1
                                                                  EX-10.1(a)

                                                                  EXECUTION COPY



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                                CREDIT AGREEMENT


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

                              HECLA MINING COMPANY

                            and CERTAIN SUBSIDIARIES


                                      and


                           NATIONSBANK OF TEXAS, N.A.

                                    as Agent


                               and CERTAIN BANKS

                                   as Lenders


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


                                  $40,000,000



                                August 30, 1994


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                                                               TABLE OF CONTENTS


                                                                                                             Page
                                                                                                            
                                                                                                            
CREDIT AGREEMENT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                                                                                                            
ARTICLE I - Definitions and References  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
         Section 1.1.  Defined Terms  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
         Section 1.2.  Exhibits and Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
         Section 1.3.  Amendment of Defined Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
         Section 1.4.  References and Titles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
         Section 1.5.  Calculations and Determinations  . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                                                                                                            
ARTICLE II - The Loans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
         Section 2.1.  Advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
         Section 2.2.  Requests for Advances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
         Section 2.3.  Use of Proceeds  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
         Section 2.4.  Rate Elections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
         Section 2.5.  Facility Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
         Section 2.6.  Agent's Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
         Section 2.7.  Optional Prepayments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
         Section 2.8.  Mandatory Prepayments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
         Section 2.9.  Payments to Lenders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
         Section 2.10.  Capital Reimbursement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
         Section 2.11.  Increased Cost of Fixed Rate Portions . . . . . . . . . . . . . . . . . . . . . . . .  20
         Section 2.12.  Availability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
         Section 2.13.  Funding Losses  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
         Section 2.14.  Reimbursable Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
                                                                                                            
ARTICLE IIA -- Letters of Credit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
         Section 2A.1.  Letters of Credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
         Section 2A.2.  Requesting Letters of Credit  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         Section 2A.3.  Reimbursement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         Section 2A.4.  Transferees of Letters of Credit  . . . . . . . . . . . . . . . . . . . . . . . . . .  25
         Section 2A.5.  Extension of Maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
         Section 2A.6.  Restriction on Liability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
         Section 2A.7.  No Duty to Inquire  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
         Section 2A.8.  Payment of LC Obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                                                                                                            
ARTICLE III - Conditions Precedent to Lending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
         Section 3.1.  Documents to be Delivered  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
         Section 3.2.  Additional Conditions Precedent  . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
                                                                                                            
ARTICLE IV - Representations and Warranties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         Section 4.1.  Borrower's Representations and                                                       
                         Warranties   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         Section 4.2.  Representation by Lenders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                                                                                                            
ARTICLE V - Covenants of Borrower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
         Section 5.1.  Affirmative Covenants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
         Section 5.2.  Negative Covenants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                                                                                                            
ARTICLE VI - Bank Accounts, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
         Section 6.1.  Bank Accounts; Offset  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
 




                                     -i-
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ARTICLE VIA - Guaranty  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
         Section 6A.1.  Guaranty  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
         Section 6A.2.  Unconditional Guaranty  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
         Section 6A.3.  Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49
         Section 6A.4.  No Subrogation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
         Section 6A.5.  Subordination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
                                                                                                            
ARTICLE VII - Events of Default and Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
         Section 7.1.  Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
         Section 7.2.  Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
         Section 7.3.  INDEMNITY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
                                                                                                            
ARTICLE VIII - Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
         Section 8.1.  Appointment and Authority  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
         Section 8.2.  Exculpation, Agent's Reliance, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . .  55
         Section 8.3.  Lenders' Credit Decisions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
         Section 8.4.  Indemnification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
         Section 8.5.  Rights as Lender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
         Section 8.6.  Sharing of Set-Offs and Other Payments . . . . . . . . . . . . . . . . . . . . . . . .  57
         Section 8.7.  Investments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
         Section 8.8.  Benefit of Article VIII  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
         Section 8.9.  Resignation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
         Section 8.10.  Withholding Tax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
                                                                                                            
ARTICLE IX - Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
         Section 9.1.  Waivers and Amendments; Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  59
         Section 9.2.  Survival of Agreements; Cumulative                                                   
                         Nature   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
         Section 9.3.  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
         Section 9.4.  Joint and Several Liability; Parties in                                              
                         Interest   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
         Section 9.5.  Governing Law; Submission to Process . . . . . . . . . . . . . . . . . . . . . . . . .  62
         Section 9.6.  Limitation on Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
         Section 9.7.  Termination; Limited Survival  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
         Section 9.8.  Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
         Section 9.9.  Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
         SECTION 9.10.  WAIVER OF JURY TRIAL, PUNITIVE DAMAGES,                                             
                         ETC.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
         Section 9.11.  Assignments and Participations  . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
                                                                    



Schedules and Exhibits
- - - ----------------------

SCHEDULE 1                DISCLOSURE SCHEDULE
SCHEDULE 2                SUBSIDIARIES

EXHIBIT A                 PROMISSORY NOTE
EXHIBIT B                 REQUEST FOR ADVANCE
EXHIBIT C                 RATE ELECTION
EXHIBIT D                 CERTIFICATE ACCOMPANYING FINANCIAL STATEMENTS
EXHIBIT E                 OPINION OF BORROWER'S COUNSEL
EXHIBIT F                 STANDBY LETTER OF CREDIT APPLICATION AND AGREEMENT





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                                CREDIT AGREEMENT

         THIS CREDIT AGREEMENT is made as of August 30, 1994, by and among
Hecla Mining Company, a Delaware corporation (herein called "Borrower"),
Colorado Aggregate Company of New Mexico, Inc., a New Mexico corporation,
Kentucky-Tennessee Clay Company, a Delaware corporation, K-T Feldspar
Corporation, a North Carolina corporation, Mountain West Products, Inc., an
Idaho corporation, and NationsBank of Texas, N.A., a national banking
association (herein called "Agent"), and the Lenders referred to below.  In
consideration of the mutual covenants and agreements contained herein the
parties hereto agree as follows:

                     ARTICLE I - Definitions and References

         Section 1.1.  Defined Terms.  As used in this Agreement, each of the
following terms has the meaning given it in this Section 1.1 or in the sections
and subsections referred to below:

         "Adjusted CD Rate" means, with respect to each particular CD Portion
and the associated CD Rate and Reserve Percentage, the rate per annum
calculated by Agent (rounded upwards, if necessary, to the next higher 0.01%)
determined on a daily basis pursuant to the following formula:

         Adjusted CD Rate =

         CD Rate                     + Assessment Rate + A
         ---------------------------
         100.0% - Reserve Percentage

where A means the Spread then in effect.  The Adjusted CD Rate for any CD
Portion shall change whenever A changes, but if the Assessment Rate or the
Reserve Percentage changes during the Interest Period for a CD Portion, Agent
may, at its option, either change the Adjusted CD Rate for such CD Portion or
leave it unchanged for the duration of such Interest Period.  The Adjusted CD
Rate shall in no event, however, exceed the Highest Lawful Rate.

         "Adjusted LIBOR Rate" means, with respect to each particular LIBOR
Portion and the associated LIBOR Rate and Reserve Percentage, the rate per
annum calculated by Agent (rounded upwards, if necessary, to the next higher
0.01%) determined on a daily basis pursuant to the following formula:

         Adjusted LIBOR Rate =

         LIBOR Rate                   + B
         ---------------------------
         100.0% - Reserve Percentage

where B means the Spread then in effect.  The Adjusted LIBOR Rate for any LIBOR
Portion shall change whenever B changes, but if the Reserve Percentage changes
during the Interest Period for a LIBOR Portion, Agent may, at its option,
either change the Adjusted LIBOR Portion or leave it unchanged for the duration
of such Interest Period.  The Adjusted LIBOR Rate shall in no event, however,
exceed the Highest Lawful Rate.
   5
         "Advance" has the meaning given it in Section 2.1.

         "Affiliate" means, as to any Person, each other Person that directly
or indirectly (through one or more intermediaries or otherwise) controls, is
controlled by, or is under common control with, such Person.  A Person shall be
deemed to be "controlled by" any other Person if such other Person possesses,
directly or indirectly, power

                 (a)      to vote 20% or more of the securities (on a fully
         diluted basis) having ordinary voting power for the election of
         directors or managing general partners; or

                 (b)      to direct or cause the direction of the management
         and policies of such Person whether by contract or otherwise.

         "Agent" means NationsBank, as Agent hereunder, and its successors in
such capacity.

         "Assessment Rate" means, on any day, the net annual assessment rate,
as determined by Agent (expressed as a percentage rounded to the next higher
0.01%), which is in effect on such day under the regulations of the Federal
Deposit Insurance Corporation (or any successor) for insuring time deposits
made in dollars at the principal office of Agent in Dallas, Texas.  If such net
assessment rate changes after the date hereof, the Assessment Rate shall be
automatically increased or decreased correspondingly, from time to time as of
the effective time of each change in such net assessment rate.

         "Base Rate" means (a) on each day during the Commitment Period, (i)
the Prime Rate if the Loan Balance is equal to or less than $20,000,000 and
(ii) the Prime Rate plus 0.125% per annum if the Loan Balance is greater than
$20,000,000, and (b) on each day thereafter (iii) the Prime Rate plus 0.125%
per annum if the Loan Balance is equal to or less than $20,000,000 and (iv) the
Prime Rate plus 0.25% per annum if the Loan Balance is greater than
$20,000,000.  If the Prime Rate or the Loan Balance changes after the date
hereof, the Base Rate shall be automatically increased or decreased, as the
case may be, without notice to Borrower from time to time as of the effective
time of each change in the Prime Rate or the Loan Balance.  The Base Rate shall
in no event, however, exceed the Highest Lawful Rate.

         "Base Rate Portion" means that portion of the unpaid principal balance
of the Loan which is not made up of Fixed Rate Portions.

         "Borrower" means Hecla Mining Company, a Delaware corporation.

         "Business Day" means a day, other than a Saturday or Sunday, on which
commercial banks are open for business with the public in Dallas, Texas.  Any
Business Day in any way relating to CD





                                      -2-
   6
Portions (such as the day on which a CD Interest Period begins or ends) must
also be a day on which, in the judgment of Agent, significant transactions are
carried out in the market for certificates of deposit.  Any Business Day in any
way relating to LIBOR Portions (such as the day on which a LIBOR Interest
Period begins or ends) must also be a day on which, in the judgment of Agent,
significant transactions in dollars are carried out in the interbank
eurocurrency market.

         "Cash Collateral" has the meaning given it in Section 2A.8.

         "Cash Earnings" means as of the end of any Fiscal Quarter, Borrower's
Consolidated net income for such Fiscal Quarter, minus nonrecurring gains and
plus nonrecurring losses for such Fiscal Quarter, plus other non cash charges
taken into account in determining such net income, minus cash dividend payments
on common and preferred stock made during such Fiscal Quarter.

         "CD Interest Period" means, with respect to each particular CD Portion
of a Loan, a period of 30, 60, 90 or 180 days, as specified in the Rate
Election applicable thereto, beginning on and including the date specified in
such Rate Election (which must be a Business Day), and ending on but not
including the day which is 30, 60 or 90 days thereafter (e.g., a 30-day period
beginning on March 1 will end on but not include March 31), provided that each
CD Interest Period which would otherwise end on a day which is not a Business
Day shall end on the next succeeding Business Day.  No CD Interest Period may
be elected which would extend past the date on which the associated Note is due
and payable in full.

         "CD Portion" means any portion of the unpaid principal balance of a
Loan which Borrower designates as such in a Rate Election.

         "CD Rate" means, with respect to each particular CD Portion within a
Tranche and with respect to the related Interest Period, the rate of interest
per annum determined by Agent in accordance with its customary general
practices to be representative of the bid rates quoted to NationsBank at
approximately 9:00 a.m. Dallas, Texas time on the first day of such Interest
Period (by certificate of deposit dealers of recognized standing selected by
NationsBank in accordance with its customary general practices) for the
purchase at face value of a domestic certificate of deposit issued by
NationsBank in an amount equal or comparable to the amount of NationsBank's CD
Portion within such Tranche and for a period of time equal or comparable to
such Interest Period.  The CD Rate determined by Agent with respect to a
particular CD Portion shall be fixed at such rate for the duration of the
associated Interest Period.  If Agent is unable so to determine the CD Rate for
any CD Portion, Borrower shall be deemed not to have elected such CD Portion.





                                      -3-
   7
         "Commitment Period" means the period from and including the date
hereof until and including July 31, 1997 (or, if earlier, the day on which the
Notes first become due and payable in full).

         "Consolidated" refers to the consolidation of any Person, in
accordance with GAAP, with its properly consolidated subsidiaries.  References
herein to a Person's Consolidated financial statements, financial position,
financial condition, liabilities, etc. refer to the consolidated financial
statements, financial position, financial condition, liabilities, etc. of such
Person and its properly consolidated subsidiaries.

         "Debt" means, as to any Person, all indebtedness, liabilities and
obligations of such Person, whether matured or unmatured, liquidated or
unliquidated, primary or secondary, direct or indirect, absolute, fixed or
contingent, and whether or not required to be considered pursuant to GAAP.

         "Default" means any Event of Default and any default, event or
condition which would, with the giving of any requisite notices and the passage
of any requisite periods of time, constitute an Event of Default.

         "Disclosure Report" means either a notice given by Borrower under
Section 5.1(d) or a certificate given by Borrower's chief financial officer
under Section 5.1(b)(ii).

         "Disclosure Schedule" means Schedule 1 hereto.

         "EBITDA" means as of the end of any Fiscal Quarter, Borrower's
Consolidated net income for the four consecutive Fiscal Quarters then ended
plus interest, taxes, depreciation and amortization, nonrecurring losses and
cash reclamation charges, to the extent the foregoing have been deducted in
determining such net income, minus nonrecurring gains to the extent such gains
have been included in determining such net income.

         "Environmental Laws" means any and all federal, state, local and
foreign statutes, laws, regulations, ordinances, rules, judgments, orders,
decrees, permits, concessions, grants, franchises, licenses, agreements or
other governmental restrictions relating to the environment or to emissions,
discharges, releases or threatened releases of pollutants, contaminants,
chemicals, or industrial, toxic or hazardous substances or wastes into the
environment including ambient air, surface water, ground water, or land, or
otherwise relating to the manufacture, processing, distribution use, treatment,
storage, disposal, transport, or handling of pollutants, contaminants,
chemicals, or industrial, toxic or hazardous substances or wastes.

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended from time to time, together with all rules and regulations promulgated
with respect thereto.





                                      -4-
   8
         "ERISA Plan" means any employee pension benefit plan subject to Title
IV of ERISA maintained by any Related Person or any Affiliate thereof with
respect to which any Related Person has a fixed or contingent liability.

         "Event of Default" has the meaning given it in Section 7.1.

         "Final Maturity Date" means July 31, 1999.

         "Fiscal Quarter" means a three-month period ending on March 31, June
30, September 30 or December 31, of any year.

         "Fiscal Year" means a twelve-month period ending on December 31, of
any year.

         "Fixed Charges" means as of the end of any Fiscal Quarter, the sum of
the following for the period of four consecutive Fiscal Quarters then ended (i)
Borrower's Consolidated interest expense for such period, plus (ii) Borrower's
Consolidated long-term debt scheduled to be paid during such period, plus (iii)
Borrower's Consolidated capital lease payments paid during such period, plus
(iv) dividends on common and preferred stock declared or paid (without
duplication) by Borrower during such period, plus (v) Borrower's Consolidated
reclamation expenditures paid during such period.

         "Fixed Rate" means, with respect to any Fixed Rate Portion, the
related Adjusted CD Rate or Adjusted LIBOR Rate.

         "Fixed Rate Portion" means any CD Portion or LIBOR Portion.

         "Funded Debt" of any Person means Debt in the following categories:

                 (a)  Debt for borrowed money or gold loans (excluding hedging
         obligations) or,

                 (b)  Debt evidenced by a bond, debenture, note or similar
         instrument.

         "GAAP" means those generally accepted accounting principles and
practices which are recognized as such by the Financial Accounting Standards
Board (or any generally recognized successor) and which, in the case of
Borrower and its Consolidated subsidiaries, are applied for all periods after
the date hereof in a manner consistent with the manner in which such principles
and practices were applied to the audited Initial Financial Statements.  If any
change in any accounting principle or practice is required by the Financial
Accounting Standards Board (or any such successor) in order for such principle
or practice to continue as a generally accepted accounting principle or
practice, all reports and financial statements required hereunder with respect
to Borrower or with respect to Borrower and its Consolidated subsidiaries may
be prepared in accordance with such change, but all calculations and
determinations to be





                                      -5-
   9
made hereunder may be made in accordance with such change only after notice of
such change is given to each Lender and Majority Lenders and Borrower agree to
such change insofar as it affects the accounting of Borrower or of Borrower and
its Consolidated subsidiaries.

         "Guaranties" means, as to any Person, any direct or indirect guaranty
by such Person in respect of, or obligation (contingent or otherwise) to
purchase or otherwise acquire, or to otherwise assure a creditor against loss
in respect of, Debt of any other Person.

         "Hazardous Materials" means any substances regulated under any
Environmental Law, whether as pollutants, contaminants, or chemicals, or as
industrial, toxic or hazardous substances or wastes, or otherwise.

         "Highest Lawful Rate" means, with respect to each Lender, the maximum
nonusurious rate of interest that such Lender is permitted under applicable law
to contract for, take, charge, or receive with respect to its Loan.  All
determinations herein of the Highest Lawful Rate, or of any interest rate
determined by reference to the Highest Lawful Rate, shall be made separately
for each Lender as appropriate to assure that the Loan Documents are not
construed to obligate any Person to pay interest to any Lender at a rate in
excess of the Highest Lawful Rate applicable to such Lender.

         "Initial Financial Statements" means (i) the audited annual
Consolidated financial statements of Borrower dated as of December 31, 1993,
and (ii) the unaudited quarterly Consolidated financial statements of Borrower
dated as of June 30, 1994.

         "Interest Period" means, with respect to any Fixed Rate Portion, the
related CD Interest Period or LIBOR Interest Period.

         "Issuing Bank" means NationsBank in its capacity as the issuer of
Letters of Credit hereunder, and its successors in such capacity.

         "Late Payment Rate" means, at the time in question, four percent
(4.0%) per annum plus the Base Rate then in effect.  The Late Payment Rate
shall in no event, however, exceed the Highest Lawful Rate.

         "LC Applications" means any applications for letters of credit
heretofore or hereafter made by Borrower to Issuing Bank.

         "LC Collateral Account" has the meaning given it in Section 2A.8(b).

         "LC Obligations" means at the time in question, the sum of the Matured
LC Obligations plus the Maximum Drawing Amount.





                                      -6-
   10
         "Lenders" means each signatory hereto (other than Borrower and the
Subsidiary Guarantors), including NationsBank in its capacity as a lender
hereunder rather than as Agent, and the successors of each as holder of a Note.

         "Letters of Credit" means the standby letters of credit issued by
Issuing Bank at the application of Borrower.

         "LIBOR Interest Period" means, with respect to each particular LIBOR
Portion, a period of 1, 2, 3 or 6 months, as specified in the Rate Election
applicable thereto, beginning on and including the date specified in such Rate
Election (which must be a Business Day), and ending on but not including the
same day of the month as the day on which it began (e.g., a period beginning on
the third day of one month shall end on but not include the third day of
another month), provided that each LIBOR Interest Period which would otherwise
end on a day which is not a Business Day shall end on the next succeeding
Business Day (unless such next succeeding Business Day is the first Business
Day of a calendar month, in which case such LIBOR Interest Period shall end on
the immediately preceding Business Day).  No LIBOR Interest Period may be
elected which would extend past the date on which the associated Note is due
and payable in full.

         "LIBOR Portion" means any portion of the unpaid principal balance of a
Loan which Borrower designates as such in a Rate Election.

         "LIBOR Rate" means, with respect to each particular LIBOR Portion
within a Tranche and with respect to the related Interest Period, the rate of
interest per annum determined by Agent in accordance with its customary general
practices to be representative of the rates at which deposits of dollars are
offered to NationsBank at approximately 9:00 a.m. Dallas, Texas time two
Business Days prior to the first day of such Interest Period (by prime banks in
the interbank eurocurrency market which have been selected by NationsBank in
accordance with its customary general practices) for delivery on the first day
of such Interest Period in an amount equal or comparable to the amount of
NationsBank's LIBOR Portion within such Tranche and for a period of time equal
or comparable to the length of such Interest Period.  The LIBOR Rate determined
by NationsBank with respect to a particular LIBOR Portion shall be fixed at
such rate for the duration of the associated Interest Period.  If Agent is
unable so to determine the LIBOR Rate for any LIBOR Portion, Borrower shall be
deemed not to have elected such LIBOR Portion.

         "Lien" means, with respect to any property or assets, any right or
interest therein of a creditor to secure Debt owed to him or any other
arrangement with such creditor which provides for the payment of such Debt out
of such property or assets or which allows him to have such Debt satisfied out
of such property or assets prior to the general creditors of any owner thereof,
including any lien, mortgage, security interest, pledge, deposit, production
payment, rights of a vendor under any title retention





                                      -7-
   11
or conditional sale agreement or lease substantially equivalent thereto, tax
lien, mechanic's or materialman's lien, or any other charge or encumbrance for
security purposes, whether arising by law or agreement or otherwise, but
excluding any right of offset which arises without agreement in the ordinary
course of business.  "Lien" also means any filed financing statement, any
registration of a pledge (such as with an issuer of uncertificated securities),
or any other arrangement or action which would serve to perfect a Lien
described in the preceding sentence, regardless of whether such financing
statement is filed, such registration is made, or such arrangement or action is
undertaken before or after such Lien exists.

         "Loan" has the meaning given it in Section 2.1.

         "Loan Balance" means the aggregate unpaid principal balance of the
Loans at the time in question.

         "Loan Documents" means this Agreement, the Notes, the LC Applications
and all other agreements, certificates, documents, instruments and writings at
any time delivered in connection herewith or therewith (exclusive of term
sheets, commitment letters, correspondence and similar documents used in the
negotiation hereof, except to the extent the same contain information about
Borrower or its Affiliates, properties, business or prospects).

         "Long-term LC" means a Letter of Credit having an expiration date
after the last day of the Commitment Period which has been agreed to by
Majority Lenders pursuant to Section 2A.8(b).

         "Material Subsidiary" means each Subsidiary of Borrower that is
designated as a "Material Subsidiary" on Schedule 2 attached hereto.

         "Majority Lenders" means at any time Lenders collectively having
Percentage Shares totalling in the aggregate at least sixty-six and two-thirds
percent (66 2/3%).

         "Matured LC Obligations" means all amounts paid by Issuing Bank under
or reasonably purported to be under any Letter of Credit or under any LC
Application which have not been repaid to Issuing Bank.

         "Maximum Drawing Amount" means the aggregate amounts which Issuing
Bank might be called upon to advance under all Letters of Credit issued at the
application of Borrower then outstanding.

         "Maximum Guaranteed Amount" means with respect to any Subsidiary
Guarantor as of the date of determination, the lesser of (a) the amount of the
Obligations outstanding on such date and (b) the maximum amount which would not
result in such Subsidiary





                                      -8-
   12
Guarantor's liability under Article VIA constituting a fraudulent transfer or
fraudulent conveyance under applicable state or federal law as determined by a
court of competent jurisdiction.

         "Maximum Loan Amount" means the amount of $40,000,000.

         "NationsBank" means NationsBank of Texas, N.A. and its successors and
assigns.

         "Note" has the meaning given it in Section 2.1.

         "Obligations" means all Debt from time to time owing by any of the
Related Persons to Agent or any Lender under or pursuant to any of the Loan
Documents, including without limitation all LC Obligations.  "Obligation" means
any part of the Obligations.

         "Percentage Share" means, with respect to any Lender (a) when used in
Sections 2.1 or 2.4, in any Request for Advances or when no Loans are
outstanding hereunder, the percentage set forth opposite such Lender's name on
the signature pages of this Agreement, and (b) when used otherwise, the
percentage obtained by dividing (i) the sum of the unpaid principal balance of
such Lender's Loan at the time in question plus the Matured LC Obligations
which such Lender has funded pursuant to Section 2A.3(b) plus the portion of
the Maximum Drawing Amount which such Lender might be obligated to fund under
Section 2A.3(b), divided by (ii) the sum of the aggregate unpaid principal
balance of all Loans at such time plus the aggregate amount of LC Obligations
outstanding at such time.

         "Permitted Debt" means Funded Debt which matures after the Final
Maturity Date and is not subject to terms which are more restrictive than the
terms and conditions set forth in this Agreement, as determined by Majority
Lenders in their sole discretion.

         "Permitted Investments" means investments of up to $5,000,000, plus
investments:

                 (a)      in open market commercial paper, maturing within 270
         days after acquisition thereof, which has the highest or second
         highest credit rating given by either Standard & Poor's Corporation or
         Moody's Investors Service, Inc.

                 (b)      in marketable obligations, maturing within 24 months
         after acquisition thereof, issued or unconditionally guaranteed by the
         United States of America or an instrumentality or agency thereof and
         entitled to the full faith and credit of the United States of America.

                 (c)      in demand deposits, and time deposits (including
         certificates of deposit) maturing within 24 months from the date of
         deposit thereof, with (i) any office of any Lender, (ii) a domestic
         office of any national or state bank or trust company which is
         organized under the laws of the





                                      -9-
   13
         United States of America or any state therein, which has capital,
         surplus and undivided profits of at least $500,000,000, and whose
         certificates of deposit have at least the third highest credit rating
         given by either Standard & Poor's Corporation or Moody's Investors
         Service, Inc. or (iii) any other bank, provided that the aggregate
         amount of all such deposits with all such other banks under this
         clause (iii) shall not at any time exceed $5,000,000.

                 (d)      in Subsidiary Guarantors.

                 (e)      consisting of acquisitions of existing businesses
         which are engaged in the business activities that are the same or
         similar to those engaged in by Borrower and Subsidiary Guarantors.

                 (f)      consisting of acquisitions of assets which are used
         in businesses engaged in the business activities that are the same or
         similar to those engaged in by Borrower and Subsidiary Guarantors.

         "Person" means an individual, corporation, partnership, limited
liability company, association, joint stock company, trust or trustee thereof,
estate or executor thereof, unincorporated organization or joint venture, court
or governmental unit or any agency or subdivision thereof, or any other legally
recognizable entity.

         "Prime Rate" means the rate of interest established by NationsBank
from time to time as its "prime rate".  Such rate is set by NationsBank as a
general reference rate of interest, taking into account such factors as it may
deem appropriate, it being understood that many of NationsBank's commercial or
other loans are priced in relation to such rate, that it is not necessarily the
lowest or the best rate actually charged to any customer, that it may not
correspond with further increases or decreases in interest rates charged by
other lenders or market rates in general and that NationsBank may make various
commercial or other loans at rates of interest having no relationship to such
rate.

         "Prohibited Lien" means any Lien not expressly allowed under Section
5.2(b).

         "Rate Election" has the meaning given it in Section 2.4.

         "Regulation D" means Regulation D of the Board of Governors of the
Federal Reserve System as from time to time in effect.

         "Related Person" means any of Borrower, each Subsidiary Guarantor and
each other Material Subsidiary of Borrower.

         "Request for Advance" means a written or telephonic request, or a
written confirmation, made by Borrower which meets the requirements of Section
2.2.





                                      -10-
   14
         "Reserve Percentage" means, on any day with respect to each particular
Fixed Rate Portion in a Tranche, the maximum reserve requirement, as determined
by Agent (including without limitation any basic, supplemental, marginal,
emergency or similar reserves), expressed as a percentage and rounded to the
next higher 0.01%, which would then apply to NationsBank under Regulation D
with respect to: (a) if such Fixed Rate Portion is a CD Portion, any new
nonpersonal time deposit (as defined in Regulation D) equal in amount to
NationsBank's Fixed Rate Portion in such Tranche and with a maturity comparable
to the associated Interest Period, were NationsBank to take such a deposit, and
(b) if such Fixed Rate Portion is a LIBOR Portion, "Eurocurrency liabilities"
(as such term is defined in Regulation D) equal in amount to NationsBank's
Fixed Rate Portion in such Tranche, were NationsBank to have any such
"Eurocurrency liabilities".  If such reserve requirement shall change after the
date hereof, the Reserve Percentage shall be automatically increased or
decreased, as the case may be, from time to time as of the effective time of
each such change in such reserve requirement.

         "Spread" means (i) on each day during the Commitment Period, 0.80% per
annum if the Loan Balance is equal to or less than $20,000,000, and 0.925% per
annum if the Loan Balance is greater than $20,000,000 and (ii) on each day
thereafter 0.925% per annum if the Loan Balance is equal to or less than
$20,000,000, and 1.05% per annum if the Loan Balance is greater than
$20,000,000.

         "Subsidiary Guarantor" means any Subsidiary who has guaranteed some or
all of the Obligations pursuant to Article VIA.

         "Subsidiary" means, with respect to any Person, any corporation,
association, partnership, joint venture, or other business or corporate entity,
enterprise or organization which is directly or indirectly (through one or more
intermediaries) controlled by or owned fifty percent or more by such Person.

         "Termination Event" means (a) the occurrence with respect to any ERISA
Plan of (i) a reportable event described in Sections 4043(b)(5) or (6) of ERISA
or (ii) any other reportable event described in Section 4043(b) of ERISA other
than a reportable event not subject to the provision for 30-day notice to the
Pension Benefit Guaranty Corporation pursuant to a waiver by such corporation
under Section 4043(a) of ERISA, or (b) the withdrawal of any Related Person or
of any Affiliate of any Related Person from an ERISA Plan during a plan year in
which it was a "substantial employer" as defined in Section 4001(a)(2) of
ERISA, or (c) the filing of a notice of intent to terminate any ERISA Plan or
the treatment of any ERISA Plan amendment as a termination under Section 4041
of ERISA, or (d) the institution of proceedings to terminate any ERISA Plan by
the Pension Benefit Guaranty Corporation under Section 4042 of ERISA, or (e)
any other event or condition which might constitute grounds under Section 4042
of ERISA for the termination of, or the appointment of a trustee to administer,
any ERISA Plan.





                                      -11-
   15
         "Third Party Funds" has the meaning given it in Section 2A.8.

         "Total Debt" means Borrower's Consolidated Debt in the following
categories:

                 (a)      Obligations;

                 (b)      Funded Debt (other than the Obligations);

                 (c)      Debt constituting principal under leases capitalized
         in accordance with GAAP;

                 (d)      Debt with respect to letters of credit or
         applications or reimbursement agreements therefor (other than the
         Obligations); and

                 (e)      Debt with respect to any operating, reclamation or
         other bond not secured in whole or in part by a letter of credit or
         cash deposit.

         "Total Debt to Cash Earnings Ratio" means as of the end of any Fiscal
Quarter, the ratio of (i) Borrower's Consolidated Total Debt at the end of such
Fiscal Quarter to (ii) the sum of Borrower's Consolidated Cash Earnings for the
two consecutive Fiscal Quarters then ended plus the projected Cash Earnings for
Borrower and its Consolidated subsidiaries for the immediately succeeding two
Fiscal Quarters as set forth in the cash flow projections delivered to Agent
and approved by Majority Lenders in accordance with Section 2.8(b).

         "Tranche" has the meaning given it in Section 2.4.

         Section 1.2.  Exhibits and Schedules.  All Exhibits and Schedules
attached to this Agreement are a part hereof for all purposes.

         Section 1.3.  Amendment of Defined Instruments.  Unless the context
otherwise requires or unless otherwise provided herein the terms defined in
this Agreement which refer to a particular agreement, instrument or document
also refer to and include all renewals, extensions, modifications, amendments
and restatements of such agreement, instrument or document, provided that
nothing contained in this section shall be construed to authorize any such
renewal, extension, modification, amendment or restatement.

         Section 1.4.  References and Titles.  All references in this Agreement
to Exhibits, Schedules, articles, sections, subsections and other subdivisions
refer to the Exhibits, Schedules, articles, sections, subsections and other
subdivisions of this Agreement unless expressly provided otherwise.  Titles
appearing at the beginning of any subdivisions are for convenience only and do
not constitute any part of such subdivisions and shall be disregarded in
construing the language contained in such subdivisions.  The words "this
Agreement", "this instrument",





                                      -12-
   16
"herein", "hereof", "hereby", "hereunder" and words of similar import refer to
this Agreement as a whole and not to any particular subdivision unless
expressly so limited.  The phrases "this section" and "this subsection" and
similar phrases refer only to the sections or subsections hereof in which such
phrases occur.  The word "or" is not exclusive, and the word "including" (in
its various forms) means "including without limitation".  Pronouns in
masculine, feminine and neuter genders shall be construed to include any other
gender, and words in the singular form shall be construed to include the plural
and vice versa, unless the context otherwise requires.

         Section 1.5.  Calculations and Determinations.  All calculations under
the Loan Documents of fees and of interest shall be made on the basis of actual
days elapsed (including the first day but excluding the last) and a year of 360
days.  Each determination by Agent or a Lender of amounts to be paid under
Sections 2.10 through 2.14 or any other matters which are to be determined
hereunder by Agent or a Lender (such as any Adjusted CD Rate, Adjusted LIBOR
Rate, Assessment Rate, CD Rate, LIBOR Rate, Business Day, Interest Period, or
Reserve Percentage) shall, in the absence of manifest error, be conclusive and
binding.  Unless otherwise expressly provided herein or unless Majority Lenders
otherwise consent all financial statements and reports furnished to Agent or
any Lender hereunder shall be prepared and all financial computations and
determinations pursuant hereto shall be made in accordance with GAAP.


                             ARTICLE II - The Loans

         Section 2.1.  Advances.  Subject to the terms and conditions hereof,
each Lender agrees to make advances to Borrower (herein called such Lender's
"Advances") upon request from time to time during the Commitment Period so long
as (a) each Advance by such Lender does not exceed such Lender's Percentage
Share of the aggregate amount of Advances then requested from all Lenders, and
(b) the sum of (i) the aggregate amount of such Lender's Advances outstanding
at any time plus (ii) the Maximum Drawing Amount for which such Lender is
liable by virtue of Section 2A.3(b), plus (iii) the Matured LC Obligations
which have been funded by such Lender under such section, does not exceed such
Lender's Percentage Share of the Maximum Loan Amount determined as of the date
on which the requested Advance is to be made and (c) the making of such Advance
does not cause the Total Debt to Cash Earnings Ratio to exceed 4.0 to 1.0
(calculated using Total Debt as of the date of such Advance, and including the
amount of such Advance, and using Cash Earnings as of the end of the most
recent Fiscal Quarter).  The aggregate amount of all Advances requested of all
Lenders in any Request for Advance must be greater than or equal to $500,000 or
must equal the unadvanced portion of the Maximum Loan Amount.  The obligation
of Borrower to repay to each Lender the aggregate amount of all Advances made
by such Lender (herein called such Lender's "Loan"), together with interest
accruing in connection therewith, shall be evidenced by a single





                                      -13-
   17
promissory note (herein called such Lender's "Note") made by Borrower payable
to the order of such Lender in the form of Exhibit A with appropriate
insertions.  The amount of principal owing on any Lender's Note at any given
time shall be the aggregate amount of all Advances theretofore made by such
Lender minus all payments of principal theretofore received by such Lender on
such Note.  Interest on each Note shall accrue and be due and payable as
provided herein and therein.  Subject to the terms and conditions hereof,
Borrower may borrow, repay, and reborrow hereunder.

         Section 2.2.  Requests for Advances.  Borrower must give to Agent at
least one Business Day's prior written notice, or telephonic notice promptly
confirmed in writing, of any requested Advances, after which Agent shall give
each Lender prompt notice thereof.  Each such written request or confirmation
must be made in the form and substance of the "Request for Advance" attached
hereto as Exhibit B, duly completed.  Each such telephonic request shall be
deemed a representation, warranty, acknowledgment and agreement by Borrower as
to the matters which are required to be set out in such written confirmation.
Notwithstanding the foregoing provisions of this Section 2.2, each payment of a
draft or demand for payment under a Letter of Credit honored by Issuing Bank
shall constitute a Request for Advance in the amount of such payment.  If all
conditions precedent to the Advances requested in any manner described above
have been met, each Lender will on the date requested promptly remit to Agent
at Agent's office in Dallas, Texas the amount of such Lender's Advance in
immediately available funds, and upon receipt of such funds, unless to its
actual knowledge any conditions precedent to such Advances have been neither
met nor waived as provided herein, Agent shall promptly make the Advances
available to Borrower.  Each Request for Advance shall be irrevocable and
binding on Borrower.  Unless Agent shall have received prompt notice from a
Lender that such Lender will not make available to Agent such Lender's Advance,
Agent may in its discretion assume that such Lender has made such Advance
available to Agent in accordance with this section and Agent may if it chooses,
in reliance upon such assumption, make such Advance available to Borrower.  If
and to the extent such Lender shall not so make its Advance available to Agent,
such Lender and Borrower severally agree to pay or repay to Agent within three
days after demand the amount of such Advance together with interest thereon,
for each day from the date such amount is made available to Borrower until the
date such amount is paid or repaid to Agent, at the interest rate applicable at
the time to the other Advances made on such date.  The failure of any Lender to
make any Advance to be made by it hereunder shall not relieve any other Lender
of its obligation hereunder, if any, to make its Advance, but no Lender shall
be responsible for the failure of any other Lender to make any Advance to be
made by such other Lender.

         Section 2.3.  Use of Proceeds.  Borrower shall use all funds from
Advances to finance the development of mineral reserves and





                                      -14-
   18
other capital expenditures (including acquisitions) of Borrower and the
Subsidiary Guarantors and to provide working capital for the operations of
Borrower and the Subsidiary Guarantors and for other general business purposes,
including but not limited to extending credit to the Subsidiary Guarantors for
such purposes.  In no event shall the funds from any Advance be used directly
or indirectly by any Persons for personal, family, household or agricultural
purposes or for the purpose, whether immediate, incidental or ultimate, of
purchasing, acquiring or carrying any "margin stock" or any "margin securities"
(as such terms are defined respectively in Regulation U and Regulation G
promulgated by the Board of Governors of the Federal Reserve System) or to
extend credit to others directly or indirectly for the purpose of purchasing or
carrying any such margin stock or margin securities.  Borrower represents and
warrants that Borrower is not engaged principally, or as one of Borrower's
important activities, in the business of extending credit to others for the
purpose of purchasing or carrying such margin stock or margin securities.

         Section 2.4.  Rate Elections.  Borrower may from time to time
designate all or any portions of the Loans (including any yet to be made
Advances which are to be made prior to or at the beginning of the designated
Interest Period but excluding any portions of the Loans which are required to
be repaid prior to the end of the designated Interest Period) as a "Tranche",
which term refers to a set of Fixed Rate Portions of the same type (either CD
Portions or LIBOR Portions) with identical Interest Periods and with each
Lender participating in such Tranche in accordance with its Percentage Share.
Without the consent of Majority Lenders, Borrower may make no such election
during the continuance of a Default, and Borrower may make such an election
with respect to already existing Fixed Rate Portions only if such election will
take effect at or after the termination of the Interest Period applicable
thereto.  Each election by Borrower of a Tranche shall:

                 (a)  Be made in writing in the form and substance of the "Rate
         Election" attached hereto as Exhibit C, duly completed;

                 (b)  Specify the aggregate amount of the Loans which Borrower
         desires to designate as such Tranche, whether such Tranche is to
         consist of LIBOR Portions or CD Portions, the first day of the
         Interest Period which is to apply thereto, and the length of such
         Interest Period; and

                 (c)  If relating to CD Portions, be received by Agent not
         later than 11:00 a.m., Dallas, Texas time, on the first Business Day
         immediately preceding the first day of the specified Interest Period,
         and if relating to a LIBOR Portion, be received by Agent not later
         than 11:00 a.m., Dallas, Texas time, on the third Business Day
         preceding the first day of the specified Interest Period.





                                      -15-
   19
Promptly after receiving any such election (herein called a "Rate Election")
which meets the requirements of this section, Agent shall notify each Lender
thereof.  Each Rate Election shall be irrevocable.  Borrower may make no Rate
Election which does not specify an Interest Period complying with the
definition of "CD Interest Period" or "LIBOR Interest Period" in Section 1.1,
and the aggregate amount of the Tranche elected in any Rate Election must be
$2,000,000 or a higher integral multiple of $1,000,000. Upon the termination of
each Interest Period the portion of each Loan within the related Tranche shall,
unless the subject of a new Rate Election then taking effect, automatically
become a part of the Base Rate Portion of such Loan and become subject to all
provisions of the Loan Documents governing such Base Rate Portion.  Borrower
shall have no more than ten (10) Tranches in effect at any time.

         Section 2.5.  Facility Fees.  In consideration of each Lender's
commitment to make Advances, Borrower will pay to Agent for the account of
Lenders a nonrefundable annual facility fee in the amount of 0.325% of the
Maximum Loan Amount.  Each such fee shall be payable in advance, on the date
hereof and on each anniversary of the date hereof until this Agreement shall
have been terminated.

         Section 2.6.  Agent's Fees.  In addition to all other amounts due to
Agent under the Loan Documents, Borrower will pay a non-refundable annual fee
in an amount agreed to by Agent and Borrower.  Each such fee shall be payable
in advance, on the date hereof and on each anniversary of the date hereof until
this Agreement shall have been terminated.

         Section 2.7.  Optional Prepayments.  Borrower may, upon one Business
Day's notice to each Lender, from time to time and without premium or penalty
prepay the Notes, in whole or in part, so long as the aggregate amounts of all
partial prepayments of principal on the Notes equals $500,000 or any higher
integral multiple of $500,000, so long as Borrower does not prepay any Fixed
Rate Portion.  Each partial prepayment of principal made after the end of the
Commitment Period shall be applied to the regular installments of principal due
under the Notes in the inverse order of their maturities.  Each prepayment of
principal under this section shall be accompanied by all interest then accrued
and unpaid on the principal so prepaid.  Any principal or interest prepaid
pursuant to this section shall be in addition to, and not in lieu of, all
payments otherwise required to be paid under the Loan Documents at the time of
such prepayment.

         Section 2.8.  Mandatory Prepayments; Determination of Total Debt to
Cash Earnings Ratio.

         (a)     If the Total Debt to Cash Earnings Ratio exceeds 4.0 to 1.0 as
of the end of any Fiscal Quarter, Borrower shall make a prepayment of the Loan
Balance to Agent for distribution to Lenders in the amount necessary to cause
the Total Debt to Cash Earnings Ratio to be equal to or less than 4.0 to 1.0
(in this





                                      -16-
   20
section called the "Required Prepayment Amount"), all in accordance with the
following provisions of this Section 2.8.  Before the end of the second
calendar month immediately following such Fiscal Quarter, Borrower shall give
written notice to Agent electing to pay the Required Prepayment Amount to Agent
for distribution to Lenders either (i) on the last day of the next calendar
month or (ii) in six (6) equal consecutive monthly installments due on the last
day of each of the next six calendar months beginning with the month following
the month in which such election is made.  (For example, if the Total Debt to
Cash Earnings Ratio as of the end of the Fiscal Quarter ended September 30,
1994 were to exceed 4.0 to 1.0, Borrower would be required to elect by November
30, 1994 whether to pay the full Required Prepayment Amount on December 31,
1994 or to pay the Required Prepayment Amount in six equal consecutive
installments beginning on December 31, 1994.)  If such installment payments are
elected, Borrower shall pay each such installment when due.  Each such
prepayment made after the end of the Commitment Period shall be applied to the
regular installments of principal due under the Notes in the inverse order of
their maturities.  Each prepayment of principal under this section shall be
accompanied by all interest then accrued and unpaid on the principal so
prepaid.  Any principal or interest prepaid pursuant to this section shall be
in addition to, and not in lieu of, all payments otherwise required to be paid
under the Loan Documents at the time of such prepayment.

         (b)     Agent and Lenders shall review the cash flow projections and
supporting information delivered pursuant to Section 5.1(b)(iii) (the "Borrower
Projections") and determine whether to approve the Borrower Projections for
purposes of calculating the Total Debt to Cash Earnings Ratio, which approval
shall not be unreasonably withheld.  Within ten (10) days after receipt of the
Borrower Projections, Agent shall notify Borrower whether Majority Lenders have
approved the Borrower Projections, and if not approved (i) the reason for
withholding such approval and (ii) the Borrower Projections, as adjusted by
Majority Lenders in their reasonable discretion, as they deem necessary based
on the information concerning Borrower then available to Majority Lenders (the
"Adjusted Projections").  In the event that Majority Lenders do not approve the
Borrower Projections:

         (1)     the Adjusted Projections shall be used to calculate the Total
                 Debt to Cash Earnings Ratio for the Fiscal Quarter in question
                 to determine any Required Prepayment Amount for such Fiscal
                 Quarter as set forth in Section 2.8(a) above;

         (2)     Borrower, Agent and Majority Lenders will use their best
                 efforts to reach agreement as to such projections, and in
                 furtherance thereof, Lenders agree that upon the request of
                 Borrower, Lenders will consult with an independent mining
                 consultant regarding such projections, provided that the fees
                 and expenses of such consultant shall be paid by Borrower;





                                      -17-
   21
         (3)     If Majority Lenders and Borrower subsequently agree as to cash
                 flow projections for the Fiscal Quarter in question (the
                 "Agreed Projections"), the Agreed Projections shall be used to
                 recalculate the Total Debt to Cash Earnings Ratio for such
                 Fiscal Quarter to determine any Required Prepayment Amount for
                 such Fiscal Quarter as set forth in Section 2.8(a) above; and

         (4)     In the event that (A) the aggregate amount of payments made by
                 Borrower pursuant to Section 2.8(a) hereof based upon a
                 Required Prepayment Amount for any Fiscal Quarter determined
                 pursuant to clause (1) above, exceeds (B) the Required
                 Prepayment Amount for such Fiscal Quarter as redetermined
                 pursuant to clause (3) above, Lenders shall promptly refund
                 such excess to Borrower.

In the event that cash flow projections are not delivered to Agent as required
under Section 5.1(b)(iii) for any Fiscal Quarter, Majority Lenders shall
themselves make such a cash flow projection for the relevant period based on
the information concerning Borrower then available to Majority Lenders, which
shall be used in calculating the Total Debt to Cash Earnings Ratio; provided
that any such determination by Majority Lenders shall not constitute any waiver
of any Default or Event of Default arising out of such failure to deliver such
projections.

         Section 2.9.  Payments to Lenders.  Borrower will make each payment
which it owes under the Loan Documents to Agent for the account of the Lender
to whom such payment is owed.  Each such payment must be received by Agent not
later than 11:00 a.m., Dallas, Texas time, on the date such payment becomes due
and payable, in lawful money of the United States of America, without set-off,
deduction or counterclaim, and in immediately available funds.  Any payment
received by Agent after such time will be deemed to have been made on the next
following Business Day.  Should any such payment become due and payable on a
day other than a Business Day, the maturity of such payment shall be extended
to the next succeeding Business Day, and, in the case of a payment of principal
or past due interest, interest shall accrue and be payable thereon for the
period of such extension as provided in the Loan Document under which such
payment is due.  Each payment under a Loan Document shall be due and payable at
the place provided therein and, if no specific place of payment is provided,
shall be due and payable at the place of payment of Agent's Note.  When Agent
collects or receives money on account of the Obligations, Agent shall
distribute all money so collected or received, and Lenders shall apply all such
money they receive from Agent, as follows:

                 (a)  first, for the payment of all Obligations which are then
         due (and if such money is insufficient to pay all such Obligations,
         first to any reimbursements due Agent under Section 5.1(i) or (j) and
         then to the partial payment





                                      -18-
   22
         of all other Obligations then due in proportion to the amounts
         thereof, or as Lenders shall otherwise agree);

                 (b)  then for the prepayment of amounts owing under the Loan
         Documents (other than principal on the Notes) if so specified by
         Borrower;

                 (c)  then for the prepayment of principal on the Notes,
         together with accrued and unpaid interest on the principal so prepaid;
         and

                 (d)  last, for the payment or prepayment of any other
         Obligations.

All payments applied to principal or interest on any Note shall be applied
first to any interest then due and payable, then to principal then due and
payable, and last to any prepayment of principal and interest in compliance
with Section 2.7.  All distributions of amounts described in any of subsections
(b), (c) or (d) above shall be made by Agent pro rata to Agent and each Lender
then owed Obligations described in such subsection in proportion to all amounts
owed to Agent and all Lenders which are described in such subsection.

         Section 2.10.  Capital Reimbursement.  If at any time after the date
hereof, and from time to time, any Lender determines that the adoption or
modification of any applicable law, rule or regulation regarding taxation, such
Lender's required levels of reserves, deposits, insurance or capital (including
any allocation of capital requirements or conditions), or similar requirements,
or any interpretation or administration thereof by any governmental authority,
central bank or comparable agency charged with the interpretation,
administration or compliance of such Lender with any of such requirements, has
or would have the effect of (a) increasing such Lender's costs relating to the
Obligations owing to such Lender Lender's Commitment to make Advances or issue
Letters of Credit or Lender's participation in Issuing Banks obligations under
the Letters of Credit, or (b) reducing the yield or rate of return of such
Lender on such Obligations, to a level below that which such Lender could have
achieved but for the adoption or modification of any such requirements,
Borrower shall, within 15 days after any request sent by such Lender to
Borrower (with a copy to Agent), pay to Agent for the account of such Lender
such additional amounts as (in such Lender's sole judgment, after reasonable
computation which shall be delivered to Borrower with such request) will
compensate such Lender for such increase in costs or reduction in yield or rate
of return of such Lender.  No failure by such Lender to immediately demand
payment of any additional amounts payable under this section shall constitute a
waiver of such Lender's right to demand payment of such amounts at any
subsequent time.  Nothing herein contained shall be construed or so operate as
to require Borrower to pay any interest, fees, costs or charges not permitted
by Section 9.6.





                                      -19-
   23
         Section 2.11.  Increased Cost of Fixed Rate Portions.  If any
applicable domestic or foreign law, treaty, rule or regulation (whether now in
effect or hereinafter enacted or promulgated, including Regulation D) or any
interpretation or administration thereof by any governmental authority charged
with the interpretation or administration thereof (whether or not having the
force of law):

                 (a)      shall change the basis of taxation of payments to any
         Lender of any principal, interest, or other amounts attributable to
         any Fixed Rate Portion or otherwise due under this Agreement in
         respect of any Fixed Rate Portion (other than taxes imposed on the
         overall net income of such Lender or any lending office of such Lender
         by any jurisdiction in which such Lender or any such lending office is
         located); or

                 (b)      shall change, impose, modify, apply or deem
         applicable any reserve, special deposit or similar requirements in
         respect of any Fixed Rate Portion of any Lender (excluding those for
         which such Lender is fully compensated pursuant to adjustments made in
         the definition of Adjusted CD Rate or Adjusted LIBOR Rate) or against
         assets of, deposits with or for the account of, or credit extended by,
         such Lender; or

                 (c)      shall impose on any Lender, the certificate of
         deposit market, or the interbank eurocurrency deposit market any other
         condition relating to any Fixed Rate Portion, the result of which is
         to increase the cost to any Lender of funding or maintaining any Fixed
         Rate Portion or to reduce the amount of any sum receivable by any
         Lender in respect of any Fixed Rate Portion by an amount deemed by
         such Lender to be material,

then such Lender shall promptly notify Agent and Borrower in writing of the
happening of such event and of the amount required to compensate such Lender
for such event (on an after-tax basis, taking into account any taxes on such
compensation), whereupon (i) Borrower shall pay such amount to Agent for the
account of such Lender and (ii) Borrower may elect, by giving to Agent and
Lender not less than three Business Days' notice, to convert all (but not less
than all) of any such Fixed Rate Portion into a part of the Base Rate Portion.

         Section 2.12.  Availability.  If (a) any change in applicable laws,
treaties, rules or regulations or in the interpretation or administration
thereof of or in any jurisdiction whatsoever, domestic or foreign, shall make
it unlawful or impracticable for any Lender to fund or maintain Fixed Rate
Portions, or shall materially restrict the authority of any Lender to purchase,
sell or take certificates of deposit or offshore deposits of dollars (i.e.,
"eurodollars"), or (b) any Lender determines that matching deposits appropriate
to fund or maintain any Fixed Rate Portion are not available to it, or





                                      -20-
   24
(c) any Lender determines that the formula for calculating the Adjusted CD Rate
or Adjusted LIBOR Rate does not fairly reflect the cost to such Lender of
making or maintaining loans based on such rate, then, upon notice by such
Lender to Borrower and Agent, Borrower's right to elect Fixed Rate Portions of
such Lender's Loan shall be suspended to the extent and for the duration of
such illegality, impracticability or restriction and all Fixed Rate Portions of
such Lender's Loan (or portions thereof) which are then outstanding or are then
the subject of any Rate Election and which cannot lawfully or practicably be
maintained or funded shall immediately become or remain part of the Base Rate
Portion of such Lender's Loan.  Borrower agrees to indemnify each Lender and
hold it harmless against all costs, expenses, claims, penalties, liabilities
and damages which may result from any such change in law, treaty, rule,
regulation, interpretation or administration.  Such indemnification shall be on
an after-tax basis, taking into account any taxes imposed on the amounts paid
as indemnity.

         Section 2.13.  Funding Losses.  In addition to its other obligations
hereunder, Borrower will indemnify Agent and each Lender against, and reimburse
Agent and each Lender on demand for, any loss or expense incurred or sustained
by Agent or such Lender (including any loss or expense incurred by reason of
the liquidation or reemployment of deposits or other funds acquired by a Lender
to fund or maintain Fixed Rate Portions or Advances), as a result of (a) any
payment or prepayment (whether authorized or required hereunder or otherwise)
of all or a portion of a Fixed Rate Portion on a day other than the day on
which the applicable Interest Period ends, (b) any payment or prepayment,
whether required hereunder or otherwise, of a Loan made after the delivery, but
before the effective date, of a Rate Election, if such payment or prepayment
prevents such Rate Election from becoming fully effective, (c) the failure of
any Advance to be made or of any Rate Election to become effective due to any
condition precedent not being satisfied or due to any other action or inaction
of any Related Person, or (d) any conversion (whether authorized or required
hereunder or otherwise) of all or any portion of any Fixed Rate Portion into a
Base Rate Portion or into a different Fixed Rate Portion on a day other than
the day on which the applicable Interest Period ends.  Such indemnification
shall be on an after-tax basis, taking into account any taxes imposed on the
amounts paid as indemnity.

         Section 2.14.  Reimbursable Taxes.  Borrower covenants and agrees that:

                 (a)      Borrower will indemnify Agent and each Lender against
         and reimburse Agent and each Lender for all present and future income,
         stamp and other taxes, levies, costs and charges whatsoever imposed,
         assessed, levied or collected on or in respect of this Agreement or
         any Fixed Rate Portions (whether or not legally or correctly imposed,
         assessed, levied or collected), excluding, however, any taxes imposed
         on or measured by the overall net income of Agent or such





                                      -21-
   25
         Lender or any lending office of Agent or such Lender by any
         jurisdiction in which Agent or such Lender or any such lending office
         is located (all such non-excluded taxes, levies, costs and charges
         being collectively called "Reimbursable Taxes" in this section).  Such
         indemnification shall be on an after-tax basis, taking into account
         any taxes imposed on the amounts paid as indemnity.

                 (b)      All payments on account of the principal of, and
         interest on, each Lender's Loan and each Lender's Note, and all other
         amounts payable by Borrower to Agent and each Lender hereunder, shall
         be made in full without set-off or counterclaim and shall be made free
         and clear of and without deductions or withholdings of any nature by
         reason of any Reimbursable Taxes, all of which will be for the account
         of Borrower.  In the event of Borrower being compelled by law or other
         regulations to make any such deduction or withholding from any payment
         to Agent or any Lender, Borrower shall pay on the due date of such
         payment, by way of additional interest, such additional amounts as are
         needed to cause the amount receivable by Agent or such Lender after
         such deduction or withholding to equal the amount which would have
         been receivable in the absence of such deduction or withholding.  If
         Borrower should make any deduction or withholding as aforesaid,
         Borrower shall within 60 days thereafter forward to Agent or such
         Lender an official receipt or other official document evidencing
         payment of such deduction or withholding.

                 (c)      If Borrower is ever required to pay any Reimbursable
         Tax with respect to any Fixed Rate Portion Borrower may elect, by
         giving to Agent not less than three Business Days' notice (and Agent
         shall so notify Lenders), to convert all (but not less than all) of
         any such Fixed Rate Portion into a part of the Base Rate Portion, but
         such election shall not diminish Borrower's obligation to pay all
         Reimbursable Taxes.


                        ARTICLE IIA -- Letters of Credit

         Section 2A.1.  Letters of Credit.  Subject to the terms and conditions
hereof, Issuing Bank agrees to issue, in reliance on the agreements of Lenders
set forth in Section 2A.3(b), at Borrower's application such Letters of Credit
as Borrower may from time to time request so long as:

                 (a)  the sum of (i) the aggregate amount of LC Obligations at
         such time, plus (ii) the amount of such Letter of Credit, does not
         exceed $5,000,000;

                 (b)  the sum of (i) the aggregate amount of Advances
         outstanding at the time such Letter of Credit is issued plus (ii) the
         aggregate amount of LC Obligations at such time,





                                      -22-
   26
         plus (iii) the amount of such Letter of Credit, does not exceed the
         Maximum Drawing Amount;

                 (c)      the form and terms of such Letter of Credit are
         satisfactory to Issuing Bank in its sole and absolute discretion;

                 (d)  the expiration date of such Letter of Credit is on or
         before the Business Day immediately preceding the last day of the
         Commitment Period, unless otherwise agreed to by Majority Lenders; and

                 (e)      the issuance of such Letter of Credit shall not cause
         the Total Debt to Cash Earnings Ratio to exceed 4.0 to 1.0 (calculated
         using Total Debt as of the date of issuance of such Letter of Credit,
         and including the amount of such Letter of Credit, and using Cash
         Earnings as of the end of the most recent Fiscal Quarter).

         Section 2A.2.  Requesting Letters of Credit.  Borrower must make
written application for any Letter of Credit at least three Business Days
before such Letter of Credit is issued by Issuing Bank or if otherwise, within
the time permitted by the agreements described below in this section.  Each
such written application must be made in writing in the form and substance of
the "Standby Letter of Credit Application and Agreement" attached hereto as
Exhibit F, duly completed and signed by an Authorized Officer of Borrower, the
terms and provisions of such agreements being incorporated herein by reference.
By each such application for a Letter of Credit Borrower shall be deemed to
have made all representations and warranties set forth herein as of the date of
such application.  If all conditions precedent to the issuance of such Letter
of Credit have been met, Issuing bank will, in reliance on the agreements of
Lenders set forth in Section 2A.3(b), on the date requested, issue such Letter
of Credit at Issuing Bank's office in Dallas, Texas.  Provisions of any LC
Application shall be deemed to apply only to the related Letter of Credit;
provided, however, that any "default" or "event of default" under such LC
Application shall also constitute an Event of Default hereunder.  If any
provisions of any LC Application conflict with any provisions of this
Agreement, the provisions of this Agreement shall govern and control.

         Section 2A.3.  Reimbursement.

         (a)  Reimbursement by Borrower.  Each payment of a draft or demand for
payment honored by Issuing Bank shall constitute a loan to and obligation of
Borrower.  Borrower promises to pay to Issuing Bank, or to Issuing Bank's order
at such Issuing Bank's office in Dallas, Texas on demand, in legal tender of
the United States of America, any and all amounts paid by Issuing Bank under or
purporting to be under any Letter of Credit, together with interest on any such
amounts (i) from the date payment is made by Issuing Bank under such Letter of
Credit until and including the first Business Day following such date of
payment, at the Base





                                      -23-
   27
Rate and (ii) thereafter, provided that notice is given to Borrower of such
honor by Issuing Bank, until the repayment of such amounts to Issuing Bank, at
the Late Payment Rate.  Borrower hereby promises to pay, when due, all present
and future taxes, levies, costs and charges whatsoever imposed, assessed,
levied or collected on, under or in respect of this Agreement or any Letter of
Credit and any payments of principal, interest or other amounts made on or in
respect of any thereof (excluding, however, any such taxes, levies, costs and
charges imposed on or measured by the overall net income of Issuing Bank).
Borrower promises to indemnify Issuing Bank against, and to reimburse Issuing
Bank on demand for, any of the foregoing taxes, levies, costs or charges paid
by Issuing Bank and any loss, liability, claim or expense, including interest,
penalties and legal fees, that Issuing Bank may incur because of or in
connection with the failure of Borrower to make any such payment of taxes,
levies, costs or charges when due or any payment of Matured LC Obligation when
due.

         (b)  Participation by Lenders.  Issuing Bank irrevocably agrees to
grant and hereby grants to each Lender, and, to induce Issuing Bank to issue
Letters of Credit hereunder, each Lender irrevocably agrees to accept and
purchase and hereby accepts and purchases from Issuing Bank, on the terms and
conditions hereinafter stated, for such Lender's own account and risk an
undivided interest equal to such Lender's Percentage Share of Issuing Bank's
obligations and rights under each Letter of Credit issued hereunder and the
amount of each draft paid by Issuing Bank thereunder.  In the event that
Borrower should fail to pay Issuing Bank on demand the amount of any draft or
other request for payment drawn under or purporting to be drawn under a Letter
of Credit as provided in subsection (a) above, each Lender shall, before 2:00
p.m. (Dallas Time) on the Business Day Issuing Bank shall have given notice to
Lenders of Borrower's failure to so pay Issuing Bank, if such notice is given
by 11:00 a.m., Dallas time (or on the Business Day immediately succeeding the
day such notice is given after 11:00 a.m. Dallas time), pay to Issuing Bank at
Issuing Bank's offices in Dallas, Texas, in legal tender of the United States
of America, in same day funds, such Lender's Percentage Share of the amount of
such draft or other request for payment, plus interest on such amount (i) from
the date Issuing Bank shall have paid such draft or request for payment until
and including the first Business Day following such date of payment, at the
Base Rate and (ii) thereafter, to the date of such payment by such Lender, at
the Late Payment Rate.  Each Lender's obligation to reimburse Issuing Bank
pursuant to the terms of this Section 2A.3(b) is irrevocable and unconditional.
If any such amount required to be paid by any Lender pursuant to this Section
2A.3(b) is not in fact made available by such Lender to Issuing Bank within
three Business Days after the date such payment is due, Issuing Bank shall be
entitled to recover from such Lender, on demand, such amount required to be
paid by such Lender, plus interest thereon calculated from such due date at the
federal funds rate.  A written advice(s) setting forth in reasonable detail the
amounts owing under this Section 2A.3,





                                      -24-
   28
submitted by Issuing Bank to Borrower from time to time, shall be conclusive,
absent manifest error, as to the amounts thereof.  Whenever, at any time after
Issuing Bank has made payment under any Letter of Credit, and has received from
any Lender its Percentage Share of such payment in accordance with this Section
2A.3(b), Issuing Bank receives any payment related to such Letter of Credit
(whether directly from Borrower or otherwise, including proceeds of Cash
Collateral applied thereto by Issuing Bank), or any payment of interest on
account thereof, Issuing Bank will distribute to such Lender its Percentage
Share thereof; provided, however, that in the event that any such payment
received by Issuing Bank shall be required to be returned by Issuing Bank, such
Lender shall return to Issuing Bank the portion thereof previously distributed
by Issuing Bank to it.

         (c)  Payment of Reimbursement Obligation with Advances.  Each time
payment of a draft or demand for payment under a Letter of Credit is honored by
Issuing Bank, Borrower shall be deemed to have made a Request for Advance in
the amount of such payment pursuant to Section 2.2.  If all conditions
precedent to the making of such Advance have been satisfied and such Advance is
made, the proceeds thereof shall be applied to the payment of Borrower's
obligation to reimburse Issuing Bank for such payment.

         Section 2A.4.  Transferees of Letters of Credit.  Borrower agrees that
if any Letter of Credit provides that it is transferable, Issuing Bank is under
no duty to determine the proper identity of anyone appearing as transferee of
such Letter of Credit, nor shall Issuing Bank be charged with responsibility of
any nature or character for the validity or correctness of any transfer or
successive transfers, and payment by Issuing Bank to any purported transferee
or transferees as determined by Issuing Bank is hereby authorized and approved,
and Borrower further agrees to hold Issuing Bank and each Lender harmless and
indemnified against any liability or claim in connection with or arising out of
the foregoing.

         Section 2A.5.  Extension of Maturity.  Borrower agrees that if the
maturity of any Letter of Credit is extended by its terms or by law or
governmental action, if any extension of the maturity or time for presentation
of drafts or any other modification of the terms of any Letter of Credit is
made at the request of Borrower, or if the amount of any such Letter of Credit
is increased at the request of Borrower, subject in each case to Section 2A.1,
this Agreement shall be binding upon Borrower with respect to such Letter of
Credit as so extended, increased or otherwise modified, with respect to drafts
and property covered thereby, and with respect to any action taken by Issuing
Bank or any of Issuing Bank's correspondents in accordance with such extension,
increase or other modification.

         Section 2A.6.  Restriction on Liability.  The users of each Letter of
Credit shall be deemed the agents of Borrower and neither Issuing Bank, nor its
correspondents shall be responsible for:





                                      -25-
   29
                 (a)  the use which may be made of any Letter of Credit or for
         any actions or omissions of the users of any Letter of Credit;

                 (b)  the existence or nonexistence of a default under any
         instrument secured or supported by any Letter of Credit or any other
         event which gives rise to a right to call upon any Letter of Credit;

                 (c)  the validity, sufficiency or genuineness of any document
         delivered in connection with any Letter of Credit, even if such
         document should in fact prove to be in any or all respects invalid,
         fraudulent or forged;

                 (d)  except as specifically required by a Letter of Credit,
         failure of any instrument to bear any reference or adequate reference
         to any Letter of Credit, or failure of documents to accompany any
         draft at negotiation, or failure of any person to note the amount of
         any draft on the reverse of any Letter of Credit or to surrender or
         take up any Letter of Credit; or

                 (e)  errors, omissions, interruptions or delays in
         transmission or delivery of any messages by mail, cable, telegraph,
         wireless, or otherwise.

Issuing Bank shall not be responsible for any act, error, neglect or default,
omission, insolvency or failure in the business of any of the correspondents of
Issuing Bank, for any refusal by Issuing Bank or any of its correspondents to
pay or honor drafts drawn under any Letter of Credit because of any applicable
law, decree or edict, legal or illegal, of any governmental agency now or
hereafter enforced, or for any matter beyond the control of Issuing Bank.  The
happening of any one or more of the contingencies referred to in the preceding
clauses of this paragraph shall not affect, impair or prevent the vesting of
any of the rights or powers of Issuing Bank and or Lenders under this Agreement
or the obligation of Borrower to make reimbursement hereunder.  In furtherance
and extension and not in limitation of the specific provisions hereinabove set
forth, Borrower agrees that any action, unless such action constitutes willful
misconduct or gross negligence, not contrary to the terms of any Letter of
Credit, which is taken by Issuing Bank or any Lender issuing such Letter of
Credit or by any correspondent under or in connection with such Letter of
Credit shall be binding on Borrower and shall not put Issuing Bank or any
Lender or any correspondent under any resulting liability to Borrower and
Borrower makes a like agreement as to any inaction or omission unless such
action or inaction constitutes gross negligence or willful misconduct.

         Section 2A.7.  No Duty to Inquire.  Borrower agrees that Issuing Bank
is authorized and instructed to accept and pay drafts under any Letter of
Credit without requiring, and without responsibility for, the determination as
to the existence of any





                                      -26-
   30
event giving rise to said draft, either at the time of acceptance of payment or
thereafter; provided that Issuing Bank and Lenders will comply with the
provisions of Article 15 of the Uniform Customs and Practices for Documentary
Credits (1994 Revision) International Chamber of Commerce Publication 500.
Borrower agrees that Issuing Bank is under no duty to determine the proper
identity of anyone presenting such a draft or making such a demand (whether by
tested telex or otherwise) as the officer, representative or agent of any
beneficiary under any Letter of Credit issued by Issuing Bank, and payment by
Issuing Bank to any such beneficiary when requested by any such purported
officer, representative or agent is hereby authorized and approved by Borrower.
Borrower agrees to hold Issuing Bank and each Lender harmless and indemnified
against any liability or claim in connection with or arising out of the
foregoing provisions and the subject matter of this section.

         Section 2A.8.  Payment of LC Obligations.

         (a)  Acceleration of LC Obligations.  If the Obligations, or any part
thereof, become immediately due and payable pursuant to Article VII, then all
LC Obligations shall become immediately due and payable without regard for
actual drawings or payments on the Letters of Credit and Borrower shall
immediately pay to Agent for the account of the Issuing Bank an amount equal to
the aggregate LC Obligations then outstanding.

         (b)  LC Collateral Account.  All amounts made due and payable by
Borrower under this Section 2A.8 shall be (i) first applied to Borrower's
Matured LC Obligations, and (ii) second held by Agent in an account established
at NationsBank designated the Hecla Mining Company LC Collateral Account (the
"LC Collateral Account"), from which Borrower shall not be entitled to withdraw
funds, as security for the remaining Obligations (in this Section 2A.8 all such
amounts held in the LC Collateral Account and all investments made with funds
in the LC Collateral Account in which Agent has a perfected, first priority
security interest, collectively, "Cash Collateral").  The Cash Collateral shall
be applied to Matured LC Obligations as they mature and when no LC Obligations
remain outstanding, the Cash Collateral shall be applied to all other
Obligations as they become due and payable at which time the Cash Collateral
shall be applied to such Obligations.  At any time, and from time to time so
long as no Default or Event of Default has occurred and is continuing, Agent,
at the written request of Borrower, shall invest and reinvest funds held in the
LC Collateral Account in Permitted Investments at such prices, including any
premium and accrued interest, as are set forth in such request.  Upon the
occurrence and during the continuance of an Event of Default, Agent shall
invest and reinvest funds held in the LC Collateral Account in Permitted
Investments at such prices as it in its sole discretion determines.  Agent
shall have no liability for losses on any such Permitted Investments.  Any
interest shall be retained in the LC Collateral Account and invested in the
same manner as other funds therein or applied to Obligations then due and
owing.





                                      -27-
   31
         (c)  Grant of Security Interest.  Borrower hereby assigns and grants
to Agent a continuing security interest for the benefit of Lenders in the Cash
Collateral and all proceeds thereof to secure the Obligations and agrees that
Agent shall have all of the rights and remedies of a secured party under the
Uniform Commercial Code as adopted in the State of Texas with respect to such
security interest and that an Event of Default under this Agreement shall
constitute a default for purposes of such security interest.

         (d)  Account Transfers.  When Borrower is required to make payments
under this Section 2A.8 and fails to do so on the day when due, Agent may
without notice to Borrower or any other Related Person make such payment
(whether by application of proceeds of Cash Collateral, by transfers from other
accounts maintained with Agent or otherwise) using any funds then available to
any Related Person or any other Person liable for all or any part of Borrower's
Obligations hereunder or under Borrower's LC Applications.  Following any such
payment by such transfer of accounts and upon delivery to Agent by Borrower of
evidence satisfactory to Agent, in its sole discretion, that such accounts, at
the time of such application contained funds held in the legal capacity of
agent, operator or trustee for a third party (any funds so held, "Third Party
Funds"), Agent will remit to the Person or Persons in whose name the account is
held such Third Party Funds.  Any amounts which are required to be paid
pursuant to this Section 2A.8 and which are not paid on the date due shall, for
purposes of each Loan Document, be considered past due Obligations owing
hereunder, and Agent is hereby authorized to liquidate Cash Collateral, demand
under any and all guarantees of all or part of the Obligations and otherwise
exercise its respective rights under each Loan Document to obtain such amounts.


                 ARTICLE III - Conditions Precedent to Lending

         Section 3.1.  Documents to be Delivered.  No Lender has any obligation
to make its first Advance unless Agent shall have received all of the
following, at Agent's office in Dallas, Texas, duly executed and delivered and
in form, substance and date satisfactory to Agent:

                 (a)  This Agreement and any other documents that Lenders are
         to execute in connection herewith.

                 (b)  Each Lender's Note.

                 (c)  Certain certificates of Borrower including:

                      (i)  An "Omnibus Certificate" of the Secretary or
                 Assistant Secretary and of the Chairman of the Board or
                 President or any Vice President of Borrower, which shall
                 contain the names and signatures of the officers of Borrower
                 authorized to execute Loan Documents and





                                      -28-
   32
                 which shall certify to the truth, correctness and 
                 completeness of the following exhibits attached thereto:  
                 (1) a copy of resolutions duly adopted by the Board of 
                 Directors of Borrower and in full force and effect at the 
                 time this Agreement is entered into, authorizing the 
                 execution of this Agreement and the other Loan Documents 
                 delivered or to be delivered in connection herewith and the 
                 consummation of the transactions contemplated herein and 
                 therein, (2) a copy of the charter documents of Borrower and 
                 all amendments thereto, certified by the appropriate official 
                 of Borrower's state of organization, and (3) a copy of any 
                 bylaws of Borrower; and

                          (ii)  A "Compliance Certificate" of the chief
                 financial officer, chief accounting officer, Treasurer or
                 Vice- President Finance of Borrower, of even date with such
                 Advance, in which such officers certify to the satisfaction of
                 the conditions set out in subsections (a), (b), (c) and (d) of
                 Section 3.2.

                 (d)  A certificate (or certificates) of the due formation,
         valid existence and good standing of Borrower in its state of
         organization, issued by the appropriate authorities of such
         jurisdiction.

                 (e)  A favorable opinion of Michael B. White, Esq., general
         counsel for Borrower, substantially in the form set forth in Exhibit
         E, together with the certificate provided for in such Exhibit.

                 (f)  Documents similar to those specified in subsections (c)
         and (d) of this section with respect to each Subsidiary Guarantor and
         the execution by it of its guaranty of Borrower's Obligations.

                 (g)      Complete releases of all liens and security interests
         in property of the Related Persons in favor of existing lenders.

         Section 3.2.  Additional Conditions Precedent.  No Lender has any
obligation to make any Advance (including its first) unless the following
conditions precedent have been satisfied:

                 (a)  All representations and warranties made by any Related
         Person in any Loan Document shall be true on and as of the date of
         such Advance (except to the extent that the facts upon which such
         representations are based have been changed by the extension of credit
         hereunder) as if such representations and warranties had been made as
         of the date of such Advance.

                 (b)  No Default shall exist at the date of such Advance.





                                      -29-
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                 (c)  No material adverse change shall have occurred in
         Borrower's Consolidated financial condition or results of operations,
         other than any such change resulting from the matters designated as
         (III)(1) or (III)(2) in the Disclosure Schedule.

                 (d)  Each Related Person shall have performed and complied
         with all agreements and conditions required in the Loan Documents to
         be performed or complied with by it on or prior to the date of such
         Advance.

                 (e)  The making of such Advance shall not be prohibited by any
         law or any regulation or order of any court or governmental agency or
         authority and shall not subject any Lender to any penalty or other
         onerous condition under or pursuant to any such law, regulation or
         order.

                 (f)  Agent shall have received all documents and instruments
         which Agent has then requested, in addition to those described in
         Section 3.1 (including opinions of legal counsel for the Related
         Persons and Agent; corporate documents and records; documents
         evidencing governmental authorizations, consents, approvals, licenses
         and exemptions; and certificates of public officials and of officers
         and representatives of Borrower and other Persons), as to (i) the
         accuracy and validity of or compliance with all representations,
         warranties and covenants made by any of the Related Persons in this
         Agreement and the other Loan Documents, (ii) the satisfaction of all
         conditions contained herein or therein, and (iii) all other matters
         pertaining hereto and thereto.  All such additional documents and
         instruments shall be satisfactory to Agent in form, substance and
         date.

                 (g)      The making of such Advance or the issuance of such
         Letter of Credit shall not cause the Total Debt to Cash Earnings Ratio
         to exceed 4.0 to 1.0 (calculated using Total Debt as of the date of
         such Advance or the issuance of such Letter of Credit, and including
         the amount of such Advance or Letter of Credit, and using Cash
         Earnings as of the end of the most recent Fiscal Quarter).

                  ARTICLE IV - Representations and Warranties

         Section 4.1.  Borrower's Representations and Warranties.  To confirm
each Lender's understanding concerning Borrower and Borrower's business,
properties and obligations and to induce Agent and each Lender to enter into
this Agreement and to make the Loans, Borrower represents and warrants to Agent
and each Lender that:

                 (a)  No Default.  No Related Person is in default in the
         performance of any of the covenants and agreements contained herein.
         No event has occurred and is continuing which constitutes a Default.





                                      -30-
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                 (b)  Organization and Good Standing.  Each Related Person
         which is a corporation or partnership is duly organized, validly
         existing and in good standing under the laws of its state of
         organization, having all corporate or partnership powers required to
         carry on its business and enter into and carry out the transactions
         contemplated hereby.  Each such Related Person is duly qualified, in
         good standing, and authorized to do business in all other
         jurisdictions within the United States wherein the character of the
         properties owned or held by it or the nature of the business
         transacted by it makes such qualification necessary except where the
         failure to do so would not result in a material adverse effect on the
         business or operations of such Related Person.  Each such Related
         Person has taken all actions and procedures customarily taken in order
         to enter, for the purpose of conducting business or owning property,
         each jurisdiction outside the United States wherein the character of
         the properties owned or held by it or the nature of the business
         transacted by it makes such actions and procedures desirable except
         where the failure to do so would not result in a material adverse
         effect on the business or operations of such Related Person.

                 (c)  Authorization.  Each Related Person which is a
         corporation or partnership has duly taken all corporate or partnership
         action necessary to authorize the execution and delivery by it of the
         Loan Documents to which it is a party and to authorize the
         consummation of the transactions contemplated thereby and the
         performance of its obligations thereunder.  Borrower is duly
         authorized to borrow funds hereunder.

                 (d)  No Conflicts or Consents.  The execution and delivery by
         the various Related Persons of the Loan Documents to which each is a
         party, the performance by each of its obligations under such Loan
         Documents, and the consummation of the transactions contemplated by
         the various Loan Documents, do not and will not (i) conflict with any
         provision of (1) any domestic or foreign law, statute, rule or
         regulation, (2) the articles or certificate of incorporation, bylaws,
         charter, or partnership agreement or certificate of any Related
         Person, or (3) any agreement, judgment, license, order or permit
         applicable to or binding upon any Related Person, (ii) result in the
         acceleration of any Debt owed by any Related Person, or (iii) result
         in or require the creation of any Lien upon any assets or properties
         of any Related Person except as expressly contemplated in the Loan
         Documents.  Except as expressly contemplated in the Loan Documents no
         consent, approval, authorization or order of, and no notice to or
         filing with, any court or governmental authority or third party is
         required in connection with the execution, delivery or performance by
         any Related Person of any Loan Document or to consummate any
         transactions contemplated by the Loan Documents.





                                      -31-
   35
                 (e)  Enforceable Obligations.  This Agreement is, and the
         other Loan Documents when duly executed and delivered will be, legal,
         valid and binding obligations of each Related Person which is a party
         hereto or thereto, enforceable in accordance with their terms except
         as such enforcement may be limited by bankruptcy, insolvency or
         similar laws of general application relating to the enforcement of
         creditors' rights.

                 (f)  Initial Financial Statements.  The Initial Financial
         Statements fairly present Borrower's Consolidated financial position
         at the respective dates thereof and the Consolidated results of
         Borrower's operations and Borrower's Consolidated cash flows for the
         respective periods thereof.  Since the date of the audited annual
         Initial Financial Statements no material adverse change has occurred
         in Borrower's financial condition or businesses or in Borrower's
         Consolidated financial condition or businesses, except as reflected in
         the quarterly Initial Financial Statements or in the Disclosure
         Schedule.  All Initial Financial Statements were prepared in
         accordance with GAAP.

                 (g)  Other Obligations and Restrictions.  No Related Person
         has any outstanding Debt of any kind (including contingent
         obligations, tax assessments, and unusual forward or long-term
         commitments) which is, in the aggregate, material to Borrower or
         material with respect to Borrower's Consolidated financial condition
         and not shown in the Initial Financial Statements or disclosed in the
         Disclosure Schedule or a Disclosure Report.  Except as shown in the
         Initial Financial Statements or disclosed in the Disclosure Schedule
         or a Disclosure Report, no Related Person is subject to or restricted
         by any franchise, contract, deed, charter restriction, or other
         instrument or restriction which is materially likely in the
         foreseeable future to materially and adversely affect the businesses,
         properties, prospects, operations, or financial condition of such
         Related Person or of Borrower on a Consolidated basis.

                 (h)  Full Disclosure.  No certificate, statement or other
         information delivered herewith or heretofore by any Related Person to
         Agent or any Lender in connection with the negotiation of this
         Agreement or in connection with any transaction contemplated hereby
         contains any untrue statement of a material fact or omits to state any
         material fact known to any Related Person (other than industry-wide
         risks normally associated with the types of businesses conducted by
         the Related Persons) necessary to make the statements contained herein
         or therein not misleading as of the date made or deemed made.  There
         is no fact known to any Related Person (other than industry-wide risks
         normally associated with the types of businesses conducted by the
         Related Persons) that has not been disclosed to Agent and each Lender
         in writing which could materially and adversely affect Borrower's
         properties, business, prospects or





                                      -32-
   36
         condition (financial or otherwise) or Borrower's Consolidated
         properties, businesses, prospects or condition (financial or
         otherwise).  Borrower has heretofore delivered to Agent and each
         Lender true, correct and complete copies of the Initial Financial
         Statements.

                 (i)  Litigation.  Except as disclosed in the Initial Financial
         Statements or in the Disclosure Schedule:  (i) there are no actions,
         suits or legal, equitable, arbitrative or administrative proceedings
         pending, or to the knowledge of any Related Person threatened, against
         any Related Person before any federal, state, municipal or other
         court, department, commission, body, board, bureau, agency, or
         instrumentality, domestic or foreign, which do or may reasonably be
         expected to have a material adverse effect on Borrower or, on a
         Consolidated basis, Borrower and its properly Consolidated
         subsidiaries, their ownership or use of any of their assets or
         properties, their businesses or financial condition or prospects, or
         the right or ability of any Related Person to enter into the Loan
         Documents to which it is a party or to consummate the transactions
         contemplated thereby or to perform its obligations thereunder and (ii)
         there are no outstanding judgments, injunctions, writs, rulings or
         orders by any such governmental entity against any Related Person or
         any Related Person's stockholders, partners, directors or officers
         which have or may reasonably be expected to have any such effect.

                 (j)  ERISA Liabilities.  All currently existing ERISA Plans
         are listed in the Disclosure Schedule or a Disclosure Report.  Except
         as disclosed in the Initial Financial Statements or in the Disclosure
         Schedule or a Disclosure Report, no Termination Event has occurred
         with respect to any ERISA Plan and the Related Persons are in
         compliance with ERISA in all material respects.  No Related Person is
         required to contribute to, or has any other absolute or contingent
         liability in respect of, any "multiemployer plan" as defined in
         Section 4001 of ERISA.  Except as set forth in the Disclosure Schedule
         or a Disclosure Report:  (i) no "accumulated funding deficiency" (as
         defined in Section 412(a) of the Internal Revenue Code of 1986, as
         amended) exists with respect to any ERISA Plan, whether or not waived
         by the Secretary of the Treasury or his delegate, and (ii) the current
         value of each ERISA Plan's benefits does not exceed the current value
         of such ERISA Plan's assets available for the payment of such benefits
         by more than $500,000.

                 (k)  Environmental and Other Laws.  Except as disclosed in the
         Disclosure Schedule or a Disclosure Report: (i) the Related Persons
         are conducting their businesses in material compliance with all
         applicable federal, state and local laws, including Environmental
         Laws, and have and are in compliance in all material respects with all
         licenses and permits required under any such laws; (ii) none of the





                                      -33-
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         operations or properties of any Related Person is the subject of
         federal, state or local investigation regarding any release of any
         Hazardous Materials into the environment or the improper storage or
         disposal (including storage or disposal at offsite locations) of any
         Hazardous Materials in which an adverse determination would
         potentially result in a loss in excess of five percent (5%) of
         Borrower's Consolidated net worth; (iii) no Related Person (and to the
         best knowledge of Borrower, no other Person) has filed or received any
         notice under any federal, state or local law of any actual or
         potential violation of Environmental Laws or any violation of any
         applicable license or permit, which violation would potentially result
         in a loss in excess of five percent (5%) of Borrower's Consolidated
         net worth; and (iv) no Related Person otherwise has any known
         contingent liability under any Environmental Laws or in connection
         with the release into the environment, or the storage or disposal, of
         any Hazardous Materials in excess of five percent (5%) of Borrower's
         Consolidated net worth.

                 (l)  Names and Places of Business.  Neither Borrower nor any
         Subsidiary Guarantor, during the preceding five years, had, been known
         by, or used any other corporate, trade, or fictitious name, except as
         disclosed in the Disclosure Schedule.  Except as otherwise indicated
         in the Disclosure Schedule or a Disclosure Report, the chief executive
         office and principal place of business of Borrower and each of the
         Subsidiary Guarantors are (and for the preceding five years have been)
         located at the address of Borrower set out in Section 9.3 or (if
         different) the address of each such Related Person set out in the
         Disclosure Schedule.  Except as indicated in the Disclosure Schedule
         or a Disclosure Report, neither Borrower nor any Subsidiary Guarantor
         has any other office or place of business.

                 (m)      Borrower's Subsidiaries.  Borrower does not presently
         have any Subsidiary that has assets in excess of $1,000,000
         (calculated at net book value), other than Material Subsidiaries.
         Except as otherwise revealed in a Disclosure Report, Borrower owns,
         directly or indirectly, the equity interest in each of its
         Subsidiaries which is indicated in Schedule 2.

                 (n)      Title to Properties.  Each Related Person has good
         and defensible title to all of its material properties and assets,
         free and clear of all Prohibited Liens.

                 (o)      Government Regulation.  Neither Borrower nor any
         other Related Person owing Obligations is subject to regulation under
         the Public Utility Holding Company Act of 1935, the Federal Power Act,
         the Investment Company Act of 1940 (as any of the preceding acts have
         been amended) or any other statute, law, regulation or decree which
         regulates the incurring by such Person of Debt, including statutes,
         laws,





                                      -34-
   38
         regulations or decrees relating to common contract carriers or the
         sale of electricity, gas, steam, water or other public utility
         services.

                 (p)  Insider.  Neither Borrower, nor any other Related
         Person, nor any Person having "control" (as that term is defined in 12
         U.S.C. Section  375b(9) or in regulations promulgated pursuant
         thereto) of Borrower, is a "director" or an "executive officer" or
         "principal shareholder" (as those terms are defined in 12 U.S.C.
         Section  375b(8) or (9) or in regulations promulgated pursuant
         thereto) of Lender, of a bank holding company of which Lender is a
         Subsidiary or of any Subsidiary of a bank holding company of which
         Lender is a Subsidiary.

                 (q)  Officers and Directors.  The officers and directors of
         Borrower are those persons disclosed in the definitive proxy statement
         prepared by Borrower and filed with the Securities and Exchange
         Commission in connection with Borrower's most recent annual meeting,
         copies of which proxy statement have been previously furnished in
         connection with the negotiation hereof.

                 (r)  Solvency.  Neither Borrower nor any Subsidiary Guarantor
         is "insolvent" on the date hereof (that is, the sum of such Person's
         absolute and contingent liabilities, including the Obligations,
         exceeds the fair market value of such Person's assets).  Borrower's
         and each Subsidiary Guarantor's capital is adequate for the businesses
         in which such Person is engaged and intends to be engaged.  Neither
         Borrower nor any Subsidiary Guarantor has hereby incurred, nor does
         Borrower nor any Subsidiary Guarantor intend to incur or believe that
         it will incur, debts which will be beyond its ability to pay as such
         debts mature.  The direct or indirect value of the consideration
         received and to be received by each Subsidiary Guarantor in connection
         herewith is reasonably worth at least as much as the liability and
         obligations of such Subsidiary Guarantor under Article VIA and the
         incurrence of such liability and obligations in return for such
         consideration may reasonably be expected to benefit each Subsidiary
         Guarantor, directly or indirectly.

                 Section 4.2.  Representation by Lenders.  Each Lender hereby
         represents that it will acquire its Note for its own account in the
         ordinary course of its commercial lending business; however, the
         disposition of such Lender's property shall at all times be and remain
         within its control and, in particular and without limitation, such
         Lender may sell or otherwise transfer its Note, any participation
         interest or other interest in its Note, or any of its other rights and
         obligations under the Loan Documents.





                                      -35-
   39
                       ARTICLE V - Covenants of Borrower

         Section 5.1.  Affirmative Covenants.  To conform with the terms and
conditions under which each Lender is willing to have credit outstanding to
Borrower, and to induce Agent and each Lender to enter into this Agreement and
make the Loans, Borrower warrants, covenants and agrees that until the full and
final payment of the Obligations and the termination of this Agreement, unless
Majority Lenders (or all Lenders as set forth in Section 9.1(a)) have
previously agreed otherwise:

                 (a)  Payment and Performance.  Borrower will pay all amounts
         due under the Loan Documents in accordance with the terms thereof and
         will observe, perform and comply with every covenant, term and
         condition expressed in the Loan Documents.  Borrower will cause the
         other Related Persons to observe, perform and comply with every such
         term, covenant and condition.

                 (b)  Books, Financial Statements and Reports.   Each Related
         Person will at all times maintain full and materially accurate books
         of account and records.  Borrower will maintain and will cause its
         Subsidiaries to maintain a standard system of accounting and will
         furnish the following statements and reports to Agent and each Lender
         at Borrower's expense:

                      (i)  As soon as available, and in any event within 90
                 days after the end of each Fiscal Year, complete Consolidated
                 financial statements of Borrower together with all notes
                 thereto, prepared in reasonable detail in accordance with
                 GAAP, together with an opinion, based on an audit using
                 generally accepted auditing standards, by Coopers & Lybrand or
                 other independent certified public accountants selected by
                 Borrower and acceptable to Majority Lenders, stating that such
                 Consolidated financial statements have been so prepared.
                 These financial statements shall contain a Consolidated
                 balance sheet as of the end of such Fiscal Year and
                 Consolidated and consolidating statements of earnings, of cash
                 flows, and of changes in owners' equity for such Fiscal Year,
                 each setting forth in comparative form the corresponding
                 figures for the preceding Fiscal Year.  In addition, within
                 100 days after the end of each Fiscal Year Borrower will
                 furnish a report signed by such accountants stating that they
                 have read this Agreement and further stating that in making
                 the examination and reporting on the Consolidated financial
                 statements described above they did not conclude that any
                 Default existed at the end of such Fiscal Year or at the time
                 of their report, or, if they did conclude that a Default
                 existed, specifying its nature and period of existence.

                      (ii)  As soon as available, and in any event within 45 
                 days after the end of each of the first three





                                      -36-
   40
                 Fiscal Quarters in each Fiscal Year of Borrower's Consolidated
                 and consolidating balance sheet as of the end of such Fiscal
                 Quarter and Consolidated and consolidating statements of
                 Borrower's earnings and cash flows for the period from the
                 beginning of the then current Fiscal Year to the end of such
                 Fiscal Quarter, all in reasonable detail and prepared in
                 accordance with GAAP, subject to changes resulting from normal
                 year-end adjustments.  In addition Borrower will, together
                 with each such set of financial statements and each set of
                 financial statements furnished under subsection (b)(i) of this
                 section, furnish a certificate in the form of Exhibit D signed
                 by the chief financial officer of Borrower stating that such
                 financial statements are accurate and complete, stating that
                 he has reviewed the Loan Documents, containing calculations
                 showing compliance (or non-compliance) at the end of such
                 Fiscal Quarter with the requirements of Sections 5.2(a),
                 5.2(d), 5.2(k) and 5.2(l) and stating that no Default exists
                 at the end of such Fiscal Quarter or at the time of such
                 certificate or specifying the nature and period of existence
                 of any such Default.

                          (iii)  Within 45 days after the end of each Fiscal
                 Quarter, cash flow projections based on a rolling four quarter
                 basis, to be used to calculate the Total Debt to Cash Earnings
                 Ratio as set forth in Section 2.8(b), and by November 30 of
                 each year annual five-year cash flow projections, together
                 with (A) information prepared by Borrower and/or its
                 geologists and/or consultants supporting such projections and
                 (B) as to such quarterly projections, any available
                 information regarding actual cash flow since the end of such
                 Fiscal Quarter.

                          (iv)  Promptly upon their becoming available, copies
                 of all financial statements, reports, notices and proxy
                 statements sent by Borrower to its stockholders and all
                 registration statements, periodic reports and other statements
                 and schedules filed by Borrower with any securities exchange,
                 the Securities and Exchange Commission or any similar
                 governmental authority.

                 (c)  Other Information and Inspections.  Each Related Person
         will furnish to Agent any information which Agent may from time to
         time reasonably request in writing for itself or on behalf of any
         Lender concerning any covenant, provision or condition of the Loan
         Documents or any matter in connection with the Related Persons'
         businesses and operations.  Each Related Person will permit
         representatives appointed by Agent (including independent accountants,
         agents, attorneys, appraisers and any other Persons) to visit and
         inspect any of such Related Person's property,





                                      -37-
   41
         including its books of account, other books and records, and any
         facilities or other business assets, and to make extra copies
         therefrom and photocopies and photographs thereof, and to write down
         and record any information such representatives obtain, and each
         Related Person shall permit Agent or its representatives to
         investigate and verify the accuracy of the information furnished to
         Agent or any Lender in connection with the Loan Documents and to
         discuss all such matters with its officers, employees and
         representatives.  Each of Agent and Lenders agrees that, until the
         occurrence of an Event of Default, it will take all reasonable steps
         to keep confidential any proprietary information given to it by any
         Related Person, provided, however, that this restriction shall not
         apply to information which (i) has at the time in question entered the
         public domain by means other than any Lender's or Agent's breach of
         the provisions of this Section 5.1(c), (ii) is required to be
         disclosed by law or by any order, rule or regulation (which Agent or
         such Lender reasonably believes to be valid) of any court or
         governmental agency or authority, (iii) is disclosed to Agent's or any
         Lender's Affiliates, auditors, attorneys, or agents, or (iv) is
         furnished to any other Lender or to any purchaser or prospective
         purchaser of participations or other interests in any Loan or Loan
         Document, provided that such Affiliates, auditors (other than bank
         examiners), attorneys, agents, Lenders and purchasers agree to be
         bound by the confidentiality provisions of this subsection.

                 (d)  Notice of Material Events and Changes of Name or Address.
         Borrower will promptly notify Agent:

                      (i)   of any material adverse change in Borrower's
                 financial condition or Borrower's Consolidated financial
                 condition,

                      (ii)  of the occurrence of any Default,

                      (iii) of the acceleration of the maturity of any
                 Debt owed by any Related Person or of any default by any
                 Related Person under any indenture, mortgage, agreement,
                 contract or other instrument to which any of them is a party
                 or by which any of them or any of their properties is bound,
                 if such acceleration or default might have a material adverse
                 effect upon Borrower's Consolidated financial condition,

                      (iv)  of the occurrence of any Termination Event,

                      (v)   of any suit, action or proceeding reasonably
                 anticipated to result in a claim in excess of $1,000,000, any
                 notice of potential liability under any Environmental Laws
                 which might exceed such amount, or any other material adverse
                 claim asserted against any





                                      -38-
   42
                 Related Person or with respect to any Related Person's 
                 properties, and

                      (vi)   of any labor controversy resulting in or 
                 threatening to result in a strike against any Related Person; 
                 and

                      (vii)  of the filing of any suit or proceeding
                 against any Related Person in which an adverse decision could
                 have a material adverse effect upon any Related Person's
                 financial condition, business or operations.

         Upon the occurrence of any of the foregoing the Related Persons will
         take all necessary or appropriate steps to remedy promptly any such
         material adverse change, Default, acceleration, default or Termination
         Event, to protect against any such adverse claim, to defend any such
         suit or proceeding, and to attempt to resolve or properly contest all
         controversies on account of any of the foregoing.

                 BORROWER WILL ALSO NOTIFY AGENT AND AGENT'S COUNSEL IN WRITING
         AT LEAST TWENTY BUSINESS DAYS PRIOR TO THE DATE THAT ANY RELATED
         PERSON CHANGES ITS NAME OR THE LOCATION OF ITS CHIEF EXECUTIVE OFFICE
         OR PRINCIPAL PLACE OF BUSINESS.

                 (e)  Maintenance of Properties.  Each Related Person will
         maintain, preserve, protect, and keep all property material to the
         conduct of its business in good condition and in substantial
         compliance with all applicable laws, rules and regulations.

                 (f)  Maintenance of Existence and Qualifications.  Each
         Related Person which is a corporation or partnership will maintain and
         preserve its corporate or partnership existence and its rights and
         franchises in full force and effect and will qualify to do business as
         a foreign corporation or partnership in all states or jurisdictions
         where required by applicable law, except where the failure so to
         qualify will not have any material adverse effect on Borrower or any
         Subsidiary Guarantor.

                 (g)  Payment of Trade Debt, Taxes, etc.  Each Related Person
         will (i) timely file all required tax returns; (ii) timely pay all
         taxes, assessments, and other governmental charges or levies imposed
         upon it or upon its income, profits or property; (iii) within ninety
         days after the same becomes due pay all Debt owed by it on ordinary
         trade terms to vendors, suppliers and other Persons providing goods
         and services used by it in the ordinary course of its business; (iv)
         pay and discharge when due all other Debt now or hereafter owed by it;
         and (v) maintain appropriate accruals and reserves for all of the
         foregoing in accordance with GAAP.  Each Related Person may, however,
         delay paying or discharging any of the foregoing so long as it is in
         good faith contesting the validity thereof by





                                      -39-
   43
         appropriate proceedings and has set aside on its books adequate
         reserves therefor in accordance with GAAP.

                 (h)  Insurance.  Each Related Person will keep or cause to be
         kept adequately insured by financially sound and reputable insurers
         its property (including without limitation "all-risk" (earthquake,
         boiler, machinery) insurance on general property, and insurance on
         office contents, mobile equipment, metals, ores and the like on
         premises, property-in-transit and mobile service equipment) in amounts
         that are customary in the type of businesses in which the Related
         Persons are engaged, and such other endorsements as are customary in
         the type of businesses in which the Related Persons are engaged.  Upon
         demand by Agent any insurance policies covering any such property
         shall be endorsed (i) to provide that such policies may not be
         cancelled, reduced or affected in any manner for any reason without
         fifteen days prior notice to Agent, and (ii) to provide for any other
         matters which Agent may reasonably require and as are customary in
         transactions of this type.  Each Related Person shall at all times
         maintain adequate insurance against its liability for injury to
         persons or property, which insurance shall be by financially sound and
         reputable insurers and shall without limitation provide the following
         coverages:  comprehensive general liability and automobile liability.
         Borrower self insures for workers compensation.

                 (i)  Payment of Expenses.  Whether or not the transactions
         contemplated by this Agreement are consummated, Borrower will promptly
         (and in any event, within 30 days after any invoice or other statement
         or notice) pay all reasonable costs and expenses incurred by or on
         behalf of (i) Agent (including attorneys' fees) in connection with (1)
         the negotiation, preparation, execution and delivery of the Loan
         Documents, and any and all consents, waivers or other documents or
         instruments relating thereto, (2) the filing, recording, refiling and
         re-recording of any Loan Documents and any other documents or
         instruments or further assurances required to be filed or recorded or
         refiled or re-recorded by the terms of any Loan Document, and (3) the
         borrowings hereunder and other action reasonably required in the
         course of administration hereof, and (ii) Agent or any Lender
         (including attorneys' fees) in connection with the defense or
         enforcement of the Loan Documents or the defense of Agent's or any
         Lender's exercise of its rights thereunder (including costs and
         expenses of determining whether and how to carry out such defense or
         enforcement).

                 (j)  Performance on Borrower's Behalf.  If any Related Person
         fails to pay any taxes, insurance premiums, expenses, attorneys' fees
         or other amounts it is required to pay under any Loan Document, Agent
         may pay the same.  Borrower shall immediately reimburse Agent for any
         such payments and each amount paid by Agent shall constitute an
         Obligation owed





                                      -40-
   44
         hereunder which is due and payable on the date such amount is paid by
         Agent.

                 (k)  Interest.  Borrower hereby promises to Agent and Lenders
         to pay interest at the Late Payment Rate on all Obligations which
         Borrower has in this Agreement promised to pay (including Obligations
         to pay fees or to reimburse or indemnify Agent or any Lender) and
         which are not paid when due.  Such interest shall accrue from the date
         such Obligations become due until they are paid.

                 (l)  Compliance with Agreements and Law.  Each Related Person
         will perform all material obligations it is required to perform under
         the terms of each indenture, mortgage, deed of trust, security
         agreement, lease, franchise, agreement, contract or other instrument
         or obligation to which it is a party or by which it or any of its
         properties is bound.  Each Related Person will conduct its business
         and affairs in compliance with all laws, regulations, and orders
         applicable thereto, including Environmental Laws, in all material
         respects.

                 (m)  Evidence of Compliance.  Each Related Person will furnish
         to Agent at such Related Person's or Borrower's expense all evidence
         which Agent from time to time reasonably requests in writing as to the
         accuracy and validity of or compliance with all representations,
         warranties and covenants made by any Related Person in the Loan
         Documents, the satisfaction of all conditions contained therein, and
         all other matters pertaining thereto.

                 (n)      Subsidiary Guarantors.  Borrower shall cause each of
         its Subsidiaries now existing or created, acquired or coming into
         existence after the date hereof, that has assets at any time in excess
         of $1,000,000 (calculated at net book value) or having net income
         constituting more than ten percent (10%) of Cash Earnings for any
         Fiscal Quarter, to become a Subsidiary Guarantor and a party hereto at
         such time, and shall cause such Subsidiary to deliver at such time
         written evidence satisfactory to Agent and its counsel that such
         Subsidiary has taken all corporate or partnership action necessary to
         duly approve and authorize its joinder hereto and the performance of
         its obligations as a Subsidiary Guarantor hereunder.  Notwithstanding
         the foregoing, in the event it is impracticable for any Subsidiary
         organized under the laws of a jurisdiction other than the United
         States to become a Subsidiary Guarantor as set forth above, such
         Subsidiary shall not be required to become a Subsidiary Guarantor.

         Section 5.2.  Negative Covenants.  To conform with the terms and
conditions under which each Lender is willing to have credit outstanding to
Borrower, and to induce Agent and each Lender to enter into this Agreement and
make the Loans, Borrower warrants, covenants and agrees that until the full and
final payment of the





                                      -41-
   45
Obligations and the termination of this Agreement, unless Majority Lenders have
previously agreed otherwise:

                 (a)  Limitation on Debt.  No Related Person will in any manner
         owe or be liable for any Funded Debt or any Debt under any Guaranty of
         any Funded Debt except;

                      (i)    Permitted Debt owed by Borrower.

                      (ii)   Funded Debt (other than Funded Debt permitted
                 in clause (i) above) and Debt under any Guaranties of any
                 Funded Debt, that, in the aggregate for all such Funded Debt
                 and Debt under Guaranties for all Related Persons, does not
                 exceed $5,000,000.

                 (b)  Limitation on Liens.  No Related Person will create,
         assume or permit to exist any Lien upon any of the properties or
         assets which it now owns or hereafter acquires, except:

                      (i)    Liens which secure Obligations only.

                      (ii)   statutory Liens for taxes, statutory mechanics' 
                 and materialmen's Liens incurred in the ordinary course of 
                 business, and other similar statutory Liens incurred in the 
                 ordinary course of business, provided such Liens do not
                 secure Restricted Debt and secure only Debt which is not
                 delinquent or which is being contested as provided in Section
                 5.1(g).

                      (iii)  deposits or pledges of cash or cash equivalents 
                 to secure the payment of workers' compensation, unemployment 
                 insurance or other social security or retirement benefits or 
                 obligations, or to secure the performance of bids, trade 
                 contracts, leases, public or statutory obligations, surety or 
                 appeal bonds and other obligations of a like nature incurred 
                 in the ordinary course of business.

                      (iv)   Liens disclosed in the Disclosure Schedule.

                      (v)    Liens securing the purchase price of equipment or 
                 filed in connection with leases of equipment.

                      (vi)   Liens granted to operators of mining joint
                 ventures to secure the obligations of Related Persons that are
                 not operators.

                 (c)  Limitation on Mergers, Issuances of Securities.  Except
         as expressly provided in this subsection no Related Person will merge
         or consolidate with or into any other business entity.  Any Person may
         be merged into Borrower, so long as Borrower is the surviving business
         entity, and any Subsidiary of Borrower, including Material
         Subsidiaries, may





                                      -42-
   46
         be merged into or consolidated with (i) another Subsidiary of
         Borrower, so long as a Subsidiary Guarantor is the surviving business
         entity, or (ii) Borrower, so long as Borrower is the surviving
         business entity.  Borrower will not issue any securities other than
         Permitted Debt and shares of its common stock and any options or
         warrants giving the holders thereof only the right to acquire such
         shares.  No Material Subsidiary of Borrower will issue any additional
         shares of its capital stock or other securities or any options,
         warrants or other rights to acquire such additional shares or other
         securities except to Borrower and only to the extent not otherwise
         forbidden under the terms hereof.  No Material Subsidiary of Borrower
         which is a partnership will allow any diminution of Borrower's
         interest (direct or indirect) therein.

                 (d)  Limitation on Sales of Property.  No Related Person will
         sell, transfer, lease, exchange, alienate or dispose of any of its
         material assets or properties or any material interest therein except:

                      (i)   equipment which is worthless or obsolete or
                 which is replaced by equipment of equal suitability and value
                 or is sold in the ordinary course of business.

                     (ii)   inventory which is sold in the ordinary course of 
                 business on ordinary trade terms.

                     (iii)  properties or assets, or interests therein,
                 the value of which does not exceed in the aggregate during any
                 Fiscal Year 10% of the net book value of all of Borrowers
                 tangible properties and assets; provided that immediately upon
                 any such sale the Total Debt to Cash Earnings Ratio shall be
                 recalculated excluding the Cash Earnings attributable to the
                 properties and assets so sold (excluding any gain or including
                 any losses attributable to such sale).

         Neither Borrower nor any of Borrower's Subsidiaries will sell,
         transfer or otherwise dispose of capital stock of any of Borrower's
         Subsidiaries except that any Material Subsidiary of Borrower may sell
         or issue its own capital stock to the extent not otherwise prohibited
         hereunder.  No Related Person will discount, sell, pledge or assign
         any notes payable to it, accounts receivable or future income except
         to the extent expressly permitted under the Loan Documents.

                 (e)  Limitation on Dividends and Redemptions.  No Related
         Person will declare or pay any dividends on, or make any other
         distribution in respect of, any class of its capital stock or any
         partnership or other interest in it, nor will any Related Person
         directly or indirectly make any capital contribution to or purchase,
         redeem, acquire or retire any shares of the capital stock of or
         partnership





                                      -43-
   47
         interests in any Related Person (whether such interests are now or
         hereafter issued, outstanding or created), or cause or permit any
         reduction or retirement of the capital stock of any Related Person,
         except as expressly provided in this section.  Such dividends,
         distributions, contributions, purchases, redemptions, acquisitions,
         retirements or reductions may be made by the Related Persons (i)
         without limitation to Borrower; and (ii) to Subsidiary Guarantors.  In
         addition to the foregoing each Related Person may declare and pay to
         any Persons (x) cash dividends so long as no Default or Event of
         Default has occurred and is continuing, and (y) dividends payable only
         in common stock, so long as no Related Person's interest in any of its
         Subsidiaries is thereby reduced.  If no Default or Event of Default
         has occurred and is continuing, Borrower may pay dividends on its
         preferred stock.

                 (f)  Limitation on Investments and New Businesses.  No Related
         Person will (i) make any expenditure or commitment or incur any
         obligation or enter into or engage in any transaction except in the
         ordinary course of business, (ii) engage directly or indirectly in any
         business or conduct any operations except in connection with or
         incidental to its present businesses and operations, or (iii) make any
         acquisitions of or capital contributions to or other investments in
         any Person, other than Permitted Investments.

                 (g)  Limitation on Credit Extensions.  Except for Permitted
         Investments, no Related Person will extend credit, make advances or
         make loans other than (i) normal and prudent extensions of credit to
         customers buying goods and services in the ordinary course of
         business, which extensions shall not be for longer periods than those
         extended by similar businesses operated in a normal and prudent
         manner, (ii) loans to Borrower or to any Subsidiary Guarantor, (iii)
         loans in an aggregate outstanding principal amount not to exceed
         $1,000,000 to third parties.

                 (h)  Transactions with Affiliates.  No Related Person will
         engage in any material transaction with any of its Affiliates on terms
         which are less favorable to it than those which would have been
         obtainable at the time in arm's-length dealing with Persons other than
         such Affiliates, provided that such restriction shall not apply to
         transactions among Borrower and its wholly owned Subsidiaries.

                 (i)  ERISA Plans.  No Related Person will incur any obligation
         to contribute to any "multiemployer plan" as defined in Section 4001
         of ERISA.

                 (j)  Fiscal Year.  Neither Borrower nor any Subsidiary
         Guarantor will change its fiscal year.





                                      -44-
   48
                 (k)  Working Capital and Current Ratio.   The ratio of
         Borrower's Consolidated current assets to Borrower's Consolidated
         current liabilities will never be less than 1.5 to 1.0.  For purposes
         of this subsection, Borrower's Consolidated current liabilities will
         be calculated without including any payments of principal on the Note
         which are required to be repaid within one year from the time of
         calculation.

                 (l)  Fixed Charge Coverage Ratio.  The ratio of (1) Borrower's
         Consolidated EBITDA as of the end of each Fiscal Quarter to (2)
         Borrower's Consolidated Fixed Charges as of the end of such Fiscal
         Quarter will never be less than (A) 1.0 to 1.0 at any time after the
         date hereof and (B) 1.5 to 1.0 at any time after December 31, 1994.

                        ARTICLE VI - Bank Accounts, Etc.

         Section 6.1.  Bank Accounts; Offset.  To secure the repayment of the
Obligations Borrower and each Subsidiary Guarantor hereby grants to Agent and
each Lender and to each financial institution which hereafter acquires a
participation or other interest in any Loan or Note (in this section called a
"Participant") a security interest, a lien, and a right of offset, each of
which shall be in addition to all other interests, liens, and rights of Agent
or any Lender or Participant at common law, under the Loan Documents, or
otherwise, and each of which shall be upon and against (a) any and all moneys,
securities or other property (and the proceeds therefrom) of Borrower or such
Subsidiary Guarantor now or hereafter held or received by or in transit to
Agent or any Lender or Participant from or for the account of Borrower or such
Subsidiary Guarantor, whether for safekeeping, custody, pledge, transmission,
collection or otherwise, (b) any and all deposits (general or special, time or
demand, provisional or final) of Borrower or such Subsidiary Guarantor with
Agent or any Lender or Participant, and (c) any other credits and claims of
Borrower or such Subsidiary Guarantor at any time existing against Agent or any
Lender or Participant, including claims under certificates of deposit.  Upon
the occurrence of any Default, each of Agent and Lenders and Participants is
hereby authorized to foreclose upon, offset, appropriate, and apply, at any
time and from time to time, without notice to Borrower or any Subsidiary
Guarantor, any and all items hereinabove referred to against the Obligations
then due and payable.

                             ARTICLE VIA - Guaranty

         Section 6A.1.  Guaranty.

                 (a)  Each Subsidiary Guarantor hereby irrevocably, absolutely,
         and unconditionally guarantees to Lenders the prompt, complete, and
         full payment when due, and no matter how the same shall become due, of
         all Obligations.  Without limiting the generality of the foregoing,
         each Subsidiary





                                      -45-
   49
         Guarantor's liability hereunder shall extend to and include all
         post-petition interest, expenses, and other duties and liabilities of
         Borrower described above in this subsection (a), or below in the
         following subsection (b), which would be owed by Borrower but for the
         fact that they are unenforceable or not allowable due to the existence
         of a bankruptcy, reorganization, or similar proceeding involving
         Borrower.

                 (b)  Each Subsidiary Guarantor hereby irrevocably, absolutely,
         and unconditionally guarantees to Lenders the prompt, complete and
         full performance, when due, and no matter how the same shall become
         due, of all obligations and undertakings of Borrower to Lenders under,
         by reason of, or pursuant to any of the Loan Documents.

                 (c)  If Borrower shall for any reason fail to pay any
         Obligation, as and when such Obligation shall become due and payable,
         whether at its stated maturity, as a result of the exercise of any
         power to accelerate, or otherwise, each Subsidiary Guarantor will,
         forthwith upon demand by Agent, pay such Obligation in full to Agent
         for distribution to Lenders.  If Borrower shall for any reason fail to
         perform promptly any Obligation, each Subsidiary Guarantor will,
         forthwith upon demand by Agent, cause such Obligation to be performed
         or, if specified by Agent or Lenders, provide sufficient funds, in
         such amount and manner as Agent shall in good faith determine, for the
         prompt, full and faithful performance of such Obligation by Agent or
         such other Person as Agent shall designate.

                 (d)  If either Borrower or any Subsidiary Guarantor fails to
         pay or perform any Obligation as described in the immediately
         preceding subsections (a), (b), or (c), each Subsidiary Guarantor will
         incur the additional obligation to pay to Agent, and each Subsidiary
         Guarantor will forthwith upon demand by Agent pay to Agent for
         distribution to Lenders, the amount of any and all expenses, including
         fees and disbursements of Agent's and Lender's counsel and of any
         experts or agents retained by Agent, which Agent or Lenders may incur
         as a result of such failure.

                 (e)  Notwithstanding the foregoing or any other provisions
         of this Agreement, it is agreed and understood that no Subsidiary
         Guarantor shall be required to pay hereunder at any time more than the
         Maximum Guaranteed Amount determined with respect to such Subsidiary
         Guarantor as of such time.  Each Subsidiary Guarantor agrees that the
         Obligations may at any time exceed the sum of the Maximum Guaranteed
         Amount plus the aggregate maximum amount of all Obligations of all
         other Subsidiary Guarantors, without affecting or impairing the
         Obligations of such Subsidiary Guarantor.





                                      -46-
   50
         Section 6A.2.  Unconditional Guaranty.

                 (a)  No action which Agent or Lenders may take or omit to take
         in connection with any of the Loan Documents, any of the Obligations
         (or any other indebtedness owing by Borrower to Agent or Lenders), or
         any Cash Collateral, and no course of dealing of Agent or Lenders with
         any other Person, shall release or diminish any Subsidiary Guarantor's
         obligations, liabilities, agreements or duties hereunder, affect any
         Subsidiary Guarantor's guaranty any way, or afford any Subsidiary
         Guarantor any recourse against Agent or Lenders, regardless of whether
         any such action or inaction may increase any risks to or liabilities
         of Agent or Lender or any other Person or increase any risk to or
         diminish any safeguard of any Cash Collateral.  Without limiting the
         foregoing, each Subsidiary Guarantor hereby expressly agrees that
         Agent or Lenders may, from time to time, without notice to or the
         consent of any Subsidiary Guarantor, do any or all of the following:

                       (i)    Amend, change or modify, in whole or in part,
                 any one or more of the Loan Documents and give or refuse to
                 give any waivers or other indulgences with respect thereto.

                       (ii)   Neglect, delay, fail, or refuse to take or
                 prosecute any action for the collection or enforcement of any
                 of the Obligations, to foreclose or take or prosecute any
                 action in connection with any Cash Collateral or Loan
                 Document, to bring suit against any Person, or to take any
                 other action concerning the Obligations or the Loan Documents.

                       (iii)  Accelerate, change, rearrange, extend, or
                 renew the time, terms, or manner for payment or performance of
                 any one or more of the Obligations.

                       (iv)   Compromise or settle any unpaid or unperformed
                 Obligation or any other obligation or amount due or owing, or
                 claimed to be due or owing, under any one or more of the Loan
                 Documents.

                       (v)    Take, exchange, amend, eliminate, surrender,
                 release, or subordinate any or all Cash Collateral for any or
                 all of the Obligations, accept additional or substituted Cash
                 Collateral therefor, and perfect or fail to perfect Lenders'
                 rights in any or all Cash Collateral.

                       (vi)   Discharge, release, substitute or add obligors.

                       (vii)  Apply all monies received from obligors or
                 others, or from any Cash Collateral for any of the
                 Obligations, as Agent or Lenders may determine to be in





                                      -47-
   51
                 its best interest, without in any way being required to 
                 marshall Cash Collateral or assets or to apply all or any 
                 part of such monies upon any particular Obligations.

                 (b)  No action or inaction of any Person, and no change of law
         or circumstances, shall release or diminish any Subsidiary Guarantor's
         obligations, liabilities, agreements, or duties hereunder, affect this
         guaranty in any way, or afford any Subsidiary Guarantor any recourse
         against Agent or Lenders.  Without limiting the foregoing, the
         obligations, liabilities, agreements, and duties of Subsidiary
         Guarantors under this Guaranty shall not be released, diminished,
         impaired, reduced, or affected by the occurrence of any or all of the
         following from time to time, even if occurring without notice to or
         without the consent of any Subsidiary Guarantor:

                      (i)    Any voluntary or involuntary liquidation,
                 dissolution, sale of all or substantially all assets,
                 marshalling of assets or liabilities, receivership,
                 conservatorship, assignment for the benefit of creditors,
                 insolvency, bankruptcy, reorganization, arrangement, or
                 composition of Borrower or any Subsidiary Guarantor or any
                 other proceedings involving Borrower or any Subsidiary
                 Guarantor or any of the assets of Borrower or any Subsidiary
                 Guarantor under laws for the protection of debtors, or any
                 discharge, impairment, modification, release, or limitation of
                 the liability of, or stay of actions or lien enforcement
                 proceedings against, Borrower or any Subsidiary Guarantor, any
                 properties of Borrower or any Subsidiary Guarantor, or the
                 estate in bankruptcy of Borrower or any Guarantor in the
                 course of or resulting from any such proceedings.

                      (ii)   The failure by Agent or Lenders to file or
                 enforce a claim in any proceeding described in the immediately
                 preceding subsection (i) or to take any other action in any
                 proceeding to which Borrower or any Subsidiary Guarantor is a
                 party.

                      (iii)  The release by operation of law of Borrower or
                 any Subsidiary Guarantor from any of the Obligations or any
                 other obligations to Lender.

                      (iv)   The invalidity, deficiency, illegality, or
                 unenforceability of any of the Obligations or the Loan
                 Documents, in whole or in part, any bar by any statute of
                 limitations or other law of recovery on any of the
                 Obligations, or any defense or excuse for failure to perform
                 on account of force majeure, act of God, casualty,
                 impossibility, impracticability, or other defense or excuse
                 whatsoever.





                                      -48-
   52
                      (v)    The failure of Borrower or any Subsidiary
                 Guarantor or any other Person to sign any guaranty or other
                 instrument or agreement within the contemplation of Borrower
                 or any Subsidiary Guarantor, Agent or Lender.

                      (vi)   The fact that any Subsidiary Guarantor may have
                 incurred directly part of the Obligations or is otherwise
                 primarily liable therefor.

                      (vii)  Without limiting any of the foregoing, any
                 fact or event (whether or not similar to any of the foregoing)
                 which in the absence of this provision would or might
                 constitute or afford a legal or equitable discharge or release
                 of or defense to a guarantor or surety other than the actual
                 payment and performance by any Subsidiary Guarantor under this
                 guaranty.

                 (c)  Agent and Lenders may invoke the benefits of this Article
         against any Subsidiary Guarantor before pursuing any remedies against
         Borrower or any other Subsidiary Guarantor or any other Person.  Agent
         or Lenders may maintain an action against any Subsidiary Guarantor
         hereunder without joining Borrower or any other Subsidiary Guarantor
         therein and without bringing separate action against Borrower or any
         other Subsidiary Guarantor.

                 (d)  If any payment to Agent or Lenders by Borrower or any
         Subsidiary Guarantor is held to constitute a preference or a voidable
         transfer under applicable state or federal laws, or if for any other
         reason Agent or any Lender is required to refund such payment to the
         payor thereof or to pay the amount thereof to any other Person, such
         payment to Agent or Lenders shall not constitute a release of any
         guarantor from any liability hereunder, and each guarantor agrees to
         pay such amount to Agent or Lenders on demand and agrees and
         acknowledges that this guaranty shall continue to be effective or
         shall be reinstated, as the case may be, to the extent of any such
         payment or payments.  Any transfer by subrogation which is made as
         contemplated in Section 6A.6 prior to any such payment or payments
         shall (regardless of the terms of such transfer) be automatically
         voided upon the making of any such payment or payments, and all rights
         so transferred shall thereupon revert to and be vested in Agent and
         Lenders.

                 (e)  This is a continuing guaranty and shall apply to and
         cover all Obligations and renewals and extensions thereof and
         substitutions therefor from time to time.

         Section 6A.3.  Waiver.  Each Subsidiary Guarantor hereby waives, with
respect to the Obligations, this guaranty, and the other Loan Documents:





                                      -49-
   53
                 (a)  notice of the incurrence of any Obligation by Borrower.

                 (b)  notice that Agent, Lenders, Borrower, any Subsidiary
         Guarantor, or any other Person has taken or omitted to take any action
         under any Loan Document or any other agreement or instrument relating
         thereto or relating to any Obligation.

                 (c)  notice of acceptance of this guaranty and all rights of
         Subsidiary Guarantor under Section 34.02 of the Texas Business and
         Commerce Code.

                 (d)  demand, presentment for payment, and notice of demand, 
         dishonor, nonpayment, or nonperformance.

                 (e)  notice of intention to accelerate, notice of
         acceleration, protest, notice of protest, and all other notices of any
         kind whatsoever.

         Section 6A.4.  No Subrogation.  No Subsidiary Guarantor shall have any
right of subrogation with respect hereto (including any right of subrogation
under Section 34.04 of the Texas Business and Commerce Code).  Each Subsidiary
Guarantor hereby waives any rights to enforce any remedy which such Subsidiary
Guarantor may have against Borrower with respect to its obligations under this
Article VI or under applicable laws.  Each Subsidiary Guarantor hereby
irrevocably agrees, to the fullest extent permitted by law, that it will not
exercise (and herein waives) any rights against Borrower or any other Person
which it may acquire by way of subrogation, contribution, reimbursement,
indemnification or exoneration under or with respect to this Agreement, the
other Loan Documents or applicable law, by any payment made hereunder or
otherwise.  If the foregoing waivers are adjudicated unenforceable by a court
of competent jurisdiction, then each Subsidiary Guarantor agrees that no
liability or obligation of Borrower that shall accrue by virtue of any right to
subrogation, contribution, indemnity, reimbursement or exoneration shall be
paid, nor shall any such liability or obligation be deemed owed, until all of
the Obligations shall have been paid in full.

         Section 6A.5.  Subordination.  Each Subsidiary Guarantor hereby
subordinates and makes inferior to the Obligations any and all indebtedness now
or at any time hereafter owed by Borrower to any Subsidiary Guarantor.  Each
Subsidiary Guarantor agrees that after the occurrence of any Default or Event
of Default it will neither permit Borrower to repay such indebtedness or any
part thereof nor accept payment from Borrower of such indebtedness or any part
thereof without the prior written consent of Majority Lender.  If any
Subsidiary Guarantor receives any such payment without the prior written
consent of Majority Lenders, the amount so paid shall be held in trust for the
benefit of Agent and Lenders, shall be segregated from the other funds of such
Subsidiary Guarantor, and shall forthwith be paid over to Agent





                                      -50-
   54
and Lenders to be held by Agent and Lenders as collateral for, or then or at
any time thereafter applied in whole or in part by Agent and Lenders against,
all or any portions of the Obligations, whether matured or unmatured, in such
order as Agent and Lenders shall elect.


                  ARTICLE VII - Events of Default and Remedies

         Section 7.1.  Events of Default.  Each of the following events
constitutes an Event of Default under this Agreement:

                 (a)  Any Related Person fails to pay any Obligation
         constituting interest within five (5) days after the date when due or
         any Related Person fails to pay any other Obligation when due and
         payable in each case, whether at a date for the payment of a fixed
         installment or as a contingent or other payment becomes due and
         payable or as a result of acceleration or otherwise;

                 (b)  Any "default" or "event of default" occurs under any Loan
         Document which defines either such term, and the same is not remedied
         within the applicable period of grace (if any) provided in such Loan
         Document;

                 (c)  Any Related Person fails to duly observe, perform or
         comply with any covenant, agreement or provision of Section 5.1(d),
         Section 5.2 or Section 6A.1;

                 (d)  Any Related Person fails (other than as referred to in
         subsections (a), (b) or (c) above) to duly observe, perform or comply
         with any covenant, agreement, condition or provision of any Loan
         Document, and such failure remains unremedied for a period of thirty
         (30) days after notice of such failure is given by Agent to Borrower;

                 (e)  Any representation or warranty previously, presently or
         hereafter made in writing by or on behalf of any Related Person in
         connection with any Loan Document shall prove to have been false or
         incorrect in any material respect on any date on or as of which made,
         or any Loan Document at any time ceases to be valid, binding and
         enforceable as warranted in Section 4.1(e) for any reason other than
         its release or subordination by Agent;

                 (f)  Any Related Person fails to duly observe, perform or
         comply with any agreement with any Person or any term or condition of
         any instrument, if such agreement or instrument is materially
         significant to Borrower or materially significant to any Subsidiary
         Guarantor, and such failure is not remedied within the applicable
         period of grace (if any) provided in such agreement or instrument;

                 (g)  Any Related Person (i) fails to pay any portion, when
         such portion is due, of any of its Debt in excess of





                                      -51-
   55
         $1,000,000, or (ii) breaches or defaults in the performance of any
         agreement or instrument by which any such Debt is issued, evidenced,
         governed, or secured, which breach would entitle the holder thereof to
         accelerate such Debt, and any such failure, breach or default
         continues beyond any applicable period of grace provided therefor;

                 (h)  Any Related Person:

                      (i)    suffers the entry against it of a judgment,
                 decree or order for relief by a court of competent
                 jurisdiction in an involuntary proceeding commenced under any
                 applicable bankruptcy, insolvency or other similar law of any
                 jurisdiction now or hereafter in effect, including the federal
                 Bankruptcy Code, as from time to time amended, or has any such
                 proceeding commenced against it which remains undismissed for
                 a period of thirty days; or

                      (ii)   commences a voluntary case under any applicable
                 bankruptcy, insolvency or similar law now or hereafter in
                 effect, including the federal Bankruptcy Code, as from time to
                 time amended; or applies for or consents to the entry of an
                 order for relief in an involuntary case under any such law; or
                 makes a general assignment for the benefit of creditors; or
                 fails generally to pay (or admits in writing its inability to
                 pay) its debts as such debts become due; or takes corporate or
                 other action to authorize any of the foregoing; or

                      (iii)  suffers the appointment of or taking
                 possession by a receiver, liquidator, assignee, custodian,
                 trustee, sequestrator or similar official of all or a
                 substantial part of its assets in a proceeding brought against
                 or initiated by it, and such appointment is neither made
                 ineffective nor discharged within thirty days after the making
                 thereof, or such appointment or taking possession is at any
                 time consented to, requested by, or acquiesced to by it; or

                      (iv)   suffers the entry against it of a final
                 judgment for the payment of money in excess of $1,000,000 (not
                 covered by insurance satisfactory to Agent in its discretion),
                 unless the same is discharged within thirty days after the
                 date of entry thereof or an appeal or appropriate proceeding
                 for review thereof is taken within such period and a stay of
                 execution pending such appeal is obtained; or

                      (v)    suffers a writ or warrant of attachment or any
                 similar process to be issued by any court against all or any
                 substantial part of its property, and such writ or warrant of
                 attachment or any similar process is not stayed or released
                 prior to the seizure thereunder





                                      -52-
   56
                 of any such property (and in any event within thirty days
                 after the entry or levy thereof or after any stay is vacated
                 or set aside);

                 (i)  Either (i) any "accumulated funding deficiency" (as
         defined in Section 412(a) of the Internal Revenue Code of 1986, as
         amended) in excess of $3,000,000 exists with respect to any ERISA
         Plan, whether or not waived by the Secretary of the Treasury or his
         delegate, or (ii) any Termination Event occurs with respect to any
         ERISA Plan and the then current value of such ERISA Plan's benefit
         liabilities exceeds the then current value of such ERISA Plan's assets
         available for the payment of such benefit liabilities by more than
         $3,000,000 (or in the case of a Termination Event involving the
         withdrawal of a substantial employer, the withdrawing employer's
         proportionate share of such excess exceeds such amount); and

                 (j)  Any material adverse change occurs in Borrower's
         Consolidated financial condition or results of operations, other than
         any such change resulting from the matters designated as (III)(1) or
         (III)(2) in the Disclosure Schedule.

Upon the occurrence of an Event of Default described in subsection (h)(i),
(h)(ii) or (h)(iii) of this section with respect to Borrower, all of the
Obligations shall thereupon be immediately due and payable, without demand,
presentment, notice of demand or of dishonor and nonpayment, protest, notice of
protest, notice of intention to accelerate, declaration or notice of
acceleration, or any other notice or declaration of any kind, all of which are
hereby expressly waived by Borrower and each Related Person who at any time
ratifies or approves this Agreement.  During the continuance of any other Event
of Default, Agent at any time and from time to time may (and upon written
instructions from Majority Lenders, Agent shall), without notice to Borrower or
any other Related Person, declare any or all of the Obligations immediately due
and payable, and all such Obligations shall thereupon be immediately due and
payable, without demand, presentment, notice of demand or of dishonor and
nonpayment, protest, notice of protest, notice of intention to accelerate,
declaration or notice of acceleration, or any other notice or declaration of
any kind, all of which are hereby expressly waived by Borrower and each Related
Person who at any time ratifies or approves this Agreement.  After any such
acceleration (whether automatic or due to any declaration by Agent), any
obligation of any Lender to make any further Advances shall be permanently
terminated.

         Section 7.2.  Remedies.  If any Default shall occur and be continuing
(a) Agent shall, upon written instructions from Majority Lenders, protect and
enforce Lenders' rights under the Loan Documents by any appropriate proceedings
and enforce the payment of any Obligations due Lenders or enforce any other
legal or equitable right which Lenders may have, provided Agent shall not be
required to exercise any discretion or take any action which exposes it to a
risk of personal liability that it considers unreasonable or which is contrary
to the Loan Documents or to applicable law, and (b) each Lender may protect and
enforce





                                      -53-
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its rights under the Loan Documents by any appropriate proceedings, including
proceedings for specific performance of any covenant or agreement contained in
any Loan Document, and may enforce the payment of any Obligations due it or
enforce any other legal or equitable right which it may have.  All rights,
remedies and powers conferred upon Agent and Lenders under the Loan Documents
shall be deemed cumulative and not exclusive of any other rights, remedies or
powers available under the Loan Documents or at law or in equity.

         Section 7.3.  INDEMNITY.  BORROWER AGREES TO INDEMNIFY AGENT AND EACH
LENDER, UPON DEMAND, FROM AND AGAINST ANY AND ALL LIABILITIES, OBLIGATIONS,
CLAIMS, LOSSES, DAMAGES, PENALTIES, FINES, ACTIONS, JUDGMENTS, SUITS,
SETTLEMENTS, COSTS, EXPENSES OR DISBURSEMENTS (INCLUDING REASONABLE FEES OF
ATTORNEYS, ACCOUNTANTS, EXPERTS AND ADVISORS) OF ANY KIND OR NATURE WHATSOEVER
(IN THIS SECTION COLLECTIVELY CALLED "LIABILITIES AND COSTS") WHICH TO ANY
EXTENT (IN WHOLE OR IN PART) MAY BE IMPOSED ON, INCURRED BY, OR ASSERTED
AGAINST AGENT OR SUCH LENDER GROWING OUT OF, RESULTING FROM OR IN ANY OTHER WAY
ASSOCIATED WITH ANY OF THE LOAN DOCUMENTS AND THE TRANSACTIONS AND EVENTS
(INCLUDING THE ENFORCEMENT OR DEFENSE THEREOF) AT ANY TIME ASSOCIATED THEREWITH
OR CONTEMPLATED THEREIN (INCLUDING ANY VIOLATION OR NONCOMPLIANCE WITH ANY
ENVIRONMENTAL LAWS BY ANY RELATED PERSON OR ANY LIABILITIES OR DUTIES OF ANY
RELATED PERSON, AGENT OR ANY LENDER WITH RESPECT TO HAZARDOUS MATERIALS FOUND
IN OR RELEASED INTO THE ENVIRONMENT).  THE FOREGOING INDEMNIFICATION SHALL
APPLY WHETHER OR NOT SUCH LIABILITIES AND COSTS ARE IN ANY WAY OR TO ANY EXTENT
CAUSED, IN WHOLE OR IN PART, BY ANY NEGLIGENT ACT OR OMISSION OF ANY KIND BY
AGENT OR ANY LENDER, PROVIDED ONLY THAT NEITHER AGENT NOR ANY LENDER SHALL BE
ENTITLED UNDER THIS SECTION TO RECEIVE INDEMNIFICATION FOR THAT PORTION, IF
ANY, OF ANY LIABILITIES AND COSTS WHICH IS PROXIMATELY CAUSED BY ITS OWN
INDIVIDUAL GROSS NEGLIGENCE OR WILLFUL MISCONDUCT, AS DETERMINED IN A FINAL
JUDGMENT.  IF ANY PERSON (INCLUDING BORROWER OR ANY OF ITS AFFILIATES) EVER
ALLEGES SUCH GROSS NEGLIGENCE OR WILLFUL MISCONDUCT BY AGENT OR ANY LENDER, THE
INDEMNIFICATION PROVIDED FOR IN THIS SECTION SHALL NONETHELESS BE PAID UPON
DEMAND, SUBJECT TO LATER ADJUSTMENT OR REIMBURSEMENT, UNTIL SUCH TIME AS A
COURT OF COMPETENT JURISDICTION ENTERS A FINAL JUDGMENT AS TO THE EXTENT AND
EFFECT OF THE ALLEGED GROSS NEGLIGENCE OR WILLFUL MISCONDUCT.  AS USED IN THIS
SECTION THE TERMS "AGENT" AND "LENDER" SHALL REFER NOT ONLY TO THE PERSONS
DESIGNATED AS SUCH IN SECTION 1.1 BUT ALSO TO EACH DIRECTOR, OFFICER, AGENT,
ATTORNEY, EMPLOYEE, REPRESENTATIVE AND AFFILIATE OF SUCH PERSON.

                              ARTICLE VIII - Agent

         Section 8.1.  Appointment and Authority.  Each Lender hereby
irrevocably authorizes Agent, and Agent hereby undertakes, to receive payments
of principal, interest and other amounts due hereunder as specified herein and
to take all other actions and to exercise such powers under the Loan Documents
as are specifically delegated to Agent by the terms hereof or thereof, together
with all other powers reasonably incidental thereto.  The relationship of Agent
to Lenders is only that of one commercial bank acting as administrative agent
for others, and nothing in the Loan Documents shall be construed to constitute





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Agent a trustee or other fiduciary for any holder of any of the Notes or of any
participation therein nor to impose on Agent duties and obligations other than
those expressly provided for in the Loan Documents.  With respect to any
matters not expressly provided for in the Loan Documents and any matters which
the Loan Documents place within the discretion of Agent, Agent shall not be
required to exercise any discretion or take any action, and it may request
instructions from Lenders with respect to any such matter, in which case it
shall be required to act or to refrain from acting (and shall be fully
protected and free from liability to all Lenders in so acting or refraining
from acting) upon the instructions of Majority Lenders (including itself),
provided, however, that Agent shall not be required to take any action which
exposes it to a risk of personal liability that it considers unreasonable or
which is contrary to the Loan Documents or to applicable law.  Upon receipt by
Agent from Borrower of any communication calling for action on the part of
Lenders or upon notice from any Lender to Agent of any Default or Event of
Default, Agent shall promptly notify each Lender thereof.

         Section 8.2.  Exculpation, Agent's Reliance, Etc.  NEITHER AGENT NOR
ANY OF ITS DIRECTORS, OFFICERS, AGENTS, ATTORNEYS, OR EMPLOYEES SHALL BE LIABLE
FOR ANY ACTION TAKEN OR OMITTED TO BE TAKEN BY ANY OF THEM UNDER OR IN
CONNECTION WITH THE LOAN DOCUMENTS, INCLUDING THEIR NEGLIGENCE OF ANY KIND,
EXCEPT THAT EACH SHALL BE LIABLE FOR ITS OWN GROSS NEGLIGENCE OR WILLFUL
MISCONDUCT.  Without limiting the generality of the foregoing, Agent (a) may
treat the payee of any Note as the holder thereof until Agent receives written
notice of the assignment or transfer thereof in accordance with this Agreement,
signed by such payee and in form satisfactory to Agent; (b) may consult with
legal counsel (including counsel for Borrower), independent public accountants
and other experts selected by it and shall not be liable for any action taken
or omitted to be taken in good faith by it in accordance with the advice of
such counsel, accountants or experts; (c) makes no warranty or representation
to any Lender and shall not be responsible to any Lender for any statements,
warranties or representations made in or in connection with the Loan Documents;
(d) shall not have any duty to ascertain or to inquire as to the performance or
observance of any of the terms, covenants or conditions of the Loan Documents
on the part of any Related Person or to inspect the property (including the
books and records) of any Related Person; (e) shall not be responsible to any
Lender for the due execution, legality, validity, enforceability, genuineness,
sufficiency or value of any Loan Document or any instrument or document
furnished in connection therewith; (f) may rely upon the representations and
warranties of the Related Persons and the Lenders in exercising its powers
hereunder; and (g) shall incur no liability under or in respect of the Loan
Documents by acting upon any notice, consent, certificate or other instrument
or writing (including any telecopy, telegram, cable or telex) believed by it to
be genuine and signed or sent by the proper Person or Persons.





                                      -55-
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         Section 8.3.  Lenders' Credit Decisions.  Each Lender acknowledges
that it has, independently and without reliance upon Agent or any other Lender,
made its own analysis of Borrower and the transactions contemplated hereby and
its own independent decision to enter into this Agreement and the other Loan
Documents.  Each Lender also acknowledges that it will, independently and
without reliance upon 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 decisions in taking or not taking action under the Loan Documents.

         Section 8.4.  Indemnification.  Each Lender agrees to indemnify Agent
(to the extent not reimbursed by Borrower within ten (10) days after demand)
from and against such Lender's Percentage Share of any and all liabilities,
obligations, claims, losses, damages, penalties, fines, actions, judgments,
suits, settlements, costs, expenses or disbursements (including reasonable fees
of attorneys, accountants, experts, and advisors) of any kind or nature
whatsoever (in this section collectively called "liabilities and costs") which
to any extent (in whole or in part) may be imposed on, incurred by, or asserted
against Agent growing out of, resulting from or in any other way associated
with any of the Loan Documents and the transactions and events (including the
enforcement thereof) at any time associated therewith or contemplated therein
(including any violation or noncompliance with any Environmental Laws by any
Person or any liabilities or duties of any Person with respect to Hazardous
Materials found in or released into the environment).  THE FOREGOING
INDEMNIFICATION SHALL APPLY WHETHER OR NOT SUCH LIABILITIES AND COSTS ARE IN
ANY WAY OR TO ANY EXTENT CAUSED, IN WHOLE OR IN PART, BY ANY NEGLIGENT ACT OR
OMISSION OF ANY KIND BY AGENT, PROVIDED ONLY THAT NO LENDER SHALL BE OBLIGATED
UNDER THIS SECTION TO INDEMNIFY AGENT FOR THAT PORTION, IF ANY, OF ANY
LIABILITIES AND COSTS WHICH IS PROXIMATELY CAUSED BY AGENT'S OWN INDIVIDUAL
GROSS NEGLIGENCE OR WILLFUL MISCONDUCT, AS DETERMINED IN A FINAL JUDGMENT.
Cumulative of the foregoing, each Lender agrees to reimburse Agent promptly
upon demand for such Lender's Percentage Share of any costs and expenses to be
paid to Agent by Borrower under Section 5.1(i) to the extent that Agent is not
timely reimbursed for such expenses by Borrower as provided in such section.
As used in this section the term "Agent" shall refer not only to the Person
designated as such in Section 1.1 but also to each director, officer, agent
attorney, employee, representative and Affiliate of such Person.

         Section 8.5.  Rights as Lender.  In its capacity as a Lender, Agent
shall have the same rights and obligations as any Lender and may exercise such
rights as though it were not Agent.  Agent may accept deposits from, lend money
to, act as Trustee under indentures of, and generally engage in any kind of
business with any of the Related Persons or their Affiliates, all as if it were
not Agent hereunder and without any duty to account therefor to any other
Lender.





                                      -56-
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         Section 8.6.  Sharing of Set-Offs and Other Payments.  Each of Agent
and Lender agrees that if it shall, whether through the exercise of rights
under Loan Documents or rights of banker's lien, set off, or counterclaim
against Borrower or otherwise, obtain payment of a portion of the aggregate
Obligations owed to it which, taking into account all distributions made by
Agent under Section 2.9, causes Agent or such Lender to have received more than
it would have received had such payment been received by Agent and distributed
pursuant to Section 2.9, then (a) it shall be deemed to have simultaneously
purchased and shall be obligated to purchase interests in the Obligations as
necessary to cause Agent and all Lenders to share all payments as provided for
in Section 2.9, and (b) such other adjustments shall be made from time to time
as shall be equitable to ensure that Agent and all Lenders share all payments
of Obligations as provided in Section 2.9; provided, however, that nothing
herein contained shall in any way affect the right of Agent or any Lender to
obtain payment (whether by exercise of rights of banker's lien, set-off or
counterclaim or otherwise) of indebtedness other than the Obligations.
Borrower expressly consents to the foregoing arrangements and agrees that any
holder of any such interest or other participation in the Obligations, whether
or not acquired pursuant to the foregoing arrangements, may to the fullest
extent permitted by law exercise any and all rights of banker's lien, set-off,
or counterclaim as fully as if such holder were a holder of the Obligations in
the amount of such interest or other participation.  If all or any part of any
funds transferred pursuant to this section is thereafter recovered from the
seller under this section which received the same, the purchase provided for in
this section shall be deemed to have been rescinded to the extent of such
recovery, together with interest, if any, if interest is required pursuant to
court order to be paid on account of the possession of such funds prior to such
recovery.

         Section 8.7.  Investments.  Whenever Agent in good faith determines
that it is uncertain about how to distribute to Lenders any funds which it has
received, or whenever Agent in good faith determines that there is any dispute
among Lenders about how such funds should be distributed, Agent may choose to
defer distribution of the funds which are the subject of such uncertainty or
dispute.  If Agent in good faith believes that the uncertainty or dispute will
not be promptly resolved, or if Agent is otherwise required to invest funds
pending distribution to Lenders, Agent shall invest such funds pending
distribution; all interest on any such investment shall be distributed upon the
distribution of such investment and in the same proportion and to the same
Persons as such investment.  All moneys received by Agent for distribution to
Lenders (other than to the Person who is Agent in its separate capacity as a
Lender) shall be held by Agent pending such distribution solely as Agent for
such Lenders, and Agent shall have no equitable title to any portion thereof.

         Section 8.8.  Benefit of Article VIII.  The provisions of this Article
(other than the following Section 8.9) are intended solely for the benefit of
Agent and Lenders, and no Related





                                      -57-
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Person shall be entitled to rely on any such provision or assert any such
provision in a claim or defense against Agent or any Lender.  Agent and Lenders
may waive or amend such provisions as they desire without any notice to or
consent of Borrower or any Related Person.

         Section 8.9.  Resignation.  Agent may resign at any time by giving
written notice thereof to Lenders and Borrower.  Each such notice shall set
forth the date of such resignation.  Upon any such resignation Majority Lenders
shall have the right to appoint a successor Agent.  A successor must be
appointed for any retiring Agent, and such Agent's resignation shall become
effective when such successor accepts such appointment.  If, within thirty days
after the date of the retiring Agent's resignation, no successor Agent has been
appointed and has accepted such appointment, then the retiring Agent may
appoint a successor Agent, which shall be a commercial bank organized or
licensed to conduct a banking or trust business under the laws of the United
States of America or of any state thereof.  Upon the acceptance of any
appointment as Agent hereunder by a successor Agent, the retiring Agent shall
be discharged from its duties and obligations under this Agreement and the
other Loan Documents.  After any retiring Agent's resignation hereunder the
provisions of this Article VIII shall continue to inure to its benefit as to
any actions taken or omitted to be taken by it while it was Agent under the
Loan Documents.

         Section 8.10.  Withholding Tax.

                 (a)      If any Lender is a "foreign corporation" within the
         meaning of the United States Internal Revenue Code of 1936 (the
         "Code"), such Lender shall deliver to the Agent, along with such other
         form or forms as may be required under the Code or other laws of the
         United States as a condition to exemption from, or reduction of,
         United States withholding tax, either:  (i) if such Lender claims an
         exemption from, or a reduction of, United States withholding tax under
         a tax treaty, a properly completed Internal Revenue Service ("IRS")
         Form 1001 before the payment of any interest in the first calendar
         year and in each third succeeding calendar year during which interest
         may be paid under this Agreement; or (ii) if such Lender claims that
         interest paid under this Agreement is exempt from United States
         withholding tax because it is effectively connected with a United
         States trade or business of such Lender, two (2) properly completed
         and executed copies of IRS Form 4224 before the payment of any
         interest is due in the first taxable year of such Lender, and in each
         succeeding taxable year of such Lender, during which interest may be
         paid under this Agreement.  Such Lender agrees to notify the Agent of
         any change in circumstances which would modify or render invalid any
         claimed exemption or reduction.

                 (b)      Where any Lender is entitled to a reduction in the
         applicable withholding tax, the Agent may withhold from any





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   62
         interest payment to such Lender an amount equivalent to the applicable
         withholding tax after taking into account such reduction.  If the
         forms or other documentation required by subparagraph (a) above are
         not delivered to the Agent, then the Agent may withhold from any
         interest payment to the Lender not providing such forms or other
         documentation an amount equivalent to the applicable withholding tax.

                 (c)      If the IRS or any authority of the United States or
         other jurisdiction asserts a claim that the Agent did not properly
         withhold tax from amounts paid to or for the account of any Lender
         (because the appropriate form was not delivered or properly executed,
         or because such Lender failed to notify the Agent of a change in
         circumstances which rendered the exemption from, or reduction of,
         withholding tax ineffective, or for any other reason) such Lender
         shall indemnify the Agent fully for all amounts paid, directly or
         indirectly, by the Agent as tax or otherwise, including penalties and
         interest, together with all expenses incurred, including legal
         expenses, allocated staff costs, and any out of pocket expenses.

                 (d)      In the event that any Lender sells, assigns, grants
         participations in, or otherwise transfers its rights under this
         Agreement or its respective Note, the Participant shall comply and be
         bound by the terms, of subparagraphs (a), (b) and (c) above as though
         it were such Lender.

                           ARTICLE IX - Miscellaneous

         Section 9.1.  Waivers and Amendments; Acknowledgements.

                 (a)  Waivers and Amendments.  No failure or delay (whether by
         course of conduct or otherwise) by Agent or any Lender in exercising
         any right, power or remedy which Agent or such Lender may have under
         any of the Loan Documents shall operate as a waiver thereof or of any
         other right, power or remedy, nor shall any single or partial exercise
         by Agent or such Lender of any such right, power or remedy preclude
         any other or further exercise thereof or of any other right, power or
         remedy.  No waiver of any provision of any Loan Document and no
         consent to any departure therefrom shall ever be effective unless it
         is in writing and signed as provided below in this section, and then
         such waiver or consent shall be effective only in the specific
         instances and for the purposes for which given and to the extent
         specified in such writing.  No notice to or demand on any Related
         Person shall in any case of itself entitle any Related Person to any
         other or further notice or demand in similar or other circumstances.
         This Agreement and the other Loan Documents set forth the entire
         understanding between the parties hereto with respect to the
         transactions contemplated herein and therein and supersede all prior
         discussions and understandings with respect to the subject matter
         hereof and thereof, and no waiver, consent, release,





                                      -59-
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         modification or amendment of or supplement to this Agreement or the
         other Loan Documents shall be valid or effective against any party
         hereto unless the same is in writing and signed by (i) if such party
         is Borrower, by Borrower, (ii) if such party is Agent, by Agent and
         (iii) if such party is a Lender, by such Lender or by Agent on behalf
         of Lenders with the written consent of Majority Lenders (which consent
         regarding the termination of the Loan Documents has already been given
         as provided in Section 9.7).  Notwithstanding the foregoing or
         anything to the contrary herein, Agent shall not, without the prior
         consent of each individual Lender, execute and deliver on behalf of
         such Lender any waiver or amendment which would:  (1) waive any of the
         conditions specified in Article III (provided that Agent may in its
         discretion withdraw any request it has made under Section 3.2(f)), (2)
         increase the amount of such Lender's Percentage Share of the Maximum
         Loan Amount or subject such Lender to any additional obligations, (3)
         reduce any fees hereunder, or the principal of, or interest on, such
         Lender's Note, (4) postpone any date fixed for any payment of any fees
         hereunder, or principal of, or interest on, such Lender's Note, (5)
         amend the definition herein of "Majority Lenders" or otherwise change
         the aggregate amount of Percentage Shares which is required for Agent,
         Lenders or any of them to take any particular action under the Loan
         Documents, or (6) release Borrower from its obligation to pay such
         Lender's Note and Subsidiary Guarantor from its guaranty of such
         payment.

                 (b)  Acknowledgements and Admissions.  Borrower hereby
         represents, warrants, acknowledges and admits that (i) it has been
         advised by counsel in the negotiation, execution and delivery of the
         Loan Documents to which it is a party, (ii) it has made an independent
         decision to enter into this Agreement and the other Loan Documents to
         which it is a party, without reliance on any representation, warranty,
         covenant or undertaking by Agent or any Lender, whether written, oral
         or implicit, other than as expressly set out in this Agreement or in
         another Loan Document delivered on or after the date hereof, (iii)
         there are no representations, warranties, covenants, undertakings or
         agreements by Agent or any Lender as to the Loan Documents except as
         expressly set out in this Agreement or in another Loan Document
         delivered on or after the date hereof, (iv) neither Agent nor any
         Lender has any fiduciary obligation toward Borrower with respect to
         any Loan Document or the transactions contemplated thereby, (v) the
         relationship pursuant to the Loan Documents between Borrower, on one
         hand, and Agent and each Lender, on the other hand, is and shall be
         solely that of debtor and creditor, respectively, (vi) no partnership
         or joint venture exists with respect to the Loan Documents between any
         of Borrower, Agent and Lenders, (vii) Agent is not Borrower's Agent,
         but Agent for Lenders, (viii) should an Event of Default or Default
         occur or exist Agent and each Lender will determine in its sole
         discretion and for its own reasons





                                      -60-
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         what remedies and actions it will or will not exercise or take at that
         time, (ix) without limiting any of the foregoing, Borrower is not
         relying upon any representation or covenant by Agent or any Lender, or
         any representative thereof, and no such representation or covenant has
         been made, that Agent or any Lender will, at the time of an Event of
         Default or Default, or at any other time, waive, negotiate, discuss,
         or take or refrain from taking any action permitted under the Loan
         Documents with respect to any such Event of Default or Default or any
         other provision of the Loan Documents, and (x) Agent and all Lenders
         have relied upon the truthfulness of the acknowledgements in this
         section in deciding to execute and deliver this Agreement and to make
         their Loans.

         THIS WRITTEN AGREEMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE
FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF
PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.

         THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

         Section 9.2.  Survival of Agreements; Cumulative Nature.  All of the
Related Persons' various representations, warranties, covenants and agreements
in the Loan Documents shall survive the execution and delivery of this
Agreement and the other Loan Documents and the performance hereof and thereof,
including the making or granting  of the Loans and the  delivery of the Notes
and the other Loan Documents, and shall further survive until all of the
Obligations are paid in full to Agent and Lenders and all of Agent's and
Lenders' obligations to Borrower are terminated.  All statements and agreements
contained in any certificate or other instrument delivered by any Related
Person to Agent or any Lender under any Loan Document shall be deemed
representations and warranties by Borrower or agreements and covenants of
Borrower under this Agreement.  The representations, warranties, indemnities,
and covenants made by the Related Persons in the Loan Documents, and the
rights, powers, and privileges granted to Agent and Lenders in the Loan
Documents, are cumulative, and, except for expressly specified waivers and
consents, no Loan Document shall be construed in the context of another to
diminish, nullify, or otherwise reduce the benefit to Agent or any Lender of
any such representation, warranty, indemnity, covenant, right, power or
privilege.  In particular and without limitation, no exception set out in this
Agreement to any representation, warranty, indemnity, or covenant herein
contained shall apply to any similar representation, warranty, indemnity, or
covenant contained in any other Loan Document, and each such similar
representation, warranty, indemnity, or covenant shall be subject only to those
exceptions which are expressly made applicable to it by the terms of the
various Loan Documents.

         Section 9.3.  Notices.  All notices, requests, consents, demands and
other communications required or permitted under any Loan Document shall be in
writing, unless otherwise specifically





                                      -61-
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provided in such Loan Document (provided that Agent may give telephonic notices
to Lenders), and shall be deemed sufficiently given or furnished if delivered
by personal delivery, by telecopy or telex, by delivery service with proof of
delivery, or by registered or certified United States mail, postage prepaid, to
Borrower and the Related Persons at the address of Borrower specified on the
signature pages hereto and to Agent and the other Lenders at their addresses
specified on the signature pages hereto (unless changed by similar notice in
writing given by the particular Person whose address is to be changed).  Any
such notice or communication shall be deemed to have been given (a) in the case
of personal delivery or delivery service, as of the date of first attempted
delivery at the address provided herein, (b) in the case of telecopy or telex,
upon receipt, or (c) in the case of registered or certified United States mail,
three days after deposit in the mail; provided, however, that no Request for
Advance or Rate Election shall become effective until actually received by
Agent.

         Section 9.4.  Joint and Several Liability; Parties in Interest.  All
Obligations which are incurred by two or more Related Persons shall be their
joint and several obligations and liabilities subject to the limitations
expressly set forth in Article 6A.  All grants, covenants and agreements
contained in the Loan Documents shall bind and inure to the benefit of the
parties thereto and their respective successors and assigns; provided, however,
that no Related Person may assign or transfer any of its rights or delegate any
of its duties or obligations under any Loan Document without the prior consent
of Majority Lenders.  Neither Borrower nor any Affiliates of Borrower shall
directly or indirectly purchase or otherwise retire any Obligations owed to any
Lender nor will any Lender accept any offer to do so, unless each Lender shall
have received substantially the same offer with respect to the same Percentage
Share of the Obligations owed to it.  If Borrower or any Affiliate of Borrower
at any time purchases some but less than all of the Obligations owed to Agent
and all Lenders, such purchaser shall not be entitled to any rights of Agent or
Lender under the Loan Documents unless and until Borrower or its Affiliates
have purchased all of the Obligations.

         Section 9.5.  Governing Law; Submission to Process.  Except to the
extent that the law of another jurisdiction is expressly elected in a Loan
Document, the Loan Documents shall be deemed contracts and instruments made
under the laws of the State of Texas and shall be construed and enforced in
accordance with and governed by the laws of the State of Texas and the laws of
the United States of America, without regard to principles of conflicts of law.
Chapter 15 of Texas Revised Civil Statutes Annotated Article 5069 (which
regulates certain revolving credit loan accounts and revolving tri-party
accounts) does not apply to this Agreement or to the Notes.  Each of Borrower
and the Subsidiary Guarantors hereby irrevocably submits itself to the
non-exclusive jurisdiction of the state and federal courts sitting in the State
of Texas and agrees and consents that





                                      -62-
   66
service of process may be made upon it or any of the Related Persons in any
legal proceeding relating to the Loan Documents or the Obligations by any means
allowed under Texas or federal law.  Each Related Person agrees to appoint an
agent for service of process in Texas.

         Section 9.6.  Limitation on Interest.  Agent, Lenders, the Related
Persons and any other parties to the Loan Documents intend to contract in
strict compliance with applicable usury law from time to time in effect.  In
furtherance thereof such Persons stipulate and agree that none of the terms and
provisions contained in the Loan Documents shall ever be construed to create a
contract to pay, for the use, forbearance or detention of money, interest in
excess of the maximum amount of interest permitted to be charged by applicable
law from time to time in effect.  Neither any Related Person nor any present or
future guarantors, endorsers, or other Persons hereafter becoming liable for
payment of any Obligation shall ever be liable for unearned interest thereon or
shall ever be required to pay interest thereon in excess of the maximum amount
that may be lawfully charged under applicable law from time to time in effect,
and the provisions of this section shall control over all other provisions of
the Loan Documents which may be in conflict or apparent conflict herewith.
Agent and Lenders expressly disavow any intention to charge or collect
excessive unearned interest or finance charges in the event the maturity of any
Obligation is accelerated.  If (a) the maturity of any Obligation is
accelerated for any reason, (b) any Obligation is prepaid and as a result any
amounts held to constitute interest are determined to be in excess of the legal
maximum, or (c) Agent or any Lender or any other holder of any or all of the
Obligations shall otherwise collect moneys which are determined to constitute
interest which would otherwise increase the interest on any or all of the
Obligations to an amount in excess of that permitted to be charged by
applicable law then in effect, then all sums determined to constitute interest
in excess of such legal limit shall, without penalty, be promptly applied to
reduce the then outstanding principal of the related Obligations or, at Agent's
or such Lender's or holder's option, promptly returned to Borrower or the other
payor thereof upon such determination.  In determining whether or not the
interest paid or payable, under any specific circumstance, exceeds the maximum
amount permitted under applicable law, Agent, Lenders and the Related Persons
(and any other payors thereof) shall to the greatest extent permitted under
applicable law, (i) characterize any non-principal payment as an expense, fee
or premium rather than as interest, (ii) exclude voluntary prepayments and the
effects thereof, and (iii) amortize, prorate, allocate, and spread the total
amount of interest throughout the entire contemplated term of the instruments
evidencing the Obligations in accordance with the amounts outstanding from time
to time thereunder and the maximum legal rate of interest from time to time in
effect under applicable law in order to lawfully charge the maximum amount of
interest permitted under applicable law.  In the event applicable law provides
for an interest ceiling under Texas Revised Civil





                                      -63-
   67
Statutes Annotated article 5069-1.04, that ceiling shall be the indicated rate
ceiling and shall be used when appropriate in determining the Highest Lawful
Rate.  As used in this section the term "applicable law" means the laws of the
State of Texas or the laws of the United States of America, whichever laws
allow the greater interest, as such laws now exist or may be changed or amended
or come into effect in the future.

         Section 9.7.  Termination; Limited Survival.  In its sole and absolute
discretion Borrower may at any time that no Obligations are owing elect in a
written notice delivered to Agent to terminate this Agreement.  Upon receipt by
Agent of such a notice, if no Obligations are then owing this Agreement and all
other Loan Documents shall thereupon be terminated and the parties thereto
released from all prospective obligations thereunder.  Notwithstanding the
foregoing or anything herein to the contrary, any waivers or admissions made by
any Related Person in any Loan Document, any Obligations under Sections 2.10
through 2.14, and any obligations which any Person may have to indemnify or
compensate Agent or any Lender shall survive any termination of this Agreement
or any other Loan Document.  At the request and expense of Borrower, Agent
shall prepare and execute all necessary instruments to reflect and effect such
termination of the Loan Documents.  Agent is hereby authorized to execute all
such instruments on behalf of all Lenders, without the joinder of or further
action by any Lender.

         Section 9.8.  Severability.  If any term or provision of any Loan
Document shall be determined to be illegal or unenforceable all other terms and
provisions of the Loan Documents shall nevertheless remain effective and shall
be enforced to the fullest extent permitted by applicable law.

         Section 9.9.  Counterparts.  This Agreement may be separately executed
in any number of counterparts and by different parties hereto in separate
counterparts, each of which when so executed shall be deemed to constitute one
and the same Agreement.

         SECTION 9.10.  WAIVER OF JURY TRIAL, PUNITIVE DAMAGES, ETC.  EACH OF
BORROWER, AGENT AND LENDERS HEREBY (a) KNOWINGLY, VOLUNTARILY, INTENTIONALLY,
AND IRREVOCABLY WAIVES, TO THE MAXIMUM EXTENT NOT PROHIBITED BY LAW, ANY RIGHT
IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED HEREON, OR
DIRECTLY OR INDIRECTLY AT ANY TIME ARISING OUT OF, UNDER OR IN CONNECTION WITH
THE LOAN DOCUMENTS OR ANY TRANSACTION CONTEMPLATED THEREBY OR ASSOCIATED
THEREWITH, BEFORE OR AFTER MATURITY; (b) IRREVOCABLY WAIVES, TO THE MAXIMUM
EXTENT NOT PROHIBITED BY LAW, ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER IN ANY
SUCH LITIGATION ANY SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES, OR
DAMAGES OTHER THAN, OR IN ADDITION TO, ACTUAL DAMAGES; (c) CERTIFIES THAT NO
PARTY HERETO NOR ANY REPRESENTATIVE OR AGENT OR COUNSEL FOR ANY PARTY HERETO
HAS REPRESENTED, EXPRESSLY OR OTHERWISE, OR IMPLIED THAT SUCH PARTY WOULD NOT,
IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE





                                      -64-
   68
FOREGOING WAIVERS, AND (d) ACKNOWLEDGES THAT IT HAS BEEN INDUCED TO ENTER INTO
THIS AGREEMENT, THE OTHER LOAN DOCUMENTS AND THE TRANSACTIONS CONTEMPLATED
HEREBY AND THEREBY BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND
CERTIFICATIONS CONTAINED IN THIS SECTION.  BORROWER HEREBY REPRESENTS AND
ACKNOWLEDGES THAT IT IS A "BUSINESS CONSUMER" FOR THE PURPOSES OF THE TEXAS
DECEPTIVE TRADE PRACTICES - CONSUMER PROTECTION ACT, THAT IT HAS ASSETS OF
$5,000,000 OR MORE ACCORDING TO ITS MOST RECENT FINANCIAL STATEMENTS PREPARED
IN ACCORDANCE WITH GENERALLY ACCEPTED ACCOUNTING PRINCIPLES, THAT IT HAS
KNOWLEDGE AND EXPERIENCE IN FINANCIAL AND BUSINESS MATTERS THAT ENABLE IT TO
EVALUATE THE MERITS AND RISKS OF CREDIT TRANSACTIONS GENERALLY AND OF THE
TRANSACTIONS CONTEMPLATED BY THE LOAN DOCUMENTS IN PARTICULAR, AND THAT IT IS
NOT IN A SIGNIFICANTLY DISPARATE BARGAINING POSITION WITH RESPECT TO THE
PARTIES TO AND THE TRANSACTIONS CONTEMPLATED BY THE LOAN DOCUMENTS; BORROWER
HEREBY WAIVES THE PROVISIONS OF THE TEXAS DECEPTIVE TRADE PRACTICES - CONSUMER
PROTECTION ACT (OTHER THAN SECTION 17.555 THEREOF), AS FROM TIME TO TIME
AMENDED.

         Section 9.11.  Assignments and Participations

         (a)     Assignments.  Each Lender shall have the right to sell, assign
or transfer all or any part of such Lender's Notes, Advances, Loans and rights
and Obligations relating to Letters of Credit and the associated rights and
obligations under all Loan Documents to one or more financial institutions,
pension plans, investment funds, or similar purchasers; provided that each such
sale, assignment, or transfer shall be with the consent of Agent, Issuing Bank
and Borrower, which consent will not be unreasonably withheld, and the
assignee, transferee or recipient shall have, to the extent of such sale,
assignment, or transfer, the same rights, benefits and obligations as it would
if it were signatory hereof and a holder of such Notes, including, without
limitation, the right to vote on decisions requiring consent or approval of all
Lenders or Majority Lenders and the obligation to fund its Percentage Share of
any Advances or Loans and payments made under Letters of Credit directly to
Agent; provided further that (i) each Lender in making each such sale,
assignment, or transfer must dispose of a pro rata portion of each Loan made by
such Lender and LC Obligations, (ii) each Lender may not offer to sell its
Notes and Loans or interests therein in violation of any securities laws, and
(iii) no such assignments shall become effective until the assigning Lender
delivers to Agent copies of all written assignments and other documents
evidencing any such assignment or related thereto, providing for the assignee's
ratification and agreement to be bound by the terms of this Agreement and the
other Loan Documents.  Within five (5) Business Days after its receipt of
notice that the Agent has received copies of any assignment and the other
documents relating thereto, Borrower shall execute and deliver to the Agent
(for delivery to the relevant assignee) new Notes evidencing such assignee's
assigned Loans and, if the assignor Lender has retained a portion of its Loans,
replacement Notes in the principal amount of the Loans





                                      -65-
   69
retained by the assignor Lender (such Notes to be in exchange for, but not in
payment of, the Notes held by such Lender).

         (b)     Participations.  Each Lender shall have the right to grant
participations in all or any part of such Lender's Notes, Advances, Loans and
rights and obligations relating to Letters of Credit and the associated rights
and obligations under all Loan Documents hereunder to one or more pension
plans, investment funds, financial institutions or similar purchasers; provided
that (i) each such participation shall be with the consent of Agent and Issuing
Bank, which consent shall not be unreasonably withheld, (ii) each Lender
granting a participation shall use its best efforts to give prior notice of any
such participation, but in any event shall promptly notify Agent and Borrower
thereof, (iii) each Lender granting a participation shall retain the right to
vote hereunder, and no participant shall be entitled to vote hereunder on
decisions requiring consent or approval of Majority Lenders (except as set
forth in (v) below), (iv) each Lender and Borrower shall be entitled to deal
with the Lender granting a participation in the same manner as if no
participation had been granted, and (v) no participant shall ever have any
right by reason of its participation to exercise any of the rights of Lenders
hereunder, except that any Lender may agree with any participant that such
Lender will not, without the consent of such participant, consent to any
amendment or waiver described in Section 10.1(a) requiring approval of 100% of
the Lenders.

         (c)     It is understood and agreed that any Lender may provide to
assignees and participants and prospective assignees and participants financial
information and reports and data concerning Borrower's properties and
operations (provided such Persons have agreed in writing to the confidentiality
provisions set forth in Section 5.1(c) regarding such information and reports
and data).





                                      -66-
   70
        IN WITNESS WHEREOF, this Agreement is executed as of the date first
written above.

                                        HECLA MINING COMPANY, Borrower


                                        By:  /s/ John P. Stilwell
                                           --------------------------------
                                           John P. Stilwell
                                           Vice President-Finance
                                           and Treasurer

                                        Address (for Borrower and 
                                        Subsidiary Guarantors):

                                        6500 Mineral Drive
                                        Coeur d'Alene, Idaho  83814-8788
                                        Attention: Vice President-Finance

                                        Telephone: (208) 769-4100
                                        Telecopy: (208) 769-7612


                                        COLORADO AGGREGATE COMPANY OF NEW
                                        MEXICO INC., Subsidiary Guarantor


                                        By:  /s/ Joseph T. Heatherly
                                           -------------------------------
                                           Joseph T. Heatherly
                                           Vice President


                                        KENTUCKY-TENNESSEE CLAY COMPANY,
                                        Subsidiary Guarantor


                                        By:  /s/ Joseph T. Heatherly
                                           -------------------------------
                                           Joseph T. Heatherly
                                           Vice President


                                        K-T FELDSPAR CORPORATION,
                                        Subsidiary Guarantor


                                        By:  /s/ Joseph T. Heatherly
                                           -------------------------------
                                           Joseph T. Heatherly
                                           Vice President


                                        MOUNTAIN WEST PRODUCTS, INC.
                                        Subsidiary Guarantor


                                        By:  /s/ Michael B. White
                                           -------------------------------
                                           Michael B. White, Vice President





                                      -67-
   71


                           Percentage              NATIONSBANK OF TEXAS, N.A.,
                            Share of               Agent and Lender
   Percentage                Maximum
     Share                 Loan Amount
   -----------             -----------
                                             
                                                   By:     /s/ David Rubenking              
                                                      ---------------------------------
                                                      Name:
                                                      Title:
     62.5%              $25,000,000
                                                   Address:

                                                   NationsBank Plaza
                                                   901 Main Street, 49th Floor (75202)
                                                   Post Office Box 830104
                                                   Dallas, Texas  75383
                                                   Attention: Energy Lending Group

                                                   Telephone: (214) 508-1200
                                                   Telecopy: (214) 508-1286

                                                   with a copy to:

                                                   NationsBank of Texas, N.A.
                                                   Denver Energy Group
                                                   370 Seventeenth, Suite 3250
                                                   Denver, Colorado  80202-5632
                                                   Attention:  David Rubenking

                                                   Telephone: (303) 629-6969
                                                   Telecopy: (303) 629-6303


                                                   SEATTLE-FIRST NATIONAL BANK, Lender
     25%                $10,000,000

                                                   By:  /s/ J. Mike Sullivan             
                                                      ---------------------------------
                                                      J. Mike Sullivan, Vice President

                                                   Address:

                                                   Corporate Banking, Spokane Office
                                                   West 601 Riverside Ave., Fl. SFC-5
                                                   Spokane, Washington  99201
                                                   Attention: Joe Poole, Vice Pres.

                                                   Telephone: (509) 353-1469
                                                   Telecopy: (509) 353-1492






                                      -68-
   72

                                             
                                                   BANK OF AMERICA, IDAHO, N.A., Lender
     12.5%              $5,000,000

                                                   By:  /s/ John A. MacPhee              
                                                      ---------------------------------
                                                      John A. MacPhee, Vice President

                                                   Address:

                                                   401 Front Avenue
                                                   P.O. Box 6700
                                                   Coeur d'Alene, Idaho,  83816-1934
                                                   Attention: John A. MacPhee

                                                   Telephone: (208) 667-2571
                                                   Telecopy: (208) 667-842044






                                      -69-