AMENDED AND RESTATED CREDIT AGREEMENT,  dated as of June 6. 1997, as amended and
restated  through  November 6, 1997,  among KEY ENERGY  GROUP,  INC., a Maryland
corporation (the "Borrower"), the several banks and other financial institutions
or entities from time to time parties to this  Agreement  (the  "Lenders"),  PNC
BANK, NATIONAL  ASSOCIATION,  as Administrative  Agent for the Lenders hereunder
(in such capacity,  the  "Administrative  Agent"),  NORWEST BANK TEXAS, N.A., as
Collateral  Agent for the Lenders  hereunder (in such capacity,  the "Collateral
Agent") and PNC CAPITAL  MARKETS,  INC.,  as arranger with respect to the credit
facilities contained herein (in such capacity, the "Arranger").


                              W I T N E S S E T H :


WHEREAS, the Borrower,  the Lenders, the Administrative Agent and the Collateral
Agent are parties to the Credit Agreement,  dated as of June 6, 1997 (as amended
prior to the date hereof, the "Existing Credit Agreement");

WHEREAS,  pursuant to the Existing Credit Agreement,  the Lenders have over time
made term loans ("Term Loans") and revolving credit loans  ("Existing  Revolving
Credit  Loans")  to, and have  issued  letters of credit  ("Existing  Letters of
Credit")  for the account  of, the  Borrower  which are secured  pursuant to the
Security Documents (as hereinafter defined);

WHEREAS,  the Term Loans have been paid and the Borrower desires to increase the
amount of the commitment for revolving  credit loans and to modify certain other
provisions of the Existing Credit Agreement; and

WHEREAS,  this Amended and Restated Credit  Agreement is intended to confirm and
evidence (i) the amendment and restatement and continuation (but not payment) of
the existing  obligations  of the Loan Parties under the Loan Documents and (ii)
the  continuation as security for the  indebtedness  and obligations  under this
Amended and Restated Agreement and the other Loan Documents, without any release
or termination whatsoever, of all liens and security interests granted under and
in connection with the Existing Credit Agreement and the other Loan Documents;

ACCORDINGLY,  the parties  hereto  hereby  agree that on the Closing  Date,  the
Existing Credit Agreement is hereby amended and restated in its entirety to read
as follows:

                             SECTION 1. DEFINITIONS

1.1 Defined Terms. As used in this Agreement, the following terms shall have the
following meanings:

"Adjustment  Date":  each date on or after  December 31, 1997 that is the second
Business  Day  following  receipt  by the  Lenders  of both  (i)  the  financial
statements  required to be delivered  pursuant to Section  6.1(a) or 6.1(b),  as
applicable,  for the most  recently  completed  fiscal  period  (which  shall be
December  31,  1997,  in  the  case  of  the  Adjustment  Date  occurring  on or
immediately after December 31, 1997) and (ii) the related compliance certificate
required to be delivered  pursuant to Section 6.2(b) with respect to such fiscal
period.

"Administrative Agent": as defined in the preamble hereto.

"Affiliate":  as to any Person, any other Person which,  directly or indirectly,
is in control  of, is  controlled  by, or is under  common  control  with,  such
Person. For purposes of this definition,  "control" of a Person means the power,
directly or indirectly,  either to (a) vote 10% or more of the securities having
ordinary voting power for the election of directors of such Person or (b) direct
or cause the direction of the management and policies of such Person, whether by
contract or otherwise.  Notwithstanding  the foregoing (i) no  Subsidiary of the
Borrower  shall  be  deemed  to be an  Affiliate  of the  Borrower  and  (ii) no
Affiliate of any  investment  company that controls the Borrower shall be deemed
to be an Affiliate  of the  Borrower  solely  because  such  investment  company
Affiliate is in control of, is controlled  by, or is under common  control with,
such investment company.

"Agents": the collective reference to the Arranger, the Collateral Agent and the
Administrative Agent.

"Aggregate  Outstanding  Extensions of Credit": as to any Lender at any time, an
amount equal to the sum of (a) the aggregate  principal amount of all Loans made
by such Lender then  outstanding  and (b) such  Lender's  Percentage  of the L/C
Obligations then outstanding.

"Agreement":  this Credit  Agreement,  as  amended,  supplemented  or  otherwise
modified from time to time.

"Applicable  Margin":  During the period from the  Closing  Date until the first
Adjustment  Date,  0.00% for Loans which are Base Rate Loans and 1.25% for Loans
which are Eurodollar  Loans. The Applicable Margin for Loans will be adjusted on
each  Adjustment  Date to the  applicable  rate per annum  set  forth  under the
heading  "Applicable Margin for Loans which are Eurodollar Loans" or "Applicable
Margin  for Loans  which are Base  Rate  Loans",  as the case may be, on Annex I
which  corresponds to the  Consolidated  Leverage  Ratio as determined  from the
financial  statements  and  compliance  certificate  relating  to the end of the
fiscal period immediately  preceding such Adjustment Date;  provided that in the
event that the financial statements required to be delivered pursuant to Section
6.1(a) or 6.1(b), as applicable, and the related compliance certificate required
to be delivered pursuant to Section 6.2(b), are not delivered when due, then

(i)  if such financial statements and compliance certificate are delivered after
     the date such financial statements and compliance certificate were required
     to be delivered  (without  giving effect to any applicable cure period) and
     the Applicable  Margin increases from that previously in effect as a result
     of the delivery of such financial statements, then the Applicable Margin in
     respect  of the Loans  during  the  period  from the date upon  which  such
     financial  statements were required to be delivered  (without giving effect
     to any applicable  cure period) until the date upon which they actually are
     delivered shall, except as otherwise provided in clause (iii) below, be the
     Applicable Margin as so increased;

(ii) if such financial statements and compliance certificate are delivered after
     the date such financial statements and compliance certificate were required
     to be delivered and the Applicable Margin decreases from that previously in
     effect as a result of the delivery of such financial statements,  then such
     decrease in the  Applicable  Margin shall not become  applicable  until the
     date upon which the  financial  statements  and  certificate  actually  are
     delivered; and

(iii)if such financial  statements and compliance  certificate are not delivered
     prior to the expiration of the applicable cure period, then, effective upon
     such  expiration,  for the period  from the date upon which such  financial
     statements and compliance  certificate were required to be delivered (after
     the  expiration  of the  applicable  cure period)  until two Business  Days
     following the date upon which they actually are  delivered,  the Applicable
     Margin in  respect of Loans  shall be 0.00% per annum,  in the case of Base
     Rate Loans,  and 1.50% per annum, in the case of Eurodollar Loans (it being
     understood   that  the  foregoing   shall  not  limit  the  rights  of  the
     Administrative Agent and the Lenders set forth in Section 8).

"Application":  an  application,  in such form as the Issuing Lender may specify
from time to time, requesting the Issuing Lender to issue a Letter of Credit.

"Argentine Subsidiaries": Kenting and Servicios.

"Arranger": as defined in the preamble hereto.

"Assignee": as defined in Section 10.6(c).

"Available  Commitment":  as to any Lender at any time,  an amount  equal to the
excess, if any, of (a) such Lender's Commitment over (b) such Lender's Aggregate
Outstanding Extensions of Credit.

"Base Rate": for any day, a rate per annum equal to the greater of (a) the Prime
Rate in effect on such day, and (b) the Federal Funds  Effective  Rate in effect
on such day plus 1/2 of 1%. For  purposes  hereof:  "Prime  Rate" shall mean the
rate of interest per annum  established from time to time by PNC Bank,  National
Association  as its prime rate in effect at its  principal  office in Pittsburgh
(the Prime Rate not being intended to be the lowest rate of interest  charged by
PNC Bank,  National  Association  in  connection  with  extensions  of credit to
debtors);  and  "Federal  Funds  Effective  Rate" shall mean,  for any day,  the
weighted  average of the rates on  overnight  federal  funds  transactions  with
members of the Federal  Reserve  System  arranged by federal funds  brokers,  as
published on the next  succeeding  Business  Day by the Federal  Reserve Bank of
New York,  or, if such rate is not so published  for any day which is a Business
Day, the average of the quotations for the day of such transactions  received by
the Administrative Agent from three federal funds brokers of recognized standing
selected by it. Any change in the Base Rate due to a change in the Prime Rate or
the  Federal  Funds  Effective  Rate  shall be  effective  as of the  opening of
business  on the  effective  day of such change in the Prime Rate or the Federal
Funds Effective Rate, respectively.

"Base Rate Loans":  Loans the rate of interest applicable to which is based upon
the Base Rate.

"Board":  the Board of  Governors  of the Federal  Reserve  System of the United
States (or any successor).

"Borrower": as defined in the preamble hereto.

"Borrowing Date": any Business Day specified in a notice pursuant to Section 2.2
as a date on which the Borrower requests the Lenders to make Loans hereunder.

"Business  Day": (a) for all purposes other than as covered by clause (b) below,
a day other than a Saturday,  Sunday or other day on which  commercial  banks in
New York City are authorized or required by law to close and (b) with respect to
all notices and determinations in connection with, and payments of principal and
interest on,  Eurodollar  Loans,  any day which is a Business  Day  described in
clause (a) and which is also a day for  trading by and  between  banks in Dollar
deposits in the interbank eurodollar market.

"Capital  Expenditures":  for  any  period,  with  respect  to any  Person,  the
aggregate  of all  expenditures  by such  Person  and its  Subsidiaries  for the
acquisition  or  leasing  (pursuant  to a  Financing  Lease) of fixed or capital
assets or additions to equipment (including replacements and improvements during
such period) which should be capitalized  under GAAP on a  consolidated  balance
sheet of such Person and its Subsidiaries;  provided that "Capital Expenditures"
shall   not   include    (i) expenditures   for   Permitted    Acquisitions   or
(ii) expenditures  by any Person  prior to the time such Person was  acquired by
the Borrower or any Subsidiary in a Permitted Acquisition.

"Capital Lease Obligations": as to any Person, the obligations of such Person to
pay rent or other  amounts  under any  Financing  Lease and, for the purposes of
this  Agreement,  the  amount  of such  obligations  at any  time  shall  be the
capitalized amount thereof at such time determined in accordance with GAAP.

"Capital Stock":  any and all shares of capital stock of a corporation,  and any
and all equivalent ownership interests in a Person (other than a corporation).

"Cash   Equivalents":   (a)  marketable   direct   obligations   issued  by,  or
unconditionally  guaranteed  by, the United  States  Government or issued by any
agency thereof and backed by the full faith and credit of the United States,  in
each case  maturing  within  one year from the date of  acquisition;  (b) demand
deposits,  certificates of deposit,  time deposits,  eurodollar time deposits or
overnight bank deposits having maturities of twelve months or less from the date
of acquisition  issued by any Lender or by any commercial  bank organized  under
the laws of the United States or any state thereof having  combined  capital and
surplus of not less than  $250,000,000;  (c)  commercial  paper of (i) an issuer
rated at least A-1 by  Standard  & Poor's  Ratings  Services  or P-1 by  Moody's
Investors  Service,  Inc.,  or carrying  an  equivalent  rating by a  nationally
recognized  rating  agency,  if both  of the two  named  rating  agencies  cease
publishing  ratings of commercial  paper  issuers  generally or (ii) the holding
company of any Lender,  and, in either case,  maturing within twelve months from
the date of acquisition;  and (d) money market funds the assets of which consist
primarily  of  obligations  of the types  referred to in clauses (a) through (c)
above.

"Change of Control": a "Change of Control" shall be deemed to occur if a "Change
in Control" (as defined in the 1997  Indenture or, if the 1997  Indenture  shall
have been terminated, as defined in the 1997 Indenture immediately prior to such
termination) shall occur.

"Closing Date": the date on which the conditions  precedent set forth in Section
5.1 shall be satisfied.

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

"Collateral":  all assets of the Loan Parties,  now owned or hereafter acquired,
upon which a Lien is purported to be created by any Security Document.

"Collateral Agent": as defined in the preamble hereto.

"Collateral  Release  Date":  the date upon  which  the Liens on the  Collateral
granted pursuant to the Security  Documents are released  pursuant to subsection
10.17.

"Collateral  Release  Event":  shall occur at any time, so long as no Default or
Event of Default shall have occurred and be continuing at such time:  (a) if the
senior  unsecured  credit rating for the Borrower's  senior unsecured debt is at
least Ba1 by Moody's and BB+ by S&P; or (b) if the 1997 Convertible Subordinated
Notes of the Borrower is rated at least Ba2 by Moody's and BB by S&P.

"Commercial Letter of Credit": as defined in Section 3.1(a).

"Commitment":  as to any Lender,  the obligation of such Lender, if any, to make
Loans to and/or issue or  participate  in Letters of Credit  issued on behalf of
the  Borrower  hereunder  in an  aggregate  principal  and/or face amount not to
exceed  the  amount  set forth  under the  heading  "Commitment"  opposite  such
Lender's  name on Schedule  1.1A,  as the same may be changed  from time to time
pursuant  to the terms  hereof  and as the same  shall be  reduced  pursuant  to
Section 2.1(c).

"Commitment  Period":  the period from and including the Closing Date to but not
including the  Termination  Date, or such earlier date on which the  Commitments
shall have been terminated.

"Commonly Controlled Entity": an entity,  whether or not incorporated,  which is
under common  control  with the  Borrower  within the meaning of Section 4001 of
ERISA or is part of a group which  includes the Borrower and which is treated as
a single employer under Section 414 of the Code.

"Confidential  Information Memorandum":  the Confidential Information Memorandum
dated  as of  November,  1997  with  respect  to the  Borrower  and  the  credit
facilities provided for herein.

"Consolidated" or "consolidated":  when used in respect of any Subsidiary or any
financial  statements  or  financial  term  relating  to the  Borrower  and  its
Subsidiaries,  refers  to the  Borrower  and the  Subsidiaries  of the  Borrower
(including  Excluded  Subsidiaries)  whose  accounts are  consolidated  with the
Borrower's accounts in accordance with GAAP.

"Consolidated  EBITDA": with respect to any Person for any period,  Consolidated
Net Income of such Person for such period plus,  without  duplication and to the
extent  reflected as a charge in the statement of such  Consolidated  Net Income
for such period, the sum of (a) total income tax expense,  (b) interest expense,
(c)  depreciation  and  amortization  expense,  (d)  amortization of intangibles
(including,  but not limited  to,  goodwill)  and  organization  costs,  (e) any
extraordinary expenses or losses (including, whether or not otherwise includable
as a separate  item in the  statement of such  Consolidated  Net Income for such
period,  losses on sales of assets outside of the ordinary  course of business),
(f) any other  noncash  charges and (g) if  applicable,  restructuring  charges,
write-off  of  goodwill  and  licensing  agreements,  and  minus,  to the extent
included in the statement of such  Consolidated Net Income for such period,  the
sum of (a) interest income,  (b) any  extraordinary  income or gains (including,
whether or not otherwise  includable as a separate item in the statement of such
Consolidated Net Income for such period, gains on the sales of assets outside of
the ordinary  course of business) and (c) any other  noncash  income (other than
any income  represented  by a receivable  that in the  ordinary  course would be
expected to be paid in cash), all as determined on a consolidated basis.

"Consolidated   Interest  Coverage  Ratio":   for  any  period,   the  ratio  of
(a) Consolidated  EBITDA of the Borrower and its Subsidiaries for such period to
(b) Consolidated Interest Expense for such period.

"Consolidated   Interest  Expense":  for  any  period,  total  interest  expense
(including that  attributable to Capital Lease  Obligations),  both expensed and
capitalized,  of the Borrower and its  Subsidiaries for such period with respect
to all outstanding Indebtedness of the Borrower and its Subsidiaries (including,
without limitation,  all commissions,  discounts and other fees and charges owed
with  respect to letters of credit and  bankers'  acceptance  financing  and net
costs under Interest Rate Protection Agreements to the extent such net costs are
allocable to such period in accordance with GAAP),  determined on a consolidated
basis in accordance  with GAAP, net of interest  income of the Borrowers and its
Subsidiaries for such period  (determined on a consolidated  basis in accordance
with GAAP).

"Consolidated Lease Expense":  for any period, the aggregate amount of fixed and
contingent rentals payable by the Borrower and its Subsidiaries, determined on a
consolidated  basis in  accordance  with GAAP,  for such period with  respect to
leases of real and  personal  property;  provided  that  amounts  payable  under
Financing  Leases and oil and gas leases  shall be  excluded  from  Consolidated
Lease Expense.

"Consolidated  Leverage Ratio":  on the date of any determination  thereof,  the
ratio of (a)  Consolidated  Total Debt on such date, less the amount of cash and
Cash  Equivalents  in  excess  of  $5,000,000  held  by  the  Borrower  and  its
Subsidiaries  on such date to  (b) Consolidated  EBITDA of the  Borrower and its
Subsidiaries  for the four full fiscal  quarters  ending on such date;  provided
that for  purposes of  calculating  Consolidated  EBITDA of the Borrower and its
Subsidiaries  for any  period of four full  fiscal  quarters,  the  Consolidated
EBITDA of any Person  acquired by the Borrower or its  Subsidiaries  during such
period  shall be  included  on a pro forma  basis  for such  period of four full
fiscal  quarters  (assuming the  consummation  of each such  acquisition and the
incurrence or assumption of any Indebtedness in connection therewith occurred on
the first day of such period of four full fiscal quarters and assuming only such
cost  reductions  as are related to such  acquisition  and are  realizable on or
before  the  date of  calculation)  if the  consolidated  balance  sheet of such
acquired  Person and its  consolidated  Subsidiaries as at the end of the period
preceding the acquisition of such Person and the related consolidated statements
of income and  stockholders'  equity and of cash flows for such period  (i) have
been  previously  provided  to the  Administrative  Agent  and the  Lenders  and
(ii) either (A) have been reported on without a qualification arising out of the
scope of the  audit  (other  than a "going  concern"  or like  qualification  or
exception) by independent  certified public accountants of nationally recognized
standing or (B) have been found acceptable by the Administrative Agent.

"Consolidated  Net  Income":  with  respect to any Person  for any  period,  the
consolidated net income (or loss) of such Person for such period,  determined on
a consolidated basis in accordance with GAAP.

"Consolidated  Net Worth":  at a particular  date, as to any Person,  the amount
which would be included under  stockholders'  equity on a  consolidated  balance
sheet of such Person and its Subsidiaries  determined on a consolidated basis in
accordance with GAAP.

"Consolidated  Senior Debt":  with respect to the Borrower and its Subsidiaries,
consolidated  Indebtedness of the Borrower and its Subsidiaries  determined on a
consolidated basis in accordance with GAAP other than Subordinated Indebtedness.

"Consolidated Senior Leverage Ratio": on the date of any determination  thereof,
the ratio of (a) Consolidated  Senior Debt on such date, less the amount of cash
and Cash  Equivalents  in  excess of  $5,000,000  held by the  Borrower  and its
Subsidiaries  on such date to  (b) Consolidated  EBITDA of the  Borrower and its
Subsidiaries  for the four full fiscal  quarters  ending on such date;  provided
that for  purposes of  calculating  Consolidated  EBITDA of the Borrower and its
Subsidiaries  for any  period of four full  fiscal  quarters,  the  Consolidated
EBITDA of any Person  acquired by the Borrower or its  Subsidiaries  during such
period  shall be  included  on a pro forma  basis  for such  period of four full
fiscal  quarters  (assuming the  consummation  of each such  acquisition and the
incurrence or assumption of any Indebtedness in connection therewith occurred on
the first day of such period of four full fiscal quarters and assuming only such
cost  reductions  as are related to such  acquisition  and are  realizable on or
before  the  date of  calculation)  if the  consolidated  balance  sheet of such
acquired  Person and its  consolidated  Subsidiaries as at the end of the period
preceding the acquisition of such Person and the related consolidated statements
of income and  stockholders'  equity and of cash flows for such period  (i) have
been  previously  provided  to the  Administrative  Agent  and the  Lenders  and
(ii) either (A) have been reported on without a qualification arising out of the
scope of the  audit  (other  than a "going  concern"  or like  qualification  or
exception) by independent  certified public accountants of nationally recognized
standing or (B) have been found acceptable by the Administrative Agent.

"Consolidated  Total Debt": at any date, the aggregate  principal  amount of all
Indebtedness  of the  Borrower  and its  Subsidiaries  at such date,  which on a
consolidated  basis in accordance with GAAP would be required to be reflected on
a  consolidated  balance  sheet  of  the  Borrower  and  its  Subsidiaries  as a
liability.

"Contractual Obligation": as to any Person, any provision of any security issued
by such Person or of any  agreement,  instrument or other  undertaking  to which
such Person is a party or by which it or any of its property is bound.

"Convertible   Subordinated   Debentures":   the  7%  Convertible   Subordinated
Debentures due 2003 issued by the Borrower pursuant to the Indenture.

"Default":  any of  the  events  specified  in  Section 8,  whether  or not  any
requirement  for the  giving of  notice,  the lapse of time,  or both,  has been
satisfied.

"Dollars" and "$": dollars in lawful currency of the United States.

"Domestic  Subsidiary":  any Subsidiary of the Borrower organized under the laws
of any jurisdiction within the United States.

"Environmental Consultant": as defined in Section 6.8(c).

"Environmental  Laws": any and all laws, rules, orders,  regulations,  statutes,
ordinances,   codes,   decrees,  or  other  legally   enforceable   requirements
(including,  without  limitation,  common  law) of any foreign  government,  the
United States, or any state, local,  municipal or other governmental  authority,
regulating, relating to or imposing liability or standards of conduct concerning
protection of the environment or of human health, or employee health and safety,
as has been, is now, or at any time hereafter is, in effect.

"Environmental   Permits":  any  and  all  permits,   licenses,   registrations,
approvals, notifications,  exemptions and any other authorization required under
any Environmental Law.

"ERISA":  the Employee  Retirement  Income Security Act of 1974, as amended from
time to time.

"Eurocurrency  Reserve  Requirements":  for any day as applied  to a  Eurodollar
Loan, the aggregate  (without  duplication) of the rates (expressed as a decimal
fraction)  of reserve  requirements  in effect on such day  (including,  without
limitation,  basic,  supplemental,  marginal and  emergency  reserves  under any
regulations of the Board or other  Governmental  Authority  having  jurisdiction
with  respect  thereto)  dealing  with  reserve   requirements   prescribed  for
eurocurrency  funding  (currently  referred to as "Eurocurrency  Liabilities" in
Regulation D of the Board)  maintained  by a member bank of the Federal  Reserve
System.

"Eurodollar  Base Rate":  with respect to each day during each  Interest  Period
pertaining to a Eurodollar  Loan,  the rate per annum of interest  determined on
the  basis  of the rate  for  deposits  in  Dollars  for a period  equal to such
Interest Period commencing on the first day of such Interest Period appearing on
Page 3750 of the Telerate  screen as of 11:00 A.M.,  London  time,  two Business
Days prior to the beginning of such Interest Period. In the event that such rate
does not  appear on Page 3750 of the  Telerate  Service  (or  otherwise  on such
service),  the "Eurodollar  Base Rate" for purposes of this definition  shall be
determined by reference to such other comparable  publicly available service for
displaying  eurodollar rates as may be selected by the Administrative  Agent or,
in the  absence  of such  availability,  by  reference  to the rate at which the
Administrative Agent is offered Dollar deposits at or about 11:00 A.M., New York
City time,  two Business Days prior to the beginning of such Interest  Period in
the interbank  eurodollar  market where its eurodollar and foreign  currency and
exchange  operations  are then being  conducted for delivery on the first day of
such Interest Period for the number of days comprised therein.

"Eurodollar Loans": Loans the rate of interest applicable to which is based upon
the Eurodollar Rate.

"Eurodollar  Rate":  with  respect  to each  day  during  each  Interest  Period
pertaining  to a Eurodollar  Loan, a rate per annum  determined  for such day in
accordance  with the following  formula  (rounded  upward to the nearest 1/100th
of 1%):

                     Eurodollar Base Rate       
              1.00 - Eurocurrency Reserve Requirements

"Eurodollar  Tranche":  the collective  reference to Eurodollar  Loans, the then
current Interest Periods with respect to all of which begin on the same date and
end on the same later date (whether or not such Loans shall originally have been
made on the same day).

"Event of Default":  any of the events specified in Section 8, provided that any
requirement  for the  giving of  notice,  the lapse of time,  or both,  has been
satisfied.

"Excluded Subsidiary" or "Excluded Subsidiaries":  (a) Production Systems, Inc.,
WellTech,  Inc.  (California),   WellTech,   Inc.,  WellTech  Oilfield  Services
(Canada), Ltd., WellTech Oilfield Services Limited, WellTech (Overseas) Limited,
and  Bronson  Transport,  Inc.,  (b)  Thunderbird  Tool  Company,  (c) KEG Canal
Properties,  Inc.,  KEG Villa  Ashley,  Inc.,  KEG Pearl Acres,  Inc.,  KEG Anna
Heights,  Inc.,  KEG Orleans  Place,  Inc.,  and Pyramid Land  Corporation,  and
(d) any other entity which  becomes a Subsidiary  of Borrower  after the date of
this Agreement if such entity has assets with a book value of $1,000,000 or less
and annual revenues of $1,000,000 or less;  provided that all entities deemed to
be  Excluded  Subsidiaries  under  this  subsection  (d)  may not  have,  in the
aggregate,  assets with a book value  exceeding  $5,000,000  or annual  revenues
exceeding $5,000,000.

"Existing Credit Agreement": as defined in the recitals hereto.

"Existing Letters of Credit": as defined in Section 3.1.

"Existing Revolving Credit Loans": as defined in the recitals hereto.

"Financing Lease": any lease (or other similar  arrangement  conveying the right
to use) of property,  real or personal, the obligations of the lessee in respect
of which are required in  accordance  with GAAP to be  capitalized  on a balance
sheet of the lessee.

"Foreign Subsidiary": any Subsidiary of the Borrower organized under the laws of
any jurisdiction outside the United States.

"GAAP":  generally accepted accounting principles in the United States in effect
from time to time.

"Governmental Authority": any nation or government, any state or other political
subdivision thereof and any entity exercising executive, legislative,  judicial,
regulatory or administrative functions of or pertaining to government.

"Guarantee  Obligation":  as to any  Person  (the  "guaranteeing  person"),  any
obligation  of (a) the  guaranteeing  person or (b) another  Person  (including,
without limitation,  any bank under any letter of credit) to induce the creation
of which the guaranteeing person has issued a reimbursement, counterindemnity or
similar  obligation,  in either case guaranteeing or in effect  guaranteeing any
Indebtedness, leases, dividends or other obligations (the "primary obligations")
of any other  third  Person  (the  "primary  obligor")  in any  manner,  whether
directly or indirectly,  including,  without  limitation,  any obligation of the
guaranteeing person, whether or not contingent, (i) to purchase any such primary
obligation or any property  constituting  direct or indirect security  therefor,
(ii) to  advance  or supply  funds (1) for the  purchase  or payment of any such
primary  obligation or (2) to maintain  working capital or equity capital of the
primary  obligor or  otherwise  to  maintain  the net worth or  solvency  of the
primary obligor,  (iii) to purchase  property,  securities or services primarily
for the  purpose of assuring  the owner of any such  primary  obligation  of the
ability of the primary  obligor to make  payment of such primary  obligation  or
(iv)  otherwise  to  assure  or hold  harmless  the  owner of any  such  primary
obligation  against loss in respect thereof;  provided,  however,  that the term
Guarantee  Obligation shall not include  endorsements of instruments for deposit
or  collection in the ordinary  course of business.  The amount of any Guarantee
Obligation of any guaranteeing  person shall be deemed to be the lower of (a) an
amount equal to the stated or determinable  amount of the primary  obligation in
respect of which such  Guarantee  Obligation is made and (b) the maximum  amount
for which such  guaranteeing  person may be liable  pursuant to the terms of the
instrument embodying such Guarantee  Obligation,  unless such primary obligation
and the maximum amount for which such guaranteeing  person may be liable are not
stated or  determinable,  in which case the amount of such Guarantee  Obligation
shall be such guaranteeing person's maximum reasonably  anticipated liability in
respect thereof as determined by the Borrower in good faith.

"Hedge  Obligations":   as  defined  in  the  Master  Guarantee  and  Collateral
Agreement.

"Indebtedness":  of any  Person  at  any  date,  without  duplication,  (a)  all
indebtedness  of such Person for borrowed  money,  (b) all  obligations  of such
Person for the deferred purchase price of property or services (other than trade
payables and accrued  expenses  incurred in the ordinary course of such Person's
business not more than 150 days past due or being contested in good faith),  (c)
all obligations of such Person  evidenced by notes,  bonds,  debentures or other
similar  instruments,   (d)  all  indebtedness  created  or  arising  under  any
conditional  sale or other title  retention  agreement  with respect to property
acquired by such Person,  (e) all Capital Lease Obligations of such Person,  (f)
all  obligations,  contingent or  otherwise,  of such Person as an account party
under acceptance, letter of credit or similar facilities (other than obligations
in respect of undrawn  letters of credit  securing trade payables or performance
obligations  incurred in the ordinary  course of business not more than 150 days
past due or being  contested in good faith),  (g) all obligations of such Person
to purchase,  redeem, retire or otherwise acquire for value any Capital Stock of
such  Person,  (h) all  Guarantee  Obligations  of such  Person  in  respect  of
Indebtedness  of  others  and (i) all  obligations  of the kind  referred  to in
clauses  (a)  through  (h) above  secured  by any Lien on  property  (including,
without limitation,  accounts and contract rights) owned by such Person, whether
or not such  Person  has  assumed  or  become  liable  for the  payment  of such
obligation (but if not so assumed, the amount of such obligation shall be deemed
not to exceed the fair market value of the property subject to the Lien).

"Indenture":  the Indenture,  dated as of July 3, 1996, between the Borrower and
American Stock Transfer & Trust Company, as trustee.

"Insolvency":  with respect to any  Multiemployer  Plan, the condition that such
Plan is insolvent within the meaning of Section 4245 of ERISA.

"Insolvent": pertaining to a condition of Insolvency.

"Insurance  Policies":  (i) the  insurance  policies the Borrower is required to
maintain pursuant to Section 6.5 and (ii) the insurance policies the Borrower is
required  to  maintain  pursuant  to  Section  5.3 of the Master  Guarantee  and
Collateral Agreement.

"Interest  Payment  Date":  (a) as to any Base Rate  Loan,  the last day of each
March, June, September and December to occur while such Loan is outstanding, (b)
as to any Eurodollar Loan having an Interest Period of three months or less, the
last day of such  Interest  Period,  (c) as to any  Eurodollar  Loan  having  an
Interest Period longer than three months,  each day which is three months,  or a
whole multiple thereof, after the first day of such Interest Period and the last
day of such Interest Period.

"Interest  Period":  as to  any  Eurodollar  Loan,  (a)  initially,  the  period
commencing on the borrowing or conversion date, as the case may be, with respect
to such Eurodollar Loan and ending one, two, three or six months thereafter,  as
selected by the Borrower in its notice of borrowing or notice of conversion,  as
the case may be, given with respect  thereto;  and (b)  thereafter,  each period
commencing on the last day of the next preceding  Interest Period  applicable to
such  Eurodollar  Loan and ending one, two, three or six months  thereafter,  as
selected by the Borrower by irrevocable notice to the  Administrative  Agent not
less than three Business Days prior to the last day of the then current Interest
Period with  respect  thereto;  provided  that all of the  foregoing  provisions
relating to Interest Periods are subject to the following:

(i)  if any Interest  Period would otherwise end on a day that is not a Business
     Day, such Interest Period shall be extended to the next succeeding Business
     Day  unless the result of such  extension  would be to carry such  Interest
     Period into  another  calendar  month in which event such  Interest  Period
     shall end on the immediately preceding Business Day;

(ii) any Interest Period that would otherwise extend beyond the Termination Date
     shall end on the Termination Date;

(iii)any  Interest  Period  that begins on the last  Business  Day of a calendar
     month (or on a day for which there is no numerically  corresponding  day in
     the calendar  month at the end of such  Interest  Period)  shall end on the
     last Business Day of a calendar month; and

(iv) the Borrower shall select  Interest  Periods so as not to require a payment
     or prepayment  of any  Eurodollar  Loan during an Interest  Period for such
     Loan.

"Interest Rate Protection  Agreement":  any interest rate protection  agreement,
interest rate futures contract, interest rate option, interest rate cap or other
interest  rate  hedge  arrangement,  to or  under  which  the  Borrower  or  any
Subsidiary is a party or a beneficiary  on the date hereof or becomes a party or
a beneficiary after the date hereof.

"Interest Rate Protection Agreement  Obligation":  in respect of any Loan Party,
the obligation of such Loan Party under an Interest Rate Protection Agreement to
make a payment to the counterparty  thereto in the event of a termination  event
or similar occurrence thereunder.

"Issuing  Lender":  (a) with respect to the Existing Letters of Credit,  Norwest
Bank,  and (b) with  respect to any Letters of Credit  issued  after the Closing
Date, any Lender  designated as "Issuing Lender"  hereunder by the Borrower with
the consent of the  Administrative  Agent and such  Lender,  in its  capacity as
issuer of any Letter of Credit.

"Kenting":  Kenting Holdings  (Argentina)  S.A., an Argentine  corporation,  and
Kenting Drilling (Argentina) S.A., an Argentine corporation.

"L/C Commitment": $10,000,000.

"L/C Fee Payment Date": the last day of each March, June, September and December
and the last day of the Commitment Period.

"L/C Obligations":  at any time, an amount equal to the sum of (a) the aggregate
then undrawn and unexpired amount of the then outstanding  Letters of Credit and
(b) the aggregate amount of drawings under Letters of Credit which have not then
been reimbursed pursuant to Section 3.5.

"L/C Participants":  the collective  reference to all the Lenders other than the
Issuing Lender.

"Lenders":  as defined in the preamble  hereto  (which shall include the Issuing
Lender).

"Letters of Credit": as defined in Section 3.1(a).

"Lien": any mortgage, pledge,  hypothecation,  assignment,  deposit arrangement,
encumbrance, lien (statutory or other), charge or other security interest or any
preference,  priority or other security agreement or preferential arrangement of
any kind or nature whatsoever  (including,  without limitation,  any conditional
sale  or  other  title   retention   agreement  and  any  capital  lease  having
substantially  the same economic  effect as any of the foregoing) and any filing
of or agreement to give any  financing  statement  under the Uniform  Commercial
Code (or equivalent statutes) of any jurisdiction.

"Loan": as defined in Section 2.1(a).

"Loan Documents":  this Agreement,  the Notes, the Applications and the Security
Documents.

"Loan Parties":  the Borrower and each Domestic Subsidiary of the Borrower which
is, or is required by the terms hereof to be, a party to a Loan Document.

"Master Guarantee and Collateral Agreement": the Master Guarantee and Collateral
Agreement  executed  and  delivered  by the  Borrower  and each of its  Domestic
Subsidiaries,  substantially  in the  form  of  Exhibit  A, as the  same  may be
amended, supplemented or otherwise modified from time to time.

"Material  Adverse  Effect":  a  material  adverse  effect on (a) the  business,
assets,  property,  condition  (financial  or  otherwise)  or  prospects  of the
Borrower  and  its  Subsidiaries  taken  as  a  whole  or  (b) the  validity  or
enforceability  of this  Agreement  or any of the other  Loan  Documents  or the
rights or remedies of the  Administrative  Agent,  the  Collateral  Agent or the
Lenders hereunder or thereunder.

"Material  Environmental  Amount":  an amount payable by the Borrower and/or its
Subsidiaries  under any  Environmental  Law in excess of $2,500,000 for remedial
costs,  compliance  costs,   compensatory  damages,   punitive  damages,  fines,
penalties or any combination thereof.

"Materials of Environmental Concern": any gasoline or petroleum (including crude
oil or any fraction thereof) or petroleum products,  polychlorinated  biphenyls,
urea-formaldehyde insulation,  asbestos, pollutants,  contaminants,  radioactive
materials,  and any  other  substances  of any  kind,  whether  or not any  such
substance is defined as hazardous or toxic under any Environmental  Law, that is
regulated  pursuant to or could give rise to liability  under any  Environmental
Law.

"Moody's": Moody's Investors Service, Inc.

"Mortgage":  the mortgage or deed of trust made by the appropriate Loan Party in
favor of, or for the  benefit  of, the  Collateral  Agent for the benefit of the
Lenders,  as the same may be amended,  supplemented  or otherwise  modified from
time to time.

"Mortgaged Property": the real property listed on Schedule 1.1B, as to which the
Collateral Agent for the benefit of the Lenders has been granted a Lien pursuant
to the Mortgages and the real property as to which the Collateral  Agent for the
benefit of the Lenders shall be granted a Lien in accordance with Section 6.10.

"Multiemployer Plan": a Plan which is a multiemployer plan as defined in Section
4001(a)(3) of ERISA.

"Net Cash Proceeds":  (a) in connection with the  Significant  Disposition,  the
proceeds  thereof in the form of cash and Cash  Equivalents  (including any such
proceeds received by way of deferred payment of principal  pursuant to a note or
installment receivable or purchase price adjustment receivable or otherwise, but
only as and when  received) of the  Significant  Disposition,  net of attorneys'
fees,  accountants' fees,  investment  banking fees,  brokers' and underwriters'
commissions  paid to  third  parties,  amounts  required  to be  applied  to the
repayment of Indebtedness secured by a Lien expressly permitted hereunder on any
asset which is the subject of the Significant  Disposition  (other than any Lien
in favor of the Collateral Agent for the benefit of the Lenders),  the aggregate
amount of reserves  required in the  reasonable  judgment of the Borrower to pay
contingent  liabilities  with respect to the Significant  Disposition  (provided
that amounts  deducted from aggregate  proceeds  pursuant to this clause and not
actually paid by the Borrower or any of its  Subsidiaries in liquidation of such
contingent  liabilities  shall be  deemed to be Net Cash  Proceeds  and shall be
applied in  accordance  with Section  2.7(c) at such time as the Borrower  shall
reasonably  determine  that such  amounts  are not  required  to pay  contingent
liabilities  with respect to the  Significant  Disposition)  and other customary
fees and expenses  actually  incurred in  connection  therewith and net of taxes
paid or  reasonably  estimated to be payable as a result  thereof  (after taking
into  account  any  available  tax  credits or  deductions  and any tax  sharing
arrangements  with any Person other than the Borrower and its  Subsidiaries) and
(b) in connection  with any issuance or sale of Capital Stock or debt securities
or  instruments or the incurrence of  Indebtedness,  the cash proceeds  received
from such issuance or incurrence,  net of attorneys'  fees,  investment  banking
fees,  accountants'  fees,  underwriting  discounts  and  commissions  and other
customary fees and expenses actually incurred in connection therewith.

"New Loan Parties":  Domestic  Subsidiaries  of the Borrower  acquired after the
closing date of the Existing Credit Agreement and before the Closing Date.

"1997 Convertible Subordinated Notes": the 5% Convertible Subordinated Notes due
2004 issued by the Borrower pursuant to the 1997 Indenture.

"1997  Indenture":  the Indenture,  dated as of September 25, 1997,  between the
Borrower and American Stock Transfer & Trust Company, as trustee.

"Non-Excluded Taxes": as defined in Section 2.16(a).

"Non-U.S. Lender": as defined in Section 2.16(b).

"Norwest Bank": Norwest Bank Texas, N.A.

"Note": as defined in Section 2.4(e).

"Obligations":  the unpaid  principal  of and  interest on  (including,  without
limitation,  interest accruing after the maturity of the Loans and Reimbursement
Obligations  and  interest   accruing  after  the  filing  of  any  petition  in
bankruptcy,  or the  commencement  of any  insolvency,  reorganization  or  like
proceeding,  relating to the Borrower, whether or not a claim for post-filing or
post-petition  interest is allowed in such  proceeding)  the Notes and all other
obligations and liabilities of the Borrower to the Arranger,  the Administrative
Agent or to any Lender, whether direct or indirect,  absolute or contingent, due
or to become due, or now existing or hereafter  incurred,  which may arise under
this  Agreement,  any other Loan Document,  the Letters of Credit,  any Interest
Rate  Protection  Agreement  entered into with any Lender or any other  document
made, delivered or given in connection herewith or therewith, whether on account
of principal,  interest,  reimbursement obligations,  fees, indemnities,  costs,
expenses (including,  without limitation, all fees, charges and disbursements of
counsel to the Administrative Agent and the Collateral Agent) or otherwise.

"Odessa": Odessa Exploration Incorporated.

"Oil and Gas  Mortgages":  mortgages  in favor of the  Collateral  Agent for the
ratable benefit of the Lenders, in form and substance reasonably satisfactory to
the Collateral Agent, covering the Oil and Gas Properties.

"Oil and Gas Properties":  the oil and gas properties described in Schedule 1.1C
which are to be  mortgaged  pursuant  hereto and the oil and gas  property as to
which the  Collateral  Agent for the benefit of the  Lenders  shall be granted a
Lien in accordance with Section 6.10.

"Participant": as defined in Section 10.6(b).

"PBGC":  the  Pension  Benefit  Guaranty  Corporation  established  pursuant  to
Subtitle A of Title IV of ERISA (or any successor).

"Percentage":  as to any Lender at any time, the percentage  which such Lender's
Commitment then constitutes of the aggregate  Commitments (or, at any time after
the  Commitments  shall have expired or  terminated,  the  percentage  which the
aggregate principal amount of such Lender's Aggregate Outstanding  Extensions of
Credit then  outstanding  constitutes of the aggregate  principal  amount of the
Aggregate Outstanding Extensions of Credit of all Lenders then outstanding).

"Permitted  Acquisitions":  the acquisition by the Borrower and its Subsidiaries
of (a) rigs and other well service equipment, (b) well service companies and (c)
oil and gas properties and related equipment or interests therein, provided that
(i), after giving effect to such  acquisitions  and any borrowings  hereunder in
connection therewith, (x) the Consolidated Leverage Ratio shall not be more than
3.75 to 1.00 and (y) the sum of (1) the Borrower's cash and Cash  Equivalents on
hand and (2) the aggregate  Available  Commitments shall be at least $10,000,000
or (ii) after giving effect to such acquisition the Consolidated  Leverage Ratio
is not  increased  and such  acquisition  is funded  solely with the  Borrower's
Capital Stock.

"Person": an individual,  partnership,  corporation, business trust, joint stock
company,  trust,   unincorporated  association,   joint  venture,   Governmental
Authority or other entity of whatever nature.

"Plan":  at a particular  time,  any  employee  benefit plan which is covered by
ERISA and in respect of which the  Borrower or a Commonly  Controlled  Entity is
(or, if such plan were  terminated  at such time,  would under  Section  4069 of
ERISA be deemed to be) an "employer" as defined in Section 3(5) of ERISA.

"Pledged Notes",  "Pledged  Securities" and "Pledged Stock":  each as defined in
the Master Guarantee and Collateral Agreement.

"Pro Forma Balance Sheet": as defined in Section 4.1(a).

"Projections": as defined in Section 6.2(c).

"Properties":  the collective  reference to the real property  owned,  leased or
operated by the Borrower or any of its Subsidiaries (or with respect to Sections
6.8 and 10.5, any of the Excluded Subsidiaries).

"Proved Reserves":  the estimated quantities of crude oil,  condensate,  natural
gas and  natural gas liquids  that  adequate  geological  and  engineering  data
demonstrate  with  reasonable  certainty to be  recoverable in future years from
known reservoirs under existing economic and operating  conditions (i.e., prices
and costs as of the date the estimate is made).

"Register": as defined in Section 10.6(e).

"Reimbursement  Obligation":  the  obligation  of the Borrower to reimburse  the
Issuing  Lender  pursuant  to Section 3.5 for  amounts  drawn  under  Letters of
Credit.

"Reorganization":  with respect to any  Multiemployer  Plan,  the condition that
such plan is in reorganization within the meaning of Section 4241 of ERISA.

"Reportable  Event":  any of the events  set forth in Section  4043(c) of ERISA,
other than those events as to which the thirty day notice period is waived under
subsection .13, .14, .16, .18, .19 or .20 of PBGC Reg. ' 2615.

"Required  Lenders":  at any date shall mean the holders of more than 50% of the
Commitments,  or,  if  the  Commitments  have  been  terminated,  the  Aggregate
Outstanding Extensions of Credit of the Lenders.

"Requirement  of Law": as to any Person,  the Certificate of  Incorporation  and
By-Laws or other  organizational or governing  documents of such Person, and any
law, treaty,  rule or regulation or determination of an arbitrator or a court or
other  Governmental  Authority,  in each case applicable to or binding upon such
Person or any of its  property or to which such Person or any of its property is
subject.

"Responsible Officer": the chief executive officer, president or chief financial
officer of the Borrower,  but in any event,  with respect to financial  matters,
the chief financial officer of the Borrower.

"Security  Documents":  the collective reference to each Mortgage,  each Oil and
Gas  Mortgage,  the Master  Guarantee  and  Collateral  Agreement  and all other
security documents  hereafter  delivered to the Collateral Agent granting a Lien
on any asset or assets of any Person to secure the  obligations  and liabilities
of the Borrower  hereunder  and/or  under any of the other Loan  Documents or to
secure any guarantee of any such obligations and liabilities.

"Seller  Indebtedness":  Indebtedness  of the  Borrower  which is  issued to the
seller in a Permitted  Acquisition as all or a portion of the  consideration for
such Permitted Acquisition.

"Servicios": Servicios WellTech, S.A., an Argentine corporation.

"Significant Disposition": as defined in Section 7.6(d).

"Single  Employer  Plan":  any Plan which is  covered by Title IV of ERISA,  but
which is not a Multiemployer Plan.

"Solvent":  when used with respect to any Person,  means that, as of any date of
determination, (a) the amount of the "present fair saleable value" of the assets
of such Person will, as of such date,  exceed the amount of all  "liabilities of
such Person, contingent or otherwise", as of such date, as such quoted terms are
determined  in  accordance  with  applicable  federal  and state laws  governing
determinations of the insolvency of debtors, (b) the present fair saleable value
of the assets of such Person will,  as of such date,  be greater than the amount
that will be required to pay the  liability  of such Person on its debts as such
debts become  absolute and  matured,  (c) such Person will not have,  as of such
date,  an  unreasonably  small  amount of  capital  with  which to  conduct  its
business,  and (d) such Person will be able to pay its debts as they mature. For
purposes of this definition,  (i) "debt" means liability on a "claim",  and (ii)
"claim"  means any (x) right to payment,  whether or not such a right is reduced
to judgment, liquidated,  unliquidated,  fixed, contingent,  matured, unmatured,
disputed,  undisputed, legal, equitable, secured or unsecured or (y) right to an
equitable  remedy for breach of performance if such breach gives rise to a right
to  payment,  whether  or not such  right to an  equitable  remedy is reduced to
judgment, fixed, contingent, matured or unmatured, disputed, undisputed, secured
or unsecured.

"S&P": Standard & Poor's Ratings Group.

"Standby Letter of Credit": as defined in Section 3.1(a).

"Subordinated  Indebtedness":  the Convertible Subordinated Debentures, the 1997
Convertible  Subordinated  Notes  and any  other  Indebtedness  of the  Borrower
subordinated  to the prior  payment in full of the  Obligations  to at least the
extent  the  1997  Convertible   Subordinated  Notes  are  subordinated  to  the
Obligations  or otherwise  in a manner  acceptable  to the  Required  Lenders as
evidenced by their written approval.

"Subsidiary":  as to any Person,  a corporation,  partnership or other entity of
which shares of stock or other ownership  interests having ordinary voting power
(other than stock or such other  ownership  interests  having such power only by
reason of the  happening of a  contingency)  to elect a majority of the board of
directors or other managers of such corporation, partnership or other entity are
at the time owned, or the management of which is otherwise controlled,  directly
or  indirectly  through one or more  intermediaries,  or both,  by such  Person.
Unless   otherwise   qualified,   all  references  to  a   "Subsidiary"   or  to
"Subsidiaries"  in this Agreement shall refer to a Subsidiary or Subsidiaries of
the Borrower, but such references shall not include any Excluded Subsidiary.

"Subsidiary Guarantor":  each Subsidiary of the Borrower which is a party to the
Master Guarantee and Collateral Agreement.

"Termination Date": November 6, 2002.

"Transferee": as defined in Section 10.6(g).

"Type": as to any Loan, its nature as a Base Rate Loan or a Eurodollar Loan.

"Uniform  Customs":  the Uniform  Customs and Practice for  Documentary  Credits
(1993 Revision),  International  Chamber of Commerce Publication No. 500, as the
same may be amended from time to time.

"United States": the United States of America.

"Vehicles": as defined in the Master Guarantee and Collateral Agreement.

"Wholly Owned Subsidiary": as to any Person, any other Person all of the Capital
Stock of which is owned by such Person  directly  and/or  through  other  Wholly
Owned Subsidiaries.

1.2 Other Definitional  Provisions.  (a) Unless otherwise specified therein, all
terms defined in this Agreement shall have the defined meanings when used in the
other Loan  Documents or any  certificate  or other  document  made or delivered
pursuant hereto or thereto.

(b) As used herein and in the other Loan Documents, and any certificate or other
document made or delivered pursuant hereto or thereto, accounting terms relating
to the Borrower and its  Subsidiaries  not defined in Section 1.1 and accounting
terms partly  defined in Section 1.1, to the extent not defined,  shall have the
respective meanings given to them under GAAP.

(c) The words  "hereof",  "herein" and  "hereunder"  and words of similar import
when used in this Agreement  shall refer to this Agreement as a whole and not to
any particular  provision of this Agreement,  and Section,  Schedule and Exhibit
references are to this Agreement unless otherwise specified.

(d) The meanings  given to terms defined  herein shall be equally  applicable to
both the singular and plural forms of such terms.



                   SECTION 2. AMOUNT AND TERMS OF COMMITMENTS

2.1  Commitments.  (a) Subject to the terms and conditions  hereof,  each Lender
severally  agrees to make revolving  credit loans ("Loans") to the Borrower from
time to time during the Commitment  Period in an aggregate  principal  amount at
any one time outstanding  which,  when added to such Lender's  Percentage of the
L/C Obligations  then  outstanding,  does not exceed the amount of such Lender's
Commitment.  During the Commitment  Period, the Borrower may use the Commitments
by borrowing,  prepaying the Loans in whole or in part, and reborrowing,  all in
accordance  with the terms and  conditions  hereof.  On the  Closing  Date,  all
Existing  Revolving  Credit  Loans  outstanding  on the  Closing  Date  shall be
continued (without payment thereof) as Loans hereunder.

(b) The  Loans  may from time to time be (i)  Eurodollar  Loans,  (ii) Base Rate
Loans or (iii) a combination thereof, as determined by the Borrower and notified
to the  Administrative  Agent in accordance with Sections 2.3 and 2.8,  provided
that no Loan shall be made as a Eurodollar  Loan after the day that is one month
prior to the Termination Date.

(c) The  Commitments  shall be reduced (and each  Lender's  Commitment  shall be
ratably  reduced) on each  anniversary of the Closing Date,  commencing with the
third such anniversary, to the amount set forth opposite such anniversary below:

                           Anniversary                 Amount

                           Third                       $175,000,000
                           Fourth                      $125,000,000
                           Fifth                       $       0

2.2  Procedure  for  Borrowing.  The Borrower  may borrow under the  Commitments
during the  Commitment  Period on any Business  Day,  provided that the Borrower
shall give the  Administrative  Agent  irrevocable  notice (which notice must be
received by the  Administrative  Agent prior to 12:00 Noon,  New York City time,
(a) three  Business  Days prior to the requested  Borrowing  Date, if all or any
part of the requested  Loans are to be Eurodollar  Loans or (b) one Business Day
prior to the requested Borrowing Date, otherwise),  specifying (i) the amount to
be borrowed,  (ii) the requested  Borrowing Date, (iii) whether the borrowing is
to be of Eurodollar Loans, Base Rate Loans, or a combination thereof and (iv) if
the borrowing is to be entirely or partly of Eurodollar  Loans,  the  respective
amounts  of each such Type of Loan and the  respective  lengths  of the  initial
Interest Periods  therefor.  Each borrowing under the Commitments shall be in an
amount  equal  to (x) in the  case of Base  Rate  Loans,  $1,000,000  or a whole
multiple  thereof  (or,  if  the  then  Available   Commitments  are  less  than
$1,000,000,  such  lesser  amount)  and  (y) in the  case of  Eurodollar  Loans,
$5,000,000 or a whole multiple of $1,000,000 in excess thereof.  Upon receipt of
any such notice  from the  Borrower,  the  Administrative  Agent shall  promptly
notify  each  Lender  thereof.  Each Lender will make the amount of its pro rata
share of each borrowing available to the Administrative Agent for the account of
the Borrower at the office of the Administrative Agent specified in Section 10.2
prior to 11:00 A.M.,  New York City time, on the Borrowing Date requested by the
Borrower  in  funds  immediately  available  to the  Administrative  Agent.  The
aggregate  of the amounts  made  available  to the  Administrative  Agent by the
Lenders will then be made available to the Borrower by the Administrative  Agent
in accordance with the instructions of the Borrower in like funds as received by
the Administrative Agent.

2.3 Commitment  Fees, etc. (a) The Borrower agrees to pay to the  Administrative
Agent for the  account of each Lender a  commitment  fee for the period from and
including the Closing Date to the last day of the Commitment Period, computed at
the rate per annum set forth under the heading  "Commitment Fee Rate" on Annex I
on the average  daily amount of the  Available  Commitment of such Lender during
the period for which payment is made,  payable  quarterly in arrears on the last
day of each  March,  June,  September  and  December  and on the last day of the
Commitment Period, commencing on the first of such dates to occur after the date
hereof.

(b) The Borrower agrees to pay to the Administrative  Agent and the Arranger the
fees in the amounts and on the dates  agreed to in writing  from time to time by
the Borrower, the Administrative Agent and the Arranger.

(c) The Borrower  agrees to pay to the  Collateral  Agent the fees in the amount
and on the dates  agreed to in writing from time to time by the Borrower and the
Collateral Agent.

2.4   Repayment  of  Loans;   Evidence  of  Debt.   (a)  The   Borrower   hereby
unconditionally  promises to pay to the Administrative  Agent for the account of
the  appropriate  Lender the then unpaid  principal  amount of each Loan of such
Lender on the last day of the  Commitment  Period (or such earlier date on which
the Loans  become due and payable  pursuant to Section 8). The  Borrower  hereby
further agrees to pay interest on the unpaid  principal amount of the Loans from
time to time  outstanding  from the date hereof until payment in full thereof at
the rates per annum, and on the dates, set forth in Section 2.10.

(b) Each Lender shall maintain in accordance  with its usual practice an account
or accounts  evidencing  indebtedness  of the Borrower to such Lender  resulting
from each  Loan of such  Lender  from time to time,  including  the  amounts  of
principal  and interest  payable and paid to such Lender from time to time under
this Agreement.

(c) The  Administrative  Agent,  on behalf of the Borrower,  shall  maintain the
Register  pursuant to Section 10.6(e) and a subaccount  therein for each Lender,
in which shall be recorded (i) the amount of each Loan made hereunder,  the Type
thereof and each  Interest  Period  applicable  thereto,  (ii) the amount of any
principal  or interest  due and  payable or to become due and  payable  from the
Borrower to each Lender  hereunder and (iii) both the amount of any sum received
by the Administrative  Agent hereunder from the Borrower and each Lender's share
thereof.

(d) The entries made in the Register and the accounts of each Lender  maintained
pursuant to Section 2.4(b) shall, to the extent  permitted by applicable law, be
prima facie  evidence of the  existence  and amounts of the  obligations  of the
Borrower therein recorded;  provided, however, that the failure of any Lender or
the  Administrative  Agent to maintain the Register or any such account,  or any
error therein,  shall not in any manner affect the obligation of the Borrower to
repay (with applicable  interest) the Loans made to such Borrower by such Lender
in accordance with the terms of this Agreement.

(e) The Borrower  agrees that, upon the request to the  Administrative  Agent by
any Lender,  the  Borrower  will execute and deliver to such Lender a promissory
note of the Borrower  evidencing any Loans of such Lender,  substantially in the
form of Exhibit C with appropriate insertions as to date and principal amount (a
"Note").  A Note  and  the  obligation  evidenced  thereby  may be  assigned  or
otherwise  transferred  in  whole  or in  part  only  by  registration  of  such
assignment or transfer of such Note and the obligation  evidenced thereby in the
Register (and each Note shall expressly so provide).  Any assignment or transfer
of all or part of an  obligation  evidenced by a Note shall be registered in the
Register only upon surrender for  registration  of assignment or transfer of the
Note  evidencing  such  obligation,  accompanied by an Assignment and Acceptance
substantially  in the form of Exhibit G duly  executed by the Assignor  thereof,
and thereupon one or more new Notes shall be issued to the  designated  Assignee
and the old Note shall be returned by the  Administrative  Agent to the Borrower
marked "cancelled". No assignment of a Note and the obligation evidenced thereby
shall be  effective  unless it shall have been  recorded in the  Register by the
Administrative Agent as provided in this Section 2.4(e).

2.5 Optional  Termination or Reduction of  Commitments.  The Borrower shall have
the right, upon not less than three Business Days' notice to the  Administrative
Agent,  to terminate the Commitments or, from time to time, to reduce the amount
of  the  Commitments;   provided  that  no  such  termination  or  reduction  of
Commitments  shall be  permitted  if,  after  giving  effect  thereto and to any
prepayments  of the Loans made on the  effective  date  thereof,  the sum of the
Aggregate  Outstanding  Extensions  of Credit of all  Lenders  would  exceed the
Commitments  then in effect.  Any such reduction  shall be in an amount equal to
$1,000,000,  or a whole  multiple  thereof,  and shall  reduce  permanently  the
Commitments then in effect.

2.6  Optional  Prepayments.  The  Borrower may at any time and from time to time
prepay the Loans, in whole or in part, without premium or penalty, upon at least
three  Business  Days'  irrevocable  notice to the  Administrative  Agent by the
Borrower,  specifying  the  date  and  amount  of  prepayment  and  whether  the
prepayment is of  Eurodollar  Loans,  Base Rate Loans or a combination  thereof,
and, if of a combination thereof, the amount allocable to each, provided that if
a Eurodollar  Loan is prepaid on any day other than the last day of the Interest
Period applicable thereto the Borrower shall also pay any amounts owing pursuant
to Section 2.17. Upon receipt of any such notice, the Administrative Agent shall
promptly  notify each Lender  thereof.  If any such notice is given,  the amount
specified in such notice shall be due and payable on the date specified therein,
together  with  accrued  interest  to such date on the amount  prepaid.  Partial
prepayments of Loans shall be in an aggregate  principal amount of $1,000,000 or
a whole multiple thereof.

2.7  Mandatory  Prepayments  and  Commitment  Reductions.  (a) If any  senior or
subordinated  debt  securities  or  instruments  of the  Borrower  or any of its
Subsidiaries shall be issued or sold, or the Borrower or any of its Subsidiaries
shall incur any Indebtedness, after the Closing Date (except any debt securities
or instruments issued or sold or Indebtedness incurred pursuant to Section 7.2),
an amount equal to 100% of the Net Cash Proceeds thereof shall be applied on the
date of such issuance, sale or incurrence toward the prepayment of the Loans and
the reduction of the  Commitments  as set forth in paragraph (d) of this Section
2.7.  Nothing in this  paragraph (a) shall be deemed to permit the incurrence of
Indebtedness not permitted by Section 7.2.

(b) If any Capital  Stock of the  Borrower or any of its  Subsidiaries  shall be
issued or sold after the Closing Date (except any Capital Stock issued as a part
of the  consideration  of and in connection  with a Permitted  Acquisition),  an
amount  equal to 75% of the Net Cash  Proceeds  thereof  shall be applied on the
date of such issuance or sale toward the prepayment of the Loans as set forth in
paragraph (d) of this Section 2.7.

(c) If the Borrower or any of its  Subsidiaries  shall receive Net Cash Proceeds
from the Significant  Disposition permitted under Section 7.6(e), 75% of the Net
Cash  Proceeds  thereof  shall be applied on the date such Net Cash Proceeds are
received toward the prepayment of the Loans and the reduction of the Commitments
as set forth in paragraph (d) of this Section 2.7.

(d) Amounts to be applied in connection with prepayments of Loans and Commitment
reductions  made  pursuant  to this  Section  2.7 shall be applied to prepay the
Loans  and  reduce  permanently  the  Commitments,  pro  rata  according  to the
outstanding amounts of Commitments.  Any such reduction of the Commitments shall
be accompanied by prepayment of the Loans to the extent, if any, that the sum of
the Aggregate Outstanding Extensions of Credit of all Lenders exceeds the amount
of the  aggregate  Commitments  as so reduced,  provided  that if the  aggregate
principal  amount of Loans  then  outstanding  is less  than the  amount of such
excess  (because L/C  Obligations  constitute a portion  thereof),  the Borrower
shall, to the extent of the balance of such excess,  replace outstanding Letters
of  Credit  and/or  deposit  an  amount  in  cash in a cash  collateral  account
established  with the  Administrative  Agent for the  benefit of the  Lenders on
terms and  conditions  satisfactory  to the  Administrative  Agent.  Amounts  on
deposit in the cash  collateral  account  shall be  invested  as directed by the
Borrower  subject to the approval of the  Administrative  Agent,  which approval
shall not be unreasonably  withheld.  The application of any prepayment pursuant
to this  Section  2.7  shall be made  first to Base  Rate  Loans  and  second to
Eurodollar  Loans,  provided that at the request of the Borrower the application
of any  prepayment  to any  Eurodollar  Loan may be delayed  until the end of an
Interest Period (or Interest  Periods) so that such  application does not result
in the  incurrence by any Lender of any loss or expense under Section 2.17,  and
during  such  delay,  the  Administrative  Agent  shall  hold the amount of such
prepayment in a cash collateral account. Each prepayment of the Loans under this
Section  2.7  shall  be  accompanied  by  accrued  interest  to the date of such
prepayment on the amount prepaid.

2.8 Conversion and Continuation Options. (a) The Borrower may elect from time to
time to convert Eurodollar Loans to Base Rate Loans by giving the Administrative
Agent at least two Business  Days' prior  irrevocable  notice of such  election,
provided that any such  conversion  of Eurodollar  Loans may only be made on the
last day of an Interest Period with respect thereto. The Borrower may elect from
time to time to  convert  Base Rate  Loans to  Eurodollar  Loans by  giving  the
Administrative  Agent at least three Business Days' prior irrevocable  notice of
such election.  Any such notice of conversion to Eurodollar  Loans shall specify
the length of the initial  Interest  Period  therefor.  Upon receipt of any such
notice, the Administrative  Agent shall promptly notify each Lender thereof. All
or any part of outstanding Eurodollar Loans and Base Rate Loans may be converted
as provided herein, provided that (i) no Loan may be converted into a Eurodollar
Loan (A) when any  Event of  Default  has  occurred  and is  continuing  and the
Administrative Agent has or the Required Lenders have determined in its or their
sole discretion not to permit such a conversion or (B) having an Interest Period
in excess of one month  prior to the date  which is the  earlier of (y) 120 days
after  the  Closing  Date or (z) the date the  initial  syndication  of Loans is
completed by the  Arranger  and (ii) no Loan may be converted  into a Eurodollar
Loan after the date that is one month prior to the Termination Date.

(b) Any  Eurodollar  Loans may be continued as such upon the  expiration  of the
then  current  Interest  Period  with  respect  thereto by the  Borrower  giving
irrevocable  notice  to  the  Administrative   Agent,  in  accordance  with  the
applicable provisions of the term "Interest Period" set forth in Section 1.1, of
the length of the next Interest Period to be applicable to such Loans,  provided
that no  Eurodollar  Loan may be continued as such (i) when any Event of Default
has occurred and is continuing and the Administrative  Agent has or the Required
Lenders have  determined  in its or their sole  discretion  not to permit such a
continuation  or (ii) after the date that is one month prior to the  Termination
Date,  and  provided,  further,  that if the  Borrower  shall  fail to give  any
required notice as described above in this paragraph or if such  continuation is
not  permitted   pursuant  to  the   preceding   proviso  such  Loans  shall  be
automatically converted to Base Rate Loans on the last day of such then expiring
Interest Period.

2.9 Minimum Amounts and Maximum Number of Eurodollar  Tranches.  Notwithstanding
anything  to the  contrary  in  this  Agreement,  all  borrowings,  conversions,
continuations and optional  prepayments of Loans hereunder and all selections of
Interest Periods hereunder shall be in such amounts and be made pursuant to such
elections so that,  (a) after giving effect  thereto,  the  aggregate  principal
amount  of the  Loans  comprising  each  Eurodollar  Tranche  shall  be equal to
$5,000,000 or a whole  multiple of $1,000,000 in excess  thereof and (b) no more
than eight  Eurodollar  Tranches in respect of all Loans shall be outstanding at
any one.

2.10  Interest  Rates and Payment  Dates.  (a) Each  Eurodollar  Loan shall bear
interest for each day during each Interest Period with respect thereto at a rate
per  annum  equal  to the  Eurodollar  Rate  determined  for  such  day plus the
Applicable Margin.

(b) Each Base Rate Loan shall  bear  interest  at a rate per annum  equal to the
Base Rate plus the Applicable Margin.

(c)  If  all or a  portion  of  any  principal  of  any  Loan  or  Reimbursement
Obligations  shall not be paid when due  (whether  at the  stated  maturity,  by
acceleration  or  otherwise),  such amounts  shall bear interest at 2% above the
rate otherwise  applicable  thereto from the date of such non-payment until such
overdue principal is paid in full (as well after as before judgment).  If all or
a portion  of any  interest  shall not be paid when due  (whether  at the stated
maturity, by acceleration or otherwise),  such amounts shall bear interest at 2%
above the rate otherwise applicable to the Loans or Reimbursement Obligations on
which such interest accrued from the date of such non-payment until such overdue
principal  is paid in full  (as  well  after as  before  judgment).  If all or a
portion of any commitment fee or any other amount payable hereunder shall not be
paid when due (whether at the stated  maturity,  by  acceleration or otherwise),
such amounts shall bear interest at a rate which is 2% above the rate applicable
to Base Rate Loans,  in each case from the date of such  non-payment  until such
overdue  commitment fee or other amount is paid in full (as well after as before
judgment).

(d) Interest shall be payable in arrears on each Interest Payment Date, provided
that interest  accruing  pursuant to paragraph (c) of this Section 2.10 shall be
payable from time to time on demand.

2.11  Computation of Interest and Fees. (a) Interest on Loans and  Reimbursement
Obligations,  commitment  fees,  letter of credit  commissions  and  interest on
overdue  interest,  commitment fees and other amounts payable hereunder shall be
calculated  on the basis of a 360-day year for the actual days  elapsed,  except
that,  with  respect  to Base  Rate  Loans  the  rate of  interest  on  which is
calculated  on the  basis of the  Prime  Rate,  the  interest  thereon  shall be
calculated on the basis of a 365- (or 366-, as the case may be) day year for the
actual days  elapsed.  The  Administrative  Agent  shall as soon as  practicable
notify the Borrower and the Lenders of each  determination of a Eurodollar Rate.
Any change in the interest  rate on a Loan  resulting  from a change in the Base
Rate or the Eurocurrency  Reserve  Requirements shall become effective as of the
opening of  business  on the day on which such  change  becomes  effective.  The
Administrative  Agent shall as soon as  practicable  notify the Borrower and the
Lenders of the  effective  date and the amount of each such  change in  interest
rate.

(b) Each determination of an interest rate by the Administrative  Agent pursuant
to any  provision  of this  Agreement  shall be  conclusive  and  binding on the
Borrower and the Lenders in the absence of manifest error.

2.12  Inability to  Determine  Interest  Rate.  If prior to the first day of any
Interest Period:

(a) the Administrative Agent shall have determined (which determination shall be
conclusive  and binding  upon the  Borrower)  that,  by reason of  circumstances
affecting the relevant  market,  adequate and reasonable  means do not exist for
ascertaining the Eurodollar Rate for such Interest Period, or

(b) the  Administrative  Agent  shall have  received  notice  from the  Required
Lenders  that  the  Eurodollar  Rate  determined  or to be  determined  for such
Interest  Period will not adequately and fairly reflect the cost to such Lenders
(as  conclusively  certified  by such  Lenders) of making or  maintaining  their
affected Loans during such Interest Period,

the Administrative Agent shall give telecopy or telephonic notice thereof to the
Borrower and the Lenders as soon as  practicable  thereafter.  If such notice is
given (x) any  Eurodollar  Loans  requested  to be made on the first day of such
Interest  Period  shall be made as Base Rate Loans,  (y) any  Loans that were to
have been converted on the first day of such Interest Period to Eurodollar Loans
shall be continued as Base Rate Loans and (z) any outstanding  Eurodollar  Loans
that were to be continued on the first day of such Interest Period as Eurodollar
Loans shall be converted, on the first day of such Interest Period, to Base Rate
Loans.  Until such notice has been  withdrawn by the  Administrative  Agent,  no
further  Eurodollar  Loans  shall be made or  continued  as such,  nor shall the
Borrower have the right to convert Loans to Eurodollar Loans.

2.13 Pro Rata  Treatment and Payments.  (a) Each  borrowing by the Borrower from
the Lenders hereunder, each payment by the Borrower on account of any commitment
fee and any reduction of the  Commitments  of the Lenders shall be made pro rata
according  to the  respective  Percentages,  as the case may be, of the relevant
Lenders.  Each payment (including each prepayment) by the Borrower on account of
principal of and  interest on the Loans shall be made pro rata  according to the
respective  outstanding principal amounts of the Loans then held by the Lenders.
Each payment made at any time when any amount hereunder is due and payable shall
be made pro rata according to the respective amounts then due and payable to the
Lenders.  All  payments  (including  prepayments)  to be  made  by the  Borrower
hereunder and under the Notes, whether on account of principal,  interest,  fees
or otherwise,  shall be made without  setoff or  counterclaim  and shall be made
prior to 12:00  Noon,  New  York  City  time,  on the due  date  thereof  to the
Administrative  Agent,  for the account of the  Lenders,  at the  Administrative
Agent's  office  specified  in  Section  10.2,  in  Dollars  and in  immediately
available funds.  Payments received by the Administrative  Agent after such time
shall  be  deemed  to  have  been   received  on  the  next  Business  Day.  The
Administrative Agent shall distribute such payments to the Lenders promptly upon
receipt in like funds as received. If any payment hereunder (other than payments
on the Eurodollar  Loans) becomes due and payable on a day other than a Business
Day, such payment shall be extended to the next succeeding  Business Day. If any
payment  on a  Eurodollar  Loan  becomes  due and  payable on a day other than a
Business  Day, the  maturity  thereof  shall be extended to the next  succeeding
Business Day unless the result of such extension would be to extend such payment
into another  calendar  month,  in which event such payment shall be made on the
immediately  preceding Business Day. In the case of any extension of any payment
of principal pursuant to the preceding two sentences,  interest thereon shall be
payable at the then applicable rate during such extension.

(b) Unless the  Administrative  Agent shall have been notified in writing by any
Lender prior to a borrowing that such Lender will not make the amount that would
constitute its share of such borrowing  available to the  Administrative  Agent,
the  Administrative  Agent may assume  that such  Lender is making  such  amount
available to the  Administrative  Agent,  and the  Administrative  Agent may, in
reliance upon such  assumption,  make available to the Borrower a  corresponding
amount. If such amount is not made available to the Administrative  Agent by the
required  time on the  Borrowing  Date  therefor,  such Lender  shall pay to the
Administrative  Agent,  on demand,  such amount with interest  thereon at a rate
equal to the daily  average  Federal Funds  Effective  Rate for the period until
such Lender makes such amount immediately available to the Administrative Agent.
A certificate of the  Administrative  Agent submitted to any Lender with respect
to any amounts  owing under this  Section  2.13(b)  shall be  conclusive  in the
absence of manifest  error. If such Lender's share of such borrowing is not made
available to the Administrative  Agent by such Lender within three Business Days
of such  Borrowing  Date,  the  Administrative  Agent  shall also be entitled to
recover such amount with  interest  thereon at the rate per annum  applicable to
Base Rate Loans  hereunder,  on demand,  from the  Borrower  (together  with any
amounts due under  Section 2.17,  calculated as if such Lender's failure to fund
such amount were a failure of the  Borrower to borrow such amount  after  having
given  notice of such  borrowing).  Nothing  herein shall be deemed to limit the
rights of the Borrower against any defaulting Lender.

(c) Unless the  Administrative  Agent shall have been notified in writing by the
Borrower prior to the date of any payment being made hereunder that the Borrower
will not make such payment to the Administrative Agent, the Administrative Agent
may assume  that the  Borrower is making such  payment,  and the  Administrative
Agent may, but shall not be required to, in reliance upon such assumption,  make
available to the Lenders  their  respective  pro rata shares of a  corresponding
amount. If such payment is not made to the Administrative  Agent by the Borrower
within three Business Days of such required date, the Administrative Agent shall
be entitled to recover,  on demand,  from each Lender to which any amount  which
was made available pursuant to the preceding sentence, such amount with interest
thereon at the rate per annum equal to the daily average Federal Funds Effective
Rate.  Nothing herein shall be deemed to limit the rights of the  Administrative
Agent or any Lender against the Borrower.

2.14 Illegality.  Notwithstanding any other provision herein, if the adoption of
or any change in any Requirement of Law or in the  interpretation or application
thereof  shall make it unlawful  for any Lender to make or  maintain  Eurodollar
Loans as  contemplated  by this  Agreement,  (a) the  commitment  of such Lender
hereunder  to make  Eurodollar  Loans,  continue  Eurodollar  Loans  as such and
convert Base Rate Loans to Eurodollar Loans shall forthwith be suspended and (b)
such Lender's  Loans then  outstanding  as Eurodollar  Loans,  if any,  shall be
converted  automatically  to Base Rate Loans on the respective  last days of the
then current  Interest Periods with respect to such Loans or within such earlier
period as required by law. If any such conversion of a Eurodollar Loan occurs on
a day which is not the last day of the then current Interest Period with respect
thereto,  the Borrower shall pay to such Lender such amounts,  if any, as may be
required pursuant to Section 2.17.

2.15  Requirements  of Law.  (a) If after the date hereof the adoption of or any
change in any Requirement of Law or in the interpretation or application thereof
or compliance by any Lender with any request or directive (whether or not having
the force of law) from any central  bank or other  Governmental  Authority  made
subsequent to the date hereof:

(i) shall subject any Lender to any tax of any kind  whatsoever  with respect to
this  Agreement,  any  Note,  any  Letter  of  Credit,  any  Application  or any
Eurodollar  Loan made by it, or change the basis of taxation of payments to such
Lender in respect  thereof (except for taxes covered by Section 2.16 and changes
in the rate of tax (whether characterized as income,  franchise or other tax) on
the overall net income of such Lender);

(ii) shall  impose,  modify or hold  applicable  any reserve,  special  deposit,
compulsory loan or similar requirement against assets held by, deposits or other
liabilities  in or for the account of,  advances,  loans or other  extensions of
credit by, or any other acquisition of funds by, any office of such Lender which
is not otherwise included in the determination of the Eurodollar Rate hereunder;
or

(iii) shall impose on such Lender any other condition;

and the result of any of the  foregoing  is to increase the cost to such Lender,
by an amount which such Lender deems to be material, of making, converting into,
continuing  or  maintaining  Eurodollar  Loans or  issuing or  participating  in
Letters of  Credit,  or to reduce any  amount  receivable  hereunder  in respect
thereof,  then, in any such case,  the Borrower  shall promptly pay such Lender,
upon its demand,  any additional  amounts necessary to compensate such Lender on
an after-tax basis for such increased cost or reduced amount receivable.  If any
Lender becomes entitled to claim any additional amounts pursuant to this Section
2.15, it shall promptly  notify the Borrower (with a copy to the  Administrative
Agent) of the event by reason of which it has become so entitled.

(b) If any Lender  shall have  determined  that the adoption of or any change in
any Requirement of Law regarding  capital adequacy or in the  interpretation  or
application thereof or compliance by such Lender or any corporation  controlling
such Lender with any request or directive regarding capital adequacy (whether or
not having the force of law) from any Governmental  Authority made subsequent to
the date  hereof  shall have the effect of  reducing  the rate of return on such
Lender's  or such  corporation's  capital as a  consequence  of its  obligations
hereunder  or under or in respect of any Letter of Credit to a level  below that
which such Lender or such corporation could have achieved but for such adoption,
change  or  compliance   (taking  into   consideration  such  Lender's  or  such
corporation's  policies with respect to capital adequacy) by an amount deemed by
such Lender to be material,  then from time to time,  after  submission  by such
Lender to the Borrower  (with a copy to the  Administrative  Agent) of a written
request  therefor,  the Borrower shall pay to such Lender such additional amount
or  amounts  as will  compensate  such  Lender  on an  after-tax  basis for such
reduction.

(c) If any Lender becomes  entitled to claim any additional  amounts pursuant to
this  subsection,  it shall  promptly  notify the  Borrower  (with a copy to the
Administrative Agent) of the event by reason of which it has become so entitled.
A certificate  as to any  additional  amounts  payable  pursuant to this Section
2.15,  together  with a  calculation  thereof  in  reasonable  detail,  shall be
submitted  by  the  affected  Lender  to  the  Borrower  (with  a  copy  to  the
Administrative Agent) and such certificate shall be conclusive in the absence of
manifest error.  The  obligations of the Borrower  pursuant to this Section 2.15
shall survive the termination of this Agreement and the payment of the Notes and
all other amounts payable hereunder.

2.16 Taxes.  (a) All payments made by the Borrower  under this Agreement and the
Notes shall be made free and clear of, and without  deduction or withholding for
or on account of, any present or future  income,  stamp or other taxes,  levies,
imposts,  duties,  charges,  fees, deductions or withholdings,  now or hereafter
imposed, levied, collected,  withheld or assessed by any Governmental Authority,
excluding  net income taxes and franchise  taxes  (imposed in lieu of net income
taxes)  imposed  on the  Administrative  Agent or any  Lender  as a result  of a
present or former connection between the Administrative Agent or such Lender and
the  jurisdiction  of  the  Governmental  Authority  imposing  such  tax  or any
political  subdivision  or taxing  authority  thereof or therein (other than any
such  connection  arising  solely from the  Administrative  Agent or such Lender
having  executed,  delivered or performed its  obligations or received a payment
under,  or enforced,  this  Agreement or any other Loan  Document).  If any such
non-excluded  taxes,  levies,  imposts,  duties,  charges,  fees,  deductions or
withholdings ("Non-Excluded Taxes") are required to be withheld from any amounts
payable to the Administrative  Agent or any Lender hereunder or under the Notes,
the  amounts so  payable to the  Administrative  Agent or such  Lender  shall be
increased to the extent necessary to yield to the  Administrative  Agent or such
Lender  (after  payment of all  Non-Excluded  Taxes)  interest or any such other
amounts  payable  hereunder  at the rates or in the  amounts  specified  in this
Agreement  and the  Notes,  provided,  however,  that the  Borrower  shall  make
payments  net of and after  deduction  for  Non-Excluded  Taxes and shall not be
required to increase any such amounts payable to any Non-U.S. Lender (as defined
below) that fails to comply with  Section  2.16(b).  Whenever  any  Non-Excluded
Taxes are  payable by the  Borrower,  as promptly  as  possible  thereafter  the
Borrower shall send to the  Administrative  Agent for its own account or for the
account of such  Lender,  as the case may be, a  certified  copy of an  original
official  receipt  received by the  Borrower  showing  payment  thereof.  If the
Borrower fails to pay any Non-Excluded  Taxes when due to the appropriate taxing
authority or fails to remit to the Administrative Agent the required receipts or
other  required   documentary   evidence,   the  Borrower  shall  indemnify  the
Administrative  Agent and the Lenders for any  Non-Excluded  Taxes,  incremental
taxes, interest or penalties that may become payable by the Administrative Agent
or any Lender as a result of any such  failure.  The  agreements in this Section
2.16 shall  survive the  termination  of this  Agreement  and the payment of the
Notes and all other amounts payable hereunder.

(b) Each Lender (or Transferee) that is not a corporation or partnership created
or  organized  in or under the laws of the United  States,  any  estate  that is
subject to federal income taxation regardless of the source of its income or any
trust which is subject to the  supervision  of a court within the United  States
and the control of a United States fiduciary as described in section 7701(a)(30)
of the  Code  (a  "Non-U.S.  Lender")  shall  deliver  to the  Borrower  and the
Administrative Agent (or, in the case of a Participant, to the Lender from which
the related  participation  shall have been  purchased) on or before the date on
which it becomes a party to this Agreement (or, in the case of a Participant, on
or  before  the  date  on  which  such   Participant   purchases   the   related
participation) either:

(A) (x) two duly completed and signed copies of either Internal  Revenue Service
Form 1001  (relating  to such  Non-U.S.  Lender and  entitling  it to a complete
exemption  from  withholding of U.S. Taxes on all amounts to be received by such
Non-U.S. Lender pursuant to this Agreement and the other Loan Documents) or Form
4224 (relating to all amounts to be received by such Non-U.S. Lender pursuant to
this  Agreement  and  the  other  Loan  Documents),  or  successor  and  related
applicable  forms,  as the case may be,  and (y) two duly  completed  and signed
copies of Internal  Revenue  Service Form W-8 or W-9, or  successor  and related
applicable forms, as the case may be; or

(B) in the case of a Non-U.S.  Lender that is not a "bank" within the meaning of
Section  881(c)(3)(A) of the Code and that does not comply with the requirements
of clause (A) hereof,  (x) a  statement  in the form of Exhibit F (or such other
form of  statement  as shall be  reasonably  requested  by the  Borrower  or the
Administrative Agent from time to time) to the effect that such Non-U.S.  Lender
is eligible for a complete  exemption from  withholding of U.S. Taxes under Code
Section  871(h) or  881(c),  and (y) two duly  completed  and  signed  copies of
Internal Revenue Service Form W-8 or successor and related applicable form.

Further,  each  Non-U.S.  Lender  agrees  to  deliver  to the  Borrower  and the
Administrative  Agent, and if applicable,  the assigning Lender (or, in the case
of a Participant,  to the Lender from which the related participation shall have
been purchased) two further duly completed and signed copies of such Forms 1001,
4224, W-8 or W-9, as the case may be, or successor and related applicable forms,
on or  before  the date that any such  form  expires  or  becomes  obsolete  and
promptly  after the  occurrence  of any event  requiring  a change from the most
recent form(s) previously  delivered by it to the Borrower or the Administrative
Agent (or,  in the case of a  Participant,  to the Lender from which the related
participation  shall have been purchased) in accordance  with applicable  United
States  laws and  regulations;  unless,  in any such case,  any change in law or
regulation  has occurred  subsequent  to the date such Lender  became a party to
this  Agreement  (or in the  case  of a  Participant,  the  date on  which  such
Participant  purchased the related  participation)  which renders all such forms
inapplicable or which would prevent such Lender (or  Participant)  from properly
completing  and  executing  any such form  with  respect  to it and such  Lender
promptly notifies the Borrower and the Administrative  Agent (or, in the case of
a Participant,  the Lender from which the related  participation shall have been
purchased) if it is no longer able to deliver,  or if it is required to withdraw
or cancel,  any form or  statement  previously  delivered by it pursuant to this
Section 2.16(b). A Non-U.S.  Lender shall not be required to deliver any form or
statement  pursuant  to the  immediately  preceding  sentences  in this  Section
2.16(b)  that such  Non-U.S.  Lender is not  legally  able to deliver  (it being
understood  and agreed that the Borrower  shall  withhold or deduct such amounts
from any payments  made to such  Non-U.S.  Lender that the  Borrower  reasonably
determines  are required by law and that  payments  resulting  from a failure to
comply with this  paragraph  (b) shall not be subject to payment or indemnity by
the Borrower pursuant to Section 2.16(a)).

2.17  Indemnity.  The Borrower  agrees to indemnify each Lender and to hold each
Lender  harmless from any loss or expense which such Lender may sustain or incur
as a  consequence  of  (a) default  by the  Borrower in making a  borrowing  of,
conversion into or continuation of Eurodollar Loans after the Borrower has given
a  notice  requesting  the  same  in  accordance  with  the  provisions  of this
Agreement,  (b)  default  by the  Borrower  in making any  prepayment  after the
Borrower has given a notice  thereof in accordance  with the  provisions of this
Agreement or (c) the making of a prepayment of  Eurodollar  Loans on a day which
is  not  the  last  day  of  an  Interest  Period  with  respect  thereto.  Such
indemnification  shall not exceed the sum of (i) an  amount equal to the excess,
if any, of (A) the amount of interest  which would have accrued on the amount so
prepaid,  or not so borrowed,  converted or  continued,  for the period from the
date of such prepayment or of such failure to borrow, convert or continue to the
last day of such  Interest  Period  (or,  in the case of a  failure  to  borrow,
convert or continue,  the Interest  Period that would have commenced on the date
of such failure) in each case at the applicable  rate of interest for such Loans
provided for herein (excluding, however, the Applicable Margin included therein,
if any) over (B) the  amount  of  interest  (as  reasonably  determined  by such
Lender)  which would have  accrued to such Lender on such amount by placing such
amount on deposit for a comparable  period with leading  banks in the  interbank
eurodollar  market plus (ii) any  transaction costs of such Lender in connection
with the related  funding or  redeployment  of funds.  A  certificate  as to any
amounts  payable  pursuant to this Section  2.17,  together  with a  calculation
thereof in reasonable detail, shall be submitted to the Borrower by any affected
Lender and such  certificate  shall be  conclusive  in the  absence of  manifest
error.  This covenant  shall survive the  termination  of this Agreement and the
payment of the Notes and all other amounts payable hereunder.

2.18 Change of Lending  Office.  Each Lender agrees that, upon the occurrence of
any event  giving rise to the  operation of Section  2.14,  2.15(a) or 2.16 with
respect to such Lender,  it will, if requested by the Borrower,  use  reasonable
efforts (subject to overall policy  considerations  of such Lender) to designate
another  lending  office for any Loans affected by such event with the object of
avoiding the consequences of such event;  provided that such designation is made
on terms that,  in the sole  judgment of such Lender,  cause such Lender and its
lending  office(s)  to  suffer  no  material   economic,   legal  or  regulatory
disadvantage,  and  provided,  further,  that nothing in this Section 2.18 shall
affect or postpone any of the  obligations  of the Borrower or the rights of any
Lender pursuant to Section 2.14, 2.15(a) or 2.16.

2.19 Use of Proceeds.  The Borrower  shall use the proceeds of the Loans only in
the manner expressly contemplated by Section 4.16.

2.20  Replacement of Lenders.  If no Event of Default then exists,  the Borrower
may replace any Lender (the "Replaced Lender") if an event occurs giving rise to
the  operation of Section 2.14 or Section  2.15,  which  results in the Replaced
Lender  charging to Borrower  increased costs in excess of those being generally
charged  by the  other  Lenders  and such  Lender is not able to  eliminate  the
increased  costs pursuant to Section 2.18. The Replaced Lender shall be replaced
with one or more banks,  financial  institutions,  or other  entities  which are
reasonably  acceptable to the Administrative Agent (each a "Replacement Lender")
under the terms set out in Section 10.6(c). Upon execution of the Assignment and
Acceptance  referred to in Section  10.6(c),  payment of amounts  referred to in
Section 10.6(c),  and delivery to the Replacement Lender of the appropriate Note
or Notes  executed by  Borrower,  the  Replacement  Lender shall become a Lender
under this  Agreement and the Replaced  Lender shall no longer be a Lender under
this Agreement,  except with respect to  indemnification  provisions  under this
Agreement, which shall survive as to such Replaced Lender.



                          SECTION 3. LETTERS OF CREDIT

3.1 L/C  Commitment.  (a) Prior to the date hereof,  Norwest Bank has issued the
Letters of Credit listed on Schedule 3.1 (the "Existing Letters of Credit"), and
subject to the terms and  conditions  hereof,  the Lender  designated as Issuing
Lender  hereunder,  in reliance on the agreements of the other Lenders set forth
in Section 3.4(a), agrees to issue letters of credit (together with the Existing
Letters of Credit,  "Letters of Credit") for the account of the Borrower, or for
the joint  and  several  account  of the  Borrower  and any  Subsidiary,  on any
Business  Day during the  Commitment  Period in such form as may be requested by
the  Borrower and approved  from time to time by the Issuing  Lender;  provided,
that such approval may not be unreasonably withheld, delayed or conditioned; and
provided, further, that the Issuing Lender shall have no obligation to issue any
Letter  of  Credit  if,  after  giving  effect  to  such  issuance,  (i) the L/C
Obligations  would exceed the L/C  Commitment or (ii) the Aggregate  Outstanding
Extensions  of Credit would  exceed the  aggregate  Commitments.  Each Letter of
Credit shall (i) be denominated in Dollars,  (ii) be either (x) a standby letter
of credit  issued to  support  (I)  obligations  of the  Borrower  or any of its
Subsidiaries,  contingent  or otherwise,  which  finance the working  capital or
business  needs  of  the  Borrower  or  its  Subsidiaries  or  (II)  performance
obligations of the Borrower and its Subsidiaries,  in each case, incurred in the
ordinary course of business (a "Standby Letter of Credit"),  or (y) a commercial
letter of credit in respect of the purchase of goods or services by the Borrower
or any of its  Subsidiaries  in the ordinary  course of business (a  "Commercial
Letter of Credit"),  (iii) expire no later than five  Business Days prior to the
Termination  Date  and (iv)  expire  no later  than 365 days  after  its date of
issuance, provided that any Letter of Credit with a 365-day duration may provide
for the renewal  thereof at the  election of the Borrower  (in  accordance  with
procedures  to be  established  by the Issuing  Lender) for  additional  365-day
periods  (which  shall not  expire  later than five  Business  Days prior to the
Termination Date).

(b) Each Letter of Credit  issued after the Closing Date shall be subject to the
Uniform Customs and, to the extent not inconsistent  therewith,  the laws of the
State of New York.

3.2  Procedure  for Issuance of Letter of Credit.  The Borrower may from time to
time request that the Issuing  Lender issue a Letter of Credit by  delivering to
the Issuing  Lender at its address for notices  specified  herein an Application
therefor,  completed to the  satisfaction of the Issuing Lender,  and such other
certificates,  documents and other papers and  information as the Issuing Lender
may request.  Upon receipt of any  Application,  the Issuing Lender will process
such  Application  and  the   certificates,   documents  and  other  papers  and
information  delivered  to it in  connection  therewith in  accordance  with its
customary  procedures and shall  promptly  issue the Letter of Credit  requested
thereby  (but in no event  shall the  Issuing  Lender be  required  to issue any
Letter of Credit  earlier  than three  Business  Days  after its  receipt of the
Application therefor and all such other certificates, documents and other papers
and  information  relating  thereto) by issuing  the  original of such Letter of
Credit  to the  beneficiary  thereof  or as  otherwise  may be  agreed to by the
Issuing Lender and the Borrower. The Issuing Lender shall furnish a copy of such
Letter of Credit to the Borrower promptly  following the issuance  thereof.  The
Issuing Lender shall promptly furnish to the  Administrative  Agent, which shall
in turn promptly furnish to the Lenders,  notice of the issuance of each Standby
Letter of Credit  (including the amount thereof).  On each L/C Fee Payment Date,
the Issuing Lender shall promptly  furnish to the  Administrative  Agent,  which
shall in turn  promptly  furnish to the Lenders,  notice of the  aggregate  face
amount of the Commercial Letters of Credit outstanding on such date.

3.3 Fees,  Commissions  and Other Charges.  (a) The Borrower agrees that it will
pay a commission on all outstanding  Letters of Credit at a rate per annum equal
to 1/8 of 1% above the  Applicable  Margin then in effect with  respect to Loans
that are Eurodollar  Loans of the face amount of each such Letter of Credit,  of
which 1/8 of 1% per annum will be a fronting  fee for the account of the Issuing
Lender, and the remainder will be shared ratably among the Lenders in accordance
with their  Percentages,  payable  quarterly  in arrears on each L/C Fee Payment
Date after the issuance date.

(b) In addition to the foregoing fees and commissions,  the Borrower agrees that
it shall pay or  reimburse  the  Issuing  Lender  promptly  upon demand for such
normal  and  customary  costs and  expenses  as are  incurred  or charged by the
Issuing Lender in issuing, negotiating, effecting payment under, or amending any
Letter of Credit.

(c) The  Administrative  Agent shall,  promptly  following its receipt  thereof,
distribute  to the  Issuing  Lender  and  the  L/C  Participants  all  fees  and
commissions  received by the Administrative  Agent for their respective accounts
pursuant to this Section.

3.4 L/C  Participation.  (a)  Effective  on the  Closing  Date in respect of the
Existing  Letters of Credit,  and  effective on the date of issuance  thereof in
respect of each Letter of Credit issued  hereunder  after the Closing Date,  the
Issuing Lender in respect of each Letter of Credit  irrevocably  agrees to grant
and hereby grants to each L/C Participant, and, to induce such Issuing Lender to
issue Letters of Credit hereunder,  each L/C Participant  irrevocably  agrees to
accept and purchase and hereby accepts and purchases  from such Issuing  Lender,
on the terms and conditions  hereinafter  stated, for such L/C Participant's own
account  and  risk  an  undivided  interest  equal  to  such  L/C  Participant's
Percentage in such Issuing Lender's  obligations and rights under such Letter of
Credit and the amount of each draft paid by such Issuing Lender thereunder. Each
L/C Participant  unconditionally and irrevocably agrees with such Issuing Lender
in respect of each Letter of Credit that, if a draft is paid under any Letter of
Credit  issued by such  Issuing  Lender  for which  such  Issuing  Lender is not
reimbursed  in full  by the  Borrower  in  accordance  with  the  terms  of this
Agreement,  such L/C Participant shall pay to such Issuing Lender upon demand at
such Issuing  Lender's  address for notices  specified herein an amount equal to
such L/C  Participant's  Percentage  of the  amount of such  draft,  or any part
thereof, which is not so reimbursed.

(b) If any amount  required  to be paid by any L/C  Participant  to the  Issuing
Lender pursuant to Section 3.4(a) in respect of any unreimbursed  portion of any
payment  made by the  Issuing  Lender  under any Letter of Credit is paid to the
Issuing  Lender  within three  Business Days after the date such payment is due,
such L/C  Participant  shall pay to the Issuing Lender on demand an amount equal
to the product of (i) such amount,  times (ii) the daily  average  Federal Funds
Effective  Rate during the period from and  including  the date such  payment is
required  to the date on which such  payment  is  immediately  available  to the
Issuing  Lender,  times (iii) a fraction the numerator of which is the number of
days that elapse during such period and the  denominator of which is 360. If any
such  amount  required  to be paid by any L/C  Participant  pursuant  to Section
3.4(a) is not made  available  to the  Issuing  Lender  by such L/C  Participant
within  three  Business  Days after the date such  payment is due,  the  Issuing
Lender shall be entitled to recover from such L/C Participant,  on demand,  such
amount with interest thereon calculated from such due date at the rate per annum
applicable to Loans that are Base Rate Loans  hereunder.  A  certificate  of the
Issuing  Lender  submitted  to any L/C  Participant  with respect to any amounts
owing under this Section shall be conclusive in the absence of manifest error.

(c)  Whenever,  at any time after the Issuing  Lender has made payment under any
Letter of Credit and has received from any L/C Participant its pro rata share of
such payment in accordance with Section 3.4(a),  the Issuing Lender receives any
payment related to such Letter of Credit (whether  directly from the Borrower or
otherwise,  including  proceeds  of  collateral  applied  thereto by the Issuing
Lender), or any payment of interest on account thereof,  the Issuing Lender will
distribute to such L/C Participant its pro rata share thereof;  provided that in
the event that any such payment received by the Issuing Lender shall be required
to be returned by the Issuing Lender,  such L/C Participant  shall return to the
Issuing Lender the portion thereof previously  distributed by the Issuing Lender
to it.

3.5 Reimbursement  Obligation of the Borrower.  The Borrower agrees to reimburse
the  Issuing  Lender on each  date on which  the  Issuing  Lender  notifies  the
Borrower of the date and amount of a draft  presented under any Letter of Credit
and paid by the Issuing  Lender for the amount of (a) such draft so paid and (b)
any taxes,  fees,  charges or other  costs or  expenses  incurred by the Issuing
Lender in connection  with such payment.  Each such payment shall be made to the
Issuing  Lender at its address for notices  specified  herein in lawful money of
the United States and in immediately  available funds. Interest shall be payable
to the Issuing  Lender on any and all amounts drawn under Letters of Credit from
the date of such drawing until the date three Business Days after receipt by the
Borrower from the Issuing Lender of notice of such drawing at the rate set forth
in Section 2.10(b) for Loans,  and thereafter  until payment in full at the rate
set forth in Section 2.10(c).

3.6 Obligations Absolute.  The Borrower's obligations under this Section 3 shall
be absolute and  unconditional  under any and all circumstances and irrespective
of any setoff, counterclaim or defense to payment which the Borrower may have or
have had against the Issuing  Lender,  any  beneficiary of a Letter of Credit or
any other Person. The Borrower also agrees with the Issuing Lender that, subject
to Section  3.7,  the  Issuing  Lender  shall not be  responsible  for,  and the
Borrower's Reimbursement Obligations under Section 3.5 shall not be affected by,
among  other  things,  the  validity  or  genuineness  of  documents  or of  any
endorsements  thereon,  even  though  such  documents  shall in fact prove to be
invalid,  fraudulent or forged, or any dispute between or among the Borrower and
any  beneficiary of any Letter of Credit or any other party to which such Letter
of Credit may be  transferred or any claims  whatsoever of the Borrower  against
any  beneficiary  of such Letter of Credit or any such  transferee.  The Issuing
Lender  shall not be liable for any error,  omission,  interruption  or delay in
transmission,   dispatch  or   delivery  of  any  message  or  advice,   however
transmitted,  in  connection  with any  Letter of  Credit,  except for errors or
omissions  found by a final and  nonappealable  decision of a court of competent
jurisdiction to have resulted from the gross negligence or willful misconduct of
the Issuing Lender.  The Borrower agrees that any action taken or omitted by the
Issuing  Lender under or in connection  with any Letter of Credit or the related
drafts or  documents,  if done in the  absence  of gross  negligence  or willful
misconduct and in accordance with the standards of care specified in the Uniform
Commercial  Code of the State of New York,  shall be binding on the Borrower and
shall not result in any liability of the Issuing Lender to the Borrower.

3.7 Letter of Credit Payments. If any draft shall be presented for payment under
any Letter of Credit,  the Issuing Lender shall promptly  notify the Borrower of
the date and amount  thereof.  The  responsibility  of the Issuing Lender to the
Borrower in connection  with any draft presented for payment under any Letter of
Credit shall, in addition to any payment  obligation  expressly  provided for in
such Letter of Credit,  be to determine  whether the documents  (including  each
draft) delivered under such Letter of Credit in connection with such presentment
are substantially in conformity with such Letter of Credit.

3.8 Applications. To the extent that any provision of any Application related to
any Letter of Credit is inconsistent  with the provisions of this Section 3, the
provisions of this Section 3 shall apply.



                    SECTION 4. REPRESENTATIONS AND WARRANTIES

To induce the Arranger,  the Administrative  Agent, the Collateral Agent and the
Lenders  to enter  into  this  Agreement  and to make  the  Loans  and  issue or
participate  in the  Letters of  Credit,  the  Borrower  hereby  represents  and
warrants to the Arranger,  the  Administrative  Agent,  the Collateral Agent and
each Lender that:

4.1 Financial Condition.  (a) The unaudited pro forma consolidated balance sheet
of the Borrower as at September 30, 1997 (including the notes thereto) (the "Pro
Forma Balance  Sheet"),  copies of which have  heretofore been furnished to each
Lender,  has been prepared giving effect (as if such events had occurred on such
date) to the  borrowings  under this  Agreement  contemplated  to be made on the
Closing Date and the use of proceeds  thereof and the payment of estimated  fees
and  expenses in  connection  therewith.  The Pro Forma  Balance  Sheet has been
prepared based on the best information  available to the Borrower as of the date
of delivery thereof and presents fairly in all material  respects on a pro forma
basis the  estimated  consolidated  financial  position  of the  Borrower  as of
September 30, 1997, assuming that the events specified in the preceding sentence
had actually occurred at such date.

(b) The audited  consolidated balance sheets of the Borrower as at June 30, 1997
and June 30, 1996 and the related audited consolidated  statements of income and
of cash flows for the fiscal years ended on such dates, reported on by KPMG Peat
Marwick LLP, copies of which have heretofore been furnished to each Lender,  are
complete  and  correct  and  present   fairly  in  all  material   respects  the
consolidated  financial  condition  of the  Borrower as at such  dates,  and the
consolidated  results of operations and  consolidated  cash flows for the fiscal
years then ended.

All such financial  statements  described in this Section 4.1(b),  including the
related schedules and notes thereto,  have been prepared in accordance with GAAP
applied consistently throughout the periods involved (except as approved by such
accountants  and  as  disclosed  therein).  Except  for  contingent  obligations
incurred in the ordinary course of business, the Borrower had at the date of the
most recent  audited  balance  sheet  referred to above no material  undisclosed
liabilities, Guarantee Obligations, contingent liability or liability for taxes,
nor any material  long-term  lease or unusual  forward or long-term  commitment,
including,  without  limitation,  any interest rate or foreign  currency swap or
exchange  transaction,  which is not  reflected in such balance  sheet or in the
notes  thereto.  During the period from June 30, 1997 to and  including the date
hereof there has been no sale,  transfer or other disposition by the Borrower or
any of its  Consolidated  Subsidiaries of any material part of their business or
property.

4.2 No Change.  (a) Since June 30, 1997,  there has been no development or event
which has had or could reasonably be expected to have a Material Adverse Effect,
and (b) during the period from June 30, 1997 to and including the date hereof no
dividends  or other  distributions  have  been  declared,  paid or made upon the
Capital  Stock of the Borrower nor has any of the Capital  Stock of the Borrower
been  redeemed,  retired,  purchased  or  otherwise  acquired  for  value by the
Borrower,  except for the notice that the Borrower has received  that it will be
required  to  repurchase  approximately  16,000  shares of Capital  Stock of the
Borrower from a former  employee of the Borrower and which Capital Stock will be
purchased by the Borrower in due course.

4.3  Corporate  Existence;  Compliance  with Law.  Each  Loan  Party (a) is duly
organized,  validly  existing  and  in  good  standing  under  the  laws  of the
jurisdiction of its  organization,  except (in the case of any Subsidiary) where
the failure to do so could not reasonably be expected to have a Material Adverse
Effect, (b) has the power and authority, and the legal right, to own and operate
its  property,  to lease the  property  it operates as lessee and to conduct the
business in which it is  currently  engaged,  except  where the failure to do so
could not reasonably be expected to have a Material Adverse Effect,  (c) is duly
qualified and in good  standing  under the laws of each  jurisdiction  where its
ownership,  lease or  operation  of  property  or the  conduct  of its  business
requires such  qualification,  except where the failure to be so qualified could
not  reasonably  be  expected  to have a Material  Adverse  Effect and (d) is in
compliance with all Requirements of Law except to the extent that the failure to
comply  therewith could not, in the aggregate,  reasonably be expected to have a
Material Adverse Effect.

4.4 Corporate Power; Authorization; Enforceable Obligations. Each Loan Party has
the power and authority,  and the legal right, to make, deliver and perform each
Loan Document to which it is a party and, in the case of the Borrower, to borrow
hereunder.  Each Loan  Party has taken all  necessary  action to  authorize  the
execution, delivery and performance of the Loan Documents to which it is a party
and, in the case of the Borrower,  to authorize the  borrowings on the terms and
conditions of this Agreement and the Notes. No material consent or authorization
of,  filing with,  notice to or other act by or in respect of, any  Governmental
Authority or any other Person is required in  connection  with the  transactions
contemplated hereby, the borrowings  hereunder or with the execution,  delivery,
performance,  validity or  enforceability  of this  Agreement or any of the Loan
Documents, except for those obtained on or before the date of this Agreement and
listed in Schedule 4.4, and except the filings referred to in Section 4.19. Each
Loan  Document has been duly executed and delivered on behalf of each Loan Party
thereto. This Agreement constitutes, and each other Loan Document upon execution
will  constitute,  a legal,  valid and  binding  obligation  of each Loan  Party
thereto,  enforceable against each such Loan Party in accordance with its terms,
except as enforceability  may be limited by applicable  bankruptcy,  insolvency,
reorganization,   moratorium  or  similar  laws  affecting  the  enforcement  of
creditors'  rights  generally  and  by  general  equitable  principles  (whether
enforcement is sought by proceedings in equity or at law).

4.5 No Legal Bar. The execution,  delivery and performance of this Agreement and
the other Loan  Documents,  the  issuance of Letters of Credit,  the  borrowings
hereunder and the use of the proceeds  thereof will not violate any  Requirement
of Law or  Contractual  Obligation  of any Loan Party and will not result in, or
require,  the  creation  or  imposition  of any Lien on any of their  respective
properties or revenues  pursuant to any such  Requirement  of Law or Contractual
Obligation (other than the Liens created by the Security Documents).

4.6 No Material  Litigation.  No litigation,  investigation  or proceeding of or
before any arbitrator or Governmental  Authority is pending or, to the knowledge
of  the  Borrower,  threatened  by  or  against  the  Borrower  or  any  of  its
Subsidiaries  or against any of its or their  respective  properties or revenues
(a)  with  respect  to any  of the  Loan  Documents  or any of the  transactions
contemplated hereby or thereby or (b) which could reasonably be expected to have
a Material Adverse Effect.

4.7 No Default.  Neither the Borrower nor any of its  Subsidiaries is in default
under or with respect to any of its Contractual Obligations in any respect which
could  reasonably be expected to have a Material  Adverse Effect.  No Default or
Event of Default has occurred and is continuing.

4.8  Ownership  of  Property;  Liens.  Each of the  Borrower  and  its  Domestic
Subsidiaries  has title in fee simple to, or a valid leasehold  interest in, all
its real property,  and good title to, or a valid leasehold interest in, all its
other  property,  and none of such  property  is subject  to any Lien  except as
permitted  by  Section  7.3.  The  Borrower  and its  Subsidiaries  (other  than
Argentine  Subsidiaries)  have no fee  interests in any material  real  property
other than the Mortgaged  Property,  the Oil and Gas  Properties  and, as of the
date hereof, the real property described on Schedule 4.8.

4.9 Intellectual Property. The Borrower and each of its Subsidiaries owns, or is
licensed to use, all trademarks,  tradenames,  copyrights,  technology, know-how
and processes necessary for the conduct of its business as currently  conducted,
except for those the  failure to own or license  which could not  reasonably  be
expected to have a Material  Adverse  Effect  (collectively,  the  "Intellectual
Property").  No material  claim has been  asserted  and is pending by any Person
challenging or questioning the use of any Intellectual  Property or the validity
or effectiveness of any Intellectual Property, nor does the Borrower know of any
valid  basis  for  any  such  claim.  To the  Borrower's  knowledge,  the use of
Intellectual  Property by the Borrower and its Subsidiaries does not infringe on
the rights of any Person where such infringement could reasonably be expected to
have a Material Adverse Effect.

4.10 No Burdensome Restrictions. No Requirement of Law or Contractual Obligation
of the Borrower or any of its Subsidiaries  could reasonably be expected to have
a Material Adverse Effect.

4.11 Taxes.  Each of the  Borrower  and its  Domestic  Subsidiaries,  and to the
knowledge of the Borrower, its Argentine Subsidiaries have filed or caused to be
filed all material Federal, state and other tax returns which are required to be
filed and has paid all taxes shown to be due and  payable on said  returns or on
any assessments made against it or any of its property and all other taxes, fees
or  other  charges  imposed  on it or any of its  property  by any  Governmental
Authority  (other than any the amount or validity of which are  currently  being
contested  in good faith by  appropriate  proceedings  and with respect to which
reserves  in  conformity  with  GAAP  have  been  provided  on the  books of the
Borrower);  no material  tax Lien has been filed;  and, to the  knowledge of the
Borrower,  no claim is being asserted,  with respect to any material tax, fee or
other charge.

4.12 Federal Regulations. Except as otherwise provided by Sections 4.16 and 7.7,
no part of the proceeds of any Loans will be used for "purchasing" or "carrying"
any "margin  stock" within the  respective  meanings of each of the quoted terms
under  Regulation  G or  Regulation  U of the Board as now and from time to time
hereafter  in effect.  No part of the proceeds of any Loans will be used for any
purpose  which  violates the  provisions  of the  Regulations  of the Board.  If
requested by any Lender or the  Administrative  Agent, the Borrower will furnish
to the Administrative  Agent and each Lender a statement to the foregoing effect
in conformity with the requirements of FR Form G-3 or FR Form U-1 referred to in
said Regulation G or Regulation U, as the case may be.

4.13 ERISA.  Neither a Reportable Event nor an "accumulated  funding deficiency"
(within  the  meaning of  Section 412  of the Code or Section  302 of ERISA) has
occurred  during  the  five-year   period  prior  to  the  date  on  which  this
representation  is made or deemed made with  respect to any Plan,  and each Plan
has complied in all material  respects with the  applicable  provisions of ERISA
and the Code. No termination of a Single Employer Plan has occurred, and no Lien
in favor of the PBGC or a Plan has arisen,  during such  five-year  period.  The
present value of all accrued  benefits under each Single Employer Plan (based on
those  assumptions  used to fund  such  Plans)  did not,  as of the last  annual
valuation date prior to the date on which this  representation is made or deemed
made,  exceed the value of the  assets of such Plan  allocable  to such  accrued
benefits by a material amount.  Neither the Borrower nor any Commonly Controlled
Entity has had a complete  or partial  withdrawal  from any  Multiemployer  Plan
which has  resulted  or could  reasonably  be  expected  to result in a material
liability  under ERISA,  and neither the  Borrower  nor any Commonly  Controlled
Entity  would  become  subject  to any  material  liability  under  ERISA if the
Borrower or any such Commonly Controlled Entity were to withdraw completely from
all Multiemployer Plans as of the valuation date most closely preceding the date
on which this  representation  is made or deemed made.  To the  knowledge of the
Borrower and the Commonly Controlled Entities,  no such Multiemployer Plan is in
Reorganization  or Insolvent.  The present value (determined using actuarial and
other  assumptions  which are reasonable in respect of the benefits provided and
the employees  participating) of the liability of the Borrower and each Commonly
Controlled  Entity for post retirement  benefits to be provided to their current
and former  employees under Plans which are welfare benefit plans (as defined in
Section 3(1) of ERISA) does not, in the  aggregate,  exceed the assets under all
such Plans allocable to such benefits by an amount in excess of $1,000,000.

4.14 Investment Company Act; Other Regulations.  No Loan Party is an "investment
company"  within the meaning of the Investment  Company Act of 1940, as amended.
No Loan Party is subject to  regulation  under any  Federal or State  statute or
regulation  (other than  Regulation  X of the Board) which limits its ability to
incur Indebtedness.

4.15 Subsidiaries.  As of the date hereof,  the Subsidiaries  listed on Schedule
4.15  constitute all the direct or indirect  Subsidiaries  of the Borrower,  and
Schedule  4.15  shows,  as to each  such  Subsidiary,  its  jurisdiction  of its
incorporation,  its authorized capitalization and the ownership of Capital Stock
of such Subsidiary.

4.16  Purpose of Loans;  Limitations  on Use. The proceeds of the Loans shall be
used to finance Permitted Acquisitions and capital expenditures,  to finance the
repurchase  from time to time the  outstanding  Capital Stock of the Borrower to
the extent permitted by subsection 7.7 and for general corporate purposes of the
Borrower and its Subsidiaries  (including Excluded Subsidiaries) in the ordinary
course of business; provided, that the amount of proceeds of the Loans which may
be used for Permitted Acquisitions of oil and gas properties shall be limited to
an amount equal to the lesser of (a) $25,000,000 and (b) 65% of the value of the
oil and gas properties of Odessa Exploration  Incorporated  (after giving effect
to any such  Permitted  Acquisition),  which  value shall be  calculated  as the
present  value  discounted  at 10% of future net revenue  relating to all proved
developed   producing  reserves  and  proved  undeveloped   reserves  from  such
properties.  In addition,  if at least 90% of the original outstanding principal
amount  of the  Convertible  Subordinated  Debentures  or the  1997  Convertible
Subordinated  Notes shall have been converted into common stock of the Borrower,
the Borrower may use proceeds of the Loans to repurchase or redeem the remaining
outstanding Convertible Subordinated Debentures or 1997 Convertible Subordinated
Notes, as applicable, as permitted by Section 7.10.

4.17 Environmental  Matters.  Other than exceptions to any of the following that
could not, individually or in the aggregate, reasonably be expected to give rise
to a Material Adverse Effect:

(a) the Borrower and each of its Subsidiaries:  (i) are, and to the knowledge of
the  executive  management of the Borrower  within the period of all  applicable
statutes  of  limitation   have  been,  in   compliance   with  all   applicable
Environmental  Laws;  (ii) hold all  Environmental  Permits (each of which is in
full force and effect)  required for any of their current  operations or for any
property owned,  leased, or otherwise operated by any of them; (iii) are, and to
the knowledge of the executive  management of the Borrower  within the period of
all applicable statutes of limitation have been, in compliance with all of their
Environmental   Permits;  and  (iv)  reasonably  believe  that:  each  of  their
Environmental  Permits  required for their  continued  operations will be timely
renewed  and  complied   with,   without   material   expense;   any  additional
Environmental  Permits  that  may be  required  of any of them  will  be  timely
obtained and complied with,  without material  expense;  and compliance with any
Environmental Law that is or is reasonably expected by the Borrower's  executive
management  to become  applicable  to any of them will be  timely  attained  and
maintained, without material expense.

(b) To the knowledge of the executive  management of the Borrower,  Materials of
Environmental  Concern  are not  present  at, on,  under,  in, or about any real
property now or formerly owned, leased or operated by the Borrower or any of its
Subsidiaries  or at any  other  location  (including,  without  limitation,  any
location to which Materials of  Environmental  Concern have been sent for re-use
or recycling or for treatment,  storage,  or disposal) which could reasonably be
expected  to  (i)  give  rise  to  liability  of  the  Borrower  or  any  of its
Subsidiaries under any applicable Environmental Law or otherwise result in costs
to the Borrower or any of its Subsidiaries, or (ii) interfere with the continued
operations of the Borrower or any of its Subsidiaries,  or (iii) impair the fair
saleable  value of any real  property  owned or leased by the Borrower or any of
its Subsidiaries.
 
(c) There is no judicial,  administrative, or arbitral proceeding (including any
notice of violation or alleged violation) under or relating to any Environmental
Law to which the Borrower or any of its  Subsidiaries is, or to the knowledge of
the  executive  management  of the  Borrower  will be,  named as a party that is
pending  or, to the  knowledge  of the  executive  management  of the  Borrower,
threatened.

(d) Neither the  Borrower nor any of its  Subsidiaries  has received any written
request for information,  or been notified that it is a potentially  responsible
party under or relating to the  federal  Comprehensive  Environmental  Response,
Compensation, and Liability Act or any similar Environmental Law.

(e) Neither the Borrower nor any of its  Subsidiaries has entered into or agreed
to any consent decree,  order, or settlement or other agreement,  nor is subject
to any  judgment,  decree,  or  order  or  other  agreement,  in  any  judicial,
administrative,  arbitral,  or  other  forum,  relating  to  compliance  with or
liability under any Environmental Law.

(f) To the  knowledge of the executive  management of the Borrower,  neither the
Borrower nor any of its  Subsidiaries  has assumed or  retained,  by contract or
operation of law, any  liabilities of any kind,  fixed or  contingent,  known or
unknown, under or relating to any Environmental Law.

For purposes of Section 8, each of the foregoing  representations and warranties
contained  in this  Section  4.17  that is  qualified  by the  knowledge  of the
executive management of the Borrower shall be deemed not to be so qualified.

4.18  Accuracy of  Information.  No statement or  information  contained in this
Agreement,  any other Loan Document, the Confidential  Information Memorandum or
any other  document,  certificate  or statement  furnished to the Arranger,  the
Administrative  Agent or the Lenders,  by or on behalf of any Loan Party for use
in connection with the transactions  contemplated by this Agreement or the other
Loan Documents, contained as of the date such statement,  information,  document
or certificate was so furnished any untrue statement of a material fact or, with
all such statements and information  being taken as a whole,  omitted to state a
material  fact  necessary in order to make the  statements  contained  herein or
therein not misleading.  It is understood that no  representation or warranty is
made concerning the forecasts, estimates, pro forma information, projections and
statements  as  to  anticipated  future  performance  or  conditions,   and  the
assumptions on which they were based contained in any such information, reports,
financial  statements,  exhibits or  schedules,  except that as of the date such
forecasts,  estimates,  pro forma  information,  projections and statements were
generated,  such forecasts,  estimates,  pro forma information,  projections and
statements  were based upon good faith  estimates  and  assumptions  believed by
management of the Borrower and its  Subsidiaries  to be reasonable at such time.
There is no fact known to the  executive  management  of the Borrower that could
reasonably  be  expected  to have a Material  Adverse  Effect  that has not been
expressly  disclosed  herein,  in the other  Loan  Documents,  or in such  other
documents, certificates and statements furnished to the Administrative Agent and
the Lenders for use in connection with the transactions  contemplated hereby and
by the other Loan Documents.

4.19 Security  Documents.  (a) The Master Guarantee and Collateral  Agreement is
effective  to create in favor of the  Collateral  Agent,  for the benefit of the
Lenders, a security interest which has attached (as that term is used in Section
9-203 of the New York UCC) in the  Pledged  Securities  and  other  instruments,
negotiable  documents,  chattel paper and money described therein, to the extent
that the Loan  Parties to the Master  Guaranty  and  Collateral  Agreement  have
rights in such Collateral,  and proceeds thereof and, when the Pledged Notes and
the stock  certificates  representing  the Pledged Stock  described  therein and
other  instruments,  negotiable  documents,  chattel  paper and money  described
therein  are  delivered  to the  Collateral  Agent,  the  Master  Guarantee  and
Collateral  Agreement  shall  constitute a perfected first priority Lien on, and
security  interest in, all right,  title and interest of the relevant pledgor in
such Pledged Securities and other  instruments,  negotiable  documents,  chattel
paper and money and the proceeds  thereof,  as security for the  Obligations (as
defined in the Master  Guarantee and Collateral  Agreement),  in each case prior
and  superior in right to any other  Person,  except for  inchoate tax liens for
obligations to be paid in the ordinary course of business.

(b) The Master  Guarantee  and  Collateral  Agreement  is effective to create in
favor of the  Collateral  Agent,  for the  benefit  of the  Lenders,  a security
interest  which has attached  (as that term is used in Section  9-203 of the New
York  UCC) in the  Collateral  described  therein  (other  than  the  Collateral
described in Section 4.19(a)), to the extent that the Loan Parties to the Master
Guarantee and Collateral Agreement have rights in such Collateral,  and proceeds
thereof,  and when financing  statements in appropriate  form are properly filed
(with  all  required  filing  fees  being  paid)  in the  offices  specified  on
Schedule 4.19(b)  and, with respect to vehicles  included in the  Collateral and
covered by certificates of title issued by any State, when the security interest
of the  Collateral  Agent  has  been  noted  on such  certificate  of  title  in
accordance  with  the  certificate  of  title  laws of such  State,  the  Master
Guarantee and  Collateral  Agreement  shall  constitute a perfected Lien on, and
security  interest  in, all right,  title and  interest  of the Loan  Parties in
substantially all of such Collateral and the proceeds  thereof,  as security for
the Obligations (as defined in the Master  Guarantee and Collateral  Agreement),
in each case prior and  superior in right to any other  Person,  other than with
respect to Liens expressly permitted by Section 7.3.

(c) Each  Mortgage,  which has been  executed and delivered by the relevant Loan
Party,  and properly filed and recorded (with all required  filing and recording
fees being paid) in the office(s) specified on  Schedule 4.19(c),  constitutes a
Lien on, and  security  interest  in, all right,  title and interest of the Loan
Parties in the Mortgaged Property properly  described  therein,  as security for
the  Obligations (as defined in the relevant  Mortgage),  in each case prior and
superior  in right  to any  other  Person,  other  than  with  respect  to Liens
expressly permitted by Section 7.3.

(d) Each Oil and Gas  Mortgage,  which has been  executed  and  delivered by the
relevant Loan Party,  and properly filed and recorded (with all required  filing
and recording fees being paid) in the office(s)  specified on  Schedule 4.19(d),
constitutes a perfected Lien on, and security interest in, all right,  title and
interest  of the Loan  Parties in the Oil and Gas  Property  properly  described
therein, as security for the Obligations (as defined in the relevant Oil and Gas
Mortgage),  in each case prior and superior in right to any other Person,  other
than with respect to Liens expressly permitted by Section 7.3.

4.20 Solvency.  The Borrower and its  Subsidiaries,  taken as a whole,  are, and
after giving effect to the incurrence of all Indebtedness and obligations  being
incurred in connection herewith will be, Solvent.

4.21 Labor  Matters.  There are no strikes  pending or, to the  knowledge of the
Borrower,  threatened  against the  Borrower or any of its  Subsidiaries  which,
individually  or in the  aggregate,  could  reasonably  be  expected  to  have a
Material Adverse Effect.  The hours worked and payments made to employees of the
Borrower  and each of its  Subsidiaries  have not been in  violation of the Fair
Labor  Standards Act or any other  applicable  Requirement of Law, except to the
extent  such  violations  could  not,  individually  or  in  the  aggregate,  be
reasonably expected to have a Material Adverse Effect. All material payments due
from the  Borrower or any of its  Subsidiaries  on account of wages and employee
health and welfare  insurance and other  benefits have been paid or accrued as a
liability on the books of the Borrower or such Subsidiary.

4.22 Indentures.  All Indebtedness of the Borrower hereunder constitutes "Senior
Indebtedness" within the meaning of the Indenture and the 1997 Indenture.

4.23  Excluded  Subsidiaries.  As of the  Closing  Date the  Borrower  is in the
process of  dissolving  all  Excluded  Subsidiaries  listed in clause (a) of the
definition of Excluded  Subsidiaries in Section 1.1, and the Borrower expects to
dissolve the Excluded  Subsidiaries  listed in clause (c) of the  definition  of
Excluded Subsidiaries in Section 1.1 in the ordinary of business when the assets
of such corporations are disposed of.

4.24 Oil and Gas  Properties.  The Oil and Gas Properties  described in Schedule
1.1C  constitute 80% of the value of the proved  developed  producing and proved
undeveloped reserves of Odessa Exploration Incorporated on the Closing Date. For
purposes of this Section,  the value of such reserves shall be calculated as the
present value discounted at 10% of future revenue relating to such reserves.



                         SECTION 5. CONDITIONS PRECEDENT

5.1  Conditions  to  Effectiveness.  The  effectiveness  of the  changes  to the
Existing  Credit  Agreement  made  pursuant to this  Agreement is subject to the
satisfaction, prior to or concurrently with the Closing Date (which Closing Date
shall  occur on or  before  November  20,  1997),  of the  following  conditions
precedent:

(a) Loan Documents. The Administrative Agent shall have received this Agreement,
executed and  delivered by a duly  authorized  officer of the  Borrower,  with a
counterpart or a conformed copy for each Lender.

(b) Related  Agreements.  The Administrative  Agent shall have received,  with a
copy for each Lender,  true and correct copies,  certified as to authenticity by
the  Borrower,  of  the  Insurance  Policies  (or  certificates  evidencing  the
effectiveness of such Insurance Policies and the material terms thereof) and the
1997 Indenture.

(c) Fees. The Lenders, Arranger and the Administrative Agent shall have received
all fees  required to be paid,  and all  expenses for which  invoices  have been
presented, on or before the Closing Date.

(d) Approvals.  All governmental and third party approvals  necessary or, in the
reasonable discretion of the Administrative Agent,  advisable in connection with
this  Agreement  and the  financings  contemplated  hereby  and  the  continuing
operations  of the  Borrower  and its  Domestic  Subsidiaries  shall  have  been
obtained and be in full force and effect,  and all  applicable  waiting  periods
shall have expired without any action being taken or threatened by any competent
authority which would restrain,  prevent or otherwise impose adverse  conditions
on the continuing operations of the Borrower.

(e) [Intentionally omitted].

(f) Solvency Analysis. The Lenders shall have received a reasonably satisfactory
solvency analysis certified by the chief financial officer of the Borrower which
shall document the solvency of the Borrower and its Subsidiaries considered as a
whole after giving effect to the transactions contemplated hereby.
 
(g) Legal  Opinions.  The  Administrative  Agent  shall  have  received,  with a
counterpart  for each Lender,  (i) the executed legal opinion of Jack D. Loftis,
Jr., Esq.,  general  counsel to the Loan Parties,  substantially  in the form of
Exhibit  E-1 and (ii) the  executed  legal  opinion of Porter & Hedges,  L.L.P.,
counsel to the Loan Parties, substantially in the form of Exhibit E-2. Each such
legal  opinion  shall be in form and substance  reasonably  satisfactory  to the
Lenders and shall cover such matters incident to the  transactions  contemplated
by this Agreement as the Administrative Agent may reasonably require.

(h) Closing Certificate.  The Administrative  Agent shall have received,  with a
counterpart for each Lender, a certificate of each Loan Party, dated the Closing
Date,  substantially in the form of Exhibit D, with  appropriate  insertions and
attachments,  executed by the President or any Vice  President and the Secretary
or any Assistant Secretary of such Loan Party.

(i) Corporate  Proceedings of Loan Parties.  The Administrative Agent shall have
received,  with a counterpart for each Lender,  a copy of the resolutions of the
Board of Directors of each Loan Party  authorizing  (i) the execution,  delivery
and performance of the Loan Documents to which it is a party (including, but not
limited to, the  granting of any Liens  provided for  therein),  and (ii) in the
case of the Borrower, the borrowings contemplated hereunder.

(j) Pledged  Securities;  Stock Powers. The Collateral Agent shall have received
the Pledged  Stock  pledged  pursuant  to the Master  Guarantee  and  Collateral
Agreement,  together  with an  undated  stock  power for each  such  certificate
executed in blank by a duly authorized officer of the pledgor thereof.

(k) Filings,  Registrations and Recordings.  Each document  (including,  without
limitation,  any Uniform  Commercial Code financing  statement) required  by the
Security  Documents or the Existing Credit  Agreement or under law or reasonably
requested by the Administrative Agent to be delivered to the Collateral Agent or
to be filed,  registered  or recorded in order to (i)  continue the liens on the
Collateral  under the  Security  Documents  with the same  priority as under the
Existing Credit Agreement  immediately prior to the Closing Date and (ii) create
in favor of the Collateral  Agent,  for the benefit of the Lenders,  a perfected
Lien on all Collateral that was to have been perfected  pursuant to Section 6.10
and 6.11 of the Existing Credit Agreement  immediately prior to the Closing Date
(including,  without limitation,  all Collateral of New Loan Parties), prior and
superior  in right  to any  other  Person  (other  than  with  respect  to Liens
expressly  permitted  by  Section  7.3),  shall be in  proper  form for  filing,
registration   or  recordation  in  each   jurisdiction  in  which  the  filing,
registration  or  recordation  thereof is so required or  requested,  other than
those documents  required to be filed,  registered or recorded after the Closing
Date pursuant to Section 6.11.

(l)  Existing  Credit  Agreement.  To the extent  requested  by any Lender,  the
Borrower  shall  execute and  deliver a new Note in the amount of such  Lender's
Commitment  in  replacement  and  substitution  of (but not in payment  of) such
Lender's note under the Existing Credit Agreement and the  Administrative  Agent
shall request all the Lenders who hold notes under the Existing Credit Agreement
to  return  such  notes  to  the  Administrative   Agent  for  cancellation  and
replacement (but not payment),  if applicable.  The Borrower shall have paid all
interest,  fees and other  amounts  (other  than  principal)  accrued  under the
Existing Credit Agreement through the Closing Date.

5.2 Conditions to Each Extension of Credit. The agreement of each Lender to make
any  extension  of  credit  requested  to be made by it on any date  (including,
without  limitation,  its initial extension of credit) and the occurrence of the
Closing  Date  is  subject  to  the  satisfaction  of the  following  conditions
precedent:

(a) Representations  and Warranties.  Except to the extent that they are made as
of a specific date, each of the  representations and warranties made by any Loan
Party  in or  pursuant  to  the  Loan  Documents  (excluding  on and  after  the
Collateral  Release  Date,  the  representations  and  warranties  contained  in
subsections 4.19 and 4.24) shall be true and correct in all material respects on
and as of such date as if made on and as of such date.


(b) No  Default.  No  Default or Event of Default  shall  have  occurred  and be
continuing  on such  date or after  giving  effect to the  extensions  or credit
requested to be made on such date.

(c) Additional  Matters.  All  proceedings,  and all documents,  instruments and
other legal matters in connection  with the  transactions  contemplated  by this
Agreement and the other Loan Documents shall be reasonably  satisfactory in form
and substance to the Administrative  Agent, and the  Administrative  Agent shall
have received such other  documents and legal  opinions in respect of any aspect
or consequence of the  transactions  contemplated  hereby or thereby as it shall
reasonably request.

(d) Borrowing  Notice.  The Borrower shall have delivered to the  Administrative
Agent the applicable borrowing notice in accordance with the relevant subsection
of Section 2.

Each  borrowing  by and issuance of a Letter of Credit on behalf of the Borrower
hereunder shall constitute a  representation  and warranty by the Borrower as of
the date of such  extension  of credit  that the  conditions  contained  in this
Section 5.2 have been satisfied.



                        SECTION 6. AFFIRMATIVE COVENANTS

The Borrower  hereby agrees that, so long as the  Commitments  remain in effect,
any Note or Letter of Credit remains  outstanding and unpaid or any other amount
is owing to any Lender, the Arranger or the Administrative Agent hereunder,  the
Borrower shall and, if  applicable,  shall cause each of its  Subsidiaries  (and
with respect to Section 6.8, each of the Excluded Subsidiaries) to:

6.1 Financial  Statements.  Furnish to the Administrative Agent for distribution
to each Lender:

(a) as soon as available,  but in any event within 95 days after the end of each
fiscal year of the Borrower, a copy of the audited consolidated balance sheet of
the Borrower and its  Consolidated  Subsidiaries  as at the end of such year and
the related audited consolidated  statements of income and retained earnings and
of cash flows for such year,  setting forth in each case in comparative form the
figures for the  previous  year,  reported on without a "going  concern" or like
qualification  or exception,  or  qualification  arising out of the scope of the
audit,  by  KPMG  Peat  Marwick  LLP  or  other  independent   certified  public
accountants of nationally recognized standing; and

(b) as soon as available,  but in any event not later than 50 days after the end
of each  of the  first  three  quarterly  periods  of  each  fiscal  year of the
Borrower,  the  unaudited  consolidated  balance  sheet of the  Borrower and its
Consolidated  Subsidiaries  as at the  end  of  such  quarter  and  the  related
unaudited  consolidated  statements of income and retained  earnings and of cash
flows of the Borrower and its Consolidated Subsidiaries for such quarter and the
portion of the fiscal year  through the end of such  quarter,  setting  forth in
each case in comparative form the figures for the previous year,  certified by a
Responsible  Officer of the  Borrower  as being  fairly  stated in all  material
respects (subject to normal year-end audit adjustments);

all such  financial  statements  referred  to in this  Section  6.1(b)  shall be
complete  and  correct  in all  material  respects  and  shall  be  prepared  in
reasonable  detail and in accordance with GAAP applied  consistently  throughout
the periods reflected therein and with prior periods, subject to normal year-end
adjustments.

6.2 Certificates; Other Information. Furnish to each Lender:

(a) concurrently  with the delivery of the financial  statements  referred to in
Section  6.1(a),   (i)  a  certificate  of  the  independent   certified  public
accountants  reporting on such financial  statements  stating that in making the
examination necessary therefor no knowledge was obtained of any Default or Event
of Default,  except as  specified in such  certificate  and  (ii) copies  of all
reports or written communications providing advice,  recommendations or analysis
to the  management  of the  Borrower  from  such  independent  certified  public
accountants with regard to their audit of the financial  statements  referred to
in  Section  6.1(a)  or the  internal  financial  controls  and  systems  of the
Borrower;

(b)  concurrently  with the  delivery  of any  financial  statement  pursuant to
Section 6.1, (x) a certificate of a Responsible  Officer of the Borrower stating
that,  to the best of each such  Responsible  Officer's  knowledge,  during such
period (i) no Subsidiary has been formed or acquired (or, if any such Subsidiary
has  been  formed  or  acquired,   the  Loan  Parties  have  complied  with  the
requirements  of Section 6.10 with respect  thereto),  (ii) neither the Borrower
nor any of its  Subsidiaries  has  changed  its  name,  its  principal  place of
business,  its chief  executive  office,  its principal  place of business,  the
location where records concerning the Collateral are kept or the location of any
material item of tangible  Collateral without complying with the requirements of
this Agreement and the Security  Documents  with respect  thereto and (iii) each
Loan Party has observed or performed all of its covenants and other  agreements,
and satisfied  every  condition,  contained in this Agreement and the other Loan
Documents to which it is a party to be  observed,  performed or satisfied by it,
and that such  Responsible  Officer has  obtained no knowledge of any Default or
Event of Default except as specified in such  certificate and (y) in the case of
quarterly  or  annual  financial  statements,   a  certificate   containing  all
information  reasonably necessary for determining compliance by the Borrower and
its  Subsidiaries  with the  provisions  of this  Agreement  (including  but not
limited to Sections  2.7 and 7.1) as of the last day of such  fiscal  quarter or
fiscal year of the Borrower;

(c) as soon as available,  and in any event no later than the end of each fiscal
year of the Borrower, a projected  consolidated balance sheet of the Borrower as
of the end of the following fiscal year, and the related consolidated statements
of projected cash flow, projected retained earnings and projected income for the
following  fiscal year,  together  with an operating  budget with respect to the
following fiscal year, and, as soon as available, significant revisions, if any,
of  such  projections  with  respect  to such  fiscal  year  (collectively,  the
"Projections"),  which  Projections  shall  in  each  case be  accompanied  by a
certificate  of  a  Responsible  Officer  of  the  Borrower  stating  that  such
Projections are based on estimates, information and assumptions believed by such
Responsible  Officer to be reasonable and that such  Responsible  Officer has no
reason to believe  that such  Projections  are  incorrect or  misleading  in any
material respect;

(d) within 50 days after the end of each  fiscal  quarter of each fiscal year of
the Borrower, a narrative discussion and analysis of the consolidated  financial
condition  and results of operations  of the Borrower and its  Subsidiaries  for
such fiscal  quarter and for the period from the  beginning  of the then current
fiscal year to the end of such fiscal quarter, as compared to the portion of the
Projections, as applicable,  covering such periods and to the comparable periods
of the previous year;

(e)  within  five  days  after  the  same are  filed,  copies  of all  financial
statements  and reports which the Borrower or any of its  Subsidiaries  may make
to, or file with,  the  Securities  and Exchange  Commission or any successor or
analogous Governmental Authority of the United States; and

(f) promptly,  such additional financial and other information as any Lender may
from time to time reasonably request.

6.3 Payment of  Obligations.  Pay,  discharge or otherwise  satisfy at or before
maturity or before they become  delinquent or (in the case of trade payables and
obligations  other than for borrowed  money) within 150 days after the due date,
as the case may be, all its  material  obligations  of whatever  nature,  except
where the amount or validity  thereof is currently being contested in good faith
by  appropriate  proceedings  and reserves in conformity  with GAAP with respect
thereto have been provided on the books of the Borrower or its Subsidiaries,  as
the case may be.

6.4 Conduct of Business and  Maintenance of Existence,  etc. (_) (a) Continue to
engage  in  business  of the  same  general  type as now  conducted  by it,  (b)
preserve, renew and keep in full force and effect its existence and (c) take all
commercially reasonable action to maintain all rights, privileges and franchises
necessary or desirable in the normal  conduct of its business,  except,  in each
case in clauses  (a),  (b) and (c) above,  as  otherwise  permitted  pursuant to
Section  7.5 and  except,  in the case of clause (c) above,  to the extent  that
failure to do so could not  reasonably  be expected  to have a Material  Adverse
Effect; and (d) comply with all Contractual  Obligations and Requirements of Law
except  to the  extent  that  failure  to comply  therewith  could  not,  in the
aggregate, reasonably be expected to have a Material Adverse Effect.

6.5 Maintenance of Property;  Insurance.  (a) Keep all material  property useful
and necessary in its business in good working order and condition, ordinary wear
and tear excepted;  (b) maintain with financially sound and reputable  insurance
companies  insurance on all its property in at least such amounts and against at
least such risks (but  including in any event general  liability) as are usually
insured  against in the same general area by companies  engaged in the same or a
similar  business;  and (c) furnish to each Lender,  upon written request,  full
information as to the insurance carried.

6.6 Inspection of Property; Books and Records; Discussions. Keep proper books of
records and account in which full,  true and correct  entries in conformity with
GAAP or, in the case of  Foreign  Subsidiaries,  in  conformity  with  generally
accepted accounting  principles in effect in the jurisdiction where such Foreign
Subsidiary  is located  at such time and,  in the case of the  Borrower  and its
Domestic Subsidiaries, all Requirements of Law shall be made of all dealings and
transactions  in relation to its business and  activities;  and upon  reasonable
notice  permit  representatives  of any Lender to visit and  inspect  any of its
properties  and examine and make  abstracts from any of its books and records at
any reasonable time and as often as may reasonably be desired and to discuss the
business,  operations,  properties  and  financial  and other  condition  of the
Borrower  and its  Subsidiaries  with senior  officers of the  Borrower  and its
Subsidiaries and with its independent certified public accountants.

6.7 Notices. Promptly give notice to the Administrative Agent of:

(a) the occurrence of any Default or Event of Default;

(b) any (i) default or event of default under any Contractual  Obligation of the
Borrower  or  any of its  Subsidiaries  or  (ii)  litigation,  investigation  or
proceeding  which  may  exist at any time  between  the  Borrower  or any of its
Subsidiaries and any Governmental Authority,  which in either case, if not cured
or if adversely determined,  as the case may be, could reasonably be expected to
have a Material Adverse Effect;

(c) the  following  events,  as soon as possible and in any event within 30 days
after  the  Borrower  or any of its  Subsidiaries  knows or has  reason  to know
thereof:  (i) the occurrence or expected occurrence of any Reportable Event with
respect to any Plan, a failure to make any required  contribution  in a material
amount to a Plan, the creation of any Lien in a material  amount in favor of the
PBGC or a Plan or any withdrawal  from, or the  termination,  Reorganization  or
Insolvency of, any Multiemployer  Plan or (ii) the institution of proceedings or
the  taking of any  other  action by the PBGC or the  Borrower  or any  Commonly
Controlled Entity or any Multiemployer Plan with respect to the withdrawal from,
or the terminating, Reorganization or Insolvency of, any Plan;

(d) (i) any  release or  discharge  by the  Borrower  or any  Subsidiary  of any
Materials of Environmental  Concern required to be reported under  Environmental
Laws to any Governmental  Authority which could reasonably be expected to result
in the  assessment  or  payment  of a Material  Environmental  Amount;  (ii) any
condition,  circumstance,  occurrence or event that could reasonably be expected
to result in the assessment or payment of a Material  Environmental  Amount,  or
could result in the  imposition of any Lien or other  restriction  on the title,
ownership or transferability of any Mortgaged Property;  and (iii) any action to
be taken by the Borrower or any Subsidiary that could  reasonably be expected to
subject  the  Borrower  or any  Subsidiary  to the  assessment  or  payment of a
Material Environmental Amount; and

(e) any  development  or event  which  could  reasonably  be  expected to have a
Material Adverse Effect.

Each notice  pursuant to this Section 6.7 shall be accompanied by a statement of
a Responsible  Officer of the Borrower  setting forth details of the  occurrence
referred  to therein  and stating  what  action the  Borrower or the  applicable
Subsidiary proposes to take with respect thereto.

6.8 Environmental Laws.

(a)(i) Comply with all Environmental  Laws applicable to it, and obtain,  comply
with and maintain any and all Environmental Permits necessary for its operations
as conducted and as planned; and (ii) take all reasonable efforts to ensure that
all of its tenants, subtenants, contractors, subcontractors, and invitees comply
with all applicable Environmental Laws, and obtain, comply with and maintain any
and all Environmental Permits,  applicable to any of them insofar as any failure
to so comply,  obtain or maintain  reasonably  could be  expected  to  adversely
affect the  Borrower or any of its  Subsidiaries.  For  purposes of this 6.8(a),
noncompliance  by  the  Borrower  with  any  applicable   Environmental  Law  or
Environmental Permit shall be deemed not to constitute a breach of this covenant
provided  that,  upon  learning of any actual or  suspected  noncompliance,  the
Borrower shall undertake reasonable efforts to achieve compliance,  and provided
further that, in any case, such non-compliance, and any other noncompliance with
applicable  Environmental  Law,  individually  or in the  aggregate,  could  not
reasonably be expected to give rise to a Material Adverse Effect.

(b) Promptly  comply in all material  respects with all orders and directives of
all  Governmental  Authorities  directed to the  Borrower or any of its Domestic
Subsidiaries regarding Environmental Laws, other than such orders and directives
or parts  thereof  as are  being  contested  in good  faith  and by  appropriate
proceedings.

(c) Within six months  after the Closing  Date,  complete the  development  of a
program to promote  compliance with and to minimize prudently any liabilities or
potential  liabilities  under any  Environmental Law that may affect Borrower or
any of its Domestic Subsidiaries (the "Environmental Program") and implement the
Environmental  Program upon a reasonable schedule thereafter.  The Environmental
Program  shall be  developed  with the  assistance  of a  reputable  independent
environmental  consulting firm reasonably acceptable to the Administrative Agent
(an "Environmental  Consultant") or a qualified  employee of the Borrower.  Upon
the Administrative Agent's request, a reasonably detailed written description of
the Environmental  Program shall be provided to the Administrative  Agent, after
which, upon the Administrative  Agent's request,  Borrower shall confer with the
Administrative  Agent concerning any questions the Administrative Agent may have
about the Environmental Program.

(d) Prior to acquiring any ownership or leasehold interest in real property,  or
other interest in any real property which in the Borrower's  reasonable judgment
could give rise to significant  liability under any Environmental  Law, obtain a
written environmental assessment report regarding the environmental condition of
such real property by a reputable  independent  environmental  consulting  firm.
Upon the request of the Administrative  Agent, a copy of each such environmental
assessment report shall be delivered to the  Administrative  Agent by the end of
the calendar  quarter in which the acquisition  closed,  together with a list of
all  acquisitions  of  interests  in  real  property  by the  Borrower  and  the
Subsidiaries   in  such   quarter.   Pursuant  to  this  Section   6.8(d),   the
Administrative  Agent  shall  have the  right,  but shall not have any duty,  to
obtain, review or discuss any such report.

(e) Promptly upon the Administrative  Agent's request if there has been an Event
of Default  which has not been fully and timely cured,  permit an  Environmental
Consultant whom the Administrative Agent in its discretion designates to perform
an environmental assessment (including, without limitation: reviewing documents;
interviewing  knowledgeable  persons;  and sampling  and  analyzing  soil,  air,
surface  water,  groundwater,  and/or other media in or about  property owned or
leased by the Borrower,  or on which  operations of the Borrower  otherwise take
place).  Such  environmental  assessment shall be in form,  scope, and substance
reasonably   satisfactory  to  the  Administrative  Agent.  The  Borrower  shall
cooperate fully in the conduct of such environmental  assessment,  and shall pay
the costs of such  environmental  assessment  immediately upon written demand by
the  Administrative  Agent.  Pursuant to this section 6.8(e), the Administrative
Agent  shall have the  right,  but shall not have any duty,  to  request  and/or
obtain such environmental assessment.

6.9 Further Assurances. Upon the request of the Administrative Agent at any time
prior to the Collateral Release Date,  promptly perform or cause to be performed
any and all acts and  execute  or cause  to be  executed  any and all  documents
(including,   without   limitation,   financing   statements  and   continuation
statements)  for filing under the provisions of the Uniform  Commercial  Code or
any other  Requirement of Law which are necessary or advisable in the reasonable
judgment of the Collateral  Agent to maintain in favor of the Collateral  Agent,
for the benefit of the Lenders,  Liens on the Collateral that are duly perfected
in accordance with all applicable Requirements of Law.

6.10  Additional  Collateral.  Unless  the  Collateral  Release  Date shall have
occurred:

(a) With respect to any assets  acquired  after the Closing Date by the Borrower
or any of its Domestic  Subsidiaries that are intended to be subject to the Lien
created by any of the  Security  Documents  but which are not so subject  (other
than any assets  described  in  paragraph  (b),  (c), (d) or (e) of this Section
6.10),  promptly  (and in any event  within 30 days  after  the  acquisition  or
creation  thereof):  (i)  execute  and  deliver  to the  Collateral  Agent  such
amendments  to the  Master  Guarantee  and  Collateral  Agreement  or such other
documents as the Collateral  Agent shall  reasonably deem necessary or advisable
to grant to the Collateral Agent, for the benefit of the Lenders, a Lien on such
assets,  (ii) take all actions  reasonably  necessary or advisable to cause such
Lien to be duly perfected in accordance with all applicable Requirements of Law,
including,  without limitation,  the filing of Uniform Commercial Code financing
statements  in  such  jurisdictions  as  may  be  reasonably  requested  by  the
Collateral  Agent  (provided  that  for  any  Vehicles  that  are  covered  by a
certificate of title, the Borrower shall cause such Lien to be duly perfected in
accordance  with all  applicable  Requirements  of Law  within 90 days after the
acquisition thereof), and (iii) if requested by the Collateral Agent, deliver to
the Collateral  Agent within 30 days of such request legal opinions  relating to
the matters  described  in clauses  (i) and (ii)  immediately  preceding,  which
opinions shall be in form and substance and from counsel reasonably satisfactory
to the Collateral Agent.

(b) With respect to any Person that,  subsequent to the Closing Date,  becomes a
Domestic Subsidiary of the Borrower (including,  without limitation,  any Person
which had previously  been an Excluded  Subsidiary),  promptly (and in any event
within 30 days after the  acquisition  or  creation  thereof):  (i)  execute and
deliver to the Collateral Agent, for the benefit of the Lenders, such amendments
to the Master  Guarantee and Collateral  Agreement as the Collateral Agent shall
deem reasonably necessary or advisable to grant to the Collateral Agent, for the
benefit of the Lenders,  a Lien on the Capital Stock of such Subsidiary which is
owned by the Borrower or any of its Subsidiaries, (ii) deliver to the Collateral
Agent the certificates  representing  such Capital Stock,  together with undated
stock powers duly executed and delivered in blank, (iii) cause such new Domestic
Subsidiary  (A) to  become  a  party  to the  Master  Guarantee  and  Collateral
Agreement,  pursuant to documentation which is in form and substance  reasonably
satisfactory to the Collateral  Agent, and (B) to take all actions  necessary or
advisable  to cause  the Lien  created  by such  security  agreement  to be duly
perfected in accordance  with all  applicable  Requirements  of Law,  including,
without limitation,  the filing of Uniform Commercial Code financing  statements
in such  jurisdictions  as may be reasonably  requested by the Collateral  Agent
(provided that for any Vehicles that are covered by a certificate of title,  the
Borrower  shall  cause such Lien to be duly  perfected  in  accordance  with all
applicable  Requirements of Law within 90 days after the  acquisition  thereof),
and (iv) if requested by the Collateral  Agent,  deliver to the Collateral Agent
within 30 days of such request legal opinions  relating to the matters described
in clauses (i), (ii) and (iii) immediately preceding, which opinions shall be in
form and substance and from counsel  reasonably  satisfactory  to the Collateral
Agent.

(c) With respect to any fee  interest in any real  property  acquired  after the
Closing  Date by the  Borrower  or any of its  Domestic  Subsidiaries  having  a
purchase price (or, if acquired  through a merger or stock  acquisition,  a fair
market value) in excess of $1,000,000, promptly (and in any event within 90 days
after the acquisition thereof) (i) execute and deliver a first priority mortgage
or deed of trust,  as the case may be  (subordinate  only to such  mortgages  or
deeds of  trust  as are  necessary  to  permit  the  Borrower  or such  Domestic
Subsidiary to purchase such real property but subject to such easements,  rights
of way,  restrictions  and other  similar  encumbrances  as such property may be
subject at the time of acquisition),  in favor of the Collateral  Agent, for the
benefit of the  Lenders,  covering  such real  property,  in form and  substance
reasonably  satisfactory to the Collateral Agent, (ii) provide to the Collateral
Agent all necessary  documents  reasonably  requested by the Collateral Agent to
confirm the  Borrower's or its  Subsidiaries'  ownership of such real  property,
(iii) if  requested  by the  Collateral  Agent,  provide  the  Lenders  with any
consents or estoppels  deemed  necessary or advisable by the Collateral Agent in
connection  with such  mortgage or deed of trust,  each of the foregoing in form
and  substance  reasonably  satisfactory  to the  Collateral  Agent  and (iv) if
requested  by the  Collateral  Agent,  deliver  to the  Collateral  Agent  legal
opinions  relating to the matters  described  in the  preceding  clauses (i) and
(iii), which opinions shall be in form and substance and from counsel reasonably
satisfactory to the Collateral Agent. Notwithstanding the foregoing,  compliance
shall not be required  with the  foregoing  provision of this  paragraph  (c) in
respect of any  interest  in real  property  which,  at the time of  acquisition
thereof by the Borrower or its Subsidiary,  is subject to a legal or contractual
restriction  that would  prohibit  the  granting  of a  mortgage  thereon to the
Collateral Agent; provided, that the aggregate book value of real property owned
by the Borrower and its Subsidiaries so subject may not exceed $5,000,000 at any
time.

(d) With respect to any Foreign Subsidiary created or acquired after the Closing
Date by the Borrower or any of its Domestic  Subsidiaries,  promptly (and in any
event within 150 days after the acquisition or creation thereof) (i) execute and
deliver to the  Collateral  Agent such  amendments  to the Master  Guarantee and
Collateral Agreement (or comparable documentation) as the Collateral Agent deems
reasonably necessary or advisable in order to grant to the Collateral Agent, for
the benefit of the Lenders,  a perfected first priority security interest in the
Capital Stock (except for Liens permitted under Section 7.3) of such new Foreign
Subsidiary  which is owned by the Borrower or any of its  Domestic  Subsidiaries
(provided  that in no event shall more than 65% of the Capital Stock of any such
new  Subsidiary  be required to be so pledged),  (ii) deliver to the  Collateral
Agent the certificates  representing  such Capital Stock,  together with undated
stock powers, in blank,  executed and delivered by a duly authorized  officer of
the Borrower or such  Subsidiary,  as the case may be, and (iii) if requested by
the Collateral Agent, deliver to the Collateral Agent legal opinions relating to
the matters  described in the  preceding  clauses (i) and (ii),  which  opinions
shall be in form and substance and from counsel  reasonably  satisfactory to the
Collateral Agent.

(e) With respect to any oil and gas property  acquired after the Closing Date by
the Borrower or any of its Domestic Subsidiaries having a purchase price (or, if
acquired through a merger or stock  acquisition,  a fair market value) in excess
of $1,000,000 and which,  after giving effect to such  acquisition  and assuming
that a perfected  first priority Lien thereon were not granted to the Collateral
Agent would result in the  Collateral  Agent having a perfected  first  priority
Lien on less than 80% in value  (calculated  as provided in Section 4.24) of the
reserves  contained in all of the oil and gas properties of the Borrower and its
Domestic  Subsidiaries,  promptly  (and in any event  within  30 days  after the
acquisition  thereof)  (i)  execute  and  deliver a first  priority  oil and gas
mortgage  (subordinate  only to such oil and gas  mortgages as are  necessary to
permit the Borrower or such  Domestic  Subsidiary  to purchase such property but
subject to such restrictions and other similar encumbrances as such property may
be subject at the time of  acquisition),  in favor of the Collateral  Agent, for
the  benefit of the  Lenders,  covering  such  property,  in form and  substance
reasonably  satisfactory to the Collateral  Agent, and (ii) if  requested by the
Collateral  Agent,  deliver  to the  Collateral  Agent  within  180 days of such
request title opinions relating to the matters described in the preceding clause
reasonably satisfactory to the Collateral Agent.
 
6.11 Post-Closing Matters.

(a) Legal Opinions.  Deliver to the Collateral Agent as promptly as practicable,
but in any event within 90 days after the Closing Date,  such title  opinions in
respect of the Oil and Gas  Properties  as may be  reasonably  requested  by the
Collateral Agent. Such legal opinions shall be in form and substance  reasonably
satisfactory  to the Collateral  Agent and shall cover such matters  incident to
the  transactions  contemplated  by this Agreement as the  Collateral  Agent may
reasonably require.

(b) Vehicles.  Within 90 days after the Closing Date,  deliver to the Collateral
Agent  each  document  (including,   without  limitation,  any  certificates  of
title) required by the Security  Documents or under law or reasonably  requested
by the Collateral  Agent to be delivered to the Collateral Agent or to be filed,
registered or recorded in order to create in favor of the Collateral  Agent, for
the benefit of the Lenders, a perfected Lien on all of the Vehicles covered by a
certificate  of title,  prior and superior in right to any other  Person  (other
than with respect to Liens expressly  permitted by Section 7.3), which documents
shall  be in  proper  form  for  filing,  registration  or  recordation  in each
jurisdiction  in which the filing,  registration  or  recordation  thereof is so
required or requested.

(c) Lien  Searches.  The  Collateral  Agent shall have received the results of a
recent lien search by a Person satisfactory to the Administrative  Agent, of the
Uniform  Commercial Code,  judgment and tax lien filings in each of the relevant
jurisdictions where assets of the all Loan Parties are located,  and such search
shall reveal no material Liens on any of such assets except for Liens  permitted
by Section 7.3. If any Liens not  permitted by Section 7.3 appear as a result of
such lien search, promptly (and in any event within 60 days of completion of the
lien search),  the Borrower shall cause to be filed any  termination  statements
that are reasonably  requested by the Collateral  Agent to be filed with respect
to such unpermitted Liens.

(d) Pledged  Securities;  Stock Powers. The Collateral Agent shall have received
within 60 days of the Closing Date 65% of the Capital Stock of Kenting  Holdings
(Argentina)  S.A.,  an  Argentine  corporation,  pledged  pursuant to the Master
Guarantee  and  Collateral  Agreement,  together with an undated stock power for
such certificate  executed in blank by a duly authorized  officer of the pledgor
thereof.

(e)  Legal  Opinions.  In  connection  with  the  Pledged  Stock of the New Loan
Parties,  the  Administrative  Agent shall have  received  within 60 days of the
Closing Date, with a counterpart for each Lender,  the executed legal opinion of
Jack D.  Loftis,  Jr.,  Esq.,  general  counsel  to the New Loan  Parties or the
executed  legal opinion of a local counsel  satisfactory  to the  Administrative
Agent. Each such legal opinion shall be substantially in the form of Exhibit E-1
hereto and shall cover such matters incident to the transactions contemplated by
this Agreement as the Administrative Agent may reasonably require.

(f) Mortgages.  The Collateral  Agent shall have received  within 60 days of the
Closing Date legal  opinions  from local counsel in respect of the Mortgages and
recording thereof relating to the necessity of amending the terms thereof as may
be reasonably  requested by the Collateral  Agent,  with a counterpart  for each
Lender, and the Collateral Agent shall have received amendments to each Mortgage
the Collateral Agent reasonably deems necessary to amend, executed and delivered
by a duly authorized officer of each party thereto, with a copy for each Lender.

6.12  Authorization of Additional  Shares of Stock. As soon as practicable,  use
its best  efforts to  increase  the number of shares of common  stock  which the
Borrower is authorized to issue under its  certificate  of  incorporation  to an
amount  which would be  sufficient  to allow the Borrower to issue shares of its
common stock to all of the holders of the 1997  Convertible  Subordinated  Notes
upon conversion of all of the 1997 Convertible Subordinated Notes.


                          SECTION 7. NEGATIVE COVENANTS

The Borrower  hereby agrees that, so long as the  Commitments  remain in effect,
any Note or Letter of Credit remains  outstanding and unpaid or any other amount
is owing to any Lender, the Arranger, the Collateral Agent or the Administrative
Agent  hereunder,  the Borrower shall not, and, if applicable,  shall not permit
any of its Subsidiaries to, directly or indirectly:

7.1 Financial Condition Covenants.

(a) Consolidated  Leverage Ratio.  Permit the Consolidated  Leverage Ratio as of
any date set forth below to exceed the ratio set forth below opposite such date:
                                             Consolidated
   Date                                     Leverage Ratio

December 31, 1997                                4.50 to 1.00
March 31, 1998                                   4.50 to 1.00
June 30, 1998                                    4.00 to 1.00
September 30, 1998                               4.00 to 1.00
December 31, 1998                                3.50 to 1.00
March 31, 1999                                   3.50 to 1.00
June 30, 1999                                    3.50 to 1.00
September 30, 1999                               3.50 to 1.00
December 31, 1999                                3.00 to 1.00
March 31, 2000                                   3.00 to 1.00
June 30, 2000                                    3.00 to 1.00
September 30, 2000                               3.00 to 1.00
December 31, 2000                                2.50 to 1.00
March 31, 2001                                   2.50 to 1.00
June 30, 2001                                    2.50 to 1.00
September 30, 2001                               2.50 to 1.00
December 31, 2001                                2.50 to 1.00
March 31, 2002                                   2.50 to 1.00
June 30, 2002                                    2.50 to 1.00
September 30, 2002                               2.50 to 1.00
                                          ====================

(b)  Consolidated  Interest  Coverage Ratio.  Permit the  Consolidated  Interest
Coverage  Ratio  for any  period  of four  consecutive  fiscal  quarters  of the
Borrower  ending  as of any date set  forth  below to be less than the ratio set
forth below opposite such date:

                                             Consolidated
                                               Interest
   Date                                     Coverage Ratio

December 31, 1997                                2.50 to 1.00
March 31, 1998                                   2.50 to 1.00
June 30, 1998                                    3.00 to 1.00
September 30, 1998                               3.00 to 1.00
December 31, 1998                                3.50 to 1.00
March 31, 1999                                   3.50 to 1.00
June 30, 1999                                    4.00 to 1.00
September 30, 1999                               4.00 to 1.00
December 31, 1999                                4.00 to 1.00
March 31, 2000                                   4.00 to 1.00
June 30, 2000                                    4.00 to 1.00
September 30, 2000                               4.00 to 1.00
December 31, 2000                                4.00 to 1.00
March 31, 2001                                   4.00 to 1.00
June 30, 2001                                    4.00 to 1.00
September 30, 2001                               4.00 to 1.00
December 31, 2001                                4.00 to 1.00
March 31, 2002                                   4.00 to 1.00
June 30, 2002                                    4.00 to 1.00
September 30, 2002                               4.00 to 1.00

(c) Consolidated  Senior Leverage Ratio. Permit the Consolidated Senior Leverage
Ratio as of any date set  forth  below to  exceed  the  ratio  set  forth  below
opposite such date:
                                             Consolidated
   Date                                         Senior
                                            Leverage Ratio

December 31, 1997                                2.50 to 1.00
March 31, 1998                                   2.50 to 1.00
June 30, 1998                                    2.50 to 1.00
September 30, 1998                               2.50 to 1.00
December 31, 1998                                2.50 to 1.00
March 31, 1999                                   2.50 to 1.00
June 30, 1999                                    2.50 to 1.00
September 30, 1999                               2.50 to 1.00
December 31, 1999                                2.50 to 1.00
March 31, 2000                                   2.50 to 1.00
June 30, 2000                                    2.50 to 1.00
September 30, 2000                               2.50 to 1.00
December 31, 2000                                2.00 to 1.00
March 31, 2001                                   2.00 to 1.00
June 30, 2001                                    2.00 to 1.00
September 30, 2001                               2.00 to 1.00
December 31, 2001                                2.00 to 1.00
March 31, 2002                                   2.00 to 1.00
June 30, 2002                                    2.00 to 1.00
September 30, 2002                               2.00 to 1.00

(d)  Consolidated  Net Worth.  Permit the Consolidated Net Worth of the Borrower
and its  Subsidiaries to be less than the sum of (i) 85% of the Consolidated Net
Worth of the Borrower and its  Subsidiaries on September 30, 1997, plus (ii) 75%
of Consolidated Net Income of the Borrower and its Subsidiaries (to the extent a
positive  number)  for each fiscal  quarter  completed  after the  Closing  Date
commencing  with the fiscal quarter ending  December 31, 1997, plus (iii) 75% of
the Net Cash  Proceeds of any  offerings or  issuances  of Capital  Stock of the
Borrower or any of its Subsidiaries after the Closing Date, plus (iv) 75% of the
increase in the  Consolidated  Net Worth of the  Borrower  and its  Subsidiaries
resulting from any conversion of the 1997 Convertible Subordinated Notes.

7.2 Limitation on  Indebtedness.  Create,  incur,  assume or suffer to exist any
Indebtedness, except:

(a) Indebtedness of the Borrower under the Loan Documents;

(b)  Indebtedness  (i) of the Borrower to a Wholly Owned  Subsidiary,  (ii) of a
Domestic Wholly Owned Subsidiary to the Borrower or any other Subsidiary,  (iii)
of Servicios to the Borrower or any Subsidiary in an aggregate  principal amount
at any time outstanding not to exceed $5,000,000 in excess of the amount of such
Indebtedness  outstanding  on the date of this Agreement and (iv) of any Foreign
Subsidiary  (other  than  Servicios)  to the  Borrower or any  Subsidiary  in an
aggregate  principal  amount at any time  outstanding  (with respect to all such
Foreign  Subsidiaries of the Borrower) not to exceed  $1,000,000,  provided that
such  Indebtedness  referred  to in  clauses  (iii) and (iv)  hereof,  if to the
Borrower or any  Domestic  Subsidiary,  is  evidenced  by a  promissory  note or
promissory notes which has or have been pledged to the Collateral Agent on terms
and conditions reasonably satisfactory to the Administrative Agent;

(c)  Indebtedness  of the  Borrower  or any  Subsidiary  incurred to finance the
acquisition or construction  of fixed or capital assets  (whether  pursuant to a
loan,  a Financing  Lease or  otherwise)  in an aggregate  principal  amount not
exceeding as to the Borrower and its  Subsidiaries  (i)  $15,000,000 at any time
outstanding minus (ii) the amount of Indebtedness  outstanding under clauses (f)
and (i) of this Section 7.2 and the amount of indebtedness  attributable to sale
and leaseback transactions permitted pursuant to Section 7.12;

(d)  Indebtedness  of the Borrower and its  Subsidiaries  under the  Convertible
Subordinated Debentures and the 1997 Convertible Subordinated Notes;

(e) Indebtedness  outstanding on the date hereof, or incurred hereafter pursuant
to existing commitments or agreements, and, in each case, listed on Schedule 7.2
and any refinancings,  refundings, renewals or extensions thereof not increasing
the principal amount thereof;

(f) Indebtedness of a Person which becomes a Subsidiary after the date hereof in
an  aggregate   principal   amount  at  any  time   outstanding   not  exceeding
(i) $15,000,000,   minus  (ii)  the  sum  of  (A)  the  amount  of  Indebtedness
outstanding  under clauses (c) and (i) of this Section 7.2 and (B) the amount of
indebtedness  attributable to sale and leaseback transactions permitted pursuant
to Section 7.12,  provided that (x) such  Indebtedness  existed at the time such
corporation became a Subsidiary and was not created in anticipation  thereof and
(y) immediately  after giving effect to the  acquisition of such  corporation by
the  Borrower  no  Default  or Event  of  Default  shall  have  occurred  and be
continuing, and any refinancings, refundings, renewals or extensions thereof not
increasing the principal amount thereof.

(g) Indebtedness  constituting deposits to secure the performance of bids, trade
contracts (other than for borrowed money), leases, statutory obligations, surety
and appeal bonds and  performance  bonds and other  obligations of a like nature
that are incurred in the ordinary course of business,  not to exceed  $5,000,000
in the aggregate at any time outstanding;

(h) Indebtedness under Interest Rate Protection  Agreements and Hedge Agreements
entered  into the ordinary  course of business for hedging  purposes and not for
speculative purposes;

(i) Seller Indebtedness in an aggregate principal amount at any time outstanding
not  exceeding  (i)  $15,000,000  minus  (ii)  the  sum of  (A)  the  amount  of
Indebtedness  outstanding under clauses (c) and (f) of this Section 7.2, and any
refinancings,  refundings,  renewals or extensions  thereof not  increasing  the
principal amount thereof and (B) the amount of indebtedness attributable to sale
and leaseback transactions permitted pursuant to Section 7.12;

(j) Indebtedness in the form of Guarantee  Obligations permitted by Section 7.4;
and

(k)  Indebtedness not otherwise  permitted by the foregoing  clauses (a) through
(j) in an aggregate  principal  amount at any time  outstanding of not to exceed
$5,000,000;

7.3 Limitation on Liens. Create,  incur, assume or suffer to exist any Lien upon
any of its  property,  assets  or  revenues,  whether  now  owned  or  hereafter
acquired, except for:

(a) Liens for taxes not yet due or which are being  contested  in good  faith by
appropriate  proceedings,  provided that adequate  reserves with respect thereto
are  maintained on the books of the Borrower or its  Subsidiaries  in conformity
with GAAP;

(b)   carriers',   warehousemen's,   mechanics',   materialmen's,   repairmen's,
landlord's or other like Liens arising in the ordinary  course of business which
are not overdue for a period of more than 180 days or which are being  contested
in good faith by appropriate proceedings and which, in any case, do not encumber
a material amount of the assets of the Borrower and its Subsidiaries;

(c) pledges or deposits in connection with workers'  compensation,  unemployment
insurance and other social security legislation;

(d) deposits to secure the performance of bids,  trade contracts (other than for
borrowed  money),  leases,  statutory  obligations,  surety  and  appeal  bonds,
performance  bonds  and  other  obligations  of a like  nature  incurred  in the
ordinary course of business;

(e)  easements,  rights-of-way,  restrictions  and  other  similar  encumbrances
incurred in the ordinary  course of business  which,  in the aggregate,  are not
substantial in amount and which do not in any case  materially  detract from the
value of the property subject thereto or materially  interfere with the ordinary
conduct of the business of the Borrower or any Subsidiary;

(f) Liens securing  Indebtedness  of the Borrower or any Subsidiary  incurred to
finance the acquisition or  construction  of fixed or capital  assets,  provided
that (i) such Liens shall be created  within 180 days after the  acquisition  or
construction of such fixed or capital assets, (ii) such Liens do not at any time
encumber any property other than the property  financed by such Indebtedness and
the proceeds and products  thereof,  (iii) the principal  amount of Indebtedness
secured  thereby is not  increased  and (iv) the  proceeds  of the  Indebtedness
secured by any such Lien shall at no time exceed 100% of the  original  purchase
price of such property;

(g) Liens created pursuant to the Security Documents;

(h) Liens in  existence  on the date hereof  listed on Schedule 7.3 (i) securing
Indebtedness permitted by Section 7.2(e) provided that no such Lien is spread to
cover any  additional  property  after the Closing  Date and that the  principal
amount  of  Indebtedness  secured  thereby  is not  increased  or (ii)  securing
Indebtedness which is being repaid on the Closing Date, provided that such Liens
shall be released promptly following the Closing Date;

(i) Liens on the property or assets of a corporation  which becomes a Subsidiary
after  the date  hereof  securing  Indebtedness  permitted  by  Section  7.2(f),
provided  that (i) such  Liens  existed  at the time such  corporation  became a
Subsidiary and were not created in anticipation  thereof,  (ii) any such Lien is
not spread to cover any  property or assets of such  corporation  after the time
such  corporation  becomes  a  Subsidiary,  and (iii)  the  principal  amount of
Indebtedness secured thereby is not increased;

(j)  Liens  on  assets  acquired  in a  Permitted  Acquisition  securing  Seller
Indebtedness incurred in connection with such Permitted Acquisition; and

(k) the Permitted Exceptions (as defined in the Mortgages).

7.4  Limitation on Guarantee  Obligations.  Create,  incur,  assume or suffer to
exist any Guarantee Obligation except:

(a)  Guarantee  Obligations  made in the ordinary  course of its business by the
Borrower or any Subsidiary in respect of Indebtedness  and other  obligations of
any of the  Borrower  or any of its  Subsidiaries  which  Indebtedness  or other
obligations are otherwise not prohibited under this Agreement;

(b) the  Guarantee  Obligations  of the  Loan  Parties  pursuant  to the  Master
Guarantee and Collateral Agreement;

(c) the Guarantee  Obligations  of the  Subsidiaries  of the Borrower  under the
Indenture and the 1997 Indenture; and

(d)  Guarantee   Obligations  (in  respect  of  obligations   not   constituting
Indebtedness)  arising  under  agreements  entered  into by the  Borrower or any
Subsidiary in the ordinary course of business.

7.5 Limitation on Fundamental Changes.  Enter into any merger,  consolidation or
amalgamation,   or  liquidate,  wind  up  or  dissolve  itself  (or  suffer  any
liquidation  or  dissolution),  or convey,  sell,  lease,  assign,  transfer  or
otherwise  dispose of, all or  substantially  all of its  property,  business or
assets,  or make  any  material  change  in its  present  method  of  conducting
business, except:

(a) any  Subsidiary  of the Borrower may be merged or combined  with or into the
Borrower  (provided  that the  Borrower  shall be the  continuing  or  surviving
corporation)  or with or into  any  one or  more  Subsidiaries  of the  Borrower
provided  that in the  case of any such  transaction  involving  a Wholly  Owned
Subsidiary,  such Wholly Owned  Subsidiary  shall be the continuing or surviving
corporation;

(b) any Subsidiary may be dissolved,  liquidated or wound up or may sell, lease,
assign,  transfer  or  otherwise  dispose  of any or  all  of its  assets  (upon
voluntary  liquidation  or otherwise)  to Borrower or any Domestic  Wholly Owned
Subsidiary of the Borrower,  and the Borrower may sell, lease, assign,  transfer
or otherwise  dispose of any or all of its assets to any wholly owned Subsidiary
of the  Borrower  which  is a  party  to the  Master  Guarantee  and  Collateral
Agreement; and

(c) any Subsidiary may sell, lease,  transfer or otherwise dispose of any or all
of its assets so long as (i) such  transaction  does not violate Section 7.6 and
(ii) the Borrower complies with the provisions of Section 2.9(c) with respect to
such transaction.

7.6  Limitation on Sale of Assets.  Convey,  sell,  lease,  assign,  transfer or
otherwise dispose of any of its property, business or assets (including, without
limitation, receivables and leasehold interests), whether now owned or hereafter
acquired,  or, in the case of any Subsidiary of the Borrower,  issue or sell any
shares of such Subsidiary's  Capital Stock to any Person other than the Borrower
or any Domestic Wholly Owned Subsidiary of the Borrower, except:

(a) the sale or other  disposition  of any  property in the  ordinary  course of
business,  including  obsolete or worn out  property,  provided that (other than
inventory and light vehicles) the aggregate proceeds received from all assets so
sold or disposed  of in any fiscal  year shall not exceed 10% of the  Borrower's
Consolidated Net Worth as of the end of the immediately preceding fiscal year;

(b) the sale of inventory and light vehicles in the ordinary course of business;

(c) as permitted by Section 7.5(b); and

(d) the sale of Odessa, provided that (i) the Consolidated Leverage Ratio, after
giving pro forma effect to such  disposition and repayment of Indebtedness  paid
or to be paid in connection with such disposition (including Loans paid or to be
paid  pursuant to Section  2.7),  does not exceed 3.75 to 1.00 and (ii) Odessa's
Proved  Reserves  are no  greater  than 65 billion  cubic  feet of  natural  gas
equivalent (the "Significant Disposition").

To the extent the Required Lenders waive the provisions of this Section 7.6 with
respect to the sale of any Collateral, or any Collateral is sold as permitted by
this Section 7.6,  such  Collateral in each case shall be sold free and clear of
the Liens in favor of the  Collateral  Agent created by the Security  Documents,
and the  Collateral  Agent shall take such  actions as it deems  appropriate  in
connection  therewith or may be reasonably requested by the Borrower to evidence
such Lien release, in each case at the Borrower's expense.

7.7 Limitation on Restricted  Payments.  Declare or pay any dividend (other than
dividends payable solely in common stock of the Person making such dividend) on,
or make any  payment on account  of, or set apart  assets for a sinking or other
analogous fund for, the purchase,  redemption,  defeasance,  retirement or other
acquisition  of,  any shares of any class of Capital  Stock  (including  but not
limited to in respect of any preferred  Capital Stock  outstanding  or dividends
accumulated  thereon  on  the  Closing  Date)  of  the  Borrower  or  any of its
Subsidiaries  or any warrants or options to purchase  any such Capital  Stock or
any of the Convertible  Subordinated Debentures or 1997 Convertible Subordinated
Notes, whether now or hereafter  outstanding,  or make any other distribution in
respect thereof or purchase any thereof, either directly or indirectly,  whether
in cash or property or in obligations of the Borrower or any Subsidiary,  except
that the Borrower (a) may make open market  purchases of its outstanding  common
stock in an aggregate amount during the term of this Agreement not to exceed (i)
$10,000,000,  while the Consolidated Leverage Ratio is less than 3.75 to 1.0 but
greater than or equal to 2.50 to 1.0 and (ii) $25,000,000 (including any amounts
expended pursuant to clause (i)), while the Consolidated  Leverage Ratio is less
than 2.50 to 1.0, (b) may (i) make scheduled  payments of interest in respect of
the Convertible  Subordinated  Debentures and the 1997 Convertible  Subordinated
Notes,   and  (ii)  if  permitted  by  Section  7.10,   redeem  the  Convertible
Subordinated  Debentures  after at  least  90% of the  Convertible  Subordinated
Debentures have been converted or redeem the 1997 Convertible Subordinated Notes
after  at  least  90% of the  1997  Convertible  Subordinated  Notes  have  been
converted,  (c) may make cash  payments  required  pursuant to Sections 11.1 and
11.3  of the  Indenture  in  connection  with  conversions  of  the  Convertible
Subordinated Debentures or Section 10.3 of the 1997 Indenture in connection with
conversions of the 1997 Convertible  Subordinated Notes and, (d) if the Borrower
is not yet authorized to issue a sufficient number of shares of its common stock
to allow  conversion  into  common  stock of all 1997  Convertible  Subordinated
Notes,  the Borrower may make cash  payments to holders of the 1997  Convertible
Subordinated Notes in connection with the conversion thereof,  provided that (i)
no more  than  40% of the  aggregate  consideration  to any  holder  of the 1997
Convertible  Subordinated  Notes upon  conversion  thereof may be in cash,  (ii)
after  giving  effect to such  payment  and  conversion,  no Default or Event of
Default  shall be  continuing  and (iii) after  giving pro forma  effect to such
payment  and  conversion  as if it had  occurred  on the  last  day of the  most
recently ended fiscal quarter, the Consolidated  Leverage Ratio would not exceed
2.50 to 1.00.  Notwithstanding the foregoing, any Subsidiary of the Borrower may
pay  dividends  and other  distributions  to the Borrower and  Servicios may pay
dividends to its shareholders.

7.8  Limitation  on  Capital  Expenditures.  Make or commit to make any  Capital
Expenditure  except for  expenditures  in the  ordinary  course of business  not
exceeding,  in the aggregate for the Borrower and its Subsidiaries during any of
the fiscal years of the Borrower set forth below,  an amount equal to the sum of
(i) the amount set forth below opposite such fiscal year plus (ii) an additional
amount for any Person or business  unit  acquired by the Borrower in a Permitted
Acquisition  since the Closing Date, such amount being  calculated as 10% of the
net revenues,  calculated  in  accordance  with GAAP, of such Person or business
unit during such fiscal year (or, if such Person or business  unit was  acquired
after the  beginning of such fiscal year,  such revenues for the portion of such
fiscal  year  during  which  such  Person  or  business  unit  was  owned by the
Borrower):

                  Fiscal Year Ending                          Amount

                  1998                                        $50,000,000
                  1999                                        $55,000,000
                  2000                                        $55,000,000
                  2001                                        $60,000,000
                  2002                                        $65,000,000

Any amount  permitted  by the  foregoing  provision  to be  expended  as Capital
Expenditures  in any fiscal  year and not so  expended  may be carried  over for
expenditure in the immediately succeeding fiscal year.

7.9  Limitation  on  Investments,  Loans and Advances.  Make any advance,  loan,
extension of credit or capital  contribution  to, or purchase any stock,  bonds,
notes,  debentures or other securities of or any assets  constituting a business
unit of, or make any other investment in, any Person, except:

(a) extensions of trade credit in the ordinary course of business;

(b) investments in Cash Equivalents;

(c) Permitted Acquisitions;

(d)  loans by the  Borrower  or any  Subsidiary  to  Servicios  in an  aggregate
principal  amount at any time  outstanding  not to  exceed  the  amount  thereof
outstanding on the date of this Agreement plus $5,000,000;

(e) as permitted by subsection 7.2(b)(iv);

(f)  investments  by the  Borrower in a Domestic  Wholly  Owned  Subsidiary  and
investments by any Subsidiary in the Borrower and in one or more Domestic Wholly
Owned Subsidiaries;

(g) expense accounts for, and other expense advances to, its directors, officers
and employees in the ordinary course of business;

(h) loans and advances to its officers and employees in an aggregate  amount not
to exceed $5,000,000 at any time outstanding;

(i) the Borrower's purchase or redemption of its own Capital Stock to the extent
permitted by Section 7.7;

(j) current trade and customer accounts  receivable that are for goods furnished
or services  rendered in the ordinary course of business and that are payable in
accordance with Borrower's or any Subsidiary's customary trade terms;

(k) Interest  Rate  Protection  Agreements  to the extent  permitted  under this
Agreement,  and Hedge Agreements entered into in the ordinary course of business
for hedging purposes and not for speculative purposes;

(l) the Borrower may  repurchase  its capital  stock and/or  options to purchase
such stock held by  directors,  officers  and  employees  of the Borrower or any
Subsidiary  upon  the  death,  disability,  retirement  or  termination  of such
directors,  officers or employees or the exercise of such  options,  or from the
shareholders  of  Borrower  so long  as the  purpose  is to  acquire  stock  for
reissuance to new employees of Borrower and its Subsidiaries; provided, that the
amount expended for such purposes shall not exceed $1,000,000 in any fiscal year
or $2,500,000 while this Agreement is in effect;

(m) the Borrower and its Subsidiaries may acquire and own investments (including
Indebtedness and other  obligations)  received in connection with the bankruptcy
or  reorganization  of suppliers  and  customers and in settlement of delinquent
obligations of, and other disputes with,  customers and suppliers arising in the
ordinary course of business;

(n) investments acquired by the Borrower and its Subsidiaries in connection with
Permitted Acquisitions; and

(o)  the  Borrower's  current  investment  in  the  Argent  Classic  Convertible
Arbitrage Fund L.P.

7.10 Limitation on Optional  Payments and  Modifications of Debt Instruments and
Organizational  Documentation,  etc. (a) Make any optional payment or prepayment
on or redemption or purchase of any material Indebtedness (other than the Loans)
or preferred  Capital  Stock  including,  without  limitation,  the  Convertible
Subordinated Debentures and the 1997 Convertible  Subordinated Notes, (b) amend,
modify or change,  or consent or agree to any amendment,  modification or change
to any of the terms of any such  Indebtedness  or preferred  Capital Stock which
would be  materially  adverse to  Lenders or (c) amend,  modify or change in any
material respect, or consent or agree to any amendment,  modification, or change
in  any  material  respect  to  the  terms  of  any  of  its  capitalization  or
organizational  documents  (including  but  not  limited  to in  respect  of any
preferred Capital Stock of any Loan Party) or a material contract, to the extent
such amendment,  modification  or change could  reasonably be expected to have a
Material  Adverse  Effect,  except that,  after 90% of the original  outstanding
principal amount of Convertible Subordinated Debentures have been converted into
common stock of the  Borrower,  the Borrower may, at any time when no Default or
Event of  Default  has  occurred  and is  continuing,  repurchase  or redeem the
remaining  outstanding  Convertible  Subordinated  Debentures  or  repurchase or
redeem the remaining  outstanding 1997 Convertible  Subordinated Notes; provided
that the Borrower may not  repurchase  or redeem such  Convertible  Subordinated
Debentures at any time when the Consolidated  Leverage Ratio is or, after giving
effect to such repurchase or redemption, would be, greater than 3.75.

7.11 Limitation on Transactions  with  Affiliates.  Enter into any  transaction,
including, without limitation, any purchase, sale, lease or exchange of property
or the rendering of any service,  with any  Affiliate  (other than the Borrower)
unless such  transaction  (a) is otherwise  permitted under this Agreement,  and
(b) is upon fair and reasonable  terms no less favorable to the Borrower or such
Subsidiary,  as the case may be,  than it would  obtain  in a  comparable  arm's
length transaction with a Person which is not an Affiliate;  provided,  that any
such  transaction  involving more than $5,000,000 must be approved by a majority
of the disinterested members of the Borrower's Board of Directors.

7.12  Limitation on Sales and Leasebacks.  Enter into any  arrangement  with any
Person  providing for the leasing by the Borrower or any of its  Subsidiaries of
real or personal  property which has been or is to be sold or transferred by the
Borrower or such  Subsidiary to such Person or to any other Person to whom funds
have been or are to be advanced by such Person on the security of such  property
or rental  obligations  of the  Borrower or such  Subsidiary,  if,  after giving
effect  thereto,  the amount of all  indebtedness  attributable  to transactions
consummated  pursuant  to this  Section  7.12,  plus the amount of  Indebtedness
outstanding  pursuant to clause (c),  (f) and (i) of Section  7.2,  would exceed
$15,000,000.

7.13  Limitation  on Changes  in Fiscal  Year.  Permit  the  fiscal  year of the
Borrower to end on a day other than June 30.

7.14  Limitation  on  Negative  Pledge  Clauses.  Enter into with any Person any
agreement,  other than (a) this  Agreement and the other Loan  Documents and (b)
any industrial revenue bonds, purchase money Liens or Financing Leases permitted
by this Agreement (in which cases,  any prohibition or limitation  shall only be
effective  against the assets  financed  thereby) which  prohibits or limits the
ability of the Borrower or any of its Subsidiaries to create,  incur,  assume or
suffer to exist any Lien upon any of its property,  assets or revenues,  whether
now owned or hereafter acquired.

7.15 Limitation on Lines of Business.  Enter into any business,  either directly
or through any Subsidiary, except for those businesses in which the Borrower and
its Subsidiaries are engaged on the date of this Agreement or which are directly
related thereto including any business in the oil and gas well service industry.

7.16 Limitation on Consolidated Lease Expense. Permit Consolidated Lease Expense
for any fiscal year of the Borrower and its Subsidiaries to exceed $20,000,000.



                          SECTION 8. EVENTS OF DEFAULT

If any of the following events shall occur and be continuing:

(a) The Borrower  shall fail to pay any  principal of any Loan or  Reimbursement
Obligation when due in accordance  with the terms hereof;  or the Borrower shall
fail to pay any interest on any Loan or Reimbursement  Obligation,  or any other
amount  payable  hereunder or under any other Loan  Document,  within three days
after any such interest or other amount becomes due in accordance with the terms
hereof; or

(b) Any  representation  or warranty  made or deemed made by the Borrower or any
other Loan Party  herein or in any other Loan  Document or which is contained in
any certificate, document or financial or other statement furnished by it at any
time under or in connection  with this Agreement or any such other Loan Document
shall prove to have been incorrect in any material  respect on or as of the date
made or deemed made; or

(c) The  Borrower or any other Loan Party  shall  default in the  observance  or
performance of any agreement contained in Section 7; or

(d) The  Borrower or any other Loan Party  shall  default in the  observance  or
performance of any other agreement contained in this Agreement or any other Loan
Document  (other than as provided in paragraphs  (a) through (c) of this Section
8), and such default shall continue unremedied for a period of 30 days; or

(e) The  Borrower  or any of its  Subsidiaries  shall (i)  default in making any
payment of any principal of any Indebtedness (including, without limitation, any
Guarantee  Obligation) or Interest Rate Protection  Agreement  Obligation on the
scheduled or original due date with respect  thereto;  or (ii) default in making
any payment of any interest on any such Indebtedness beyond the period of grace,
if any, provided in the instrument or agreement under which such Indebtedness or
Interest Rate Protection  Agreement  Obligation was created; or (iii) default in
the observance or performance  of any other  agreement or condition  relating to
any such  Indebtedness  or Interest  Rate  Protection  Agreement  Obligation  or
contained  in any  instrument  or  agreement  evidencing,  securing  or relating
thereto,  or any other event shall occur or condition exist, the effect of which
default  or other  event or  condition  is to cause,  or to permit the holder or
beneficiary of such Indebtedness (or a trustee or agent on behalf of such holder
or  beneficiary)  to  cause,  with  the  giving  of  notice  if  required,  such
Indebtedness  to become due prior to its stated  maturity or (in the case of any
such  Indebtedness   constituting  a  Guarantee   Obligation  or  Interest  Rate
Protection  Agreement  Obligation) to become  payable;  provided that a default,
event or condition  described in clause (i), (ii) or (iii) of this paragraph (e)
shall  not at any time  constitute  an Event of  Default  under  this  Agreement
unless,  at such time,  one or more  defaults,  events or conditions of the type
described  in  clauses  (i),  (ii) and (iii) of this  paragraph  (e) shall  have
occurred  and be  continuing  with  respect  to  Indebtedness  and/or  Guarantee
Obligations  and/or  Interest  Rate  Protection  Agreement  Obligations  of  the
Borrower and its Subsidiaries the outstanding  principal amount of which exceeds
in the aggregate $1,000,000; or

(f) (i) The Borrower or any of its  Subsidiaries  (other than  Servicios)  shall
commence any case,  proceeding  or other action (A) under any existing or future
law  of  any  jurisdiction,   domestic  or  foreign,   relating  to  bankruptcy,
insolvency,  reorganization  or relief of debtors,  seeking to have an order for
relief  entered  with respect to it, or seeking to  adjudicate  it a bankrupt or
insolvent,  or  seeking  reorganization,  arrangement,  adjustment,  winding-up,
liquidation,  dissolution, composition or other relief with respect to it or its
debts, or (B) seeking appointment of a receiver, trustee, custodian, conservator
or  other  similar  official  for it or for all or any  substantial  part of its
assets, or the Borrower or any of its Subsidiaries  (other than Servicios) shall
make a general assignment for the benefit of its creditors;  or (ii) there shall
be  commenced  against  the  Borrower  or any of its  Subsidiaries  (other  than
Servicios)  any case,  proceeding  or other  action of a nature  referred  to in
clause  (i) above  which (A)  results in the entry of an order for relief or any
such  adjudication  or appointment or (B) remains  undismissed,  undischarged or
unbonded for a period of 60 days; or (iii) there shall be commenced  against the
Borrower or any of its Subsidiaries (other than Servicios) any case,  proceeding
or  other  action  seeking  issuance  of a  warrant  of  attachment,  execution,
distraint or similar process  against all or any substantial  part of its assets
which  results in the entry of an order for any such relief which shall not have
been vacated, discharged, or stayed or bonded pending appeal within 60 days from
the entry thereof;  or (iv) the Borrower or any of its Subsidiaries  (other than
Servicios)  shall take any action in  furtherance  of, or indicating its consent
to,  approval of, or  acquiescence  in, any of the acts set forth in clause (i),
(ii), or (iii) above; or (v) the Borrower or any of its Subsidiaries (other than
Servicios) shall generally not, or shall be unable to, or shall admit in writing
its inability to, pay its debts as they become due; or

(g) (i) Any Person shall engage in any "prohibited  transaction"  (as defined in
Section 406 of ERISA or  Section 4975  of the Code) involving any Plan, (ii) any
"accumulated  funding deficiency" (as defined in Section 302 of ERISA),  whether
or not waived,  shall exist with respect to any Plan or any Lien in favor of the
PBGC or a Plan  shall  arise on the  assets  of any Loan  Party or any  Commonly
Controlled  Entity,  (iii) a  Reportable  Event shall occur with  respect to, or
proceedings  shall commence to have a trustee  appointed,  or a trustee shall be
appointed,  to administer  or to  terminate,  any Single  Employer  Plan,  which
Reportable  Event or commencement of proceedings or appointment of a trustee is,
in the  reasonable  opinion  of the  Required  Lenders,  likely to result in the
termination  of such Plan for  purposes  of Title IV of ERISA,  (iv) any  Single
Employer Plan shall  terminate  for purposes of Title IV of ERISA,  (v) any Loan
Party or any Commonly  Controlled Entity shall, or in the reasonable  opinion of
the Required  Lenders is likely to, incur any  liability  in  connection  with a
withdrawal from, or the Insolvency or Reorganization of, a Multiemployer Plan or
(vi) any other event or  condition  shall occur or exist with respect to a Plan;
and in each case in clauses (i) through  (vi)  above,  such event or  condition,
together with all other such events or conditions,  if any,  could,  in the sole
judgment  of the  Required  Lenders,  reasonably  be expected to have a Material
Adverse Effect; or

(h) One or more  judgments or decrees  shall be entered  against the Borrower or
any of its  Subsidiaries  (other than  Servicios)  involving in the  aggregate a
liability  (not paid or fully covered by  insurance) of $2,000,000 or more,  and
all such judgments or decrees shall not have been vacated, discharged, stayed or
bonded pending appeal within 60 days from the entry thereof; or

(i) Prior to the Collateral  Release Date, any of the Security  Documents  shall
cease, for any reason,  to be in full force and effect, or any Loan Party or any
Affiliate of any Loan Party shall so assert, or any material Lien created by any
of the Security  Documents  shall cease to be enforceable and of the same effect
and priority purported to be created thereby; or

(j) Any Change of Control shall occur;

then, and in any such event, (A) if such event is an Event of Default  specified
in clause  (i) or (ii) of  paragraph  (f) above with  respect  to the  Borrower,
automatically  the  Commitments  shall  immediately   terminate  and  the  Loans
hereunder (with accrued interest thereon) and all other amounts owing under this
Agreement  and the other Loan  Documents  (including,  without  limitation,  all
amounts  of L/C  Obligations,  whether  or not  the  beneficiaries  of the  then
outstanding  Letters  of Credit  shall have  presented  the  documents  required
thereunder) shall immediately  become due and payable,  and (B) if such event is
any other  Event of  Default,  either or both of the  following  actions  may be
taken: (i) with the consent of the Required Lenders,  the  Administrative  Agent
may, or upon the  request of the  Required  Lenders,  the  Administrative  Agent
shall,  by notice to the  Borrower  declare  the  Commitments  to be  terminated
forthwith,  whereupon the Commitments shall immediately terminate; and (ii) with
the consent of the Required Lenders,  the Administrative  Agent may, or upon the
request of the Required Lenders,  the  Administrative  Agent shall, by notice to
the Borrower,  declare the Loans hereunder (with accrued  interest  thereon) and
all other  amounts  owing  under this  Agreement  and the other  Loan  Documents
(including,  without limitation, all amounts of L/C Obligations,  whether or not
the beneficiaries of the then outstanding Letters of Credit shall have presented
the documents required  thereunder) to be due and payable  forthwith,  whereupon
the same shall immediately become due and payable.

With  respect to all Letters of Credit  with  respect to which  presentment  for
honor shall not have  occurred at the time of an  acceleration  pursuant to this
paragraph,  the Borrower shall at such time deposit in a cash collateral account
opened by the Administrative Agent an amount equal to the aggregate then undrawn
and  unexpired  amount of such  Letters  of  Credit.  Amounts  held in such cash
collateral account shall be applied by the  Administrative  Agent to the payment
of drafts drawn under such  Letters of Credit,  and the unused  portion  thereof
after all such Letters of Credit shall have expired or been fully drawn upon, if
any, shall be applied to repay other  obligations of the Borrower  hereunder and
under the other Loan  Documents.  After all such  Letters  of Credit  shall have
expired or been fully drawn upon, all Reimbursement  Obligations shall have been
satisfied  and all other  obligations  of the Borrower  hereunder  and under the
other Loan Documents shall have been paid in full, the balance,  if any, in such
cash collateral  account shall be returned to the Borrower (or such other Person
as may be lawfully entitled thereto). Except as expressly provided above in this
Section,  presentment,  demand,  protest  and all other  notices of any kind are
hereby expressly waived.



                              SECTION 9. THE AGENTS

9.1  Appointment.  Each Lender hereby  irrevocably  designates  and appoints the
Agents as the  agents of such  Lender  under this  Agreement  and the other Loan
Documents,  and each Lender irrevocably authorizes each Agent, in such capacity,
to take such action on its behalf under the provisions of this Agreement and the
other Loan  Documents and to exercise such powers and perform such duties as are
expressly  delegated to such Agent by the terms of this  Agreement and the other
Loan  Documents,  together with such other powers as are  reasonably  incidental
thereto.  Notwithstanding  any  provision  to the  contrary  elsewhere  in  this
Agreement,  no Agent  shall have any duties or  responsibilities,  except  those
expressly set forth herein, or any fiduciary  relationship with any Lender,  and
no  implied  covenants,  functions,  responsibilities,  duties,  obligations  or
liabilities  shall be read into this  Agreement  or any other Loan  Document  or
otherwise exist against any Agent.

9.2  Delegation  of Duties.  Each Agent may execute any of its duties under this
Agreement and the other Loan Documents by or through agents or attorneys-in-fact
and shall be entitled to advice of counsel  concerning all matters pertaining to
such duties.  No Agent shall be responsible  for the negligence or misconduct of
any agents or attorneys in-fact selected by it with reasonable care.

9.3  Exculpatory  Provisions.  Neither  the  Agents  nor any of their  officers,
directors,  employees,  agents,  attorneys-in-fact  or  Affiliates  shall be (i)
liable for any action lawfully taken or omitted to be taken by it or such Person
under or in connection with this Agreement or any other Loan Document (except to
the  extent  that any of the  foregoing  are found by a final and  nonappealable
decision of a court of competent  jurisdiction to have resulted from its or such
Person's own gross negligence or willful  misconduct) or (ii) responsible in any
manner to any of the Lenders for any recitals,  statements,  representations  or
warranties  made by any Loan  Party or any  officer  thereof  contained  in this
Agreement or any other Loan Document or in any certificate, report, statement or
other document referred to or provided for in, or received by any Agent under or
in connection  with, this Agreement or any other Loan Document or for the value,
validity,  effectiveness,  genuineness,  enforceability  or  sufficiency of this
Agreement or the Notes or any other Loan Document or for any failure of any Loan
Party a party thereto to perform its  obligations  hereunder or  thereunder.  No
Agent shall be under any  obligation to any Lender to ascertain or to inquire as
to the  observance  or  performance  of any of the  agreements  contained in, or
conditions  of, this  Agreement  or any other Loan  Document,  or to inspect the
properties, books or records of any Loan Party.

9.4 Reliance by Agents. Each Agent shall be entitled to rely, and shall be fully
protected  in relying,  upon any Note,  writing,  resolution,  notice,  consent,
certificate,  affidavit, letter, telecopy, telex or teletype message, statement,
order or other document or conversation believed by it to be genuine and correct
and to have been signed,  sent or made by the proper  Person or Persons and upon
advice and statements of legal counsel (including,  without limitation,  counsel
to the Borrower),  independent  accountants  and other experts  selected by such
Agent.  The Agents may deem and treat the payee of any Note as the owner thereof
for all purposes unless a written notice of assignment,  negotiation or transfer
thereof shall have been filed with the Administrative Agent. Each Agent shall be
fully  justified in failing or refusing to take any action under this  Agreement
or any  other  Loan  Document  unless  it shall  first  receive  such  advice or
concurrence of the Required Lenders (or, if so specified by this Agreement,  all
Lenders)  as it deems  appropriate  or it  shall  first  be  indemnified  to its
satisfaction  by the Lenders against any and all liability and expense which may
be incurred  by it by reason of taking or  continuing  to take any such  action,
provided that in no event shall the Lenders be obligated to indemnify the Agents
for any amounts described in the proviso to Section 9.7. Each Agent shall in all
cases be fully  protected in acting,  or in refraining  from acting,  under this
Agreement  and the other  Loan  Documents  in  accordance  with a request of the
Required Lenders (or, if so specified by this Agreement,  all Lenders), and such
request and any action taken or failure to act pursuant thereto shall be binding
upon all the Lenders and all future holders of the Notes.

9.5 Notice of Default.  No Agent shall be deemed to have  knowledge or notice of
the  occurrence of any Default or Event of Default  hereunder  unless such Agent
has  received  written  notice from a Lender or the  Borrower  referring to this
Agreement,  describing  such  Default or Event of Default and stating  that such
notice is a "notice  of  default".  In the event that the  Administrative  Agent
receives such a notice,  the  Administrative  Agent shall give notice thereof to
the Lenders.  The Administrative  Agent and the Collateral Agent shall take such
action with respect to such  Default or Event of Default as shall be  reasonably
directed by the Required  Lenders (or, if so  specified by this  Agreement,  all
Lenders);  provided  that  unless  and  until  the  Administrative  Agent or the
Collateral Agent shall have received such directions,  the Administrative  Agent
or the Collateral Agent may (but shall not be obligated to) take such action, or
refrain  from  taking  such  action,  with  respect to such  Default or Event of
Default as it shall deem advisable in the best interests of the Lenders.

9.6 Non-Reliance on Agents and Other Lenders. Each Lender expressly acknowledges
that neither any Agent nor any of its officers,  directors,  employees,  agents,
attorneys-in-fact or Affiliates has made any representations or warranties to it
and that no act by the  Agents  hereafter  taken,  including  any  review of the
affairs of a Loan Party or any  Affiliate  of a Loan  Party,  shall be deemed to
constitute  any  representation  or warranty  by any Agent to any  Lender.  Each
Lender represents to each Agent that it has,  independently and without reliance
upon any Agent or any other Lender,  and based on such documents and information
as it has deemed  appropriate,  made its own appraisal of and investigation into
the  business,   operations,   property,   financial  and  other  condition  and
creditworthiness  of the Loan  Parties  and  their  Affiliates  and made its own
decision to make its Loans hereunder and enter into this Agreement.  Each Lender
also represents that it will,  independently and without reliance upon any Agent
or any other Lender,  and based on such  documents and  information  as it shall
deem  appropriate  at the  time,  continue  to  make  its own  credit  analysis,
appraisals and decisions in taking or not taking action under this Agreement and
the other Loan Documents,  and to make such  investigation as it deems necessary
to inform itself as to the business,  operations,  property, financial and other
condition and creditworthiness of the Loan Parties and their Affiliates.  Except
for notices,  reports and other documents  expressly required to be furnished to
the Lenders by the Administrative Agent hereunder,  no Agent shall have any duty
or  responsibility  to provide any Lender  with any credit or other  information
concerning  the  business,   operations,   property,   condition  (financial  or
otherwise),  prospects or creditworthiness of any Loan Party or any Affiliate of
a Loan  Party  which may come into the  possession  of such  Agent or any of its
officers, directors, employees, agents, attorneys-in-fact or Affiliates.

9.7  Indemnification.  The Lenders agree to indemnify each Agent in its capacity
as such (to the extent not  reimbursed by the Borrower and without  limiting the
obligation  of the Borrower to do so),  ratably  according  to their  respective
Commitments,  from and against  any and all  liabilities,  obligations,  losses,
damages, penalties,  actions, judgments, suits, costs, expenses or disbursements
of any kind whatsoever which may at any time (including,  without limitation, at
any time  following  the  payment of the Notes) be imposed  on,  incurred  by or
asserted  against  any  Agent in any way  relating  to or  arising  out of,  the
Commitments,  this  Agreement,  any of the other Loan Documents or any documents
contemplated   by  or  referred  to  herein  or  therein  or  the   transactions
contemplated hereby or thereby or any action taken or omitted by any Agent under
or in  connection  with any of the  foregoing;  provided that no Lender shall be
liable for the payment of any portion of such liabilities,  obligations, losses,
damages, penalties,  actions, judgments, suits, costs, expenses or disbursements
which are found by a final and  nonappealable  decision of a court of  competent
jurisdiction  to have  resulted  from such Agent's  gross  negligence or willful
misconduct.  The agreements in this Section 9.7 shall survive the payment of the
Notes and all other amounts payable hereunder.

9.8 Agents in Their  Individual  Capacities.  Each Agent and its  Affiliates may
make loans to, accept deposits from and generally engage in any kind of business
with any Loan Party as though such Agent were not an Agent  hereunder  and under
the other Loan  Documents.  With  respect to its Loans made or renewed by it and
any Note  issued  to it and with  respect  to any  Letter  of  Credit  issued or
participated  in by it, each Agent  shall have the same rights and powers  under
this  Agreement and the other Loan  Documents as any Lender and may exercise the
same as though it were not an Agent,  respectively,  and the terms  "Lender" and
"Lenders" shall include each Agent in their individual capacities.

9.9 Successor  Agents.  The  Administrative  Agent or the  Collateral  Agent may
resign as Administrative  Agent or Collateral Agent, as the case may be, upon 10
days' notice to the Lenders. If the Administrative Agent or the Collateral Agent
shall resign as  Administrative  Agent or Collateral  Agent under this Agreement
and the other Loan Documents, then the Required Lenders shall appoint from among
the Lenders a successor agent in such capacity,  which successor  agent, so long
as no Default or Event of Default shall have occurred and be  continuing,  shall
have been approved by the Borrower  (which  approval  shall not be  unreasonably
withheld or  delayed),  whereupon  such  successor  agent  shall  succeed to the
rights,  powers and duties of the Administrative  Agent or the Collateral Agent,
as the case may be, hereunder. Effective upon such appointment and approval, the
terms  "Administrative  Agent" and "Collateral  Agent" shall mean such successor
agent,  and the former  Administrative  Agent's or  Collateral  Agent's  rights,
powers and duties as such shall be terminated,  without any other or further act
or deed on the part of such former  Administrative  Agent or Collateral Agent or
any of the  parties to this  Agreement  or any  holders of the Notes.  After any
retiring  Agent's  resignation as Agent,  the provisions of this Section 9 shall
inure to its benefit as to any actions  taken or omitted to be taken by it while
it was Agent under this Agreement and the other Loan Documents.



                            SECTION 10. MISCELLANEOUS

10.1 Amendments and Waivers.  Neither this  Agreement,  any other Loan Document,
nor any terms hereof or thereof may be amended,  supplemented or modified except
in accordance with the provisions of this Section 10.1. The Required Lenders and
each Loan Party which is party to the relevant Loan  Documents may, or, with the
written consent of the Required Lenders,  the Administrative Agent and each Loan
Party which is a party to the relevant Loan Document may, from time to time, (a)
enter into written  amendments,  supplements or modifications  hereto and to the
other Loan  Documents for the purpose of adding any provisions to this Agreement
or the other Loan  Documents or changing in any manner the rights of the Lenders
or of the Loan Parties  hereunder or thereunder or (b) waive,  on such terms and
conditions as the Required Lenders or the Administrative  Agent, as the case may
be, may specify in such instrument, any of the requirements of this Agreement or
the  other  Loan   Documents  or  any  Default  or  Event  of  Default  and  its
consequences;  provided that no such waiver and no such amendment, supplement or
modification  shall  (i)  forgive  the  principal  amount of any Loan or any L/C
Obligation,  or extend the final  scheduled  date of  maturity  of any Loan,  or
reduce  the  stated  rate of any  interest,  fee or letter of credit  commission
payable  hereunder  or extend  the  scheduled  date of any  payment  thereof  or
increase the amount or extend the expiration date of any Lender's Commitment, or
waive any  mandatory  prepayment  or make any change in the  application  of any
prepayment of the Loans  specified in the first sentence of Section 2.7(f) or in
Section 2.13(a), or the right to refuse prepayments set forth in the penultimate
sentence  of Section  2.6,  in each case  without  the  consent  of each  Lender
directly affected  thereby,  (ii) extend the scheduled date or reduce the amount
of any reduction of the  Commitments  referred to in Section  2.1(c) without the
consent of each Lender directly affected thereby,  (iii) amend,  modify or waive
any  provision of this Section  10.1 or reduce any  percentage  specified in the
definition of Required Lenders,  or consent to the assignment or transfer by any
Loan Party of any of its rights and  obligations  under this  Agreement  and the
other Loan  Documents or release all or a substantial  portion of the Collateral
(other than in connection with any sale or other disposition of assets permitted
by  Section  7.6  or  pursuant  to  Section  10.17)  or  any  guarantee  of  the
Obligations,  in each case, without the written consent of all the Lenders, (iv)
amend, modify or waive any provision of Section 9 without the written consent of
the Agents, or (v) amend, modify or waive any provision of Section 3 without the
written consent of the Issuing  Lender.  Any such waiver and any such amendment,
supplement or modification  shall apply equally to each of the Lenders and shall
be binding upon the Loan Parties, the Lenders, the Agents and all future holders
of the Notes. In the case of any waiver,  the Loan Parties,  the Lenders and the
Agents shall be restored to their former position and rights hereunder and under
the other Loan  Documents,  and any Default or Event of Default  waived shall be
deemed to be cured and not  continuing;  but no such waiver  shall extend to any
subsequent or other  Default or Event of Default or impair any right  consequent
thereon.

10.2  Notices.  All  notices,  requests  and  demands to or upon the  respective
parties hereto to be effective shall be in writing (including by telecopy), and,
unless otherwise  expressly  provided herein,  shall be deemed to have been duly
given or made when  delivered,  or three Business Days after being  deposited in
the mail,  postage prepaid,  or, in the case of telecopy notice,  when received,
addressed as follows in the case of the Borrower,  the Administrative Agent, the
Collateral Agent and the Arranger, and as set forth in Schedule 1.1A in the case
of the Lenders,  or to such other  address as may be  hereafter  notified by the
respective parties hereto and any future holders of the Notes:

         The Borrower:              Key Energy Group, Inc.
                                    Two Tower Center, Tenth Floor
                                    East Brunswick, New Jersey 08816
                                    Attention: Mr. Stephen E. McGregor
                                    Telecopy: (908) 659-1526
                                    Telephone: (908) 247-5148

         The Administrative
          Agent:                    PNC Bank, National Association
                                    One PNC Plaza, Third Floor
                                    249 Fifth Avenue
                                    Pittsburgh, Pennsylvania 15222-2707
                                    Attention: Mr. Thomas Majeski
                                    Telecopy: (412) 762-2571
                                    Telephone: (412) 762-2431

         with a copy to:            PNC Bank, National Association
                                    One PNC Plaza, Fourth Floor Annex
                                    249 Fifth Avenue
                                    Pittsburgh, Pennsylvania 15222-2707
                                    Attention: Ms. Arlene Ohler
                                    Telecopy: (412) 762-8672
                                    Telephone: (412) 762-3627

         The Collateral
          Agent:                    Norwest Bank Texas, N.A.
                                    500 West Texas Avenue
                                    Midland, Texas 79701
                                    Attention: Mr. Mark McKinney
                                    Telecopy: (915) 685-5441
                                    Telephone: (915) 685-5149

provided that any notice,  request or demand to or upon the Administrative Agent
or the Lenders  pursuant to Section 2.2,  2.5, 2.6 or 2.8 shall not be effective
until  received.  Any notice or delivery  to or from or consent  required of the
Borrower  hereunder or pursuant to any other Loan  Document may be made to or by
the Borrower.

10.3 No Waiver;  Cumulative  Remedies.  No failure to  exercise  and no delay in
exercising,  on the part of any Agent or any Lender, any right, remedy, power or
privilege  hereunder or under the other Loan Documents shall operate as a waiver
thereof; nor shall any single or partial exercise of any right, remedy, power or
privilege  hereunder  preclude  any other or  further  exercise  thereof  or the
exercise of any other right, remedy, power or privilege.  The rights,  remedies,
powers and  privileges  herein  provided are cumulative and not exclusive of any
rights, remedies, powers and privileges provided by law.

10.4 Survival.  All representations and warranties made hereunder,  in the other
Loan Documents and in any document,  certificate or statement delivered pursuant
hereto or in  connection  herewith  shall  survive the execution and delivery of
this Agreement and the Notes and the making of the Loans hereunder.

10.5 Payment of Expenses and Taxes.  The Borrower agrees (a) to pay or reimburse
the Agents for all their reasonable out-of-pocket costs and expenses incurred in
connection  with  the  development,   preparation  and  execution  of,  and  any
amendment,  supplement  or  modification  to, this  Agreement and the other Loan
Documents and any other documents prepared in connection  herewith or therewith,
and the consummation and administration of the transactions  contemplated hereby
and  thereby,   including,   without   limitation,   the  reasonable   fees  and
disbursements of counsel (including any local counsel) to the Agents, (b) to pay
or  reimburse  each Lender and each of the Agents for all its costs and expenses
incurred in connection  with the enforcement or preservation of any rights under
this  Agreement,  the  other  Loan  Documents  and  any  such  other  documents,
including,  without limitation, the fees and disbursements of counsel (including
the allocated fees and expenses of in-house  counsel) to each Lender and counsel
to the  Agents,  (c) to pay,  indemnify,  and hold each  Lender  and each  Agent
harmless from, any and all recording and filing fees and any and all liabilities
with respect to, or resulting from any delay in paying,  stamp, excise and other
taxes,  if any,  which may be payable or  determined to be payable in connection
with the execution and delivery of, or consummation or  administration of any of
the transactions  contemplated by, or any amendment,  supplement or modification
of, or any waiver or consent under or in respect of, this  Agreement,  the other
Loan Documents and any such other documents, and (d) to pay, indemnify, and hold
each Lender and each Agent and their respective officers,  directors,  trustees,
employees,  affiliates,  agents and controlling  persons (each, an "indemnitee")
harmless from and against any and all other  liabilities,  obligations,  losses,
damages, penalties,  actions, judgments, suits, costs, expenses or disbursements
of any kind or  nature  whatsoever  with  respect  to the  execution,  delivery,
enforcement,  performance and  administration of this Agreement,  the other Loan
Documents and any such other documents,  including,  without limitation,  any of
the foregoing  relating to the use of proceeds of the Loans or the violation of,
noncompliance  with or liability under, any  Environmental Law applicable to the
Borrower,  any of its Subsidiaries,  any of its Excluded  Subsidiaries or any of
the  Properties  (all  the  foregoing  in this  clause  (d),  collectively,  the
"indemnified liabilities"),  provided that the Borrower shall have no obligation
hereunder to any  indemnitee  with  respect to  indemnified  liabilities  to the
extent  such  indemnified  liabilities  are found by a final  and  nonappealable
decision of a court of competent  jurisdiction  to have  resulted from the gross
negligence  or willful  misconduct  of such  indemnitee.  Without  limiting  the
foregoing,  and to the extent  permitted by applicable  law, the Borrower agrees
not to assert,  and hereby waives,  and to cause each of its Subsidiaries not to
assert  and to so waive,  all  rights for  contribution  or any other  rights of
recovery with respect to all claims,  demands,  penalties,  fines,  liabilities,
settlements,  damages,  costs and expenses of whatever kind or nature,  under or
related  to  Environmental  Laws,  that any of them  might  have by  statute  or
otherwise  against any  Indemnitee.  The  agreements  in this Section 10.5 shall
survive  repayment of the Notes and all other amounts payable  hereunder and the
termination  of the  Commitments  and, in the case of any Lender that may assign
any interest in its Commitments,  Loans or Letter of Credit interest  hereunder,
shall survive the making of such assignment, notwithstanding that such assigning
Lender may cease to be a "Lender" hereunder.

10.6 Successors and Assigns;  Participation and Assignments.  (a) This Agreement
shall be binding upon and inure to the benefit of the Borrower, the Lenders, the
Agents,  all future  holders of the Notes and their  respective  successors  and
assigns,  except that the  Borrower may not assign or transfer any of its rights
or obligations  under this Agreement  without the prior written  consent of each
Lender.

(b) Any Lender may, without the consent of the Borrower,  in the ordinary course
of its business and in accordance  with  applicable law, at any time sell to one
or more banks or other entities (each, a "Participant")  participating interests
in any Loan owing to such Lender,  any Note held by such Lender,  any Commitment
of such  Lender or any other  interest of such  Lender  hereunder  and under the
other  Loan  Documents.  In  the  event  of  any  such  sale  by a  Lender  of a
participating  interest to a Participant,  such Lender's  obligations under this
Agreement to the other parties to this Agreement  shall remain  unchanged,  such
Lender shall remain solely responsible for the performance thereof,  such Lender
shall remain the holder of any such Note for all purposes  under this  Agreement
and the other Loan  Documents,  and the  Borrower and the  Administrative  Agent
shall  continue to deal solely and directly with such Lender in connection  with
such Lender's  rights and  obligations  under this  Agreement and the other Loan
Documents.  In no event shall any Participant under any such  participation have
any right to  approve  any  amendment  or waiver  of any  provision  of any Loan
Document, or any consent to any departure by any Loan Party therefrom, except to
the extent that such amendment, waiver or consent would reduce the principal of,
or interest  on, the Notes or any fees payable  hereunder,  postpone the date of
the final  maturity of the Notes,  consent to the  assignment or transfer by the
Borrower of any of its rights and obligations under this Agreement and the other
Loan Documents,  release all or a substantial  portion of the Collateral  (other
than in connection  with any sale or other  disposition  of assets  permitted by
Section  7.6) or any  guarantee of the  Obligations,  in each case to the extent
subject to such  participation.  The Borrower agrees that if amounts outstanding
under  this  Agreement  and the  Notes  are due or  unpaid,  or shall  have been
declared or shall have become due and payable upon the occurrence of an Event of
Default,  each Participant  shall, to the maximum extent permitted by applicable
law,  be deemed to have the right of  setoff  in  respect  of its  participating
interest in amounts  owing under this  Agreement and any Note to the same extent
as if the amount of its  participating  interest were owing  directly to it as a
Lender under this  Agreement or any Note,  provided  that,  in  purchasing  such
participating interest, such Participant shall be deemed to have agreed to share
with the Lenders the proceeds thereof as provided in Section 10.7(a) as fully as
if it were a Lender  hereunder.  The Borrower also agrees that each  Participant
shall be entitled to the benefits of Sections  2.15,  2.16 and 2.17 with respect
to its  participation in the Commitments and the Loans  outstanding from time to
time as if it was a Lender;  provided  that, in the case of Section  2.16,  such
Participant  shall have  complied  with the  requirements  of said  Section  and
provided,  further, that no Participant shall be entitled to receive any greater
amount  pursuant to any such Section than the transferor  Lender would have been
entitled to receive in respect of the amount of the participation transferred by
such transferor Lender to such Participant had no such transfer occurred.

(c) Any Lender may, in the ordinary  course of its  business  and in  accordance
with  applicable  law, at any time and from time to time assign to any Lender or
any affiliate thereof or any Person under common management with any such Lender
or, with the consent of the Borrower,  the Administrative Agent and, in the case
of an assignment of Commitments,  the Issuing Lender (which, in each case, shall
not be unreasonably  withheld,  delayed or conditioned),  to an additional bank,
financial  institution  or other entity (an  "Assignee")  all or any part of its
rights and obligations under this Agreement, the Letters of Credit and the Notes
pursuant to an Assignment and Acceptance,  substantially  in the form of Exhibit
G,  executed by such  Assignee,  such  assigning  Lender (and, in the case of an
Assignee  that is not then a Lender or an  affiliate  thereof or a Person  under
common management with such Lender, by the Borrower,  the  Administrative  Agent
and,  in the case of an  assignment  of  Commitments,  the  Issuing  Lender) and
delivered to the  Administrative  Agent for its  acceptance and recording in the
Register;  provided  that  (except  with the  consent  of the  Borrower  and the
Administrative  Agent) (i) no such  assignment  to an  Assignee  (other than any
Lender or any affiliate  thereof or any Person under common management with such
Lender) shall be in an aggregate principal amount of less than $5,000,000 (other
than in the case of an  assignment  of all of a  Lender's  interests  under this
Agreement  and the  Notes)  and  (ii)  subsequent  to any  such  assignment  the
assigning  Lender  shall not retain an aggregate  principal  amount of less than
$5,000,000 in  Commitments  and Loans.  Such  assignment  need not be ratable as
among any Commitments and/or Loans of the assigning Lender. Upon such execution,
delivery, acceptance and recording, from and after the effective date determined
pursuant to such Assignment and Acceptance, (x) the Assignee thereunder shall be
a party hereto and, to the extent  provided in such  Assignment and  Acceptance,
have the rights and  obligations of a Lender  hereunder with a Commitment as set
forth therein,  and (y) the assigning  Lender  thereunder  shall,  to the extent
provided in such  Assignment and  Acceptance,  be released from its  obligations
under this Agreement (and, in the case of an Assignment and Acceptance  covering
all or the remaining  portion of an assigning  Lender's  rights and  obligations
under this Agreement,  such assigning  Lender shall cease to be a party hereto).
Notwithstanding  any  provision of this  paragraph (c) and paragraph (e) of this
Section  10.6,  the  consent  of the  Borrower  shall  not be  required  for any
assignment  which  occurs  at any time  when any  Event of  Default  shall  have
occurred and be continuing.

(d) A Note and the Obligation(s)  evidenced thereby may be assigned or otherwise
transferred  in whole or in part  only by  registration  of such  assignment  or
transfer of such Note and the  Obligation(s)  evidenced  thereby on the Register
(and each Note shall expressly so provide). Any assignment or transfer of all or
part  of such  Obligation(s)  and the  Note(s)  evidencing  the  same  shall  be
registered on the Register only upon surrender for registration of assignment or
transfer  of  the  Note(s)  evidencing  such  Obligation(s),  accompanied  by an
Assignment  and  Acceptance  duly  executed by the holder of such  Note(s),  and
thereupon one or more new Note(s) in the same aggregate  principal  amount shall
be issued to the designated  Assignee(s)  and the old Notes(s) shall be returned
by the Administrative Agent to the Borrower marked "cancelled." No assignment of
a Note and the Obligation(s)  evidenced thereby shall be effective unless it has
been recorded in the Register as provided in this Section 10.6(d).

(e) The  Administrative  Agent  shall  maintain  at its  address  referred to in
Section  10.2 a copy of each  Assignment  and  Acceptance  delivered to it and a
register (the  "Register") for the recordation of the names and addresses of the
Lenders and the Commitment of, and principal  amount of the Loans owing to, each
Lender  from  time  to time  and  the  registered  owners  of the  Obligation(s)
evidenced by the Note(s).  The entries in the Register shall be  conclusive,  in
the absence of manifest error, and the Borrower,  the  Administrative  Agent and
the Lenders  shall treat each Person  whose name is recorded in the  Register as
the owner of the Loan or the Obligation evidenced by a Note recorded therein for
all purposes of this  Agreement.  The Register shall be available for inspection
by the Borrower or any Lender at any reasonable  time and from time to time upon
reasonable prior notice.

(f) Upon its receipt of an Assignment  and  Acceptance  executed by an assigning
Lender  and an  Assignee  (and,  in the case of an  Assignee  that is not then a
Lender or an affiliate  thereof or a Person under  common  management  with such
Lender,  by the  Borrower,  the  Administrative  Agent and the  Issuing  Lender)
together  with  payment  to  the  Administrative  Agent  of a  registration  and
processing fee of $3,500,  the  Administrative  Agent shall (i) promptly  accept
such  Assignment  and  Acceptance  and  (ii) on the  effective  date  determined
pursuant  thereto record the information  contained  therein in the Register and
give notice of such  acceptance and recordation to the Lenders and the Borrower.
On or prior to such  effective  date,  the  Borrower,  at its own expense,  upon
request,  shall execute and deliver to the Administrative Agent (in exchange for
the Note of the assigning Lender) a new Note to the order of such Assignee in an
amount equal to the  Commitment  assumed by it pursuant to such  Assignment  and
Acceptance  and, if the assigning  Lender has retained a Commitment  Note to the
order of the assigning  Lender in an amount equal to the Commitment  retained by
it hereunder. Such new Notes shall be dated the Closing Date and shall otherwise
be in the form of the Note replaced thereby.

(g) The  Borrower  authorizes  each  Lender to disclose  to any  Participant  or
Assignee  (each,  a  "Transferee")  and any  prospective  Transferee any and all
financial  information in such Lender's  possession  concerning the Borrower and
its  Affiliates  which has been  delivered to such Lender by or on behalf of the
Borrower  pursuant to this  Agreement or which has been delivered to such Lender
by or on  behalf  of the  Borrower  in  connection  with  such  Lender's  credit
evaluation of the Borrower and its Affiliates  prior to becoming a party to this
Agreement.

(h) Nothing  herein  shall  prohibit or restrict any Lender from (i) pledging or
assigning any Note to any Federal Reserve Bank in accordance with applicable law
or (ii) with the prior  consent  of the  Administrative  Agent and the  Borrower
(which,  in  each  case,  shall  not be  unreasonably  withheld  or  delayed  or
conditioned),  pledging  its rights in  connection  with any Loan or Note to any
other Person.

10.7 Adjustments;  Set-off.  (a) If any Lender (a "Benefitted  Lender") shall at
any time  receive any  payment of all or part of its Loans or the  Reimbursement
Obligations  owing to it, or  interest  thereon,  or receive any  collateral  in
respect  thereof  then due and  owing to such  Lender  (whether  voluntarily  or
involuntarily,  by  set-off,  pursuant  to events or  proceedings  of the nature
referred to in Section 8(f), or  otherwise),  in a greater  proportion  than any
such payment to or collateral  received by any other Lender,  if any, in respect
of such other Lender's Loans or the Reimbursement Obligations then due and owing
to such other Lender, or interest thereon, such Benefitted Lender shall purchase
for cash  from the other  Lenders a  participating  (or,  at the  option of such
Lender,  a direct)  interest in such  portion of each such other  Lender's  Loan
and/or of the  Reimbursement  Obligations  owing to each such other  Lender,  or
shall  provide such other Lenders with the benefits of any such  collateral,  or
the proceeds  thereof,  as shall be necessary to cause such Benefitted Lender to
share the excess payment or benefits of such collateral or proceeds ratably with
each of the Lenders;  provided that if all or any portion of such excess payment
or benefits is thereafter  recovered from such Benefitted Lender,  such purchase
shall be rescinded,  and the purchase price and benefits returned, to the extent
of such recovery, but without interest.

(b) In addition to any rights and remedies of the Lenders  provided by law, each
Lender  shall have the right,  without  prior notice to the  Borrower,  any such
notice  being  expressly  waived by the  Borrower  to the  extent  permitted  by
applicable  law,  upon any  amount  becoming  due and  payable  by the  Borrower
hereunder or under the Notes (whether at the stated maturity, by acceleration or
otherwise) to set off and  appropriate and apply against such amount any and all
deposits  (general or special,  time or demand,  provisional  or final),  in any
currency,  and any other credits,  indebtedness or claims,  in any currency,  in
each case  whether  direct or  indirect,  absolute  or  contingent,  matured  or
unmatured,  at any time  held or owing by such  Lender  or any  branch or agency
thereof to or for the credit or the account of the Borrower.  Each Lender agrees
promptly  to notify the  Borrower  and the  Administrative  Agent after any such
setoff and  application  made by such Lender,  provided that the failure to give
such notice shall not affect the validity of such setoff and application.

10.8 Counterparts.  This Agreement may be executed by one or more of the parties
to  this  Agreement  on  any  number  of  separate  counterparts  (including  by
telecopy),  and all of said  counterparts  taken  together  shall be  deemed  to
constitute  one and the same  instrument.  A set of the copies of this Agreement
signed  by  all  the  parties   shall  be  lodged  with  the  Borrower  and  the
Administrative Agent.

10.9  Severability.  Any  provision of this  Agreement  which is  prohibited  or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability  without  invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render  unenforceable such provision in any
other jurisdiction.

10.10  Integration.  This Agreement and the other Loan  Documents  represent the
agreement  of the  Borrower,  the  Administrative  Agent,  the  Arranger and the
Lenders with respect to the subject  matter  hereof,  and there are no promises,
undertakings,  representations  or warranties by the  Administrative  Agent, the
Arranger or any Lender relative to subject matter hereof not expressly set forth
or referred to herein or in the other Loan Documents.

10.11 GOVERNING LAW. THIS AGREEMENT AND THE NOTES AND THE RIGHTS AND OBLIGATIONS
OF THE PARTIES  UNDER THIS  AGREEMENT  AND THE NOTES  SHALL BE GOVERNED  BY, AND
CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

10.12 Submission To Jurisdiction;  Waivers.  The Borrower hereby irrevocably and
unconditionally:

(a)  submits  for  itself and its  property  in any legal  action or  proceeding
relating to this  Agreement and the other Loan Documents to which it is a party,
or for recognition and  enforcement of any judgment in respect  thereof,  to the
non-exclusive  general  jurisdiction of the Courts of the State of New York, the
courts of the United States for the Southern District of New York, and appellate
courts from any thereof;

(b) consents  that any such action or  proceeding  may be brought in such courts
and waives any objection  that it may now or hereafter  have to the venue of any
such action or  proceeding  in any such court or that such action or  proceeding
was brought in an inconvenient court and agrees not to plead or claim the same;

(c) agrees  that  service of process  in any such  action or  proceeding  may be
effected  by mailing a copy  thereof by  registered  or  certified  mail (or any
substantially  similar form of mail),  postage  prepaid,  to the Borrower at its
address  set  forth in  Section  10.2 or at such  other  address  of  which  the
Administrative Agent shall have been notified pursuant thereto;

(d) agrees  that  nothing  herein  shall  affect the right to effect  service of
process in any other manner  permitted by law or shall limit the right to sue in
any other jurisdiction; and

(e) waives,  to the maximum  extent not prohibited by law, any right it may have
to claim or  recover  in any legal  action  or  proceeding  referred  to in this
Section 10.12 any special, exemplary, punitive or consequential damages.

10.13 Acknowledgements. The Borrower hereby acknowledges that:

(a) it has been advised by counsel in the negotiation, execution and delivery of
this Agreement and the other Loan Documents;

(b) neither any Agent nor any Lender has any fiduciary relationship with or duty
to the Borrower  arising out of or in connection  with this  Agreement or any of
the other Loan Documents,  and the relationship  between the Agents and Lenders,
on one hand,  and the Borrower,  on the other hand,  in  connection  herewith or
therewith is solely that of debtor and creditor; and

(c) no joint  venture  is  created  hereby or by the  other  Loan  Documents  or
otherwise  exists by virtue of the  transactions  contemplated  hereby among the
Lenders or among the Borrower and the Lenders.

10.14  WAIVERS OF JURY TRIAL.  THE BORROWER,  THE AGENTS AND THE LENDERS  HEREBY
IRREVOCABLY  AND  UNCONDITIONALLY  WAIVE  TRIAL BY JURY IN ANY  LEGAL  ACTION OR
PROCEEDING  RELATING TO THIS  AGREEMENT  OR ANY OTHER LOAN  DOCUMENT AND FOR ANY
COUNTERCLAIM THEREIN.

10.15  Confidentiality.  Each of the  Agents  and  each  Lender  agrees  to keep
confidential  all  non-public  information  provided  to it by  any  Loan  Party
pursuant  to  this   Agreement   that  is  designated  by  such  Loan  Party  as
confidential;  provided  that  nothing  herein  shall  prevent the Agents or any
Lender from  disclosing any such  information (a) to the Agents any other Lender
or any affiliate or investment  advisor of any Lender,  (b) to any Transferee or
prospective  Transferee  which  agrees to  comply  with the  provisions  of this
Section 10.15, (c) to the employees,  directors, agents, attorneys,  accountants
and other professional  advisors of such Lender or its affiliates,  (d) upon the
request or demand of any Governmental  Authority having  jurisdiction  over such
Agent  or such  Lender,  (e) in  response  to any  order  of any  court or other
Governmental  Authority  or  as  may  otherwise  be  required  pursuant  to  any
Requirement of Law, (f) if requested or required to do so in connection with any
litigation or similar  proceeding,  (g) which has been publicly  disclosed other
than in breach of this Section 10.15 or (h) in  connection  with the exercise of
any remedy hereunder or under any other Loan Document.

10.16 Enforceability;  Usury. In no event shall any provision of this Agreement,
the Notes, or any other  instrument  evidencing or securing the  indebtedness of
the Borrower  hereunder ever obligate the Borrower to pay or allow any Lender to
collect  interest  on  the  Notes  or any  other  indebtedness  of the  Borrower
hereunder  at a rate  greater than the maximum  non-usurious  rate  permitted by
applicable law (herein  referred to as the "Highest  Lawful Rate"),  or obligate
the Borrower to pay any taxes, assessments, charges, insurance premiums or other
amounts to the extent that such payments,  when added to the interest payable on
the Notes,  would be held to constitute  the payment by the Borrower of interest
at a rate greater than the Highest Lawful Rate; and this provision shall control
over any provision to the contrary.

Without  limiting the generality of the foregoing,  in the event the maturity of
all or any part of the  principal  amount of the  indebtedness  of the  Borrower
hereunder  shall be accelerated  for any reason,  then such principal  amount so
accelerated  shall be credited  with any  interest  theretofore  paid thereon in
advance and remaining unearned at the time of such acceleration. If, pursuant to
the terms of this  Agreement or the Notes,  any funds are applied to the payment
of any  part  of  the  principal  amount  of the  indebtedness  of the  Borrower
hereunder  prior to the  maturity  thereof,  then (a) any  interest  which would
otherwise  thereafter accrue on the principal amount so paid by such application
shall be canceled,  and (b) the indebtedness of the Borrower hereunder remaining
unpaid after such application shall be credited with the amount of all interest,
if  any,  theretofore  collected  on  the  principal  amount  so  paid  by  such
application and remaining  unearned at the date of said application;  and if the
funds so applied shall be sufficient to pay in full all the  indebtedness of the
Borrower  hereunder,  then the Lenders shall refund to the Borrower all interest
theretofore  paid thereon in advance and remaining  unearned at the time of such
acceleration.  Regardless of any other provision in this Agreement, or in any of
the  written  evidences  of the  indebtedness  of the  Borrower  hereunder,  the
Borrower  shall  never  be  required  to  pay  any  unearned  interest  on  such
indebtedness or any portion thereof, and shall never be required to pay interest
thereon  at a rate in excess of the  Highest  Lawful  Rate  construed  by courts
having competent jurisdiction thereof.

10.17 Collateral Release. Upon the occurrence of a Collateral Release Event, the
Liens on the Collateral  granted pursuant to the Security Documents or otherwise
securing  Obligations shall be released  automatically.  Within one Business Day
following the  satisfaction  of the foregoing  conditions and the receipt by the
Administrative  Agent of a certificate of a Responsible  Officer certifying that
such conditions have been satisfied,  the Administrative  Agent shall deliver to
the  Collateral  Agent the notice  required  pursuant to Section 8.16 the Master
Guarantee and Collateral Agreement.



IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be duly
executed and  delivered by their proper and duly  authorized  officers as of the
day and year first above written.

KEY ENERGY GROUP, INC..


By:      /s/ Stephen E. McGregor
Title: Executive Vice President


PNC BANK, NATIONAL ASSOCIATION
as Administrative Agent and as a Lender


By:      /s/ Thomas A. Majeski
Title: Vice President


NORWEST BANK TEXAS, N.A.
as Collateral Agent and Issuing Lender


By:      /s/ Mark D. McKinney
Title: Senior Vice President

 



                                  Pricing Grid

                    Applicable Margin for    Applicable Margin for
 Consolidated       Loans which are          Loans which are         Commitment
 Leverage Ratio     Eurodollar Loans         Base Rate Loans          Fee Rate
                                                                   

greater than
3.5 to 1.0              1.50%                   0.00%                     .35%

greater than
3.0 to 1.0 but          1.25%                   0.00%                     .30%
less than or equal 
to 3.5 to 1.0

greater than 
2.50 to 1.0 but                                                  
less than or equal
to 3.0 to 1.0           1.00%                   0.00%                     .25%


#2.50 to 1.0            0.75%                   0.00%                      .20%



                   Commitments; Lending Offices and Addresses



                               Mortgaged Property




                     Oil and Gas Properties to be Mortgaged



                           Existing Letters of Credit

Account Party              Issuer           Amount          Number   Beneficiary



                                    Consents




                                  Schedule 4.8

                          Other Real Property Interests




                                  Subsidiaries




                                Schedule 4.19(b)

                            UCC Filing Jurisdictions



                          Mortgage Filing Jurisdictions




                    Oil and Gas Mortgage Filing Jurisdictions




           Mortgaged Properties to be Covered by Environmental Reports




                              Existing Indebtedness



                                  Schedule 7.3

                                 Existing Liens



                                  $200,000,000
                              AMENDED AND RESTATED
                                CREDIT AGREEMENT


                                      among


                             KEY ENERGY GROUP, INC.


                               THE SEVERAL LENDERS
                        FROM TIME TO TIME PARTIES HERETO


                         PNC BANK, NATIONAL ASSOCIATION,
                             as Administrative Agent


                            NORWEST BANK TEXAS, N.A.,
                               as Collateral Agent

                                       and

                            PNC CAPITAL MARKETS, INC.
                                   as Arranger


                            Dated as of June 6, 1997,
                         as amended and restated through
                                November 6, 1997





                                TABLE OF CONTENTS

SECTION  1. DEFINITIONS......................................................  1
         1.1 Defined Terms...................................................  1
         1.2 Other Definitional Provisions................................... 19

SECTION 2. AMOUNT AND TERMS OF COMMITMENTS................................... 20
         2.1 Commitments..................................................... 20
         2.2 Procedure for Borrowing......................................... 20
         2.3 Commitment Fees, etc. .......................................... 21
         2.4 Repayment of Loans; Evidence of Debt............................ 21
         2.5 Optional Termination or Reduction of Commitments................ 22
         2.6 Optional Prepayments............................................ 22
         2.7 Mandatory Prepayments and Commitment Reductions................. 23
         2.8 Conversion and Continuation Options............................. 24
         2.9 Minimum Amounts and Maximum Number of Eurodollar Tranches....... 24
         2.10 Interest Rates and Payment Dates............................... 24
         2.11 Computation of Interest and Fees............................... 25
         2.12 Inability to Determine Interest Rate........................... 25
         2.13 Pro Rata Treatment and Payments................................ 26
         2.14 Illegality..................................................... 27
         2.15 Requirements of Law............................................ 27
         2.16 Taxes  29
         2.17 Indemnity...................................................... 30
         2.18 Change of Lending Office....................................... 31
         2.19 Use of Proceeds................................................ 31
         2.20 Replacement of Lenders......................................... 31

SECTION 3. LETTERS OF CREDIT................................................. 32
         3.1 L/C Commitment.................................................. 32
         3.2 Procedure for Issuance of Letter of Credit...................... 32
         3.3 Fees, Commissions and Other Charges............................. 33
         3.4 L/C Participation............................................... 33
         3.5 Reimbursement Obligation of the Borrower........................ 34
         3.6 Obligations Absolute............................................ 34
         3.7 Letter of Credit Payments....................................... 35
         3.8 Applications.................................................... 35

SECTION 4. REPRESENTATIONS AND WARRANTIES.................................... 35
         4.1 Financial Condition............................................. 35
         4.2 No Change....................................................... 36
         4.3 Corporate Existence; Compliance with Law........................ 36
         4.4 Corporate Power; Authorization; Enforceable Obligations......... 36
         4.5 No Legal Bar.................................................... 37
         4.6 No Material Litigation.......................................... 37
         4.7 No Default...................................................... 37
         4.8 Ownership of Property; Liens.................................... 37
         4.9 Intellectual Property........................................... 37
         4.10 No Burdensome Restrictions..................................... 38
         4.11 Taxes  38
         4.12 Federal Regulations............................................ 38
         4.13 ERISA  38
         4.14 Investment Company Act; Other Regulations...................... 39
         4.15 Subsidiaries................................................... 39
         4.16 Purpose of Loans; Limitations on Use........................... 39
         4.17 Environmental Matters.......................................... 39
         4.18 Accuracy of Information........................................ 40
         4.19 Security Documents............................................. 41
         4.20 Solvency....................................................... 42
         4.21 Labor Matters.................................................. 42
         4.22 Indentures..................................................... 42
         4.23 Excluded Subsidiaries.......................................... 42
         4.24 Oil and Gas Properties......................................... 42

SECTION 5. CONDITIONS PRECEDENT.............................................. 43
         5.1 Conditions to Effectiveness..................................... 43
         5.2 Conditions to Each Extension of Credit.......................... 45

SECTION 6. AFFIRMATIVE COVENANTS............................................. 45
         6.1 Financial Statements............................................ 45
         6.2 Certificates; Other Information................................. 46
         6.3 Payment of Obligations.......................................... 47
         6.4 Conduct of Business and Maintenance of Existence, etc. ......... 47
         6.5 Maintenance of Property; Insurance.............................. 48
         6.6 Inspection of Property; Books and Records; Discussions.......... 48
         6.7 Notices 48
         6.8 Environmental Laws.............................................. 49
         6.9 Further Assurances.............................................. 50
         6.10 Additional Collateral.......................................... 51
         6.11 Post-Closing Matters........................................... 53
         6.12 Authorization of Additional Shares of Stock.................... 54

SECTION 7. NEGATIVE COVENANTS................................................ 54
         7.1 Financial Condition Covenants................................... 54
         7.2 Limitation on Indebtedness...................................... 56
         7.3 Limitation on Liens............................................. 58
         7.4 Limitation on Guarantee Obligations............................. 59
         7.5 Limitation on Fundamental Changes............................... 59
         7.6 Limitation on Sale of Assets.................................... 60
         7.7 Limitation on Restricted Payments............................... 61
         7.8 Limitation on Capital Expenditures.............................. 61
         7.9 Limitation on Investments, Loans and Advances................... 62
         7.10 Limitation on Optional Payments and Modifications 
of Debt Instruments and Organizational Documentation, etc. .................. 63
         7.11 Limitation on Transactions with Affiliates..................... 64
         7.12 Limitation on Sales and Leasebacks............................. 64
         7.13 Limitation on Changes in Fiscal Year........................... 64
         7.14 Limitation on Negative Pledge Clauses.......................... 64
         7.15 Limitation on Lines of Business................................ 64
         7.16 Limitation on Consolidated Lease Expense....................... 64

SECTION 8. EVENTS OF DEFAULT................................................. 64

SECTION 9. THE AGENTS........................................................ 67
         9.1 Appointment..................................................... 67
         9.2 Delegation of Duties............................................ 68
         9.3 Exculpatory Provisions.......................................... 68
         9.4 Reliance by Agents.............................................. 68
         9.5 Notice of Default............................................... 69
         9.6 Non-Reliance on Agents and Other Lenders........................ 69
         9.7 Indemnification................................................. 69
         9.8 Agents in Their Individual Capacities........................... 70
         9.9 Successor Agents................................................ 70

SECTION 10. MISCELLANEOUS.................................................... 70
         10.1 Amendments and Waivers......................................... 70
         10.2 Notices........................................................ 71
         10.3 No Waiver; Cumulative Remedies................................. 72
         10.4 Survival....................................................... 72
         10.5 Payment of Expenses and Taxes.................................. 73
         10.6 Successors and Assigns; Participation and Assignments.......... 74
         10.7 Adjustments; Set-off........................................... 76
         10.8 Counterparts................................................... 77
         10.9 Severability................................................... 77
         10.10 Integration................................................... 77
         10.11 GOVERNING LAW................................................. 77
         10.12 Submission To Jurisdiction; Waivers........................... 78
         10.14 WAIVERS OF JURY TRIAL......................................... 78
         10.15 Confidentiality............................................... 79
         10.16 Enforceability; Usury......................................... 79
         10.17  Collateral Release........................................... 80






ANNEXES:

I                 Pricing Grid



SCHEDULES:

1.1A              Commitments; Lending Offices and Addresses
1.1B              Mortgaged Property
1.1C              Oil and Gas Properties to be Mortgaged
3.1               Existing Letters of Credit
4.4               Consents
4.8               Other Real Property Interests
4.15              Subsidiaries
4.19(b)           UCC Filing Jurisdictions
4.19(c)           Mortgage Filing Jurisdictions
4.19(d)           Oil and Gas Mortgage Filing Jurisdictions
6.11(e)           Mortgaged Properties to be Covered by Environmental Reports
7.2               Existing Indebtedness
7.3               Existing Liens



EXHIBITS:

A                 Form of Master Guarantee and Collateral Agreement
B                 Form of Mortgage
C                 Form of Note
D                 Form of Closing Certificate
E-1               Legal Opinion of Jack D. Loftis, Jr., Esq.
E-2               Form of Opinion of Porter & Hedges
F                 Form of Exemption Certificate
G                 Form of Assignment and Acceptance