capital Stock" means any Capital Stock that, by its terms or
by the terms of any  security  into which,  at the option of the  holder,  it is
convertible  or  exchangeable,  is,  or upon  the  happening  of an event or the
passage of time would be, required to be redeemed or  repurchased,  including at
the option of the holder,  in whole or in part, or has, or upon the happening of
an event or the passage of time would have, a redemption or similar payment due,
on or before the maturity date of the Securities.

     "ex date" means,  when used with  respect to any issuance of  distribution,
the first date on which the Common Stock trades regular way on an exchange or in
such market without the right to receive such issuance or distribution.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     "Existing Debentures" means the 7% Convertible  Subordinated Debentures Due
2003 issued under that certain  Indenture dated July 3,  1996 among the Company,
the Trustee, and the Subsidiaries.

     "GAAP" means generally accepted  accounting  principles as in effect in the
United States of America as of any date of determination.


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     "Global  Securities" means  individually and collectively,  the 144A Global
Note and the  Regulation  S Global  Note,  issued in  accordance  with the terms
hereof.

     "Group of Persons" means any group of Persons or other  entities  acting in
concert as a  partnership  or other group within the meaning of Section 13(d) of
the Exchange Act.

     "Holder"  means a person in whose  name a  Security  is  registered  in the
records of the Registrar.

     "IAI"  means an  institutional "accredited  investor"  as  defined in Rule
501(a)(1),(2),(3) or (7) under the Securities Act.

     "Indebtedness" means, with respect to any Person, without duplication,  (i)
any indebtedness of such Person for money borrowed or for the deferred  purchase
price of property or services  (other than any such balance that  represents  an
account  payable or any other monetary  obligation to a trade creditor  created,
incurred,  assumed or  guaranteed by such Person in  connection  with  obtaining
goods, materials or services and due within 12 months (or such longer period for
payment as is  customarily  extended by such trade  creditor) of the  incurrence
thereof,  which  account is not overdue by more than 120 days,  according to the
original terms of sale,  unless such account  payable is being contested in good
faith or has otherwise been extended),  (ii) all capitalized lease  obligations,
(iii) any such  indebtedness or obligation  secured by any Lien on the assets of
such Person and (iv) any such  indebtedness  or  obligation of others which such
Person has directly or indirectly guaranteed,  endorsed with recourse (otherwise
than for  collection,  deposit or other  similar  transactions  in the  ordinary
course of  business),  agreed to purchase or  repurchase  or in respect of which
such Person has agreed contingently to supply or advance funds.

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

     "Issue Date" means the date on which the Notes are originally  issued under
this Indenture.

     "Lien"  means,  with respect to any Person,  any  mortgage,  pledge,  lien,
encumbrance,  easement, restriction,  covenant, right-of-way,  charge or adverse
claim  affecting  title or resulting in an encumbrance  against real or personal
property  of such  Person,  or a security  interest  of any kind  whether or not
filed,  recorded or otherwise  perfected  under  applicable  law  (including any
conditional  sale or other title  retention  agreement,  any lease in the nature
thereof,  any option,  right of first refusal or other similar agreement to sell
in each case securing  obligations of such Person and any filing of or agreement
to give any financing statement under the Uniform Commercial Code (or equivalent
statute or statutes) of any jurisdiction).

     "Memorandum" means the Offering  Memorandum,  dated September 18,  1997, of
the Company relating to the Securities and the Offering.

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                                        5




     "Non-U.S. Person" means anyone who is not a U.S. Person.
 
     "Notes" means the 5% Convertible  Subordinated  Notes due 2004 issued under
this Indenture.

     "Obligations"  means any principal,  premium,  interest,  penalties,  fees,
indemnifications,  reimbursements,  damages and other liabilities  payable under
the documentation governing any Indebtedness.

     "Offering" means the sale of the Securities to the Purchasers.

     "Officers"  means the  Chairman  of the  Board,  the  President,  the Chief
Financial Officer, the Treasurer, any Assistant Treasurer, Controller, Secretary
or any Vice President of the Company.

     "Officers'  Certificate" means a certificate signed by two Officers, one of
whom must be the principal  executive  officer,  principal  financial officer or
principal accounting officer of the Company.

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

     "Person" means any individual, corporation,  partnership, limited liability
company, joint venture, trust, estate, unincorporated organization or government
or any agency or political subdivision thereof.

     "Property" means with respect to any Person, any interest of such Person in
any kind of property or asset,  whether real,  personal or mixed, or tangible or
intangible, including, without limitation, Capital Stock in any other Person.

     "Purchasers"  means the  initial  purchasers  of the Notes.  "QIB"  means a
"qualified institutional buyer" as defined in Rule 144A of the Securities Act.

     "Qualified  Capital Stock" means any Capital Stock that is not Disqualified
Capital Stock.

     "Registration  Rights  Agreement" means the  Registration  Rights Agreement
dated as of the date hereof by and among the Company and the Purchasers, as such
agreement may be amended, modified or supplemented from time to time.

     "Regulation S" means Regulation S under the Securities Act.

     "Regulation  S  Global  Note"  means  a  global  Note  deposited  with  and
registered in the name of the Depository or its nominee that will be issued in a
denomination equal to

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                                        6



     the  outstanding  principal  amount  of  the  Notes  sold  in  reliance  on
Regulation S, or a Regulation S Temporary  Global Note or Regulation S Permanent
Global Note, as appropriate.

     "Regulation S Permanent  Global Note" means a permanent  global Note in the
form of Exhibit  A-1 hereto  deposited  with and  registered  in the name of the
Depository  or its nominee  that will be issued in a  denomination  equal to the
outstanding  principal  amount of the  Regulation  S Temporary  Global Note upon
expiration of the Restricted Period.

     "Regulation S Temporary  Global Note" means a single  temporary global Note
in the form of Note attached hereto as Exhibit A-2 deposited with and registered
in  the  name  of the  Depository  or its  nominee  that  will  be  issued  in a
denomination  equal to the  outstanding  principal  amount of the Notes  sold in
reliance on Regulation S.

     "Related  Person"  means  (i)  any  Affiliate  of  the  Company,  (ii)  any
individual or other Person who directly or  indirectly  holds 10% or more of any
class of Capital Stock of the Company,  (iii) any relative of such individual by
blood,  marriage  or adoption  not more  remote  than first  cousin and (iv) any
officer or director of the Company.

     "Restricted Period" means the period of 40 days commencing on the latest of
the commencement of the Offering and the Issue Date.

     "Responsible  Officer"  when used with  respect to the  Trustee,  means any
officer  within  the  Corporate  Trust  Office  (or any  successor  group of the
Trustee) including any President, Vice President, Secretary, Assistant Secretary
or any other officer of the Trustee customarily  performing functions similar to
those  performed by any of the above  designated  officers and also means,  with
respect to a particular  corporate trust matter,  any other officer to whom such
matter  is  referred  because  of his  knowledge  of and  familiarity  with  the
particular subject.

     "SEC" means the Securities and Exchange Commission.

     "Securities" means the Notes issued pursuant to this Indenture.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Securities  Custodian" means the Person named in Section 2.3, as custodian
with respect to the Securities in global form, or any successor entity thereto.

     "Senior Indebtedness" has the meaning provided in Section 11.2 hereof.

     "Shelf  Registration   Statement"  means  a  registration  statement  filed
pursuant to the Registration  Rights Agreement with the SEC relating to the sale
by the holders  thereof of Common Stock to be acquired  upon  conversion  of the
Securities.

     "Subsidiary" means  any corporation or other entity of which  securities or
other  ownership  interests  having ordinary voting power to elect a majority of
the Board of Directors

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                                        7



     or other Persons shall, at the time as of which any  determination is being
made, be owned by the Company either directly or through Subsidiaries.

     "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. SS 77aaa-77bbbb), as
amended by the Trust Indenture  Reform Act of 1990, and as in effect on the date
on which this Indenture is qualified under the TIA.

     "Trading  Day" means,  if shares of the Common Stock are listed for trading
on a national  securities  exchange,  a day on which such securities exchange is
open for the  transaction  of business and if shares of the Common Stock are not
listed for trading on a national securities  exchange, a day on which the NASDAQ
Stock Market is open for the transaction of business.

     "Transfer Restricted Securities" means Securities that bear or are required
to bear the legend set forth in Section 2.6 hereof.

     "Trustee" means the party named as such above until a successor replaces it
in accordance  with the  applicable  provisions of this Indenture and thereafter
means the successor serving hereunder.

     "U.S. Government Obligations" means direct obligations of the United States
of America,  or any agency or  instrumentality  thereof for the payment of which
the full faith and credit of the United States of America is pledged.

     "U.S.  Person"  means a U.S.  Person as  defined in Rule  902(o)  under the
Securities Act.

     "Voting Stock" means,  with respect to any Person,  securities of any class
or  classes  of Capital  Stock in such  Person  entitling  the  holders  thereof
(whether  at all  times or only so long as no senior  class of stock has  voting
power by reason of any  contingency)  to vote in the  election of members of the
Board of Directors or other governing body of such Person.

     "Wholly Owned Subsidiary" means a Subsidiary,  all the Capital Stock (other
than  directors'  qualifying  shares,  if  applicable)  of which is owned by the
Company or another Wholly Owned Subsidiary.

     Section 1.2 Other Definitions. Defined in Term Section

"Bankruptcy Law"............................................................6.1
"Cedel Bank"  ..............................................................2.1
"Change in Control".........................................................4.10
"Change in Control Date"....................................................4.10
"Change in Control Offer"...................................................4.10

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"Change in Control Payment Date"............................................4.10
"Custodian".................................................................6.1
"Euroclear"................................................................2.1
"Event of Default"..........................................................6.1
"Expiration Time"..........................................................10.5
"Legal Holiday"............................................................12.8
"Paying Agent"............................................................2.3
"Purchased Shares".........................................................10.5
"Registrar"................................................................2.3
"Regulation S Temporary Global Note".......................................2.1
"Representative"..........................................................11.2
"Securities Register".................................................2.3


         Section 1.3 Incorporation by Reference of Trust Indenture Act.

     Whenever this Indenture  refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture.

     The following TIA terms used in this Indenture have the following meanings:

     "indenture securities" means the Securities;

     "indenture security holder" means a Holder;

     "indenture to be qualified" means this Indenture;

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

     "obligor" on  the  Securities  means the Company and any successor  obligor
upon the Securities.

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

     Section 1.4 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;

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     (4) words in the singular include the plural, and in the plural include the
singular; and

     (5) provisions apply to successive events and transactions.


                                   ARTICLE II
                                 THE SECURITIES

     Section 2.1. Form and Dating; Securities in Global Form.

     The  Notes  and  the  Trustee's  certificate  of  authentication  shall  be
substantially in the form of Exhibit A hereto, which is incorporated in and made
a part of this  Indenture  and  shall be in an  aggregate  principal  amount  at
maturity of no greater than  $216,000,000.  The Securities  may have  notations,
legends or endorsements  as required by law, stock exchange rule,  agreements to
which the Company is subject or usage.  Each Security shall be dated the date of
its authentication. The Securities shall be issued initially in denominations of
$1,000 and whole multiples thereof.

     The terms and provisions contained in the Securities shall constitute,  and
are hereby expressly made, a part of this Indenture.  To the extent  applicable,
the Company and the Trustee,  by their execution and delivery of this Indenture,
expressly agree to such terms and provisions and to be bound thereby.

     Except for Notes  issued to an IAI,  the Notes will  initially be issued in
global  form,  substantially  in the form of Exhibits  A-1 and A-2.  Such Global
Securities  shall  represent  such of the  outstanding  Securities  as  shall be
specified  therein and each shall provide that it shall  represent the aggregate
amount of outstanding Securities from time to time endorsed thereon and that the
aggregate amount of outstanding  Securities represented thereby may from time to
time  be  reduced  or  increased,  as  appropriate,  to  reflect  exchanges  and
redemptions.  Any  adjustment on the books and records of the  Depository or any
endorsement  of a Global  Security  to  reflect  the amount of any  increase  or
decrease in the amount of outstanding  Securities  represented  thereby shall be
made  by the  Trustee,  or the  Securities  Custodian  at the  direction  of the
Trustee,  and in  accordance  with  the  standing  instructions  and  procedures
existing  between the Depository and the Securities  Custodian,  in each case in
accordance with instructions given by the Holder thereof.

     Notes  offered  and  sold in  reliance  on  Regulation  S shall  be  issued
initially in the form of the Regulation S Temporary Global Note (attached hereto
as Exhibit  A-2),  which shall be deposited on behalf of the  purchasers  of the
Notes represented thereby with the Trustee, at its New York office, as custodian
for the Depository,  and registered in the name of the Depository or the nominee
of the Depository for the accounts of designated agents holding on behalf of the
Euroclear System  ("Euroclear") or Cedel Bank N.A. ("Cedel Bank"), duly executed
by the Company and  authenticated  by the Trustee as hereinafter  provided.  The
Restricted  Period shall be terminated  upon the receipt by the Trustee of (i) a
written  certificate  from the Depository,  together with copies of certificates
from Euroclear and Cedel

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     Bank certifying that they have received  certification of non-United States
beneficial ownership of 100% of the aggregate principal amount of the Regulation
S Temporary  Global Note (except to the extent of any beneficial  owners thereof
who  acquired an  interest  therein  during the  Restricted  Period  pursuant to
another exemption from  registration  under the Securities Act and who will take
delivery of a beneficial  ownership interest in a 144A Global Note), and (ii) an
Officers'  Certificate  from  the  Company.  Following  the  termination  of the
Restricted  Period,  beneficial  interests in the Regulation S Temporary  Global
Note shall be  exchanged  for  beneficial  interests  in  Regulation S Permanent
Global Notes  pursuant to the  Applicable  Procedures.  Simultaneously  with the
authentication  of Regulation S Permanent Global Notes, the Trustee shall cancel
the Regulation S Temporary  Global Note. The aggregate  principal  amount of the
Regulation  S  Permanent  Global  Notes  may from time to time be  increased  or
decreased by  adjustments  made on the records of the Trustee and the Depository
or its nominee,  as the case may be, in connection with transfers of interest as
hereinafter provided.

     The  provisions of the "Operating  Procedures of the Euroclear  System" and
"Terms and  Conditions  Governing Use of Euroclear"  and the "General  Terms and
Conditions  of Cedel  Bank"  and  "Customer  Handbook"  of Cedel  Bank  shall be
applicable  to  interests  in the  Regulation  S  Temporary  Global Note and the
Regulation S Permanent  Global Notes that are held by the agent members  through
Euroclear or Cedel Bank.

     Section 2.2. Execution and Authentication.

     Officers  of the  Company  shall  sign and attest  the  Securities  for the
Company by manual or facsimile signature. The Company's seal shall be reproduced
on the Securities.

     If an Officer whose  signature is on a Security no longer holds that office
at the time the Security is  authenticated,  the Security shall  nevertheless be
valid.

     A Security shall not be valid until  authenticated  by the manual signature
of the Trustee.  The signature of the Trustee shall be conclusive  evidence that
the Security has been authenticated under this Indenture.  The form of Trustee's
certificate  of   authentication   to  be  borne  by  the  Securities  shall  be
substantially as set forth in Exhibit A hereto.

     The Trustee shall, upon receipt of an Officers' Certificate directing it to
do so,  authenticate  Securities for original issue up to an aggregate principal
amount  stated in Section  2.1. The  aggregate  principal  amount of  Securities
outstanding  at any time may not  exceed  such  amount,  except as  provided  in
Section 2.7.

     The Trustee may appoint an  authenticating  agent acceptable to the Company
to authenticate Securities.  Unless limited by the terms of such appointment, an
authenticating agent may authenticate Securities whenever the Trustee may do so.
Each  reference in this  Indenture  to  authentication  by the Trustee  includes
authentication by such agent. An authenticating  agent has the same rights as an
Agent to deal with the Company or an Affiliate.


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     Section 2.3. Registrar, Paying Agent, Depository and Securities Custodian.

     The Company shall maintain (a) an office or agency where  Securities may be
presented for registration of transfer or for exchange (the "Registrar") and (b)
an office or agency where  Securities  may be presented for payment (the "Paying
Agent").  The  Registrar  shall keep a register of the  Securities  and of their
transfer and exchange (the "Securities  Register").  The Company may appoint one
or more co-Registrars and one or more additional Paying Agents. The term "Paying
Agent" includes any additional  Paying Agent.  The Company may change any Paying
Agent,  Registrar,  or  co-Registrar  without notice to any Holder.  The Company
shall  notify the Trustee and the Trustee  shall  notify the Holders of the name
and address of any Agent not a party to this Indenture.  If the Company fails to
appoint or maintain  another  entity as Registrar or Paying  Agent,  the Trustee
shall act as such.  The  Company  or any of its  Subsidiaries  may act as Paying
Agent, Registrar,  or co-Registrar.  The Company shall enter into an appropriate
agency  agreement  with any Agent  not a party to this  Indenture,  which  shall
incorporate  the  provisions  of the TIA.  The  agreement  shall  implement  the
provisions of this Indenture that relate to such Agent. The Company shall notify
the Trustee of the name and address of any such Agent.  If the Company  fails to
maintain a Registrar or Paying Agent, or fails to give the foregoing notice, the
Trustee shall act as such, and shall be entitled to appropriate  compensation in
accordance with Section 7.7 hereof.

     The Company initially appoints the Trustee as Registrar,  Paying Agent, and
agent for service of notices and demands in connection with the Securities.

     The Company initially  appoints The Depository Trust Company ("DTC") to act
as Depository with respect to the Global Securities.

     The Company initially appoints Trustee to act as Securities  Custodian with
respect to the Global Securities.

     Section 2.4. Paying Agent to Hold Money in Trust.

     The Company shall require each Paying Agent other than the Trustee to agree
in writing  that the Paying  Agent will hold in trust for the benefit of Holders
or the  Trustee  all  money  held by the  Paying  Agent in  connection  with the
exercise of a conversion right under Article 10, or for the payment of principal
or interest on the Securities, and will notify the Trustee of any default by the
Company  in making  any such  payment.  While any such  default  continues,  the
Trustee may require a Paying  Agent to pay all money held by it to the  Trustee.
The Company at any time may  require a Paying  Agent to pay all money held by it
to the Trustee.  Upon  payment  over to the Trustee,  the Paying Agent (if other
than the Company) shall have no further liability for the money delivered to the
Trustee.  If the  Company  or any  Subsidiary  acts as  Paying  Agent,  it shall
segregate  and hold in a separate  trust fund for the benefit of the Holders all
money held by it as Paying Agent.


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     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 S312(a).  If the Trustee is not the
Registrar, the Company shall furnish to the Trustee at least seven Business Days
before  each  interest  payment  date and at such other times as the Trustee may
request  in writing a list in such form and as of such date as the  Trustee  may
reasonably  require  of the  names  and  addresses  of  Holders,  including  the
aggregate  principal  amount of Securities  held by them,  and the Company shall
otherwise comply with TIA S312(a).

     Section 2.6 Transfer and Exchange.

     (a)  Transfer  and  Exchange  of  Definitive  Securities.  When  Definitive
Securities are presented to the Registrar or co-Registrar  with a request (x) to
register  the transfer of the  Definitive  Securities;  or (y) to exchange  such
Definitive  Securities for an equal principal amount of Definitive Securities of
other authorized denominations, the Registrar or co-Registrar shall register the
transfer  or make  the  exchange  as  requested  if its  requirements  for  such
transactions  are  met;  provided,   however,  that  the  Definitive  Securities
presented or surrendered for registration of transfer or exchange:

     (i) shall be duly  endorsed  or  accompanied  by a written  instruction  of
transfer in form satisfactory to the Registrar or co-Registrar, duly executed by
the Holder thereof or by his attorney, duly authorized in writing; and

     (ii) in the case of  Transfer  Restricted  Securities  that are  Definitive
Securities,  shall be accompanied by the following  additional  information  and
documents, as applicable:

     (A)  if  such  Transfer  Restricted  Security  is  being  delivered  to the
Registrar  or  co-Registrar  by a Holder  for  registration  in the name of such
Holder, without transfer, a certification from such Holder to that effect; or

     (B) if such Transfer  Restricted  Security is being transferred to a QIB in
accordance  with Rule 144A under the  Securities Act or pursuant to an exemption
from  registration  in  accordance  with  Rules  144 or 145 or  Regulation  S or
pursuant to an effective  registration  statement  under the  Securities  Act, a
certification to that effect from the transferee or transferor and an Opinion of
Counsel from the transferee or transferor  reasonably  acceptable to the Company
and to the  Registrar  or  co-Registrar  to the effect that such  transfer is in
compliance with the Securities Act, or

     (C) if such Transfer  Restricted  Security is being transferred in reliance
on another exemption from the registration requirements of the Securities Act, a
certification to that effect and an Opinion of Counsel reasonably acceptable

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     to the Company and to the Registrar or co-Registrar to the effect that such
transfer is in compliance with the Securities Act.

     (b)  Restrictions  on Transfer of a  Definitive  Security  for a Beneficial
Interest in a Global Security.  A Definitive Security may not be exchanged for a
beneficial  interest  in a  Global  Security  except  upon  satisfaction  of the
requirements  set forth  below.  Upon  receipt by the  Trustee  of a  Definitive
Security,  duly endorsed or accompanied by appropriate  instruments of transfer,
in form satisfactory to the Trustee, together with:

     (A)  if  such  Definitive  Security  is  a  Transfer  Restricted  Security,
certification  in form and  substance  satisfactory  to the  Trustee  that  such
Definitive  Security is being  transferred to a QIB in accordance with Rule 144A
under the Securities Act or to a Non-U.S.  Person in an offshore  transaction in
accordance with Rule 904 under the Securities Act; and

     (B)  whether  or not such  Definitive  Security  is a  Transfer  Restricted
Security,  written instructions  directing the Trustee to make, or to direct the
Securities  Custodian to make, an endorsement on the Global  Security to reflect
an increase in the aggregate  principal amount of the Securities  represented by
the Global Security,

     then the Trustee shall cancel such Definitive Security and cause, or direct
the Securities Custodian to cause, in accordance with the standing  instructions
and procedures existing between the Depository and the Securities Custodian, the
aggregate  principal amount of Securities  represented by the Global Security to
be increased accordingly and shall credit or cause to be credited to the account
of the Person specified in such instructions a beneficial interest in the Global
Security equal to the principal  amount of the Definitive  Security so canceled.
If no Global  Securities are then  outstanding,  the Company shall issue and the
Trustee shall  authenticate a new Global Security in the  appropriate  principal
amount.

     (c)  Transfer  and  Exchange of Global  Securities.  (1) The  transfer  and
exchange of Global Securities or beneficial  interests therein shall be effected
through  the  Depository  in  accordance  with  this  Indenture  (including  the
restrictions  on transfer set forth herein) and the procedures of the Depository
therefor.

     (i)  Notwithstanding any other provisions of this Indenture (other than the
provisions set forth in subsection  (d) of this Section 2.6), a Global  Security
may not be  transferred  as a whole except by the Depository to a nominee of the
Depository  or by a nominee  of the  Depository  to the  Depository  or  another
nominee  of  the  Depository  or by the  Depository  or any  such  nominee  to a
successor Depository or a nominee of such successor Depository.

     (ii) A  transferor  of a  beneficial  interest in a Global  Security  shall
deliver to the Registrar a written order or instruction given in accordance with
the Depository's  procedures and containing information regarding the account of
the Depository to be credited with a beneficial interest in the Global Security.
The  Registrar  shall,  in  accordance  with  such  instructions,  instruct  the
Depository to credit to the account of the Person specified in such

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     instruction a beneficial  interest in the Global  Security and to debit the
account of the  transferor  of the  beneficial  interest in the Global  Security
being transferred.  Notwithstanding the foregoing to the contrary, all transfers
of beneficial  interests in Global  Securities  shall be done in accordance with
Applicable Procedures.
 
     (d) Transfer of a Beneficial Interest in a Global Security for a Definitive
Security.  Any Person having a beneficial interest in a Global Security may only
exchange such beneficial interest for a Definitive Security if:

     (i) the  Depository  for the  Securities  notifies  the  Company  that  the
Depository  is  unwilling  or unable to  continue as  Depository  for the Global
Securities and a successor Depository for the Global Securities is not appointed
by the Company within 90 days after delivery of such notice;

     (ii) the Company,  at its sole discretion,  notifies the Trustee in writing
that it  elects  to cause the  issuance  of  Definitive  Securities  under  this
Indenture, or

     (iii) such exchange is made concurrently with the transfer of such Security
to an IAI; or

     (iv) an Event of Default has occurred and is continuing.

     Upon on the occurrence of any such event and upon receipt by the Trustee of
written instructions (or such other form of instructions as is customary for the
Depository)  from the Depository or its nominee on behalf of any Person having a
beneficial  interest in a Global  Security  and upon receipt by the Trustee of a
written  order  or such  other  form of  instructions  as is  customary  for the
Depository  or  the  Person  designated  by  the  Depository  as  having  such a
beneficial interest containing  registration  instructions and, in the case of a
beneficial  interest  in a Transfer  Restricted  Security  only,  the  following
additional  information  and  documents  (all  of  which  may  be  submitted  by
facsimile):

     (A) if  such  beneficial  interest  is  being  transferred  to  the  Person
designated by the Depository as being the beneficial owner, a certification from
such Person to that effect; or

     (B) if such beneficial interest is being transferred to a QIB in accordance
with Rule  144A  under the  Securities  Act or  pursuant  to an  exemption  from
registration  in accordance with Rules 144 or 145 or Regulation S or pursuant to
an effective registration statement under the Securities Act, a certification to
that effect from the transferee or transferor and an Opinion of Counsel from the
transferee  or  transferor  reasonably  acceptable  to  the  Company  and to the
Registrar or co-Registrar to the effect that such transfer is in compliance with
the Securities Act; or

     (C) if such beneficial interest is being transferred in reliance on another
exemption  from  the   registration   requirements  of  the  Securities  Act,  a
certification to that effect from the transferee or transferor and an Opinion of
Counsel from the

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     transferee  or transferor  reasonably  acceptable to the Company and to the
Registrar or co-Registrar to the effect that such transfer is in compliance with
the Securities Act,

     then the  Trustee or the  Securities  Custodian,  at the  direction  of the
Trustee, will cause, in accordance with the standing instructions and procedures
existing  between the  Depository and the  Securities  Custodian,  the aggregate
principal  amount  of  the  Global  Security  to be  reduced  (with  appropriate
adjustments to the  transferor's  account) and,  following such  reduction,  the
Company will execute and, upon receipt of an authentication order in the form of
an  Officers'  Certificate,  the Trustee  will  authenticate  and deliver to the
transferee, as the case may be, a Definitive Security.

     (v) Definitive Securities issued in exchange for a beneficial interest in a
Global  Security  pursuant to this Section  2.6(d) shall be  registered  in such
names  and in such  authorized  denominations  as the  Depository,  pursuant  to
instructions  from its  direct or  indirect  participants  or  otherwise,  shall
instruct the Trustee.  The Trustee shall deliver such  Definitive  Securities to
the Persons in whose names such Securities are so registered.

     then  the  Company  will  execute,  and the  Trustee,  upon  receipt  of an
Officer'  Certificate  requesting the authentication and delivery of Definitive
Securities, will authenticate and deliver Definitive Securities, in an aggregate
principal  amount equal to the  principal  amount of the Global  Securities,  in
exchange for such Global Securities.

     (e) Legends.

     (i)  Except  as  permitted  by the  following  paragraph  (ii),  each  Note
certificate  evidencing the Global Securities and the Definitive Securities (and
all Notes  issued in exchange  therefor or  substitution  thereof)  shall bear a
legend in substantially the following form:

     THE NOTE EVIDENCED HEREBY HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
U.S.  SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),  OR ANY STATE
SECURITIES LAWS, AND, ACCORDINGLY,  MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED
STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF U.S.  PERSONS EXCEPT AS SET FORTH
IN THE FOLLOWING SENTENCE.  BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS
THAT (A) IT IS A "QUALIFIED  INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
THE  SECURITIES  ACT) OR (B) IT IS AN  INSTITUTIONAL  "ACCREDITED  INVESTOR" (AS
DEFINED  IN  RULE  501  (a)(1),  (2),  (3)  OR (7)  UNDER  THE  SECURITIES  ACT)
("INSTITUTIONAL  ACCREDITED  INVESTOR")  OR (C) IT IS NOT A U.S.  PERSON  AND IS
ACQUIRING THE NOTE EVIDENCED HEREBY IN AN OFFSHORE TRANSACTION,  (2) AGREES THAT
IT WILL NOT WITHIN TWO YEARS AFTER THE ORIGINAL  ISSUANCE OF THE NOTE  EVIDENCED
HEREBY  RESELL OR  OTHERWISE  TRANSFER THE NOTE  EVIDENCED  HEREBY OR THE COMMON
STOCK ISSUABLE UPON CONVERSION OF SUCH NOTE EXCEPT (A) TO KEY ENERGY GROUP, INC.
OR ANY SUBSIDIARY THEREOF,

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     (B)  INSIDE  THE  UNITED  STATES  TO A  QUALIFIED  INSTITUTIONAL  BUYER  IN
COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, (C) INSIDE THE UNITED STATES
TO AN INSTITUTIONAL ACCREDITED INVESTOR THAT, BEFORE SUCH TRANSFER, FURNISHES TO
AMERICAN STOCK TRANSFER & TRUST COMPANY,  AS TRUSTEE (OR SUCCESSOR  TRUSTEE,  AS
APPLICABLE),  A SIGNED LETTER CONTAINING CERTAIN  REPRESENTATIONS AND AGREEMENTS
RELATING TO THE  RESTRICTIONS ON TRANSFER OF THE NOTE EVIDENCED HEREBY (THE FORM
OF WHICH  LETTER CAN BE  OBTAINED  FROM SUCH  TRUSTEE),  (D)  OUTSIDE THE UNITED
STATES IN COMPLIANCE WITH RULE 904 UNDER THE SECURITIES ACT, (E) PURSUANT TO THE
EXEMPTION  FROM  REGISTRATION  PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF
AVAILABLE),  OR (F) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED
EFFECTIVE  UNDER THE SECURITIES ACT (AND WHICH  CONTINUES TO BE EFFECTIVE AT THE
TIME OF SUCH  TRANSFER);  AND (3) AGREES THAT IT WILL  DELIVER TO EACH PERSON TO
WHOM THE NOTE EVIDENCED HEREBY IS TRANSFERRED (OTHER THAN A TRANSFER PURSUANT TO
CLAUSE 2(F) ABOVE),  A NOTICE  SUBSTANTIALLY  TO THE EFFECT OF THIS  LEGEND.  IN
CONNECTION WITH ANY TRANSFER OF THE NOTE EVIDENCED HEREBY WITHIN TWO YEARS AFTER
THE ORIGINAL  ISSUANCE OF SUCH NOTE,  (OTHER THAN A TRANSFER  PURSUANT TO CLAUSE
2(E) ABOVE),  THE HOLDER MUST CHECK THE APPROPRIATE BOX SET FORTH ON THE REVERSE
HEREOF  RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT THIS  CERTIFICATE  TO
AMERICAN STOCK TRANSFER & TRUST COMPANY,  AS TRUSTEE (OR SUCCESSOR  TRUSTEE,  AS
APPLICABLE).  IF THE  PROPOSED  TRANSFER IS  PURSUANT TO CLAUSE 2(F) ABOVE,  THE
HOLDER MUST,  BEFORE SUCH  TRANSFER,  FURNISH TO AMERICAN STOCK TRANSFER & TRUST
COMPANY, AS TRUSTEE,  (OR SUCCESSOR TRUSTEE AS APPLICABLE) SUCH  CERTIFICATIONS,
LEGAL OPINIONS OR OTHER  INFORMATION  AS THE COMPANY MAY  REASONABLY  REQUIRE TO
CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION  FROM, OR IN A
TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.
THIS  LEGEND  WILL BE  REMOVED  UPON THE  EARLIER  OF THE  TRANSFER  OF THE NOTE
EVIDENCED  HEREBY  PURSUANT TO CLAUSE 2(F) ABOVE OR THE  EXPIRATION OF TWO YEARS
FROM THE ORIGINAL  ISSUANCE OF THE NOTE EVIDENCED  HEREBY.  AS USED HEREIN,  THE
TERMS  "OFFSHORE  TRANSACTION,"  "UNITED  STATES'  AND  "U.S.  PERSON"  HAVE THE
MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT.

     (ii) Upon any sale or transfer of a Transfer Restricted Security (including
any Transfer Restricted  Security  represented by a Global Security) pursuant to
an effective  registration  statement under the Securities Act or satisfying the
condition  set  forth  in  subclause  (2)(E)  of the  legend  set  forth  in the
immediately preceding paragraph:

     (A) in the case of any Transfer  Restricted  Security  that is a Definitive
Security,  the  Registrar or  co-Registrar  shall  permit the Holder  thereof to
exchange such Transfer  Restricted  Security for a Definitive Security that does
not bear the

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     legend set forth above and rescind any  restriction on the transfer of such
Transfer Restricted Security; and

     (B) any such Transfer Restricted Security  represented by a Global Security
shall not be  subject  to the  provisions  set forth in (i) above  (such sale or
transfer  being  subject  only to the  provisions  of  Section  2.6(c)  hereof);
provided,  however,  that with  respect  to any  request  for an  exchange  of a
Transfer  Restricted  Security that is  represented  by a Global  Security for a
Definitive  Security  that  does not bear a  legend,  which  request  is made in
reliance  upon Rule 144 or 145, the Holder  thereof  shall certify in writing to
the  Registrar or  co-Registrar  and shall  provide an Opinion of Counsel to the
Registrar or  co-Registrar  that such request is being made pursuant to Rule 144
or 145.

     (f)  Cancellation  or  Adjustment of Global  Security.  At such time as all
beneficial  interests  in a Global  Security  have  either  been  exchanged  for
Definitive Securities,  redeemed,  repurchased or canceled, such Global Security
shall be returned to or retained and canceled by the Trustee. At any time before
such cancellation,  if any beneficial interest in a Global Security is exchanged
for Definitive  Securities,  redeemed,  repurchased  or canceled,  the principal
amount of Securities represented by such Global Security shall be reduced and an
adjustment shall be made on the books and records of, or an endorsement shall be
made on such Global Security by, the Trustee or the Securities Custodian, at the
direction of the Trustee,  to reflect the reduction,  all in accordance with the
standing  instructions  and procedures  existing  between the Depository and the
Securities Custodian.

     (g)  Obligations  with respect to  Transfers  and  Exchanges of  Definitive
Securities.

     (i) To permit  registrations of transfers and exchanges,  the Company shall
execute and the Trustee  shall  authenticate  Definitive  Securities  and Global
Securities at the Registrar's or co-Registrar's request.

     (ii) No service  charge shall be made to a Holder for any  registration  of
transfer or exchange, but the Company may require payment of a sum sufficient to
cover any  transfer tax or similar  governmental  charge  payable in  connection
therewith  (other than any such transfer  taxes or similar  governmental  charge
payable  upon  exchanges  or transfers  pursuant to Sections  2.10,  3.6 and 9.5
hereof).

     (iii) The Registrar or  co-Registrar  shall not be required to register the
transfer or exchange of any Definitive Security selected for redemption in whole
or in part,  except the  unredeemed  portion of any  Definitive  Security  being
redeemed in part.

     (iv) All  Definitive  Securities  and  Global  Securities  issued  upon any
registration  of  transfer  or  exchange  of  Definitive  Securities  or  Global
Securities  shall be the valid  obligations of the Company,  evidencing the same
debt,  and entitled to the same benefits  under this Indenture as the Definitive
Securities or Global  Securities  surrendered upon such registration of transfer
or exchange.

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     (v) The Company shall not be required:

     (A) to issue,  register  the  transfer of or exchange  Securities  during a
period  beginning  at the  opening  of  business  15 days  before the day of any
selection of Securities for redemption under Section 3.2 and ending at the close
of business of the day of selection, or

     (B) to register  the  transfer or exchange of any  Security so selected for
redemption in whole or in part,  except the  unredeemed  portion of any Security
being redeemed in part.

     (vi) Before due presentment  for  registration of transfer of any Security,
the  Trustee,  any Agent and the  Company may deem and treat the Person in whose
name any Security is registered  as the absolute  owner of such Security for the
purpose of receiving  payment of principal of and interest and premium,  if any,
on such  Security  and for all other  purposes  whatsoever,  whether or not such
Security is overdue,  and neither the Trustee,  any Agent, nor the Company shall
be affected by notice to the contrary.

     Section 2.7 Replacement Securities.

     If any mutilated Security is surrendered to the Trustee or the Company,  or
the Trustee receives  evidence to its  satisfaction of the destruction,  loss or
theft of any Security, the Company shall issue and the Trustee, upon the written
order of the Company signed by two Officers of the Company, shall authenticate a
replacement   Security  if  the  Trustee's   requirements  for  replacements  of
Securities are met. If required by the Trustee or the Company, an indemnity bond
must be supplied by the Holder that is sufficient in the judgment of the Trustee
and  the  Company  to  protect  the  Company,  the  Trustee,  any  Agent  or any
authenticating  agent from any loss that any of them may suffer if a Security is
replaced. The Company and the Trustee may charge for their expenses in replacing
a Security.

     Every replacement Security is an additional obligation of the Company.

     Section 2.8 Outstanding Securities.

     The Securities outstanding at any time are all the Securities authenticated
by the  Trustee  except for those  canceled  by it,  those  delivered  to it for
cancellation,  and  those  reductions  in the  interests  in a  Global  Security
effected by the Trustee  hereunder,  and those described in this  Section 2.8 as
not outstanding.

     If a Security is replaced  pursuant to Section 2.7 hereof,  it ceases to be
outstanding  unless  the  Trustee  receives  proof  satisfactory  to it that the
replaced Security is held by a bona fide purchaser.

     If the principal  amount of any Security is  considered  paid under Section
4.1 hereof, it ceases to be outstanding, and interest on it ceases to accrue.


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     Except as set forth in Section 2.9 hereof,  a Security does not cease to be
outstanding  because  the  Company  or an  Affiliate  of the  Company  holds the
Security.

     Section 2.9 Treasury Securities.

     In  determining  whether the Holders of the  required  principal  amount of
Securities have concurred in any direction,  waiver or consent, Securities owned
by the  Company or any  Affiliate  of the  Company  (whether  directly  or by or
through the Depository)  shall be considered as though not  outstanding,  except
that for  purposes of  determining  whether the Trustee  shall be  protected  in
relying  on any such  direction,  waiver  or  consent,  only  Securities  that a
Responsible Officer knows to be so owned shall be so considered.

     Section 2.10 Temporary Securities.

     Until Definitive Securities are ready for delivery, the Company may prepare
and the Trustee shall authenticate  temporary  Securities.  Temporary Securities
shall  be  substantially  in the  form of  Definitive  Securities  but may  have
variations that the Company and the Trustee  consider  appropriate for temporary
Securities.  Without  unreasonable  delay,  the  Company  shall  prepare and the
Trustee, upon receipt of an Officers' Certificate of the Company directing it to
do so,  shall  authenticate  Definitive  Securities  in exchange  for  temporary
Securities.  Until such exchange,  temporary Securities shall be entitled to the
same rights, benefits and privileges as Definitive Securities.

     Section 2.11 Cancellation.

     The  Company  at  any  time  may  deliver  Securities  to the  Trustee  for
cancellation.  The  Registrar  and Paying Agent shall forward to the Trustee any
Securities  surrendered  to them  for  registration  of  transfer,  exchange  or
payment. The Trustee shall cancel all Securities surrendered for registration of
transfer, exchange, payment,  conversion,  replacement or cancellation and shall
destroy  canceled  Securities and  certification of their  destruction  shall be
delivered to the Company  (subject to the record  retention  requirement  of the
Exchange Act) unless by a written order,  signed by two Officers of the Company,
the Company shall direct that canceled Securities be returned to it. The Company
may not issue new Securities to replace Securities that it has redeemed or paid,
converted or that have been delivered to the Trustee for cancellation.

     Section 2.12 Defaulted Interest.

     If the Company  defaults in a payment of  interest  on the  Securities,  it
shall pay the  defaulted  interest  in any  lawful  manner  plus,  to the extent
lawful,  interest  payable on the  defaulted  interest,  to the  persons who are
Holders on a subsequent special record date, which date shall be at the earliest
practicable  date but in all  events at least  five  Business  Days  before  the
payment date, in each case at the rate provided in the Securities and in Section
4.1 hereof. The Company shall, with the consent of the Trustee,  fix or cause to
be fixed each such special record date and payment date. At least 15 days before
the special record date, the Company (or the Trustee,  in the name of and at the
expense of the Company) shall mail

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     to Holders a notice  that  states the  special  record  date,  the  related
payment date, and the amount of such interest to be paid.

                                   ARTICLE III
                                   REDEMPTION

     Section 3.1 Notices to Trustee.

     If the  Company  elects  to  redeem  Securities  pursuant  to the  optional
redemption provisions of Section 3.7 hereof, it shall furnish to the Trustee, at
least 60 days but not more than 90 days before a redemption  date,  an Officers'
Certificate  setting forth the Section of this  Indenture  pursuant to which the
redemption  shall occur, the redemption date, the principal amount of Securities
to be redeemed, and the redemption price.

     If the Company is required to make an offer to redeem  Securities  pursuant
to a Change in Control, it shall furnish to the Trustee,  within 60 days after a
Change in Control,  an Officers'  Certificate  setting  forth (a) the Section of
this Indenture pursuant to which the redemption shall occur, (b) the date of the
Change in Control,  (c) the Change in Control  Payment  Date,  (d) the principal
amount of the Securities  offered to be redeemed,  (e) a statement that a Change
in Control has occurred and a description  thereof, and (f) a description of the
procedures  to be  followed  by  Holders  in  order  to  have  their  Securities
repurchased.

     If the Company is required to increase the interest rate on the  Securities
pursuant to the Registration  Rights Agreement,  it shall furnish to the Trustee
not  more  than 15 days  before  the  date  such  interest  is due to be paid an
Officers' Certificate setting forth the rate at which interest on the Securities
is to be paid. The Company, or the Trustee, at the expense of the Company, shall
notify the Holders of the change in interest  rate by notice sent in  accordance
with Section 10.10(e) of this Indenture. Notwithstanding any other provisions of
this  Indenture,  the  Trustee  shall have no duty to inquire as to whether  the
interest  rate on the  Securities  has  increased  and shall not be bound by the
terms  and  conditions  of  the  Registration  Rights  Agreement  or  any  other
agreements or documents between the Holders and the Company.

     Section 3.2 Selection of Securities to be Redeemed.

     If less than all of the  Securities  are to be redeemed,  the Trustee shall
select the  Securities to be redeemed  among the Holders in accordance  with any
method  the  Trustee  considers  fair and  appropriate  (and in such  manner  as
complies with applicable legal and stock exchange requirements,  if any). In the
event of partial  redemption  by lot, the  particular  Securities to be redeemed
shall be selected,  unless otherwise  provided herein, not less than 15 nor more
than 60 days  before the  redemption  date by the Trustee  from the  outstanding
Securities not previously called for redemption.

     The Trustee shall promptly  notify the Company in writing of the Securities
selected for  redemption  and, in the case of any Security  selected for partial
redemption, the

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     principal  amount  thereof to be redeemed.  Securities and portions of them
selected shall be in amounts of $1,000 or whole multiples thereof. Provisions of
this  Indenture  that apply to Securities  called for  redemption  also apply to
portions of Securities called for redemption.

     Section 3.3 Notice of Redemption.

     Subject to the  provisions  of Sections  4.10 and 4.11 hereof,  at least 15
days but not more than 60 days before a redemption  date, the Company shall mail
a notice of redemption to each Holder whose Securities are to be redeemed at its
registered address.  The notice shall identify the Securities to be redeemed and
shall state:

     (a) the  redemption  date and that the  right to  convert  such  Securities
pursuant to Article 10 hereof shall be terminated on such date;

     (b) the redemption price;

     (c) if any Security is being redeemed in part, the portion of the principal
amount of such Security to be redeemed and that,  after the redemption date upon
surrender of such  Security,  a new Security of the same series of Securities in
principal amount equal to the unredeemed portion will be issued;

     (d) the name and address of the Paying Agent;

     (e) that Securities called for redemption must be surrendered to the Paying
Agent to collect the redemption price;

     (f) that,  unless the Company  defaults in making such redemption  payment,
interest on Securities  called for redemption  ceases to accrue on and after the
redemption date;

     (g) the paragraph of the Securities and Section of this Indenture  pursuant
to which the Securities called for redemption are being redeemed; and

     (h) that no representation is made as to the correctness or accuracy of the
CUSIP number, if any, listed in such notice or printed on the Securities.

     At the Company's  request,  the Trustee shall give the notice of redemption
in the Company's name and at its expense;  provided,  however,  that the Company
shall have  delivered to the Trustee,  at least 60 days prior to the  redemption
date, an Officers' Certificate  requesting that the Trustee give such notice and
setting  forth the  information  to be stated in such  notice as provided in the
preceding paragraph.


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     Section 3.4 Effect of Notice of Redemption.

     Once notice of redemption is mailed in accordance  with Section 3.3 hereof,
Securities  called for redemption  become due and payable on the redemption date
at the redemption  price. On and after the redemption  date,  unless the Company
defaults in the payment of the redemption price,  interest shall cease to accrue
on the  Securities or portions of them called for  redemption  and all rights of
Holders of such Securities shall  terminate,  including  without  limitation the
right to convert such Securities, except for the right to receive the redemption
price.  Upon  surrender  to the Paying  Agent,  such  Holders  shall be paid the
redemption  price plus accrued  interest,  if any, to the  redemption  date, but
interest  installments  whose maturity is on or before the redemption date shall
be  payable  to the Holder of record at the close of  business  on the  relevant
record dates referred to in the Securities.

     Section 3.5 Deposit of Redemption Price.

     One Business Day before the redemption date, the Company shall deposit with
the Trustee or with the Paying  Agent  money  sufficient  to pay the  redemption
price of and accrued interest on all Securities to be redeemed on that date. The
Trustee or the Paying Agent shall return to the Company any money deposited with
the  Trustee  or the  Paying  Agent by the  Company  in  excess  of the  amounts
necessary  to pay  the  redemption  price  of,  and  accrued  interest  on,  all
Securities to be redeemed.

     Interest  on the  Securities  to be  redeemed  shall cease to accrue on the
applicable  redemption  date,  whether or not such  Securities are presented for
payment, if the Company provides money sufficient to pay the redemption price of
and accrued  interest  on all  Securities  to be  redeemed on such date.  If any
Security  called  for  redemption  shall  not  be so  paid  upon  surrender  for
redemption  because of the failure of the  Company to comply with the  preceding
paragraph,  interest shall be paid on the unpaid principal,  from the redemption
date until such  principal is paid, and to the extent lawful on any interest not
paid  on such  unpaid  principal,  in each  case  at the  rate  provided  in the
Securities and in Section 4.1 hereof.

     Section 3.6 Securities Redeemed in Part.

     Upon  surrender  of a  Definitive  Security  that is redeemed in part,  the
Company  shall issue and the Trustee  shall  authenticate  for the Holder at the
expense of the  Company a new  Security of the same  series  equal in  principal
amount to the unredeemed portion of the Definitive Security surrendered.

     Section 3.7 Optional Redemption.

     The Company may redeem at any time on or after  September 15,  2000, all or
any portion of the  Securities  outstanding at the following  redemption  prices
expressed as a percentage of the principal amount thereof, if the Securities are
redeemed during the 12- month period  beginning  September 15,  of the following
years:


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Year                                                                Percentage

2000...........................................................          102.86%

2001...........................................................          102.14%

2002...........................................................          101.43%

2003...........................................................          100.71%


     Any  redemption  pursuant to this Section 3.7 shall be made,  to the extent
applicable, pursuant to the provisions of Sections 3.1 through 3.6 hereof.


                                   ARTICLE IV
                                    COVENANTS

     Section 4.1 Payment of Securities.

     The Company  shall pay the  principal of and interest on the  Securities on
the dates and in the manner provided in the  Securities.  Principal and interest
shall be considered  paid on the date due if the Paying Agent, if other than the
Company or a Subsidiary  of the Company,  holds at least one Business Day before
that date money  deposited  by the Company in  immediately  available  funds and
designated  for and  sufficient to pay all principal and interest then due. Such
Paying Agent shall return to the Company,  no later than five days following the
date of payment, any money (including accrued interest) that exceeds such amount
of principal and interest paid on the Securities.

     The Company  shall pay interest  (including  post-petition  interest in any
proceeding  under any Bankruptcy Law) on overdue  principal at the rate equal to
1% per annum in excess of the then applicable interest rate on the Securities to
the extent  lawful.  The Company  shall pay  interest  (including  post-petition
interest in any proceeding under any Bankruptcy Law) on overdue  installments of
interest (without regard to any applicable grace period) at the same rate to the
extent lawful.

     Section 4.2 Maintenance of Office or Agency.

     The Company shall maintain in the Borough of Manhattan, New York, New York,
an office or  agency  (which  may be an  office  of the  Trustee,  Registrar  or
co-Registrar)  where  Securities may be surrendered for registration of transfer
or exchange  and where  notices and demands to or upon the Company in respect of
the Securities  and this Indenture may be served.  The Company shall give prompt
written  notice to the Trustee of the location,  and any change in the location,
of such office or agency.  If at any time the Company  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.


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     The Company also may from time to time  designate one or more other offices
or agencies where the Securities may be presented or surrendered  for any or all
such  purposes and may from time to time rescind  such  designations;  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,  New York, New York for such  purposes.  The Company will give prompt
written  notice to the Trustee of any such  designation or rescission and of any
change in the location of any such other office or agency.

     The Company hereby  designates the Corporate Trust Office of the Trustee as
one such office or agency of the Company in accordance with Section 2.3.

     Section 4.3 SEC Reports.

     (a) So long as any of the Securities remain  outstanding and the Company is
subject to the  reporting  requirements  of the Exchange  Act, the Company shall
file with the SEC and  distribute  to the Trustee for delivery to the Holders of
the Securities  copies of the quarterly and annual reports  required to be filed
with the SEC,  and if the  Company  ceases to become  subject  to the  reporting
requirements  of the Exchange Act, the Company  shall  distribute to the Trustee
for delivery to the Holders of the Securities copies of the quarterly and annual
financial  information  that would have been  required  to be filed with the SEC
pursuant to the  Exchange  Act had the  Company  been  subject to the  reporting
requirements  of Section 13 or 15(d) of the  Exchange  Act.  All such  financial
information  shall  include   consolidated   financial   statements   (including
footnotes)  prepared in accordance with GAAP. Such annual financial  information
shall also include an opinion  thereon  expressed by an  independent  accounting
firm  of  established  national  reputation.  All  such  consolidated  financial
statements  shall be accompanied by a  "Management's  Discussion and Analysis of
Financial Condition and Results of Operations."

     (b) The financial  information  to be  distributed to Holders of Securities
shall be filed  with the  Trustee  and  shall be mailed  by the  Trustee  to the
Holders at their addresses appearing in the register of Securities maintained by
the Registrar,  within 15 days after receipt of such financial information.  The
Company shall file such  financial  information  with the Trustee within 15 days
after it is filed with the SEC, if required, but in no event later than 105 days
after the end of the  Company's  fiscal year or later than 60 days after the end
of each of the first three  quarters of each such  fiscal  year,  in the case of
quarterly reports;  provided,  however, that the Trustee's only obligation is to
mail the financial  information that it receives from the Company to the Holders
and not to obtain such information from the Company.

     (c) The Company shall make such financial  information described in Section
4.3 (a) available to prospective purchasers of the Notes.

     (d) The  Company  shall  provide the Trustee  with a  sufficient  number of
copies of all reports and other documents and  information  that the Trustee may
be required to deliver to the Holders under this Section 4.3.


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     Section 4.4 Compliance Certificate.

     (a) The Company shall deliver to the Trustee, within 120 days after the end
of each fiscal  year,  an  Officers'  Certificate  stating  that a review of the
activities of the Company  during the preceding  fiscal year has been made under
the supervision of the signing  Officers with a view to determining  whether the
Company has kept,  observed,  performed and fulfilled its obligations under this
Indenture,   and  further  stating,   as  to  each  such  Officer  signing  such
certificate,  that to the best of his knowledge the Company has kept,  observed,
performed and fulfilled each and every covenant  contained in this Indenture and
is  not in  default  in  the  performance  or  observance  of any of the  terms,
provisions  and  conditions  hereof (or, if a Default or Event of Default  shall
have occurred, describing all such Defaults or Events of Default of which he may
have  knowledge  and what  action is being taken or is proposed to be taken with
respect thereto) and that to the best of his knowledge no event has occurred and
remains in existence by reason of which  payments on account of the principal of
or  interest,  if any, on the  Securities  are  prohibited  or if such event has
occurred,  a description of the event and what action is being taken or proposed
to be taken with respect thereto.

     (b) So long as not  contrary  to the then  current  recommendations  of the
American  Institute of Certified Public  Accountants,  the financial  statements
delivered  pursuant  to  Section  4.3 above  shall be  accompanied  by a written
statement of the Company's  independent  public accountants (who shall be a firm
of established national reputation) that in making the examination necessary for
certification of such financial  statements  nothing has come to their attention
which would lead them to believe that the Company has violated any provisions of
Sections 4.1,  4.5,  4.7,  4.9,  4.10 or 4.11  hereof  or of  Article  5 of this
Indenture  or, if any such  violation has  occurred,  specifying  the nature and
period of existence thereof, it being understood that such accountants shall not
be liable  directly  or  indirectly  to any  person  for any  failure  to obtain
knowledge of any such violation.

     (c) The Company shall,  so long as any of the  Securities are  outstanding,
deliver to the Trustee, forthwith upon any Officer becoming aware of any Default
or Event of Default or default in the performance of any covenant,  agreement or
condition contained in this Indenture an Officers'  Certificate  specifying such
Default,  Event of Default or default  and what  action the Company is taking or
proposes to take with respect thereto.

     Section 4.5 Compliance with Laws; Taxes.

     The Company shall, and shall cause each of its Subsidiaries to, comply with
all statutes,  laws,  ordinances or government rules and regulations to which it
is subject,  noncompliance  with which  would  materially  adversely  affect the
business, prospects,  earnings,  properties,  assets or condition,  financial or
otherwise, of the Company and its Subsidiaries taken as a whole.

     The Company shall,  and shall cause each of its Subsidiaries to, pay before
delinquency all material taxes,  assessments,  and governmental levies except as
contested in good faith and by appropriate proceedings.


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     Section 4.6 Stay, Extension and Usury Laws.

     The Company  covenants  (to the extent that it may  lawfully do so) that it
shall not at any time insist upon,  plead, or in any manner  whatsoever claim or
take the benefit or  advantage  of, any stay,  extension  or usury law  wherever
enacted, now or at any time hereafter in force, that may affect the covenants or
the  performance of this  Indenture;  and the Company (to the extent that it may
lawfully do so) hereby  expressly  waives all benefit or  advantage  of any such
law, and covenants that it shall not, by resort to any such law,  hinder,  delay
or impede the  execution of any power herein  granted to the Trustee,  but shall
suffer and permit  the  execution  of every such power as though no such law has
been enacted.

     Section 4.7 Corporate Existence.

     Subject to Sections 4.8 and Article 5 hereof, the Company shall do or cause
to be done all things  necessary  to preserve  and keep in full force and effect
(a) its corporate existence in accordance with its organizational  documents (as
the same may be  amended  from time to time)  and (b) its  rights  (charter  and
statutory),  licenses and franchises;  provided, however, that the Company shall
not be required to preserve any such 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  its
Subsidiaries,  taken as a whole, and that the loss thereof is not adverse in any
material respect to the Holders.

     Section 4.8 Liquidation.

     The Board of Directors or the  stockholders  of the Company may not adopt a
plan of liquidation that provides for, contemplates or the effectuation of which
is preceded by (a) the sale,  lease,  conveyance or other  disposition of all or
substantially all of the assets of the Company  otherwise than  substantially as
an entirety (Section 5.1 of this Indenture being the Section hereof that governs
any such  sale,  lease,  conveyance  or other  disposition  substantially  as an
entirety) and (b) the distribution of all or  substantially  all of the proceeds
of such sale, lease, conveyance or other disposition and of the remaining assets
of the  Company  to the  holders  of Capital  Stock of the  Company,  unless the
Company, before making any liquidating distribution pursuant to such plan, makes
provision for the satisfaction of the Company's  Obligations hereunder and under
the Securities as to the payment of principal and premium  thereon,  if any, and
interest.  The Company shall be deemed to make  provision for such payments only
if (x) the Company  delivers in trust to the Trustee or Paying Agent (other than
the Company or its Subsidiaries) money or U.S. Government  Obligations  maturing
as to principal and interest in such amounts and at such times as are sufficient
without  consideration of any reinvestment of such interest to pay the principal
of and premium on, if any, and accrued interest on the Securities,  or (y) there
is an express  assumption  and  observance of all covenants and conditions to be
performed  by  the  Company  hereunder  by  the  execution  and  delivery  of  a
supplemental  indenture  in form  satisfactory  to the  Trustee by a Person that
acquires or will acquire  (otherwise  than pursuant to a lease) a portion of the
assets  of the  Company  and  which  Person  will  have  Consolidated  Net Worth
(immediately  after the  acquisition)  equal to or greater than the Consolidated
Net Worth of the

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     Company  immediately  preceding the  acquisition and which is organized and
existing under the laws of the United States,  any State thereof or the District
of Columbia;  provided, however, that the Company shall not make any liquidating
distribution  until  after the  Company  shall  have  certified  to the  Trustee
pursuant to an Officers' Certificate at least five days before the making of any
liquidating  distribution  that it has  complied  with  the  provisions  of this
Section  4.8 and that no Default or Event of Default  then exists or would occur
as a result of any such liquidating distribution.

     Section 4.9 Limitation on Dispositions of Assets.

     The  Company  shall not  sell,  transfer  or  otherwise  dispose  of all or
substantially  all of its  properties or assets  (including by way of a sale and
leaseback) except in accordance with the provisions of Section 5.1 hereof.

     Section 4.10 Change in Control.

     If,  at any time,  (a) an event or series of events by which any  Person or
Group of Persons shall, as a result of a tender or exchange  offer,  open market
purchase,  privately  negotiated purchase,  merger,  consolidation or otherwise,
have  become the  beneficial  owner  (within the meaning of Rule 13d-3 under the
Exchange  Act)  of  50% or  more  of  the  combined  voting  power  of the  then
outstanding  Voting Stock and warrants or options to acquire such Voting  Stock,
calculated on a fully-diluted  basis, of the Company,  (b) the Company is merged
with or into another  corporation  with the effect that  immediately  after such
transaction  the  stockholders  of the Company  hold less than a majority of the
combined  voting  power  of the then  outstanding  Voting  Stock  of the  Person
surviving such transaction or, (c) the direct or indirect, sale, lease, exchange
or other transfer to any Person or Group of Persons of all or substantially  all
of the assets of the Company  (each a "Change in  Control"  and the time of such
Change in Control being referred to as the "Change in Control  Date"),  then the
Company shall notify the Holders in writing of such occurrence and shall make an
offer to purchase  (as the same may be extended in  accordance  with  applicable
law,  the "Change in Control  Offer") on a Business  Day (the "Change in Control
Payment  Date") not later than 60 days following each Change in Control Date all
then  outstanding  Securities at a purchase price equal to 100% of the principal
amount thereof plus accrued and unpaid interest thereon to the Change in Control
Payment Date, if any. The Change in Control Offer shall be mailed by the Company
not less than 30 days nor more than 45 days before any Change in Control Payment
Date to Holders of  Securities at their last  registered  address with a copy to
the Trustee and the Paying Agent and shall set forth (w) notice that a Change in
Control has occurred and that each Holder of Securities then outstanding has the
right to require the Company to repurchase,  for cash, all or any portion (which
is equal to $1,000 or a whole multiple  thereof) of such Holder's  Securities at
100% of the principal amount thereof plus accrued and unpaid interest thereon to
the Change in Control  Payment Date, (x) the Change in Control Payment Date, (y)
a description  of the Change in Control and (z) a description  of the procedures
to be followed by such Holder in order to have its Securities  repurchased.  The
Change in Control  Offer shall  remain open for not less than 30 days,  nor more
than 45 days,  and until the close of  business  on any such  Change in  Control
Payment Date.  If the Change in Control  Payment Date is on or after an interest
payment record date and on or before the

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     related  Interest  Payment Date,  any accrued  interest will be paid to the
person in whose name a Security is  registered  at the close of business on such
record date, and no additional  interest will be payable to Holders who tender a
Security pursuant to the Change in Control Offer.

     The Company  shall  comply with Rule 14e-1 under the  Exchange  Act and any
other  securities  laws and  regulations  thereunder to the extent such laws and
regulations are applicable, in the event that a Change in Control occurs and the
Company is required to repurchase the Securities pursuant to this Section 4.10.

     On the Change in Control  Payment  Date,  the Company  shall (x) accept for
payment  Securities  or  portions  thereof  tendered  pursuant  to the Change in
Control  Offer,  (y) deposit with the Paying Agent money  sufficient  to pay the
purchase price of all Securities or portions thereof so tendered and (z) deliver
to the Trustee  Securities so accepted  together  with an Officers'  Certificate
stating the Securities or portions thereof  tendered to the Company.  The Paying
Agent shall promptly mail to the Holders of Securities so accepted payment in an
amount equal to the purchase price, and the Trustee shall promptly  authenticate
and mail to such  Holders a new  Security of the same series  equal in principal
amount to any unpurchased portion of the Security surrendered.

     Section 4.11 Rule 144A Information Requirement.

     The Company has agreed to furnish to the Holders or  beneficial  holders of
Notes and prospective  purchasers of Notes designated by the holders of Transfer
Restricted  Securities,  upon their  request,  the  information  required  to be
delivered  pursuant to Rule 144(d)(4)  under the Securities Act unless and until
such  time as the  Company  has  registered  the  Notes  for  resale  under  the
Securities Act.


                                    ARTICLE V
                                   SUCCESSORS

     Section 5.1 When the Company May Merge, etc.

     The Company will not  consolidate or merge with or into (whether or not the
Company is the surviving corporation),  or sell, assign, transfer, lease, convey
or  otherwise   dispose  of  substantially  all  of  its  properties  or  assets
(determined on a consolidated  basis for the Company and its Subsidiaries  taken
as a whole),  in one or more related  transactions,  to another Person or entity
(other than a merger between the Company and any Wholly Owned  Subsidiary of the
Company) unless:

     (a) the  Company  survives  such  merger or such  Person  is a  corporation
organized and existing  under the laws of the United  States of America,  one of
the  states  thereof or the  District  of  Columbia,  and  expressly  assumes by
supplemental  indenture  all  of  the  obligations  under  the  Securities,  the
Indenture,   the  Registration  Rights  Agreement,   and  all  other  agreements
pertaining thereto,


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     (b)  immediately  after giving  effect to such  transaction,  no Default or
Event of Default shall have occurred and be continuing, and

     (c) immediately after giving effect to such  transaction,  the Consolidated
Net Worth of the resulting,  surviving  corporation is not less than that of the
Company immediately before the transaction.

     The Company shall  deliver to the Trustee  before the  consummation  of the
proposed  transaction an Officers'  Certificate  to the foregoing  effect and an
Opinion of Counsel to the effect that such merger, sale,  assignment,  transfer,
lease,  conveyance or other  disposition and, if applicable,  such  Supplemental
Indenture,  comply with this  Indenture  and all  conditions  precedent  to such
merger, sale, assignment,  transfer, lease, conveyance or other disposition have
been  satisfied.  The Trustee shall be entitled to rely  conclusively  upon such
Officers' Certificate and Opinion of Counsel.

     Section 5.2 Successor Corporation Substituted.

     Upon any consolidation or merger,  or any sale, lease,  conveyance or other
disposition  of  all  or  substantially  all of the  assets  of the  Company  in
accordance  with Section 5.1 hereof,  the successor  corporation  formed by such
consolidation or into or with which the Company is merged or to which such sale,
lease,  conveyance  or  other  disposition  is made  shall  succeed  to,  and be
substituted  for,  and may exercise  every right and power of the Company  under
this Indenture  with the same effect as if such successor  person had been named
as the  Company,  herein;  provided,  however,  that the  Company  shall  not be
released or discharged  from the  obligation to pay the principal of or interest
on the Securities.


                                   ARTICLE VI
                              DEFAULTS AND REMEDIES

     Section 6.1 Events of Default.

     The following shall constitute an"Event of Default":

     (a) default in the payment of  principal  of, or premium,  if any,  on, the
Securities  when  due  at  maturity,  upon  repurchase,   upon  acceleration  or
otherwise,  including  failure  of the  Company  to  repurchase  the  Securities
following a Change in Control and failure to make any  redemption  payment  when
due;

     (b) default in the payment of any installment of interest on the Securities
when due  (including  any interest  payable in  connection  with any  redemption
payment) and continuance of such Default for more than 30 days;

     (c) default on any other  Indebtedness  of the Company or any Subsidiary if
either (i) such default  results from the failure to pay principal of,  premium,
if any, or interest on any such  Indebtedness when due in excess of $25,000,000,
or (ii) as a

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     result  of such  default,  the  maturity  of  such  Indebtedness  has  been
accelerated before its expected maturity,  without such default and acceleration
having been rescinded or annulled  within a period of 10 days, and the principal
amount of any other such  Indebtedness in default,  or the maturity of which has
been so accelerated, aggregates $25,000,000 or more;

     (d) default by the Company or any  Subsidiary  in the  performance,  or the
breach,  of any other covenant or warranty of the Company or such  Subsidiary in
this Indenture and the failure to remedy such Default within a period of 60 days
after written  notice  thereof to the Company from the Trustee or to the Company
and the Trustee from the Holders of 25% in principal  amount of the  outstanding
Securities;

     (e) the entry by a court of one or more  judgments  or orders  against  the
Company or any Subsidiary in an aggregate  amount in excess of $25,000,000  that
are not covered by insurance written by third parties that has not been vacated,
discharged,  satisfied or stayed  pending  appeal within 60 days after the entry
thereof;

     (f) any  act or acts by the  Company  or its  Subsidiaries  pursuant  to or
within the meaning of any Bankruptcy Law:

     (i) commencing a voluntary case,

     (ii)  consenting  to the  entry of an order  for  relief  against  it in an
involuntary case,

     (iii)  consenting  to the  appointment  of a Custodian  of it or for all or
substantially all of its property,

     (iv) making a general assignment for the benefit of its creditors, or

     (v) which results in the Company or its  Subsidiaries  generally not paying
its debts as they become due; or

     (g) the entry of an order or decree  by a court of  competent  jurisdiction
under any Bankruptcy Law that:

     (i) is for relief  against the Company or any  Subsidiary in an involuntary
case,

     (ii)  appoints a Custodian of the Company or any  Subsidiary  or for all or
substantially all of the property of the Company or any Subsidiary, or

     (iii) orders the liquidation of the Company or any Subsidiary,

     in each case,  if such order or decree  remains  unstayed and in effect for
120 consecutive days.


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     The term  "Bankruptcy  Law" means title 11 of the United States Code or any
similar  federal or state law for the relief of  debtors.  The term  "Custodian"
means any receiver, trustee, assignee,  liquidator or similar official under any
Bankruptcy Law.

     Section 6.2 Acceleration.

     If an Event of Default (other than an Event of Default  specified in clause
(f) or (g) of Section  6.1) occurs and is  continuing,  the Trustee by notice to
the  Company,  or the  Holders of at least 25% in  principal  amount of the then
outstanding Securities by notice to the Company and the Trustee, may declare the
unpaid principal of and any accrued interest on all the Securities to be due and
payable.  Upon such  declaration  the  principal  and interest  shall be due and
payable  immediately.  If an Event of Default  specified in clause (f) or (g) of
Section 6.1 occurs,  such an amount shall ipso facto  become and be  immediately
due and payable  without any declaration or other act on the part of the Trustee
or any  Holder.  The  Holders  of a  majority  in  principal  amount of the then
outstanding  Securities  by  written  notice  to  the  Trustee  may  rescind  an
acceleration  and its consequences if the rescission would not conflict with any
judgment or decree and if all existing Events of Default  (except  nonpayment of
principal or interest  that has become due solely  because of the  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 to  collect  the  payment  of  principal  or  interest  on the
Securities or to enforce the  performance  of any provision of the Securities or
this Indenture.

     The Trustee may  maintain a  proceeding  even if it does not possess any of
the  Securities  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
occurring  upon an Event of  Default  shall  not  impair  the right or remedy or
constitute a waiver of or acquiescence in the Event of Default. All remedies are
cumulative to the extent permitted by law.

     Section 6.4 Waiver of Past Defaults.

     Holders  of  a  majority  in  principal  amount  of  the  then  outstanding
Securities  by notice to the Trustee  may waive an existing  Default or Event of
Default and its consequences, except a continuing Default or Event of Default in
the  payment  of  the   principal  or  interest  on  any  Security   held  by  a
non-consenting  Holder. Upon any such waiver, such Default shall cease to exist,
and any Event of Default  arising  therefrom  shall be deemed to have been cured
for  every  purpose  of this  Indenture.  No such  waiver  shall  extend  to any
subsequent or other Default or impair any right  consequent on any subsequent or
other Default.


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     Section 6.5 Control by Majority.

     The Holders of a majority in principal amount of the outstanding Securities
shall have the right to direct  the time,  method  and place of  conducting  any
proceeding  for any remedy  available to the Trustee or exercising  any trust or
power  conferred on such  Trustee;  provided  that (a) such  direction is not in
conflict with any rule of law or with this  Indenture,  (b) the Trustee may take
any other action it deems proper that is not  inconsistent  with such  direction
and (c) such  Holders  have  offered to the  Trustee  indemnity  as  provided in
Section 7.1(e).

     Section 6.6 Limitation on Suits.

     No Holder of any of the  Securities  shall have any right to institute  any
proceeding,  judicial or otherwise,  with respect to this Indenture,  or for the
appointment  of a  receiver  or  trustee  or for any  other  remedy  under  this
Indenture, unless:

     (a) such Holder has previously  given notice to the Trustee of a continuing
Event of Default;

     (b) the Holders of not less than 25% in principal amount of the outstanding
Securities have made written request to the Trustee to institute  proceedings in
respect  of such  Event  of  Default  in its  own  name as  Trustee  under  this
Indenture;

     (c) such Holder or Holders have offered to the Trustee reasonable indemnity
against the costs,  expenses and  liabilities to be incurred in compliance  with
such request;

     (d) the Trustee for 30 days after its receipt of such  notice,  request and
offer of indemnity has failed to institute any such proceeding; and

     (e) no direction  inconsistent  with such written request has been given to
the Trustee  during such 30-day period by the Holders of a majority in principal
amount of the outstanding Securities.

     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,  the right of any
Holder of a  Security  to receive  payment  of  principal  and  interest  on the
Security,  on or after the respective due dates expressed in the Security, 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 the Holder.


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     Section 6.8 Collection Suit by Trustee.

     If an Event of Default  specified  in  Section  6.1(a) or (b) occurs and is
continuing, the Trustee is authorized to recover judgment in its own name and as
trustee of an express  trust  against the  Company or any other  obligor for the
whole amount of principal and interest  remaining  unpaid on the  Securities and
interest on overdue  principal  and,  to the extent  lawful,  interest  and such
further  amount  as shall be  sufficient  to cover the  costs  and  expenses  of
collection,  including the reasonable compensation,  expenses, disbursements and
advances of the Trustee, its agents and counsel.

     Section 6.9 Trustee May File Proofs of Claim.

     The Trustee is  authorized to 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 (or any
other obligor upon the  Securities),  its creditors or its property and shall be
entitled and  empowered to collect,  receive and  distribute  any money or other
property payable or deliverable on any such claims and any custodian in any such
judicial proceeding is hereby authorized by each Holder to make such payments to
the Trustee,  and if the Trustee  shall  consent to the making of such  payments
directly  to the  Holders,  to pay to the  Trustee  any amount due to it for the
reasonable  compensation,  expenses,  disbursements and advances of the Trustee,
its agents and counsel,  and any other amounts due the Trustee under Section 7.7
hereof.  To the  extent  that the  payment of any such  compensation,  expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee  under  Section 7.7 hereof out of the estate in any such
proceeding, shall be denied for any reason, payment of the same shall be secured
by a Lien on,  and shall be paid out of, any and all  distributions,  dividends,
money, securities and other properties that the Holders of the Securities may be
entitled to receive in such proceeding  whether in liquidation or under any plan
of reorganization or arrangement or otherwise. 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 Securities 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 pursuant to this Article 6,  it shall pay
out the money in the following order:

     First:  to the  Trustee,  its agents and  attorneys  for  amounts due under
Section 7.7,  including  payment of all  compensation,  expense and  liabilities
incurred,  and all advances  made,  by the Trustee and the costs and expenses of
collection.


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

     Third: to the Company or to such party as a court of competent jurisdiction
shall direct.

     The  Trustee  may fix a record  date and  payment  date for any  payment to
Holders.

     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 a
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  attorney' fees,
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 a Holder pursuant to Section 6.7,
or a  suit  by  Holders  of  more  than  10% in  principal  amount  of the  then
outstanding Securities.


                                   ARTICLE VII
                                     TRUSTEE

     Section 7.1 Duties of a Trustee.

     (a) If an Event of Default  has  occurred  and is  continuing,  the Trustee
shall exercise such of 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 his own affairs.

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

     (i) the duties of the  Trustee  shall be  determined  solely by the express
provisions of this Indenture,  and the Trustee  undertakes to perform only those
duties that are specifically  set forth in this Indenture and no others,  and no
implied  covenants or obligations  shall be read into this Indenture against the
Trustee.

     (ii) 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;  provided,  however,  that the
Trustee shall examine the certificates and opinions to determine  whether or not
they conform to the requirements of this Indenture.

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

     (i) this  paragraph  does not limit the  effect  of  paragraph  (b) of this
Section 7.1;

     (ii) 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

     (iii) 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 to Section 6.5.

     (d) Whether or not therein  expressly so provided,  every provision of this
Indenture that in any way relates to the Trustee is subject to the provisions of
this Section 7.1.

     (e) No provision of this  Indenture  shall require the Trustee to expend or
risk its own funds or incur any liability. The Trustee may refuse to perform any
duty or exercise any right or power unless it receives indemnity satisfactory to
it against any loss, liability or expense.

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

     (g) The Trustee shall have no  responsibility  for making any  calculations
hereunder,  including,  without limitation,  the amount of interest owing on the
Securities under any of the provisions of the Registration Rights Agreement. The
Company shall  deliver to the Trustee an Officers'  Certificate  specifying  any
additional interest due under the Registration Rights Agreement on or before the
15th day prior to an interest payment date.

     Section 7.2 Rights of Trustee.

     (a) The Trustee may rely and shall be fully  protected  in relying upon any
document  believed by it to be genuine and to have been signed or  presented  by
the proper Person. 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
such Officers'  Certificate or Opinion of Counsel.  The Trustee may consult with
counsel and the written  advice of such counsel or any Opinion of Counsel  shall
be full and complete  authorization  and protection from liability in respect of
any action  taken,  suffered  or omitted  by it  hereunder  in good faith and in
reliance thereon.

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     (c) The Trustee may act through agents and shall not be responsible for the
misconduct or negligence of any agent appointed and monitored 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 conferred upon it by this Indenture.

     (e) Unless otherwise  specifically provided in this Indenture,  any demand,
request,  direction or notice from the Company  shall be sufficient if signed by
an Officer of the Company.

     Section 7.3 Individual Rights of Trustee.

     The Trustee in its individual or any other capacity may become the owner or
pledgee of Securities  and may otherwise  deal with the Company or any Affiliate
of the Company  with the same rights it would have if it were not  Trustee.  Any
Agent  may do the same with like  rights;  provided,  however,  the  Trustee  is
subject to Sections 7.10 and 7.11.

     Section 7.4 Trustee's Disclaimer.

     The Trustee makes no  representation as to the validity or adequacy of this
Indenture, the Securities or any documents relating to the Securities.  It shall
not be accountable  for the Company's use of the proceeds from the Securities or
any  money  paid to the  Company  or upon the  Company's  discretion  under  any
provision  hereof. It shall not be responsible for the use or application of any
money  received  by any Paying  Agent other than the Trustee and it shall not be
responsible  for  any  statement  or  recital  herein  or any  statement  in the
Securities or any other  document in connection  with the sale of the Securities
or pursuant to this Indenture, other than its certificate of authentication.

     Section 7.5 Notice of Defaults.

     If a Default or Event of  Default  occurs  and is  continuing  and if it is
known to the Trustee,  the Trustee shall mail to Holders a notice of the Default
or Event of Default  within 90 days  after it  occurs.  A Default or an Event of
Default shall not be considered  known to the Trustee  unless it is a Default or
Event of Default under Section  6.1(a) or (b) or the Trustee shall have received
notice thereof, in accordance with this Indenture,  from the Company or from the
Holders of a majority in principal amount of the outstanding Securities,  and in
the  absence of such  notice the Trustee  may  conclusively  assume  there is no
Default or Event of Default. Except in the case of a Default or Event of Default
in payment of principal or interest on any  Security  (including  the failure to
make a mandatory  redemption  pursuant  hereto),  the Trustee may  withhold  the
notice if and so long as a committee of its  Responsible  Officers in good faith
determines that withholding the notice is in the interests of Holders.


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     Section 7.6 Reports by Trustee to Holders.

     Within 60 days after each  August 1  beginning  with the August 1 following
the date  hereof,  the Trustee  shall mail to Holders a brief report dated as of
such reporting  date that complies with TIA S 313(a) (but if no event  described
in TIA S 313(a) has occurred within the 12 months  preceding the reporting date,
no report need be transmitted). The Trustee also shall comply with TIA S 313(n).
The Trustee shall also transmit by mail all reports as required by TIA S 313(c).

     At the  time of its  mailing  to  Holders,  a copy of each  report  sent to
Holders  shall  be  filed  with the SEC and each  stock  exchange  on which  the
Securities are listed.  The Company shall  promptly  notify the Trustee when the
Securities are listed on any stock exchange.

     Section 7.7 Compensation and Indemnity.

     The  Company  shall  pay  to the  Trustee  from  time  to  time  reasonable
compensation  for its acceptance of this Indenture and services  hereunder.  The
Trustee's  compensation  shall not be  limited by any law on  compensation  of a
trustee of an express  trust.  The Company  shall  reimburse  the  Trustee  upon
request for all reasonable disbursements, advances and expenses incurred or made
by it. Such expenses  shall include the reasonable  compensation,  disbursements
and expenses of the Trustee's agents and counsel.

     The  Company  shall  indemnify  the  Trustee  against  any and all  losses,
liabilities or expenses  incurred by it arising out of or in connection with the
acceptance or administration  of its duties under this Indenture,  except as set
forth in the next  paragraph.  The Trustee shall notify the Company  promptly of
any claim for which it may seek  indemnity.  The Company shall defend the claim,
and the Trustee  shall  cooperate in the defense.  The Trustee may have separate
counsel,  and the Company  shall pay the  reasonable  fees and  expenses of such
counsel.  The Company need not pay for any settlement  made without its consent,
which consent shall not be unreasonably withheld.

     The Company need not reimburse any expense or indemnify against any loss or
liability incurred by the Trustee through its own negligence or bad faith.

     To secure the Company's  payment  obligations in this Section,  the Trustee
shall have a Lien with  priority  over the  Securities  on all money or property
held or collected by the Trustee, except that held in trust to pay principal and
interest on particular Securities.  Such Lien shall survive the satisfaction and
discharge of this Indenture.

     When the  Trustee  incurs  expenses or renders  services  after an Event of
Default  specified  in  Section  6.1(f)  or (g)  occurs,  the  expenses  and the
compensation   for  the  services  are  intended  to   constitute   expenses  of
administration under any Bankruptcy Law.


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     Section 7.8 Replacement of Trustee.

     A  resignation  or removal of the  Trustee and  appointment  of a successor
Trustee shall become effective only upon the successor  Truste's  acceptance of
appointment as provided in this Section 7.8.

     The Trustee may resign at any time and be discharged  from the trust hereby
created by so  notifying  the  Company.  The Holders of a majority in  principal
amount of the then outstanding Securities may remove the Trustee by so notifying
the Trustee and the Company. The Company may remove the Trustee if:

     (a) the Trustee fails to comply with Section 7.10;

     (b) the  Trustee is  adjudged a bankrupt  or an  insolvent  or an order for
relief is entered with respect to the Trustee under any Bankruptcy Law;

     (c) a  Custodian  or public  officer  takes  charge of the  Trustee  or its
property; or

     (d) the Trustee becomes incapable of acting.

     If the Trustee  resigns or is removed or if a vacancy  exists in the office
of Trustee  for any  reason,  the  Company  shall  promptly  appoint a successor
Trustee.  Within one year after the successor Trustee takes office,  the Holders
of a majority in principal amount of the then outstanding Securities may appoint
a successor Trustee to replace the successor Trustee appointed by the Company.

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

     If the Trustee  after  written  request by any Holder who had been a Holder
for at least six months  fails to comply  with  Section  7.10,  such  Holder may
petition any court of competent  jurisdiction for the removal of the Trustee and
the appointment of 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 of the rights,  powers and duties of the Trustee under this  Indenture.
The successor Trustee shall mail a notice of its succession to the Holders.  The
retiring  Trustee shall promptly  transfer all property held by it as Trustee to
the successor  Trustee,  provided all sums owing to the Trustee  hereunder  have
been paid and subject to the Lien  provided for in Section 7.7.  Notwithstanding
replacement  of  the  Trustee  pursuant  to  this  Section  7.8,  the  Company's
obligations  under  Section  7.7 hereof  shall  continue  for the benefit of the
retiring Trustee.


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     Section 7.9 Successor Trustee by Merger, etc.

     If the Trustee  consolidates,  merges or converts into, or transfers all or
substantially all of its corporate trust business to, another  corporation,  the
successor corporation without any further act shall be the successor Trustee.

     Section 7.10 Eligibility; Disqualification.

     There shall at all times be a Trustee hereunder that shall be a corporation
organized and doing  business  under the laws of the United States of America or
of any state thereof  authorized under such laws to exercise  corporate  trustee
power,  shall be  subject  to  supervision  or  examination  by federal or state
authority and shall have a combined  capital and surplus of at least $10 million
as set forth in its most recent published annual report of condition.

     This Indenture  shall always have a Trustee who satisfies the  requirements
of TIA S  310(a)(1).  The  Trustee  is subject  to TIA S 310(b),  including  the
optional provision permitted by the second sentence of TIA S 310(b)(9).

     Section 7.11 Preferential Collection of Claims Against Company.

     The Trustee is subject to TIA S 311(a), excluding any creditor relationship
listed in TIA S 311(b).  A Trustee who has resigned or has been removed shall be
subject to TIA S 311(a) to the extent indicated therein.

     Section 7.12 No Obligation of the Trustee.

     (a)  The  Trustee  shall  have  no  responsibility  or  obligation  to  any
beneficial  owner of a Global  Security or a  participant  in the  Depository or
other Person with respect to the  accuracy of the records of the  Depository  or
its nominee or of any participant, with respect to any ownership interest in the
Securities  or  with  respect  to  the  delivery  to  any  participant,  member,
beneficial  owner or other  Person  (other  than the  Depository)  of any notice
(including any notice of redemption) or the payment of any amount, under or with
respect to such Securities.  All notices and  communications  to be given to the
Holder and all  payments  to be made to Holders  under the  Securities  shall be
given or made only to or upon the order of the  registered  Holders (which shall
be the Depository or its nominee in the case of a Global  Security).  The rights
of beneficial  owners in any Global  Security may only be exercised  through the
Depository subject to the Applicable Procedures.  The Trustee may rely and shall
be fully protected in relying upon information  furnished by the Depository with
respect to its members, participants and any beneficial owners.

     (b) The Trustee shall have no  obligation or duty to monitor,  determine or
inquire as to compliance  with any  restrictions  on transfer  imposed under the
Indenture or under  applicable  law with respect to any transfer of any interest
in  any  security   (including  any  transfers   between  or  among   Depository
participants, members or beneficial owners in any Global Security) other than to
require delivery of such certificates and other documentation or

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     evidence as are expressly  required by, and to do so if and when  expressly
required  by, the terms of the  Indenture,  and to examine the same to determine
substantial compliance as to form with the express requirements hereof.


                                  ARTICLE VIII
                             DISCHARGE OF INDENTURE

     Section 8.1 Termination of Company's Obligation.

     This  Indenture  shall  cease  to be of  further  effect  (except  that the
Company's  obligations  under Section 7.7 and 8.4, and the Company's,  Trustee's
and  Paying  Agent's  obligations  under  Section  8.3 shall  survive)  when all
outstanding Securities theretofore  authenticated and issued have been delivered
(other than  destroyed,  lost or stolen  Securities  that have been  replaced or
paid) to the Trustee for  cancellation and the Company has paid all sums payable
by the Company  under this  Indenture.  In addition,  subject to the  conditions
described below, at the Company's option,  either (a) the Company will be deemed
to have been discharged from their obligations with respect to the Securities on
the 31st day after the applicable conditions set forth below have been satisfied
or (b) the Company shall cease to be under any obligation to comply with Article
4 of this Indenture,  at any time after the conditions set forth below have been
satisfied:

     (i) the Company has  deposited or caused to be deposited  irrevocably  with
the Trustee as trust funds in trust,  specifically  pledged as security for, and
dedicated  solely to, the benefit of the  Holders  (A) money or (B)  noncallable
U.S. Government Obligations, which through the payment of interest and principal
in respect  thereof in  accordance  with their terms,  will  provide  either (i)
payment  in full  of  principal,  premium  on,  if any,  and  interest  on,  the
outstanding  Securities  as of the date of such  payment,  or (II)  (without any
reinvestment  of such interest or principal),  not later than one day before the
due date of any payment, money or (C) a combination of (A) and (B), in an amount
sufficient,  in the  opinion  (with  respect  to (B) and  (C))  of a  nationally
recognized  firm  of  independent  public  accountants  expressed  in a  written
certification  thereof  delivered  to the  Trustee at or before the time of such
deposit,  to pay and discharge each  installment of principal of, premium on, if
any, and interest on, the outstanding  Securities on the dates such installments
are due;

     (ii) no Default or Event of Default has occurred and is  continuing  on the
date of such  deposit  or  shall  occur as a result  of such  deposit,  and such
deposit  shall not result in a breach or violation  of, or  constitute a Default
under,  any other  instrument to which the Company is a party to or is bound, as
evidenced  to the Trustee in an Officers'  Certificate  delivered to the Trustee
concurrently with such deposit;

     (iii) the Company has paid or duly provided for payment of all amounts then
due or to become due to the Trustee  pursuant  to Section 7.7 of the  Indenture;
and


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     (iv) the Company has  delivered  to the Trustee an  Officers'  Certificate,
stating that there has been  compliance with all conditions  precedent  provided
for in the  Indenture  relating  to  the  satisfaction  and  discharge  of  this
Indenture.

     If the Company  selects option (a) above,  this Indenture shall cease to be
of further effect on the 31st day after the conditions set forth above have been
satisfied (except as provided in this paragraph),  and the Trustee, on demand of
the Company, shall execute proper instruments acknowledging  confirmation of and
discharge  under this  Indenture  and the  Securities;  provided,  however,  the
Company's  obligations  in Sections  2.3, 2.4, 2.5, 2.6, 4.1, 4.6, 7.7, 7.8, 8.3
and 8.4, and the Trustee's and Paying  Agent's  obligations in Section 8.3 shall
survive until the Securities  are no longer  outstanding.  Thereafter,  only the
Company's  obligations under Sections 7.7 and 8.4 and the Company's,  Trustee's,
and Paying Agent's  obligations under Section 8.3 shall survive.  If the Company
elects  option (b) above,  the Company's  obligations  under Article 4 hereunder
shall  terminate  upon  the  satisfaction  of  the  conditions,  and  all  other
obligations  shall  survive  until the  Securities  are no  longer  outstanding.
Thereafter,  only the Company's  obligations  under Sections 7.7 and 8.4 and the
Company's,  Trustee's  and Paying  Agent's  obligations  under Section 8.3 above
shall survive.

     After such  irrevocable  deposit is made  pursuant to this  Section 8.1 and
satisfaction  of the  other  conditions  set forth  herein,  the  Trustee,  upon
request, shall acknowledge in writing the discharge of the Company's obligations
under this Indenture except for those surviving obligations specified above.

     In order to have money  available on a payment date to pay  principal of or
interest on the Securities,  the U.S. Government Obligations shall be payable as
to  principal  or interest at least one Business Day before such payment date in
such amounts as will provide the necessary money.  U.S.  Government  Obligations
shall not be callable at the issuer's option.

     Section 8.2 Application of Trust Money.

     The Trustee or a trustee  satisfactory to the Trustee and the Company shall
hold in trust money or U.S. Government Obligations deposited with it pursuant to
Section  8.1.  It shall  apply  the  deposited  money  and the  money  from U.S.
Government  Obligations  through the Paying  Agent and in  accordance  with this
Indenture to the payment of principal and interest on the Securities.

     Section 8.3 Repayment to Company.

     To the extent permitted by applicable law, the Trustee and the Paying Agent
shall  promptly  pay to the Company  upon  written  request any excess  money or
securities  held by them  at any  time in  excess  of  amounts  required  to pay
principal of or interest on the Securities.

     The Trustee and the Paying  Agent  shall pay to the  Company  upon  written
request any money held by them for the  payment of  principal  or interest  that
remains

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     unclaimed  for one year after the date upon which such  payment  shall have
become due; provided,  however, that the Company shall have either caused notice
of such  payment to be mailed to each  Holder  entitled  thereto no less than 30
days before such  repayment  or within such  period  shall have  published  such
notice in a financial newspaper of widespread circulation published in New York,
New York. After payment to the Company,  Holders entitled to the money must look
to the Company for payment as general  creditors unless an applicable  abandoned
property law  designates  another  person,  and all liability of the Trustee and
such Paying Agent with respect to such money shall cease.

     Section 8.4 Reinstatement.

     If the  Trustee  or  Paying  Agent is  unable  to apply  any  money or U.S.
Government  Obligations  in  accordance  with Section 8.2 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
Company's  obligations  under this Indenture and the Securities shall be revived
and  reinstated as though no deposit had occurred  pursuant to Section 8.1 until
such time as the Trustee or Paying Agent is permitted to apply all such money or
U.S. Government  Obligations in accordance with Section 8.2; provided,  however,
that if the Company has made any  payment of  interest  on or  principal  of any
Securities because of the reinstatement of its obligations, the Company shall be
subrogated  to the rights of the  Holders  of such  Securities  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 and the Trustee  may amend this  Indenture  and the  Securities
without the consent of any Holder:

     (a) to cure any ambiguity, defect or inconsistency;

     (b) to comply with Section 5.1;

     (c) to provide for  uncertificated  Securities in addition to  certificated
Securities;

     (d) to make any change  that does not  adversely  affect  the legal  rights
hereunder of any Holder; and

     (e) to comply with  requirements  of the SEC in order to effect or maintain
the qualification of this Indenture under the TIA.

     Upon the request of the Company accompanied by a resolution of its Board of
Directors authorizing the execution of any such Supplemental  Indenture and upon
receipt by

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     the Trustee of the documents  described in Section 9.6 hereof,  the Trustee
shall  join with the  Company in the  execution  of any  Supplemental  Indenture
authorized  or permitted by the terms of this  Indenture and to make any further
appropriate agreements and stipulations which may be therein contained,  but the
Trustee shall not be obligated to enter into such  Supplemental  Indenture which
affects its own rights, duties or immunities under this Indenture or otherwise.

     Section 9.2 With Consent of Holders.

     Except as provided  below in this  Section 9.2, the Company and the Trustee
may amend this  Indenture  or the  Securities  with the  written  consent of the
Holders  of at least a  majority  in  principal  amount of the then  outstanding
Securities. The Holders of a majority in principal amount of the Securities then
outstanding  may, or the Trustee  with the written  consent of the Holders of at
least a majority in principal  amount of the then  outstanding  Securities  may,
waive  compliance in a particular  instance by the Company with any provision of
this Indenture or the Securities.

     Upon the request of the Company,  accompanied  by a resolution of its Board
of Directors authorizing the execution of any such Supplemental  Indenture,  and
upon the filing with the Trustee of evidence  satisfactory to the Trustee of the
consent of the  Holders as  aforesaid,  and upon  receipt by the  Trustee of the
documents  described  in Section  9.6 hereof,  the  Trustee  shall join with the
Company in the execution of such Supplemental Indenture unless such Supplemental
Indenture  affects the  Trustee's own rights,  duties or  immunities  under this
Indenture or  otherwise,  in which case the Trustee may in its  discretion,  but
shall not be obligated to, enter into such Supplemental Indenture.

     It shall not be necessary for the consent of the Holders under this Section
to approve the particular form of any proposed amendment or waiver, but it shall
be sufficient if such consent approves the substance thereof.

     After an  amendment or waiver under this  Section  becomes  effective,  the
Company  shall mail to the Holders of each  Security  affected  thereby a notice
briefly  describing the amendment or waiver.  Any failure of the Company to mail
such notice,  or any defect therein,  shall not,  however,  in any way impair or
affect the validity of any such  Supplemental  Indenture  or waiver.  Subject to
Sections 6.4 and 6.7 hereof,  the Holders of a majority in  principal  amount of
the Securities then outstanding may waive compliance in a particular instance by
the Company with any provision of this  Indenture or the  Securities,  provided,
however,  that  without the consent of each Holder  affected,  an  amendment  or
waiver  under this  Section may not (with  respect to any  Securities  held by a
non-consenting Holder):

     (a) reduce the principal amount of Securities whose Holders must consent to
an amendment or waiver;

     (b)  reduce  the  rate of or  change  the  time for  payment  of  interest,
including default interest, on any Security;


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     (c) reduce the principal of or change the fixed maturity of any Security or
alter the optional or mandatory redemption  provisions or the price at which the
Company  shall offer to purchase  such  Securities  pursuant to Sections 3.7 and
4.10 hereof;

     (d) make any  Security  payable  in money  other  than  that  stated in the
Security;


     (e) make any change in Section  6.4 or 6.7  hereof or in this  sentence  of
this Section 9.2; or

     (f) waive a Default in the payment of principal of, premium or interest on,
or redemption payment with respect to, any Security.

     Section 9.3 Compliance with Trust Indenture Act.

     Every amendment to this Indenture or the Securities shall be set forth in a
Supplemental Indenture that complies with the TIA as then in effect.

     Section 9.4 Revocation and Effect of Consents.

     Until an amendment or waiver becomes effective, a consent to it by a Holder
of a Security is a continuing  consent by the Holder and every subsequent Holder
of a  Security  or portion of a  Security  that  evidences  the same debt as the
consenting Holder's Security, even if notation of the consent is not made on any
Security;  provided,  however,  that any such  Holder or  subsequent  Holder may
revoke the consent as to his or her  security if the  Trustee  receives  written
notice of revocation before the date the waiver or amendment becomes  effective.
An  amendment  or waiver  becomes  effective  in  accordance  with its terms and
thereafter binds every Holder.

     The  Company  may fix a record  date for  determining  which  Holders  must
consent to such  amendment or waiver.  If the Company  fixes a record date,  the
record  date  shall be  fixed  at (a) the  later  of 30 days  before  the  first
solicitation  of such  consent  or the date of the most  recent  list of Holders
furnished to the Trustee before such  solicitation  pursuant to Section 2.05, or
(b) such other date as the Company shall designate.

     Section 9.5 Notation on or Exchange of Securities.

     The Trustee may place an appropriate  notation about an amendment or waiver
on any  Security  thereafter  authenticated.  The  Company in  exchange  for all
Securities  may issue and the Trustee shall  authenticate  new Securities of the
same series that reflect the amendment or waiver.

     Failure to make the  appropriate  notation  or issue a new  Security of the
same  series  shall not affect the  validity  and  effect of such  amendment  or
waiver.


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     Section 9.6 Trustee to Sign Amendments, etc.

     The Trustee shall sign any amendment or Supplemental  Indenture  authorized
pursuant  to this  Article 9 if the  amendment  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  or  refusing  to sign such
amendment or Supplemental  Indenture,  the Trustee shall be entitled to receive,
and,  subject to Section  7.1,  shall be fully  protected  in relying  upon,  an
Officers' Certificate and an Opinion of Counsel as conclusive evidence that such
amendment  or  Supplemental   Indenture  is  authorized  or  permitted  by  this
Indenture,  that it is not inconsistent  herewith, and that it will be valid and
binding upon the Company in accordance with its terms.  The Company may not sign
an amendment or Supplemental Indenture until the Board of Directors approves it.

                                    ARTICLE X
                                   CONVERSION

     Section 10.1 Right to Convert.

     (a) Subject to and upon  compliance  with the provisions of this Indenture,
at any time on or after 270 days after the Issue Date and on or before maturity,
each Holder shall have the right, at its option, to convert the principal amount
of any Security,  or any portion of such  principal  amount which is $1,000 or a
whole multiple thereof,  into, at the Company's option, either (i) cash, payable
by the  Company to the Paying  Agent for the benefit of such Holder in an amount
equal to the Current  Market  Price,  as of the  conversion  date, of the Common
Stock to which the Securities would otherwise be converted,  or (ii) that number
of fully paid and  nonassessable  shares of Common  Stock (as such shares  shall
then be constituted)  obtained by dividing the principal  amount of the Security
or portion thereof  surrendered for conversion by the conversion price in effect
at such time,  or (iii) a  combination  of cash and Common Stock in  proportions
determined by the Company in its sole discretion;  provided,  however,  that the
Company's  option to convert  Securities into cash under  Section 10.1(a)(i)  or
into a combination  of cash and Common Stock under  Section 10.1(a)(iii),  shall
terminate at the close of business on the date the Company's  charter is amended
to increase  the number of shares of  authorized  Common  Stock to at least that
number of shares sufficient to reserve for the conversion of all the Notes.

     (b)  Notwithstanding  anything in this  Section 10.1 to the  contrary,  the
right to convert  with  respect to any  Security  or portion of a Security  that
shall be called for redemption or delivered for  repurchase,  shall terminate at
the close of  business  on the date fixed for  redemption  of such  Security  or
portion of a Security on the second  trading  day  preceding a Change in Control
Payment  Date,  as the case may be,  unless the Company shall default in payment
due upon redemption or repurchase thereof.

     (c) A holder of  Securities  is not  entitled  to any rights of a holder of
Common Stock until such holder has converted his Securities to Common Stock, and
only to the extent such  Securities  are deemed to have been converted to Common
Stock under this Article 10.


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     Section 10.2 Exercise of Conversion Privilege;  Issuance of Common Stock on
Conversion; No Adjustment for Interest or Dividends.

     In order to exercise the conversion  privilege,  the Holder of any Security
to be  converted  in  whole  or in part  shall  surrender  such  Security,  duly
endorsed,  at an office or agency  maintained by the Company pursuant to Section
2.3,  accompanied by the funds,  if any,  required by the last paragraph of this
Section 10.2,  and shall give written  notice of conversion in the form provided
on the  Securities  (or such other notice that is  acceptable to the Company) to
the  Company at such  office or agency  that the Holder  elects to convert  such
Security or the portion  thereof  specified in such notice,  stating the name or
names (with  address) in which the  certificate  or  certificates  for shares of
Common Stock, if any, that shall be issuable on such conversion shall be issued.
So long as the Company's option to convert Securities into cash or a combination
of cash and Common Stock exists, then within five business days after receipt of
such Holder's notice of conversion,  the Company shall notify such Holder of the
Company's  election to convert the  Securities to cash or,  Common  Stock,  or a
combination  of cash and Common Stock.  Holder shall then deliver to the Company
any transfer taxes required pursuant to Section 10.7.  Each Security surrendered
for conversion shall,  unless the shares issuable on conversion are to be issued
in the same name as the registration  under such Security,  be duly endorsed by,
or be accompanied by instruments of transfer in form satisfactory to the Company
duly  executed by, the Holder or his duly  authorized  attorney.  Holder may not
withdraw its  conversion  notice after  receipt of the  Company's  notice of its
election regarding conversion.

     As promptly as  practicable  after the  surrender of such  Security and the
receipt of such notice and funds, if any, as aforesaid, (a) if the conversion is
for Common  Stock,  the Company  shall issue and shall deliver at such office or
agency  to  such  Holder,  or  on  his  written  order,  (i)  a  certificate  or
certificates  for the number of full shares issuable upon the conversion of such
Security or portion  thereof in accordance  with the provisions of this Article,
and (ii) a check or cash in respect of any  fractional  interest in respect of a
share of Common Stock arising upon such  conversion as provided in Section 10.3,
or (b) if the  conversion is for cash or a combination of cash and Common Stock,
the Company shall,  one business day after its notice to Holder of the Company's
election regarding conversion, deposit with Paying Agent money sufficient to pay
the  conversion  price for, and all accrued  interest on, the  Securities  being
converted to cash.  In case any Security of a  denomination  greater than $1,000
shall be  surrendered  for partial  conversion,  and subject to  Article 2,  the
Company shall execute and the Trustee shall  authenticate and deliver to or upon
the written order of the holder of the Note so  surrendered,  without  charge to
him, a new Security or Securities in  authorized  denominations  in an aggregate
principal amount equal to the unconverted portion of the surrendered Security.

     Each conversion  shall be deemed to have been effected on the date on which
such Security shall have been  surrendered  (accompanied  by the funds,  if any,
required by the last paragraph of this  Section 10.2) and such notice shall have
been received by the Company, as aforesaid, and, if the conversion is for Common
Stock,  the person in whose name any certificate or  certificates  for shares of
Common  Stock shall be  issuable  upon such  conversion  shall be deemed to have
become on said date the  holder of  record of the  shares  represented  thereby;
provided,  however,  that any such surrender on any date when the stock transfer
books of the Company shall be closed shall  constitute  the person in whose name
the certificates are to be

053113\1008\02764\979QGT85.OTH
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     issued as the record  holder  thereof  for all  purposes on the next day on
which such stock transfer books are open,  but such  conversion  shall be at the
conversion  price in effect on the date upon which such Security shall have been
surrendered.

     Any  Security or portion  thereof  surrendered  for  conversion  during the
period from the close of business  on the record date for any  interest  payment
date to the opening of business on such interest payment date shall (unless such
Security  or  portion  thereof  being  converted  shall  have  been  called  for
redemption  on a date in such  period)  be  accompanied  by  payment,  in  funds
acceptable to the Company,  of an amount equal to the interest otherwise payable
on such interest payment date on the principal amount being converted; provided,
however,  that no such  payment need be made if there shall exist at the time of
conversion  a default in the payment of interest  on the  Securities.  An amount
equal to such payment shall be paid by the Company on such interest payment date
to the holder of such  Security at the close of  business  on such record  date;
provided,  however, that if the Company shall default in the payment of interest
on such interest  payment date, such amount shall be paid to the person who made
such  required  payment.  Except  as  provided  above in this  Section 10.2,  no
adjustment shall be made for interest  accrued on any Security  converted or for
dividends on any shares issued upon the  conversion of such Security as provided
in this Article 10. If any Security or portion thereof which has been called for
redemption  on a date during the period from the close of business on the record
date for any interest  payment date to the opening of business on such  interest
payment date is surrendered for conversion during such period, no interest shall
be payable to the holder of such Security on account of such Security or portion
thereof.

     Section 10.3 Cash Payments in Lieu of Fractional Shares.

     No  fractional  shares of  Common  Stock or scrip  representing  fractional
shares shall be issued upon conversion of Securities.  If more than one Security
shall be surrendered  for conversion at one time by the same holder,  the number
of full shares which shall be issuable upon conversion  shall be computed on the
basis of the aggregate principal amount of the Securities (or specified portions
thereof to the extent permitted hereby) so surrendered.  If any fractional share
of Common  Stock  would be  issuable  upon the  conversion  of any  Security  or
Securities, the Company shall make an adjustment therefor in cash at the current
market value thereof.  The current market value of a share of Common Stock shall
be the  Closing  Price on the day (that is not a Legal  Holiday  as  defined  in
Section  12.8) before the day on which the  Securities  (or  specified  portions
thereof)  are deemed to have been  converted  and such  Closing  Price  shall be
determined as provided in subsection (f) of Section 10.5.

     Section 10.4 Conversion Price.

     The  conversion  price  shall  be as  specified  in the  form  of  Security
hereinabove set forth, subject to adjustment as provided in this Article.


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     Section 10.5 Adjustment of Conversion Price.

     (a) In case the Company shall (i) pay a dividend,  or make a  distribution,
in  shares  of its  Common  Stock  on  its  Common  Stock,  (ii)  subdivide  its
outstanding  Common Stock into a greater number of shares,  or (iii) combine its
outstanding  Common Stock into a smaller number of shares,  the conversion price
in effect  immediately prior thereto shall be adjusted so that the holder of any
Security thereafter  surrendered for conversion shall be entitled to receive the
number of shares of Common Stock of the Company that he would have owned or have
been  entitled to receive  after the  happening  of any of the events  described
above had such Security been converted  immediately before the happening of such
event. An adjustment made pursuant to this subsection (a) shall become effective
immediately  after the record  date in the case of a dividend  and shall  become
effective  immediately  after the effective  date in the case of  subdivision or
combination.

     (b) In case the Company  shall  issue  rights or warrants to all holders of
its Common Stock  entitling them (for a period expiring within 45 days after the
record date  mentioned  below) to  subscribe  for or purchase  Common Stock at a
price per share less than the Current  Market Price per share of Common Stock at
the record date for the  determination of stockholders  entitled to receive such
rights or warrants,  except as provided in subsection (f) below,  the conversion
price in effect  immediately  prior  thereto  shall be adjusted so that the same
shall equal the price  determined by multiplying the conversion  price in effect
immediately before the date of issuance of such rights or warrants by a fraction
of which the numerator shall be the number of shares of Common Stock outstanding
on the date of issuance  of such  rights or  warrants  plus the number of shares
which the  aggregate  offering  price of the total  number of shares so  offered
would purchase at such Current Market Price (determined by multiplying the total
number of shares by the  exercise  price of such rights or warrants and dividing
the  product  so  obtained  by the  Current  Market  Price),  and of  which  the
denominator  shall be the number of shares of Common  Stock  outstanding  on the
date of issuance of such rights or warrants plus the number of additional shares
of Common Stock offered for  subscription or purchase.  Such adjustment shall be
made  successively  whenever any such rights or warrants  are issued,  and shall
become  effective  immediately  after such  record  date.  Except as provided in
subsection (f) below, in determining  whether any rights or warrants entitle the
holders to  subscribe  for or purchase  shares of Common Stock at less than such
Current Market Price,  and in determining  the aggregate  offering price of such
shares of Common  stock,  there shall be taken into  account  any  consideration
received  by the  Company  for  such  rights  or  warrants,  the  value  of such
consideration, if other than cash, to be determined by the Board of Directors of
the  Company  whose  determination  shall  be  conclusive  and  described  in  a
certificate filed with the Trustee.  Upon the expiration of any right or warrant
to purchase  Common Stock the issuance of which resulted in an adjustment in the
conversion  price pursuant to this  subsection (b), if any such right or warrant
shall  expire and shall not have been  exercised,  the  conversion  price  shall
immediately  upon such  expiration be recomputed to the  conversion  price which
would have been in effect had the adjustment of the  conversion  price made upon
the  issuance of such rights or warrants  been made on the basis of offering for
subscription  or purchase  only that number of shares of Common  Stock  actually
purchased upon the exercise of such rights or warrants actually exercised.


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     (c) In case the Company shall distribute to all holders of its Common Stock
any  shares  of  Capital  Stock of the  Company  (other  than  Common  Stock) or
evidences  of its  indebtedness  or assets  (excluding  cash  dividends or other
distributions  to the extent  paid from  retained  earnings  of the  Company) or
rights or warrants to subscribe for or purchase any of its securities (excluding
those  referred  to in  subsection  (b)  above),  then,  except as  provided  in
subsection (f) below,  in each such case the conversion  price shall be adjusted
so that the same shall equal the price  determined by multiplying the conversion
price in effect  immediately  before the date of such distribution by a fraction
of which the numerator  shall be the Current  Market Price per share (as defined
in subsection (f) below) of the Common Stock on the record date mentioned  below
less the fair market  value on such record date (as  determined  by the Board of
Directors of the Company, whose determination shall be conclusive, and described
in a certificate  filed with the Trustee) of the portion of the Capital Stock or
assets or evidences of indebtedness so distributed or of such rights or warrants
applicable to one share of Common Stock, and the denominator shall be the market
price per share (as defined in subsection (f) below) of the Common Stock on such
record date. Such adjustment shall become effective immediately after the record
date  for  the   determination   of  stockholders   entitled  to  received  such
distribution, except as provided in subsection (f) below.

     (d) In case the Company shall, by dividend or otherwise,  distribute to all
holders of its Common Stock cash in an aggregate amount that,  combined together
with (1) the aggregate  amount of any other  distributions to all holders of its
Common Stock made exclusively in cash within the 12 months preceding the date of
payment of such  distribution and in respect of which no adjustment  pursuant to
this paragraph (d) has been made and (2) the aggregate of any cash plus the fair
market value (as determined by the Board of Directors, whose determination shall
be conclusive and described in a Board  Resolution) of consideration  payable in
respect of any tender offer by the Company or any of its Subsidiaries for all or
any portion of the Common Stock  concluded  within the 12 months  preceding  the
date of payment  of such  distribution  and in  respect  of which no  adjustment
pursuant to  paragraph  (e) of this  Section  has been made,  exceeds 10% of the
product of the Current  Market  Price per share of the Common  Stock on the date
for the  determination  of holders of shares of Common Stock entitled to receive
such distribution times the number of shares of Common Stock outstanding on such
date,  then, and in each such case,  immediately  after the close of business on
such date for  determination,  the conversion price shall be reduced so that the
same shall equal the price  determined by multiplying  the  conversion  price in
effect  immediately  before  the  close  of  business  on  the  date  fixed  for
determination  of the  stockholders  entitled to receive such  distribution by a
fraction (i) the  numerator of which shall be equal to the Current  Market Price
per share of the Common Stock on the date fixed for such  determination  less an
amount equal to the quotient of (x) the excess of such combined amount over such
10% and (y) the number of shares of Common  Stock  outstanding  on such date for
determination  and (ii) the  denominator  of which shall be equal to the Current
Market Price per share of the Common Stock on such date for determination.

     (e) In case a tender offer made by the Company or any Subsidiary for all or
any portion of the Common  Stock shall  expire and such tender offer (as amended
at the time of the expiration thereof) shall require the payment to stockholders
(based on the acceptance (up to any maximum specified in the terms of the tender
offer) of  Purchase  Shares (as  defined  below) of an  aggregate  consideration
having a fair market value (as determined by the Board of Directors,

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     whose   determination   shall  be  conclusive  and  described  in  a  Board
Resolution)  that combined  together with (1) the aggregate of the cash plus the
fair market value (as determined by the Board of Directors,  whose determination
shall be conclusive and described in a Board Resolution) as of the expiration of
such  tender  offer,  of  consideration  payable in respect of any other  tender
offer,  by the  Company or any  Subsidiary  for all or any portion of the Common
Stock  expiring  within the 12 months  preceding  the  expiration of such tender
offer and in respect of which no adjustment  pursuant to this  paragraph (e) has
been made and (2) the  aggregate  amount of any  distributions to all holders of
the Company's  Common Stock made  exclusively in cash within 12 months preceding
the  expiration  of such  tender  offer and in  respect  of which no  adjustment
pursuant to  paragraph  (d) of this  Section  has been made,  exceeds 10% of the
product of the Current Market Price per share of the Common Stock as of the last
time (the  "Expiration  Time")  tenders  could have been made  pursuant  to such
tender  offer (as it may be amended)  times the number of shares of Common Stock
outstanding (including any tendered shares) on the Expiration Time, then, and in
each such case,  immediately before the opening of business on the day after the
date of the Expiration  Time, the conversion price shall be adjusted so that the
same shall equal the price  determined by multiplying  the  conversion  price in
effect  immediately  before close of business on the date of the Expiration Time
by a fraction  (i) the  numerator  of which shall be equal to (A) the product of
(1) the Current  Market  Price per share of the Common  Stock on the date of the
Expiration  Time and  (2) the  number  of shares  of  Common  Stock  outstanding
(including any tendered  shares) on the Expiration  Time, less (B) the amount of
cash plus the fair market  value  (determined  as  aforesaid)  of the  aggregate
consideration payable to stockholders based on the acceptance (up to any maximum
specified in the terms of the tender  offer) of Purchased  Shares,  and (ii) the
denominator  of which shall be equal to the  product of (A) the  Current  Market
Price per share of the Common Stock as of the Expiration Time and (B) the number
of shares of Common Stock outstanding  (including any tendered shares) as of the
Expiration Time less the number of all shares validly tendered and not withdrawn
as of the Expiration Time (the shares deemed so accepted up to any such maximum,
being referred to as the "Purchased Shares").

     (f) No adjustment  in the  conversion  price shall be required  unless such
adjustment  would  require an increase or decrease of at least 1% in such price;
provided,  however,  that any adjustments which by reason of this subsection (f)
are not  required to be made shall be carried  forward and taken into account in
any subsequent adjustment.  All calculations under this Article 10 shall be made
by the  Company  and shall be made to the  nearest  cent or to the  nearest  one
hundredth of a share, as the case may be.  Anything in this  Section 10.5 to the
contrary notwithstanding,  the Company shall be entitled to make such reductions
in the conversion price, in addition to those required by this Section 10.5,  as
it in its  discretion  shall  determine  to be advisable in order that any stock
dividends,  subdivision of shares,  distribution  of rights to purchase stock or
securities, or a distribution of securities convertible into or exchangeable for
stock hereafter made by the Company to its stockholders shall not be taxable.

     (g)  Whenever  the  conversion  price is adjusted as herein  provided,  the
Company shall promptly file with the Trustee and any conversion agent other than
the Trustee an Officers'  Certificate  setting forth the conversion  price after
such  adjustment and setting forth a brief statement of the facts requiring such
adjustment.  Promptly  after  delivery of such  certificate,  the Company  shall
prepare a notice of such adjustment of the conversion price setting forth the

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     adjusted  conversion  price and the date on which such  adjustment  becomes
effective and shall mail or cause to be mailed such notice of such adjustment of
the  conversion  price  to the  Holder  of each  Security  at his  last  address
appearing  on  the  Security  register  provided  for  in  Section 2.3  of  this
Indenture.

     (h) In any case in which  this  Section 10.5  provides  that an  adjustment
shall become effective immediately after a record date for an event, the Company
may defer  until the  occurrence  of such event (i) issuing to the Holder of any
Security  converted  after such  record date and before the  occurrence  of such
event the  additional  shares of Common Stock  issuable upon such  conversion by
reason of the adjustment  required by such event over and above the Common Stock
issuable upon such  conversion  before giving effect to such adjustment and (ii)
paying to such  Holder any amount in cash in lieu of any  fraction  pursuant  to
Section 10.3.

     Section 10.6 Effect of Reclassification, Consolidation, Merger or Sale.

     If any of the following events occur,  namely (i) any  reclassification  or
change of outstanding  shares of Common Stock (other than a change in par value,
or from par value to no par value,  or from no par value to par  value,  or as a
result of a  subdivision  or  combination),  (ii) any  consolidation,  merger or
combination of the Company with another corporation as a result of which holders
of Common Stock shall be entitled to receive stock, securities or other property
or assets (including cash) with respect to or in exchange for such Common Stock,
or (iii) any sale or conveyance of the  properties and assets of the Company as,
or substantially  as, an entirety to any other  corporation as a result of which
holders of Common Stock shall be entitled to receive stock,  securities or other
property or assets  (including  cash) with  respect to or in  exchange  for such
Common  Stock shall  occur,  then the  Company or the  successor  or  purchasing
corporation,  as the case may be, shall execute with the Trustee a  supplemental
indenture  (which shall  conform to the TIA as in force at the date of execution
of  such  supplemental   indenture)   providing  that  each  Security  shall  be
convertible  into the kind and amount of shares of stock and other securities or
property  or assets  (including  cash)  receivable  upon such  reclassification,
change, consolidation,  merger, combination, sale or conveyance by a holder of a
number of shares of Common Stock  issuable upon  conversion  of such  Securities
immediately  before  such  reclassification,   change,  consolidation,   merger,
combination,  sale or conveyance.  Such supplemental indenture shall provide for
adjustments  which shall be as nearly  equivalent as may be  practicable  to the
adjustments provided for in this Article.

     The  Company  shall  cause  notice of the  execution  of such  supplemental
indenture to be mailed to each Holder of Securities, at his address appearing on
the Security register provided for in Section 2.3 of this Indenture.

     The  above  provisions  of  this  Section 10.6  shall  similarly  apply  to
successive reclassifications,  changes,  consolidations,  mergers, combinations,
sales and conveyances.

     Section 10.7 Taxes on Shares Issued.

     The issue of stock  certificates on conversions of Securities shall be made
without charge to the converting  Holder of Securities for any tax in respect of
the issue thereof. The

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     Company shall not, however, be required to pay any tax which may be payable
in respect of any  transfer  involved in the issue and  delivery of stock in any
name other than that of the Holder of any  Security  converted,  and the Company
shall not be required to issue or deliver any such stock certificate  unless and
until the person or persons  requesting the issue thereof shall have paid to the
Company the amount of such tax or shall have  established to the satisfaction of
the Company that such tax has been paid.

     Section 10.8  Reservation  of Shares;  Shares to be Fully Paid;  Compliance
with Governmental Requirements; Listing of Common Stock.

     The Company shall use its best efforts,  including  asking its stockholders
to authorize  additional Common Stock to provide,  free from preemptive  rights,
out of its authorized but unissued shares or shares held in treasury, sufficient
shares of Common Stock to provide for the conversion of the Securities from time
to time as such Securities are presented for conversion.

     Before  taking any action  which would  cause an  adjustment  reducing  the
conversion price below the then par value, if any, of the shares of Common Stock
issuable upon conversion of the Securities,  the Company will take all corporate
action which may, in the opinion of its counsel,  be necessary in order that the
Company  may  validly and  legally  issue  shares of such  Common  Stock at such
adjusted conversion price.

     The Company  covenants  that all shares of Common Stock which may be issued
upon conversion of Securities will upon issue be fully paid and nonassessable by
the Company and free from all taxes, liens and charges with respect to the issue
thereof.

     The Company covenants that if any shares of Common Stock to be provided for
the purpose of conversion of Securities  hereunder require  registration with or
approval  of any  governmental  authority  under any Federal or State law before
such shares may be validly  issued  upon  conversion,  the Company  will in good
faith and as expeditiously as possible  endeavor to secure such  registration or
approval, as the case may be.

     The Company  further  covenants  that if at any time Common  Stock shall be
listed on the American Stock Exchange or any other national  securities exchange
the Company  will,  if  permitted by the rules of such  exchange,  list and keep
listed so long as the  Common  Stock  shall be so listed on such  exchange,  all
Common Stock issuable upon conversion of the Securities.

     Section 10.9 Responsibility of Trustee.

     The Trustee and any other  conversion  agent shall not at any time be under
any duty or  responsibility to any Holder of Securities to determine whether any
facts exist which may require any  adjustment of the  conversion  price or other
adjustment  or with respect to the nature or extent or  calculation  of any such
adjustment when made, or with respect to the method  employed,  herein or in any
supplemental  indenture provided to be employed, in making the same. The Trustee
and any other  conversion  agent shall not be  accountable  with  respect to the
validity or value (or the kind or amount) of any shares of Common  Stock,  or of
any securities or

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     property,  which may at any time be issued or delivered upon the conversion
of any  Security;  and  the  Trustee  and any  other  conversion  agent  make no
representations with respect thereto.  Subject to the provisions of Section 7.1,
neither the  Trustee  nor any  conversion  agent  shall be  responsible  for any
failure of the Company to issue,  transfer or deliver any shares of Common Stock
or stock certificates or other securities or property or cash upon the surrender
of any  Security  for the  purpose of  conversion  or to comply  with any of the
duties,   responsibilities  or  covenants  of  the  Company  contained  in  this
Article 10.  Without  limiting  the  generality  of the  foregoing,  neither the
Trustee nor any conversion agent shall be under any  responsibility to determine
the  correctness  of any  provisions  contained  in any  supplemental  indenture
entered into pursuant to  Section 10.6  relating either to the kind or amount of
shares of stock or securities or property (including cash) receivable by Holders
of Securities upon the conversion of their  Securities  after any event referred
to in  Section 10.6 or to any adjustment to be made with respect  thereto,  but,
subject to the  provisions of Section 7.1, may accept as conclusive  evidence of
the correctness of any such provisions,  and shall be protected in relying upon,
the Officers' Certificate (which the Company shall be obligated to file with the
Trustee before the execution of any such  supplemental  indenture)  with respect
thereto.

     Section 10.10 Notice to Holders Before Certain Actions.

                  In case:

     (a) the Company shall declare a dividend (or any other distribution) on its
Common Stock (other than in cash out of retained earnings); or

     (b) the Company  shall  authorize the granting to the holders of its Common
Stock of rights or warrants to subscribe  for or purchase any share of any class
or any other rights or warrants; or

     (c) of any  reclassification of the Common Stock of the Company (other than
a subdivision or combination of its outstanding Common Stock, or a change in par
value, or from par value to no par value, or from no par value to par value), or
of any  consolidation  or merger to which the  Company  is a party and for which
approval  of any  shareholders  of the  Company is  required,  or of the sale or
transfer of all or substantially all of the assets of the Company; or

     (d) of the voluntary or involuntary dissolution,  liquidation or winding-up
of the Company; or

     (e) of an increase in the interest rate on the  Securities  pursuant to the
Registration Rights Agreement,

     the  Company  shall  cause to be filed with the Trustee and to be mailed to
each Holder of Securities at his address  appearing on the  Securities  Register
provided for in  Section 2.3 of this  Indenture,  as promptly as possible but in
any  event  at  least  fifteen  days  before  the  applicable  date  hereinafter
specified,  a notice  stating  (x) the date on which a record is to be taken for
the purpose of such dividend,  distribution or rights, or, if a record is not to
be taken, the date as of which the

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     holders  of  Common  Stock  of  record  to be  entitled  to such  dividend,
distribution  or  rights  are to be  determined,  or (y) the date on which  such
reclassification,    consolidation,   merger,   sale,   transfer,   dissolution,
liquidation  or winding-up is expected to become  effective or occurring and the
date as of which it is expected  that holders of Common Stock of record shall be
entitled  to  exchange  their  Common  Stock for  securities  or other  property
deliverable upon such reclassification,  consolidation,  merger, sale, transfer,
dissolution,  liquidation  or  winding-up.  Failure to give such notice,  or any
defect  therein,  shall not affect the  legality or  validity of such  dividend,
distribution,   reclassification,   consolidation,   merger,   sale,   transfer,
dissolution, liquidation or winding-up.


                                   ARTICLE XI
                                  SUBORDINATION

     Section 11.1 Agreement to Subordinate.

     The Company agrees,  and each Holder by accepting a Security  agrees,  that
the  indebtedness  evidenced  by the  Securities,  and  any  guarantee  of  that
indebtedness,  is  subordinated  in right of  payment,  to the extent and in the
manner  provided  in this  Article,  to the prior  payment in full of all Senior
Indebtedness,  and that the  subordination  is for the benefit of the holders of
Senior Indebtedness.

     Section 11.2 Certain Definitions.

     "Senior Indebtedness" means:

     (a) the  principal  of,  interest  (including,  to the extent  permitted by
applicable law,  interest on or after the commencement of a proceeding  referred
to in clauses (f) or (g) of Section 6.1  whether or not  representing an allowed
claim in such  proceeding)  and premium,  if any, on and any other amounts owing
with  respect  to  (i)any   indebtedness  of  the  Company,  now  or  hereafter
outstanding,  in respect of borrowed  money (other than the  Securities  and the
Existing  Debentures),  (ii)any  indebtedness of the Company,  now or hereafter
outstanding (other than the Securities and the Existing  Debentures),  evidenced
by a bond, note, debenture, capitalized lease, letter of credit or other similar
instrument,  (iii)any other written obligation of the Company, now or hereafter
outstanding,  to pay money issued or assumed as all or part of the consideration
for the  acquisition  of  property,  assets  or  securities,  including  without
limitation, interest rate swap agreements, currency hedging obligations, hedging
obligations  with  respect to the purchase or sale of oil and gas, and any other
hedging  agreement  entered into in the ordinary course of business and (iv)any
guaranty or  endorsement  (other than for  collection or deposit in the ordinary
course of business) or discount with recourse of, or other agreement (contingent
or otherwise) to purchase, repurchase or otherwise acquire, to supply or advance
funds or to  become  liable  with  respect  to  (directly  or  indirectly),  any
indebtedness  or  obligation  of any  person  of  the  type  referred  to in the
preceding subclauses (i), (ii) and(iii) now or hereafter outstanding; and


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     (b)  any   refundings,   refinancings,   renewals  or   extensions  of  any
indebtedness or other obligation described in clause (a) of this Section 11.2.

     Notwithstanding  the  foregoing  (i) if,  by the  terms  of the  instrument
creating or evidencing any indebtedness or obligation referred to in clauses (a)
or (b) above, it is expressly  provided that such  indebtedness or obligation is
not  senior  in  right  of  payment  to the  Securities,  such  indebtedness  or
obligation  shall not be  included  as Senior  Indebtedness,  and (ii) the Notes
shall be, pari passu, in right of payment with the Existing  Debentures,  except
that the Existing  Debentures  have the benefit of  guarantees  by the Company's
Subsidiaries.

     "Representative"  means the indenture  trustee or other  trustee,  agent or
representative for an issue of Senior Indebtedness.

     Section 11.3 Liquidation; Dissolution; Bankruptcy.

     Upon  any  distribution  to  creditors  of the  Company  in a  liquidation,
dissolution  or winding up of the  Company or in a  bankruptcy,  reorganization,
insolvency,  receivership or similar  proceeding  relating to the Company or its
property:

     (1) holders of Senior  Indebtedness shall be entitled to receive payment in
full,  in  cash or in a  manner  satisfactory  to the  holders  of  such  Senior
Indebtedness,  of all Senior  Indebtedness  before  Holders shall be entitled to
receive,  from the Company or from any guarantor of the  Obligations  under this
Indenture  and the Notes,  any payments of  principal of or premium,  if any, or
interest on Securities; and

     (2) until the  Senior  Indebtedness  is paid in full in cash or in a manner
satisfactory  to the holders of such Senior  Indebtedness,  any  distribution to
which Holders would be entitled but for this Article shall be made to holders of
Senior  Indebtedness  as their  interest  may appear,  except  that  Holders may
receive securities that are subordinated to Senior  Indebtedness to at least the
same extent as the Securities.

     A distribution may consist of cash, securities or other property.

     Section 11.4 Company Not to Make  Payments  with Respect to  Securities  in
Certain Circumstances.

     (a)  Upon  the  maturity  of any  Senior  Indebtedness  by  lapse  of time,
acceleration or otherwise, all principal thereof,  premium, if any, and interest
thereon and any other  amounts  owing in respect  thereof shall first be paid in
full, or such payment duly provided for in cash or in a manner  satisfactory  to
the holders of such Senior  Indebtedness,  before any payment is made on account
of the  principal  of or premium,  if any, or interest on the  Securities  or to
acquire any of the Securities.


053113\1008\02764\979QGT85.OTH
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     (b) Upon the  happening  of an event of default (or if any event of default
would  result  upon any payment  upon or with  respect to the  Securities)  with
respect to any Senior  Indebtedness  as such event of default is defined therein
or in the  instrument  under  which it is  outstanding,  permitting  holders  to
accelerate  the maturity  thereof,  and, if the default is other than default in
payment of the principal of, premium, if any, or interest on or any other amount
owing in respect of such Senior Indebtedness,  upon written notice thereof given
to the Company and the  Trustee by the holders of Senior  Indebtedness  or their
Representative,  then,  unless such an event of default shall have been cured or
waived or shall have ceased to exist, no payment shall be made by the Company or
any guarantor  with respect to the principal of or premium,  if any, or interest
on the Securities or to acquire any of the Securities.

     Section 11.5 Acceleration of Securities.

     If payment of the Securities is accelerated because of an Event of Default,
the  Company  shall  promptly  notify  holders  of  Senior  Indebtedness  of the
acceleration.

     Section 11.6 When Distribution Must Be Paid Over.

     If a  distribution  is made to Holders  that,  because of this  Article 11,
should not have been made to them,  the Holders  who  receive  the  distribution
shall  hold it in trust for  holders of Senior  Indebtedness  and pay it over to
them as their interests may appear.

     Section 11.7 Notice by Company.

     The Company shall  promptly  notify the Trustee and the Paying Agent of any
facts  known to the  Company  that  would  cause a payment  of  principal  of or
premium, if any, or interest on the Securities to violate this Article 11.

     Section 11.8 Subrogation.

     After all Senior  Indebtedness is paid in full and until the Securities are
paid in full,  Holders  shall be  subrogated  to the rights of holders of Senior
Indebtedness to receive  distributions  applicable to Senior Indebtedness to the
extent that distributions  otherwise payable to the Holders have been applied to
the payment of Senior Indebtedness. A distribution made under this Article 11 to
holders of Senior  Indebtedness  which otherwise would have been made to Holders
is not, as between the Company and  Holders,  a payment by the Company on Senior
Indebtedness.

     Section 11.9 Relative Rights.

     This  Article 11  defines  the  relative  rights of Holders  and holders of
Senior Indebtedness. Nothing in this Indenture shall:

     (1)  impair,  as between the Company and  Holders,  the  obligation  of the
Company,  which is absolute and unconditional,  to pay principal of and premium,
if any, and interest on the Securities in accordance with their terms;

053113\1008\02764\979QGT85.OTH
                                       57




     (2) affect the  relative  rights of Holders and  creditors  of the Company,
other than holders of Senior  Indebtedness  and any guarantors of the Obligation
under this Indenture and the Notes; or

     (3)  prevent  the  Trustee  or any Holder  from  exercising  its  available
remedies upon a Default, subject to the rights of holders of Senior Indebtedness
to receive distributions otherwise payable to Holders.

     If the Company  fails  because of this  Article 11  to pay  principal of or
premium,  if any, or interest on a Security on the due date,  such failure shall
nevertheless be deemed a Default.

     Section 11.10 Subordination May Not Be Impaired by Company.

     No right of any holder of Senior  Indebtedness to enforce the subordination
of the indebtedness  evidenced by the Securities shall be impaired by any act or
failure to act by the Company or by its failure to comply with the terms of this
Indenture.

     Section 11.11 Distribution or Notice to Representative.

     Whenever  a  distribution  is to be made or a notice  given to  holders  of
Senior Indebtedness,  the distribution may be made and the notice given to their
Representative.

     Section 11.12 Rights of Trustee and Paying Agent.

     Notwithstanding  any  provisions  of this  Indenture to the  contrary,  the
Trustee and any Paying Agent may continue to make payments on the Securities and
shall not at any time be charged with  knowledge  of the  existence of any facts
which would  prohibit  the making of such  payments  until it  receives  written
notice  (received  by a  Responsible  Officer,  in  the  case  of  the  Trustee)
reasonably  satisfactory  to it  that  payments  may  not  be  made  under  this
Article 11 and, before the receipt of any such notice,  the Trustee,  subject to
the  provisions  of  Article  7, and any  agent  shall  be  entitled  to  assume
conclusively  that no such facts exist. The Company,  an Agent, a Representative
or a holder of Senior  Indebtedness  may give the notice.  If an issue of Senior
Indebtedness   has  a   Representative,   only   the   Representative   (or  any
Representative,  if more  than one) may give the  notice  with  respect  to such
Senior Indebtedness.

     The Trustee  shall be  entitled to rely on the  delivery to it of a written
notice by a Person  representing  himself to be a holder of Senior  Indebtedness
(or a  Representative)  to establish that such notice has been given by a holder
of Senior  Indebtedness (or a Representative),  and shall be entitled to rely on
any  written  notice by a Person  representing  himself to be a holder of Senior
Indebtedness  to the  effect  that  such  issue of  Senior  Indebtedness  has no
Representative.

     Any deposit of moneys by the Company  with the Trustee or any Paying  Agent
(whether or not in trust) for the  payment of the  principal  of or premium,  if
any, or interest on, or payment on account of Change in Control, if any, of, any
Securities shall be subject to the

053113\1008\02764\979QGT85.OTH
                                       58



     provisions of this Article 11, except that if, at least three business days
before  the date on which by the terms of this  Indenture  any such  moneys  may
become payable for any purpose (including,  without  limitation,  the payment of
principal of or premium, if any, or interest on any Security), the Trustee shall
not have  received  with respect to such moneys the notice  provided for in this
Section  11.12,  then the Trustee shall have full power and authority to receive
such moneys and to apply the same to the  purpose  for which they were  received
and shall not be affected by any notice to the contrary which may be received by
it  within  three  business  days  before  or  on  or  after  such  date.   This
Section 11.12  shall be  construed  solely for the  benefit of the  Trustee  and
Paying  Agent and shall not  otherwise  affect  the  rights of holders of Senior
Indebtedness.  If the Trustee  determines in good faith that further evidence is
required  with  respect  to  the  right  of  any  Person  as  holder  of  Senior
Indebtedness  to  participate  in any payment or  distribution  pursuant to this
Article 11,  the  Trustee may  request  such  Person to furnish  evidence to the
reasonable  satisfaction  of  the  Trustee  as  to  the  amount  of  the  Senior
Indebtedness held by such Person, the extent to which such person is entitled to
participate in such payment or distribution and any other facts pertinent to the
rights of such  Person  under this  Article  11,  and,  if such  evidence is not
furnished,  the Trustee may defer any  payment to such Person  pending  judicial
determination as to the right of such Person to receive payment.

     The  Trustee  shall not be deemed to owe any  fiduciary  duty to holders of
Senior  Indebtedness  by  virtue  of the  provisions  of  this  Article 11.  The
Trustee's  responsibilities to the holders of Senior Indebtedness are limited to
those set forth in this  Article 11,  and no implied  covenants  or  obligations
shall be read into this  Indenture.  The Trustee  shall not become liable to the
holders  of  Senior  Indebtedness  if it  makes  a  payment  prohibited  by this
Article 11 in good faith.

     The  Trustee  in its  individual  or any  other  capacity  may hold  Senior
Indebtedness  with the same  rights it would  have if it were not  Trustee.  Any
agent may do the same with like rights.

     Section 11.13 Effectuation of Subordination by Trustee.

     Each Holder of Securities,  by acceptance  thereof,  authorizes and directs
the Trustee on his behalf to take such action as may be necessary or appropriate
to effect the subordination provided in this Article 11 and appoints the Trustee
his attorney-in-fact for any and all such purposes.

                                   ARTICLE XII
                                  MISCELLANEOUS

     Section 12.1 Trust Indenture Act Controls.

     If any provision of this Indenture limits,  qualifies or conflicts with the
duties imposed by TIA S318 (c), the imposed duties shall control.


053113\1008\02764\979QGT85.OTH
                                       59



     Section 12.2 Notices.

     Any notice or  communication by the Company or the Trustee to the others is
duly given if in writing and delivered in person or mailed by  first-class  mail
(registered  or  certified,  return  receipt  requested),  telex,  telecopier or
overnight air courier guaranteeing next day delivery, to the other's address:

     If to the Company:

Key Energy Group, Inc.
Two Tower Center, Tenth Floor
East Brunswick, New Jersey 08816
Attention: Francis D. John
Telecopier No.: (732) 247-5148

         With a copy to:

Porter & Hedges, L.L.P.
700 Louisiana, 35th Floor
Houston, Texas 77002
Attention: Samuel N. Allen
Telecopier No.: (713) 228-1331

         If to the Trustee:

 American Stock Transfer & Trust Company
 40 Wall Street
 46th Floor
 New York, New York 10005
 Attention: Executive Vice President
 Telecopier No.: (718) 236-4558

         With a copy to:

 Herbert J. Lemmer
 American Stock Transfer & Trust Company
 6201 15th Avenue, 3rd Floor
 Brooklyn, New York 11219
 Telecopier No.: (718) 331-1552

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

     All notices and communications  (other than those sent to Holders) shall be
deemed to have been duly  given at the time  delivered  by hand,  if  personally
delivered;  five  Business  Days  after  being  deposited  in the mail,  postage
prepaid, if mailed; when answered

053113\1008\02764\979QGT85.OTH
                                       60



     back, if telexed;  when receipt acknowledged,  if telecopied;  and the next
Business Day after  timely  delivery to the  courier,  if sent by overnight  air
courier guaranteeing next day delivery.


     Any notice or communication to a Holder shall be mailed by first-class mail
to his address  shown on the register kept by the  Registrar.  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 within
the time prescribed, it is duly given, whether or not the addressee receives it.

     If the Company mails a notice or communication to Holders,  it shall mail a
copy to the Trustee at the same time.

     Section 12.3 Communication to Holders with Other Holders.

     Holders may  communicate  pursuant to TIA S 312(b) with other  Holders with
respect to their rights under this Indenture or the Securities. The Company, the
Trustee,  the Registrar  and any anyone else shall have the  protection of TIA S
312(c).

     Section 12.4 Certificate and Opinion as to Conditions Precedent.

     Upon any request or  application  by the Company to the Trustee to take any
action under this  Indenture,  the Company shall,  upon request,  furnish to the
Trustee an Officer's  Certificate  and Opinion of Counsel in form and  substance
reasonably  satisfactory  to the Trustee (which shall include the statements set
forth  in  Section 13.5)  stating  that,  in the  opinion  of the  signers,  all
conditions  precedent  and  covenants,  if any,  provided for in this  Indenture
relating to the proposed action have been complied with.

     Section 12.5 Statements Required in Certificate.

     Each  certificate  with respect to compliance  with a condition or covenant
provided for in this Indenture  (other than a certificate  provided  pursuant to
TIA S 314(a) (4)) shall include:

     (a) a  statement  that the person  making  such  certificate  has read such
covenant or condition;

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

     (c) a  statement  that,  in the  opinion of such  person,  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


053113\1008\02764\979QGT85.OTH
                                       61



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

     Section 12.6 Rules by Trustee and Agents.

     The  Trustee  may make  reasonable  rules for  action by or at a meeting of
Holders.  The  Registrar  or  Paying  Agent  may make  reasonable  rules and set
reasonable requirements for its functions.

     Section  12.7   Additional   Rights  of  Holders  of  Transfer   Restricted
Securities.

     In addition  to the rights  provided  to Holders of  Securities  under this
Indenture,  Holders  of  Transferred  Restricted  Securities  shall have all the
rights  set  forth  in the  Registration  Rights  Agreement  and  certain  other
agreements executed and delivered in connection herewith.

     Section 12.8 Legal Holidays.

     A  "Legal  Holiday"  is a  Saturday,  a Sunday  or a day on  which  banking
institutions  in New York,  New York, or at a place of payment are authorized or
obligated by law,  regulation or executive order to remain closed.  If a payment
date is a Legal Holiday at a place of payment, payment may be made at that place
on the next day that is not a Legal  Holiday,  and no interest  shall accrue for
the intervening period.

     Section 12.9 No Recourse Against Others.

     No past, present or future director,  officer,  employee,  agent,  manager,
stockholder  or other  Affiliate of the Company shall have any liability for any
obligations of the Company under the Securities, the Indenture, or for any claim
based on, in respect of or by reason of such obligations or their creation. Each
Holder by accepting a Security waives and releases all such liability.

     Section 12.10 Duplicate Originals.

     The  parties  may sign any number of copies of this  Indenture.  One signed
copy is enough to prove this Indenture.

     Section 12.11 Governing Law.

     This  indenture  and the  Securities  shall be governed by and construed in
accordance  with  the laws of the  State  of New  York,  without  regard  to the
conflict of law rules thereof.


053113\1008\02764\979QGT85.OTH
                                       62



     Section 12.12 No Adverse Interpretation of Other Agreements.

     This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or its Subsidiaries.  Any such indenture,  loan or debt
agreement may not be used to interpret this Indenture.

     Section 12.13 Successors.

     All agreements of the Company in this  Indenture and the  Securities  shall
bind its successors.  All agreements of the Trustee in this Indenture shall bind
its successor.

     Section 12.14 Severability.

     In case any  provision  in this  Indenture  or in the  Securities  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.

     Section 12.15 Counterpart 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.

     Section 12.16 Table of Contents, Headings, etc.

     The Table of Contents,  Cross-Reference  Table and Headings of the Articles
and Sections of this Indenture  have been inserted for  convenience of reference
only,  are not to be  considered  a part  hereof  and shall in no way  modify or
restrict any of the terms or provisions hereof.

                                             [SIGNATURE PAGES FOLLOW]

053113\1008\02764\979QGT85.OTH
                                       63



     IN WITNESS  WHEREOF,  the parties  hereto have causes this  Indenture to be
executed as of the day and year first above written.

Dated as of September 25, 1997                       KEY ENERGY GROUP, INC.


                                   By:                                         

                                   Its:                                        
Attest:

                                     (SEAL)

Dated as of September 25, 1997                    AMERICAN STOCK TRANSFER
                                                & TRUST COMPANY, as Trustee


                                   By:                                         

                                   Its:                                        
Attest:

                                     (SEAL)

053113\1008\02764\979QGT85.OTH

                                   Exhibit A-1

                               (Face of Security)

                        5% CONVERTIBLE SUBORDINATED NOTE
                                    DUE 2004


No.                                                                  $______

                             KEY ENERGY GROUP, INC.

promises to pay to

                                                                        
or its registered assigns, the principal sum of

                                                                         
Dollars on September 25, 2004.

Interest Payment Dates: September 15 and March 15, commencing March 15, 1998.

Record Dates: September 1 and March 1 (whether or not a Business Day).


                             KEY ENERGY GROUP, INC.


                        By:                                                  
                                         Officer of the Company
                                                (SEAL)

                        Attest:                                              
This is one of the 5% Convertible Subordinated
Notes due 2004 referred to in the By:                                          
within-mentioned Indenture:                  Officer of the Company

American Stock Transfer & Trust Company, as Trustee

By                                                   
         Authorized Signature

Dated:                              ,       

                                      A1-1
053113\1008\02764\979QGT85.OTH

                               (Back of Security)

                        5% CONVERTIBLE SUBORDINATED NOTE
                                    DUE 2004

     [Unless and until it is  exchanged  in whole or in part for  Securities  in
definitive  form, this Security may not be transferred  except as a whole by the
Depository to a nominee of the  Depository or by a nominee of the  Depository to
the Depository or another  nominee of the Depository or by the Depository or any
such  nominee  to  a  successor  Depository  or  a  nominee  of  such  successor
Depository. Unless this certificate is presented by an authorized representative
of The Depository Trust Company, 55 Water Street, New York, New York ("DTC"), to
the issuer or its agent for registration of transfer,  exchange or payment,  and
any  certificate  issued is  registered  in the name of Cede & Co. or such other
name as requested  by an  authorized  representative  of DTC (and any payment is
made to  Cede &  Co.  or 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.]1

     THE NOTE EVIDENCED HEREBY HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
U.S.  SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),  OR ANY STATE
SECURITIES LAWS, AND, ACCORDINGLY,  MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED
STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF U.S.  PERSONS EXCEPT AS SET FORTH
IN THE FOLLOWING SENTENCE.  BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS
THAT (A) IT IS A "QUALIFIED  INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
THE  SECURITIES  ACT) OR (B) IT IS AN  INSTITUTIONAL  "ACCREDITED  INVESTOR" (AS
DEFINED  IN  RULE  501  (a)(1),  (2),  (3)  OR (7)  UNDER  THE  SECURITIES  ACT)
("INSTITUTIONAL  ACCREDITED  INVESTOR")  OR (C) IT IS NOT A U.S.  PERSON  AND IS
ACQUIRING THE NOTE EVIDENCED HEREBY IN AN OFFSHORE TRANSACTION,  (2) AGREES THAT
IT WILL NOT WITHIN TWO YEARS AFTER THE ORIGINAL  ISSUANCE OF THE NOTE  EVIDENCED
HEREBY  RESELL OR  OTHERWISE  TRANSFER THE NOTE  EVIDENCED  HEREBY OR THE COMMON
STOCK ISSUABLE UPON CONVERSION OF SUCH NOTE EXCEPT (A) TO KEY ENERGY GROUP, INC.
OR  ANY  SUBSIDIARY  THEREOF,  (B)  INSIDE  THE  UNITED  STATES  TO A  QUALIFIED
INSTITUTIONAL  BUYER IN COMPLIANCE  WITH RULE 144A UNDER THE SECURITIES ACT, (C)
INSIDE THE UNITED STATES TO AN INSTITUTIONAL  ACCREDITED  INVESTOR THAT,  BEFORE
SUCH TRANSFER,  FURNISHES TO AMERICAN STOCK TRANSFER & TRUST COMPANY, AS TRUSTEE
(OR  SUCCESSOR  TRUSTEE,  AS  APPLICABLE),  A SIGNED LETTER  CONTAINING  CERTAIN
REPRESENTATIONS  AND AGREEMENTS  RELATING TO THE RESTRICTIONS ON TRANSFER OF THE
NOTE  EVIDENCED  HEREBY  (THE FORM OF WHICH  LETTER  CAN BE  OBTAINED  FROM SUCH
TRUSTEE),  (D) OUTSIDE THE UNITED STATES IN  COMPLIANCE  WITH RULE 904 UNDER THE
SECURITIES ACT, (E) PURSUANT TO THE EXEMPTION FROM -------- 1/ This paragraph is
to be included only if the Security is in global form.

                                      A1-2
053113\1008\02764\979QGT85.OTH

REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF
AVAILABLE), OR (F) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS
BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT (AND WHICH
CONTINUES TO BE EFFECTIVE AT THE TIME OF SUCH TRANSFER); AND (3)
AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THE NOTE
EVIDENCED HEREBY IS TRANSFERRED (OTHER THAN A TRANSFER PURSUANT
TO CLAUSE 2(F) ABOVE), A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS
LEGEND.  IN CONNECTION WITH ANY TRANSFER OF THE NOTE EVIDENCED
HEREBY WITHIN TWO YEARS AFTER THE ORIGINAL ISSUANCE OF SUCH NOTE,
(OTHER THAN A TRANSFER PURSUANT TO CLAUSE 2(E) ABOVE), THE HOLDER
MUST CHECK THE APPROPRIATE BOX SET FORTH ON THE REVERSE HEREOF
RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT THIS
CERTIFICATE TO AMERICAN STOCK TRANSFER & TRUST COMPANY, AS
TRUSTEE (OR SUCCESSOR TRUSTEE, AS APPLICABLE).  IF THE PROPOSED
TRANSFER IS PURSUANT TO CLAUSE 2(F) ABOVE, THE HOLDER MUST, BEFORE
SUCH TRANSFER, FURNISH TO AMERICAN STOCK TRANSFER & TRUST
COMPANY, AS TRUSTEE (OR SUCCESSOR TRUSTEE, AS APPLICABLE), SUCH
CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS THE COMPANY
MAY REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING
MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT
SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.
THIS LEGEND WILL BE REMOVED UPON THE EARLIER OF THE TRANSFER OF
THE NOTE EVIDENCED HEREBY PURSUANT TO CLAUSE 2(F) ABOVE OR THE
EXPIRATION OF TWO YEARS FROM THE ORIGINAL ISSUANCE OF THE NOTE
EVIDENCED HEREBY.  AS USED HEREIN, THE TERMS "OFFSHORE
TRANSACTION," "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANINGS
GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT.

     Section 1. Interest.  Key Energy Group,  Inc., a Maryland  corporation (the
"Company"),  promises  to pay  interest  on the  principal  amount  of  this  5%
Convertible  Subordinated  Note due  2004  (the  "Note")  at the rate and in the
manner specified below.

     The Company will pay interest semi-annually on September 15 and March 15 of
each year  commencing  March 15, 1998, or if any such day is not a Business Day,
on the next Business Day (each an "Interest  Payment Date") to record holders of
Notes ("Holders") at the close of business on September 1 or March 1 immediately
preceding the applicable Interest Payment Date. A copy of the Indenture (defined
below),  the Registration  Rights  Agreement and all other agreements  affecting
this Note or the Holders may be obtained from the Company upon request.

     Interest  shall be computed on the basis of a 360-day  year  consisting  of
twelve 30-day  months.  Interest shall accrue from the most recent date to which
interest  has been paid or, if no interest  has been paid,  from the date of the
original  issuance of this Note.  To the extent  lawful,  the Company  shall pay
interest on overdue  principal at the rate of 1% per annum in excess of the then
applicable  interest  rate on this  Note;  it  shall  pay  interest  on  overdue
installments of interest (without regard to any applicable grace periods) at the
same rate to the extent lawful.

                                      A1-3
053113\1008\02764\979QGT85.OTH


     Section 2. Method of Payment.  The Company  shall pay interest on the Notes
(except  defaulted  interest)  to Holders at the close of business on the record
date next preceding the Interest  Payment Date,  even if such Notes are canceled
after such record date and on or before such Interest  Payment Date.  The Holder
hereof must  surrender this Note to a Paying Agent (as defined in the Indenture)
to collect principal  payments.  The Company shall pay principal and interest in
money of the  United  States  that at the time of  payment  is legal  tender for
payment of public and private debts. The Company, however, may pay principal and
interest  by check  payable in such money.  It may mail an  interest  check to a
Holder's registered address.

     Section 3. Paying Agent and Registrar.  Initially, the Trustee shall act as
Paying Agent and Registrar.  The Company may change any Paying Agent,  Registrar
or co-  Registrar  without  notice to any  Holder.  The  Company  and any of its
Subsidiaries may act in any such capacity.

     Section 4.  Indenture.  The Company  issued the Notes  under an  Indenture,
dated as of September 25, 1997 (the "Indenture"), among the Company and American
Stock Transfer & Trust Company, as 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 (15 U.S. Code  SS 77aaa-77bbbb),  as amended by the
Trust  Indenture  Reform  Act of  1990,  and as in  effect  on the  date  of the
Indenture.  The Notes are subject to all such terms, and Holders are referred to
the  Indenture  and such Act for a  statement  of such  terms.  The terms of the
Indenture shall govern any inconsistencies  between the Indenture and the Notes.
Capitalized  terms used herein that are not  specifically  defined  herein shall
have the meanings set forth in the  Indenture.  The Notes are unsecured  general
obligations  of the  Company  limited to  $216,000,000  in  aggregate  principal
amount.

     Section 5.  Optional  Redemption.  The Company may redeem at any time on or
after  September 15, 2000, all or any portion of the  Securities  outstanding at
the  following  redemption  prices  expressed as a percentage  of the  principal
amount  thereof,  if the  Securities  are redeemed  during the  12-month  period
beginning September 15, of the following years:


Year                                                       Percentage

2000................................................          102.86%

2001................................................          102.14%

2002................................................          101.43%

2003................................................          100.71%

2004................................................           100%



     Section 6.  Redemption  or  Repurchase  at Option of Holder.  If there is a
Change in Control (as defined in the Indenture), the Company will be required to
offer to

                                      A1-4
053113\1008\02764\979QGT85.OTH

     purchase  on  the  Change  in  Control  Payment  Date  (as  defined  in the
Indenture) all outstanding  Notes at 100% of the principal amount thereof,  plus
accrued and unpaid  interest to the date of  purchase.  Holders  whose Notes are
subject  to an offer to  purchase  will  receive an offer to  purchase  from the
Company  prior to any related  Change in Control  Payment  Date and may elect to
have their Notes purchased by completing the form entitled  "Option of Holder to
Elect Purchase" appearing below.

     Section 7. Notice of  Redemption.  Notice of  redemption  will be mailed at
least 30 days but not  more  than 45 days  before  the  redemption  date to each
Holder to be redeemed at its registered  address.  Notes may be redeemed in part
but only in whole multiples of $1,000,  unless all of the Notes held by a Holder
are to be redeemed.  On and after the redemption date, interest ceases to accrue
on Notes or portions of them called for redemption.

     Section 8.  Conversion.  Subject to the  provisions of the  Indenture,  the
Holder  hereof has the right,  at its  option,  at any time on or after 270 days
after the Issue Date and on or before the  maturity,  to convert  the  principal
hereof or any portion of such  principal  that is $1,000 or a multiple  thereof,
into, at the Company's option, (a) cash in an amount equal to the Current Market
Price,  as of the  conversion  date,  of the Common Stock to which the principal
would  otherwise  be  converted,  or (b) that number of shares of the  Company's
Common Stock (as such shares shall then be constituted) obtained by dividing the
principal  amount  of this  Note  or  portion  thereof  to be  converted  by the
conversion  price of $38.50,  or such conversion  price as adjusted from time to
time as provided in the Indenture or (c) a combination  of cash and Common Stock
in  proportions  determined  by the  Company in its sole  discretion;  provided,
however,  that the Company's option to convert the principal into cash or into a
combination of cash and Common Stock,  shall  terminate at the close of business
on the date the Company's charter is amended to increase the number of shares of
authorized  Common Stock to at least that number of shares sufficient to reserve
for the conversion of all the Notes.

     The right to convert  with respect to any Security or portion of a Security
that shall be called for redemption or delivered for repurchase, shall terminate
at the close of business on the date fixed for  redemption  of such  Security or
portion of a Security or the second  trading  day  preceding a Change in Control
Payment  Date,  as the case may be,  unless the Company shall default in payment
due upon redemption or repurchase thereof.

     No  adjustments  in respect of interest or dividends  will be made upon any
conversion;  provided,  however,  that if the  Note  shall  be  surrendered  for
conversion  during the period  from the close of business on any record date for
the payment of interest  to the  opening of business on the  following  interest
payment  date,  this Note (unless it or the portion being  converted  shall have
been called for  redemption on a date in such period) must be  accompanied by an
amount,  in funds  acceptable to the Company,  equal to the interest  payable on
such  interest  payment  date  on  the  principal  amount  being  converted.  No
fractional shares will be issued upon any conversion,  but an adjustment in cash
shall be made,  as provided in the  Indenture,  in respect of any  fraction of a
share which would  otherwise be issuable upon the surrender of any Note or Notes
for  conversion.  A holder of Notes is not entitled to any rights of a holder of
Common Stock until such holder has converted his Notes to Common

                                      A1-5
053113\1008\02764\979QGT85.OTH

     Stock,  and only to the  extent  such Notes are to have been  converted  to
Common Stock under the Indenture.

     The  conversion  price is subject to adjustment in accordance  with Section
10.5 of the Indenture.

     Section  9.  Subordination.  The  Securities  are  subordinated  to  Senior
Indebtedness  (as  defined  in the  Indenture).  To the extent  provided  in the
Indenture,  Senior  Indebtedness  must be paid before the Securities may be paid
either by the Company or any guarantor of  Obligations  under this Indenture and
the Note. The Company agrees, and each Holder by accepting a Security agrees, to
the  subordination  provisions  contained in the  Indenture and  authorizes  the
Trustee to give effect to such provisions,  and each Holder appoints the Trustee
his  attorney-in-fact  for any and all such  purposes.  This Note  shall be pari
passu,  in all  respects,  with  the  Existing  Debentures  (as  defined  in the
Indenture),  except that the Existing  Debentures have the benefit of guarantees
by the Company's Subsidiaries.

     Section 10.  Denominations,  Transfer,  Exchange.  The Notes are  initially
issued in global  form.  The  global  Note  represents  such of the  outstanding
Securities as shall be specified  therein or endorsed thereon in accordance with
the Indenture.  The definitive Securities are in registered form without coupons
in denominations of $1,000 and whole multiples of $1,000.  The transfer of Notes
may be registered and Notes may be exchanged as provided in the  Indenture.  The
Registrar and the Trustee may require a Holder,  among other things,  to furnish
appropriate  endorsements  and transfer  documents and to pay any taxes and fees
required by law or permitted by the  Indenture.  The Registrar need not exchange
or  register  the  transfer  of any  Note or  portion  of an Note  selected  for
redemption. Also, it need not exchange or register the transfer of any Notes for
a period of 15 days before a selection of Notes to be redeemed.

     Section 11. Persons Deemed  Owners.  Before due  presentment to the Trustee
for  registration  of the transfer of this Note, the Trustee,  any Agent and the
Company may deem and treat the person in whose name this Note is  registered  as
its  absolute  owner for the purpose of  receiving  payment of  principal of and
interest on this Note and for all other purposes whatsoever, whether or not this
Note is overdue,  and neither the  Trustee,  any Agent nor the Company  shall be
affected by notice to the contrary.  The  registered  holder of an Note shall be
treated as its owner for all purposes.

     Section 12.  Amendments  and Waivers.  Subject to certain  exceptions,  the
Indenture or the Securities may be amended with the consent of the Holders of at
least a majority in principal amount of the then outstanding Securities, and any
existing  default  (except a payment  default) may be waived with the consent of
the  holders  of  a  majority  in  principal  amount  of  the  then  outstanding
Securities.  Without the consent of any Holder,  the Indenture or the Securities
may be amended to cure any ambiguity,  defect or  inconsistency,  to provide for
assumption of Company  obligations to Holders,  to make any change that does not
adversely  affect the rights of any Holder,  to provide  for any  uncertificated
Notes in addition to certificated  Notes, or to comply with  requirements of the
Commission  in order to effect or maintain the  qualification  of the  Indenture
under the TIA.


                                      A1-6
053113\1008\02764\979QGT85.OTH

     Section 13. Defaults and Remedies.  Events of default  include:  default in
payment  of  interest  on the  Securities  for 30 days;  default  in  payment of
principal of or premium on the Securities  when due;  failure by the Company for
60 days after notice to it to comply with its agreements in the Indenture or the
Securities;  defaults under and acceleration  before express maturity of certain
other Indebtedness that aggregates  $25,000,000 or more; certain final judgments
which  remain  undischarged  if the  aggregate  of all  such  judgments  exceeds
$25,000,000 or more;  certain final judgments  which remain  undischarged if the
aggregate  of all such  judgments  exceeds  $25,000,000;  and certain  events of
bankruptcy or insolvency.  If an Event of Default occurs and is continuing,  the
Trustee  or  the  Holders  of at  least  25% in  principal  amount  of the  then
outstanding  Securities  may  declare all the  Securities  to be due and payable
immediately, except that in the case of an Event of Default arising from certain
events of bankruptcy or insolvency,  all outstanding  Securities  become due and
payable  immediately  without  further  action  or  notice  and all  outstanding
Securities,  and  all  Obligations  and  Claims  with  respect  thereto,  become
immediately  due and  payable.  Holders  may not enforce  the  Indenture  or the
Securities  except  as  provided  in the  Indenture.  The  Trustee  may  require
indemnity satisfactory to it before it enforces the Indenture or the Securities.
Subject to certain limitations, Holders of a majority in principal amount of the
then outstanding  Securities may direct the Trustee in its exercise of any trust
or power. The Trustee may withhold from Holders notice of any continuing default
(except a default in payment of principal or  interest)  if it  determines  that
withholding  notice is in their  interests.  The Company  must furnish an annual
compliance certificate to the Trustee.

     Section 14. Trustee Dealings with Company. The Trustee under the Indenture,
in its  individual or any other  capacity,  may make loans to,  accept  deposits
from, and perform services for the Company or its Affiliates,  and may otherwise
deal with the Company or its  Affiliates,  as if it were not Trustee;  provided,
however,  that if the Trustee acquires any conflicting  interest as described in
the Trust Indenture Act, it must eliminate such conflict or resign.

     Section 15. No Recourse  Against Others.  No director,  officer,  employee,
agent,  manager,  stockholder or other  Affiliates of the Company shall have any
liability  for  any  obligations  of  the  Company  under  the  Securities,  the
Indenture,  or for any  claim  based  on,  in  respect  of or by  reason of such
obligations  or their  creation.  Each  Holder by  accepting  a Note  waives and
releases  all  such   liability.   The  waiver  and  release  are  part  of  the
consideration for the issuance of the Notes.

     Section   16.   Authentication.   This  Note  shall  not  be  valid   until
authenticated by the manual signature of the Trustee or an authenticating agent.

     Section 17. 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  entireties),  JT TEN (= joint tenants with right of survivorship
and not as tenants in common),  CUST = Custodian),  and U/G/M/A (= Uniform Gifts
to Minors Act).

     Section 18. 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 and has  directed  the  Trustee to use
CUSIP

                                      A1-7
053113\1008\02764\979QGT85.OTH

     numbers  in  notices  of  redemption  as  a  convenience  to  Holders.   No
representation  is made as to the accuracy of such numbers  either as printed on
the Notes or as contained in any notice of redemption and reliance may be placed
only on the other identification number placed thereon.

     Section 19. Additional Rights of Holders of Transfer Restricted Securities.
In addition to the rights provided to Holders of Securities under the Indenture,
Holders of Transferred Restricted Securities shall have all the rights set forth
in the Registration  Rights  Agreement  referred to in the Indenture and certain
other agreements executed and delivered in connection therewith.

     The Company  will  furnish to any Holder upon  written  request and without
charge a copy of the Indenture. Request may be made to:

                           Key Energy Group, Inc.
                           Two Tower Center, Tenth Floor
                           East Brunswick, New Jersey 08816
                           Attn: Francis D. John



                                      A1-8
053113\1008\02764\979QGT85.OTH

                                 ASSIGNMENT FORM

     To assign this  Security,  fill in the form  below:  (I) or (we) assign and
transfer this Security to

                                                                               
                                   (Insert assignee's soc. sec. or tax I.D. no.)

                                                                               
                                                                               
                                                                               
                                                                               
                    (Print or type assignee's name, address and zip code)

and irrevocably appoint                                                        
                            agent to transfer this Security on the books of the
Company.  The agent may substitute another to act for him.


Date:                               

            Your Signature:                                               
                           (Sign exactly as your name appears
                             on the face of this Security)

Signature Guaranteed:



By:                                                                    
(THE SIGNATURE(S) SHOULD BE GUARANTEED
BY AN ELIGIBLE GUARANTOR INSTITUTION
(Banks, Stock Brokers, Savings and Loan Associations,
and Credit Unions) WITH MEMBERSHIP IN AN
APPROVED SIGNATURE GUARANTEE MEDALLION
PROGRAM PURSUANT TO S.E.C. RULE 17Ad-15.)

                                      A1-9
053113\1008\02764\979QGT85.OTH

                       OPTION OF HOLDER TO ELECT PURCHASE

     If you want to elect to have all or any part of this Security  purchased by
the Company pursuant to Section 4.10 of the Indenture (Change in Control), state
the   amount   you   elect   to  have   purchased   (if   all,   write   "ALL"):
$__________________________

Date:                               

          Your Signature:                                               
                                 (Sign exactly as your name appears
                                  on the face of this Security)

Signature Guaranteed:



By:                                                                    
(THE SIGNATURE(S) SHOULD BE GUARANTEED
BY AN ELIGIBLE GUARANTOR INSTITUTION
(Banks, Stock Brokers, Savings and Loan Associations,
and Credit Unions) WITH MEMBERSHIP IN AN
APPROVED SIGNATURE GUARANTEE MEDALLION
PROGRAM PURSUANT TO S.E.C. RULE 17Ad-15.)

                                                      A1-10
053113\1008\02764\979QGT85.OTH

     SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL SECURITIES 2

     The following  exchanges of a part of this Global  Security for  Definitive
Securities have been made:


     Amount of Principal Signature of decrease in Amount of Amount of authorized
Date of  Principal  Increase  in this  Global  officer  of  Exchange  Amount  of
Principal  Security  Trustee  or  this  Global  Amount  of this  following  such
Securities Security Global Security decrease (or Custodian increase)

     -------------------   -----------------------    --------------------------
- ------------------------- ---------------------------




- --------
2        This is to be included only if the Security is in global form

                                      A1-11
053113\1008\02764\979QGT85.OTH

                                   Exhibit A-2

                               (Face of Security)

                        5% CONVERTIBLE SUBORDINATED NOTE
                                    DUE 2004


                                  No. $______

                             KEY ENERGY GROUP, INC.

promises to pay to

                                                                               
or its registered assigns, the principal sum of

                                                                               
Dollars on September 25, 2004.

Interest Payment Dates: September 15 and March 15, commencing March 15, 1998.

Record Dates: September 1 and March 1 (whether or not a Business Day).


                             KEY ENERGY GROUP, INC.


                          By:                                                  
                                          Officer of the Company
                                                              (SEAL)
                          Attest:                                              
This is one of the 5% Convertible Subordinated
Notes due 2004 referred to in the  By:                                         
within-mentioned Indenture:                 Officer of the Company

American Stock Transfer & Trust Company, as Trustee

By                                                   
         Authorized Signature

Dated:                              ,       

 
053113\1008\02764\979QGT85.OTH
                                      A2-1

                               (Back of Security)

                        5% CONVERTIBLE SUBORDINATED NOTE
                                    DUE 2004

[THE RIGHTS ATTACHING TO THIS REGULATION S TEMPORARY GLOBAL NOTE,
AND THE CONDITIONS AND PROCEDURES GOVERNING ITS EXCHANGE FOR
CERTIFICATED NOTES, ARE AS SPECIFIED IN THE INDENTURE (AS DEFINED
HEREIN).]

[THIS GLOBAL NOTE IS HELD BY THE DEPOSITORY (AS DEFINED IN THE
INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE
BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO
ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (I) THE TRUSTEE
MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO
THE INDENTURE, (II) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT
NOT IN PART PURSUANT TO SECTION 2.6 OF THE INDENTURE, (III) THIS GLOBAL
NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT
TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL NOTE MAY BE
TRANSFERRED TO A SUCCESSOR DEPOSITORY WITH THE PRIOR WRITTEN
CONSENT OF THE COMPANY.]

     [Unless and until it is  exchanged  in whole or in part for  Securities  in
definitive  form, this Security may not be transferred  except as a whole by the
Depository to a nominee of the  Depository or by a nominee of the  Depository to
the Depository or another  nominee of the Depository or by the Depository or any
such  nominee  to  a  successor  Depository  or  a  nominee  of  such  successor
Depository. Unless this certificate is presented by an authorized representative
of The Depository Trust Company, 55 Water Street, New York, New York ("DTC"), to
the issuer or its agent for registration of transfer,  exchange or payment,  and
any  certificate  issued is  registered  in the name of Cede & Co. or such other
name as requested  by an  authorized  representative  of DTC (and any payment is
made to  Cede &  Co.  or 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.]1

     THE NOTE EVIDENCED HEREBY HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE
U.S.  SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),  OR ANY STATE
SECURITIES LAWS, AND, ACCORDINGLY,  MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED
STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF U.S.  PERSONS EXCEPT AS SET FORTH
IN THE FOLLOWING SENTENCE.  BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS
THAT (A) IT IS A "QUALIFIED  INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
THE  SECURITIES  ACT) OR (B) IT IS AN  INSTITUTIONAL  "ACCREDITED  INVESTOR" (AS
DEFINED IN RULE 501 (a)(1),  (2),  -------- 1 This  paragraph  is to be included
only if the Security is in global form.

 
053113\1008\02764\979QGT85.OTH
                                                       A2-2

     (3) OR (7) UNDER THE SECURITIES ACT) ("INSTITUTIONAL  ACCREDITED INVESTOR")
OR (C) IT IS NOT A U.S. PERSON AND IS ACQUIRING THE NOTE EVIDENCED  HEREBY IN AN
OFFSHORE  TRANSACTION,  (2) AGREES  THAT IT WILL NOT WITHIN TWO YEARS  AFTER THE
ORIGINAL ISSUANCE OF THE NOTE EVIDENCED HEREBY RESELL OR OTHERWISE  TRANSFER THE
NOTE EVIDENCED  HEREBY OR THE COMMON STOCK ISSUABLE UPON CONVERSION OF SUCH NOTE
EXCEPT (A) TO KEY ENERGY GROUP, INC. OR ANY SUBSIDIARY  THEREOF,  (B) INSIDE THE
UNITED STATES TO A QUALIFIED  INSTITUTIONAL  BUYER IN COMPLIANCE  WITH RULE 144A
UNDER THE  SECURITIES  ACT,  (C) INSIDE THE  UNITED  STATES TO AN  INSTITUTIONAL
ACCREDITED  INVESTOR  THAT,  BEFORE SUCH  TRANSFER,  FURNISHES TO AMERICAN STOCK
TRANSFER & TRUST COMPANY,  AS TRUSTEE (OR SUCCESSOR TRUSTEE,  AS APPLICABLE),  A
SIGNED LETTER CONTAINING CERTAIN  REPRESENTATIONS AND AGREEMENTS RELATING TO THE
RESTRICTIONS ON TRANSFER OF THE NOTE EVIDENCED  HEREBY (THE FORM OF WHICH LETTER
CAN BE OBTAINED FROM SUCH TRUSTEE),  (D) OUTSIDE THE UNITED STATES IN COMPLIANCE
WITH RULE 904 UNDER THE  SECURITIES  ACT,  (E)  PURSUANT TO THE  EXEMPTION  FROM
REGISTRATION  PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF  AVAILABLE),  OR
(F) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER
THE  SECURITIES  ACT (AND WHICH  CONTINUES  TO BE  EFFECTIVE AT THE TIME OF SUCH
TRANSFER);  AND (3) AGREES THAT IT WILL  DELIVER TO EACH PERSON TO WHOM THE NOTE
EVIDENCED HEREBY IS TRANSFERRED  (OTHER THAN A TRANSFER  PURSUANT TO CLAUSE 2(F)
ABOVE), A NOTICE  SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH
ANY TRANSFER OF THE NOTE  EVIDENCED  HEREBY  WITHIN TWO YEARS AFTER THE ORIGINAL
ISSUANCE OF SUCH NOTE,  (OTHER THAN A TRANSFER  PURSUANT TO CLAUSE 2(E)  ABOVE),
THE  HOLDER  MUST  CHECK THE  APPROPRIATE  BOX SET FORTH ON THE  REVERSE  HEREOF
RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT THIS  CERTIFICATE TO AMERICAN
STOCK  TRANSFER  &  TRUST  COMPANY,   AS  TRUSTEE  (OR  SUCCESSOR  TRUSTEE,   AS
APPLICABLE).  IF THE  PROPOSED  TRANSFER IS  PURSUANT TO CLAUSE 2(F) ABOVE,  THE
HOLDER MUST,  BEFORE SUCH  TRANSFER,  FURNISH TO AMERICAN STOCK TRANSFER & TRUST
COMPANY, AS TRUSTEE (OR SUCCESSOR TRUSTEE, AS APPLICABLE),  SUCH CERTIFICATIONS,
LEGAL OPINIONS OR OTHER  INFORMATION  AS THE COMPANY MAY  REASONABLY  REQUIRE TO
CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION  FROM, OR IN A
TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.
THIS  LEGEND  WILL BE  REMOVED  UPON THE  EARLIER  OF THE  TRANSFER  OF THE NOTE
EVIDENCED  HEREBY  PURSUANT TO CLAUSE 2(F) ABOVE OR THE  EXPIRATION OF TWO YEARS
FROM THE ORIGINAL  ISSUANCE OF THE NOTE EVIDENCED  HEREBY.  AS USED HEREIN,  THE
TERMS  "OFFSHORE  TRANSACTION,"  "UNITED  STATES"  AND  "U.S.  PERSON"  HAVE THE
MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT.


 
053113\1008\02764\979QGT85.OTH
                                      A2-3

     Section 20. Interest.  Key Energy Group, Inc., a Maryland  corporation (the
"Company"),  promises  to pay  interest  on the  principal  amount  of  this  5%
Convertible  Subordinated  Note due  2004  (the  "Note")  at the rate and in the
manner specified below.

     The Company will pay interest semi-annually on September 15 and March 15 of
each year  commencing  March 15, 1998, or if any such day is not a Business Day,
on the next Business Day (each an "Interest  Payment Date") to record holders of
Notes ("Holders") at the close of business on September 1 or March 1 immediately
preceding the applicable Interest Payment Date. A copy of the Indenture (defined
below),  the Registration  Rights  Agreement and all other agreements  affecting
this Note or the Holders may be obtained from the Company upon request.

     Interest  shall be computed on the basis of a 360-day  year  consisting  of
twelve 30-day  months.  Interest shall accrue from the most recent date to which
interest  has been paid or, if no interest  has been paid,  from the date of the
original  issuance of this Note.  To the extent  lawful,  the Company  shall pay
interest on overdue  principal at the rate of 1% per annum in excess of the then
applicable  interest  rate on this  Note;  it  shall  pay  interest  on  overdue
installments of interest (without regard to any applicable grace periods) at the
same rate to the extent lawful.

     Section 1. Method of Payment.  The Company  shall pay interest on the Notes
(except  defaulted  interest)  to Holders at the close of business on the record
date next preceding the Interest  Payment Date,  even if such Notes are canceled
after such record date and on or before such Interest  Payment Date.  The Holder
hereof must  surrender this Note to a Paying Agent (as defined in the Indenture)
to collect principal  payments.  The Company shall pay principal and interest in
money of the  United  States  that at the time of  payment  is legal  tender for
payment of public and private debts. The Company, however, may pay principal and
interest  by check  payable in such money.  It may mail an  interest  check to a
Holder's registered address.

     Section 2. Paying Agent and Registrar.  Initially, the Trustee shall act as
Paying Agent and Registrar.  The Company may change any Paying Agent,  Registrar
or co-  Registrar  without  notice to any  Holder.  The  Company  and any of its
Subsidiaries may act in any such capacity.

     Section 3.  Indenture.  The Company  issued the Notes  under an  Indenture,
dated as of September 25, 1997 (the "Indenture"), among the Company and American
Stock Transfer & Trust Company, as 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 (15 U.S. Code  SS 77aaa-77bbbb),  as amended by the
Trust  Indenture  Reform  Act of  1990,  and as in  effect  on the  date  of the
Indenture.  The Notes are subject to all such terms, and Holders are referred to
the  Indenture  and such Act for a  statement  of such  terms.  The terms of the
Indenture shall govern any inconsistencies  between the Indenture and the Notes.
Capitalized  terms used herein that are not  specifically  defined  herein shall
have the meanings set forth in the  Indenture.  The Notes are unsecured  general
obligations  of the  Company  limited to  $216,000,000  in  aggregate  principal
amount.


 
     053113\1008\02764\979QGT85.OTH A2-4

     Section 4.  Optional  Redemption.  The Company may redeem at any time on or
after  September 15, 2000, all or any portion of the  Securities  outstanding at
the  following  redemption  prices  expressed as a percentage  of the  principal
amount  thereof,  if the  Securities  are redeemed  during the  12-month  period
beginning September 15, of the following years:


Year                                                            Percentage

2000.....................................................          102.86%

2001.....................................................          102.14%

2002.....................................................          101.43%

2003.....................................................          100.71%

2004.....................................................           100%



     Section 5.  Redemption  or  Repurchase  at Option of Holder.  If there is a
Change in Control (as defined in the Indenture), the Company will be required to
offer to  purchase  on the Change in  Control  Payment  Date (as  defined in the
Indenture) all outstanding  Notes at 100% of the principal amount thereof,  plus
accrued and unpaid  interest to the date of  purchase.  Holders  whose Notes are
subject  to an offer to  purchase  will  receive an offer to  purchase  from the
Company  prior to any related  Change in Control  Payment  Date and may elect to
have their Notes purchased by completing the form entitled  "Option of Holder to
Elect Purchase" appearing below.

     Section 6. Notice of  Redemption.  Notice of  redemption  will be mailed at
least 30 days but not  more  than 45 days  before  the  redemption  date to each
Holder to be redeemed at its registered  address.  Notes may be redeemed in part
but only in whole multiples of $1,000,  unless all of the Notes held by a Holder
are to be redeemed.  On and after the redemption date, interest ceases to accrue
on Notes or portions of them called for redemption.

     Section 7.  Conversion.  Subject to the  provisions of the  Indenture,  the
Holder  hereof has the right,  at its  option,  at any time on or after 270 days
after the Issue Date and on or before the  maturity,  to convert  the  principal
hereof or any portion of such  principal  that is $1,000 or a multiple  thereof,
into, at the Company's option, (a) cash in an amount equal to the Current Market
Price,  as of the  conversion  date,  of the Common Stock to which the principal
would  otherwise  be  converted,  or (b) that number of shares of the  Company's
Common Stock (as such shares shall then be constituted) obtained by dividing the
principal  amount  of this  Note  or  portion  thereof  to be  converted  by the
conversion  price of $38.50,  or such conversion  price as adjusted from time to
time as provided in the Indenture or (c) a combination  of cash and Common Stock
in  proportions  determined  by the  Company in its sole  discretion;  provided,
however,  that the Company's option to convert the principal into cash or into a
combination of cash and Common Stock,  shall  terminate at the close of business
on the date the Company's charter is amended to increase the number of shares of

 
053113\1008\02764\979QGT85.OTH
                                      A2-5

     authorized  Common  Stock to at least that number of shares  sufficient  to
reserve for the conversion of all the Notes.

     The right to convert  with respect to any Security or portion of a Security
that shall be called for redemption or delivered for repurchase, shall terminate
at the close of business on the date fixed for  redemption  of such  Security or
portion of a Security or the second  trading  day  preceding a Change in Control
Payment  Date,  as the case may be,  unless the Company shall default in payment
due upon redemption or repurchase thereof.

     No  adjustments  in respect of interest or dividends  will be made upon any
conversion;  provided,  however,  that if the  Note  shall  be  surrendered  for
conversion  during the period  from the close of business on any record date for
the payment of interest  to the  opening of business on the  following  interest
payment  date,  this Note (unless it or the portion being  converted  shall have
been called for  redemption on a date in such period) must be  accompanied by an
amount,  in funds  acceptable to the Company,  equal to the interest  payable on
such  interest  payment  date  on  the  principal  amount  being  converted.  No
fractional shares will be issued upon any conversion,  but an adjustment in cash
shall be made,  as provided in the  Indenture,  in respect of any  fraction of a
share which would  otherwise be issuable upon the surrender of any Note or Notes
for  conversion.  A holder of Notes is not entitled to any rights of a holder of
Common Stock until such holder has converted his Notes to Common Stock, and only
to the extent such Notes are to have been  converted  to Common  Stock under the
Indenture.

     The  conversion  price is subject to adjustment in accordance  with Section
10.5 of the Indenture.

     Section  8.  Subordination.  The  Securities  are  subordinated  to  Senior
Indebtedness  (as  defined  in the  Indenture).  To the extent  provided  in the
Indenture,  Senior  Indebtedness  must be paid before the Securities may be paid
either by the Company or any guarantor of  Obligations  under this Indenture and
the Note. The Company agrees, and each Holder by accepting a Security agrees, to
the  subordination  provisions  contained in the  Indenture and  authorizes  the
Trustee to give effect to such provisions,  and each Holder appoints the Trustee
his  attorney-in-fact  for any and all such  purposes.  This Note  shall be pari
passu,  in all  respects,  with  the  Existing  Debentures  (as  defined  in the
Indenture),  except that the Existing  Debentures have the benefit of guarantees
by the Company's Subsidiaries.

     Section  9.  Denominations,  Transfer,  Exchange.  The Notes are  initially
issued in global  form.  The  global  Note  represents  such of the  outstanding
Securities as shall be specified  therein or endorsed thereon in accordance with
the Indenture.  The definitive Securities are in registered form without coupons
in denominations of $1,000 and whole multiples of $1,000.  The transfer of Notes
may be registered and Notes may be exchanged as provided in the  Indenture.  The
Registrar and the Trustee may require a Holder,  among other things,  to furnish
appropriate  endorsements  and transfer  documents and to pay any taxes and fees
required by law or permitted by the  Indenture.  The Registrar need not exchange
or  register  the  transfer  of any  Note or  portion  of an Note  selected  for
redemption. Also, it need not exchange or register the transfer of any Notes for
a period of 15 days before a selection of Notes to be redeemed.

 
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     Section 10. Persons Deemed  Owners.  Before due  presentment to the Trustee
for  registration  of the transfer of this Note, the Trustee,  any Agent and the
Company may deem and treat the person in whose name this Note is  registered  as
its  absolute  owner for the purpose of  receiving  payment of  principal of and
interest on this Note and for all other purposes whatsoever, whether or not this
Note is overdue,  and neither the  Trustee,  any Agent nor the Company  shall be
affected by notice to the contrary.  The  registered  holder of an Note shall be
treated as its owner for all purposes.

     Section 11.  Amendments  and Waivers.  Subject to certain  exceptions,  the
Indenture or the Securities may be amended with the consent of the Holders of at
least a majority in principal amount of the then outstanding Securities, and any
existing  default  (except a payment  default) may be waived with the consent of
the  holders  of  a  majority  in  principal  amount  of  the  then  outstanding
Securities.  Without the consent of any Holder,  the Indenture or the Securities
may be amended to cure any ambiguity,  defect or  inconsistency,  to provide for
assumption of Company  obligations to Holders,  to make any change that does not
adversely  affect the rights of any Holder,  to provide  for any  uncertificated
Notes in addition to certificated  Notes, or to comply with  requirements of the
Commission  in order to effect or maintain the  qualification  of the  Indenture
under the TIA.

     Section 12. Defaults and Remedies.  Events of default  include:  default in
payment  of  interest  on the  Securities  for 30 days;  default  in  payment of
principal of or premium on the Securities  when due;  failure by the Company for
60 days after notice to it to comply with its agreements in the Indenture or the
Securities;  defaults under and acceleration  before express maturity of certain
other Indebtedness that aggregates  $25,000,000 or more; certain final judgments
which  remain  undischarged  if the  aggregate  of all  such  judgments  exceeds
$25,000,000 or more;  certain final judgments  which remain  undischarged if the
aggregate  of all such  judgments  exceeds  $25,000,000;  and certain  events of
bankruptcy or insolvency.  If an Event of Default occurs and is continuing,  the
Trustee  or  the  Holders  of at  least  25% in  principal  amount  of the  then
outstanding  Securities  may  declare all the  Securities  to be due and payable
immediately, except that in the case of an Event of Default arising from certain
events of bankruptcy or insolvency,  all outstanding  Securities  become due and
payable  immediately  without  further  action  or  notice  and all  outstanding
Securities,  and  all  Obligations  and  Claims  with  respect  thereto,  become
immediately  due and  payable.  Holders  may not enforce  the  Indenture  or the
Securities  except  as  provided  in the  Indenture.  The  Trustee  may  require
indemnity satisfactory to it before it enforces the Indenture or the Securities.
Subject to certain limitations, Holders of a majority in principal amount of the
then outstanding  Securities may direct the Trustee in its exercise of any trust
or power. The Trustee may withhold from Holders notice of any continuing default
(except a default in payment of principal or  interest)  if it  determines  that
withholding  notice is in their  interests.  The Company  must furnish an annual
compliance certificate to the Trustee.

     Section 13. Trustee Dealings with Company. The Trustee under the Indenture,
in its  individual or any other  capacity,  may make loans to,  accept  deposits
from, and perform services for the Company or its Affiliates,  and may otherwise
deal with the Company or its  Affiliates,  as if it were not Trustee;  provided,
however,  that if the Trustee acquires any conflicting  interest as described in
the Trust Indenture Act, it must eliminate such conflict or resign.

 
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     Section 14. No Recourse  Against Others.  No director,  officer,  employee,
agent,  manager,  stockholder or other  Affiliates of the Company shall have any
liability  for  any  obligations  of  the  Company  under  the  Securities,  the
Indenture,  or for any  claim  based  on,  in  respect  of or by  reason of such
obligations  or their  creation.  Each  Holder by  accepting  a Note  waives and
releases  all  such   liability.   The  waiver  and  release  are  part  of  the
consideration for the issuance of the Notes.

     Section   15.   Authentication.   This  Note  shall  not  be  valid   until
authenticated by the manual signature of the Trustee or an authenticating agent.

     Section 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  entireties),  JT TEN (= joint tenants with right of survivorship
and not as tenants in common),  CUST = Custodian),  and U/G/M/A (= Uniform Gifts
to Minors Act).

     Section 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 and has  directed  the  Trustee to use
CUSIP  numbers  in  notices  of  redemption  as a  convenience  to  Holders.  No
representation  is made as to the accuracy of such numbers  either as printed on
the Notes or as contained in any notice of redemption and reliance may be placed
only on the other identification number placed thereon.

     Section 18. Additional Rights of Holders of Transfer Restricted Securities.
In addition to the rights provided to Holders of Securities under the Indenture,
Holders of Transferred Restricted Securities shall have all the rights set forth
in the Registration  Rights  Agreement  referred to in the Indenture and certain
other agreements executed and delivered in connection therewith.

     The Company  will  furnish to any Holder upon  written  request and without
charge a copy of the Indenture. Request may be made to:

                           Key Energy Group, Inc.
                           Two Tower Center, Tenth Floor
                           East Brunswick, New Jersey 08816
                           Attn: Francis D. John



 
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                                                  ASSIGNMENT FORM

     To assign this  Security,  fill in the form  below:  (I) or (we) assign and
transfer this Security to

                                                                               
                                   (Insert assignee's soc. sec. or tax I.D. no.)

                                                                             
                                                                               
                                                                              
                                                                              
                       (Print or type assignee's name, address and zip code)

and irrevocably appoint                                                        
                            agent to transfer this Security on the books of the
Company.  The agent may substitute another to act for him.


Date:                               
                Your Signature:                                               
                                       (Sign exactly as your name appears
                                           on the face of this Security)

Signature Guaranteed:



By:                                                                    
(THE SIGNATURE(S) SHOULD BE GUARANTEED
BY AN ELIGIBLE GUARANTOR INSTITUTION
(Banks, Stock Brokers, 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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                                                       A2-9

                       OPTION OF HOLDER TO ELECT PURCHASE

     If you want to elect to have all or any part of this Security  purchased by
the Company pursuant to Section 4.10 of the Indenture (Change in Control), state
the   amount   you   elect   to  have   purchased   (if   all,   write   "ALL"):
$__________________________

Date:                               

                 Your Signature:                                               
                                          (Sign exactly as your name appears
                                               on the face of this Security)

Signature Guaranteed:



By:                                                                    
(THE SIGNATURE(S) SHOULD BE GUARANTEED
BY AN ELIGIBLE GUARANTOR INSTITUTION
(Banks, Stock Brokers, 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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          SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL SECURITIES 2

     The following  exchanges of a part of this Global  Security for  Definitive
Securities have been made:


     Amount of Principal Signature of decrease in Amount of Amount of authorized
Date of  Principal  Increase  in this  Global  officer  of  Exchange  Amount  of
Principal  Security  Trustee  or  this  Global  Amount  of this  following  such
Securities Security Global Security decrease (or Custodian increase)

     -------------------   -----------------------    --------------------------
- ------------------------- ---------------------------




     -------- 2 This is to be included only if the Security is in global form

 
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