KEY ENERGY SERVICES INC
S-3/A, 1999-03-31
DRILLING OIL & GAS WELLS
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<PAGE>   1
 
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 31, 1999.
    
 
                                                      REGISTRATION NO. 333-67665
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
 
                             ---------------------
 
   
                                AMENDMENT NO. 2
    
                                       TO
                                    FORM S-3
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
 
                             ---------------------
 
                           KEY ENERGY SERVICES, INC.
 
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                                                    <C>
                       MARYLAND                                              04-2648081
   (State or other jurisdiction of incorporation or             (I.R.S. Employer Identification No.)
                    organization)
</TABLE>
 
                          TWO TOWER CENTER, 20TH FLOOR
                        EAST BRUNSWICK, NEW JERSEY 08816
                                 (732) 247-4822
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
 
                                FRANCIS D. JOHN
                          TWO TOWER CENTER, 20TH FLOOR
                        EAST BRUNSWICK, NEW JERSEY 08816
                                 (732) 247-4822
(Name, address and telephone number, including area code, of agent for service)
 
                             ---------------------
 
                                With Copies To:
 
<TABLE>
<S>                                                    <C>
                 JACK D. LOFTIS, JR.                                      SAMUEL N. ALLEN
              KEY ENERGY SERVICES, INC.                               PORTER & HEDGES, L.L.P.
             TWO TOWER CENTER, 20TH FLOOR                            700 LOUISIANA, 35TH FLOOR
           EAST BRUNSWICK, NEW JERSEY 08816                             HOUSTON, TEXAS 77002
                    (732) 247-4822                                         (713) 226-0600
</TABLE>
 
                             ---------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: From time to
time after the Registration Statement becomes effective.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
                        TABLE OF ADDITIONAL REGISTRANTS
                    UNDER REGISTRATION STATEMENT ON FORM S-3
 
   
     The following subsidiaries of Key Energy Services, Inc. are co-registrants
under this Registration Statement for the purpose of providing guarantees, if
any, of payments on debt securities registered hereunder:
    
 
<TABLE>
<CAPTION>
                                                              JURISDICTION OF         I.R.S.
NAME                                                           INCORPORATION      IDENTIFICATION
- ----                                                          ---------------     --------------
<S>                                                           <C>                 <C>
Yale E. Key, Inc............................................     Texas              75-1074929
Key Energy Drilling, Inc....................................    Delaware            22-3363468
WellTech Eastern, Inc.......................................    Delaware            38-3283245
Odessa Exploration Incorporated.............................    Delaware            06-1377021
Kalkaska Oilfield Services, Inc.............................    Michigan            38-3083604
Well-Co Oil Service, Inc....................................     Nevada             75-2513771
Patrick Well Service, Inc...................................     Kansas             48-0799851
Mosley Well Service, Inc....................................   Louisiana            72-0741713
Ram Oil Well Service, Inc...................................   New Mexico           85-0288625
Rowland Trucking Co., Inc...................................   New Mexico           85-0406689
Landmark Fishing & Rental, Inc..............................    Oklahoma            73-1251811
Dunbar Well Service, Inc....................................    Colorado            83-0222628
Frontier Well Service, Inc..................................    Wyoming             84-0532131
Key Rocky Mountain, Inc.....................................    Delaware            22-3530272
Key Four Corners, Inc.......................................    Delaware            22-3530274
Jeter Service Co............................................    Oklahoma            73-1143249
Jeter Well Service, Inc.....................................    Oklahoma            73-1290848
Jeter Transportation, Inc...................................    Oklahoma            73-1387484
Industrial Oilfield Supply, Inc.............................    Oklahoma            73-1387482
Brooks Well Servicing, Inc..................................    Delaware            75-2739749
Updike Brothers, Inc........................................    Wyoming             83-0176350
J.W. Gibson Well Service Company............................    Delaware            74-2035372
Key Energy Services -- South Texas, Inc.....................    Delaware            22-3594553
Key Energy Services -- California, Inc......................    Delaware            22-3617958
Watson Oilfield Service & Supply, Inc.......................    Delaware            22-3582713
WellTech Mid-Continent, Inc.................................    Delaware            73-1532154
Dawson Production Management, Inc...........................    Delaware            76-0525388
Dawson Production Taylor, Inc...............................    Delaware            52-2045563
Dawson Production Acquisition Corp..........................    Delaware            52-2022906
Dawson Production Partners, L.P.............................    Delaware            76-0525389
</TABLE>
<PAGE>   3
 
   
                  SUBJECT TO COMPLETION, DATED MARCH 31, 1999.
    
 
THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE MAY
NOT OFFER THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE SEC
IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES AND WE
ARE NOT SOLICITING AN OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER
OR SALE IS NOT PERMITTED.
 
PROSPECTUS
                                   [KEY LOGO]
 
                                  $500,000,000
                           KEY ENERGY SERVICES, INC.
 
                                Debt Securities
                                Preferred Stock
                                  Common Stock
                                    Warrants
 
                               ------------------
 
     This prospectus is part of a registration statement that we filed with the
SEC using a "shelf" registration process. This means:
 
     - we may issue the debt securities, preferred stock, common stock and
       warrants covered by this prospectus from time to time;
 
     - we will provide a prospectus supplement each time we issue the
       securities;
 
     - the prospectus supplement will provide specific information about the
       terms of that offering and also may add, update or change information
       contained in this prospectus.
 
     Our common stock is listed and traded on the New York Stock Exchange under
the symbol "KEG."
 
   
  CONSIDER CAREFULLY THE RISK FACTORS BEGINNING ON PAGE 7 IN THIS PROSPECTUS.
    
 
Neither the SEC nor any state securities commission has approved these
securities or determined that this prospectus is accurate or complete. Any
representation to the contrary is a criminal offense.
 
   
                    This Prospectus is dated March   , 1999.
    
<PAGE>   4
 
     YOU SHOULD RELY ONLY ON THE INFORMATION INCORPORATED BY REFERENCE OR
PROVIDED IN THIS PROSPECTUS OR ANY PROSPECTUS SUPPLEMENT. WE HAVE NOT AUTHORIZED
ANYONE ELSE TO PROVIDE YOU WITH DIFFERENT INFORMATION. WE ARE NOT MAKING AN
OFFER OF THESE SECURITIES IN ANY STATE WHERE THE OFFER IS NOT PERMITTED.
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
SECTION                                                       PAGE
- -------                                                       ----
<S>                                                           <C>
Where You Can Find More Information.........................    3
Key Energy Services, Inc....................................    4
Ratio of Earnings to Fixed Charges..........................    6
Forward-looking Statements..................................    7
Risk Factors................................................    7
Use of Proceeds.............................................   12
Plan of Distribution........................................   13
Description of Debt Securities..............................   15
Description of Capital Stock................................   20
Description of Warrants.....................................   21
Legal Matters...............................................   21
Experts.....................................................   21
</TABLE>
    
 
                                        2
<PAGE>   5
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
     We have filed with the SEC a registration statement on Form S-3 (Reg. No.
333-67665) with respect to the securities we are offering. This prospectus does
not contain all the information contained in the registration statement,
including its exhibits and schedules. You should refer to the registration
statement, including the exhibits and schedules, for further information about
us and the securities we are offering. Statements we make in this prospectus
about certain contracts or other documents are not necessarily complete. When we
make such statements, we refer you to the copies of the contracts or documents
that are filed as exhibits to the registration statement, because those
statements are qualified in all respects by reference to those exhibits. The
registration statement, including exhibits and schedules, is on file at the
offices of the SEC and may be inspected without charge.
 
     We file annual, quarterly and special reports, proxy statements and other
information with the SEC. Our SEC filings, including the registration statement,
are available to the public over the Internet at the SEC's web site at
http://www.sec.gov. You also may read and copy any document we file at the SEC's
public reference rooms in Washington, D.C.; New York, New York; and Chicago,
Illinois. Please call the SEC at 1-800-SEC-0330 for further information about
the public reference rooms.
 
     SEC rules allow us to include some of the information required to be in the
registration statement by incorporating that information by reference to
documents we file with them. That means we can disclose important information to
you by referring you to those documents. The information incorporated by
reference is an important part of this prospectus, and information that we file
later with the SEC will automatically update and supersede this information. We
incorporate by reference the documents listed below and any future filings made
with the SEC under Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act until
we sell all of the securities covered by this prospectus:
 
   
     - Annual Report on Form 10-K for the year ended June 30, 1998, as amended
       by Annual Report on Form 10-K/A filed on October 28, 1998, and as further
       amended by Annual Report on Form 10-K/A2 filed on March 31, 1999;
    
 
   
     - Quarterly Report on Form 10-Q for the quarter ended September 30, 1998,
       as amended by Quarterly Report on Form 10-Q/A filed on March 31, 1999;
    
 
   
     - Quarterly Report on Form 10-Q for the quarter ended December 31, 1998, as
       amended by Quarterly Report on Form 10-Q/A filed on March 31, 1999;
    
 
   
     - Current Reports on Form 8-K, filed on September 28, 1998, Form 8-K/A
       filed on October 28, 1998, Form 8-K/A2 filed on March 31, 1999, Form 8-K
       filed on December 21, 1998 and Form 8-K filed on February 3, 1999;
    
 
     - Proxy Statement on Schedule 14A, dated November 17, 1998;
 
   
     - Tender Offer Statements on Schedule 14D-1, filed on August 17, 1998 and
       on Schedule 14D-1/A filed on August 26, 1998, September 2, 1998 and
       September 15, 1998; and
    
 
     - The description of our common stock contained in Form 8-A dated March 27,
       1998, including any amendments or reports that have been filed to update
       the description.
 
     You may request a copy of these filings, which we will provide to you at no
cost, by writing or telephoning us at the following address:
 
    Key Energy Services, Inc.
    Two Tower Center, 20th Floor
    East Brunswick, New Jersey 08816
    (732) 247-4822
 
                                        3
<PAGE>   6
 
                           KEY ENERGY SERVICES, INC.
 
BUSINESS
 
     We are the world's largest onshore oil and gas well service and workover
company based on the number of rigs we own and available industry data. We
provide a complete range of rig-based well maintenance, workover, completion,
recompletion, contract drilling and non-rig ancillary well services to major and
independent oil and gas companies. We believe that we have the most
comprehensive array of services of any participant in the market and have
differentiated ourself from our competitors by our position as a single-source
provider of multiple well-head based services and products across multiple
geographic regions. In addition to maintenance and workover services, we provide
services that include:
 
     - the completion of newly drilled wells;
 
     - the recompletion of existing wells (including horizontal recompletions);
 
     - plugging and abandonment of wells at the ends of their useful lives;
 
     - oilfield fluid and equipment transportation;
 
     - oilfield fluid storage and disposal services;
 
     - fishing and rental tools;
 
     - wireline services;
 
     - air drilling;
 
     - hot oiling; and
 
     - production testing services.
 
     Areas of Operation. Our principal operating regions in the United States
include West Texas and Eastern New Mexico, the Gulf Coast, Oklahoma, Michigan,
the Appalachian Basin, the Rocky Mountains, the Ark La Tex region, the Four
Corners area and California. We also operate in Argentina and have limited
operations in Ontario, Canada.
 
     Operating Assets. We estimate that our share of the domestic onshore well
service rig fleet is approximately 33% based on the number of rigs we own and
available industry data. Our operating assets consist of approximately 1,420
well service and workover rigs, 75 drilling rigs and 1,130 oil field trucks.
 
     Acquisitions. We have pursued an acquisition strategy designed to
consolidate a highly fragmented industry that is primarily comprised of small,
regional well service companies. Over the last three years, we have completed
over 50 acquisitions, for an aggregate consideration of approximately $807
million.
 
   
     As a result of our consolidation strategy, we have realized significant
revenue and EBITDA growth. Our revenues have grown from $44.7 million in fiscal
1995 to $645.4 million on a pro forma basis in fiscal 1998. In the same time
period, EBITDA has grown from approximately $7.5 million to $137.8 million on a
pro forma basis.
    
 
   
RECENT DEVELOPMENTS
    
 
   
     Dawson Acquisition. In September 1998, we purchased Dawson Production
Services, Inc., which was the third largest onshore oil and gas well service and
workover company in the United States
    
 
                                        4
<PAGE>   7
 
   
based on the number of rigs they owned and available industry data. Our share of
the domestic onshore well service rig fleet has increased from approximately 3%
at February 1996 to approximately 33% currently.
    
 
   
     Restructuring Plan. In response to the current industry downturn caused by
historically low oil and gas prices and the resulting slowdown in our business,
on December 7, 1998, we announced a company-wide restructuring plan to reduce
operating costs beyond those achieved through our consolidation efforts. The
plan involved a reduction in the size of our management and on-site work force,
salary reductions of up to 20% for senior management, the combination of
previously separate operating divisions and the elimination of redundant
divisional overhead and facilities. We currently expect approximately $9 million
of annualized cost savings from this plan within the next six months. The
restructuring plan resulted in a one-time pretax charge to earnings of
approximately $6.7 million in the second fiscal quarter ending December 31,
1998. This charge includes severance payments and other termination benefits to
terminated employees, lease commitments related to closed facilities and
environmental studies performed on closed leased yard locations. Approximately
110 employees were terminated, all of which served in either executive or
supervisory positions. We expect to complete the plan by June 30, 1999. The
major components of the restructuring charge and costs incurred to date are as
follows (in thousands):
    
 
   
<TABLE>
<CAPTION>
                                                           COSTS INCURRED
                                          RESTRUCTURING         AS OF           BALANCE AS OF
                                             CHARGE       DECEMBER 31, 1998   DECEMBER 31, 1998
                                          -------------   -----------------   -----------------
<S>                                       <C>             <C>                 <C>
Severance/employee costs................     $6,231             $(834)             $5,397
Lease commitments.......................        433                --                 433
Environmental cleanup...................         35                --                  35
                                             ------             -----              ------
     Total..............................     $6,699             $(834)             $5,865
                                             ======             =====              ======
</TABLE>
    
 
     In addition, we have completed the integration of Dawson into our business,
from which we expect annualized cost savings of approximately $12 million. In
connection with the Dawson acquisition, we anticipate we will incur an
additional, extraordinary pretax charge of approximately $6.1 million in the
third fiscal quarter ending March 31, 1999, expensing debt issuance costs and
fees related to the syndication of our bridge credit facility.
 
   
     Demand for Our Services. Due to weakness of oil and gas prices, demand for
our services declined throughout the second fiscal quarter ending December 31,
1998 and has continued to decline during the third fiscal quarter ending March
31, 1999. By December 31, 1998, oilfield service industry activities were at
depressed levels because many oil companies either reached their 1998 capital
budget targets or reduced spending in light of the current commodity price
environment. If oil and gas prices remain at or above the levels encountered at
the end of calendar 1998, we believe average monthly oilfield services spending
by oil and gas companies in calendar 1999 will be at levels greater than at the
end of calendar 1998 as companies implement their 1999 capital budgets, although
much of their spending could be weighted toward the end of the calendar year.
Should this scenario materialize, our results, including EBITDA and financial
condition could be materially and adversely impacted in our third and fourth
quarters of fiscal 1999.
    
 
   
     Renegotiation of Financial Covenants. In light of market conditions, in
December 1998 we renegotiated certain financial covenants in our credit facility
to levels designed to allow us to remain in compliance for the remainder of
calendar 1999. However, if demand for our services does not increase and our
operating performance does not improve from the levels of November and December
of 1998, we may require further covenant relief or waivers from our lenders
during calendar 1999 to remain in compliance with certain of our financial
covenants.
    
 
                                        5
<PAGE>   8
 
     We believe if demand for our services increases, our aggressive
restructuring plan and other cost saving initiatives have positioned us for
strong performance. No assurance can be given, however, that we will be able to
realize the anticipated cost savings from the restructuring plan or that demand
for our services will return to or exceed historical levels.
 
                           -------------------------
 
     Our principal executive offices are located at Two Tower Center, 20th
Floor, East Brunswick, New Jersey 08816 and our phone number is (732) 247-4822.
 
                       RATIO OF EARNINGS TO FIXED CHARGES
 
     The ratio of our earnings to our fixed charges for each of the periods
indicated is as follows:
 
   
<TABLE>
<CAPTION>
                                   SIX MONTHS ENDED
   FISCAL YEAR ENDED JUNE 30,        DECEMBER 31,
1994   1995   1996   1997   1998         1998
- ----   ----   ----   ----   ----   ----------------
<S>    <C>    <C>    <C>    <C>    <C>
2.65   2.57   2.62   2.52   2.61         0.60
</TABLE>
    
 
     For these ratios, earnings consist of income from continuing operations
before income taxes and fixed charges. Fixed charges consist of interest
expenses, amortization of debt issuance expenses and the portions of rentals and
lease obligations representative of interest factor.
 
                                        6
<PAGE>   9
 
                           FORWARD-LOOKING STATEMENTS
 
     The statements made in this prospectus or in the documents we have
incorporated by reference that are not statements of historical fact are
"forward looking statements" within the meaning of Section 27A of the Securities
Act of 1933 and Section 21E of the Securities Exchange Act of 1934.
Forward-looking statements generally can be identified by the use of
forward-looking terminology such as "may," "will," "expect," "intend,"
"estimate," "anticipate" or "believe," or similar terminology.
 
     The forward-looking statements include discussions about business strategy
and expectations concerning market position, future operations, margins,
profitability, liquidity and capital resources, and statements concerning the
integration into our business of the operations we have acquired. Although we
believe that the expectations in such statements are reasonable, we cannot give
any assurance that those expectations will be correct.
 
     We caution you not to place undue reliance on these forward-looking
statements, which speak only as of the date of this prospectus.
 
     Our operations are subject to several uncertainties, risks and other
influences, many of which are outside our control and any of which could
materially affect our results of operations and ultimately prove the statements
we make to be inaccurate.
 
     Important factors that could cause actual results to differ materially from
our expectations are discussed under the heading "Risk Factors" and elsewhere in
this prospectus.
 
                                  RISK FACTORS
 
     You should consider the following risk factors and other information in
this prospectus before deciding to buy our securities.
 
RISKS ASSOCIATED WITH OIL AND GAS INDUSTRY -- OUR BUSINESS IS DEPENDENT ON
CONDITIONS IN THE OIL AND GAS INDUSTRY, ESPECIALLY THE PRODUCTION EXPENDITURES
OF OIL AND GAS COMPANIES.
 
     The demand for our services is directly influenced by current and
anticipated oil and gas prices, oil and gas production costs, and government
regulation and conditions in the worldwide oil and gas industry, and
particularly on the level of development, exploration and production activity
of, and corresponding spending by, oil and gas companies. Most of our operations
are in the United States where the demand for well servicing and related
services currently is depressed in many markets because of weak oil prices,
which currently are at a twelve-year low. Continued weakness in oil and gas
prices may cause lower day rates and lower utilization of available well service
equipment. In addition, when oil prices are weak, fewer wells are drilled,
resulting in less drilling and less maintenance work for us. Periods of
diminished or weakened demand may continue to occur. In light of these and other
factors relating to the oil and gas industry, our historical operating results
may not be indicative of future performance. In addition, reductions in oil
prices can result in a reduction in the trading prices of our securities, even
if the reduction in oil prices does not affect our business generally.
 
                                        7
<PAGE>   10
 
SUBSTANTIAL LEVERAGE -- OUR SUBSTANTIAL INDEBTEDNESS COULD ADVERSELY AFFECT OUR
FINANCIAL HEALTH AND PREVENT US FROM FULFILLING OUR OBLIGATIONS UNDER OUR
CURRENT INDEBTEDNESS.
 
     We have a significant amount of indebtedness. The following chart shows
certain important credit statistics:
 
<TABLE>
<CAPTION>
                                                               DECEMBER 31, 1998
                                                               -----------------
                                                                  (DOLLARS IN
                                                                  THOUSANDS)
<S>                                                            <C>
Total debt..................................................       $849,381
Stockholders' equity........................................        144,622
Debt to equity ratio........................................         5.87:1
</TABLE>
 
     Our substantial indebtedness could:
 
     - increase our vulnerability to general adverse economic and industry
       conditions;
 
     - limit our ability to fund future working capital, capital expenditures
       and other general corporate requirements;
 
     - require us to dedicate a substantial portion of our cash flow from
       operations to payments on our indebtedness, thereby reducing the
       availability of our cash flow to fund working capital, capital
       expenditures and other general corporate purposes;
 
     - limit our flexibility in planning for, or reacting to, changes in our
       business and the industry in which we operate;
 
     - place us at a competitive disadvantage compared to our competitors that
       have less debt; and
 
     - limit, along with the financial and other restrictive covenants in our
       credit facility, among other things, our ability to borrow additional
       funds. Our failure to comply with these covenants could result in an
       event of default which, if not cured or waived, could have a material
       adverse effect on us.
 
ADDITIONAL BORROWINGS AVAILABLE  -- DESPITE CURRENT INDEBTEDNESS LEVELS, WE AND
OUR SUBSIDIARIES STILL MAY BE ABLE TO INCUR SUBSTANTIALLY MORE DEBT. THIS COULD
FURTHER INCREASE THE RISKS DESCRIBED ABOVE.
 
     We and our subsidiaries may be able to incur substantial additional
indebtedness in the future. Our credit facility currently permits additional
borrowings of up to approximately $30 million. If new debt is added to our and
our subsidiaries' current debt levels, the related risks that we and they now
face could intensify.
 
ABILITY TO SERVICE DEBT -- TO SERVICE OUR INDEBTEDNESS, WE WILL REQUIRE A
SIGNIFICANT AMOUNT OF CASH. OUR ABILITY TO GENERATE CASH DEPENDS ON MANY FACTORS
BEYOND OUR CONTROL.
 
     Our ability to make payments on and to refinance our indebtedness, and to
fund planned capital expenditures will depend on our ability to generate cash in
the future. This, to a certain extent, is subject to general economic,
financial, competitive, legislative, regulatory and other factors that are
beyond our control.
 
     We cannot assure you that our business will generate sufficient cash flow
from operations to service our outstanding debt, that currently anticipated cost
savings and operating improvements will be realized or that future borrowings
will be available to us under our credit facility in an amount
 
                                        8
<PAGE>   11
 
sufficient to enable us to pay our indebtedness or to fund our other liquidity
needs. We may need to refinance all or a portion of our indebtedness on or
before maturity. We cannot assure you that we will be able to refinance any of
our indebtedness, including our credit facility, on commercially reasonable
terms or at all.
 
RISKS ASSOCIATED WITH INTEGRATION OF ACQUISITIONS -- WE HAVE PURSUED, AND INTEND
TO CONTINUE TO PURSUE, ACQUISITIONS. OUR BUSINESS MAY BE ADVERSELY AFFECTED IF
WE CANNOT EFFECTIVELY INTEGRATE ACQUIRED OPERATIONS.
 
     One of our business strategies has been to acquire operations and assets
that are complementary to our existing businesses. In the last twelve months,
our acquisitions have doubled the number of well service rigs we own. Our
revenues have grown from $44.7 million in fiscal 1995 to $645.6 million on a pro
forma basis in fiscal 1998, largely as a result of acquisitions. Acquiring
operations and assets involves financial, operational and legal risks. These
risks include the difficulty of assimilating operations, systems and personnel
of the acquired businesses and maintaining uniform standards, controls,
procedures and policies. Any future acquisitions would likely result in an
increase in expenses. In addition, competition from other potential buyers could
cause us to pay a higher price than we otherwise might have to pay and reduce
our acquisition opportunities. Moreover, our past success in making acquisitions
and in integrating acquired businesses does not necessarily mean we will be
successful in making acquisitions and integrating businesses in the future.
 
OPERATING RISKS; INSURANCE -- OUR BUSINESS COULD BE ADVERSELY AFFECTED BY
CERTAIN OPERATING RISKS, AND OUR INSURANCE MAY NOT BE ADEQUATE TO COVER ALL
LOSSES OR LIABILITIES WE MIGHT INCUR IN OUR OPERATIONS.
 
     Our operations are subject to many hazards. These hazards include
explosions, blow-outs, reservoir damage, loss of well control, cratering, fires
and damage to the environment. In addition, we are subject to seasonal risks
caused by adverse weather conditions such as rain and flooding, high winds and
severe winter storms. Operations in northern regions are subject to limitations
on transporting equipment during the spring thaw. These hazards and risks could
cause the suspension of operations, damage to or destruction of our equipment
and the property of others and injury or death to field personnel. Like most
companies in our industry, we have experienced some of these incidents in our
operations. The frequency and severity of these incidents affect our operating
costs and our relationships with customers, employees and regulators. Any
significant increase in the frequency or severity of such incidents, or the
general level of compensation awards, could affect our ability to obtain
insurance and could have a material adverse effect on our business. We have
insurance, customary in the industry, to protect against these liabilities.
However, this insurance is capped at $50 million per incident and does not
provide coverage for all liabilities. Our insurance may not be adequate to cover
all losses or liabilities that we might incur in our operations. To the extent
our liability for any particular loss or liability exceeds the $50 million cap,
we would incur costs for the excess. Moreover, we may not be able to maintain
insurance at adequate levels or at reasonable rates and particular types of
coverage may not be available in the future.
 
COMPETITION
 
     We experience intense competition in our markets. Certain of our
competitors have greater financial and other resources than we do.
 
                                        9
<PAGE>   12
 
POTENTIAL LABOR SHORTAGE -- WE HISTORICALLY HAVE EXPERIENCED A HIGH EMPLOYEE
TURNOVER RATE. ANY DIFFICULTY WE EXPERIENCE REPLACING OR ADDING WORKERS COULD
ADVERSELY AFFECT OUR BUSINESS.
 
     We historically have experienced an annual employee turnover rate of over
50%. The high turnover rate is caused by the nature of the work, which is
physically demanding and performed outdoors. As a result, workers may choose to
pursue employment in fields that offer a more desirable work environment at wage
rates that are competitive with ours. Although we currently are downsizing our
workforce, we cannot assure that at times of high demand we will be able to
recruit and train workers. Potential inability or lack of desire by workers to
commute to our facilities and job sites and competition for workers from other
industries are factors that could affect our ability to attract workers. We
believe that our wage rates are competitive with the wage rates of our
competitors and other potential employers. A significant increase in the wages
other employers pay could result in a reduction in our workforce, increases in
our wage rates, or both. Either of these events could diminish our profitability
and growth potential.
 
GOVERNMENTAL REGULATION AND ENVIRONMENTAL MATTERS -- WE MAY BECOME LIABLE FOR
PENALTIES UNDER A VARIETY OF ENVIRONMENTAL LAWS AND GOVERNMENT REGULATIONS EVEN
IF WE DO NOT CAUSE ANY ENVIRONMENTAL PROBLEMS. CERTAIN CHANGES IN ENVIRONMENTAL
LAWS AND GOVERNMENT REGULATIONS COULD ADVERSELY AFFECT OUR BUSINESS.
 
     Our operations are subject to foreign, federal, state and local laws and
regulations relating to protection of the environment, natural resources, health
and safety, waste management and transportation of waste and other materials
including hydrocarbons and chemicals. Our fluid services include injection
operations that pose certain risks of environmental liability. Although we
monitor the injection process, the possibility exists of leakage to surface or
subsurface soils or groundwater, which could result in cancellation of well
operations, fines and penalties, expenditures for remediation, and liability for
property damages and personal injuries. Sanctions for noncompliance with
applicable environmental laws and regulations also may include administrative,
civil and criminal penalties, revocation of permits and corrective action
orders. In addition, our operations may be subject to potential liability for
environmental clean up at currently or previously owned or operated properties
or off-site locations where we sent, disposed of, or arranged for disposal of
hazardous materials. A party can be liable for environmental damage without
regard to its negligence or fault. Therefore, we could incur liability based on
the conduct of others, or for acts that were lawful at the time we performed
them. Environmental laws have become more stringent over the years. The
modification or interpretation of existing laws or regulations, the adoption of
new laws or regulations or the more vigorous enforcement of environmental laws
or regulations could curtail exploratory or development drilling for oil and gas
and could limit well servicing opportunities.
 
FOREIGN INVESTMENTS -- OUR FOREIGN BUSINESS EXPOSES US TO RISKS RELATING TO
INCREASED REGULATION AND POLITICAL OR ECONOMIC INSTABILITY WITHIN CERTAIN
FOREIGN COUNTRIES.
 
     We have investments and may make additional investments in Argentina and
Canada. We may make other investments outside the United States. Foreign
investments are subject to risks relating to the political, social and economic
structures of those countries. Risks may include fluctuations in currency
valuation, expropriation, confiscatory taxation and nationalization, currency
conversion restrictions, increased regulation and approval requirements and
governmental policies limiting returns to foreign investors. In fiscal 1998, our
foreign operations accounted for less than 10% of our revenues.
 
                                       10
<PAGE>   13
 
DEPENDENCE ON KEY PERSONNEL -- OUR BUSINESS MAY BE ADVERSELY AFFECTED IF WE LOSE
OUR EXECUTIVE OFFICERS.
 
     We depend upon the performance of our executive officers. We have entered
into employment agreements with these executive officers that contain
non-compete provisions. Notwithstanding these agreements, we may not be able to
retain our executive officers and may not be able to enforce the non-compete
provisions in the employment agreements. We maintain key person life insurance
on the lives of certain of our offices, including our chief executive officer.
This insurance does not mean that the death or disability of one or more of them
would not adversely affect our operations.
 
YEAR 2000 ISSUE -- THE YEAR 2000 PROBLEM MAY ADVERSELY AFFECT OUR BUSINESS IF
OUR SUPPLIERS AND CUSTOMERS DO NOT ADEQUATELY ADDRESS THEIR YEAR 2000 CONCERNS.
 
     We currently are implementing a new integrated management information
system along with updated hardware that will replace most of our current
systems. The new management information system will be year 2000 compliant for
our systems as well as for those of our past and future acquisitions.
Implementation began in July 1998 and is scheduled to be substantially completed
by June 1999. Our new management information systems do not cover our Argentine
operations, but we have established a separate system, which is year 2000
compliant, that will be implemented in late 1999.
 
     We have not yet developed a plan to formally communicate with our
significant suppliers and customers to determine if those parties have
appropriate plans to remedy year 2000 issues when their systems interface with
our systems or otherwise have an impact on our operations. We do not anticipate
that this will have a material impact on our operations. However, there can be
no assurance that the systems of other companies on which we rely will be timely
converted, or that failure to successfully convert by another company, or
conversion that is incompatible with our systems, would not have an impact on
our operations. We currently do not have a contingency plan to cover any
unforeseen problems encountered that relate to the year 2000, but we intend to
produce one before the end of the current fiscal year.
 
     The cost of the new management information system is not anticipated to
have a material impact on our business. Although we are not aware of any
material operational issues or costs associated with preparing our internal
systems for the year 2000, there can be no assurance that there will not be a
delay in, or increased costs associated with, the implementation of the
necessary systems and changes to address the year 2000 issues.
 
     If we are unable to adequately address the year 2000 issue in a timely
manner, the worst case scenario would be that we could suffer significant
computer downtime, and billings, payments and collections would revert to manual
accounting records. In addition, the inability of our principal suppliers and
major customers to be year 2000 compliant could result in delays in product
deliveries from those suppliers and collection of accounts receivable.
 
SHARES ELIGIBLE FOR FUTURE SALE -- THE MARKET PRICE OF OUR COMMON STOCK COULD BE
ADVERSELY AFFECTED BY SALES OF SUBSTANTIAL AMOUNTS OF COMMON STOCK IN THE PUBLIC
MARKET OR THE PERCEPTION THAT SUCH SALES COULD OCCUR.
 
     As of March 1, 1999, we had 18,293,180 shares of common stock outstanding.
As of such date, approximately 10.3 million shares of common stock were issuable
upon the exercise of outstanding options, warrants and convertible securities.
The market price of the common stock could be
 
                                       11
<PAGE>   14
 
adversely affected by sales of substantial amounts of common stock in the public
market or the perception that such sales could occur.
 
VOLATILITY -- THE TRADING PRICE OF OUR SECURITIES COULD BE SUBJECT TO
SIGNIFICANT FLUCTUATIONS.
 
     The trading price of our common stock has been volatile. Factors such as
announcements of fluctuations in our or our competitors' operating results and
market conditions for oil and gas related stocks in general could have a
significant impact on the future trading prices of our securities. In
particular, the trading price of the common stock of many oil and gas companies
has experienced extreme price and volume fluctuations, which have at times been
unrelated to the operating performance of such companies whose stocks were
affected. In addition, the trading prices of our securities could be subject to
significant fluctuations in response to variations in our prospects and
operating results, which may in turn be affected by weakness in oil prices,
changes in interest rates and other factors. There can be no assurance that
these factors will not have an adverse effect on the trading prices of our
securities.
 
                                USE OF PROCEEDS
 
     Except as otherwise described in any prospectus supplement, the net
proceeds from the sale of securities will be used for general corporate
purposes, which may include refinancings of indebtedness, working capital,
capital expenditures, acquisitions and repurchases and redemptions of
securities.
 
                                       12
<PAGE>   15
 
                              PLAN OF DISTRIBUTION
 
     The specific terms of the particular securities to be issued will be set
forth in a prospectus supplement that will be delivered together with this
prospectus. In the case of common stock, a prospectus supplement would include
the number of shares to be issued. Terms set forth for the warrants would
include the number and terms of the warrants and the number of shares of common
stock issuable upon their exercise, including, the exercise price, the terms of
the offering, sale, duration and detachability of the warrants. In the case of
debt securities, the prospectus supplement would include, where applicable:
 
     - aggregate principal amount;
 
     - ranking as senior or subordinated debt securities;
 
     - maturity;
 
     - conversion terms;
 
     - rate or rates (or method of determination);
 
     - time or times for the payment of interest, if any;
 
     - any exchangeability;
 
     - any terms for optional or mandatory redemption or repurchase, or payment
       of additional amounts or any sinking fund provisions;
 
     - whether or not such debt securities are guaranteed by our subsidiaries;
       and
 
     - any other specific terms of such debt securities.
 
     In the case of preferred stock, the information that will be set forth in a
prospectus supplement, will include:
 
     - specific designation;
 
     - number of shares;
 
     - liquidation value;
 
     - dividend rights;
 
     - liquidation and redemption rights;
 
     - voting rights;
 
     - other rights, including conversion or exchange rights, if any; and
 
     - any other specific terms.
 
     We may sell the securities through underwriters, agents or dealers or
directly to purchasers. A prospectus supplement will set forth the terms of each
specific offering, including the name or names of any underwriters or agents,
the purchase price of the securities and the proceeds to us from such sales, any
delayed delivery arrangements, any underwriting discounts and other items
constituting underwriters' compensation, any initial public offering price and
any discounts or concessions allowed or reallowed or paid to dealers. Any
initial public offering price and any discounts or concessions allowed or
reallowed or paid to dealers may be changed from time to time.
 
     If underwriters are used in the sale, the securities will be acquired by
the underwriters for their own account and may be resold from time to time in
one or more transactions, including negotiated transactions, at a fixed public
offering price or at varying prices determined at the time of sale. The
securities may be offered to the public either through underwriting syndicates
represented by one or
 
                                       13
<PAGE>   16
 
more managing underwriters or directly by one or more firms acting as
underwriters. The underwriter or underwriters with respect to a particular
underwritten offering and, if an underwriting syndicate is used, the managing
underwriter or underwriters will be set forth on the cover of such prospectus
supplement. Unless otherwise set forth in the prospectus supplement, the
underwriters will be obligated to purchase all the securities if any are
purchased.
 
     During and after an offering through underwriters, the underwriters may
purchase and sell the securities in the open market. These transactions may
include overallotment and stabilizing transactions and purchases to cover
syndicate short positions created in connection with the offering. The
underwriters also may impose a penalty bid, under which selling concessions
allowed to syndicate members or other broker-dealers for the securities they
sell for their account may be reclaimed by the syndicate if the syndicate
repurchases the securities in stabilizing or covering transactions. These
activities may stabilize, maintain or otherwise affect the market price of the
securities then offered, which may be higher than the price that might otherwise
prevail in the open market, and, if commenced, may be discontinued at any time.
 
     We may sell the securities directly or through agents we designate from
time to time. Any agent involved in the offer or sale of the securities covered
by this prospectus will be named, and any commissions payable by us to an agent
will be set forth, in a prospectus supplement relating thereto. Unless otherwise
indicated in a prospectus supplement, any such agent will be acting on a best
efforts basis for the period of its appointment.
 
     If dealers are used in any of the sales of securities covered by this
prospectus, we will sell those securities to dealers as principals. The dealers
may then resell the securities to the public at varying prices the dealers
determine at the time of resale. The names of the dealers and the terms of the
transactions will be set forth in a prospectus supplement.
 
     We may sell the securities directly to institutional investors or others
who may be deemed to be underwriters within the meaning of the Securities Act
with respect to any sale thereof. The terms of any such sales will be described
in a prospectus supplement.
 
     If so indicated in a prospectus supplement, we will authorize agents,
underwriters or dealers to solicit offers from certain types of institutions to
purchase securities from us at the public offering price set forth in the
prospectus supplement pursuant to delayed delivery contracts providing for
payment and delivery on a specified date in the future. These contracts will be
subject only to those conditions set forth in the prospectus supplement, and the
prospectus supplement will set forth the commission payable for solicitation of
such contracts.
 
     Agents, dealers and underwriters may be entitled under agreements entered
into with us to indemnification by us against certain civil liabilities,
including liabilities under the Securities Act, or to contribution with respect
to payments which such agents, dealers or underwriters may be required to make
in respect thereof. Agents, dealers and underwriters may be customers of, engage
in transactions with, or perform services on our behalf.
 
   
     Any debt securities, preferred stock or warrants may, but are not expected
to be, listed on any securities exchange.
    
 
                                       14
<PAGE>   17
 
                         DESCRIPTION OF DEBT SECURITIES
 
     The debt securities will be:
 
   
     - our direct unsecured or secured general obligations;
    
 
     - either senior debt securities or subordinated debt securities; and
 
     - will be issued under one or more separate indentures.
 
     Senior debt securities will be issued under a senior indenture and
subordinated debt securities will be issued under a subordinated indenture.
Senior debt securities and subordinated debt securities may be guaranteed by
certain of our subsidiaries. The debt securities issued may be convertible into
shares of our common stock.
 
     We have summarized selected provisions of the indentures below. The summary
is not complete. The forms of the indentures have been filed as exhibits to the
registration statement, and you should read the indentures for provisions that
may be important to you. In the summary, we have included references to section
numbers of the indentures so that you can easily locate those provisions.
Capitalized terms used in this summary have the meanings used in the indentures.
 
GENERAL
 
     - The Indentures do not limit the aggregate principal amount of debt
       securities that can be issued thereunder. (Section 301)
 
     - Debt securities may be issued in one or more series, each in an aggregate
       principal amount authorized by the Company before issuance, and may be in
       any currency or currency unit that we may designate. (Section 301)
 
     - Debt securities of a series may be issued in registered or global form.
       (Sections 201 and 203)
 
     - The Indentures do not limit the amount of other unsecured indebtedness or
       securities that we can issue.
 
     - The senior debt securities will rank equally with all of our other senior
       debt.
 
     - The subordinated debt securities will have a junior position to all of
       our senior debt. (Section 1301)
 
     We are a holding company that conducts all operations through our
subsidiaries. Holders of debt securities generally will have a junior position
to claims of creditors of our subsidiaries including trade creditors, debt
holders, secured creditors, taxing authorities, guaranty holders and any
preferred stockholders. At December 31, 1998, we did not have any outstanding
preferred stock and we and our subsidiaries had $849.4 million of outstanding
debt.
 
     A prospectus supplement and a supplemental indenture relating to any series
of debt securities being offered will include specific terms relating to the
offering. These terms will include some or all of the following:
 
     - the title and type of debt securities being offered;
 
     - the total principal amount of debt securities being offered;
 
     - the dates on which the principal of, and premium, if any, on the offered
       debt securities is payable;
 
     - the interest rate;
 
     - the date from which interest will accrue;
 
                                       15
<PAGE>   18
 
     - the interest payment dates;
 
     - any optional redemption periods;
 
     - any sinking fund or other provisions that would obligate us to repurchase
       or otherwise redeem the debt securities;
 
     - whether the debt securities will be convertible into shares of common
       stock or exchangeable for other of our securities, and if so, the terms
       of conversion or exchange;
 
     - events causing acceleration of maturity;
 
     - any provisions granting special rights to holders when the specified
       event occurs;
 
     - any changes to or additional events of default or covenants;
 
     - any special tax implications of the debt securities; and
 
     - any other terms of the debt securities. (Section 301)
 
GUARANTEES
 
     - Debt securities may be guaranteed by some, but not all, of our
       subsidiaries.
 
     - The subsidiaries that will guarantee any guaranteed debt securities are
       identified in the senior indenture and subordinated indenture relating
       thereto, each of which is an exhibit to this registration statement.
 
     - The guarantees will be general obligations of each guarantor.
 
     - The guarantors will jointly and severally guarantee any of our guaranteed
       debt securities.
 
     - Not all of our subsidiaries will be required to guarantee any guaranteed
       debt securities. In the event of a bankruptcy, liquidation or
       reorganization of any of the non-guarantor subsidiaries, the
       non-guarantor subsidiaries will pay the holders of their debt and their
       trade creditors before they will be able to distribute any of their
       assets to us. Although not all of our subsidiaries will guarantee any
       guaranteed debt securities, the guarantor subsidiaries generated over 90%
       of our consolidated revenues in the 12-month period ended December 31,
       1998.
 
     - The obligations of each guarantor under any subsidiary guarantee will be
       limited as necessary to prevent that subsidiary guarantee from
       constituting a fraudulent conveyance under applicable law.
 
     - A subsidiary guarantor may not consolidate with or merge into another
       company unless the surviving company assumes all of the obligations of
       that guarantor subsidiary pursuant to a supplemental indenture
       satisfactory to the trustee, and only if immediately after giving effect
       to the transaction, no default or event of default would exist.
 
DENOMINATIONS
 
     The debt securities will be issued in registered form of $1,000 each or
multiples thereof. (Section 302)
 
SUBORDINATION
 
     Under the subordinated indenture, payment of the principal, interest and
any premium on the subordinated debt securities generally will be subordinated
and junior in right of payment to the prior
 
                                       16
<PAGE>   19
 
payment in full of all senior debt. The subordinated indenture provides that no
payment of principal, interest or any premium on the subordinated debt
securities may be made in the event:
 
     - of any insolvency, bankruptcy or similar proceeding involving us or our
       property; or
 
     - we fail to pay the principal, interest, any premium or any other amounts
       on any senior debt when due. (Sections 1301 and 1303)
 
     The subordinated indenture will not limit the amount of senior debt that we
may incur.
 
     Senior debt is defined to include all notes or other unsecured evidences of
indebtedness including our guarantees for money we borrowed, not expressed to be
subordinate or junior in right of payment to any of our other indebtedness.
(Section 101)
 
EVENTS OF DEFAULT
 
     The following are Events of Default under each Indenture:
 
     - failure to pay principal or any premium on any debt security when due;
 
     - failure to pay any interest on any debt security when due, continued for
       30 days;
 
     - failure to deposit any mandatory sinking fund payment when due, continued
       for 30 days;
 
     - failure to perform any other covenant in the Indenture that continues for
       90 days after written notice;
 
     - certain events of bankruptcy, insolvency or reorganization; and
 
     - any other Event of Default as may be specified with respect to debt
       securities of such series. (Section 501)
 
     An Event of Default for a particular series of debt securities does not
necessarily constitute an Event of Default for any other series of debt
securities. The Trustee may withhold notice to the holders of debt securities of
any default (except in the payment of principal or interest) if the Trustee
considers withholding of notice to be in the best interest of the holders.
(Section 602)
 
                                       17
<PAGE>   20
 
ACCELERATION OF DEBT UPON AN EVENT OF DEFAULT
 
     If an Event of Default occurs:
 
     - either the Trustee or the holders of at least 25% in principal amount of
       the outstanding debt securities may declare the principal amount of all
       the debt securities of the applicable series to be due and payable
       immediately. (Section 502)
 
     - If this happens, subject to certain conditions, the holders of a majority
       in principal amount of the outstanding debt securities of such series can
       void the declaration. These conditions include the requirement that we
       have paid or deposited with the Trustee a sum sufficient to pay all
       overdue principal and interest payments on the series of debt securities
       subject to the default. (Section 502)
 
     If an Event of Default occurs due to certain events of bankruptcy,
insolvency or reorganization, the principal amount of the outstanding debt
securities of all series will become immediately due and payable without any
declaration or other act on the part of either Trustee or any holder. (Section
502)
 
     Depending on the terms of our indebtedness, an Event of Default under an
Indenture may cause a cross default on such other indebtedness.
 
DUTIES OF TRUSTEE
 
     Other than its duties in the case of default, the Trustee is not obligated
to exercise any of its rights or powers under any Indenture at the request,
order or direction of any holders unless the holders offer the Trustee
reasonable indemnity. (Section 603)
 
     If the holders provide reasonable indemnification, the holders of a
majority of principal amount of any series of debt securities may direct the
time, method and place of conducting any proceeding or any remedy available to
the Trustee, or exercising any power conferred upon the Trustee for any series
of debt securities. (Section 512)
 
COVENANTS
 
     Under the Indentures, we will:
 
     - pay the principal, interest and any premium on the debt securities when
       due;
 
     - maintain a place of payment;
 
     - deliver a report to the Trustee at the end of each fiscal year reviewing
       our obligations under the Indentures; and
 
     - deposit sufficient funds with any payment agent on or before the due date
       for any principal, interest or any premium. (Sections 1001, 1002, 1003
       and 1005)
 
MODIFICATION OF INDENTURES
 
     Under each Indenture, all rights and obligations of the holders may be
modified with the consent of the holders of a majority in aggregate principal
amount of the outstanding debt securities of each series effected by the
modification. No modification of the principal or interest payment terms and no
modification reducing the percentage required for modifications is effective
against any holder without its consent. (Sections 901 and 902)
 
                                       18
<PAGE>   21
 
CONSOLIDATION, MERGER AND SALE OF ASSETS
 
     Each Indenture generally permits a consolidation or merger between us and
another company. They also permit the sale by us of all or substantially all of
our property and assets. If this happens, the remaining or acquiring company
will assume all of our responsibilities and liabilities under the Indentures,
including the payment of all amounts due on the debt securities and performance
of the covenants in the Indentures. (Sections 801 and 802)
 
     We will only consolidate or merge with or into any other company or sell
all or substantially all of our assets according to the terms and conditions of
the Indentures. The remaining or acquiring company will be substituted for us in
the Indentures with the same effect as if it had been an original party to the
Indenture. Thereafter, the successor company may exercise our rights and powers
under any Indenture, in our name or in its own name. Any act or proceeding
required or permitted to be done by our board of directors or any of our
officers may be done by the board or officers of the successor company. If we
sell all or substantially all of our assets, we shall be released from all our
liabilities and obligations under any Indenture and under the debt securities.
(Sections 801 and 802)
 
DISCHARGE AND DEFEASANCE
 
     We and the subsidiary guarantors, if any, will be discharged from our
obligations under the debt securities of any series if we deposit with the
Trustee enough cash or government securities to pay the principal, interest, any
premium and any other sums due to the stated maturity date or redemption date of
the debt securities of the series. If this happens, the holders of the debt
securities of the series will not be entitled to the benefits of the Indenture
except for registration, transfer and exchange of debt securities and
replacement of lost, stolen or mutilated debt securities. (Section 401)
 
     Under federal income tax law as of the date of this prospectus, a discharge
may be treated as an exchange of the related debt securities. Each holder might
be required to recognize gain or loss equal to the difference between the
holder's cost or other tax basis for the debt securities and the value of the
holder's interest in the trust. Holders might be required to include as income a
different amount than would be includable without the discharge. Prospective
investors are urged to consult their own tax advisers as to the consequences of
a discharge, including the applicability and effect of tax laws other than the
federal income tax law.
 
PAYMENT AND PAYING AGENTS
 
     Principal, interest and premium on fully registered securities will be paid
at designated places. Payment will be made by check mailed to the person in
whose name the debt securities are registered on the day specified in the
Indentures or any prospectus supplement. Payments in other forms will be paid at
a place designated by us and specified in a prospectus supplement. (Section 307)
 
     Fully registered securities may be transferred or exchanged at the
corporate trust office of the Trustee or at any other office or agency
maintained by us for such purposes without the payment of any service charge
except for any tax or governmental charge. (Section 1002)
 
GLOBAL SECURITIES
 
     The Debt Securities of a series may be issued in the form of one or more
global certificates that will be deposited with a depositary identified in a
prospectus supplement. Unless otherwise stated in any prospectus supplement, The
Depository Trust Company, New York, New York ("DTC") will act
 
                                       19
<PAGE>   22
 
as depositary. Beneficial interests in global certificates will be shown on, and
transfers of global certificates will be effected only through, records
maintained by DTC and its participants.
 
                          DESCRIPTION OF CAPITAL STOCK
 
     As of March 1, 1999, our authorized capital stock was 100,000,000 shares,
which may be issued as either shares of preferred stock or common stock. As of
that date, we had 18,293,180 shares of common stock outstanding and no shares of
preferred stock outstanding.
 
COMMON STOCK
 
     Listing. Our common stock is listed on the New York Stock Exchange under
the symbol "KEG." Any additional common stock we issue will also be listed on
the NYSE.
 
     Dividends. Common stockholders may receive dividends when declared by the
board of directors. Dividends may be paid in cash, stock or another form.
However, certain of our existing debt agreements contain covenants that
currently restrict us from paying dividends. Additionally, in certain cases,
common stockholders may not receive dividends until we have satisfied our
obligations to any preferred stockholders.
 
     Fully Paid. All outstanding shares of common stock are fully paid and
non-assessable. Any additional common stock we issue will also be fully paid and
non-assessable.
 
     Voting Rights. Each share of common stock is entitled to one vote in the
election of directors and other matters. Common stockholders are not entitled to
preemptive or cumulative voting rights.
 
     Other Rights. We will notify common stockholders of any stockholders'
meetings according to applicable law. If we liquidate, dissolve or wind-up our
business, either voluntarily or not, common stockholders will share equally in
the assets remaining after we pay our creditors and preferred stockholders.
 
     Transfer Agent and Registrar. Our transfer agent and registrar is American
Stock Transfer & Trust Company, New York, New York.
 
PREFERRED STOCK
 
     The following description of the terms of the preferred stock sets forth
certain general terms and provisions of the preferred stock we may offer. If we
offer preferred stock, the specific designations and rights will be described in
a prospectus supplement and a description will be filed with the SEC.
 
     Our board of directors can, without approval of our stockholders, issue one
or more series of preferred stock. The board can also determine the number of
shares of each series and the rights, preferences and limitations of each series
including the dividend rights, voting rights, conversion rights, redemption
rights and any liquidation preferences of any series of preferred stock, the
number of shares constituting each series and the terms and conditions of issue.
In some cases, the issuance of preferred stock could delay a change in control
of the Company and make it harder to remove present management. Under certain
circumstances, preferred stock could also restrict dividend payments to holders
of our common stock.
 
     The transfer agent, registrar, and dividend disbursement agent for a series
of preferred stock will be named in a prospectus supplement. The registrar for
shares of preferred stock will send notices to
 
                                       20
<PAGE>   23
 
stockholders of any meetings at which holders of the preferred stock have the
right to elect directors or to vote on any other matter.
 
                            DESCRIPTION OF WARRANTS
 
     We may issue warrants, including warrants to purchase debt securities,
preferred stock, common stock or other securities. We may issue warrants
independently or together with other securities that may be attached to or
separate from the warrants. The terms of warrants will be set forth in a
prospectus supplement which will describe, among other things, the designation
of the warrants, the securities into which the warrants are exercisable, the
exercise price, the aggregate number of warrants to be issued, the principal
amount of securities purchasable upon exercise of each warrant, the price or
prices at which each warrant will be issued, the procedures for exercising the
warrants, the date upon which the exercise of warrants will commence, and the
expiration date, and any other material terms of the warrants.
 
                                 LEGAL MATTERS
 
     Certain legal matters relating to the validity of the common stock,
preferred stock, debt securities and warrants will be passed upon by Porter &
Hedges, L.L.P., Houston, Texas.
 
                                    EXPERTS
 
     The consolidated financial statements of the Company and subsidiaries as of
June 30, 1998 and 1997, and for each of the years in the three-year period ended
June 30, 1998, have been incorporated by reference in this prospectus in
reliance upon the report of KPMG LLP, independent certified public accountants,
incorporated by reference herein, and upon the authority of said firm as experts
in accounting and auditing.
 
     The consolidated financial statements of Dawson Production Services, Inc.
and subsidiaries as of March 31, 1998 and 1997, and for each of the years in the
three-year period ended March 31, 1998, have been incorporated by reference in
this prospectus in reliance upon the report of KPMG LLP, independent certified
public accountants, incorporated by reference herein, and upon the authority of
said firm as experts in accounting and auditing.
 
                                       21
<PAGE>   24
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
   
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
    
 
     (a) Exhibits
 
   
<TABLE>
<CAPTION>
      EXHIBIT NO.                                DESCRIPTION
      -----------                                -----------
<C>                      <S>
          *4.1           -- Form of Senior Indenture
          *4.2           -- Form of Subordinated Indenture
          *4.3           -- Form of Senior Indenture with Guarantors
          *4.4           -- Form of Subordinated Indenture with Guarantors
           5.1           -- Opinion of Porter & Hedges, L.L.P.
          12.1           -- Statement Regarding Computation of Ratios of Earnings to
                            Fixed Charges
          23.1           -- Consent of Porter & Hedges, L.L.P. (included in Exhibit
                            5.1)
         *23.2           -- Consent of KPMG LLP
         *23.3           -- Consent of KPMG LLP
          24.1           -- Power of Attorney (included on signature page)
          24.2           -- Power of Attorney for Guarantors (included on signature
                            page)
         +25.1           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Senior Debt
         +25.2           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Subordinated Debt
         +25.3           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Senior Debt with
                            Guarantors
         +25.4           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Subordinated Debt with
                            Guarantors
</TABLE>
    
 
- -------------------------
 
   
* Filed herewith.
    
 
   
+ To be filed under cover of Form 8-K.
    
   
    
 
                                      II-1
<PAGE>   25
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended, Key
Energy Services, Inc. certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-3 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of East Brunswick, State of New Jersey on March 29,
1999.
    
 
                                            KEY ENERGY SERVICES, INC.
 
                                            By:     /s/ FRANCIS D. JOHN
                                              ----------------------------------
                                                       Francis D. John,
                                                President and Chief Executive
                                                            Officer
 
   
<TABLE>
<CAPTION>
                   SIGNATURES                                     TITLE                       DATE
                   ----------                                     -----                       ----
<C>                                                 <S>                                  <C>
 
                       *                            President, Chief Executive           March 29, 1999
- ------------------------------------------------    Officer, and Director (Principal
                Francis D. John                     Executive Officer)
 
                       *                            Director                             March 29, 1999
- ------------------------------------------------
                William D. Manly
 
                       *                            Director                             March 29, 1999
- ------------------------------------------------
                Morton Wolkowitz
 
                       *                            Director                             March 29, 1999
- ------------------------------------------------
               David J. Breazzano
 
                       *                            Director                             March 29, 1999
- ------------------------------------------------
                Kevin P. Collins
 
                       *                            Director                             March 29, 1999
- ------------------------------------------------
               W. Phillip Marcum
 
                       *                            Executive Vice President, Chief      March 29, 1999
- ------------------------------------------------    Financial Officer and Treasurer
              Stephen E. McGregor                   (Principal Financial Officer)
</TABLE>
    
<PAGE>   26
 
   
<TABLE>
<CAPTION>
                   SIGNATURES                                     TITLE                       DATE
                   ----------                                     -----                       ----
<C>                                                 <S>                                  <C>
 
                       *                            Vice President of Financial          March 29, 1999
- ------------------------------------------------    Operations (Principal Accounting
                 Danny R. Evatt                     Officer)
</TABLE>
    
 
                        *By: /s/ JACK D. LOFTIS, JR.
                    -------------------------------------
   
                              Jack D. Loftis, Jr.
    
                                Attorney-in-Fact
<PAGE>   27
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Guarantors, as listed below, certify that they have reasonable grounds to
believe that they meet all of the requirements for filing on Form S-3 and have
duly caused this Registration Statement to be signed on their behalf of the
undersigned, thereunto duly authorized, in the City of East Brunswick, State of
New Jersey on March 29, 1999.
    
 
   
                                          RAM OIL WELL SERVICE, INC., ROWLAND
                                          TRUCKING CO., INC. YALE E. KEY, INC.,
                                          JETER SERVICE CO., WELLTECH MID-
                                          CONTINENT, INC., INDUSTRIAL OILFIELD
                                          SUPPLY, INC., JETER TRANSPORTATION,
                                          INC., JETER WELL SERVICE, INC.,
                                          WELL-CO OIL SERVICE, INC., LANDMARK
                                          FISHING & RENTAL, INC., PATRICK WELL
                                          SERVICE, INC., KEY FOUR CORNERS, INC.,
                                          DAWSON PRODUCTION MANAGEMENT, INC.,
                                          KEY ENERGY SERVICES -- SOUTH TEXAS,
                                          INC., KEY ENERGY
                                          SERVICES -- CALIFORNIA, INC., DUNBAR
                                          WELL SERVICE, INC., MOSLEY WELL
                                          SERVICE, INC., FRONTIER WELL SERVICE,
                                          INC., UPDIKE BROTHERS, INC., KEY ROCKY
                                          MOUNTAIN, INC., WATSON OILFIELD
                                          SERVICE & SUPPLY, INC., J.W. GIBSON
                                          WELL SERVICE COMPANY, BROOKS WELL
                                          SERVICING, INC., KEY ENERGY DRILLING,
                                          INC., WELLTECH EASTERN, INC., KALKASKA
                                          OILFIELD SERVICES, INC., ODESSA
                                          EXPLORATION INCORPORATED, DAWSON
                                          PRODUCTION TAYLOR, INC. AND DAWSON
                                          PRODUCTION ACQUISITION CORP.
    
 
                                          By:    /s/ STEPHEN E. MCGREGOR
                                            ------------------------------------
                                            Stephen E. McGregor, Vice President
 
                                          DAWSON PRODUCTION PARTNERS, L.P.
 
                                          By: DAWSON PRODUCTION MANAGEMENT, INC.
                                              AS SOLE GENERAL PARTNER
 
                                          By:      /s/ FRANCIS D. JOHN
                                            ------------------------------------
   
                                                 Francis D. John, President
    
<PAGE>   28
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
RAM OIL WELL SERVICE, INC., ROWLAND TRUCKING CO., INC. AND YALE E. KEY, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                 James J. Byerlotzer
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                    Matt Simmons
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
JETER SERVICE CO.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President and Director           March 29, 1999
- -----------------------------------------------------    (Principal Financial Officer)
                 Stephen E. McGregor
 
               /s/ JACK D. LOFTIS, JR.                 Director                              March 29, 1999
- -----------------------------------------------------
                 Jack D. Loftis, Jr.
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                     James Burge
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
WELL-CO OIL SERVICE, INC.
 
                          *                            President                             March 29, 1999
- -----------------------------------------------------    (Principal Executive Officer)
                 James J. Byerlotzer
</TABLE>
    
<PAGE>   29
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                    Matt Simmons
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
WELLTECH MID-CONTINENT, INC., INDUSTRIAL OILFIELD SUPPLY, INC., JETER TRANSPORTATION, INC. AND JETER WELL
SERVICE, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                     James Burge
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
UPDIKE BROTHERS, INC. AND KEY ROCKY MOUNTAIN, INC.
 
                /s/ MICHAEL R. FURROW                  President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                   Richard Parrish
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
</TABLE>
    
<PAGE>   30
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
WATSON OILFIELD SERVICE & SUPPLY, INC.
 
                /s/ MICHAEL R. FURROW                  President                             March 29, 1999
- -----------------------------------------------------    (Principal Executive Officer)
                  Michael R. Furrow
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer) and Director
                 Stephen E. McGregor
 
                          *                            Controller and Treasurer              March 29, 1999
- -----------------------------------------------------    (Principal Accounting Officer)
                   Richard Parrish
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
J.W. GIBSON WELL SERVICE COMPANY
 
                /s/ MICHAEL R. FURROW                  President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                  Mark Christensen
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
BROOKS WELL SERVICING, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                 William C. McCurdy
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
</TABLE>
    
<PAGE>   31
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
 
                 /s/ DENIS BOULANGER                   Controller and Treasurer              March 29, 1999
- -----------------------------------------------------    (Principal Accounting Officer)
                   Denis Boulanger
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
LANDMARK FISHING & RENTAL, INC. AND PATRICK WELL SERVICE, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
               /s/ JACK D. LOFTIS, JR.                 Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                 Jack D. Loftis, Jr.
 
*By:         /s/ JACK D. LOFTIS, JR.
      ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
KEY ENERGY DRILLING, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                 James J. Byerlotzer
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                  Ronald T. McClung
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
KEY FOUR CORNERS, INC.
 
                          *                            President and Director (Principal     March 29, 1999
- -----------------------------------------------------    Executive Officer)
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
</TABLE>
    
<PAGE>   32
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                   Michael Palmer
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
WELLTECH EASTERN, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                   Kenneth C. Hill
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                   William Zehnder
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
KALKASKA OILFIELD SERVICES, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                   Kenneth C. Hill
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                   William Zehnder
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
ODESSA EXPLORATION INCORPORATED
 
                          *                            President, Chief Executive Officer    March 29, 1999
- -----------------------------------------------------    and Treasurer (Principal
                   D. Kirk Edwards                       Executive Officer and Principal
                                                         Accounting Officer)
</TABLE>
    
<PAGE>   33
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
 
                          *                            Chief Financial Officer (Principal    March 29, 1999
- -----------------------------------------------------    Financial Officer)
                   Danny R. Evatt
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
            *By: /s/ JACK D. LOFTIS, JR.
  ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
DAWSON PRODUCTION MANAGEMENT, INC., AND KEY ENERGY SERVICES -- CALIFORNIA, INC.
 
                          *                            President and Director (Principal     March 29, 1999
- -----------------------------------------------------    Executive Officer)
                   Francis D. John
 
                          *                            Vice President and Treasurer          March 29, 1999
- -----------------------------------------------------    (Principal Financial Officer and
                 Stephen E. McGregor                     Principal Accounting Officer)
 
            *By: /s/ JACK D. LOFTIS, JR.
  ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
DUNBAR WELL SERVICE, INC.
 
                /s/ MICHAEL R. FURROW                  President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President and Director           March 29, 1999
- -----------------------------------------------------    (Principal Financial Officer)
                 Stephen E. McGregor
 
                /s/ MARK CHRISTENSEN                   Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                  Mark Christensen
 
               /s/ JACK D. LOFTIS, JR.                 Director                              March 29, 1999
- -----------------------------------------------------
                 Jack D. Loftis, Jr.
 
            *By: /s/ JACK D. LOFTIS, JR.
  ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
KEY ENERGY SERVICES -- SOUTH TEXAS, INC.
 
                          *                            President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                 William C. McCurdy
</TABLE>
    
<PAGE>   34
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
 
                          *                            Vice President and Treasurer          March 29, 1999
- -----------------------------------------------------    (Principal Financial Officer and
                 Stephen E. McGregor                     Principal Accounting Officer)
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
FRONTIER WELL SERVICE, INC.
 
                /s/ MICHAEL R. FURROW                  President (Principal Executive        March 29, 1999
- -----------------------------------------------------    Officer)
                  Michael R. Furrow
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                   Francis D. John
 
                          *                            Vice President and Director           March 29, 1999
- -----------------------------------------------------    (Principal Financial Officer)
                 Stephen E. McGregor
 
                /s/ MARK CHRISTENSEN                   Treasurer (Principal Accounting       March 29, 1999
- -----------------------------------------------------    Officer)
                  Mark Christensen
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
DAWSON PRODUCTION TAYLOR, INC. AND DAWSON PRODUCTION ACQUISITION CORP.
 
                          *                            President and Director (Principal     March 29, 1999
- -----------------------------------------------------    Executive Officer)
                 Joan L. Dobrzynski
 
                          *                            Vice President, Treasurer and         March 29, 1999
- -----------------------------------------------------    Director (Principal Accounting
                Francis B. Jacobs, II                    Officer)
 
                          *                            Vice President (Principal             March 29, 1999
- -----------------------------------------------------    Financial Officer)
                 Stephen E. McGregor
 
                          *                            Director                              March 29, 1999
- -----------------------------------------------------
                 Victoria L. Garrett
 
*By:         /s/ JACK D. LOFTIS, JR.
     ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
</TABLE>
    
<PAGE>   35
 
   
<TABLE>
<CAPTION>
                     SIGNATURES                                      TITLE                        DATE
                     ----------                                      -----                        ----
<C>                                                    <S>                                <C>
DAWSON PRODUCTION PARTNERS, L.P.
BY: DAWSON PRODUCTION MANAGEMENT, INC. AS SOLE GENERAL PARTNER
 
                          *                            President and Director (Principal     March 29, 1999
- -----------------------------------------------------    Executive Officer)
                   Francis D. John
 
                          *                            Vice President and Treasurer          March 29, 1999
- -----------------------------------------------------    (Principal Financial Officer and
                 Stephen E. McGregor                     Principal Accounting Officer)
 
            *By: /s/ JACK D. LOFTIS, JR.
  ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
 
MOSLEY WELL SERVICE, INC.
 
                          *                            President and Director (Principal     March 29, 1999
- -----------------------------------------------------    Executive Officer)
                   Francis D. John
 
                          *                            Vice President, Treasurer and         March 29, 1999
- -----------------------------------------------------    Director (Principal Financial
                 Stephen E. McGregor                     Officer and Principal Accounting
                                                         Officer)
 
               /s/ JACK D. LOFTIS, JR.                 Director                              March 29, 1999
- -----------------------------------------------------
                 Jack D. Loftis, Jr.
 
            *By: /s/ JACK D. LOFTIS, JR.
  ------------------------------------------------
                 Jack D. Loftis, Jr.
                  Attorney-in-Fact
</TABLE>
    
<PAGE>   36
 
                                    EXHIBITS
 
   
<TABLE>
<CAPTION>
      EXHIBIT NO.                                DESCRIPTION
      -----------                                -----------
<C>                      <S>
 
          *4.1           -- Form of Senior Indenture
          *4.2           -- Form of Subordinated Indenture
          *4.3           -- Form of Senior Indenture with Guarantors
          *4.4           -- Form of Subordinated Indenture with Guarantors
           5.1           -- Opinion of Porter & Hedges, L.L.P.
          12.1           -- Statement Regarding Computation of Ratios of Earnings to
                            Fixed Charges
          23.1           -- Consent of Porter & Hedges, L.L.P. (included in Exhibit
                            5.1)
         *23.2           -- Consent of KPMG LLP
         *23.3           -- Consent of KPMG LLP
          24.1           -- Power of Attorney (included on signature page)
          24.2           -- Power of Attorney for Guarantors (included on signature
                            page)
         +25.1           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Senior Debt
         +25.2           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Subordinated Debt
         +25.3           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Senior Debt with
                            Guarantors
         +25.4           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 for Subordinated Debt with
                            Guarantors
</TABLE>
    
 
- -------------------------
 
   
* Filed herewith.
    
   
+ To be filed under cover of Form 8-K.
    

<PAGE>   1
                                                                     EXHIBIT 4.1
================================================================================



                            KEY ENERGY SERVICES, INC.

                                       AND

                                   [TRUSTEE],

                                     TRUSTEE


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




                                    INDENTURE

                                   DATED AS OF

                          _______________________, 1999



                                 DEBT SECURITIES
                                  (SENIOR DEBT)



================================================================================


<PAGE>   2



                            Key Energy Services, Inc.

           Reconciliation and tie between Trust Indenture Act of 1939
               and Indenture, dated as of _________________, 1999

                     ---------------------------------------
<TABLE>
<CAPTION>
Section of
Trust Indenture                                                 Section(s) of
Act of 1939                                                       Indenture
- -----------                                                     -------------
<S>                                                             <C>
Section 310  (a)(1).........................................    609
             (a)(2).........................................    609
             (a)(3).........................................    Not Applicable
             (a)(4).........................................    Not Applicable
             (b)............................................    608, 610
Section 311  (a)............................................    613
             (b)............................................    613
             (c)............................................    Not Applicable
Section 312  (a)............................................    701, 702(a)
             (b)............................................    702(b)
             (c)............................................    702(c)
Section 313  (a)............................................    703(a)
             (b)............................................    703(b)
             (c)............................................    703(c)
             (d)............................................    703(d)
Section 314  (a)............................................    704, 1005
             (b)............................................    Not Applicable
             (c)(1).........................................    103
             (c)(2).........................................    103
             (c)(3).........................................    Not Applicable
             (d)............................................    Not Applicable
             (e)............................................    103
Section 315  (a)............................................    601(a)
             (b)............................................    602
             (c)............................................    601(b)
             (d)............................................    601(c)
             (d)(1).........................................    601(a)(1)
             (d)(2).........................................    601(c)(2)
             (d)(3).........................................    601(c)(3)
             (e)............................................    513
Section 316  (a)(1)(A)......................................    502, 511
             (a)(1)(B)......................................    512
             (a)(2).........................................    Not Applicable
             (a)(last sentence).............................    101
             (b)............................................    508
Section 317  (a)(1).........................................    503
             (a)(2).........................................    504
             (b)............................................    1003
Section 318  (a)............................................    108
</TABLE>

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

Note: This reconciliation and tie shall not, for any purpose, be deemed to be a
      part of the Indenture.


<PAGE>   3


                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                       <C>
RECITALS OF THE COMPANY.......................................................1

                                   ARTICLE ONE
                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.....................................................1
     Act .....................................................................2
     Additional Amounts ......................................................2
     Affiliate ...............................................................2
     Agent Members ...........................................................2
     Authenticating Agent ....................................................2
     Authorized Newspaper ....................................................2
     Board of Directors ......................................................2
     Board Resolution ........................................................2
     Business Day ............................................................3
     Commission ..............................................................3
     Company  ................................................................3
     Company Request and Company Order .......................................3
     Conversion Event ........................................................3
     Corporate Trust Office ..................................................3
     Defaulted Interest ......................................................3
     Depositary ..............................................................3
     Dollar ..................................................................3
     Event of Default ........................................................3
     Exchange Rate ...........................................................3
     Holder ..................................................................3
     Indenture ...............................................................4
     Interest ................................................................4
     Interest Payment Date ...................................................4
     Judgment Currency .......................................................4
     Maturity ................................................................4
     Officers' Certificate ...................................................4
     Opinion of Counsel ......................................................4
     Original Issue Discount Security ........................................4
     Outstanding .............................................................4
     Paying Agent ............................................................5
     Person ..................................................................5
     Place of Payment ........................................................5
</TABLE>



                                       i

<PAGE>   4


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                       <C>
     Predecessor Security ....................................................5
     Redemption Date .........................................................6
     Redemption Price ........................................................6
     Regular Record Date .....................................................6
     Required Currency .......................................................6
     Responsible Officer .....................................................6
     Securities ..............................................................6
     Security Custodian ......................................................6
     Security Register .......................................................6
     Special Record Date .....................................................6
     Stated Maturity .........................................................6
     Subsidiary ..............................................................7
     Trustee .................................................................7
     Trust Indenture Act .....................................................7
     United States ...........................................................7
     United States Alien .....................................................7
     U.S. Government Obligations .............................................7
     Vice President ..........................................................7
     Wholly Owned Subsidiary .................................................7
     Yield to Maturity .......................................................7

SECTION 102.  Incorporation by Reference of Trust Indenture Act ..............7
SECTION 103.  Compliance Certificates and Opinions ...........................8
SECTION 104.  Form of Documents Delivered to Trustee .........................9
SECTION 105.  Acts of Holders; Record Dates ..................................9
SECTION 106.  Notices, Etc., to Trustee and Company .........................10
SECTION 107.  Notice to Holders; Waiver .....................................11
SECTION 108.  Conflict With Trust Indenture Act .............................11
SECTION 109.  Effect of Headings and Table of Contents ......................11
SECTION 110.   Successors and Assigns .......................................11
SECTION 111.  Separability Clause ...........................................12
SECTION 112.  Benefits of Indenture .........................................12
SECTION 113.  Governing Law .................................................12
SECTION 114.  Legal Holidays ................................................12
SECTION 115.  Corporate Obligation ..........................................12

                                   ARTICLE TWO
                                 SECURITY FORMS

SECTION 201.  Forms Generally ...............................................13
SECTION 202.  Form of Trustee's Certificate of Authentication ...............13
SECTION 203.  Securities in Global Form .....................................13
</TABLE>



                                       ii

<PAGE>   5


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                       <C>

                                  ARTICLE THREE
                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series ..........................17
SECTION 302.  Denominations .................................................19
SECTION 303.  Execution, Authentication, Delivery and Dating ................20
SECTION 304.  Temporary Securities ..........................................21
SECTION 305.  Registration, Registration of Transfer and Exchange ...........22
SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities ..............23
SECTION 307.  Payment of Interest; Interest Rights Preserved ................23
SECTION 308.  Persons Deemed Owners .........................................25
SECTION 309.  Cancellation ..................................................25
SECTION 310.  Computation of Interest .......................................25
SECTION 311.  CUSIP Numbers .................................................25

                                  ARTICLE FOUR
                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture .......................26
SECTION 402.  Application of Trust Money ....................................28
SECTION 403.  Discharge of Liability on Securities of Any Series ............28
SECTION 404.  Applicability of Defeasance Provisions; Company's Option 
                   to Effect Defeasance or Covenant Defeasance ..............29
SECTION 405.  Defeasance and Discharge ......................................29
SECTION 406.  Covenant Defeasance ...........................................29
SECTION 407.  Conditions to Defeasance or Covenant Defeasance ...............30
SECTION 408.  Deposited Money and Government Obligations to be Held
                   in Trust .................................................31
SECTION 409.  Repayment to Company ..........................................32
SECTION 410.  Indemnity for Government Obligations ..........................32
SECTION 411.  Reinstatement .................................................32

                                  ARTICLE FIVE
                                    REMEDIES

SECTION 501.  Events of Default .............................................32
SECTION 502.  Acceleration of Maturity; Rescission and Annulment ............34
SECTION 503.  Collection of Indebtedness and Suits for Enforcement
                   by Trustee ...............................................35
SECTION 504.  Trustee May File Proofs of Claim ..............................36
SECTION 505.  Trustee May Enforce Claims Without Possession of
                   Securities or Coupons.....................................37
</TABLE>



                                       iii

<PAGE>   6


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
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SECTION 506.  Application of Money Collected ................................37
SECTION 507.  Limitation on Suits ...........................................38
SECTION 508.  Unconditional Right of Holders to Receive Principal
                   Premium and Interest .....................................39
SECTION 509.  Restoration of Rights and Remedies ............................39
SECTION 510.  Rights and Remedies Cumulative ................................39
SECTION 511.  Delay or Omission Not Waiver ..................................39
SECTION 512.  Control by Holders ............................................40
SECTION 513.  Waiver of Past Defaults .......................................40
SECTION 514.  Undertaking for Costs .........................................40
SECTION 515.  Waiver of Stay or Extension Laws ..............................41

                                   ARTICLE SIX
                                   THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities ...........................41
SECTION 602.  Notice of Defaults ............................................42
SECTION 603.  Certain Rights of Trustee .....................................43
SECTION 604.  Not Responsible for Recitals or Issuance of Securities ........44
SECTION 605.  May Hold Securities ...........................................44
SECTION 606.  Money Held in Trust ...........................................44
SECTION 607.  Compensation and Reimbursement ................................44
SECTION 608.  Disqualification; Conflicting Interests .......................45
SECTION 609.  Corporate Trustee Required; Eligibility .......................45
SECTION 610.  Resignation and Removal; Appointment of Successor .............46
SECTION 611.  Acceptance of Appointment by Successor ........................47
SECTION 612.  Merger, Conversion, Consolidation or Succession to Business ...48
SECTION 613.  Preferential Collection of Claims Against Company .............49
SECTION 614.  Appointment of Authenticating Agent ...........................49

                                  ARTICLE SEVEN
                HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders .....51
SECTION 702.  Preservation of Information; Communications to Holders ........51
SECTION 703.  Reports by Trustee ............................................52
SECTION 704.  Reports by Company ............................................52
</TABLE>



                                       iv

<PAGE>   7


<TABLE>
<CAPTION>
                                                                           PAGE
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                                  ARTICLE EIGHT
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms ..........52
SECTION 802.  Successor Person Substituted ..................................53

                                  ARTICLE NINE
                             SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders ............53
SECTION 902.  Supplemental Indentures With Consent of Holders ...............54
SECTION 903.  Execution of Supplemental Indentures ..........................56
SECTION 904.  Effect of Supplemental Indentures .............................56
SECTION 905.  Conformity With Trust Indenture Act ...........................56
SECTION 906.  Reference in Securities to Supplemental Indentures ............56

                                   ARTICLE TEN
                                    COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest ...................56
SECTION 1002.  Maintenance of Office or Agency ..............................57
SECTION 1003.  Money for Securities Payments to be Held in Trust ............57
SECTION 1004.  Existence ....................................................58
SECTION 1005.  Statement by Officers as to Default ..........................59
SECTION 1006.  Waiver of Certain Covenants ..................................59
SECTION 1007.  Additional Amounts ...........................................59

                                 ARTICLE ELEVEN
                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article .....................................60
SECTION 1102.  Election to Redeem; Notice to Trustee ........................60
SECTION 1103.  Selection by Trustee of Securities to be Redeemed ............60
SECTION 1104.  Notice of Redemption .........................................61
SECTION 1105.  Deposit of Redemption Price ..................................62
SECTION 1106.  Securities Payable on Redemption Date ........................62
SECTION 1107.  Securities Redeemed in Part ..................................62
SECTION 1108.  Purchase of Securities .......................................63
</TABLE>



                                        v

<PAGE>   8

<TABLE>
<CAPTION>
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<S>                                                                       <C>
                                 ARTICLE TWELVE
                                  SINKING FUNDS

SECTION 1201.  Applicability of Article .....................................63
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities ........63
SECTION 1203.  Redemption of Securities for Sinking Fund ....................64

                                ARTICLE THIRTEEN
                        MEETINGS OF HOLDERS OF SECURITIES

SECTION 1301.  Purposes for Which Meetings May Be Called ....................64
SECTION 1302.  Call, Notice and Place of Meetings ...........................64
SECTION 1303.  Persons Entitled to Vote at Meetings .........................65
SECTION 1304.  Quorum; Action ...............................................65
SECTION 1305.  Determination of Voting Rights; Conduct and
                   Adjournment of Meetings...................................66
SECTION 1306.  Counting Votes and Recording Action of Meetings ..............66
</TABLE>


                                       vi

<PAGE>   9



          INDENTURE, dated as of _______________, 1998 between KEY ENERGY
SERVICES, INC., a corporation duly organized and existing under the laws of the
State of Maryland (herein called the "Company"), having its principal office at
Two Tower Center, 10th Floor, East Brunswick, New Jersey 08816, and [TRUSTEE], a
national banking association, as Trustee (herein called the "Trustee"), the
office of the Trustee at which at the date hereof its corporate trust business
is principally administered being [TRUSTEE ADDRESS].

                             RECITALS OF THE COMPANY

          The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its debentures, notes
or other evidences of indebtedness (herein called the "Securities"), to be
issued in one or more series as in this Indenture provided.

          This Indenture is subject to the provisions of the Trust Indenture Act
and the rules and regulations of the Commission promulgated thereunder that are
required to be part of this Indenture and, to the extent applicable, shall be
governed by such provisions.

          All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

                   NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of series
thereof, as follows:

                                   ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.   Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

          (1) the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

          (2) all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with generally accepted accounting
     principles in the United States, and, except as otherwise herein expressly
     provided, the term "generally accepted accounting principles" with respect
     to any computation required or permitted hereunder shall mean such


                                        1

<PAGE>   10



     accounting principles as are generally accepted in the United States at the
     date of such computation; and

          (3) the words "herein," "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any particular
     Article, Section or other subdivision.

          Certain terms, used principally in Article Six, are defined in Section
102.

          "Act," when used with respect to any Holder, has the meaning specified
in Section 105.

          "Additional Amounts" means any additional amounts that are required by
the express terms of a Security or by or pursuant to a Board Resolution, under
circumstances specified therein or pursuant thereto, to be paid by the Company
with respect to certain taxes, assessments or other governmental charges imposed
on certain Holders and that are owing to such Holders.

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

          "Agent Members" has the meaning specified in Section 203.

          "Authenticating Agent" means any Person, which may include the
Company, authorized by the Trustee to act on behalf of the Trustee pursuant to
Section 614 to authenticate Securities of one or more series.

          "Authorized Newspaper" means a newspaper, in the English language or
in an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place. Where successive publications
are required to be made in Authorized Newspapers, the successive publications
may be made in the same or in different newspapers in the same city meeting the
foregoing requirements and in each case on any Business Day.

          "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

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



                                        2

<PAGE>   11



          "Business Day," when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking institutions in that Place of Payment are authorized or obligated by law
or executive order to close.

          "Commission" means the Securities and Exchange Commission, as from
time to time constituted, created under the Securities Exchange Act of 1934, as
amended, or, if at any time after the execution of this instrument such
Commission is not existing and performing the duties now assigned to it under
the Trust Indenture Act, then the body performing such duties at such time.

          "Company" means the Person named as the "Company" in the first
paragraph of this Indenture until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

          "Company Request" and "Company Order" mean, respectively, a written
request or order signed in the name of the Company by its Chairman of the Board,
its President or a Vice President, and by its Treasurer, an Assistant Treasurer,
its Controller, an Assistant Controller, its Secretary or an Assistant
Secretary, and delivered to the Trustee.

          "Conversion Event" has the meaning specified in Section 501.

          "Corporate Trust Office" means the principal office of the Trustee in
[TRUSTEE'S CITY AND STATE] at which at any particular time its corporate trust
business shall be principally administered, which office at the date hereof is
that indicated in the introductory paragraph of this Indenture.

          "Defaulted Interest" has the meaning specified in Section 307.

          "Depositary" means, with respect to the Securities of any series
issuable or issued in whole or in part in global form, the Person designated as
Depositary by the Company pursuant to Section 301 with respect to the Securities
of such series until a successor Depositary shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Depositary" shall
mean or include each Person who is then a Depositary hereunder, and if at any
time there is more than one such Person, "Depositary" as used with respect to
the Securities of any series shall mean the Depositary with respect to the
Securities of that series.

          "Dollar" or "$" means a dollar or other equivalent unit in such coin
or currency of the United States as at the time shall be legal tender for the
payment of public and private debts.

          "Event of Default" has the meaning specified in Section 501.

          "Exchange Rate" has the meaning specified in Section 501.

          "Holder," when used with respect to any Security, means the Person in
whose name the Security is registered in the Security Register.


                                        3

<PAGE>   12


          "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

          "Interest," when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

          "Interest Payment Date," when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

          "Judgment Currency" has the meaning specified in Section 506.

          "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

          "Officers' Certificate" means a certificate signed by the Chairman of
the Board, the President or a Vice President, and by the Treasurer, the
Controller, the Secretary or an Assistant Treasurer, Assistant Controller or
Assistant Secretary, of the Company, and delivered to the Trustee, which
certificate shall comply with Section 103 hereof.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for or an employee of the Company, rendered, if applicable, in
accordance with Section 314(c) of the Trust Indenture Act, which opinion shall
comply with Section 103 hereof.

          "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

          "Outstanding," when used with respect to Securities of a series,
means, as of the date of determination, all Securities of such series
theretofore authenticated and delivered under this Indenture, except:

          (i) Securities theretofore cancelled by the Trustee or delivered to
     the Trustee for cancellation;

          (ii) Securities for whose payment or redemption money in the necessary
     amount has been theretofore irrevocably deposited with the Trustee or any
     Paying Agent (other than the Company) in trust or set aside and segregated
     in trust by the Company (if the Company shall act as its own Paying Agent)
     for the Holders of such Securities; provided that, if such


                                        4

<PAGE>   13


     Securities are to be redeemed, notice of such redemption has been duly
     given pursuant to this Indenture or provision therefor satisfactory to the
     Trustee has been made; and

          (iii) Securities which have been paid pursuant to Section 306 or in
     exchange for or in lieu of which other Securities have been authenticated
     and delivered pursuant to this Indenture, other than any such Securities in
     respect of which there shall have been presented to the Trustee proof
     satisfactory to it that such Securities are held by a bona fide purchaser
     in whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, or whether a
quorum is present at a meeting of Holders of Securities, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding for such purposes shall be the principal amount thereof that would
be due and payable as of the date of such determination if the Maturity thereof
were accelerated on such date pursuant to Section 502, (b) the principal amount
of a Security denominated in a foreign currency shall be the U.S. dollar
equivalent, determined by the Company on the date of original issuance of such
Security, of the principal amount (or, in the case of an Original Issue Discount
Security, the U.S. dollar equivalent, determined on the date of original
issuance of such Security, of the amount determined as provided in (a) above),
of such Security and (c) Securities owned by the Company or any other obligor
upon the Securities or any Affiliate of the Company or of such other obligor
shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent or waiver or upon any
such determination as to the presence of a quorum, only Securities which the
Trustee knows to be so owned shall be so disregarded. Securities so owned which
have been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.

          "Paying Agent" means any Person, which may include the Company,
authorized by the Company to pay the principal of (and premium, if any) and
interest on or Additional Amounts with respect to any one or more series of
Securities on behalf of the Company.

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

          "Place of Payment," when used with respect to the Securities of any
series, means the place or places where the principal of (and premium, if any)
and interest on and any Additional Amounts with respect to the Securities of
that series are payable as specified in accordance with Section 301 subject to
the provisions of Section 1002.

          "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for


                                        5

<PAGE>   14


the purposes of this definition, any Security authenticated and delivered under
Section 306 in exchange for or in lieu of a mutilated, destroyed, lost or stolen
Security shall be deemed to evidence the same debt as the mutilated, destroyed,
lost or stolen Security.

          "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to the terms
of the Security and this Indenture.

          "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to the terms of
the Security and this Indenture.

          "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 301, or, if not so specified, the last day of the
calendar month preceding such Interest Payment Date if such Interest Payment
Date is the fifteenth day of the calendar month or the fifteenth day of the
calendar month preceding such Interest Payment Date if such Interest Payment
Date is the first day of a calendar month, whether or not such day shall be a
Business Day.

          "Required Currency" has the meaning specified in Section 506.

          "Responsible Officer," when used with respect to the Trustee, means
the chairman or any vice chairman of the board of directors, the chairman or any
vice chairman of the executive committee of the board of directors, the
president, any vice president, the secretary, any assistant secretary, any trust
officer or assistant trust officer or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate trust
matter, any other officer to whom such matter is referred because of his
knowledge of and familiarity with the particular subject.

          "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

          "Security Custodian" means, with respect to Securities of a series
issued in global form, the Trustee for Securities of such series, acting in its
capacity as custodian with respect to the Securities of such series, or any
successor entity thereto, or any other Person designated by such Trustee, or
such successor entity, to act as custodian with respect to the securities of
such series.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

          "Special Record Date" for the payment of any Defaulted Interest on the
Securities of any series means a date fixed by the Trustee pursuant to Section
307.

          "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.


                                        6

<PAGE>   15


          "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this Indenture until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder, and
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed, except as provided
in Section 905.

          "United States" means the United States of America (including the
states and the District of Columbia) and its "possessions," which include Puerto
Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

          "United States Alien" means any Person who, for United States federal
income tax purposes, is a foreign corporation, a non-resident alien individual,
a non-resident alien or foreign fiduciary of an estate or trust, or a foreign
partnership.

          "U.S. Government Obligations" has the meaning specified in Section
401.

          "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."

          "Wholly Owned Subsidiary" means a corporation all the outstanding
voting stock (other than any directors' qualifying shares) of which is owned,
directly or indirectly, by the Company or by one or more other Wholly Owned
Subsidiaries, or by the Company and one or more other Wholly Owned Subsidiaries.
For the purposes of this definition, "voting stock" means stock which ordinarily
has voting power for the election of directors, whether at all times or only so
long as no senior class of stock has such voting power by reason of any
contingency.

          "Yield to Maturity," when used with respect to any Original Issue
Discount Security, means the yield to maturity, if any, set forth on the face
thereof.

SECTION 102.   Incorporation by Reference of Trust Indenture Act.

          Whenever this Indenture refers to a provision of the Trust Indenture
Act, the provision is incorporated by reference in and made a part of this
Indenture. The following Trust Indenture Act terms used in this Indenture have
the following meanings:


                                        7

<PAGE>   16


          "Bankruptcy Act" means the Bankruptcy Act or Title 11 of the United
     States Code.

          "indenture securities" means the Securities.

          "indenture security holder" means a Holder.

          "indenture to be qualified" means this Indenture.

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

          "obligor" on the indenture securities means the Company or any other
     obligor on the Securities.

          All terms used in this Indenture that are defined by the Trust
Indenture Act, defined by Trust Indenture Act reference to another statute or
defined by Commission rule under the Trust Indenture Act and not otherwise
defined herein have the meanings assigned to them therein.

SECTION 103.   Compliance Certificates and Opinions.

          Except as otherwise expressly provided by this Indenture, upon any
application or request by the Company to the Trustee to take any action under
any provision of this Indenture, the Company shall furnish to the Trustee an
Officers' Certificate stating that all conditions precedent, if any (including
any covenants the compliance with which constitutes a condition precedent
provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent, if any (including any covenants the
compliance with which constitutes a condition precedent) have been complied
with, except that in the case of any such application or request as to which the
furnishing of such documents is specifically required by any provision of this
Indenture relating to such particular application or request, no additional
certificate or opinion need be furnished.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

          (1) a statement that each Person signing such certificate or opinion
     has read such covenant or condition and the definitions herein relating
     thereto;

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

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


                                        8

<PAGE>   17


          (4) a statement as to whether, in the opinion of each such Person,
     such condition or covenant has been complied with.

SECTION 104.   Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 105.   Acts of Holders; Record Dates.

          (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing. Except as herein otherwise expressly provided, such action
shall become effective when such instrument or instruments or record thereof or
both are delivered to the Trustee and, where it is hereby expressly required, to
the Company. Such instrument or instruments and any such record (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments and so voting at any
such meeting. Proof of execution of any such instrument or of a writing
appointing any such agent, or the holding of any Person of a Security, shall be
sufficient for any purpose of this Indenture and (subject to Section 601)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section. The record of any meeting of Holders of Securities
shall be proved in the manner provided in Section 1306.

          The Company may set in advance a record date for purposes of
determining the identity of Holders of Securities entitled to vote or consent to
any action by vote or consent


                                        9

<PAGE>   18


authorized or permitted under this Indenture. If a record date is fixed, those
Persons who were Holders of Outstanding Securities at such record date (or their
duly designated proxies), and only those Persons, shall be entitled with respect
to such Securities to take such action by vote or consent or to revoke any vote
or consent previously given, whether or not such Persons continue to be Holders
after such record date. Promptly after any record date is set pursuant to this
paragraph, the Company, at its own expense, shall cause notice thereof to be
given to the Trustee in writing in the manner provided in Section 106 and to the
relevant Holders as set forth in Section 107.

          (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          (c) The principal amount and serial numbers of Securities held by any
Person, and the date of holding the same, shall be proved by the Security
Register.

          (d) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Security. Any Holder or subsequent Holder may revoke the request, demand,
authorization, direction, notice, consent or other Act as to his Security or
portion of his Security; provided, however, that such revocation shall be
effective only if the Trustee receives the notice of revocation before the date
the Act becomes effective.

SECTION 106.   Notices, Etc., to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

          (1) the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at its Corporate Trust Office, Attention: Corporate
     Trust Administration, or

          (2) the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided) if
     in writing and mailed, first-class postage prepaid, to the Company
     addressed to it at the address of its principal


                                       10

<PAGE>   19


     office specified in the first paragraph of this Indenture or at any other
     address previously furnished in writing to the Trustee by the Company,
     Attention: Corporate Secretary.

SECTION 107.   Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of Securities of
any event, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, to
each Holder affected by such event, at the address of such Holder as it appears
in the Security Register, not later than the latest date, and not earlier than
the earliest date, prescribed for the giving of such notice.

          In case by reason of the suspension of regular mail service, or by
reason of any other cause it shall be impracticable to give such notice to
Holders of Securities by mail, then such notification as shall be made with the
approval of the Trustee shall constitute a sufficient notification for every
purpose hereunder. In any case in which notice to Holders of Securities is given
by mail, neither the failure to mail such notice, nor any defect in any notice
so mailed, to any particular Holder of a Security, shall affect the sufficiency
of such notice with respect to other Holders of Securities.

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

SECTION 108.   Conflict With Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with any
provision of the Trust Indenture Act or another provision hereof which is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such provision of the Trust Indenture Act or such other provision
hereof which is required to be included by any provision of the Trust Indenture
Act shall control. If any provision of this Indenture modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
former provision shall be deemed to apply to this Indenture as so modified or to
be excluded.

SECTION 109.   Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 110.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.


                                       11

<PAGE>   20


SECTION 111.  Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 112.  Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, any Authenticating Agent, Paying Agent, Security Registrar, Security
Custodian and the Holders, any benefit or any legal or equitable right, remedy
or claim under this Indenture.

SECTION 113.  Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the laws of the State of New York, but without giving effect
to applicable principles of conflicts of law to the extent the application of
the laws of another jurisdiction would be required thereby.

SECTION 114.  Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture or of the
Securities) payment of principal and interest (and premium and Additional
Amounts, if any) need not be made at such Place of Payment on such date, but may
be made on the next succeeding Business Day at such Place of Payment with the
same force and effect as if made on the Interest Payment Date or Redemption
Date, or at the Stated Maturity, provided that no interest shall accrue with
respect to such payment for the period from and after such Interest Payment
Date, Redemption Date or Stated Maturity, as the case may be.

SECTION 115.  Corporate Obligation.

          No recourse may be taken, directly or indirectly, against any
incorporator, subscriber to the capital stock, stockholder, officer, director or
employee of the Company or the Trustee or of any predecessor or successor of the
Company or the Trustee with respect to the Company's obligations on the
Securities or the obligations of the Company or the Trustee under this Indenture
or any certificate or other writing delivered in connection herewith.


                                       12

<PAGE>   21


                                   ARTICLE TWO

                                 SECURITY FORMS

SECTION 201.  Forms Generally.

          The Securities of each series shall be in fully registered form and in
substantially such form or forms (including temporary or permanent global form)
as shall be established by or pursuant to a Board Resolution or in one or more
indentures supplemental hereto, in each case with such appropriate insertions,
omissions, substitutions and other variations as are required or permitted by
this Indenture and may have such letters, numbers or other marks of
identification and such legends or endorsements placed thereon as may be
required to comply with the rules of any securities exchange or as may,
consistently herewith, be determined by the officers executing such Securities,
as evidenced by their execution of the Securities. If temporary Securities of
any series are issued in global form as permitted by Section 304, the form
thereof shall be established as provided in the preceding sentence. A copy of
the Board Resolution establishing the form or forms of Securities of any series
(or any such temporary global Security) shall be certified by the Secretary or
an Assistant Secretary of the Company and delivered to the Trustee at or prior
to the delivery of the Company Order contemplated by Section 303 for the
authentication and delivery of such Securities (or any such temporary global
Security).

          The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution thereof.

SECTION 202.  Form of Trustee's Certificate of Authentication.

          The Trustee's certificate of authentication shall be in substantially
the following form:

          "This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.

                                         [                                   ],
                                          -----------------------------------
                                                as Trustee

                                            By
                                               --------------------------  
                                                  Authorized Signatory."

SECTION 203.  Securities in Global Form.

          If Securities of a series are issuable in global form, as contemplated
by Section 301, then, notwithstanding clause (10) of Section 301 and the
provisions of Section 302, any such Security shall represent such of the
Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time


                                       13

<PAGE>   22


to time endorsed thereon and that the aggregate amount of Outstanding Securities
represented thereby may from time to time be reduced to reflect exchanges. Any
endorsement of a Security in global form to reflect the amount, or any increase
or decrease in the amount, of Outstanding Securities represented thereby shall
be made by the Trustee in such manner and upon instructions given by such Person
or Persons as shall be specified in such Security or in a Company Order to be
delivered to the Trustee pursuant to Section 303 or Section 304. Subject to the
provisions of Section 303 and, if applicable, Section 304, the Trustee shall
deliver and redeliver any Security in permanent global form in the manner and
upon instructions given by the Person or Persons specified in such Security or
in the applicable Company Order. With respect to the Securities of any series
that are represented by a Security in global form, the Company authorizes the
execution and delivery by the Trustee of a letter of representations or other
similar agreement or instrument in the form customarily provided for by the
Depositary appointed with respect to such global Security. Any Security in
global form may be deposited with the Depositary or its nominee, or may remain
in the custody of the Security Custodian therefor pursuant to a FAST Balance
Certificate Agreement or similar agreement between the Trustee and the
Depositary. If a Company Order pursuant to Section 303 or 304 has been, or
simultaneously is, delivered, any instructions by the Company with respect to
endorsement or delivery or redelivery of a Security in global form shall be in
writing but need not comply with Section 103 and need not be accompanied by an
Opinion of Counsel.

          Members of, or participants in, the Depositary ("Agent Members") shall
have no rights under this Indenture with respect to any Security issued in
global form held on their behalf by the Depositary, or the Security Custodian as
its custodian, or under such global Security, and the Depositary may be treated
by the Company, the Security Custodian and any agent of the Company or the
Trustee as the absolute owner of such global Security for all purposes
whatsoever. Notwithstanding the foregoing, (i) the registered holder of a
Security of any series issued in global form may grant proxies and otherwise
authorize any Person, including Agent Members and Persons that may hold
interests through Agent Members, to take any action that a Holder of such series
is entitled to take under this Indenture or the Securities of such series and
(ii) nothing herein shall prevent the Company, the Security Custodian or any
agent of the Company or the Security Custodian, from giving effect to any
written certification, proxy or other authorization furnished by the Depositary
or shall impair, as between the Depositary and its Agent Members, the operation
of customary practices governing the exercise of the rights of a beneficial
owner of any Security.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be exchangeable
only as provided in this paragraph. If the beneficial owners of interests in a
permanent global Security are entitled to exchange such interest for Securities
of such series and of like tenor and principal amount of another authorized form
and denomination, as specified as contemplated by Section 301, then without
unnecessary delay but in any event not later than the earliest date on which
such interests may be so exchanged, the Company shall deliver to the Trustee
definitive Securities of that series in an aggregate principal amount equal to
the principal amount of such permanent global Security, executed by the Company.
On or after the earliest date on which such interests may be so exchanged, such
permanent global Security shall be surrendered from time to time in accordance
with instructions given to the Trustee and the Depositary (which instructions
shall be in writing but


                                       14

<PAGE>   23


need not comply with Section 103 or be accompanied by an Opinion of Counsel) by
the Depositary or such other depositary as shall be specified in the Company
Order with respect thereto to the Trustee, as the Company's agent for such
purpose, to be exchanged, in whole or in part, for definitive Securities of the
same series without charge and the Trustee shall authenticate and deliver, in
exchange for each portion of such permanent global Security, a like aggregate
principal amount of other definitive Securities of the same series of authorized
denominations and of like tenor as the portion of such permanent global Security
to be exchanged; provided, however, that no such exchanges may occur during a
period beginning at the opening of business 15 days before any selection of
Securities of that series is to be redeemed and ending on the relevant
Redemption Date. Promptly following any such exchange in part, such permanent
global Security marked to evidence the partial exchange shall be returned by the
Trustee to the Depositary or such other depositary referred to above in
accordance with the instructions of the Company referred to above. If a
definitive Security is issued in exchange for any portion of a permanent global
Security after the close of business at the office or agency where such exchange
occurs on (i) any Regular Record Date and before the opening of business at such
office or agency on the relevant Interest Payment Date, or (ii) any Special
Record Date and before the opening of business at such office or agency on the
related proposed date for payment of Defaulted Interest, interest or Defaulted
Interest, as the case may be, will not be payable on such Interest Payment Date
or proposed date for payment, as the case may be, in respect of such Security,
but will be payable on such Interest Payment Date or proposed for payment, as
the case may be, only to the Person to whom interest in respect of such portion
of such permanent global Security is payable in accordance with the provisions
of this Indenture.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, transfers of a Security issued in global form shall
be limited to transfers of such global Security in whole, but not in part, to
the Depositary, its successors or their respective nominees. Interests of
beneficial owners in a Security issued in global form may be transferred in
accordance with the rules and procedures of the Depositary. Securities of any
series shall be transferred to all beneficial owners of a global Security of
such series in exchange for their beneficial interests in that global Security
if, and only if, either (1) the Depositary notifies the Company that it is
unwilling or unable to continue as Depositary for the global Security of such
series and a successor Depositary is not appointed by the Company within 90 days
of such notice, (2) an Event of Default has occurred with respect to such series
and is continuing and the Security Registrar has received a request from the
Depositary or the Trustee to issue Securities of such series in lieu of all or a
portion of that global Security (in which case the Company shall deliver
Securities of such series within 30 days of such request) or (3) the Company
determines not to have the Securities of such series represented by a global
Security.

          In connection with any transfer of a portion of the beneficial
interest in a global Security of any series to beneficial owners pursuant to
this Section 203, the Security Registrar shall reflect on its books and records
the date and a decrease in the principal amount of the global Security of that
series in an amount equal to the principal amount of the beneficial interest in
the global Security of that series to be transferred, and the Company shall
execute, and the Trustee upon receipt of a Company Order for the authentication
and delivery of Securities of that series shall authenticate and deliver, one or
more Securities of the same series of like tenor and amount.


                                       15

<PAGE>   24


          In connection with the transfer of all the beneficial interests in a
global Security of any series to beneficial owners pursuant to this Section 203,
the global Security shall be deemed to be surrendered to the Trustee for
cancellation, and the Company shall execute, and the Trustee shall authenticate
and deliver, to each beneficial owner identified by the Depositary in exchange
for its beneficial interest in the global Security, an equal aggregate principal
amount of Securities of that series of authorized denominations.

          Neither the Company nor the Trustee will have any responsibility or
liability for any aspect of the records relating to, or payments made on account
of, Securities of any series by the Depositary, or for maintaining, supervising
or reviewing any records of the Depositary relating to such Securities. Neither
the Company nor the Trustee shall be liable for any delay by the related global
Security Holder or the Depositary in identifying the beneficial owners, and each
such Person may conclusively rely on, and shall be protected in relying on,
instructions from such global Security Holder or the Depositary for all purposes
(including with respect to the registration and delivery, and the respective
principal amounts, of the Securities to be issued).

          The provisions of the last sentence of Section 303 shall apply to any
Security in global form if such Security was never issued and sold by the
Company and the Company delivers to the Trustee the Security in global form
together with written instructions (which need not comply with Section 103 and
need not be accompanied by an Opinion of Counsel) with regard to the reduction
in the principal amount of Securities represented thereby, together with the
written statement contemplated by the last sentence of Section 303.

          Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of (and
premium, if any) and interest on and any Additional Amounts with respect to any
Security in permanent global form shall be made to the Person or Persons
specified therein.

          Notwithstanding the provisions of Section 308 and except as provided
in the preceding paragraph, the Company, the Trustee and any agent of the
Company or of the Trustee shall treat a Person as the Holder of such principal
amount of Outstanding Securities represented by a global Security as shall be
specified in a written statement, if any, of the Holder of such global Security,
which is produced to the Security Registrar by such Holder.

          Global Securities may be issued in either temporary or permanent form.
Permanent global Securities will be issued in definitive form.


                                       16

<PAGE>   25


                                  ARTICLE THREE

                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution, and set forth in an Officers'
Certificate, or established in one or more indentures supplemental hereto, prior
to the issuance of Securities of any series,

          (1) the title of the Securities of the series (which shall distinguish
     the Securities of the series from all other Securities);

          (2) any limit upon the aggregate principal amount of the Securities of
     the series which may be authenticated and delivered under this Indenture
     (except for Securities authenticated and delivered upon registration of
     transfer of, or in exchange for, or in lieu of, other Securities of the
     series pursuant to Section 304, 305, 306, 906 or 1107);

          (3) whether any Securities of the series are to be issuable initially
     in temporary global form and whether any Securities of the series are to be
     issuable in permanent global form, and, if so, whether beneficial owners of
     interests in any such global Security may exchange such interests for
     Securities of such series and of like tenor of any authorized form and
     denomination and the circumstances under which any such exchanges may
     occur, if other than in the manner provided in Section 203, and the
     Depositary for any global Security or Securities of such series;

          (4) the manner in which any interest payable on a temporary global
     Security on any Interest Payment Date will be paid if other than in the
     manner provided in Section 304;

          (5) the date or dates on which the principal of (and premium, if any,
     on) the Securities of the series is payable or the method of determination
     thereof;

          (6) the rate or rates, or the method of determination thereof, at
     which the Securities of the series shall bear interest, if any, whether and
     under what circumstances Additional Amounts with respect to such Securities
     shall be payable, the date or dates from which such interest shall accrue,
     the Interest Payment Dates on which such interest shall be payable and, if
     other than as set forth in Section 101, the Regular Record Date for the
     interest payable on any Securities on any Interest Payment Date;



                                       17

<PAGE>   26



          (7) the place or places where, subject to the provisions of Section
     1002, the principal of (and premium, if any), any interest on and any
     Additional Amounts with respect to the Securities of the series shall be
     payable;

          (8) the period or periods within which, the price or prices (whether
     denominated in cash, securities or otherwise) at which and the terms and
     conditions upon which Securities of the series may be redeemed, in whole or
     in part, at the option of the Company, if the Company is to have that
     option, and the manner in which the Company must exercise any such option
     if different from those set forth herein;

          (9) the obligation, if any, of the Company to redeem or purchase
     Securities of the series pursuant to any sinking fund or analogous
     provisions or at the option of a Holder thereof and the period or periods
     within which, the price or prices (whether denominated in cash, securities
     or otherwise) at which and the terms and conditions upon which Securities
     of the series shall be redeemed or purchased in whole or in part pursuant
     to such obligation;

          (10) the denomination in which any Securities of that series shall be
     issuable, if other than denominations of $1,000 and any integral multiple
     thereof;

          (11) the currency or currencies (including composite currencies) if
     other than Dollars, or the form, including equity securities, other debt
     securities (including Securities), warrants or any other securities or
     property of the Company or any other Person, in which payment of the
     principal of (and premium, if any), any interest on and any Additional
     Amounts with respect to the Securities of the series shall be payable;

          (12) if the principal of (and premium, if any) or interest on or any
     Additional Amounts with Respect to the Securities of the series are to be
     payable, at the election of the Company or a Holder thereof, in a currency
     or currencies (including composite currencies) other than that in which the
     Securities are stated to be payable, the currency or currencies (including
     composite currencies) in which payment of the principal of (and premium, if
     any) and interest on, and any Additional Amounts with respect to,
     Securities of such series as to which such election is made shall be
     payable, and the periods within which and the terms and conditions upon
     which such election is to be made;

          (13) if the amount of payments of principal of (and premium, if any),
     any interest on and any Additional Amounts with respect to the Securities
     of the series may be determined with reference to any commodities,
     currencies or indices, values, rates or prices or any other index or
     formula, the manner in which such amounts shall be determined;

          (14) if other than the entire principal amount thereof, the portion of
     the principal amount of Securities of the series which shall be payable
     upon declaration of acceleration of the Maturity thereof pursuant to
     Section 502;


                                       18

<PAGE>   27



          (15) any additional means of satisfaction and discharge of this
     Indenture with respect to Securities of the series pursuant to Section 401,
     any additional conditions to discharge pursuant to Section 401 or 403 and
     the application, if any, of Section 403;

          (16) any deletions or modifications of or additions to the definitions
     set forth in Section 101, the Events of Default set forth in Section 501 or
     covenants of the Company set forth in Article Ten pertaining to the
     Securities of the series;

          (17) if the Securities of the series are to be convertible into or
     exchangeable for equity securities, other debt securities (including
     Securities), warrants or any other securities or property of the Company or
     any other Person, at the option of the Company or the Holder or upon the
     occurrence of any condition or event, the terms and conditions for such
     conversion or exchange; and

          (18) any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Indenture).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to the Board Resolution referred to above and (subject to Section 303) set
forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.

          At the option of the Company, interest on the Securities of any series
that bears interest may be paid by mailing a check to the address of any Holder
as such address shall appear in the Security Register.

          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
together with such Board Resolution shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Officers' Certificate setting forth the terms of the series.

SECTION 302.  Denominations.

          The Securities of each series shall be issuable in such denominations
as shall be specified as contemplated by Section 301. In the absence of any such
provisions with respect to the Securities of any series, the Securities of such
series denominated in Dollars shall be issuable in denominations of $1,000 and
any integral multiple thereof. Unless otherwise provided as contemplated by
Section 301 with respect to any series of Securities, any Securities of a series
denominated in a currency other than Dollars shall be issuable in denominations
that are the equivalent, as determined by the Company by reference to the noon
buying rate in The City of New York for cable transfers for such currency, as
such rate is reported or otherwise made available by the Federal Reserve Bank of
New York, on the applicable issue date for such Securities, of $1,000 and any
integral multiple thereof.


                                       19

<PAGE>   28


SECTION 303.  Execution, Authentication, Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its President, its Treasurer or one of its Vice
Presidents, under its corporate seal reproduced thereon or affixed thereto
attested by its Secretary or one of its Assistant Secretaries. The signature of
any of these officers on the Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company to the Trustee for authentication, together with a Company Order for the
authentication and delivery of such Securities, and the Trustee in accordance
with the Company Order shall authenticate and deliver such Securities as in this
Indenture provided and not otherwise.

          If the form or terms of the Securities of the series have been
established in or pursuant to one or more Board Resolutions or any other method
permitted by Sections 201 and 301, in authenticating such Securities, and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to
Section 601) shall be fully protected in relying upon, an Opinion of Counsel
stating,

          (a) if the form of such Securities has been established by or pursuant
     to Board Resolution as permitted by Section 201, that such form has been
     established in conformity with the provisions of this Indenture;

          (b) if the terms of such Securities have been established by or
     pursuant to Board Resolution as permitted by Section 301, that such terms
     have been established in conformity with the provisions of this Indenture;
     and

          (c) that such Securities, when authenticated and delivered by the
     Trustee and issued by the Company in the manner and subject to any
     conditions specified in such Opinion of Counsel, will constitute legal,
     valid and binding obligations of the Company, enforceable in accordance
     with their terms, except as such enforcement is subject to the effect of
     (i) bankruptcy, insolvency, fraudulent conveyance, reorganization or other
     laws relating to or affecting creditors' rights and (ii) general principles
     of equity (regardless of whether such enforcement is considered in a
     proceeding in equity or at law).

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.


                                       20

<PAGE>   29



          Each Security shall be dated the date of its authentication.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security, a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has been duly authenticated and delivered hereunder. Notwithstanding the
foregoing, if any Security shall have been authenticated and delivered hereunder
but never issued and sold by the Company, and the Company shall deliver such
Security to the Trustee for cancellation as provided in Section 309 together
with a written statement (which need not comply with Section 103 and need not be
accompanied by an Opinion of Counsel) stating that such Security has never been
issued and sold by the Company, for all purposes of this Indenture such Security
shall be deemed never to have been authenticated and delivered hereunder and
shall never be entitled to the benefits of this Indenture.

SECTION 304.  Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued, in registered form and with such appropriate insertions, omissions,
substitutions and other variations as the officers of the Company executing such
Securities may determine, as evidenced by their execution of such Securities.

          Except in the case of temporary Securities in global form (which shall
be exchanged in accordance with the provisions of the following paragraphs), if
temporary Securities of any series are issued, the Company will cause definitive
Securities of that series to be prepared without unreasonable delay. After the
preparation of definitive Securities of such series, the temporary Securities of
such series shall be exchangeable for definitive Securities of such series upon
surrender of the temporary Securities of such series at the office or agency of
the Company in a Place of Payment for that series, without charge to the Holder.
Upon surrender for cancellation of any one or more temporary Securities of any
series, the Company shall execute and the Trustee shall authenticate and deliver
in exchange therefor a like principal amount of definitive Securities of the
same series of authorized denominations. Until so exchanged the temporary
Securities of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of such series.

          All Outstanding temporary Securities of any series shall in all
respects be entitled to the same benefits under this Indenture as definitive
Securities of the same series and of like tenor authenticated and delivered
hereunder.


                                       21

<PAGE>   30


SECTION 305.  Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept for each series of Securities at
one of the offices or agencies maintained pursuant to Section 1002 a register
(the register maintained in such office and in any other office or agency of the
Company in a Place of Payment being herein sometimes collectively referred to as
the "Security Register") in which, subject to such reasonable regulations as it
may prescribe, the Company shall provide for the registration of Securities and
of transfers of Securities of such series. The Trustee is hereby initially
appointed "Security Registrar" for the purpose of registering Securities and
transfers of Securities as herein provided.

          Except as set forth in Section 203 or as may be provided pursuant to
Section 301, upon surrender for registration of transfer of any Security of any
series at the office or agency in a Place of Payment for that series, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Securities of
the same series and of like tenor, of any authorized denominations and of a like
aggregate principal amount.

          At the option of the Holder, Securities of any series may be exchanged
for other Securities of the same series and of like tenor, of any authorized
denominations and of a like aggregate principal amount, upon surrender of the
Securities to be exchanged at such office or agency. Whenever any Securities are
so surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Securities which the Holder making the exchange is
entitled to receive.

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

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company or the Trustee) be duly
endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than exchange
pursuant to Section 304, 906 or 1107 not involving any transfer.

          The Company shall not be required (i) to issue, register the transfer
of or exchange Securities of any series during a period beginning at the opening
of business 15 days before the day of the mailing of a notice of redemption of
Securities of such series selected for redemption and ending at the close of
business on the day of the mailing of the relevant notice of redemption or (ii)


                                       22

<PAGE>   31


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

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any Security
and (ii) such security or indemnity as may be required by them to save each of
them and any agent of either of them harmless, then, in the absence of notice to
the Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and upon its request the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Security, pay such Security.

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

          Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities of that series duly issued hereunder.

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

SECTION 307.  Payment of Interest; Interest Rights Preserved.

          Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for such interest. Unless
otherwise provided with respect to the Securities of any series, payment of
interest may be made at the option of the Company by check mailed or delivered
to the address of any Person entitled thereto as such address shall appear in
the Security Register.


                                       23

<PAGE>   32


          Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in clause (1) or (2) below:

          (1) The Company may elect to make payment of any Defaulted Interest to
     the Persons in whose names the Securities of such series (or their
     respective Predecessor Securities) are registered at the close of business
     on a Special Record Date for the payment of such Defaulted Interest, which
     shall be fixed in the following manner. The Company shall notify the
     Trustee in writing of the amount of Defaulted Interest proposed to be paid
     on each Security of such series and the date of the proposed payment, and
     at the same time the Company shall deposit with the Trustee an amount of
     money equal to the aggregate amount proposed to be paid in respect of such
     Defaulted Interest or shall make arrangements satisfactory to the Trustee
     for such deposit prior to the date of the proposed payment, such money when
     deposited to be held in trust for the benefit of the Persons entitled to
     such Defaulted Interest as in this Clause provided. Thereupon the Trustee
     shall fix a Special Record Date for the payment of such Defaulted Interest
     which shall be not more than 15 days and not less than 10 days prior to the
     date of the proposed payment and not less than 10 days after the receipt by
     the Trustee of the notice of the proposed payment. The Trustee shall
     promptly notify the Company of such Special Record Date and, in the name
     and at the expense of the Company, shall cause notice of the proposed
     payment of such Defaulted Interest and the Special Record Date therefor to
     be mailed, first-class postage prepaid, to each Holder of Securities of
     such series at his address as it appears in the Security Register, not less
     than 10 days prior to such Special Record Date. The Trustee may, in its
     discretion, in the name and at the expense of the Company, cause a similar
     notice to be published at least once in an Authorized Newspaper, but such
     publication shall not be a condition precedent to the establishment of such
     Special Record Date. Notice of the proposed payment of such Defaulted
     Interest and the Special Record Date therefor having been so mailed, such
     Defaulted Interest shall be paid to the Persons in whose names the
     Securities of such series (or their respective Predecessor Securities) are
     registered at the close of business on such Special Record Date and shall
     no longer be payable pursuant to the following clause (2).

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

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


                                       24

<PAGE>   33


SECTION 308.  Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of (and premium, if
any) and (subject to Sections 305 and 307) interest on such Security and for all
other purposes whatsoever, whether or not such Security be overdue, and neither
the Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by notice to the contrary.

SECTION 309.  Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee.
All Securities so delivered shall be promptly cancelled by the Trustee. The
Company may at any time deliver to the Trustee for cancellation any Securities
previously authenticated and delivered hereunder which the Company may have
acquired in any manner whatsoever, and all Securities so delivered shall be
promptly cancelled by the Trustee. No Securities shall be authenticated in lieu
of or in exchange for any Securities cancelled as provided in this Section,
except as expressly permitted by this Indenture. All cancelled Securities held
by the Trustee shall be disposed of as directed by a Company Order; provided
that the Trustee shall not be required to destroy such Securities.

SECTION 310.  Computation of Interest.

          Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a year of twelve 30- day months.

SECTION 311.  CUSIP Numbers.

          The Company in issuing the Securities may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in notices
of redemption as a convenience to Holders; provided that any such notice may
state that no representation is made as to the correctness of such numbers
either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be affected
by any defect in or omission of such numbers.


                                       25

<PAGE>   34


                                  ARTICLE FOUR

                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture.

          This Indenture shall upon Company Request cease to be of further
effect with respect to Securities of a series, and the Trustee, at the expense
of the Company, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture with respect to Securities of such series, when

          (1) either

               (A) all Securities of such series theretofore authenticated and
          delivered (other than (i) Securities which have been destroyed, lost
          or stolen and which have been replaced or paid as provided in Section
          306, and (ii) Securities for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

               (B) with respect to all Outstanding Securities of such series not
          theretofore delivered to the Trustee for cancellation, the Company has
          deposited or caused to be deposited with the Trustee as trust funds,
          under the terms of an irrevocable trust agreement in form and
          substance satisfactory to the Trustee, money or U.S. Government
          Obligations maturing as to principal and interest in such amounts and
          at such times as will (together with the income to accrue thereon and
          without consideration of any reinvestment thereof) be sufficient to
          pay and discharge (with such delivery in trust to be for the stated
          purpose of paying and discharging) the entire indebtedness on all
          Outstanding Securities of such series not theretofore delivered to the
          Trustee for cancellation for principal (and premium and Additional
          Amounts, if any) and interest to the Stated Maturity or any Redemption
          Date contemplated by the penultimate paragraph of this Section, as the
          case may be; or

               (C) the Company has properly fulfilled such other means of
          satisfaction and discharge as is specified, as contemplated by Section
          301, to be applicable to the Securities of such series;

          (2) the Company has paid or caused to be paid all other sums payable
     hereunder by the Company with respect to the Outstanding Securities of such
     series;

          (3) the Company has complied with any other conditions specified
     pursuant to Section 301 to be applicable to the discharge of Securities of
     such series pursuant to this Section 401;


                                       26

<PAGE>   35


          (4) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the satisfaction and discharge of this
     Indenture with respect to the Outstanding Securities of such series have
     been complied with;

          (5) if the conditions set forth in Section 401(1)(A) have not been
     satisfied, and unless otherwise specified pursuant to Section 301 for the
     Securities of such series, the Company has delivered to the Trustee an
     Opinion of Counsel to the effect that the Holders of Securities of such
     series will not recognize income, gain or loss for United States federal
     income tax purposes as a result of such deposit, satisfaction and discharge
     and will be subject to United States federal income tax on the same amount
     and in the same manner and at the same time as would have been the case if
     such deposit, satisfaction and discharge had not occurred; and

          (6) no Default or Event of Default with respect to the Securities of
     such issue shall have occurred and be continuing on the date of such
     deposit or, insofar as clauses (5) or (6) of Section 501 are concerned, at
     any time in the period ending on the 91st day after the date of such
     deposit (it being understood that this condition shall not be deemed
     satisfied until the expiration of such period).

          For the purposes of this Indenture, "U.S. Government Obligations"
means direct non-callable obligations of, or non-callable obligations the
payment of principal of and interest on which is guaranteed by, the United
States of America, or to the payment of which obligations or guarantees the full
faith and credit of the United States of America is pledged, or beneficial
interests in a trust the corpus of which consists exclusively of money or such
obligations or a combination thereof.

          If any Outstanding Securities of such series are to be redeemed prior
to their Stated Maturity, whether pursuant to any optional redemption provisions
or in accordance with any mandatory sinking fund requirement, the trust
agreement referred to in subclause (B) of clause (1) of this Section shall
provide therefor and the Company shall make such arrangements as are
satisfactory to the Trustee for the giving of notice of redemption by the
Trustee in the name, and at the expense, of the Company.

          Notwithstanding the satisfaction and discharge of this Indenture with
respect to the Outstanding Securities of such series pursuant to this Section
401, the obligations of the Company to the Trustee under Section 607, the
obligations to any Authenticating Agent under Section 614 and, except for a
discharge pursuant to subclause (A) of clause (1) of this Section, the
obligations of the Company under Sections 305, 306, 404, 610(e), 701, 1001 and
1002 and the obligations of the Trustee under Section 402 and the last paragraph
of Section 1003 shall survive.


                                       27

<PAGE>   36


SECTION 402.  Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest and Additional Amounts for the payment of which such money has
been deposited with the Trustee.

SECTION 403.  Discharge of Liability on Securities of Any Series.

          If this Section is specified, as contemplated by Section 301, to be
applicable to Securities of any series, the Company shall be deemed to have paid
and discharged the entire indebtedness on all the Outstanding Securities of such
series, the obligation of the Company under this Indenture and the Securities of
such series to pay the principal of (and premium, if any) and interest on and
any Additional Amounts with respect to Securities of such series, shall cease,
terminate and be completely discharged and the Trustee, at the expense of the
Company, shall execute proper instruments acknowledging such satisfaction and
discharge, when

          (1) the Company has complied with the provisions of Section 401 (other
     than any additional conditions specified pursuant to Sections 301 and
     401(3) and except that the Opinion of Counsel referred to in Section 401(5)
     shall state that it is based on a ruling by the Internal Revenue Service or
     other change since the date hereof under applicable Federal income tax law)
     with respect to all Outstanding Securities of such series,

          (2) the Company has delivered to the Trustee a Company Request
     requesting such satisfaction and discharge,

          (3) the Company has complied with any other conditions specified
     pursuant to Section 301 to be applicable to the discharge of Securities of
     such series pursuant to this Section 403, and

          (4) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the discharge of the indebtedness on the
     Outstanding Securities of such series have been complied with.

          Upon the satisfaction of the conditions set forth in this Section with
respect to all the Outstanding Securities of any series, the terms and
conditions of such series, including the terms and conditions with respect
thereto set forth in this Indenture, shall no longer be binding upon, or
applicable to, the Company; provided that, the Company shall not be discharged
from any payment obligations in respect of Securities of such series which are
deemed not to be Outstanding under clause (iii) of the definition thereof if
such obligations continue to be valid obligations of the Company under
applicable law or pursuant to Section 305 or 306.


                                       28

<PAGE>   37


SECTION 404.  Applicability of Defeasance Provisions; Company's Option to Effect
              Defeasance or Covenant Defeasance.

          Except as otherwise specified as contemplated by Section 301 for the
Securities of any series, the provisions of Sections 404 through 410 inclusive,
with such modifications thereto as may be specified pursuant to Section 301 with
respect to any series of Securities, shall be applicable to the Securities.

SECTION 405.  Defeasance and Discharge.

          On and after the date on which the conditions set forth in Section 407
are satisfied with respect to the Securities of any series, the Company shall be
deemed to have paid and been discharged from its obligations with respect to
such Securities (hereinafter "defeasance"). For this purpose, such defeasance
means that the Company shall be deemed to have paid and discharged the entire
indebtedness represented by such Securities which shall thereafter be deemed to
be "Outstanding" only for the purposes of Section 408 and the other Sections of
this Indenture referred to in clause (ii) of this Section, and to have satisfied
all its other obligations under such Securities and this Indenture insofar as
such Securities are concerned (and the Trustee, upon payment of all amounts due
it under Section 607, at the expense of the Company, shall on a Company Order
execute proper instruments acknowledging the same), except the following which
shall survive until otherwise terminated or discharged hereunder: (i) the rights
of Holders of such Securities to receive, solely from the trust funds described
in Section 407(a) and as more fully set forth in such Section, payments in
respect of the principal of, premium, if any, and interest, if any, on such
Securities when such payments are due; (ii) the Company's obligations with
respect to such Securities under Sections 305, 309, 1002 and 1003 and with
respect to the payment of Additional Amounts, if any, payable with respect to
such Securities as specified pursuant to clause (13) of Section 301; (iii) the
Company's obligations with respect to a conversion or exchange of such
Securities; (iv) the rights, powers, trusts, duties and immunities of the
Trustee hereunder; and (v) this Article Four. Subject to compliance with this
Article Four, the Company may defease the Securities of any series under this
Section 405 notwithstanding a prior covenant defeasance (as defined herein)
under Section 406 with respect to such Securities. Following a defeasance,
payment of such Securities may not be accelerated because of an Event of
Default.

SECTION 406.  Covenant Defeasance.

          On and after the date on which the conditions set forth in Section 407
(other than Section 407(c)) are satisfied with respect to the Securities of or
within any series, (i) the Company shall be released from its obligations under
Sections 801 and 1004 and, if specified pursuant to Section 301, its obligations
under any other covenant, with respect to such Securities and (ii) the
occurrence of any event specified in clauses (4) and (7) of Section 501 (with
respect to any of the obligations described in clause (i) above) shall be deemed
not to be or result in an Event of Default (hereinafter, "covenant defeasance"),
and such Securities shall thereafter be deemed to be not "Outstanding" for the
purposes of any request, demand, authorization, direction, notice, waiver,
consent or declaration or Act of Holders (and the consequences of any thereof)
in connection with


                                       29

<PAGE>   38


Section 801 or Section 1004, such other covenant specified pursuant to Section
301, but shall continue to be deemed "Outstanding" for all other purposes
hereunder. For this purpose, such covenant defeasance means that, with respect
to such Securities, the Company may omit to comply with and shall have no
liability in respect of any term, condition or limitation set forth in any such
Section or such other covenant, whether directly or indirectly, by reason of any
reference elsewhere herein to any such Section or such other covenant or by
reason of reference in any such Section or such other covenant to any other
provision herein or in any other document and such omission to comply shall not
constitute a Default or an Event of Default under clauses (4) and (7) of Section
501 or otherwise, as the case may be, but, except as specified above the
remainder of this Indenture and such Securities and any interest coupons
appertaining thereto shall be unaffected thereby.

SECTION 407.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to application of Section 405 or
Section 406 to any Securities of any series:

          (a) the Company shall have deposited or caused to be deposited
irrevocably with the Trustee (or another trustee satisfying the requirements of
Section 609 who shall agree to comply with, and shall be entitled to the
benefits of, the provisions of Sections 404 through 410 inclusive and the last
paragraph of Section 1003 applicable to the Trustee, for purposes of such
Sections also a "Trustee") as trust funds in trust for the purpose of making the
payments referred to in clauses (x) and (y) of this Section 407(a), specifically
pledged as security for, and dedicated solely to, the benefit of the Holders of
such Securities, with written instructions to the Trustee as to the application
thereof, (A) money in an amount (in such currency, currencies or currency unit
or units in which such Securities are then specified as payable at Stated
Maturity), or (B) if Securities of such series are not subject to repayment at
the option of Holders, Government Obligations which through the payment of
interest and principal in respect thereof in accordance with their terms will
provide, not later than one day before the due date of any payment referred to
in clause (x) or (y) of this Section 407(a), money in an amount or (C) a
combination thereof in an amount, sufficient, in the opinion of a nationally
recognized firm of independent certified public accountants or a nationally
recognized investment banking firm expressed in a written certification thereof
delivered to the Trustee, to pay and discharge, and which shall be applied by
the Trustee to pay and discharge, (x) the principal of, premium, if any, and
interest, if any, on such Securities on the Stated Maturity of such principal or
installment of principal or interest and (y) any mandatory sinking fund payments
applicable to such Securities on the date on which such payments are due and
payable in accordance with the terms of this Indenture and such Securities.
Before such a deposit the Company may make arrangements satisfactory to the
Trustee for the redemption of Securities at a future date or dates in accordance
with Article Eleven which shall be given effect in applying the foregoing.

          (b) No Default or Event of Default with respect to the Securities of
that series shall have occurred or be continuing on the date of such a deposit
or shall occur as a result of such a deposit or, insofar as clauses (5) and (6)
of Section 501 are concerned, shall occur at any time during the period ending
on the 91st day after the date of such deposit.


                                       30

<PAGE>   39


          (c) In the case of an election under Section 405, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel
to the effect that (i) the Company has received from or there has been published
by, the Internal Revenue Service a ruling, or (ii) since the date of execution
of this Indenture, there has been a change in the applicable U.S. Federal income
tax law, in either case to the effect that, and based thereon such opinion shall
confirm that, the Holders of such Securities and any interest coupons
appertaining thereto will not recognize income, gain or loss for U.S. Federal
income tax purposes as a result of such defeasance and will be subject to U.S.
Federal income tax on the same amount and in the same manner and at the same
times, as would have been the case if such deposit, defeasance and discharge had
not occurred.

          (d) In the case of an election under Section 406, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel
to the effect that the Holders of such Securities and any interest coupons
appertaining thereto will not recognize income, gain or loss for U.S. Federal
income tax purposes as a result of such covenant defeasance and will b subject
to U.S. Federal income tax on the same amount and in the same manner and at the
same times, as would have been the case if such deposit and covenant defeasance
had not occurred.

          (e) The Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent to the defeasance under Section 405 or the covenant defeasance under
Section 406 (as the case may be) have been complied with.

          (f) Such defeasance or covenant defeasance shall be effected in
compliance with any additional or substitute terms, conditions or limitations
which may be imposed on the Company in connection therewith as contemplated by
Section 301.

          (g) At the time of such deposit: (A) no Default in the payment of
principal of (or premium, if any) or interest on any Senior Debt shall have
occurred and be continuing or (B) no other Event of Default with respect to any
Senior Debt shall have occurred and be continuing and shall have resulted in
such Senior Debt becoming or being declared due and payable prior to the date on
which it would otherwise have become due and payable, or, in the case of either
clause (A) or clause (B) above, each such Default or Event of Default shall have
been cured or waived or shall have ceased to exist.

SECTION 408.  Deposited Money and Government Obligations to be Held in Trust.

          Subject to the provisions of the last paragraph of Section 1003, all
money and Government Obligations (or other property as may be provided pursuant
to Section 301) (including the proceeds thereof) deposited with the Trustee
pursuant to Section 407 in respect of any Securities of any series shall be held
in trust and applied by the Trustee, in accordance with the provisions of such
Securities and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Holders of such Securities of all sums due and to
become due thereon in respect of principal, premium, if any, and interest, if
any, but such money need not be segregated from other funds except as provided
herein and except to the extent required by law.


                                       31

<PAGE>   40



SECTION 409.  Repayment to Company.

          The Trustee (and any Paying Agent) shall promptly pay to the Company
upon Company Request any excess money or securities held by them at any time.

          The provisions of the last paragraph of Section 1003 shall apply to
any money or securities held by the Trustee or any Paying Agent under this
Article Four that remain unclaimed for two years after the Maturity of any
series of Securities for which money or securities have been deposited pursuant
to Section 407(a).

SECTION 410.  Indemnity for Government Obligations.

          The Company shall pay, and shall indemnify the Trustee against, any
tax, fee or other charge imposed on or assessed against Government Obligations
deposited pursuant to this Article or the principal and interest and any other
amount received on such Government Obligations.

SECTION 411.  Reinstatement.

          If the Trustee or Paying Agent is unable to apply any money or U.S.
Government Obligations deposited with respect to Securities of any series in
accordance with Section 401 or Section 407 by reason of any legal proceeding or
by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture with respect to the Securities of such series
and the Securities of such series shall be revived and reinstated as though no
deposit had occurred pursuant to Section 401 or Section 407 until such time as
the Trustee or Paying Agent is permitted to apply all such money or U.S.
Government Obligations in accordance with Section 401 or Section 407; provided,
however, that if the Company has made any payment of principal of (or premium,
if any), or interest on or any Additional Amounts with respect to any Securities
because of the reinstatement of its obligations, the Company shall be subrogated
to the rights of the Holders of such Securities to receive such payment from the
money or U.S. Government Obligations held by the Trustee or Paying Agent.

                                  ARTICLE FIVE

                                    REMEDIES

SECTION 501.  Events of Default.

          "Event of Default," wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be effected
by operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body),
unless it is either inapplicable to a particular series or it is specifically
deleted or modified in


                                       32

<PAGE>   41


or pursuant to the supplemental indenture or Board Resolution establishing such
series of Securities or in the form of Security for such series:

          (1) default in the payment of any interest on or any Additional
     Amounts with respect to any Security of that series when such interest or
     Additional Amounts become due and payable, and continuance of such default
     for a period of 30 days; or

          (2) default in the payment of the principal of (or premium, if any,
     on) any Security of that series at its Maturity; or

          (3) default in the deposit of any mandatory sinking fund payment, when
     and as due by the terms of a Security of that series and continuance of
     such default for a period of 30 days; or

          (4) default in the performance or breach of any covenant or warranty
     of the Company in this Indenture (other than a covenant or warranty a
     default in whose performance or whose breach is elsewhere in this Section
     specifically dealt with or which has expressly been included in this
     Indenture solely for the benefit of one or more series of Securities other
     than that series), and continuance of such default or breach for a period
     of 90 days after there has been given, by registered or certified mail, to
     the Company by the Trustee or to the Company and the Trustee by the Holders
     of at least 25% in principal amount of all Outstanding Securities a written
     notice specifying such default or breach and requiring it to be remedied
     and stating that such notice is a "Notice of Default" hereunder; or

          (5) the entry by a court having jurisdiction in the premises of (A) a
     decree or order for relief in respect of the Company in an involuntary case
     or proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or (B) a decree or order adjudging the
     Company a bankrupt or insolvent, or approving as properly filed a petition
     seeking reorganization, arrangement, adjustment or composition of or in
     respect of the Company under any applicable Federal or State law, or
     appointing a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any substantial
     part of its property, or ordering the winding up or liquidation of its
     affairs, and the continuance of any such decree or order for relief or any
     such other decree or order unstayed and in effect for a period of 90
     consecutive days; or

          (6) the commencement by the Company of a voluntary case or proceeding
     under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or to the commencement of
     any bankruptcy or insolvency case or proceeding against it, or the filing
     by it, of a petition or answer or consent seeking reorganization or relief
     under any applicable Federal or State law, or the consent by it to the


                                       33

<PAGE>   42



     filing of such petition or to the appointment of or taking possession by a
     custodian, receiver, liquidator, assignee, trustee, sequestrator or similar
     official of the Company or of any substantial part of its property, or the
     making by it of an assignment for the benefit of creditors, or the
     admission by it in writing of its inability to pay its debts generally as
     they become due, or the taking of corporate action by the Company in
     furtherance of any such action; or

          (7) any other Event of Default provided with respect to Securities of
     that series.

          Notwithstanding the foregoing provisions of this Section 501, if the
principal of (and premium, if any) or any interest on, or Additional Amounts
with respect to, any Security is payable in a currency or currencies (including
a composite currency) other than Dollars and such currency (or currencies) is
(or are) not available to the Company for making payment thereof due to the
imposition of exchange controls or other circumstances beyond the control of the
Company (a "Conversion Event"), the Company will be entitled to satisfy its
obligations to Holders of the Securities by making such payment in Dollars in an
amount equal to the Dollar equivalent of the amount payable in such other
currency, as determined by the Company by reference to the noon buying rate in
The City of New York for cable transfers for such currency ("Exchange Rate"), as
such Exchange Rate is certified for customs purposes by the Federal Reserve Bank
of New York on the date of such payment, or, if such rate is not then available,
on the basis of the most recently available Exchange Rate. Notwithstanding the
foregoing provisions of this Section 501, any payment made under such
circumstances in Dollars where the required payment is in a currency other than
Dollars will not constitute an Event of Default under this Indenture.

          Promptly after the occurrence of a Conversion Event with respect to
Securities of any series, the Company shall give written notice thereof to the
Trustee; and the Trustee, promptly after receipt of such notice, shall give
notice thereof in the manner provided in Section 107 to the Holders of such
series. Promptly after the making of any payment in Dollars as a result of a
Conversion Event with respect to Securities of any series, the Company shall
give notice in the manner provided in Section 107 to the Holders of such series,
setting forth the applicable Exchange Rate and describing the calculation of
such payments.

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default with respect to any Securities of any series at
the time Outstanding occurs and is continuing, then in every such case the
Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of (i) the series affected by such default (in the case
of an Event of Default described in clause (1), (2), (3) or (7) of Section 501)
or (ii) all series of Securities (subject to the immediately following sentence,
in the case of an Event of Default described in clause (4) of Section 501) may
declare the principal amount (or, if any such Securities are Original Issue
Discount Securities, such portion of the principal amount as may be specified in
the terms of that series) of all of the Securities of the series affected by
such default or all series, as the case may be, to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified


                                       34

<PAGE>   43


amount) shall become immediately due and payable. If an Event of Default
described in clause (5) or (6) of Section 501 shall occur, the principal amount
of the Outstanding Securities of all series ipso facto shall become and be
immediately due and payable without any declaration or other act on the part of
the Trustee or any Holder.

          At any time after such a declaration of acceleration with respect to
Securities of any series (or of all series, as the case may be) has been made
and before a judgment or decree for payment of the money due has been obtained
by the Trustee as hereinafter in this Article provided, the Holders of a
majority in principal amount of the Outstanding Securities of that series (or of
all series, as the case may be), by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

          (1) the Company has paid or deposited with the Trustee a sum
     sufficient to pay

               (A) all overdue interest on, and any Additional Amounts with 
          respect to, all Securities of that series (or of all series, as the
          case may be),

               (B) the principal of (and premium, if any, on) any Securities of
          that series (or of all series, as the case may be) which have become
          due otherwise than by such declaration of acceleration and interest
          thereon at the rate or rates prescribed therefor in such Securities
          (in the case of Original Issue Discount Securities, the Securities'
          Yield to Maturity),

               (C) to the extent that payment of such interest is lawful,
          interest upon overdue interest and any Additional Amounts at the rate
          or rates prescribed therefor in such Securities (in the case of
          Original Issue Discount Securities, the Securities' Yield to
          Maturity), and

               (D) all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel;

         and

          (2) all Events of Default with respect to Securities of that series
     (or of all series, as the case may be), other than the non-payment of the
     principal of Securities of that series (or of all series, as the case may
     be) which have become due solely by such declaration of acceleration, have
     been cured or waived as provided in Section 512.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

                  The Company covenants that if


                                       35

<PAGE>   44


          (1) default is made in the payment of any installment of interest on,
     or any Additional Amounts with respect to, any Security of any series when
     such interest or Additional Amounts shall have become due and payable and
     such default continues for a period of 30 days, or

          (2) default is made in the payment of the principal of (or premium, if
     any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and Additional
Amounts and, to the extent that payment of such interest shall be legally
enforceable, interest on any overdue principal (and premium, if any) and on any
overdue interest and Additional Amounts, at the rate or rates prescribed
therefor in such Securities (or in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity), and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

          If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon such Securities, wherever
situated.

          If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate judicial proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

SECTION 504.  Trustee May File Proofs of Claim.

          In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal (or lesser amount
in the case of Original Issue Discount Securities) of the Securities shall then
be due and payable as therein expressed or by declaration or otherwise and
irrespective of whether the Trustee shall have made any demand on the Company
for the payment of overdue principal (and premium, if any), interest or any
Additional Amounts) shall be entitled and empowered, by intervention in such
proceeding or otherwise,


                                       36

<PAGE>   45


          (i) to file and prove a claim for the whole amount of principal (or
     lesser amount in the case of Original Issue Discount Securities) (and
     premium, if any) and interest and any Additional Amounts owing and unpaid
     in respect of the Securities and to file such other papers or documents as
     may be necessary or advisable in order to have the claims of the Trustee
     (including any claim for the reasonable compensation, expenses,
     disbursements and advances of the Trustee, its agents and counsel) and of
     the Holders allowed in such judicial proceeding, and

          (ii) to collect and receive any monies or other property payable or
     deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 607.

          Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceedings; provided, however,
that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official.

SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or 
              Coupons.

          All rights of action and claim under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without possession of any of the
Securities or the production thereof in any proceeding relating thereto, and any
such proceeding instituted by the Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment shall, after provision
for the payment of the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, be for the ratable benefit of
the Holders of the Securities in respect of which such judgment has been
recovered.

SECTION 506.  Application of Money Collected.

          Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal (or premium,
if any), interest or any Additional Amounts, upon presentation of the
Securities, and the notation thereon of the payment if only partially paid and
upon surrender thereof if fully paid:

          FIRST: To the payment of all amounts due the Trustee under Section
     607;


                                       37

<PAGE>   46


          SECOND: To the payment of the amounts then due and unpaid for
     principal of (and premium, if any) and interest on and any Additional
     Amounts with respect to the Securities in respect of which or for the
     benefit of which such money has been collected, ratably, without preference
     or priority of any kind, according to the amounts due and payable on such
     Securities for principal (and premium, if any), interest and Additional
     Amounts, respectively; and

          THIRD: The balance, if any, to the Person or Persons entitled thereto.

          To the fullest extent allowed under applicable law, if for the purpose
of obtaining judgment against the Company in any court it is necessary to
convert the sum due in respect of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to the Securities of any
series (the "Required Currency") into a currency in which a judgment will be
rendered (the "Judgment Currency"), the rate of exchange used shall be the rate
at which in accordance with normal banking procedures the Trustee could purchase
in The City of New York the Required Currency with the Judgment Currency on the
New York Business Day next preceding that on which final judgment is given.
Neither the Company nor the Trustee shall be liable for any shortfall nor shall
it benefit from any windfall in payments to Holders of Securities under this
Section caused by a change in exchange rates between the time the amount of a
judgment against it is calculated as above and the time the Trustee converts the
Judgment Currency into the Required Currency to make payments under this Section
to Holders of Securities, but payment of such judgment shall discharge all
amounts owed by the Company on the claim or claims underlying such judgment.

SECTION 507.  Limitation on Suits.

          Subject to Section 508, no Holder of any Security of any series shall
have any right to institute any proceeding, judicial or otherwise, with respect
to this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless

          (1) an Event of Default with respect to Securities of such series
     shall have occurred and be continuing and such Holder has previously given
     written notice to the Trustee of such continuing Event of Default;

          (2) the Holders of not less than 25% in principal amount of the
     Outstanding Securities of that series shall have made written request to
     the Trustee to institute proceedings in respect of such Event of Default in
     its own name as Trustee hereunder;

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

          (4) the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and


                                       38

<PAGE>   47


          (5) no direction inconsistent with such written request has been given
     to the Trustee during such 60-day period by the Holders of a majority in
     principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and 
              Interest.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 307) interest on and any Additional Amounts with respect to such
Security on the Stated Maturity or Maturities expressed in such Security (or, in
the case of redemption, on the Redemption Date) and to institute suit for the
enforcement of any such payment, and such rights shall not be impaired or
affected without the consent of such Holder.

SECTION 509.   Restoration of Rights and Remedies.

          If the Trustee or any Holder of any Security has instituted any
proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every
such case the Company, the Trustee and the Holders shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder, and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510.  Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last paragraph
of Section 306, no right or remedy herein conferred upon or reserved to the
Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

SECTION 511.  Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any Securities
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein. Every right and remedy


                                       39

<PAGE>   48


given by this Article or by law to the Trustee or to the Holders may be
exercised from time to time, and as often as may be deemed expedient, by the
Trustee or by the Holders, as the case may be.

SECTION 512.  Control by Holders.

          With respect to Securities of any series, the Holders of a majority in
principal amount of the Outstanding Securities of such series shall have the
right to direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, relating to or arising under an Event of Default described in
clause (1), (2), (3) or (7) of Section 501, and with respect to all Securities
the Holders of a majority in principal amount of all Outstanding Securities
shall have the right to direct the time, method and place of conducting any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, not relating to or arising under such an Event of Default, provided
that in each such case

          (1) such direction shall not be in conflict with any rule of law or
     with this Indenture, and

          (2) the Trustee may take any other action deemed proper by the Trustee
     which is not inconsistent with such direction.

SECTION 513.  Waiver of Past Defaults.

          The Holders of a majority in principal amount of the Outstanding
Securities of any series may on behalf of the Holders of all the Securities of
such series waive any past default hereunder with respect to such series and its
consequences, and the Holders of a majority in principal amount of all
Outstanding Securities may on behalf of the Holders of all Securities waive any
other past default hereunder and its consequences, except in each case a default

          (1) in the payment of the principal of (or premium, if any) or
     interest on, or any Additional Amounts with respect to, any Security, or

          (2) in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security affected.

          Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

          All parties to this Indenture agree, and each Holder of any Security
by his acceptance thereof shall be deemed to have agreed, that any court may in
its discretion require, in any suit for


                                       40

<PAGE>   49


the enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken or omitted by it as Trustee, the filing
by any party litigant in such suit of an undertaking to pay the costs of such
suit, and that such court may in its discretion assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in such suit,
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; but the provisions of this Section shall not apply to any
suit instituted by the Company, to any suit instituted by the Trustee, to any
suit instituted by any Holder, or group of Holders, holding in the aggregate
more than 10% in principal amount of the Outstanding Securities of any series,
or to any suit instituted by any Holder for the enforcement of the payment of
the principal of (or premium, if any) or interest on, or any Additional Amounts
with respect to, any Security on or after the Stated Maturity or Maturities
expressed in such Security (or, in the case of redemption, on or after the
Redemption Date).

SECTION 515.   Waiver of Stay or Extension Laws.

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

                                   ARTICLE SIX

                                   THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

          (a) Except during the continuance of an Event of Default with respect
     to the Securities of any series,

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

               (2) in the absence of bad faith on its part, the Trustee may
          conclusively rely, as to the truth of the statements and the
          correctness of the opinions expressed therein, upon certificates or
          opinions furnished to the Trustee and conforming to the requirements
          of this Indenture; but in the case of any such certificates or
          opinions which by any provision hereof are specifically required to be
          furnished to the Trustee, the Trustee shall be under a duty to examine
          the same to determine whether or not they conform to the requirements
          of this Indenture.


                                       41

<PAGE>   50


          (b) In case an Event of Default has occurred and is continuing with
     respect to the Securities of any series, the Trustee shall exercise such of
     the rights and powers vested in it by this Indenture, and use the same
     degree of care and skill in their exercise, as a prudent man would exercise
     or use under the circumstances in the conduct of his own affairs.

          (c) No provision of this Indenture shall be construed to relieve the
     Trustee from liability for its own negligent action, its own negligent
     failure to act or its own willful misconduct, except that

               (1) this Subsection shall not be construed to limit the effect of
          Subsection (a) of this Section;

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

               (3) the Trustee shall not be liable with respect to any action 
          taken or omitted to be taken by it in good faith in accordance with
          the direction of the Holders of a majority in principal amount of the
          Outstanding Securities of any series or of all series, determined as
          provided in Section 511, relating to the time, method and place of
          conducting any proceeding for any remedy available to the Trustee, or
          exercising any trust or power conferred upon the Trustee, under this
          Indenture with respect to the Securities of such series; and

               (4) no provision of this Indenture shall require the Trustee to 
          expend or risk its own funds or otherwise incur any financial
          liability in the performance of any of its duties hereunder, or in the
          exercise of any of its rights or powers, if it shall have reasonable
          grounds for believing that repayment of such funds or indemnity
          satisfactory to it against such risk or liability is not assured to
          it.

          (d) Whether or not therein expressly so provided, every provision of
     this Indenture relating to the conduct or affecting the liability of or
     affording protection to the Trustee shall be subject to the provisions of
     this Section.

SECTION 602.  Notice of Defaults.

          Within 90 days after the occurrence of any default hereunder with
respect to the Securities of any series, the Trustee shall give notice of such
default hereunder known to the Trustee to all Holders of Securities of such
series in the manner provided in Section 107, unless such default shall have
been cured or waived; provided, however, that, except in the case of a default
in the payment of the principal of (or premium, if any) or interest on, or any
Additional Amounts with respect to, any Security of such series or in the
payment of any sinking fund installment with respect to Securities of such
series, the Trustee shall be protected in withholding such notice if and so long
as the board of directors, the executive committee or a trust committee of
directors or Responsible


                                       42

<PAGE>   51


Officers of the Trustee in good faith determines that the withholding of such
notice is in the interest of the Holders of Securities of such series; and
provided, further, that in the case of any default of the character specified in
Section 501(4) with respect to Securities of such series, no such notice to
Holders shall be given until at least 30 days after the occurrence thereof. For
the purpose of this Section, the term "default" means any event, act or
condition which is, or after notice or lapse of time or both would become, an
Event of Default with respect to Securities of such series.

SECTION 603.  Certain Rights of Trustee.

          Subject to the provisions of Section 601:

          (a) the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon, other evidence of indebtedness or other
     paper or document believed by it to be genuine and to have been signed or
     presented by the proper party or parties;

          (b) any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order and any
     resolution of the Board of Directors may be sufficiently evidenced by a
     Board Resolution;

          (c) whenever in the administration of this Indenture the Trustee shall
     deem it desirable that a matter be proved or established prior to taking,
     suffering or omitting any action hereunder, the Trustee (unless other
     evidence be herein specifically prescribed) may, in the absence of bad
     faith on its part, rely upon an Officers' Certificate;

          (d) the Trustee may consult with counsel and the written advice of
     such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (e) the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders pursuant to this Indenture, unless such Holders shall
     have offered to the Trustee security or indemnity satisfactory to it
     against the costs, expenses and liabilities which might be incurred by it
     in compliance with such request or direction;

          (f) the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon, other evidence of indebtedness or other
     paper or document, but the Trustee, in its discretion, may make such
     further inquiry or investigation into such facts or matters as it may see
     fit, and, if the Trustee shall determine to make such further inquiry or
     investigation, it shall be entitled to examine the books, records and
     premises of the Company, personally or by agent or attorney; and


                                       43

<PAGE>   52


          (g) the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and, except for any Affiliates of the Trustee, the Trustee shall
     not be responsible for any misconduct or negligence on the part of any
     agent or attorney appointed with due care by it hereunder.

SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and the Trustee assumes no responsibility for their correctness.
The Trustee makes no representations as to the validity or sufficiency of this
Indenture or of the Securities. The Trustee shall not be accountable for the use
or application by the Company of Securities or the proceeds thereof.

SECTION 605.  May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to Sections
608 and 613, may otherwise deal with the Company with the same rights it would
have if it were not Trustee, Authenticating Agent, Paying Agent, Security
Registrar or such other agent.

SECTION 606.  Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.

SECTION 607.  Compensation and Reimbursement.

          The Company agrees

          (1) to pay to the Trustee from time to time compensation for all
     services rendered by it hereunder (which compensation shall not be limited
     by any provision of law in regard to the compensation of a trustee of an
     express trust);

          (2) except as otherwise expressly provided herein, to reimburse the
     Trustee upon its request for all reasonable expenses, disbursements and
     advances incurred or made by the Trustee in accordance with any provision
     of this Indenture (including the compensation and the reasonable expenses
     and disbursements of its agents and counsel), except any such expense,
     disbursement or advance as may be attributable to its negligence or bad
     faith; and

          (3) to indemnify the Trustee and each of its directors, officers,
     employees, agents and/or representatives for, and to hold each of them
     harmless against, any loss, liability or expense incurred without
     negligence or bad faith on each of their part, arising out of or in


                                       44

<PAGE>   53


     connection with the acceptance or administration of the trust or trusts
     hereunder, including the costs and expenses of defending themselves against
     any claim or liability in connection with the exercise or performance of
     any of the Trustee's powers or duties hereunder.

          As security for the performance of the obligations of the Company
under this Section, the Trustee shall have a lien prior to the Securities upon
all property and funds held or collected by the Trustee as such, except funds
held in trust for the payment of principal of, premium, if any, or interest, if
any, on, or any Additional Amounts with respect to, particular Securities.

          Any expenses and compensation for any services rendered by the Trustee
after the occurrence of an Event of Default specified in clause (5) or (6) of
Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

          The provisions of this Section shall survive the termination of this
Indenture.

SECTION 608.  Disqualification; Conflicting Interests.

          (a) If the Trustee has or shall acquire any conflicting interest, as
     defined in this Section, with respect to the Securities of any series, it
     shall, within 90 days after ascertaining that it has such conflicting
     interest, either eliminate such conflicting interest or resign with respect
     to the Securities of that series in the manner and with the effect
     hereinafter specified in this Article.

          (b) In the event that the Trustee shall fail to comply with the
     provisions of Subsection (a) of this Section with respect to the Securities
     of any series, the Trustee shall, within 10 days after the expiration of
     such 90-day period, transmit by mail to all Holders of Securities of that
     series, as their names and addresses appear in the Security Register,
     notice of such failure.

          (c) For the purposes of this Section, the term "conflicting interest"
     shall have the meaning specified in Section 310(b) of the Trust Indenture
     Act and the Trustee shall comply with Section 310(b) of the Trust Indenture
     Act; provided that there shall be excluded from the operation of Section
     310(b)(1) of the Trust Indenture Act with respect to the Securities of any
     series any indenture or indentures under which other securities, or
     certificates of interest or participation in other securities, of the
     Company are outstanding, if the requirements for such exclusion set forth
     in Section 310(b)(1) of the Trust Indenture Act are met. For purposes of
     the preceding sentence, the optional provision permitted by the second
     sentence of Section 310(b)(9) of the Trust Indenture Act shall be
     applicable.

SECTION 609.  Corporate Trustee Required; Eligibility.

          There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States of
America, any State thereof or the District


                                       45

<PAGE>   54


of Columbia, authorized under such laws to exercise corporate trust powers,
having a combined capital and surplus of at least $50,000,000 and subject to
supervision or examination by Federal or State or District of Columbia
authority. If such corporation publishes reports of condition at least annually,
pursuant to law or to the requirements of said supervising or examining
authority, then for the purposes of this Section, the combined capital and
surplus of such corporation shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at
any time the Trustee shall cease to be eligible in accordance with the
provisions of this Section, it shall resign immediately in the manner and with
the effect hereinafter specified in this Article.

          The Indenture shall always have a Trustee who satisfies the
requirements of Sections 310(a)(1), 310(a)(2) and 310(a)(5) of the Trust
Indenture Act.

SECTION 610.  Resignation and Removal; Appointment of Successor.

          (a) No resignation or removal of the Trustee and no appointment of a
     successor Trustee pursuant to this Article shall become effective until the
     acceptance of appointment by the successor Trustee in accordance with the
     applicable requirements of Section 611.

          (b) The Trustee may resign at any time with respect to the Securities
     of one or more series by giving written notice thereof to the Company. If
     the instrument of acceptance by a successor Trustee required by Section 611
     shall not have been delivered to the resigning Trustee within 30 days after
     the giving of such notice of resignation, the resigning Trustee may
     petition any court of competent jurisdiction for the appointment of a
     successor Trustee with respect to the Securities of such series.

          (c) The Trustee may be removed at any time with respect to the
     Securities of any series by Act of the Holders of a majority in principal
     amount of the Outstanding Securities of such series, delivered to the
     Trustee and to the Company.

          (d) If at any time:

               (1) the Trustee shall fail to comply with Section 608(a) after
          written request therefor by the Company or by any Holder who has been
          a bona fide Holder of a Security for at least six months, or

               (2) the Trustee shall cease to be eligible under Section 609 and
          shall fail to resign after written request therefor by the Company or
          by any such Holder of Securities, or

               (3) the Trustee shall become incapable of acting or shall be
          adjudged a bankrupt or insolvent or a receiver of the Trustee or of
          its property shall be appointed or any public officer shall take
          charge or control of the Trustee or of its property or affairs for the
          purpose of rehabilitation, conservation or liquidation,


                                       46

<PAGE>   55


          then, in any such case, (i) the Company by a Board Resolution may
          remove the Trustee with respect to all Securities, or (ii) subject to
          Section 513, any Holder who has been a bona fide Holder of a Security
          for at least six months may, on behalf of himself and all others
          similarly situated, petition any court of competent jurisdiction for
          the removal of the Trustee with respect to all Securities and the
          appointment of a successor Trustee or Trustees.

          (e) If the Trustee shall resign, be removed or become incapable of
     acting, or if a vacancy shall occur in the office of Trustee for any cause,
     with respect to the Securities of one or more series, the Company, by a
     Board Resolution, shall promptly appoint a successor Trustee or Trustees
     with respect to the Securities of that or those series (it being understood
     that any such successor Trustee may be appointed with respect to the
     Securities of one or more or all of such series and that at any time there
     shall be only one Trustee with respect to the Securities of any particular
     series) and such successor Trustee or Trustees shall comply with the
     applicable requirements of Section 611. If no successor Trustee with
     respect to the Securities of any series shall have been so appointed by the
     Company and accepted appointment in the manner required by Section 611, any
     Holder who has been a bona fide Holder of a Security of such series for at
     least six months may, on behalf of himself and all others similarly
     situated, petition any court of competent jurisdiction for the appointment
     of a successor Trustee with respect to the Securities of such series.

          (f) The Company shall give notice of each resignation and each removal
     of the Trustee with respect to the Securities of any series and each
     appointment of a successor Trustee with respect to the Securities of any
     series by mailing written notice of such event by first-class mail, postage
     prepaid, to all Holders of Securities of such series as their names and
     addresses appear in the Security Register. Each notice shall include the
     name of the successor Trustee with respect to the Securities of such series
     and the address of its Corporate Trust Office.

SECTION 611.  Acceptance of Appointment by Successor.

          (a) In case of the appointment hereunder of a successor Trustee with
     respect to all Securities, every such successor Trustee so appointed shall
     execute, acknowledge and deliver to the Company and to the retiring Trustee
     an instrument accepting such appointment, and thereupon the resignation or
     removal of the retiring Trustee shall become effective and such successor
     Trustee, without any further act, deed or conveyance, shall become vested
     with all the rights, powers, trusts and duties of the retiring Trustee;
     but, on the request of the Company or the successor Trustee, such retiring
     Trustee shall, upon payment of its charges, execute and deliver an
     instrument transferring to such successor Trustee all the rights, powers
     and trusts of the retiring Trustee and shall duly assign, transfer and
     deliver to such successor Trustee all property and money held by such
     retiring Trustee hereunder.

          (b) In case of the appointment hereunder of a successor Trustee with
     respect to the Securities of one or more (but not all) series, the Company,
     the retiring Trustee and each successor Trustee with respect to the
     Securities of one or more series shall execute and


                                       47

<PAGE>   56


     deliver an indenture supplemental hereto wherein each successor Trustee
     shall accept such appointment and which (1) shall contain such provisions
     as shall be necessary or desirable to transfer and confirm to, and to vest
     in, each successor Trustee all the rights, powers, trusts and duties of the
     retiring Trustee with respect to the Securities of that or those series to
     which the appointment of such successor Trustee relates, (2) if the
     retiring Trustee is not retiring with respect to all Securities, shall
     contain such provisions as shall be deemed necessary or desirable to
     confirm that all the rights, powers, trusts and duties of the retiring
     Trustee with respect to the Securities of that or those series as to which
     the retiring Trustee is not retiring shall continue to be vested in the
     retiring Trustee and (3) shall add to or change any of the provisions of
     this Indenture as shall be necessary to provide for or facilitate the
     administration of the trusts hereunder by more than one Trustee, it being
     understood that nothing herein or in such supplemental indenture shall
     constitute such Trustees co-trustees of the same trust and that each such
     Trustee shall be trustee of a trust or trusts hereunder separate and apart
     from any trust or trusts hereunder administered by any other such Trustee;
     and upon the execution and delivery of such supplemental indenture, the
     resignation or removal of the retiring Trustee shall become effective to
     the extent provided therein and each such successor Trustee, without any
     further act, deed or conveyance, shall become vested with all the rights,
     powers, trusts and duties of the retiring Trustee with respect to the
     Securities of that or those series to which the appointment of such
     successor Trustee relates; but, on request of the Company or any successor
     Trustee, such retiring Trustee shall duly assign, transfer and deliver to
     such successor Trustee all property and money held by such retiring Trustee
     hereunder with respect to the Securities of that or those series to which
     the appointment of such successor Trustee relates.

          (c) Upon request of any such successor Trustee, the Company shall
     execute any and all instruments for more fully and certainly vesting in and
     confirming to such successor Trustee all such rights, powers and trusts
     referred to in paragraph (a) or (b) of this Section, as the case may be.

          (d) No successor Trustee shall accept its appointment unless at the
     time of such acceptance such successor Trustee shall be qualified and
     eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.


                                       48

<PAGE>   57


SECTION 613.  Preferential Collection of Claims Against Company.

          The Trustee shall comply with Section 311(a) of the Trust Indenture
Act, excluding any creditor relationship described in Section 311(b) of the
Trust Indenture Act. A Trustee who has resigned or been removed shall be subject
to Section 311(a) of the Trust Indenture Act to the extent indicated therein.

SECTION 614.  Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents which shall
be authorized to act on behalf of the Trustee to authenticate Securities issued
upon original issue and upon exchange, registration of transfer or partial
redemption or pursuant to Section 306, and Securities so authenticated shall be
entitled to the benefits of this Indenture and shall be valid and obligatory for
all purposes as if authenticated by the Trustee hereunder. Wherever reference is
made in this Indenture to the authentication and delivery of Securities by the
Trustee or the Trustee's certificate of authentication, such reference shall be
deemed to include authentication and delivery on behalf of the Trustee by an
Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent. Each Authenticating Agent shall be
acceptable to the Company and shall at all times be a corporation organized and
doing business under the laws of the United States of America, any State thereof
or the District of Columbia having a combined capital and surplus of not less
than $50,000,000 or equivalent amount expressed in a foreign currency and
subject to supervision or examination by Federal or State or District of
Columbia authority or authority of such country. If such Authenticating Agent
publishes reports of condition at least annually, pursuant to law or to the
requirements of said supervising or examining authority, then for the purposes
of this Section, the combined capital and surplus of such Authenticating Agent
shall be deemed to be its combined capital and surplus as set forth in its most
recent report of condition so published. If at any time an Authenticating Agent
shall cease to be eligible in accordance with the provisions of this Section,
such Authenticating Agent shall resign immediately in the manner and with the
effect specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the


                                       49

<PAGE>   58


Company and shall mail written notice of such appointment by first-class mail,
postage prepaid, to all Holders as their names and addresses appear in the
Security Register. Any successor Authenticating Agent upon acceptance of its
appointment hereunder shall become vested with all the rights, powers and duties
of its predecessor hereunder, with like effect as if originally named as an
Authenticating Agent. No successor Authenticating Agent shall be appointed
unless eligible under the provisions of this Section.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

          If an appointment is made pursuant to this Section, the Securities may
have endorsed thereon, in addition to the Trustee's certificate of
authentication, an alternate certificate of authentication in the following
form:

          "This is one of the Securities of the series designated therein
referred to in the within- mentioned Indenture.


                                   [TRUSTEE],
                                        as Trustee


                                   By                                      ,
                                     --------------------------------------
                                           as Authenticating Agent

                                   By                                      ,
                                     --------------------------------------
                                            Authorized Signatory."


          Notwithstanding any provision of this Section 614 to the contrary, if
at any time any Authenticating Agent appointed hereunder with respect to any
series of Securities shall not also be acting as the Security Registrar
hereunder with respect to any series of Securities, then, in addition to all
other duties of an Authenticating Agent hereunder, such Authenticating Agent
shall also be obligated: (i) to furnish to the Security Registrar promptly all
information necessary to enable the Security Registrar to maintain at all times
an accurate and current Security Register; and (ii) prior to authenticating any
Security denominated in a foreign currency, to ascertain from the Company the
units of such foreign currency that are required to be determined by the Company
pursuant to Section 302.


                                       50

<PAGE>   59


                                  ARTICLE SEVEN

                HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

          With respect to each series of Securities, the Company will furnish or
cause to be furnished to the Trustee:

          (a) semi-annually, not more than 15 days after each Regular Record
     Date relating to that series (or, if there is no Regular Record Date
     relating to that series, on January 1 and July 1), a list, in such form as
     the Trustee may reasonably require, of the names and addresses of the
     Holders of that series as of such dates, and

          (b) at such other times as the Trustee may request in writing, within
     30 days after the receipt by the Company of any such request, a list of
     similar form and content, such list to be dated as of a date not more than
     15 days prior to the time such list is furnished;

provided, that so long as the Trustee is the Security Registrar, the Company
shall not be required to furnish or cause to be furnished such a list to the
Trustee. The Company shall otherwise comply with Section 310(a) of the Trust
Indenture Act.

SECTION 702.  Preservation of Information; Communications to Holders.

          (a) The Trustee shall preserve, in as current a form as is reasonably
     practicable, the names and addresses of Holders of each series contained in
     the most recent list furnished to the Trustee as provided in Section 701
     and the names and addresses of Holders of each series received by the
     Trustee in its capacity as Security Registrar, if applicable. The Trustee
     may destroy any list furnished to it as provided in Section 701 upon
     receipt of a new list so furnished. The Trustee shall otherwise comply with
     Section 310(a) of the Trust Indenture Act.

          (b) Holders of Securities may communicate pursuant to Section 312(b)
     the Trust Indenture Act with other Holders with respect to their rights
     under this Indenture or under the Securities.

          (c) Every Holder of Securities, by receiving and holding the same,
     agrees with the Company and the Trustee that neither the Company nor the
     Trustee nor any agent of either of them shall be held accountable by reason
     of the disclosure of any such information as to the names and addresses of
     the Holders in accordance with Section 702(b), regardless of the source
     from which such information was derived, and that the Trustee shall not be
     held accountable by reason of mailing any material pursuant to a request
     made under Section 702(b). The Company, the Trustee, the Security Registrar
     and any other Person shall have the protection of Section 312(c) of the
     Trust Indenture Act.


                                       51

<PAGE>   60


SECTION 703.  Reports by Trustee.

          (a) Within 60 days after May 15 of each year after the execution of
     this Indenture, the Trustee shall transmit by mail to Holders a brief
     report dated as of such May 15 that complies with Section 313(a) of the
     Trust Indenture Act.

          (b) The Trustee shall comply with Section 313(b) of the Trust
     Indenture Act.

          (c) Reports pursuant to this Section shall be transmitted by mail as
     required by Sections 313(c) and 313(d) of the Trust Indenture Act:

               (1) to all Holders of Securities, as the names and addresses of 
          such Holders appear in the Security Register;

               (2) to such Holders of Securities as have, within the two years
          preceding such transmissions, filed their names and addresses with the
          Trustee for that purpose; and

               (3) except in the case of reports pursuant to Subsection (b) of
          this Section, to each Holder of a Security whose name and address is
          preserved at the time by the Trustee, as provided in Section 702(a).

          (d) A copy of each report pursuant to Subsection (a) or (b) of this
     Section 703 shall, at the time of its transmission to Holders, be filed by
     the Trustee with each stock exchange upon which any Securities are listed,
     with the Commission and with the Company. The Company will notify the
     Trustee when any Securities are listed on any stock exchange.

SECTION 704.  Reports by Company.

          The Company shall file with the Trustee, within 15 days after the
Company is required to file the same with the Commission, copies of the annual
reports and of the information, documents and other reports (or copies of such
portions of any of the foregoing as the Commission may from time to time by
rules and regulations prescribe) which the Company may be required to file with
the Commission pursuant to Section 13 or Section 15(d) of the Securities
Exchange Act of 1934, as amended, and shall otherwise comply with Section 314(a)
of the Trust Indenture Act.

                                  ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, unless:


                                       52

<PAGE>   61


          (1) the Person formed by such consolidation or into which the Company
     is merged or the Person which acquires by conveyance or transfer, or which
     leases, the properties and assets of the Company substantially as an
     entirety shall be a corporation, partnership or trust and shall expressly
     assume, by an indenture supplemental hereto, executed and delivered to the
     Trustee, in form satisfactory to the Trustee, the due and punctual payment
     of the principal of (and premium, if any) and interest on and any
     Additional Amounts with respect to all the Securities and the performance
     of every covenant of this Indenture on the part of the Company to be
     performed or observed;

          (2) immediately after giving effect to such transaction, no Event of
     Default, and no event, act or condition which, after notice or lapse of
     time or both, would become an Event of Default, shall have happened and be
     continuing; and

          (3) the Company shall have delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that such
     consolidation, merger, conveyance, transfer or lease and, if a supplemental
     indenture is required in connection with such transaction, such
     supplemental indenture comply with this Article and that all conditions
     precedent herein provided for relating to such transaction have been
     complied with.

SECTION 802.  Successor Person Substituted.

          Upon any consolidation by the Company with or merger by the Company
into any other Person or any conveyance, transfer or lease of the properties and
assets of the Company substantially as an entirety in accordance with Section
801, the successor Person formed by such consolidation or into which the Company
is merged or to which such conveyance, transfer or lease is made shall succeed
to, and be substituted for, and may exercise every right and power of, the
Company under this Indenture with the same effect as if such successor Person
had been named as the Company herein, and thereafter, except in the case of such
lease, the predecessor Person shall be relieved of all obligations and covenants
under this Indenture and the Securities.

                                  ARTICLE NINE

                             SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders.

          Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, for any of the following purposes:

          (1) to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company herein
     and in the Securities; or


                                       53

<PAGE>   62


          (2) to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to be
     for the benefit of less than all series of Securities, stating that such
     covenants are expressly being included solely for the benefit of such
     series), to convey, transfer, assign, mortgage or pledge any property to or
     with the Trustee or otherwise secure any series of the Securities or to
     surrender any right or power herein conferred upon the Company; or

          (3) to add any additional Events of Default with respect to all or any
     series of the Securities (and, if such Event of Default is applicable to
     less than all series of Securities, specifying the series to which such
     Event of Default is applicable); or

          (4) to change or eliminate any of the provisions of this Indenture,
     provided that any such change or elimination shall become effective only
     when there is no Security Outstanding of any series created prior to the
     execution of such supplemental indenture which is adversely affected by
     such change in or elimination of such provision; or

          (5) to establish the form or terms of Securities of any series as
     permitted by Sections 201 and 301; or

          (6) to supplement any of the provisions of this Indenture to such
     extent as shall be necessary to permit or facilitate the defeasance and
     discharge of any series of Securities pursuant to Section 401; provided,
     however, that any such action shall not adversely affect the interest of
     the Holders of Securities of such series or any other series of Securities
     in any material respect; or

          (7) to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this Indenture
     as shall be necessary to provide for or facilitate the administration of
     the trusts hereunder by more than one Trustee, pursuant to the requirements
     of Section 611(b); or

          (8) to cure any ambiguity, to correct or supplement any provision
     herein which may be defective or inconsistent with any other provision
     herein, or to make any other provisions with respect to matters or
     questions arising under this Indenture, provided such other provisions as
     may be made shall not adversely affect the interests of the Holders of
     Securities of any series in any material respect.

SECTION 902.  Supplemental Indentures With Consent of Holders.

          With the consent of the Holders of a majority in principal amount of
the Outstanding Securities of all series affected by such supplemental indenture
(acting as one class), by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized by a Board Resolution, and the Trustee may
enter into an indenture or indentures supplemental hereto for the purpose of
adding any provisions to or changing in any manner or eliminating any of the
provisions


                                       54

<PAGE>   63


of this Indenture or of modifying in any manner the rights of the Holders of
Securities of such series under this Indenture; provided, however, that no such
supplemental indenture shall, without the consent of the Holder of each
Outstanding Security affected thereby,

          (1) change the Stated Maturity of the principal of, or any installment
     of principal of or interest on, any Security, or reduce the principal
     amount thereof or the rate of interest thereon, any Additional Amounts with
     respect thereto or any premium payable upon the redemption thereof, or
     change any obligation of the Company to pay Additional Amounts (except as
     contemplated by Section 801(1) and permitted by Section 901(1)), or reduce
     the amount of the principal of an Original Issue Discount Security that
     would be due and payable upon a declaration of acceleration of the Maturity
     thereof pursuant to Section 502, or change any Place of Payment where, or
     the coin or currency or currencies (including composite currencies) in
     which, any Security or any premium or any interest thereon or Additional
     Amounts with respect thereto is payable, or impair the right to institute
     suit for the enforcement of any such payment on or after the Stated
     Maturity thereof (or, in the case of redemption, on or after the Redemption
     Date), or

          (2) reduce the percentage in principal amount of Outstanding
     Securities, the consent of whose Holders is required for any such
     supplemental indenture, or the consent of whose Holders is required for any
     waiver (of compliance with certain provisions of this Indenture or certain
     defaults hereunder and their consequences) provided for in this Indenture,
     or

          (3) modify any of the provisions of this Section, Section 512 or
     Section 1006, except to increase any such percentage or to provide with
     respect to any particular series the right to condition the effectiveness
     of any supplemental indenture as to that series on the consent of the
     Holders of a specified percentage of the aggregate principal amount of
     Outstanding Securities of such series (which provision may be made pursuant
     to Section 301 without the consent of any Holder) or to provide that
     certain other provisions of this Indenture cannot be modified or waived
     without the consent of the Holder of each Outstanding Security affected
     thereby, provided, however, that this clause shall not be deemed to require
     the consent of any Holder with respect to changes in the references to "the
     Trustee" and concomitant changes in this Section and Section 1006, or the
     deletion of this proviso, in accordance with the requirements of Sections
     611(b) and 901(7).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such covenant
or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

          It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.


                                       55

<PAGE>   64


SECTION 903.  Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 601) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties, immunities or liabilities under this Indenture or
otherwise.

SECTION 904.  Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

SECTION 905.  Conformity With Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.  Reference in Securities to Supplemental Indentures.

          Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

                                   ARTICLE TEN

                                    COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of (and premium,
if any), interest on and any Additional Amounts with respect to the Securities
of that series in accordance with the terms of the Securities and this
Indenture.


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<PAGE>   65


SECTION 1002.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange and where notices and demands to or
upon the Company in respect of the Securities of that series and this Indenture
may be served. The Company will give prompt written notice to the Trustee of the
location, and any change in the location, of such office or agency. If at any
time the Company shall fail to maintain any such required office or agency or
shall fail to furnish the Trustee with the address thereof, such presentations,
surrenders, notices and demands may be made or served at the Corporate Trust
Office of the Trustee.

          The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes and may from time to time rescind
such designations; provided, however, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in each Place of Payment for Securities of any series for such
purposes. The Company will give prompt written notice to the Trustee of any such
designation or rescission and of any change in the location of any such other
office or agency.

SECTION 1003.  Money for Securities Payments to be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on or any Additional Amounts with
respect to any of the Securities of that series, segregate and hold in trust for
the benefit of the Persons entitled thereto a sum sufficient to pay the
principal (and premium, if any) or interest or any Additional Amounts so
becoming due until such sums shall be paid to such Persons or otherwise disposed
of as herein provided and will promptly notify the Trustee of its action or
failure so to act.

          Whenever the Company shall have one or more Paying Agents for any
series of Securities, the Company will, on or before each due date of the
principal of (and premium, if any) or interest on any Securities of that series,
deposit with a Paying Agent a sum sufficient to pay the principal (and premium,
if any) or interest so becoming due, such sum to be held in trust for the
benefit of the Persons entitled to such principal, premium or interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

          The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will:

          (1) hold all sums held by it for the payment of the principal of (and
     premium, if any), interest on or any Additional Amounts with respect to
     Securities of that series in trust


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<PAGE>   66


     for the benefit of the Persons entitled thereto until such sums shall be
     paid to such Persons or otherwise disposed of as herein provided;

          (2) give the Trustee notice of any default by the Company (or any
     other obligor upon the Securities of that series) in the making of any
     payment of principal (and premium, if any), interest on or any Additional
     Amounts with respect to the Securities of that series; and

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

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

          Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on or any Additional Amounts with respect to any Security of
any series and remaining unclaimed for three years after such principal (and
premium, if any) or interest or Additional Amounts have become due and payable
shall, unless otherwise required by mandatory provisions of applicable escheat,
or abandoned or unclaimed property law, be paid to the Company on Company
Request, or (if then held by the Company) shall be discharged from such trust;
and the Holder of such Security shall thereafter, as an unsecured general
creditor, look only to the Company for payment thereof, and all liability of the
Trustee or such Paying Agent with respect to such trust money, and all liability
of the Company as trustee thereof, shall thereupon cease; provided, however,
that the Trustee or such Paying Agent, before being required to make any such
repayment, may at the expense of the Company cause to be published once, in an
Authorized Newspaper in The Borough of Manhattan, The City of New York and in
such other Authorized Newspapers as the Trustee shall deem appropriate, notice
that such money remains unclaimed and that, after a date specified therein,
which shall not be less than 30 days from the date of such publication, any
unclaimed balance of such money then remaining will, unless otherwise required
by mandatory provisions of applicable escheat, or abandoned or unclaimed
property law, be repaid to the Company.

SECTION 1004.  Existence.

          Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence.


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<PAGE>   67



SECTION 1005.  Statement by Officers as to Default.

          The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year of the Company ending after the date hereof so long as any
Security is outstanding hereunder, an Officers' Certificate complying with
Section 314(a) of the Trust Indenture Act, stating that a review of the
activities of the Company during such year and of performance under this
Indenture has been made under the supervision of the signers thereof and whether
or not to the best of their knowledge, based upon such review, the Company is in
default in the performance, observance or fulfillment of any of its covenants
and other obligations under this Indenture, and if the Company shall be in
default, specifying each such default known to them and the nature and status
thereof. One of the officers signing the Officers' Certificate delivered
pursuant to this Section 1005 shall be the principal executive, financial or
accounting officer of the Company.

          For purposes of this Section, such compliance shall be determined
without regard to any period of grace or requirement of notice provided under
this Indenture.

SECTION 1006.  Waiver of Certain Covenants.

          The Company may omit in any particular instance to comply with any
covenant or condition set forth in Section 1004, or any covenant added for the
benefit of any series of Securities as contemplated by Section 301 (unless
otherwise specified pursuant to Section 301) if before or after the time for
such compliance the Holders of a majority in principal amount of the Outstanding
Securities of all series affected by such omission (acting as one class) shall,
by Act of such Holders, either waive such compliance in such instance or
generally waive compliance with such covenant or condition, but no such waiver
shall extend to or affect such covenant or condition except to the extent so
expressly waived, and, until such waiver shall become effective, the obligations
of the Company and the duties of the Trustee in respect of any such covenant or
condition shall remain in full force and effect.

SECTION 1007.  Additional Amounts.

          If the Securities of a series expressly provide for the payment of
Additional Amounts, the Company will pay to the Holder of any Security of such
series Additional Amounts as expressly provided therein. Whenever in this
Indenture there is mentioned, in any context, the payment of the principal of or
any premium or interest on, or in respect of, any Security of any series or the
net proceeds received from the sale or exchange of any Security of any series,
such mention shall be deemed to include mention of the payment of Additional
Amounts provided for in this Section to the extent that, in such context,
Additional Amounts are, were or would be payable in respect thereof pursuant to
the provisions of this Section and express mention of the payment of Additional
Amounts (if applicable) in any provisions hereof shall not be construed as
excluding Additional Amounts in those provisions hereof where such express
mention is not made.

          If the Securities of a series provide for the payment of Additional
Amounts, at least 10 days prior to the FIRST Interest Payment Date with respect
to that series of Securities (or if the


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<PAGE>   68



Securities of that series will not bear interest prior to Maturity, the first
day on which a payment of principal and any premium is made), and at least 10
days prior to each date of payment of principal and any premium or interest if
there has been any change with respect to the matters set forth in the
below-mentioned Officers' Certificate, the Company shall furnish the Trustee and
the Company's principal Paying Agent or Paying Agents, if other than the
Trustee, with an Officers' Certificate instructing the Trustee and such Paying
Agent or Paying Agents whether such payment of principal of and any premium or
interest on the Securities of that series shall be made to Holders of Securities
of that series who are United States Aliens without withholding for or on
account of any tax, assessment or other governmental charge described in the
Securities of that series. If any such withholding shall be required, then such
Officers' Certificate shall specify by country the amount, if any, required to
be withheld on such payments to such Holders of Securities and the Company will
pay to such Paying Agent the Additional Amounts required by this Section. The
Company covenants to indemnify the Trustee and any Paying Agent for, and to hold
them harmless against any loss, liability or expense reasonably incurred without
negligence or bad faith on their part arising out of or in connection with
actions taken or omitted by any of them in reliance on any Officers' Certificate
furnished pursuant to this Section 1007.

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

          Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any series)
in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

          Unless otherwise provided with respect to the Securities of a series
as contemplated by Section 301, the election of the Company to redeem any
Securities shall be evidenced by a Board Resolution. In case of any redemption
at the election of the Company of less than all the Securities of any series,
the Company shall, a reasonable period prior to the Redemption Date fixed by the
Company (unless a shorter notice shall be satisfactory to the Trustee), notify
the Trustee of such Redemption Date and of the principal amount of Securities of
such series to be redeemed. In the case of any redemption of Securities prior to
the expiration of any restriction on such redemption provided in the terms of
such Securities or elsewhere in this Indenture, the Company shall furnish the
Trustee with an Officers' Certificate evidencing compliance with such
restriction.

SECTION 1103.  Selection by Trustee of Securities to be Redeemed.

          If less than all the Securities of any series are to be redeemed, the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method


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<PAGE>   69


as the Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Securities of such series of a denomination larger than
the minimum authorized denomination for Securities of that series or of the
principal amount of global Securities of such series.

          The Trustee shall promptly notify the Company and the Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

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

SECTION 1104.  Notice of Redemption.

          Notice of redemption shall be given in the manner provided in Section
107 to each Holder of Securities to be redeemed not less than 30 nor more than
60 days prior to the Redemption Date.

          All notices of redemption shall state:

          (1) the Redemption Date;

          (2) the Redemption Price;

          (3) if less than all the Outstanding Securities of any series are to
     be redeemed, the identification (and, in the case of partial redemption,
     the principal amounts) of the particular Securities to be redeemed;

          (4) that on the Redemption Date the Redemption Price will become due
     and payable upon each such Security to be redeemed and, if applicable, that
     interest thereon will cease to accrue on and after said date;

          (5) the place or places where such Securities are to be surrendered
     for payment of the Redemption Price;

          (6) that the redemption is for a sinking fund, if such is the case;
     and

          (7) the "CUSIP" number, if applicable.

          A notice of redemption as contemplated by Section 107 need not
identify particular Securities to be redeemed. Notice of redemption of
Securities to be redeemed at the election of the


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Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

          On or before [TIME], [CITY, STATE], time, on any Redemption Date, the
Company shall deposit with the Trustee or with a Paying Agent (or, if the
Company is acting as its own Paying Agent, segregate and hold in trust as
provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date)
accrued interest on, and any Additional Amounts with respect to, all the
Securities which are to be redeemed on that date.

SECTION 1106.  Securities Payable on Redemption Date.

          Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption Price, together with accrued interest
(and any Additional Amounts) to the Redemption Date; provided, however, that
installments of interest whose Stated Maturity is on or prior to the Redemption
Date shall be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal (and premium, if any) shall,
until paid, bear interest from the Redemption Date at the rate prescribed
therefor in the Security or, in the case of Original Issue Discount Securities,
the Securities' Yield to Maturity.

SECTION 1107.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Company or the Trustee so requires,
due endorsement by, or a written instrument of transfer in form satisfactory to
the Company and the Trustee duly executed by, the Holder thereof or his attorney
duly authorized in writing), and the Company shall execute, and the Trustee
shall authenticate and deliver to the Holder of such Security without service
charge, a new Security or Securities of the same series and Stated Maturity, of
any authorized denomination as requested by such Holder, in aggregate principal
amount equal to and in exchange for the unredeemed portion of the principal of
the Security so surrendered.


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<PAGE>   71



SECTION 1108.  Purchase of Securities.

          Unless otherwise specified as contemplated by Section 301, the Company
and any Affiliate of the Company may at any time purchase or otherwise acquire
Securities in the open market or by private agreement. Such acquisition shall
not operate as or be deemed for any purpose to be a redemption of the
indebtedness represented by such Securities. Any Securities purchased or
acquired by the Company may be delivered to the Trustee and, upon such delivery,
the indebtedness represented thereby shall be deemed to be satisfied. Section
309 shall apply to all Securities so delivered.

                                 ARTICLE TWELVE

                                  SINKING FUNDS

SECTION 1201.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

          The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment," and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment." Unless otherwise provided by the terms of Securities of
any series, the cash amount of any sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

          The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption), and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of such series required to be made
pursuant to the terms of such Securities as provided for by the terms of such
series; provided that such Securities have not been previously so credited. Such
Securities shall be received and credited for such purpose by the Trustee at the
Redemption Price specified in such Securities for redemption through operation
of the sinking fund and the amount of such sinking payment shall be reduced
accordingly.


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SECTION 1203.  Redemption of Securities for Sinking Fund.

          Not less than 45 days prior (unless a shorter period shall be
satisfactory to the Trustee) to each sinking fund payment date for any series of
Securities, the Company will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivery of or by crediting Securities of that series pursuant to
Section 1202 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 30 days before each such sinking fund payment date the
Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the
redemption thereof to be given in the name of and at the expense of the Company
in the manner provided in Section 1104. Such notice having been duly given, the
redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN

                        MEETINGS OF HOLDERS OF SECURITIES

SECTION 1301.  Purposes for Which Meetings May Be Called.

          A meeting of Holders of Securities of any or all series may be called
at any time and from time to time pursuant to this Article to make, give or take
any request, demand, authorization, direction, notice, consent, waiver or other
action provided by this Indenture to be made, given or taken by Holders of
Securities of such series.

SECTION 1302.  Call, Notice and Place of Meetings.

          (a) The Trustee may at any time call a meeting of Holders of
Securities of any series for any purpose specified in Section 1301, to be held
at such time and at such place in [CITY, STATE], or in any other location, as
the Trustee shall determine. Notice of every meeting of Holders of Securities of
any series, setting forth the time and the place of such meeting and in general
terms the action proposed to be taken at such meeting, shall be given, in the
manner provided in Section 107, not less than 20 nor more than 180 days prior to
the date fixed for the meeting.

          (b) In case at any time the Company, pursuant to a Board Resolution,
or the Holders of at least 10% in aggregate principal amount of the Outstanding
Securities of any series, shall have requested the Trustee for any such series
to call a meeting of the Holders of Securities of such series for any purpose
specified in Section 1301, by written request setting forth in reasonable detail
the action proposed to be taken at the meeting, and the Trustee shall not have
made the first publication of the notice of such meeting within 30 days after
receipt of such request or shall not thereafter proceed to cause the meeting to
be held as provided herein, then the Company or the Holders of Securities of
such series in the amount above specified, as the case may be, may


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determine the time and the place in [CITY, STATE], for such meeting and may call
such meeting for such purposes by giving notice thereof as provided in
Subsection (a) of this Section.

SECTION 1303.  Persons Entitled to Vote at Meetings.

          To be entitled to vote at any meeting of Holders of Securities of any
series, a Person shall be (1) a Holder of one or more Outstanding Securities of
such series, or (2) a Person appointed by an instrument in writing as proxy for
a Holder or Holders of one or more Outstanding Securities of such series by such
Holder or Holders. The only Persons who shall be entitled to be present or to
speak at any meeting of Holders of Securities of any series shall be the Persons
entitled to vote at such meeting and their counsel, any representatives of the
Trustee and its counsel and any representatives of the Company and its counsel.

SECTION 1304.  Quorum; Action.

          The Persons entitled to vote a majority in aggregate principal amount
of the Outstanding Securities of a series shall constitute a quorum for a
meeting of Holders of Securities of such series. In the absence of a quorum
within 30 minutes of the time appointed for any such meeting, the meeting shall,
if convened at the request of Holders of Securities of such series, be
dissolved. In any other case, the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting. In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting. Subject to Section 1305(d), notice of the
reconvening of any adjourned meeting shall be given as provided in Section
1302(a), except that such notice need be given only once not less than five days
prior to the date on which the meeting is scheduled to be reconvened. Notice of
the reconvening of an adjourned meeting shall state expressly that Persons
entitled to vote a majority in principal amount of the Outstanding Securities of
such series shall constitute a quorum.

          Except as limited by the first proviso to Section 902, any resolution
presented to a meeting or adjourned meeting duly reconvened at which a quorum is
present as aforesaid may be adopted by the affirmative vote of the Holders of a
majority in aggregate principal amount of the Outstanding Securities of that
series; provided, however, that, except as limited by the first proviso to
Section 902, any resolution with respect to any request, demand, authorization,
direction, notice, consent or waiver which this Indenture expressly provides may
be made, given or taken by the Holders of a specified percentage that is less
than a majority in aggregate principal amount of the Outstanding Securities of a
series may be adopted at a meeting or an adjourned meeting duly reconvened and
at which a quorum is present as aforesaid by the affirmative vote of the Holders
of such specified percentage in aggregate principal amount of the Outstanding
Securities of that series.

          Except as limited by the first proviso to Section 902, any resolution
passed or decision taken at any meeting of Holders of Securities of any series
duly held in accordance with this


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Section shall be binding on all the Holders of Securities of such series,
whether or not present or represented at the meeting.

SECTION 1305.  Determination of Voting Rights; Conduct and Adjournment of 
               Meetings.

          (a) The holding of Securities shall be proved in the manner specified
     in Section 105 and the appointment of any proxy shall be proved in the
     manner specified in Section 105. Such regulations may provide that written
     instruments appointing proxies, regular on their face, may be presumed
     valid and genuine without the proof specified in Section 105 or other
     proof.

          (b) The Trustee shall, by an instrument in writing, appoint a
     temporary chairman of the meeting, unless the meeting shall have been
     called by the Company or by Holders of Securities as provided in Section
     1302(b), in which case the Company or the Holders of Securities of the
     series calling the meeting, as the case may be, shall appoint a temporary
     chairman. A permanent chairman and a permanent secretary of the meeting
     shall be elected by vote of the Persons entitled to vote a majority in
     aggregate principal amount of the Outstanding Securities of such series
     represented at the meeting.

          (c) At any meeting each Holder of a Security of such series and each
     proxy shall be entitled to one vote for each $1,000 principal amount of the
     Outstanding Securities of such series held or represented by him; provided,
     however, that no vote shall be cast or counted at any meeting in respect of
     any Security challenged as not Outstanding and ruled by the chairman of the
     meeting to be not Outstanding. The chairman of the meeting shall have no
     right to vote, except as a Holder of a Security of such series or as a
     proxy.

          (d) Any meeting of Holders of Securities of any series duly called
     pursuant to Section 1302 at which a quorum is present may be adjourned from
     time to time by Persons entitled to vote a majority in aggregate principal
     amount of the Outstanding Securities of such series represented at the
     meeting; and the meeting may be held as so adjourned without further
     notice.

SECTION 1306.  Counting Votes and Recording Action of Meetings.

          The vote upon any resolution submitted to any meeting of Holders of
Securities of any series shall be by written ballots on which shall be
subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them. The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting. A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities of any
series shall be prepared by the secretary of the meeting and there shall be
attached to such record the original reports of the inspectors of votes on any
vote by ballot taken thereat and affidavits by one or more persons having


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knowledge of the facts setting forth a copy of the notice of the meeting and
showing that such notice was given as provided in Section 1302 and, if
applicable, Section 1304. Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

                                 *     *     *

          This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.


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

                                       KEY ENERGY SERVICES, INC.


                                       By:
                                          -------------------------------------
                                          Name:
                                          Title:


                                       [TRUSTEE], Trustee



                                       By:
                                          -------------------------------------
                                          Name:
                                          Title:


                                       67

<PAGE>   1
                                                                     EXHIBIT 4.2

================================================================================







                           KEY ENERGY SERVICES, INC.

                                      AND

                                   [TRUSTEE],

                                    TRUSTEE


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




                                   INDENTURE

                                  DATED AS OF

                           ___________________, 1999



                                DEBT SECURITIES
                              (SUBORDINATED DEBT)



===============================================================================



<PAGE>   2

                           Key Energy Services, Inc.

           Reconciliation and tie between Trust Indenture Act of 1939
               and Indenture, dated as of _________________, 1999

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

<TABLE>
<CAPTION>
Section of
Trust Indenture                                                Section(s) of
Act of 1939                                                      Indenture
- -----------                                                      ---------
<S>                                                            <C>
Section 310 (a)(1).............................................  609
            (a)(2).............................................  609
            (a)(3).............................................  Not Applicable
            (a)(4).............................................  Not Applicable
            (b)................................................  608, 610
Section 311 (a)................................................  613
            (b)................................................  613
            (c)................................................  Not Applicable
Section 312 (a)................................................  701, 702(a)
            (b)................................................  702(b)
            (c)................................................  702(c)
Section 313 (a)................................................  703(a)
            (b)................................................  703(b)
            (c)................................................  703(c)
            (d)................................................  703(d)
Section 314 (a)................................................  704, 1005
            (b)................................................  Not Applicable
            (c)(1).............................................  103
            (c)(2).............................................  103
            (c)(3).............................................  Not Applicable
            (d)................................................  Not Applicable
            (e)................................................  103
Section 315 (a)................................................  601(a)
            (b)................................................  602
            (c)................................................  601(b)
            (d)................................................  601(c)
            (d)(1).............................................  601(a)(1)
            (d)(2).............................................  601(c)(2)
            (d)(3).............................................  601(c)(3)
            (e)................................................  513
Section 316 (a)(1)(A)..........................................  502, 511
            (a)(1)(B)..........................................  512
            (a)(2).............................................  Not Applicable
            (a)(last sentence).................................  101
            (b)................................................  508
Section 317 (a)(1).............................................  503
            (a)(2).............................................  504
            (b)................................................  1003
Section 318 (a)................................................  108
</TABLE>

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

Note:    This reconciliation and tie shall not, for any purpose, be deemed to
be a part of the Indenture.

<PAGE>   3

<TABLE>
<CAPTION>

                               TABLE OF CONTENTS

                                                                          Page
                                                                          -----
<S>                                                                         <C>
RECITALS OF THE COMPANY......................................................1

                                  ARTICLE ONE
                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions....................................................1
         Act.................................................................2
         Additional Amounts..................................................2
         Affiliate...........................................................2
         Agent Members.......................................................2
         Authenticating Agent................................................2
         Authorized Newspaper................................................2
         Board of Directors..................................................2
         Board Resolution....................................................2
         Business Day........................................................3
         Capital Stock.......................................................3
         Capitalized Lease Obligation........................................3
         Commission..........................................................3
         Company  ...........................................................3
         Company Request" and "Company Order.................................3
         Conversion Event....................................................3
         Corporate Trust Office..............................................3
         Credit Agreement....................................................3
         Defaulted Interest..................................................4
         Depositary..........................................................4
         Designated Senior Indebtedness......................................4
         Disqualified Capital Stock..........................................4
         Dollar   ...........................................................4
         Event of Default....................................................4
         Exchange Rate.......................................................4
         Holder   ...........................................................5
         Indebtedness........................................................5
         Indenture...........................................................5
         Interest ...........................................................5
         Interest Payment Date...............................................5
         Interest Swap and Hedging Obligation................................5
         Judgment Currency...................................................5
         Junior security.....................................................5
</TABLE>


                                       i
<PAGE>   4

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
         Maturity ...........................................................6
         Obligations.........................................................6
         Officers' Certificate...............................................6
         Opinion of Counsel..................................................6
         Original Issue Discount Security....................................6
         Outstanding.........................................................6
         Paying Agent........................................................7
         Payment Default.....................................................7
         Payment Notice......................................................7
         Person   ...........................................................7
         Place of Payment....................................................7
         Predecessor Security................................................7
         Qualified Capital Stock.............................................8
         Redemption Date.....................................................8
         Redemption Price....................................................8
         Regular Record Date.................................................8
         Required Currency...................................................8
         Responsible Officer.................................................8
         Securities..........................................................8
         Security Custodian..................................................8
         Security Register...................................................8
         Senior Indebtedness.................................................8
         Special Record Date.................................................9
         Stated Maturity.....................................................9
         Subsidiary..........................................................9
         Trustee  ...........................................................9
         Trust Indenture Act.................................................9
         United States.......................................................9
         United States Alien.................................................9
         U.S. Government Obligations.........................................9
         Vice President.....................................................10
         Wholly Owned Subsidiary............................................10
         Yield to Maturity..................................................10

SECTION 102.  Incorporation by Reference of Trust Indenture Act.............10
SECTION 103.  Compliance Certificates and Opinions..........................10
SECTION 104.  Form of Documents Delivered to Trustee........................11
SECTION 105.  Acts of Holders; Record Dates.................................12
SECTION 106.  Notices, Etc., to Trustee and Company.........................13
SECTION 107.  Notice to Holders; Waiver.....................................13
SECTION 108.  Conflict With Trust Indenture Act.............................14
</TABLE>


                                       ii

<PAGE>   5

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
SECTION 109.  Effect of Headings and Table of Contents......................14
SECTION 110.  Successors and Assigns........................................14
SECTION 111.  Separability Clause...........................................14
SECTION 112.  Benefits of Indenture.........................................14
SECTION 113.  Governing Law.................................................14
SECTION 114.  Legal Holidays................................................15
SECTION 115.  Corporate Obligation..........................................15

                                  ARTICLE TWO
                                 SECURITY FORMS

SECTION 201.  Forms Generally...............................................15
SECTION 202.  Form of Trustee's Certificate of Authentication...............16
SECTION 203.  Securities in Global Form.....................................16

                                 ARTICLE THREE
                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series..........................19
SECTION 302.  Denominations.................................................22
SECTION 303.  Execution, Authentication Delivery and Dating.................22
SECTION 304.  Temporary Securities..........................................23
SECTION 305.  Registration, Registration of Transfer and Exchange...........24
SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities..............25
SECTION 307.  Payment of Interest; Interest Rights Preserved................26
SECTION 308.  Persons Deemed Owners.........................................27
SECTION 309.  Cancellation..................................................27
SECTION 310.  Computation of Interest.......................................27
SECTION 311.  CUSIP Numbers.................................................28

                                  ARTICLE FOUR
                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture.......................28
SECTION 402.  Application of Trust Money....................................30
SECTION 403.  Discharge of Liability on Securities of Any Series............30
SECTION 404.  Applicability of Defeasance Provisions; Company's Option to 
                   Effect Defeasance or Covenant Defeasance.................31
SECTION 405.  Defeasance and Discharge......................................31
SECTION 406.  Covenant Defeasance...........................................32
SECTION 407.  Conditions to Defeasance or Covenant Defeasance...............32
</TABLE>


                                      iii
<PAGE>   6

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
SECTION 408.  Deposited Money and Government Obligations to be Held in 
                   Trust....................................................34
SECTION 409.  Repayment to Company..........................................34
SECTION 410.  Indemnity for Government Obligations..........................34
SECTION 411.  Reinstatement.................................................34

                                  ARTICLE FIVE
                                    REMEDIES

SECTION 501.  Events of Default.............................................35
SECTION 502.  Acceleration of Maturity; Rescission and Annulment............37
SECTION 503.  Collection of Indebtedness and Suits for Enforcement by 
                   Trustee..................................................38
SECTION 504.  Trustee May File Proofs of Claim..............................39
SECTION 505.  Trustee May Enforce Claims Without Possession of Securities 
                   or Coupons...............................................39
SECTION 506.  Application of Money Collected................................40
SECTION 507.  Limitation on Suits...........................................40
SECTION 508.  Unconditional Right of Holders to Receive Principal Premium 
                   and Interest.............................................41
SECTION 509.   Restoration of Rights and Remedies...........................41
SECTION 510.  Rights and Remedies Cumulative................................42
SECTION 511.  Delay or Omission Not Waiver..................................42
SECTION 512.  Control by Holders............................................42
SECTION 513.  Waiver of Past Defaults.......................................42
SECTION 514.  Undertaking for Costs.........................................43
SECTION 515.   Waiver of Stay or Extension Laws.............................43

                                  ARTICLE SIX
                                  THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities...........................44
SECTION 602.  Notice of Defaults............................................45
SECTION 603.  Certain Rights of Trustee.....................................45
SECTION 604.  Not Responsible for Recitals or Issuance of Securities........46
SECTION 605.  May Hold Securities...........................................46
SECTION 606.  Money Held in Trust...........................................47
SECTION 607.  Compensation and Reimbursement................................47
SECTION 608.  Disqualification; Conflicting Interests.......................47
SECTION 609.  Corporate Trustee Required; Eligibility.......................48
SECTION 610.  Resignation and Removal; Appointment of Successor.............48
SECTION 611.  Acceptance of Appointment by Successor........................50
SECTION 612.  Merger, Conversion, Consolidation or Succession to Business...51
</TABLE>


                                       iv

<PAGE>   7


<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
SECTION 613.  Preferential Collection of Claims Against Company.............51
SECTION 614.  Appointment of Authenticating Agent...........................51

                                 ARTICLE SEVEN
               HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.....53
SECTION 702.  Preservation of Information; Communications to Holders........54
SECTION 703.  Reports by Trustee............................................54
SECTION 704.  Reports by Company............................................55

                                 ARTICLE EIGHT
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms..........55
SECTION 802.  Successor Person Substituted..................................56

                                  ARTICLE NINE
                            SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders............56
SECTION 902.  Supplemental Indentures With Consent of Holders...............57
SECTION 903.  Execution of Supplemental Indentures..........................58
SECTION 904.  Effect of Supplemental Indentures.............................58
SECTION 905.  Conformity With Trust Indenture Act...........................59
SECTION 906.  Reference in Securities to Supplemental Indentures............59

                                  ARTICLE TEN
                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest...................59
SECTION 1002.  Maintenance of Office or Agency..............................59
SECTION 1003.  Money for Securities Payments to be Held in Trust............60
SECTION 1004.  Existence....................................................61
SECTION 1005.  Statement by Officers as to Default..........................61
SECTION 1006.  Waiver of Certain Covenants..................................61
SECTION 1007.  Additional Amounts...........................................62
</TABLE>


                                       v
<PAGE>   8


<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
                                 ARTICLE ELEVEN
                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.....................................63
SECTION 1102.  Election to Redeem; Notice to Trustee........................63
SECTION 1103.  Selection by Trustee of Securities to be Redeemed............63
SECTION 1104.  Notice of Redemption.........................................64
SECTION 1105.  Deposit of Redemption Price..................................64
SECTION 1106.  Securities Payable on Redemption Date........................65
SECTION 1107.  Securities Redeemed in Part..................................65
SECTION 1108.  Purchase of Securities.......................................65

                                 ARTICLE TWELVE
                                 SINKING FUNDS

SECTION 1201.  Applicability of Article.....................................66
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities........66
SECTION 1203.  Redemption of Securities for Sinking Fund....................66

                                ARTICLE THIRTEEN
                                 SUBORDINATION

SECTION 1301.  Securities Subordinated to Senior Indebtedness...............67
SECTION 1302.  No Payment on Securities in Certain Circumstances............67
SECTION 1303.  Securities Subordinated to Prior Payment of All Senior 
                   Indebtedness on Dissolution, Liquidation or 
                   Reorganization...........................................68
SECTION 1304.  Subrogation to Rights of Holders of Senior Indebtedness......69
SECTION 1305.  Obligations of the Company Unconditional.....................70
SECTION 1306.  Trustee Entitled to Assume Payments Not Prohibited in Absence
                   of Notice................................................70
SECTION 1307.  Application by Trustee of Amounts Deposited with It..........71
SECTION 1308.  Subordination Rights Not Impaired by Acts or Omissions of 
                   the Company or Holders of Senior Indebtedness............71
SECTION 1309.  Trustee to Effectuate Subordination of Securities............72
SECTION 1310.  Right of Trustee to Hold Senior Indebtedness.................72
SECTION 1311.  Article Thirteen Not to Prevent Events of Default............72
SECTION 1312.  No Fiduciary Duty of Trustee to Holders of Senior 
                   Indebtedness.............................................72
SECTION 1313.  Article Applicable to Paying Agent...........................73
</TABLE>


                                       vi
<PAGE>   9


<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                         <C>
                                ARTICLE FOURTEEN
                       MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called....................73
SECTION 1402.  Call, Notice and Place of Meetings...........................73
SECTION 1403.  Persons Entitled to Vote at Meetings.........................74
SECTION 1404.  Quorum; Action...............................................74
SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of 
                   Meetings.................................................75
SECTION 1406.  Counting Votes and Recording Action of Meetings..............75
</TABLE>


                                      vii
<PAGE>   10

          INDENTURE, dated as of _______________, 1998 between KEY ENERGY
SERVICES, INC., a corporation duly organized and existing under the laws of the
State of Maryland (herein called the "Company"), having its principal office at
Two Tower Center, Tenth Floor, East Brunswick, New Jersey 08816, and [TRUSTEE],
a [national banking association], as Trustee (herein called the "Trustee"), the
office of the Trustee at which at the date hereof its corporate trust business
is principally administered being [TRUSTEE'S ADDRESS].

                            RECITALS OF THE COMPANY

          The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its subordinated
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture
provided.

          This Indenture is subject to the provisions of the Trust Indenture
Act and the rules and regulations of the Commission promulgated thereunder that
are required to be part of this Indenture and, to the extent applicable, shall
be governed by such provisions.

          All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for
the equal and proportionate benefit of all Holders of the Securities or of
series thereof, as follows:

                                  ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

          (1) the terms defined in this Article have the meanings assigned to
    them in this Article and include the plural as well as the singular;

          (2) all accounting terms not otherwise defined herein have the
    meanings assigned to them in accordance with generally accepted accounting
    principles in the United States, and, except as otherwise herein expressly
    provided, the term "generally accepted accounting principles" with respect
    to any computation required or permitted hereunder shall mean such


                                       1

<PAGE>   11

    accounting principles as are generally accepted in the United States at the 
    date of such computation; and

          (3) the words "herein", "hereof" and "hereunder" and other words of
    similar import refer to this Indenture as a whole and not to any particular
    Article, Section or other subdivision.

          Certain terms, used principally in Article Six, are defined in
Section 102.

          "Act", when used with respect to any Holder, has the meaning
specified in Section 105.

          "Additional Amounts" means any additional amounts that are required
by the express terms of a Security or by or pursuant to a Board Resolution,
under circumstances specified therein or pursuant thereto, to be paid by the
Company with respect to certain taxes, assessments or other governmental
charges imposed on certain Holders and that are owing to such Holders.

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

          "Agent Members" has the meaning specified in Section 203.

          "Authenticating Agent" means any Person, which may include the
Company, authorized by the Trustee to act on behalf of the Trustee pursuant to
Section 614 to authenticate Securities of one or more series.

          "Authorized Newspaper" means a newspaper, in the English language or
in an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place. Where successive publications
are required to be made in Authorized Newspapers, the successive publications
may be made in the same or in different newspapers in the same city meeting the
foregoing requirements and in each case on any Business Day.

          "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

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


                                       2
<PAGE>   12
          "Business Day", when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on
which banking institutions in that Place of Payment are authorized or obligated
by law or executive order to close.

          "Capital Stock" means, with respect to any Person, any and all
shares, interests, rights to purchase (other than convertible or exchangeable
Indebtedness), warrants, options, participations or other equivalents of or
interests (however designated) in stock issued by that Person.

          "Capitalized Lease Obligation" means rental obligations under a lease
that are required to be capitalized for financial reporting purposes in
accordance with generally accepted accounting principles, and the amount of
Indebtedness represented by such obligations shall be the capitalized amount of
such obligations, as determined in accordance with generally accepted
accounting principles.

          "Commission" means the Securities and Exchange Commission, as from
time to time constituted, created under the Securities Exchange Act of 1934, as
amended, or, if at any time after the execution of this instrument such
Commission is not existing and performing the duties now assigned to it under
the Trust Indenture Act, then the body performing such duties at such time.

          "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

          "Company Request" and "Company Order" mean, respectively, a written
request or order signed in the name of the Company by its Chairman of the
Board, its President or a Vice President, and by its Treasurer, an Assistant
Treasurer, its Controller, an Assistant Controller, its Secretary or an
Assistant Secretary, and delivered to the Trustee.

          "Conversion Event" has the meaning specified in Section 501.

          "Corporate Trust Office" means the principal office of the Trustee in
[TRUSTEE'S CITY AND STATE] at which at any particular time its corporate trust
business shall be principally administered, which office at the date hereof is
that indicated in the introductory paragraph of this Indenture.

          "Credit Agreement" means that certain Second Amended and Restated
Credit Agreement, dated as of June 6, 1997, as amended and restated on
September 14, 1998, as amended on November 19, 1998, as subsequently amended as
of December 29, 1998, by and among the Company, PNC Bank, National Association,
as administrative agent, the other lenders, agents and arrangers named therein
and the other parties thereto, providing for up to $500 million of borrowings,
including any related notes, guarantees, collateral documents, instruments and
agreements executed in connection therewith, and in each case as amended,
restated, supplemented, modified, renewed, refunded, replaced or refinanced
from time to time.


                                       3
<PAGE>   13
          "Defaulted Interest" has the meaning specified in Section 307.

          "Depositary" means, with respect to the Securities of any series
issuable or issued in whole or in part in global form, the Person designated as
Depositary by the Company pursuant to Section 301 with respect to the
Securities of such series until a successor Depositary shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Depositary" shall mean or include each Person who is then a Depositary
hereunder, and if at any time there is more than one such Person, "Depositary"
as used with respect to the Securities of any series shall mean the Depositary
with respect to the Securities of that series.

          "Designated Senior Indebtedness," unless otherwise provided with
respect to the Securities of a series as contemplated by Section 301, means (i)
the Credit Agreement and (ii) any Senior Indebtedness that (a) in the
instrument evidencing the same or the assumption or guarantee thereof (or
related documents to which the Company is a party) is expressly designated as
"Designated Senior Indebtedness" for purposes of this Indenture and (b)
satisfies such other conditions as may be provided with respect to the
Securities of such series; provided that such instruments or documents may
place limitations and conditions on the right of such Senior Indebtedness to
exercise the rights of Designated Senior Indebtedness.

          "Disqualified Capital Stock" means, when used with respect to the
Securities of any series, (a) except as set forth in (b), with respect to any
Person, Capital Stock of such Person that, by its terms or by the terms of any
security into which it is convertible, exercisable or exchangeable, is, or upon
the happening of an event or the passage of time would be, required to be
redeemed or repurchased (including at the option of the holder thereof) by such
Person or any Subsidiary of such Person, in whole or in part, on or prior to
the final Stated Maturity of the Securities of such series, and (b) with
respect to any Subsidiary of such Person (including with respect to any
Subsidiary of the Company), any Capital Stock other than any common stock with
no preference, privileges, or redemption or repayment provisions.
Notwithstanding the preceding sentence, any Capital Stock that would constitute
Disqualified Capital Stock solely because the holders thereof have the right to
require the Company to repurchase such Capital Stock upon the occurrence of a
change of control or an asset sale shall not constitute Disqualified Capital
Stock if the terms of such Capital Stock provide that the Company may not
repurchase or redeem any such Capital Stock pursuant to such provisions unless
such repurchase or redemption complies with any provision hereof which requires
the purchase, in whole or in part, of the Securities upon the occurrence of
such change of control or asset sale.

          "Dollar" or "$" means a dollar or other equivalent unit in such coin
or currency of the United States as at the time shall be legal tender for the
payment of public and private debts.

          "Event of Default" has the meaning specified in Section 501.

          "Exchange Rate" has the meaning specified in Section 501.


                                       4
<PAGE>   14
          "Holder", when used with respect to any Security, means the Person in
whose name the Security is registered in the Security Register.

          "Indebtedness" of any Person, unless otherwise provided with respect
to the Securities of a series as contemplated by Section 301, means, without
duplication, the following (whether currently outstanding or hereafter incurred
or created): (i) all liabilities and obligations, contingent or otherwise, of
any such Person (a) in respect of borrowed money (whether the recourse of the
lender is to the whole of the assets of such Person or only to a portion
thereof), (b) evidenced by bonds, notes, debentures or similar instruments, (c)
representing the balance deferred and unpaid of the purchase price of any
property or services, except such as would constitute trade payables to trade
creditors in the ordinary course of business, (d) evidenced by bankers'
acceptances or similar instruments issued or accepted by banks, (e) for the
payment of money relating to a Capitalized Lease Obligation or (f) evidenced by
a letter of credit or a reimbursement obligation of such Person with respect to
any letter of credit; (ii) all net obligations of such Person under Interest
Swap and Hedging Obligations; and (iii) all liabilities of others of the kind
described in the preceding clause (i) or (ii) that such Person has guaranteed
or that is otherwise its legal liability and all obligations to purchase,
redeem or acquire any Capital Stock.

          "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

          "Interest", when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

          "Interest Payment Date", when used with respect to any Security,
means the Stated Maturity of an installment of interest on such Security.

          "Interest Swap and Hedging Obligation" means any obligation of any
Person pursuant to any interest rate swap agreement, interest rate cap
agreement, interest rate collar agreement, interest rate exchange agreement,
currency exchange agreement or any other agreement or arrangement designed to
protect against fluctuations in commodity prices, interest rates or currency
values, including, without limitation, any arrangement whereby, directly or
indirectly, such Person is entitled to receive from time to time periodic
payments calculated by applying either a fixed or floating rate of interest on
a stated notional amount in exchange for periodic payments made by such Person
calculated by applying a fixed or floating rate of interest on the same
notional amount.

          "Judgment Currency" has the meaning specified in Section 506.

          "Junior security" of a Person means, when used with respect to the
Securities of any series, any Qualified Capital Stock of such Person and any
Indebtedness of such Person that is


                                       5
<PAGE>   15
subordinated in right of payment to the Securities of such series to at least
the same extent as the Securities of such series are subordinated to Senior
Debt.

          "Maturity", when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

          "Obligations" means any principal, interest (including interest
accruing on or after the date a bankruptcy case is commenced by or against any
Person obligated therefor, whether a claim for post-petition interest is
allowed in such bankruptcy case), penalties, fees, indemnifications,
reimbursements, damages and other liabilities payable under the documentation
governing any Indebtedness.

          "Officers' Certificate" means a certificate signed by the Chairman of
the Board, the President or a Vice President, and by the Treasurer, the
Controller, the Secretary or an Assistant Treasurer, Assistant Controller or
Assistant Secretary, of the Company, and delivered to the Trustee, which
certificate shall comply with Section 103 hereof.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for or an employee of the Company, rendered, if applicable, in
accordance with Section 314(c) of the Trust Indenture Act, which opinion shall
comply with Section 103 hereof.

          "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

          "Outstanding", when used with respect to Securities of a series,
means, as of the date of determination, all Securities of such series
theretofore authenticated and delivered under this Indenture, except:

          (i) Securities theretofore cancelled by the Trustee or delivered to
    the Trustee for cancellation;

          (ii) Securities for whose payment or redemption money in the
    necessary amount has been theretofore irrevocably deposited with the
    Trustee or any Paying Agent (other than the Company) in trust or set aside
    and segregated in trust by the Company (if the Company shall act as its own
    Paying Agent) for the Holders of such Securities; provided that, if such
    Securities are to be redeemed, notice of such redemption has been duly
    given pursuant to this Indenture or provision therefor satisfactory to the
    Trustee has been made; and

          (iii) Securities which have been paid pursuant to Section 306 or in
    exchange for or in lieu of which other Securities have been authenticated
    and delivered pursuant to this Indenture, other than any such Securities in
    respect of which there shall have been presented


                                       6
<PAGE>   16

    to the Trustee proof satisfactory to it that such Securities are held by a
    bona fide purchaser in whose hands such Securities are valid obligations of
    the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, or whether a
quorum is present at a meeting of Holders of Securities, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding for such purposes shall be the principal amount thereof that would
be due and payable as of the date of such determination if the Maturity thereof
were accelerated on such date pursuant to Section 502, (b) the principal amount
of a Security denominated in a foreign currency shall be the U.S. dollar
equivalent, determined by the Company on the date of original issuance of such
Security, of the principal amount (or, in the case of an Original Issue
Discount Security, the U.S. dollar equivalent, determined on the date of
original issuance of such Security, of the amount determined as provided in (a)
above), of such Security and (c) Securities owned by the Company or any other
obligor upon the Securities or any Affiliate of the Company or of such other
obligor shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent or waiver or upon
any such determination as to the presence of a quorum, only Securities which
the Trustee knows to be so owned shall be so disregarded. Securities so owned
which have been pledged in good faith may be regarded as Outstanding if the
pledgee establishes to the satisfaction of the Trustee the pledgee's right so
to act with respect to such Securities and that the pledgee is not the Company
or any other obligor upon the Securities or any Affiliate of the Company or of
such other obligor.

          "Paying Agent" means any Person, which may include the Company,
authorized by the Company to pay the principal of (and premium, if any) or
interest on or Additional Amounts with respect to any one or more series of
Securities on behalf of the Company.

          "Payment Default" has the meaning specified in Section 1302(a).

          "Payment Notice" has the meaning specified in Section 1302(b).

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

          "Place of Payment", when used with respect to the Securities of any
series, means the place or places where the principal of (and premium, if any)
and interest on and any Additional Amounts with respect to the Securities of
that series are payable as specified in accordance with Section 301 subject to
the provisions of Section 1002.

          "Predecessor Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that
evidenced by such particular Security; and, for the purposes of this
definition, any Security authenticated and delivered under Section 306 in


                                       7
<PAGE>   17

exchange for or in lieu of a mutilated, destroyed, lost or stolen Security
shall be deemed to evidence the same debt as the mutilated, destroyed, lost or
stolen Security.

          "Qualified Capital Stock" means any Capital Stock of the Company that
is not Disqualified Capital Stock.

          "Redemption Date", when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to the terms
of such Security and this Indenture.

          "Redemption Price", when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to the terms
of such Security and this Indenture.

          "Regular Record Date" for the interest payable on any Interest
Payment Date on the Securities of any series means the date specified for that
purpose as contemplated by Section 301, or, if not so specified, the last day
of the calendar month preceding such Interest Payment Date if such Interest
Payment Date is the fifteenth day of the calendar month or the fifteenth day of
the calendar month preceding such Interest Payment Date if such Interest
Payment Date is the first day of a calendar month, whether or not such day
shall be a Business Day.

          "Required Currency" has the meaning specified in Section 506.

          "Responsible Officer", when used with respect to the Trustee, means
the Chairman or any Vice Chairman of the Board of Directors, the Chairman or
any Vice Chairman of the Executive Committee of the Board of Directors, the
Chairman of the Trust Committee, the President, any Vice President, the
Secretary, any Assistant Secretary, the Treasurer, any Assistant Treasurer, the
Cashier, any Assistant Cashier, any Trust Officer or Assistant Trust Officer,
the Controller or any Assistant Controller or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate
trust matter, any other officer to whom such matter is referred because of his
knowledge of and familiarity with the particular subject.

          "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

          "Security Custodian" means, with respect to Securities of a series
issued in global form, the Trustee for Securities of such series, acting in its
capacity as custodian with respect to the Securities of such series, or any
successor entity thereto, or any other Person designated by such Trustee, or
such successor entity, to act as custodian with respect to the Securities of
such series.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

          "Senior Indebtedness" of any Person, unless otherwise provided with
respect to the Securities of a series as contemplated by Section 301, means (i)
all Indebtedness of such Person,


                                       8
<PAGE>   18
whether currently outstanding or hereafter issued, unless, by the terms of the
instrument creating or evidencing such Indebtedness, it is provided that such
Indebtedness is not superior in right of payment to the Securities or to other
Indebtedness which is pari passu with or subordinated to the Securities, (ii)
all Hedging Obligations with respect to items described in the preceding clause
(i), (iii) all Obligations with respect to the items described in the preceding
clauses (i) and (ii), and (iv) any modifications, refunding, deferrals,
renewals or extensions of any such Indebtedness or securities, notes or other
evidences of Indebtedness issued in exchange for such Indebtedness; provided
that in no event shall "Senior Indebtedness" include (a) Indebtedness of such
Person owed or owing to any Subsidiary of such Person, (b) any trade payable
incurred by such Person for the purchase of goods or materials or for services
obtained in the ordinary course of business or (c) any liability for federal,
state, local or other taxes owed or owing by such Person.

          "Special Record Date" for the payment of any Defaulted Interest on
the Securities of any series means a date fixed by the Trustee pursuant to
Section 307.

          "Stated Maturity", when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.

          "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by
one or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder,
and if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed, except as provided
in Section 905.

          "United States" means the United States of America (including the
States and the District of Columbia) and its "possessions", which include
Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

          "United States Alien" means any Person who, for United States federal
income tax purposes, is a foreign corporation, a non-resident alien individual,
a non-resident alien or foreign fiduciary of an estate or trust, or a foreign
partnership.

          "U.S. Government Obligations" has the meaning specified in Section
401.


                                       9
<PAGE>   19

          "Vice President", when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president".

          "Wholly Owned Subsidiary" means a corporation all the outstanding
voting stock (other than any directors' qualifying shares) of which is owned,
directly or indirectly, by the Company or by one or more other Wholly Owned
Subsidiaries, or by the Company and one or more other Wholly Owned
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Yield to Maturity", when used with respect to any Original Issue
Discount Security, means the yield to maturity, if any, set forth on the face
thereof.

SECTION 102.  Incorporation by Reference of Trust Indenture Act.

          Whenever this Indenture refers to a provision of the Trust Indenture
Act, the provision is incorporated by reference in and made a part of this
Indenture. The following Trust Indenture Act terms used in this Indenture have
the following meanings:

          "Bankruptcy Act" means the Bankruptcy Act or Title 11 of the United
States Code.

          "indenture securities" means the Securities.

          "indenture security holder" means a Holder.

          "indenture to be qualified" means this Indenture.

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

          "obligor" on the indenture securities means the Company or any other
obligor on the Securities.

          All terms used in this Indenture that are defined by the Trust
Indenture Act, defined by Trust Indenture Act reference to another statute or
defined by Commission rule under the Trust Indenture Act and not otherwise
defined herein have the meanings assigned to them therein.

SECTION 103.  Compliance Certificates and Opinions.

          Except as otherwise expressly provided by this Indenture, upon any
application or request by the Company to the Trustee to take any action under
any provision of this Indenture, the Company shall furnish to the Trustee an
Officers' Certificate stating that all conditions precedent, if any (including
any covenants the compliance with which constitutes a condition precedent,
provided for in this Indenture relating to the proposed action have been
complied with and an


                                       10
<PAGE>   20
Opinion of Counsel stating that in the opinion of such counsel all such
conditions precedent, if any (including any covenants the compliance with which
constitutes a condition precedent) have been complied with, except that in the
case of any such application or request as to which the furnishing of such
documents is specifically required by any provision of this Indenture relating
to such particular application or request, no additional certificate or opinion
need be furnished.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

          (1) a statement that each Person signing such certificate or opinion
    has read such covenant or condition and the definitions herein relating
    thereto;

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

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

          (4) a statement as to whether, in the opinion of each such Person,
    such condition or covenant has been complied with.

SECTION 104.  Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care
should know, that the certificate or opinion or representations with respect to
such matters are erroneous.


                                       11
<PAGE>   21

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 105.  Acts of Holders; Record Dates.

          (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent
duly appointed in writing. Except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments or record
thereof or both are delivered to the Trustee and, where it is hereby expressly
required, to the Company. Such instrument or instruments and any such record
(and the action embodied therein and evidenced thereby) are herein sometimes
referred to as the "Act" of the Holders signing such instrument or instruments
and so voting at any such meeting. Proof of execution of any such instrument or
of a writing appointing any such agent, or the holding of any Person of a
Security, shall be sufficient for any purpose of this Indenture and (subject to
Section 601) conclusive in favor of the Trustee and the Company, if made in the
manner provided in this Section. The record of any meeting of Holders of
Securities shall be proved in the manner provided in Section 1406.

          The Company may set in advance a record date for purposes of
determining the identity of Holders of Securities entitled to vote or consent
to any action by vote or consent authorized or permitted under this Indenture.
If a record date is fixed, those Persons who were Holders of Outstanding
Securities at such record date (or their duly designated proxies), and only
those Persons, shall be entitled with respect to such Securities to take such
action by vote or consent or to revoke any vote or consent previously given,
whether or not such Persons continue to be Holders after such record date.
Promptly after any record date is set pursuant to this paragraph, the Company,
at its own expense, shall cause notice thereof to be given to the Trustee in
writing in the manner provided in Section 106 and to the relevant Holders as
set forth in Section 107.

          (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          (c) The principal amount and serial numbers of Securities held by any
Person, and the date of holding the same, shall be proved by the Security
Register.

          (d) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future
Holder of the same Security and the Holder


                                       12
<PAGE>   22

of every Security issued upon the registration of transfer thereof or in
exchange therefor or in lieu thereof in respect of anything done, omitted or
suffered to be done by the Trustee or the Company in reliance thereon, whether
or not notation of such action is made upon such Security. Any Holder or
subsequent Holder may revoke the request, demand, authorization, direction,
notice, consent or other Act as to his Security or portion of his Security;
provided, however, that such revocation shall be effective only if the Trustee
receives the notice of revocation before the date the Act becomes effective.

SECTION 106.  Notices, Etc., to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent,
waiver or Act of Holders or other document provided or permitted by this
Indenture to be made upon, given or furnished to, or filed with,

          (1) the Trustee by any Holder or by the Company shall be sufficient
    for every purpose hereunder if made, given, furnished or filed in writing
    to or with the Trustee at its Corporate Trust Office, Attention: Corporate
    Trust Administration, or

          (2) the Company by the Trustee or by any Holder shall be sufficient
    for every purpose hereunder (unless otherwise herein expressly provided) if
    in writing and mailed, first-class postage prepaid, to the Company
    addressed to it at the address of its principal office specified in the
    first paragraph of this Indenture or at any other address previously
    furnished in writing to the Trustee by the Company, Attention: Corporate
    Secretary.

SECTION 107.  Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of Securities of
any event, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, to
each Holder affected by such event, at the address of such Holder as it appears
in the Security Register, not later than the latest date, and not earlier than
the earliest date, prescribed for the giving of such notice.

          In case by reason of the suspension of regular mail service, or by
reason of any other cause it shall be impracticable to give such notice to
Holders of Securities by mail, then such notification as shall be made with the
approval of the Trustee shall constitute a sufficient notification for every
purpose hereunder. In any case in which notice to Holders of Securities is
given by mail, neither the failure to mail such notice, nor any defect in any
notice so mailed, to any particular Holder of a Security, shall affect the
sufficiency of such notice with respect to other Holders of Securities.

          Where this Indenture provides for notice in any manner, such notice
may be waived in writing by the Person entitled to receive such notice, either
before or after the event, and such waiver shall be the equivalent of such
notice. Waivers of notice by Holders shall be filed with the


                                       13
<PAGE>   23

Trustee, but such filing shall not be a condition precedent to the validity of
any action taken in reliance upon such waiver.

SECTION 108.  Conflict With Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with any
provision of the Trust Indenture Act or another provision hereof which is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such provision of the Trust Indenture Act or such other
provision hereof which is required to be included by any provision of the Trust
Indenture Act shall control. If any provision of this Indenture modifies or
excludes any provision of the Trust Indenture Act which may be so modified or
excluded, the former provision shall be deemed to apply to this Indenture as so
modified or to be excluded.

SECTION 109.  Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 110.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.

SECTION 111.  Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 112.  Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, any Authenticating Agent, Paying Agent, Security Registrar, Security
Custodian, the Holders and holders of any Senior Indebtedness, any benefit or
any legal or equitable right, remedy or claim under this Indenture.

SECTION 113.  Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the laws of the State of New York, but without giving effect
to applicable principles of conflicts of law to the extent the application of
the laws of another jurisdiction would be required thereby.


                                       14
<PAGE>   24

SECTION 114.  Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date or
Stated Maturity of any Security shall not be a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or of the
Securities) payment of principal and interest (and premium and Additional
Amounts, if any) need not be made at such Place of Payment on such date, but
may be made on the next succeeding Business Day at such Place of Payment with
the same force and effect as if made on the Interest Payment Date or Redemption
Date, or at the Stated Maturity, provided that no interest shall accrue with
respect to such payment for the period from and after such Interest Payment
Date, Redemption Date or Stated Maturity, as the case may be.

SECTION 115.  Corporate Obligation.

          No recourse may be taken, directly or indirectly, against any
incorporator, subscriber to the capital stock, stockholder, officer, director
or employee of the Company or the Trustee or of any predecessor or successor of
the Company or the Trustee with respect to the Company's obligations on the
Securities or the obligations of the Company or the Trustee under this
Indenture or any certificate or other writing delivered in connection herewith.

                                  ARTICLE TWO

                                 SECURITY FORMS

SECTION 201.  Forms Generally.

          The Securities of each series shall be in fully registered form and
in substantially such form or forms (including temporary or permanent global
form) as shall be established by or pursuant to a Board Resolution or in one or
more indentures supplemental hereto, in each case with such appropriate
insertions, omissions, substitutions and other variations as are required or
permitted by this Indenture and may have such letters, numbers or other marks
of identification and such legends or endorsements placed thereon as may be
required to comply with the rules of any securities exchange or as may,
consistently herewith, be determined by the officers executing such Securities,
as evidenced by their execution of the Securities. If temporary Securities of
any series are issued in global form as permitted by Section 304, the form
thereof shall be established as provided in the preceding sentence. A copy of
the Board Resolution establishing the form or forms of Securities of any series
(or any such temporary global Security) shall be certified by the Secretary or
an Assistant Secretary of the Company and delivered to the Trustee at or prior
to the delivery of the Company Order contemplated by Section 303 for the
authentication and delivery of such Securities (or any such temporary global
Security).

          The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution thereof.


                                       15
<PAGE>   25
SECTION 202.  Form of Trustee's Certificate of Authentication.

          The Trustee's certificate of authentication shall be in substantially
the following form:

          "This is one of the Securities of the series designated therein
referred to in the within- mentioned Indenture.

                                            [                                ],
                                            ---------------------------------
                                                     as Trustee

                                             By
                                                 ----------------------------
                                                     Authorized Signatory".

SECTION 203.  Securities in Global Form.

          If Securities of a series are issuable in global form, as
contemplated by Section 301, then, notwithstanding clause (10) of Section 301
and the provisions of Section 302, any such Security shall represent such of
the Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time to time endorsed thereon and that the aggregate amount of Outstanding
Securities represented thereby may from time to time be reduced to reflect
exchanges. Any endorsement of a Security in global form to reflect the amount,
or any increase or decrease in the amount, of Outstanding Securities
represented thereby shall be made by the Trustee in such manner and upon
instructions given by such Person or Persons as shall be specified in such
Security or in a Company Order to be delivered to the Trustee pursuant to
Section 303 or Section 304. Subject to the provisions of Section 303 and, if
applicable, Section 304, the Trustee shall deliver and redeliver any Security
in permanent global form in the manner and upon instructions given by the
Person or Persons specified in such Security or in the applicable Company
Order. With respect to the Securities of any series that are represented by a
Security in global form, the Company authorizes the execution and delivery by
the Trustee of a letter of representations or other similar agreement or
instrument in the form customarily provided for by the Depositary appointed
with respect to such global Security. Any Security in global form may be
deposited with the Depositary or its nominee, or may remain in the custody of
the Security Custodian therefor pursuant to a FAST Balance Certificate
Agreement or similar agreement between the Trustee and the Depositary. If a
Company Order pursuant to Section 303 or 304 has been, or simultaneously is,
delivered, any instructions by the Company with respect to endorsement or
delivery or redelivery of a Security in global form shall be in writing but
need not comply with Section 103 and need not be accompanied by an Opinion of
Counsel.

          Members of, or participants in, the Depositary ("Agent Members")
shall have no rights under this Indenture with respect to any Security issued
in global form held on their behalf by the Depositary, or the Security
Custodian as its custodian, or under such global Security, and the Depositary
may be treated by the Company, the Security Custodian and any agent of the
Company or the Trustee as the absolute owner of such global Security for all
purposes whatsoever. Notwithstanding the foregoing, (i) the registered holder
of a Security of any series issued in global


                                       16
<PAGE>   26
form may grant proxies and otherwise authorize any Person, including Agent
Members and Persons that may hold interests through Agent Members, to take any
action that a Holder of such series is entitled to take under this Indenture or
the Securities of such series and (ii) nothing herein shall prevent the
Company, the Security Custodian or any agent of the Company or the Security
Custodian, from giving effect to any written certification, proxy or other
authorization furnished by the Depositary or shall impair, as between the
Depositary and its Agent Members, the operation of customary practices
governing the exercise of the rights of a beneficial owner of any Security.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be
exchangeable only as provided in this paragraph. If the beneficial owners of
interests in a permanent global Security are entitled to exchange such interest
for Securities of such series and of like tenor and principal amount of another
authorized form and denomination, as specified as contemplated by Section 301,
then without unnecessary delay but in any event not later than the earliest
date on which such interests may be so exchanged, the Company shall deliver to
the Trustee definitive Securities of that series in an aggregate principal
amount equal to the principal amount of such permanent global Security,
executed by the Company. On or after the earliest date on which such interests
may be so exchanged, such permanent global Security shall be surrendered from
time to time in accordance with instructions given to the Trustee and the
Depositary (which instructions shall be in writing but need not comply with
Section 103 or be accompanied by an Opinion of Counsel) by the Depositary or
such other depositary as shall be specified in the Company Order with respect
thereto to the Trustee, as the Company's agent for such purpose, to be
exchanged, in whole or in part, for definitive Securities of the same series
without charge and the Trustee shall authenticate and deliver, in exchange for
each portion of such permanent global Security, a like aggregate principal
amount of other definitive Securities of the same series of authorized
denominations and of like tenor as the portion of such permanent global
Security to be exchanged; provided, however, that no such exchanges may occur
during a period beginning at the opening of business 15 days before any
selection of Securities of that series is to be redeemed and ending on the
relevant Redemption Date. Promptly following any such exchange in part, such
permanent global Security marked to evidence the partial exchange shall be
returned by the Trustee to the Depositary or such other depositary referred to
above in accordance with the instructions of the Company referred to above. If
a definitive Security is issued in exchange for any portion of a permanent
global Security after the close of business at the office or agency where such
exchange occurs on (i) any Regular Record Date and before the opening of
business at such office or agency on the relevant Interest Payment Date, or
(ii) any Special Record Date and before the opening of business at such office
or agency on the related proposed date for payment of Defaulted Interest,
interest or Defaulted Interest, as the case may be, will not be payable on such
Interest Payment Date or proposed date for payment, as the case may be, in
respect of such Security, but will be payable on such Interest Payment Date or
proposed for payment, as the case may be, only to the Person to whom interest
in respect of such portion of such permanent global Security is payable in
accordance with the provisions of this Indenture.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, transfers of a Security issued in global form
shall be limited to transfers of such global Security in whole, but not in
part, to the Depositary, its successors or their respective nominees.


                                       17
<PAGE>   27

Interests of beneficial owners in a Security issued in global form may be
transferred in accordance with the rules and procedures of the Depositary.
Securities of any series shall be transferred to all beneficial owners of a
global Security of such series in exchange for their beneficial interests in
that global Security if, and only if, either (1) the Depositary notifies the
Company that it is unwilling or unable to continue as Depositary for the global
Security of such series and a successor Depositary is not appointed by the
Company within 90 days of such notice, (2) an Event of Default has occurred
with respect to such series and is continuing and the Security Registrar has
received a request from the Depositary or the Trustee to issue Securities of
such series in lieu of all or a portion of that global Security (in which case
the Company shall deliver Securities of such series within 30 days of such
request) or (3) the Company determines not to have the Securities of such
series represented by a global Security.

          In connection with any transfer of a portion of the beneficial
interest in a global Security of any series to beneficial owners pursuant to
this Section 203, the Security Registrar shall reflect on its books and records
the date and a decrease in the principal amount of the global Security of that
series in an amount equal to the principal amount of the beneficial interest in
the global Security of that series to be transferred, and the Company shall
execute, and the Trustee upon receipt of a Company Order for the authentication
and delivery of Securities of that series shall authenticate and deliver, one
or more Securities of the same series of like tenor and amount.

          In connection with the transfer of all the beneficial interests in a
global Security of any series to beneficial owners pursuant to this Section
203, the global Security shall be deemed to be surrendered to the Trustee for
cancellation, and the Company shall execute, and the Trustee shall authenticate
and deliver, to each beneficial owner identified by the Depositary in exchange
for its beneficial interest in the global Security, an equal aggregate
principal amount of Securities of that series of authorized denominations.

          Neither the Company nor the Trustee will have any responsibility or
liability for any aspect of the records relating to, or payments made on
account of, Securities of any series by the Depositary, or for maintaining,
supervising or reviewing any records of the Depositary relating to such
Securities. Neither the Company nor the Trustee shall be liable for any delay
by the related global Security Holder or the Depositary in identifying the
beneficial owners, and each such Person may conclusively rely on, and shall be
protected in relying on, instructions from such global Security Holder or the
Depositary for all purposes (including with respect to the registration and
delivery, and the respective principal amounts, of the Securities to be
issued).

          The provisions of the last sentence of Section 303 shall apply to any
Security in global form if such Security was never issued and sold by the
Company and the Company delivers to the Trustee the Security in global form
together with written instructions (which need not comply with Section 103 and
need not be accompanied by an Opinion of Counsel) with regard to the reduction
in the principal amount of Securities represented thereby, together with the
written statement contemplated by the last sentence of Section 303.


                                       18
<PAGE>   28

          Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of
(and premium, if any) and interest on and any Additional Amounts with respect
to any Security in permanent global form shall be made to the Person or Persons
specified therein.

          Notwithstanding the provisions of Section 308 and except as provided
in the preceding paragraph, the Company, the Trustee and any agent of the
Company or of the Trustee shall treat a Person as the Holder of such principal
amount of Outstanding Securities represented by a global Security as shall be
specified in a written statement, if any, of the Holder of such global
Security, which is produced to the Security Registrar by such Holder.

          Global Securities may be issued in either temporary or permanent
form. Permanent global Securities will be issued in definitive form.

                                 ARTICLE THREE

                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution, and set forth in an Officers'
Certificate, or established in one or more indentures supplemental hereto,
prior to the issuance of Securities of any series,

          (1) the title of the Securities of the series (which shall
    distinguish the Securities of the series from all other Securities);

          (2) any limit upon the aggregate principal amount of the Securities
    of the series which may be authenticated and delivered under this Indenture
    (except for Securities authenticated and delivered upon registration of
    transfer of, or in exchange for, or in lieu of, other Securities of the
    series pursuant to Section 304, 305, 306, 906 or 1107);

          (3) whether any Securities of the series are to be issuable initially
    in temporary global form and whether any Securities of the series are to be
    issuable in permanent global form, and, if so, whether beneficial owners of
    interests in any such global Security may exchange such interests for
    Securities of such series and of like tenor of any authorized form and
    denomination and the circumstances under which any such exchanges may
    occur, if other than in the manner provided in Section 203, and the
    Depositary for any global Security or Securities of such series;


                                       19
<PAGE>   29

          (4) the manner in which any interest payable on a temporary global
    Security on any Interest Payment Date will be paid if other than in the
    manner provided in Section 304;

          (5) the date or dates on which the principal of (and premium, if any,
    on) the Securities of the series is payable or the method of determination
    thereof,

          (6) the rate or rates, or the method of determination thereof, at
    which the Securities of the series shall bear interest, if any, whether and
    under what circumstances Additional Amounts with respect to such Securities
    shall be payable, the date or dates from which such interest shall accrue,
    the Interest Payment Dates on which such interest shall be payable and, if
    other than as set forth in Section 101, the Regular Record Date for the
    interest payable on any Securities on any Interest Payment Date;

          (7) the place or places where, subject to the provisions of Section
    1002, the principal of (and premium, if any), any interest on and any
    Additional Amounts with respect to the Securities of the series shall be
    payable;

          (8) the period or periods within which, the price or prices (whether
    denominated in cash, securities or otherwise) at which and the terms and
    conditions upon which Securities of the series may be redeemed, in whole or
    in part, at the option of the Company, if the Company is to have that
    option, and the manner in which the Company must exercise any such option,
    if different from those set forth herein;

          (9) the obligation, if any, of the Company to redeem or purchase
    Securities of the series pursuant to any sinking fund or analogous
    provisions or at the option of a Holder thereof and the period or periods
    within which, the price or prices (whether denominated in cash, securities
    or otherwise) at which and the terms and conditions upon which Securities
    of the series shall be redeemed or purchased in whole or in part pursuant
    to such obligation;

          (10) the denomination in which any Securities of that series shall be
    issuable, if other than denominations of $1,000 and any integral multiple
    thereof;

          (11) the currency or currencies (including composite currencies) if
    other than Dollars, or the form, including equity securities, other debt
    securities (including Securities), warrants or any other securities or
    property of the Company or any other Person, in which payment of the
    principal of (and premium, if any), any interest on and any Additional
    Amounts with respect to the Securities of the series shall be payable;

          (12) if the principal of (and premium, if any) or interest on or any
    Additional Amounts with respect to the Securities of the series are to be
    payable, at the election of the Company or a Holder thereof, in a currency
    or currencies (including composite currencies) other than that in which the
    Securities are stated to be payable, the currency or currencies (including
    composite currencies) in which payment of the principal of (and premium, if
    any) and interest on, and any Additional Amounts with respect to,
    Securities of such series as to


                                       20
<PAGE>   30

         which such election is made shall be payable, and the periods within
         which and the terms and conditions upon which such election is to be
         made;

          (13) if the amount of payments of principal of (and premium, if any),
    any interest on and any Additional Amounts with respect to the Securities
    of the series may be determined with reference to any commodities,
    currencies or indices, values, rates or prices or any other index or
    formula, the manner in which such amounts shall be determined;

          (14) if other than the entire principal amount thereof, the portion
    of the principal amount of Securities of the series which shall be payable
    upon declaration of acceleration of the Maturity thereof pursuant to
    Section 502;

          (15) any additional means of satisfaction and discharge of this
    Indenture with respect to Securities of the series pursuant to Section 401,
    any additional conditions to discharge pursuant to Section 401 or 403 and
    the application, if any, of Section 403;

          (16) any deletions or modifications of or additions to the
    definitions set forth in Section 101, the Events of Default set forth in
    Section 501 or covenants of the Company set forth in Article Ten pertaining
    to the Securities of the series;

          (17) if the Securities of the series are to be convertible into or
    exchangeable for equity securities, other debt securities (including
    Securities), warrants or any other securities or property of the Company or
    any other Person, at the option of the Company or the Holder or upon the
    occurrence of any condition or event, the terms and conditions for such
    conversion or exchange; and

          (18) any other terms of the series (which terms shall not be
    inconsistent with the provisions of this Indenture).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or
pursuant to the Board Resolution referred to above and (subject to Section 303)
set forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.

          At the option of the Company, interest on the Securities of any
series that bears interest may be paid by mailing a check to the address of any
Holder as such address shall appear in the Security Register.

          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
together with such Board Resolution shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Officers' Certificate setting forth the terms of the
series.


                                       21
<PAGE>   31

          The Securities shall be subordinated in right of payment to Senior
Indebtedness as provided in Article Thirteen.

SECTION 302.  Denominations.

          The Securities of each series shall be issuable in such denominations
as shall be specified as contemplated by Section 301. In the absence of any
such provisions with respect to the Securities of any series, the Securities of
such series denominated in Dollars shall be issuable in denominations of $1,000
and any integral multiple thereof. Unless otherwise provided as contemplated by
Section 301 with respect to any series of Securities, any Securities of a
series denominated in a currency other than Dollars shall be issuable in
denominations that are the equivalent, as determined by the Company by
reference to the noon buying rate in The City of New York for cable transfers
for such currency, as such rate is reported or otherwise made available by the
Federal Reserve Bank of New York, on the applicable issue date for such
Securities, of $1,000 and any integral multiple thereof.

SECTION 303.  Execution, Authentication Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its President, its Treasurer or one of its Vice
Presidents, under its corporate seal reproduced thereon or affixed thereto
attested by its Secretary or one of its Assistant Secretaries. The signature of
any of these officers on the Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by
the Company to the Trustee for authentication, together with a Company Order
for the authentication and delivery of such Securities, and the Trustee in
accordance with the Company Order shall authenticate and deliver such
Securities as in this Indenture provided and not otherwise.

          If the form or terms of the Securities of the series have been
established in or pursuant to one or more Board Resolutions or any other method
permitted by Sections 201 and 301, in authenticating such Securities, and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to
Section 601) shall be fully protected in relying upon, an Opinion of Counsel
stating,

          (a) if the form of such Securities has been established by or
    pursuant to Board Resolution as permitted by Section 201, that such form
    has been established in conformity with the provisions of this Indenture;


                                       22
<PAGE>   32
          (b) if the terms of such Securities have been established by or
    pursuant to Board Resolution as permitted by Section 301, that such terms
    have been established in conformity with the provisions of this Indenture;
    and

          (c) that such Securities, when authenticated and delivered by the
    Trustee and issued by the Company in the manner and subject to any
    conditions specified in such Opinion of Counsel, will constitute legal,
    valid and binding obligations of the Company, enforceable in accordance
    with their terms, except as such enforcement is subject to the effect of
    (i) bankruptcy, insolvency, fraudulent conveyance, reorganization or other
    laws relating to or affecting creditors' rights and (ii) general principles
    of equity (regardless of whether such enforcement is considered in a
    proceeding in equity or at law).

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

          Each Security shall be dated the date of its authentication.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security, a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such
Security has been duly authenticated and delivered hereunder. Notwithstanding
the foregoing, if any Security shall have been authenticated and delivered
hereunder but never issued and sold by the Company, and the Company shall
deliver such Security to the Trustee for cancellation as provided in Section
309 together with a written statement (which need not comply with Section 103
and need not be accompanied by an Opinion of Counsel) stating that such
Security has never been issued and sold by the Company, for all purposes of
this Indenture such Security shall be deemed never to have been authenticated
and delivered hereunder and shall never be entitled to the benefits of this
Indenture.

SECTION 304.  Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued, in registered form and with such appropriate insertions, omissions,
substitutions and other variations as the officers of the Company executing
such Securities may determine, as evidenced by their execution of such
Securities.

          Except in the case of temporary Securities in global form (which
shall be exchanged in accordance with the provisions of the following
paragraphs), if temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without


                                       23
<PAGE>   33
unreasonable delay. After the preparation of definitive Securities of such
series, the temporary Securities of such series shall be exchangeable for
definitive Securities of such series upon surrender of the temporary Securities
of such series at the office or agency of the Company in a Place of Payment for
that series, without charge to the Holder. Upon surrender for cancellation of
any one or more temporary Securities of any series, the Company shall execute
and the Trustee shall authenticate and deliver in exchange therefor a like
principal amount of definitive Securities of the same series of authorized
denominations. Until so exchanged the temporary Securities of any series shall
in all respects be entitled to the same benefits under this Indenture as
definitive Securities of such series.

          All Outstanding temporary Securities of any series shall in all
respects be entitled to the same benefits under this Indenture as definitive
Securities of the same series and of like tenor authenticated and delivered
hereunder.

SECTION 305.  Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept for each series of Securities at
one of the offices or agencies maintained pursuant to Section 1002 a register
(the register maintained in such office and in any other office or agency of
the Company in a Place of Payment being herein sometimes collectively referred
to as the "Security Register") in which, subject to such reasonable regulations
as it may prescribe, the Company shall provide for the registration of
Securities and of transfers of Securities of such series. The Trustee is hereby
initially appointed "Security Registrar" for the purpose of registering
Securities and transfers of Securities as herein provided.

          Except as set forth in Section 203 or as may be provided pursuant to
Section 301, upon surrender for registration of transfer of any Security of any
series at the office or agency in a Place of Payment for that series, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Securities of
the same series and of like tenor, of any authorized denominations and of a
like aggregate principal amount.

          At the option of the Holder, Securities of any series may be
exchanged for other Securities of the same series and of like tenor, of any
authorized denominations and of a like aggregate principal amount, upon
surrender of the Securities to be exchanged at such office or agency. Whenever
any Securities are so surrendered for exchange, the Company shall execute, and
the Trustee shall authenticate and deliver, the Securities which the Holder
making the exchange is entitled to receive.

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

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company or the Trustee) be duly
endorsed, or be accompanied by a


                                       24
<PAGE>   34
written instrument of transfer in form satisfactory to the Company and the
Security Registrar duly executed, by the Holder thereof or his attorney duly
authorized in writing.

          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchange pursuant to Section 304, 906 or 1107 not involving any transfer.

          The Company shall not be required (i) to issue, register the transfer
of or exchange Securities of any series during a period beginning at the
opening of business 15 days before the day of the mailing of a notice of
redemption of Securities of such series selected for redemption and ending at
the close of business on the day of the mailing of the relevant notice of
redemption or (ii) to register the transfer of or exchange any Security so
selected for redemption in whole or in part, except the unredeemed portion of
any Security being redeemed in part.

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and upon its request the Trustee
shall authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.

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

          Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall
be entitled to all the benefits of this Indenture equally and proportionately
with any and all other Securities of that series duly issued hereunder.


                                       25
<PAGE>   35
          The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities.

SECTION 307.  Payment of Interest; Interest Rights Preserved.

          Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for such interest. Unless
otherwise provided with respect to the Securities of any series, payment of
interest may be made at the option of the Company by check mailed or delivered
to the address of any Person entitled thereto as such address shall appear in
the Security Register.

          Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in clause (1) or (2) below:

          (1) The Company may elect to make payment of any Defaulted Interest
    to the Persons in whose names the Securities of such series (or their
    respective Predecessor Securities) are registered at the close of business
    on a Special Record Date for the payment of such Defaulted Interest, which
    shall be fixed in the following manner. The Company shall notify the
    Trustee in writing of the amount of Defaulted Interest proposed to be paid
    on each Security of such series and the date of the proposed payment, and
    at the same time the Company shall deposit with the Trustee an amount of
    money equal to the aggregate amount proposed to be paid in respect of such
    Defaulted Interest or shall make arrangements satisfactory to the Trustee
    for such deposit prior to the date of the proposed payment, such money when
    deposited to be held in trust for the benefit of the Persons entitled to
    such Defaulted Interest as in this Clause provided. Thereupon the Trustee
    shall fix a Special Record Date for the payment of such Defaulted Interest
    which shall be not more than 15 days and not less than 10 days prior to the
    date of the proposed payment and not less than 10 days after the receipt by
    the Trustee of the notice of the proposed payment. The Trustee shall
    promptly notify the Company of such Special Record Date and, in the name
    and at the expense of the Company, shall cause notice of the proposed
    payment of such Defaulted Interest and the Special Record Date therefor to
    be mailed, first-class postage prepaid, to each Holder of Securities of
    such series at his address as it appears in the Security Register, not less
    than 10 days prior to such Special Record Date. The Trustee may, in its
    discretion, in the name and at the expense of the Company, cause a similar
    notice to be published at least once in an Authorized Newspaper, but such
    publication shall not be a condition precedent to the establishment of such
    Special Record Date. Notice of the proposed payment of such Defaulted
    Interest and the Special Record Date therefor having been so mailed, such
    Defaulted Interest shall be paid to the Persons in whose names the
    Securities of such series


                                       26
<PAGE>   36

    (or their respective Predecessor Securities) are registered at the close of
    business on such Special Record Date and shall no longer be payable
    pursuant to the following clause (2).

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

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

SECTION 308.  Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of (and premium, if
any) and (subject to Sections 305 and 307) interest on such Security and for
all other purposes whatsoever, whether or not such Security be overdue, and
neither the Company, the Trustee nor any agent of the Company or the Trustee
shall be affected by notice to the contrary.

SECTION 309.  Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee.
All Securities so delivered shall be promptly cancelled by the Trustee. The
Company may at any time deliver to the Trustee for cancellation any Securities
previously authenticated and delivered hereunder which the Company may have
acquired in any manner whatsoever, and all Securities so delivered shall be
promptly cancelled by the Trustee. No Securities shall be authenticated in lieu
of or in exchange for any Securities cancelled as provided in this Section,
except as expressly permitted by this Indenture. All cancelled Securities held
by the Trustee shall be disposed of as directed by a Company Order; provided
that the Trustee shall not be required to destroy such Securities.

SECTION 310.  Computation of Interest.

          Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a year of twelve 30- day months.


                                       27
<PAGE>   37

SECTION 311.  CUSIP Numbers.

          The Company in issuing the Securities may use "CUSIP" numbers (if
then generally in use), and, if so, the Trustee shall use "CUSIP" numbers in
notices of redemption as a convenience to Holders; provided that any such
notice may state that no representation is made as to the correctness of such
numbers either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be
affected by any defect in or omission of such numbers.

                                  ARTICLE FOUR

                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture.

          This Indenture shall upon Company Request cease to be of further
effect with respect to Securities of a series, and the Trustee, at the expense
of the Company, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture with respect to Securities of such series, when

          (1)   either

                (A) all Securities of such series theretofore authenticated and
    delivered (other than (i) Securities which have been destroyed, lost or
    stolen and which have been replaced or paid as provided in Section 306, and
    (ii) Securities for whose payment money has theretofore been deposited in
    trust or segregated and held in trust by the Company and thereafter repaid
    to the Company or discharged from such trust, as provided in Section 1003)
    have been delivered to the Trustee for cancellation; or

                (B) with respect to all Outstanding Securities of such series
    not theretofore delivered to the Trustee for cancellation, the Company has
    deposited or caused to be deposited with the Trustee as trust funds, under
    the terms of an irrevocable trust agreement in form and substance
    satisfactory to the Trustee, money or U.S. Government Obligations maturing
    as to principal and interest in such amounts and at such times as will
    (together with the income to accrue thereon and without consideration of
    any reinvestment thereof) be sufficient to pay and discharge (with such
    delivery in trust to be for the stated purpose of paying and discharging)
    the entire indebtedness on all Outstanding Securities of such series not
    theretofore delivered to the Trustee for cancellation for principal (and
    premium and Additional Amounts, if any) and interest to the Stated Maturity
    or any Redemption Date contemplated by the penultimate paragraph of this
    Section, as the case may be; or


                                       28
<PAGE>   38

                (C) the Company has properly fulfilled such other means of
    satisfaction and discharge as is specified, as contemplated by Section 301,
    to be applicable to the Securities of such series;

          (2) the Company has paid or caused to be paid all other sums payable
    hereunder by the Company with respect to the Outstanding Securities of such
    series;

          (3) the Company has complied with any other conditions specified
    pursuant to Section 301 to be applicable to the discharge of Securities of
    such series pursuant to this Section 401;

          (4) the Company has delivered to the Trustee an Officers' Certificate
    and an Opinion of Counsel, each stating that all conditions precedent
    herein provided for relating to the satisfaction and discharge of this
    Indenture with respect to the Outstanding Securities of such series have
    been complied with;

          (5) if the conditions set forth in Section 401(1)(A) have not been
    satisfied, and unless otherwise specified pursuant to Section 301 for the
    Securities of such series, the Company has delivered to the Trustee an
    Opinion of Counsel to the effect that the Holders of Securities of such
    series will not recognize income, gain or loss for United States federal
    income tax purposes as a result of such deposit, satisfaction and discharge
    and will be subject to United States federal income tax on the same amount
    and in the same manner and at the same time as would have been the case if
    such deposit, satisfaction and discharge had not occurred; and

          (6) no Default or Event of Default with respect to the Securities of
    such issue shall have occurred and be continuing on the date of such
    deposit or, insofar as clauses (5) or (6) of Section 501 are concerned, at
    any time in the period ending on the 91st day after the date of such
    deposit (it being understood that this condition shall not be deemed
    satisfied until the expiration of such period).

          For the purposes of this Indenture, "U.S. Government Obligations"
means direct non-callable obligations of, or non-callable obligations the
payment of principal of and interest on which is guaranteed by, the United
States of America, or to the payment of which obligations or guarantees the
full faith and credit of the United States of America is pledged, or beneficial
interests in a trust the corpus of which consists exclusively of money or such
obligations or a combination thereof.

          If any Outstanding Securities of such series are to be redeemed prior
to their Stated Maturity, whether pursuant to any optional redemption
provisions or in accordance with any mandatory sinking fund requirement, the
trust agreement referred to in subclause (B) of clause (1) of this Section
shall provide therefor and the Company shall make such arrangements as are
satisfactory to the Trustee for the giving of notice of redemption by the
Trustee in the name, and at the expense, of the Company.


                                       29
<PAGE>   39

          Notwithstanding the satisfaction and discharge of this Indenture with
respect to the Outstanding Securities of such series pursuant to this Section
401, the obligations of the Company to the Trustee under Section 607, the
obligations to any Authenticating Agent under Section 614 and, except for a
discharge pursuant to subclause (A) of clause (1) of this Section, the
obligations of the Company under Sections 305, 306, 404, 610(e), 701, 1001 and
1002 and the obligations of the Trustee under Section 402 and the last
paragraph of Section 1003 shall survive.

SECTION 402.  Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities, and
this Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest and Additional Amounts for the payment of which such money
has been deposited with the Trustee.

SECTION 403.  Discharge of Liability on Securities of Any Series.

          If this Section is specified, as contemplated by Section 301, to be
applicable to Securities of any series, the Company shall be deemed to have
paid and discharged the entire indebtedness on all the Outstanding Securities
of such series, the obligation of the Company under this Indenture and the
Securities of such series to pay the principal of (and premium, if any) and
interest on and any Additional Amounts with respect to Securities of such
series, shall cease, terminate and be completely discharged and the Trustee, at
the expense of the Company, shall execute proper instruments acknowledging such
satisfaction and discharge, when

          (1) the Company has complied with the provisions of Section 401
    (other than any additional conditions specified pursuant to Sections 301
    and 401(3) and except that the Opinion of Counsel referred to in Section
    401(5) shall state that it is based on a ruling by the Internal Revenue
    Service or other change since the date hereof under applicable Federal
    income tax law) with respect to all Outstanding Securities of such series,

          (2) the Company has delivered to the Trustee a Company Request
    requesting such satisfaction and discharge,

          (3) the Company has complied with any other conditions specified
    pursuant to Section 301 to be applicable to the discharge of Securities of
    such series pursuant to this Section 403, and

          (4) the Company has delivered to the Trustee an Officers' Certificate
    and an Opinion of Counsel, each stating that all conditions precedent
    herein provided for relating to the discharge of the indebtedness on the
    Outstanding Securities of such series have been complied with.


                                       30
<PAGE>   40

          Upon the satisfaction of the conditions set forth in this Section
with respect to all the Outstanding Securities of any series, the terms and
conditions of such series, including the terms and conditions with respect
thereto set forth in this Indenture, shall no longer be binding upon, or
applicable to, the Company; provided that, the Company shall not be discharged
from any payment obligations in respect of Securities of such series which are
deemed not to be Outstanding under clause (iii) of the definition thereof if
such obligations continue to be valid obligations of the Company under
applicable law or pursuant to Section 305 or 306.

SECTION 404.  Applicability of Defeasance Provisions; Company's Option to 
Effect Defeasance or Covenant Defeasance.

          Except as otherwise specified as contemplated by Section 301 for the
Securities of any series, the provisions of Sections 404 through 410 inclusive,
with such modifications thereto as may be specified pursuant to Section 301
with respect to any series of Securities, shall be applicable to the
Securities.

SECTION 405.  Defeasance and Discharge.

          On and after the date on which the conditions set forth in Section
407 are satisfied with respect to the Securities of any series, the Company
shall be deemed to have paid and been discharged from its obligations with
respect to such Securities (hereinafter "defeasance"). For this purpose, such
defeasance means that the Company shall be deemed to have paid and discharged
the entire indebtedness represented by such Securities which shall thereafter
be deemed to be "Outstanding" only for the purposes of Section 408 and the
other Sections of this Indenture referred to in clause (ii) of this Section,
and to have satisfied all its other obligations under such Securities and this
Indenture insofar as such Securities are concerned (and the Trustee, upon
payment of all amounts due it under Section 607, at the expense of the Company,
shall on a Company Order execute proper instruments acknowledging the same),
except the following which shall survive until otherwise terminated or
discharged hereunder: (i) the rights of Holders of such Securities to receive,
solely from the trust funds described in Section 407(a) and as more fully set
forth in such Section, payments in respect of the principal of, premium, if
any, and interest, if any, on such Securities when such payments are due; (ii)
the Company's obligations with respect to such Securities under Sections 305,
309, 1002 and 1003 and with respect to the payment of Additional Amounts, if
any, payable with respect to such Securities as specified pursuant to clause
(13) of Section 301; (iii) the Company's obligations with respect to a
conversion or exchange of such Securities; (iv) the rights, powers, trusts,
duties and immunities of the Trustee hereunder; and (v) this Article Four.
Subject to compliance with this Article Four, the Company may defease the
Securities of any series under this Section 405 notwithstanding a prior
covenant defeasance (as defined herein) under Section 406 with respect to such
Securities. Following a defeasance, payment of such Securities may not be
accelerated because of an Event of Default.


                                       31
<PAGE>   41

SECTION 406.  Covenant Defeasance.

          On and after the date on which the conditions set forth in Section
407 (other than Section 407(c)) are satisfied with respect to the Securities of
or within any series, (i) the Company shall be released from its obligations
under Sections 801 and 1004 and, if specified pursuant to Section 301, its
obligations under any other covenant, with respect to such Securities and (ii)
the occurrence of any event specified in clauses (4) and (7) of Section 501
(with respect to any of the obligations described in clause (i) above) shall be
deemed not to be or result in an Event of Default (hereinafter, "covenant
defeasance"), and such Securities shall thereafter be deemed to be not
"Outstanding" for the purposes of any request, demand, authorization,
direction, notice, waiver, consent or declaration or Act of Holders (and the
consequences of any thereof) in connection with Section 801 or Section 1004,
such other covenant specified pursuant to Section 301, but shall continue to be
deemed "Outstanding" for all other purposes hereunder. For this purpose, such
covenant defeasance means that, with respect to such Securities, the Company
may omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such Section or such other covenant,
whether directly or indirectly, by reason of any reference elsewhere herein to
any such Section or such other covenant or by reason of reference in any such
Section or such other covenant to any other provision herein or in any other
document and such omission to comply shall not constitute a Default or an Event
of Default under clauses (4) and (7) of Section 501 or otherwise, as the case
may be, but, except as specified above the remainder of this Indenture and such
Securities and any interest coupons appertaining thereto shall be unaffected
thereby.

SECTION 407.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to application of Section 405
or Section 406 to any Securities of any series:

          (a) the Company shall have deposited or caused to be deposited
irrevocably with the Trustee (or another trustee satisfying the requirements of
Section 609 who shall agree to comply with, and shall be entitled to the
benefits of, the provisions of Sections 404 through 410 inclusive and the last
paragraph of Section 1003 applicable to the Trustee, for purposes of such
Sections also a "Trustee") as trust funds in trust for the purpose of making
the payments referred to in clauses (x) and (y) of this Section 407(a),
specifically pledged as security for, and dedicated solely to, the benefit of
the Holders of such Securities, with written instructions to the Trustee as to
the application thereof, (A) money in an amount (in such currency, currencies
or currency unit or units in which such Securities are then specified as
payable at Stated Maturity), or (B) if Securities of such series are not
subject to repayment at the option of Holders, Government Obligations which
through the payment of interest and principal in respect thereof in accordance
with their terms will provide, not later than one day before the due date of
any payment referred to in clause (x) or (y) of this Section 407(a), money in
an amount or (C) a combination thereof in an amount, sufficient, in the opinion
of a nationally recognized firm of independent certified public accountants or
a nationally recognized investment banking firm expressed in a written
certification thereof delivered to the Trustee, to pay and discharge, and which
shall be applied by the Trustee to pay and discharge, (x) the principal of,
premium, if any, and interest, if any, on such Securities on the Stated
Maturity of


                                       32
<PAGE>   42
such principal or installment of principal or interest and (y) any mandatory
sinking fund payments applicable to such Securities on the date on which such
payments are due and payable in accordance with the terms of this Indenture and
such Securities. Before such a deposit the Company may make arrangements
satisfactory to the Trustee for the redemption of Securities at a future date
or dates in accordance with Article Eleven which shall be given effect in
applying the foregoing.

          (b) No Default or Event of Default with respect to the Securities of
that series shall have occurred or be continuing on the date of such a deposit
or shall occur as a result of such a deposit or, insofar as clauses (5) and (6)
of Section 501 are concerned, shall occur at any time during the period ending
on the 91st day after the date of such deposit.

          (c) In the case of an election under Section 405, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of
Counsel to the effect that (i) the Company has received from or there has been
published by, the Internal Revenue Service a ruling, or (ii) since the date of
execution of this Indenture, there has been a change in the applicable U.S.
Federal income tax law, in either case to the effect that, and based thereon
such opinion shall confirm that, the Holders of such Securities and any
interest coupons appertaining thereto will not recognize income, gain or loss
for U.S. Federal income tax purposes as a result of such defeasance and will be
subject to U.S. Federal income tax on the same amount and in the same manner
and at the same times, as would have been the case if such deposit, defeasance
and discharge had not occurred.

          (d) In the case of an election under Section 406, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of
Counsel to the effect that the Holders of such Securities and any interest
coupons appertaining thereto will not recognize income, gain or loss for U.S.
Federal income tax purposes as a result of such covenant defeasance and will b
subject to U.S. Federal income tax on the same amount and in the same manner
and at the same times, as would have been the case if such deposit and covenant
defeasance had not occurred.

          (e) The Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent to the defeasance under Section 405 or the covenant defeasance under
Section 406 (as the case may be) have been complied with.

          (f) Such defeasance or covenant defeasance shall be effected in
compliance with any additional or substitute terms, conditions or limitations
which may be imposed on the Company in connection therewith as contemplated by
Section 301.

          (g) At the time of such deposit: (A) no Default in the payment of
principal of (or premium, if any) or interest on any Senior Debt shall have
occurred and be continuing or (B) no other Event of Default with respect to any
Senior Debt shall have occurred and be continuing and shall have resulted in
such Senior Debt becoming or being declared due and payable prior to the date
on which it would otherwise have become due and payable, or, in the case of
either clause (A) or clause (B) above, each such Default or Event of Default
shall have been cured or waived or shall have ceased to exist.


                                       33
<PAGE>   43

SECTION 408.  Deposited Money and Government Obligations to be Held in Trust.

          Subject to the provisions of the last paragraph of Section 1003, all
money and Government Obligations (or other property as may be provided pursuant
to Section 301) (including the proceeds thereof) deposited with the Trustee
pursuant to Section 407 in respect of any Securities of any series shall be
held in trust and applied by the Trustee, in accordance with the provisions of
such Securities and this Indenture, to the payment, either directly or through
any Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Holders of such Securities of all sums due and to
become due thereon in respect of principal, premium, if any, and interest, if
any, but such money need not be segregated from other funds except as provided
herein and except to the extent required by law.

SECTION 409.  Repayment to Company.

          The Trustee (and any Paying Agent) shall promptly pay to the Company
upon Company Request any excess money or securities held by them at any time.

          The provisions of the last paragraph of Section 1003 shall apply to
any money or securities held by the Trustee or any Paying Agent under this
Article Four that remain unclaimed for two years after the Maturity of any
series of Securities for which money or securities have been deposited pursuant
to Section 407(a).

SECTION 410.  Indemnity for Government Obligations.

          The Company shall pay, and shall indemnify the Trustee against, any
tax, fee or other charge imposed on or assessed against Government Obligations
deposited pursuant to this Article or the principal and interest and any other
amount received on such Government Obligations.

SECTION 411.  Reinstatement.

          If the Trustee or Paying Agent is unable to apply any money or U.S.
Government Obligations deposited with respect to Securities of any series in
accordance with Section 401 by reason of any legal proceeding or by reason of
any order or judgment of any court or governmental authority enjoining,
restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture with respect to the Securities of such series
and the Securities of such series shall be revived and reinstated as though no
deposit had occurred pursuant to Section 401 or Section 407 until such time as
the Trustee or Paying Agent is permitted to apply all such money or U.S.
Government Obligations in accordance with Section 401 or Section 407; provided,
however, that if the Company has made any payment of principal of (or premium,
if any), or interest on or any Additional Amounts with respect to any
Securities because of the reinstatement of its obligations, the Company shall
be subrogated to the rights of the Holders of such Securities to receive such
payment from the money or U.S. Government Obligations held by the Trustee or
Paying Agent.


                                       34
<PAGE>   44

                                  ARTICLE FIVE

                                    REMEDIES

SECTION 501.  Events of Default.

          "Event of Default", wherever used herein with respect to Securities
of any series, means any one of the following events (whatever the reason for
such Event of Default and whether it shall be occasioned by the provisions of
Article Thirteen or be voluntary or involuntary or be effected by operation of
law or pursuant to any judgment, decree or order of any court or any order,
rule or regulation of any administrative or governmental body), unless it is
either inapplicable to a particular series or it is specifically deleted or
modified in or pursuant to the supplemental indenture or Board Resolution
establishing such series of Securities or in the form of Security for such
series:

          (1) default in the payment of any interest on or any Additional
    Amounts with respect to any Security of that series when such interest or
    Additional Amounts become due and payable, and continuance of such default
    for a period of 30 days; or

          (2) default in the payment of the principal of (or premium, if any,
    on) any Security of that series at its Maturity; or

          (3) default in the deposit of any mandatory sinking fund payment,
    when and as due by the terms of a Security of that series and continuance
    of such default for a period of 30 days; or

          (4) default in the performance or breach of any covenant or warranty
    of the Company in this Indenture (other than a covenant or warranty a
    default in whose performance or whose breach is elsewhere in this Section
    specifically dealt with or which has expressly been included in this
    Indenture solely for the benefit of one or more series of Securities other
    than that series), and continuance of such default or breach for a period
    of 90 days after there has been given, by registered or certified mail, to
    the Company by the Trustee or to the Company and the Trustee by the Holders
    of at least 25% in principal amount of all Outstanding Securities a written
    notice specifying such default or breach and requiring it to be remedied
    and stating that such notice is a "Notice of Default" hereunder; or

          (5) the entry by a court having jurisdiction in the premises of (A) a
    decree or order for relief in respect of the Company in an involuntary case
    or proceeding under any applicable Federal or State bankruptcy, insolvency,
    reorganization or other similar law or (B) a decree or order adjudging the
    Company a bankrupt or insolvent, or approving as properly filed a petition
    seeking reorganization, arrangement, adjustment or composition of or in
    respect of the Company under any applicable Federal or State law, or
    appointing a custodian, receiver, liquidator, assignee, trustee,
    sequestrator or other similar official of the Company or of any substantial
    part of its property, or ordering the winding up or liquidation of its


                                       35
<PAGE>   45

    affairs, and the continuance of any such decree or order for relief or any
    such other decree or order unstayed and in effect for a period of 90
    consecutive days; or

          (6) the commencement by the Company of a voluntary case or proceeding
    under any applicable Federal or State bankruptcy, insolvency,
    reorganization or other similar law or of any other case or proceeding to
    be adjudicated a bankrupt or insolvent, or the consent by it to the entry
    of a decree or order for relief in respect of the Company in an involuntary
    case or proceeding under any applicable Federal or State bankruptcy,
    insolvency, reorganization or other similar law or to the commencement of
    any bankruptcy or insolvency case or proceeding against it, or the filing
    by it, of a petition or answer or consent seeking reorganization or relief
    under any applicable Federal or State law, or the consent by it to the
    filing of such petition or to the appointment of or taking possession by a
    custodian, receiver, liquidator, assignee, trustee, sequestrator or similar
    official of the Company or of any substantial part of its property, or the
    making by it of an assignment for the benefit of creditors, or the
    admission by it in writing of its inability to pay its debts generally as
    they become due, or the taking of corporate action by the Company in
    furtherance of any such action; or

          (7) any other Event of Default provided with respect to Securities of
    that series.

          Notwithstanding the foregoing provisions of this Section 501, if the
principal of (and premium, if any) or any interest on, or Additional Amounts
with respect to, any Security is payable in a currency or currencies (including
a composite currency) other than Dollars and such currency (or currencies) is
(or are) not available to the Company for making payment thereof due to the
imposition of exchange controls or other circumstances beyond the control of
the Company (a "Conversion Event"), the Company will be entitled to satisfy its
obligations to Holders of the Securities by making such payment in Dollars in
an amount equal to the Dollar equivalent of the amount payable in such other
currency, as determined by the Company by reference to the noon buying rate in
The City of New York for cable transfers for such currency ("Exchange Rate"),
as such Exchange Rate is certified for customs purposes by the Federal Reserve
Bank of New York on the date of such payment, or, if such rate is not then
available, on the basis of the most recently available Exchange Rate.
Notwithstanding the foregoing provisions of this Section 501, any payment made
under such circumstances in Dollars where the required payment is in a currency
other than Dollars will not constitute an Event of Default under this
Indenture.

          Promptly after the occurrence of a Conversion Event with respect to
Securities of any series, the Company shall give written notice thereof to the
Trustee; and the Trustee, promptly after receipt of such notice, shall give
notice thereof in the manner provided in Section 107 to the Holders of such
series. Promptly after the making of any payment in Dollars as a result of a
Conversion Event with respect to Securities of any series, the Company shall
give notice in the manner provided in Section 107 to the Holders of such
series, setting forth the applicable Exchange Rate and describing the
calculation of such payments.


                                       36
<PAGE>   46

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default with respect to any Securities of any series
at the time Outstanding occurs and is continuing, then in every such case the
Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of (i) the series affected by such default (in the case
of an Event of Default described in clause (1), (2), (3) or (7) of Section 501)
or (ii) all series of Securities (subject to the immediately following
sentence, in the case of an Event of Default described in clause (4) of Section
501) may declare the principal amount (or, if any such Securities are Original
Issue Discount Securities, such portion of the principal amount as may be
specified in the terms of that series) of all of the Securities of the series
affected by such default or all series, as the case may be, to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by Holders), and upon any such declaration such principal amount (or
specified amount) shall become immediately due and payable. If an Event of
Default described in clause (5) or (6) of Section 501 shall occur, the
principal amount of the Outstanding Securities of all series ipso facto shall
become and be immediately due and payable without any declaration or other act
on the part of the Trustee or any Holder.

          At any time after such a declaration of acceleration with respect to
Securities of any series (or of all series, as the case may be) has been made
and before a judgment or decree for payment of the money due has been obtained
by the Trustee as hereinafter in this Article provided, the Holders of a
majority in principal amount of the Outstanding Securities of that series (or
of all series, as the case may be), by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

          (1) the Company has paid or deposited with the Trustee a sum
sufficient to pay

          (A) all overdue interest on, and any Additional Amounts with respect
    to, all Securities of that series (or of all series, as the case may be),

          (B) the principal of (and premium, if any, on) any Securities of that
    series (or of all series, as the case may be) which have become due
    otherwise than by such declaration of acceleration and interest thereon at
    the rate or rates prescribed therefor in such Securities (in the case of
    Original Issue Discount Securities, the Securities' Yield to Maturity),

          (C) to the extent that payment of such interest is lawful, interest
    upon overdue interest and any Additional Amounts at the rate or rates
    prescribed therefor in such Securities (in the case of Original Issue
    Discount Securities, the Securities' Yield to Maturity), and

          (D) all sums paid or advanced by the Trustee hereunder and the
    reasonable compensation, expenses, disbursements and advances of the
    Trustee, its agents and counsel;


                                       37
<PAGE>   47

    and

          (2) all Events of Default with respect to Securities of that series
    (or of all series, as the case may be), other than the non-payment of the
    principal of Securities of that series (or of all series, as the case may
    be) which have become due solely by such declaration of acceleration, have
    been cured or waived as provided in Section 512.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

    The Company covenants that if

          (1) default is made in the payment of any installment of interest on,
    or any Additional Amounts with respect to, any Security of any series when
    such interest or Additional Amounts shall have become due and payable and
    such default continues for a period of 30 days, or

          (2) default is made in the payment of the principal of (or premium,
    if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and Additional
Amounts and, to the extent that payment of such interest shall be legally
enforceable, interest on any overdue principal (and premium, if any) and on any
overdue interest and Additional Amounts, at the rate or rates prescribed
therefor in such Securities (or in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity), and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

          If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute
a judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon such Securities, wherever
situated.

          If an Event of Default with respect to Securities of any series
occurs and is continuing, the Trustee may in its discretion proceed to protect
and enforce its rights and the rights of the Holders of Securities of such
series by such appropriate judicial proceedings as the Trustee shall deem most
effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.


                                       38
<PAGE>   48

SECTION 504.  Trustee May File Proofs of Claim.

          In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal (or lesser amount
in the case of Original Issue Discount Securities) of the Securities shall then
be due and payable as therein expressed or by declaration or otherwise and
irrespective of whether the Trustee shall have made any demand on the Company
for the payment of overdue principal (and premium, if any), interest or any
Additional Amounts) shall be entitled and empowered, by intervention in such
proceeding or otherwise,

          (i) to file and prove a claim for the whole amount of principal (or
    lesser amount in the case of Original Issue Discount Securities) (and
    premium, if any) and interest and any Additional Amounts owing and unpaid
    in respect of the Securities and to file such other papers or documents as
    may be necessary or advisable in order to have the claims of the Trustee
    (including any claim for the reasonable compensation, expenses,
    disbursements and advances of the Trustee, its agents and counsel) and of
    the Holders allowed in such judicial proceeding, and

          (ii) to collect and receive any monies or other property payable or
    deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders,
to pay to the Trustee any amount due it for the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel,
and any other amounts due the Trustee under Section 607.

          Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceedings; provided, however,
that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official.

SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or 
Coupons.

          All rights of action and claim under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without possession of any of the
Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision


                                       39
<PAGE>   49

for the payment of the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, be for the ratable benefit of
the Holders of the Securities in respect of which such judgment has been
recovered.

SECTION 506.  Application of Money Collected.

          Subject to Article Thirteen, any money collected by the Trustee
pursuant to this Article shall be applied in the following order, at the date
or dates fixed by the Trustee and, in case of the distribution of such money on
account of principal (or premium, if any), interest or any Additional Amounts,
upon presentation of the Securities, and the notation thereon of the payment if
only partially paid and upon surrender thereof if fully paid:

          FIRST: To the payment of all amounts due the Trustee under Section
    607;

          SECOND: To the payment of the amounts then due and unpaid for
    principal of (and premium, if any) and interest on and any Additional
    Amounts with respect to the Securities in respect of which or for the
    benefit of which such money has been collected, ratably, without preference
    or priority of any kind, according to the amounts due and payable on such
    Securities for principal (and premium, if any), interest and Additional
    Amounts, respectively; and

          THIRD: The balance, if any, to the Person or Persons entitled
    thereto.

          To the fullest extent allowed under applicable law, if for the
purpose of obtaining judgment against the Company in any court it is necessary
to convert the sum due in respect of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to the Securities of any
series (the "Required Currency") into a currency in which a judgment will be
rendered (the "Judgment Currency"), the rate of exchange used shall be the rate
at which in accordance with normal banking procedures the Trustee could
purchase in The City of New York the Required Currency with the Judgment
Currency on the New York Business Day next preceding that on which final
judgment is given. Neither the Company nor the Trustee shall be liable for any
shortfall nor shall it benefit from any windfall in payments to Holders of
Securities under this Section caused by a change in exchange rates between the
time the amount of a judgment against it is calculated as above and the time
the Trustee converts the Judgment Currency into the Required Currency to make
payments under this Section to Holders of Securities, but payment of such
judgment shall discharge all amounts owed by the Company on the claim or claims
underlying such judgment.

SECTION 507.  Limitation on Suits.

          Subject to Section 508, no Holder of any Security of any series shall
have any right to institute any proceeding, judicial or otherwise, with respect
to this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless


                                       40
<PAGE>   50
          (1) an Event of Default with respect to Securities of such series
    shall have occurred and be continuing and such Holder has previously given
    written notice to the Trustee of such continuing Event of Default;

          (2) the Holders of not less than 25% in principal amount of the
    Outstanding Securities of that series shall have made written request to
    the Trustee to institute proceedings in respect of such Event of Default in
    its own name as Trustee hereunder;

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

          (4) the Trustee for 60 days after its receipt of such notice, request
    and offer of indemnity has failed to institute any such proceeding; and

          (5) no direction inconsistent with such written request has been
    given to the Trustee during such 60-day period by the Holders of a majority
    in principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and 
Interest.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 307) interest on and any Additional Amounts with respect to such
Security on the Stated Maturity or Maturities expressed in such Security (or,
in the case of redemption, on the Redemption Date) and to institute suit for
the enforcement of any such payment, and such rights shall not be impaired or
affected without the consent of such Holder.

SECTION 509.   Restoration of Rights and Remedies.

          If the Trustee or any Holder of any Security has instituted any
proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every
such case the Company, the Trustee and the Holders shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder, and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been
instituted.


                                       41
<PAGE>   51

SECTION 510.  Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last
paragraph of Section 306, no right or remedy herein conferred upon or reserved
to the Trustee or to the Holders is intended to be exclusive of any other right
or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent
the concurrent assertion or employment of any other appropriate right or
remedy.

SECTION 511.  Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any
Securities to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event
of Default or an acquiescence therein. Every right and remedy given by this
Article or by law to the Trustee or to the Holders may be exercised from time
to time, and as often as may be deemed expedient, by the Trustee or by the
Holders, as the case may be.

SECTION 512.  Control by Holders.

          With respect to Securities of any series, the Holders of a majority
in principal amount of the Outstanding Securities of such series shall have the
right to direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, relating to or arising under an Event of Default described in
clause (1), (2), (3) or (7) of Section 501, and with respect to all Securities
the Holders of a majority in principal amount of all Outstanding Securities
shall have the right to direct the time, method and place of conducting any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, not relating to or arising under such an Event of Default,
provided that in each such case

          (1) such direction shall not be in conflict with any rule of law or
    with this Indenture, and

          (2) the Trustee may take any other action deemed proper by the
    Trustee which is not inconsistent with such direction.

SECTION 513.  Waiver of Past Defaults.

          The Holders of a majority in principal amount of the Outstanding
Securities of any series may on behalf of the Holders of all the Securities of
such series waive any past default hereunder with respect to such series and
its consequences, and the Holders of a majority in principal amount of all
Outstanding Securities may on behalf of the Holders of all Securities waive any
other past default hereunder and its consequences, except in each case a
default


                                       42
<PAGE>   52

          (1) in the payment of the principal of (or premium, if any) or
    interest on, or any Additional Amounts with respect to, any Security, or

          (2) in respect of a covenant or provision hereof which under Article
    Nine cannot be modified or amended without the consent of the Holder of
    each Outstanding Security affected.

          Upon any such waiver, such default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured, for
every purpose of this Indenture; but no such waiver shall extend to any
subsequent or other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

          All parties to this Indenture agree, and each Holder of any Security
by his acceptance thereof shall be deemed to have agreed, that any court may in
its discretion require, in any suit for the enforcement of any right or remedy
under this Indenture, or in any suit against the Trustee for any action taken
or omitted by it as Trustee, the filing by any party litigant in such suit of
an undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the
provisions of this Section shall not apply to any suit instituted by the
Company, to any suit instituted by the Trustee, to any suit instituted by any
Holder, or group of Holders, holding in the aggregate more than 10% in
principal amount of the Outstanding Securities of any series, or to any suit
instituted by any Holder for the enforcement of the payment of the principal of
(or premium, if any) or interest on, or any Additional Amounts with respect to,
any Security on or after the Stated Maturity or Maturities expressed in such
Security (or, in the case of redemption, on or after the Redemption Date).

SECTION 515.   Waiver of Stay or Extension Laws.

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


                                       43
<PAGE>   53

                                  ARTICLE SIX

                                  THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

          (a)  Except during the continuance of an Event of Default with respect
    to the Securities of any series,

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

               (2) in the absence of bad faith on its part, the Trustee may
          conclusively rely, as to the truth of the statements and the
          correctness of the opinions expressed therein, upon certificates or
          opinions furnished to the Trustee and conforming to the requirements
          of this Indenture; but in the case of any such certificates or
          opinions which by any provision hereof are specifically required to
          be furnished to the Trustee, the Trustee shall be under a duty to
          examine the same to determine whether or not they conform to the
          requirements of this Indenture.

          (b) In case an Event of Default has occurred and is continuing with
    respect to the Securities of any series, the Trustee shall exercise such of
    the rights and powers vested in it by this Indenture, and use the same
    degree of care and skill in their exercise, as a prudent man would exercise
    or use under the circumstances in the conduct of his own affairs.

          (c) No provision of this Indenture shall be construed to relieve the
    Trustee from liability for its own negligent action, its own negligent
    failure to act or its own willful misconduct, except that

               (1) this Subsection shall not be construed to limit the effect
          of Subsection (a) of this Section;

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

               (3) the Trustee shall not be liable with respect to any action
          taken or omitted to be taken by it in good faith in accordance with
          the direction of the Holders of a majority in principal amount of the
          Outstanding Securities of any series or of all series, determined as
          provided in Section 511, relating to the time, method and place of
          conducting any proceeding for any remedy available to the Trustee, or
          exercising any trust or power conferred upon the Trustee, under this
          Indenture with respect to the Securities of such series; and


                                       44
<PAGE>   54
               (4) no provision of this Indenture shall require the Trustee to
          expend or risk its own funds or otherwise incur any financial
          liability in the performance of any of its duties hereunder, or in
          the exercise of any of its rights or powers, if it shall have
          reasonable grounds for believing that repayment of such funds or
          indemnity satisfactory to it against such risk or liability is not
          assured to it.

          (d) Whether or not therein expressly so provided, every provision of
    this Indenture relating to the conduct or affecting the liability of or
    affording protection to the Trustee shall be subject to the provisions of
    this Section.

SECTION 602.  Notice of Defaults.

          Within 90 days after the occurrence of any default hereunder with
respect to the Securities of any series, the Trustee shall give notice of such
default hereunder known to the Trustee to all Holders of Securities of such
series in the manner provided in Section 107, unless such default shall have
been cured or waived; provided, however, that, except in the case of a default
in the payment of the principal of (or premium, if any) or interest on, or any
Additional Amounts with respect to, any Security of such series or in the
payment of any sinking fund installment with respect to Securities of such
series, the Trustee shall be protected in withholding such notice if and so
long as the board of directors, the executive committee or a trust committee of
directors or Responsible Officers of the Trustee in good faith determines that
the withholding of such notice is in the interest of the Holders of Securities
of such series; and provided, further, that in the case of any default of the
character specified in Section 501(4) with respect to Securities of such
series, no such notice to Holders shall be given until at least 30 days after
the occurrence thereof. For the purpose of this Section, the term "default"
means any event, act or condition which is, or after notice or lapse of time or
both would become, an Event of Default with respect to Securities of such
series.

SECTION 603.  Certain Rights of Trustee.

          Subject to the provisions of Section 601:

          (a) the Trustee may rely and shall be protected in acting or
    refraining from acting upon any resolution, certificate, statement,
    instrument, opinion, report, notice, request, direction, consent, order,
    bond, debenture, note, coupon, other evidence of indebtedness or other
    paper or document believed by it to be genuine and to have been signed or
    presented by the proper party or parties;

          (b) any request or direction of the Company mentioned herein shall be
    sufficiently evidenced by a Company Request or Company Order and any
    resolution of the Board of Directors may be sufficiently evidenced by a
    Board Resolution;

          (c) whenever in the administration of this Indenture the Trustee
    shall deem it desirable that a matter be proved or established prior to
    taking, suffering or omitting any


                                       45
<PAGE>   55

    action hereunder, the Trustee (unless other evidence be herein specifically
    prescribed) may, in the absence of bad faith on its part, rely upon an
    Officers' Certificate;

          (d) the Trustee may consult with counsel and the written advice of
    such counsel or any Opinion of Counsel shall be full and complete
    authorization and protection in respect of any action taken, suffered or
    omitted by it hereunder in good faith and in reliance thereon;

          (e) the Trustee shall be under no obligation to exercise any of the
    rights or powers vested in it by this Indenture at the request or direction
    of any of the Holders pursuant to this Indenture, unless such Holders shall
    have offered to the Trustee security or indemnity satisfactory to it
    against the costs, expenses and liabilities which might be incurred by it
    in compliance with such request or direction;

          (f) the Trustee shall not be bound to make any investigation into the
    facts or matters stated in any resolution, certificate, statement,
    instrument, opinion, report, notice, request, direction, consent, order,
    bond, debenture, note, coupon, other evidence of indebtedness or other
    paper or document, but the Trustee, in its discretion, may make such
    further inquiry or investigation into such facts or matters as it may see
    fit, and, if the Trustee shall determine to make such further inquiry or
    investigation, it shall be entitled to examine the books, records and
    premises of the Company, personally or by agent or attorney; and

          (g) the Trustee may execute any of the trusts or powers hereunder or
    perform any duties hereunder either directly or by or through agents or
    attorneys and, except for any Affiliates of the Trustee, the Trustee shall
    not be responsible for any misconduct or negligence on the part of any
    agent or attorney appointed with due care by it hereunder.

SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and the Trustee assumes no responsibility for their correctness.
The Trustee makes no representations as to the validity or sufficiency of this
Indenture or of the Securities. The Trustee shall not be accountable for the
use or application by the Company of Securities or the proceeds thereof.

SECTION 605.  May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to
Sections 608 and 613, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.


                                       46
<PAGE>   56

SECTION 606.  Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.

SECTION 607.  Compensation and Reimbursement.

          The Company agrees

          (1) to pay to the Trustee from time to time compensation for all
    services rendered by it hereunder (which compensation shall not be limited
    by any provision of law in regard to the compensation of a trustee of an
    express trust);

          (2) except as otherwise expressly provided herein, to reimburse the
    Trustee upon its request for all reasonable expenses, disbursements and
    advances incurred or made by the Trustee in accordance with any provision
    of this Indenture (including the compensation and the reasonable expenses
    and disbursements of its agents and counsel), except any such expense,
    disbursement or advance as may be attributable to its negligence or bad
    faith; and

          (3) to indemnify the Trustee and each of its directors, officers,
    employees, agents and/or representatives for, and to hold each of them
    harmless against, any loss, liability or expense incurred without
    negligence or bad faith on each of their part, arising out of or in
    connection with the acceptance or administration of the trust or trusts
    hereunder, including the costs and expenses of defending themselves against
    any claim or liability in connection with the exercise or performance of
    any of the Trustee's powers or duties hereunder.

          As security for the performance of the obligations of the Company
under this Section, the Trustee shall have a lien prior to the Securities upon
all property and funds held or collected by the Trustee as such, except funds
held in trust for the payment of principal of, premium, if any, or interest, if
any, on, or any Additional Amounts with respect to, particular Securities.

          Any expenses and compensation for any services rendered by the
Trustee after the occurrence of an Event of Default specified in clause (5) or
(6) of Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

          The provisions of this Section shall survive the termination of this
Indenture.

SECTION 608.  Disqualification; Conflicting Interests.

          (a) If the Trustee has or shall acquire any conflicting interest, as
    defined in this Section, with respect to the Securities of any series, it
    shall, within 90 days after ascertaining that it has such conflicting
    interest, either eliminate such conflicting interest or resign with


                                       47
<PAGE>   57

    respect to the Securities of that series in the manner and with the effect
    hereinafter specified in this Article.

          (b) In the event that the Trustee shall fail to comply with the
    provisions of Subsection (a) of this Section with respect to the Securities
    of any series, the Trustee shall, within 10 days after the expiration of
    such 90-day period, transmit by mail to all Holders of Securities of that
    series, as their names and addresses appear in the Security Register,
    notice of such failure.

          (c) For the purposes of this Section, the term "conflicting interest"
    shall have the meaning specified in Section 310(b) of the Trust Indenture
    Act and the Trustee shall comply with Section 310(b) of the Trust Indenture
    Act; provided that there shall be excluded from the operation of Section
    310(b)(1) of the Trust Indenture Act with respect to the Securities of any
    series any indenture or indentures under which other securities, or
    certificates of interest or participation in other securities, of the
    Company are outstanding, if the requirements for such exclusion set forth
    in Section 310(b)(1) of the Trust Indenture Act are met. For purposes of
    the preceding sentence, the optional provision permitted by the second
    sentence of Section 310(b)(9) of the Trust Indenture Act shall be
    applicable.

SECTION 609.  Corporate Trustee Required; Eligibility.

          There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States of
America, any State thereof or the District of Columbia, authorized under such
laws to exercise corporate trust powers, having a combined capital and surplus
of at least $50,000,000 and subject to supervision or examination by Federal or
State (or District of Columbia) authority. If such corporation publishes
reports of condition at least annually, pursuant to law or to the requirements
of said supervising or examining authority, then for the purposes of this
Section, the combined capital and surplus of such corporation shall be deemed
to be its combined capital and surplus as set forth in its most recent report
of condition so published. If at any time the Trustee shall cease to be
eligible in accordance with the provisions of this Section, it shall resign
immediately in the manner and with the effect hereinafter specified in this
Article.

          The Indenture shall always have a Trustee who satisfies the
requirements of Sections 310(a)(1), 310(a)(2) and 310(a)(5) of the Trust
Indenture Act.

SECTION 610.  Resignation and Removal; Appointment of Successor.

          (a) No resignation or removal of the Trustee and no appointment of a
    successor Trustee pursuant to this Article shall become effective until the
    acceptance of appointment by the successor Trustee in accordance with the
    applicable requirements of Section 611.

          (b) The Trustee may resign at any time with respect to the Securities
    of one or more series by giving written notice thereof to the Company. If
    the instrument of acceptance by a successor Trustee required by Section 611
    shall not have been delivered to the resigning


                                       48
<PAGE>   58

    Trustee within 30 days after the giving of such notice of resignation, the
    resigning Trustee may petition any court of competent jurisdiction for the
    appointment of a successor Trustee with respect to the Securities of such
    series.

          (c)  The Trustee may be removed at any time with respect to the
    Securities of any series by Act of the Holders of a majority in principal
    amount of the Outstanding Securities of such series, delivered to the
    Trustee and to the Company.

          (d)  If at any time:

               (1) the Trustee shall fail to comply with Section 608(a) after
          written request therefor by the Company or by any Holder who has been
          a bona fide Holder of a Security for at least six months, or

               (2) the Trustee shall cease to be eligible under Section 609 and
          shall fail to resign after written request therefor by the Company or
          by any such Holder of Securities, or

               (3) the Trustee shall become incapable of acting or shall be
          adjudged a bankrupt or insolvent or a receiver of the Trustee or of
          its property shall be appointed or any public officer shall take
          charge or control of the Trustee or of its property or affairs for
          the purpose of rehabilitation, conservation or liquidation, then, in
          any such case, (i) the Company by a Board Resolution may remove the
          Trustee with respect to all Securities, or (ii) subject to Section
          513, any Holder who has been a bona fide Holder of a Security for at
          least six months may, on behalf of himself and all others similarly
          situated, petition any court of competent jurisdiction for the
          removal of the Trustee with respect to all Securities and the
          appointment of a successor Trustee or Trustees.

          (e) If the Trustee shall resign, be removed or become incapable of
    acting, or if a vacancy shall occur in the office of Trustee for any cause,
    with respect to the Securities of one or more series, the Company, by a
    Board Resolution, shall promptly appoint a successor Trustee or Trustees
    with respect to the Securities of that or those series (it being understood
    that any such successor Trustee may be appointed with respect to the
    Securities of one or more or all of such series and that at any time there
    shall be only one Trustee with respect to the Securities of any particular
    series) and such successor Trustee or Trustees shall comply with the
    applicable requirements of Section 611. If no successor Trustee with
    respect to the Securities of any series shall have been so appointed by the
    Company and accepted appointment in the manner required by Section 611, any
    Holder who has been a bona fide Holder of a Security of such series for at
    least six months may, on behalf of himself and all others similarly
    situated, petition any court of competent jurisdiction for the appointment
    of a successor Trustee with respect to the Securities of such series.


                                       49
<PAGE>   59

          (f) The Company shall give notice of each resignation and each
    removal of the Trustee with respect to the Securities of any series and
    each appointment of a successor Trustee with respect to the Securities of
    any series by mailing written notice of such event by first-class mail,
    postage prepaid, to all Holders of Securities of such series as their names
    and addresses appear in the Security Register. Each notice shall include
    the name of the successor Trustee with respect to the Securities of such
    series and the address of its Corporate Trust Office.

SECTION 611.  Acceptance of Appointment by Successor.

          (a) In case of the appointment hereunder of a successor Trustee with
    respect to all Securities, every such successor Trustee so appointed shall
    execute, acknowledge and deliver to the Company and to the retiring Trustee
    an instrument accepting such appointment, and thereupon the resignation or
    removal of the retiring Trustee shall become effective and such successor
    Trustee, without any further act, deed or conveyance, shall become vested
    with all the rights, powers, trusts and duties of the retiring Trustee;
    but, on the request of the Company or the successor Trustee, such retiring
    Trustee shall, upon payment of its charges, execute and deliver an
    instrument transferring to such successor Trustee all the rights, powers
    and trusts of the retiring Trustee and shall duly assign, transfer and
    deliver to such successor Trustee all property and money held by such
    retiring Trustee hereunder.

          (b) In case of the appointment hereunder of a successor Trustee with
    respect to the Securities of one or more (but not all) series, the Company,
    the retiring Trustee and each successor Trustee with respect to the
    Securities of one or more series shall execute and deliver an indenture
    supplemental hereto wherein each successor Trustee shall accept such
    appointment and which (1) shall contain such provisions as shall be
    necessary or desirable to transfer and confirm to, and to vest in, each
    successor Trustee all the rights, powers, trusts and duties of the retiring
    Trustee with respect to the Securities of that or those series to which the
    appointment of such successor Trustee relates, (2) if the retiring Trustee
    is not retiring with respect to all Securities, shall contain such
    provisions as shall be deemed necessary or desirable to confirm that all
    the rights, powers, trusts and duties of the retiring Trustee with respect
    to the Securities of that or those series as to which the retiring Trustee
    is not retiring shall continue to be vested in the retiring Trustee and (3)
    shall add to or change any of the provisions of this Indenture as shall be
    necessary to provide for or facilitate the administration of the trusts
    hereunder by more than one Trustee, it being understood that nothing herein
    or in such supplemental indenture shall constitute such Trustees
    co-trustees of the same trust and that each such Trustee shall be trustee
    of a trust or trusts hereunder separate and apart from any trust or trusts
    hereunder administered by any other such Trustee; and upon the execution
    and delivery of such supplemental indenture, the resignation or removal of
    the retiring Trustee shall become effective to the extent provided therein
    and each such successor Trustee, without any further act, deed or
    conveyance, shall become vested with all the rights, powers, trusts and
    duties of the retiring Trustee with respect to the Securities of that or
    those series to which the appointment of such successor Trustee relates;
    but, on request of the Company or any successor Trustee, such retiring
    Trustee shall duly


                                       50
<PAGE>   60

    assign, transfer and deliver to such successor Trustee all property and
    money held by such retiring Trustee hereunder with respect to the
    Securities of that or those series to which the appointment of such
    successor Trustee relates.

          (c) Upon request of any such successor Trustee, the Company shall
    execute any and all instruments for more fully and certainly vesting in and
    confirming to such successor Trustee all such rights, powers and trusts
    referred to in paragraph (a) or (b) of this Section, as the case may be.

          (d) No successor Trustee shall accept its appointment unless at the
    time of such acceptance such successor Trustee shall be qualified and
    eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or
any corporation succeeding to all or substantially all the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder,
provided such corporation shall be otherwise qualified and eligible under this
Article, without the execution or filing of any paper or any further act on the
part of any of the parties hereto. In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.

SECTION 613.  Preferential Collection of Claims Against Company.

          The Trustee shall comply with Section 311(a) of the Trust Indenture
Act, excluding any creditor relationship described in Section 311(b) of the
Trust Indenture Act. A Trustee who has resigned or been removed shall be
subject to Section 311(a) of the Trust Indenture Act to the extent indicated
therein.

SECTION 614.  Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents which shall
be authorized to act on behalf of the Trustee to authenticate Securities issued
upon original issue and upon exchange, registration of transfer or partial
redemption or pursuant to Section 306, and Securities so authenticated shall be
entitled to the benefits of this Indenture and shall be valid and obligatory
for all purposes as if authenticated by the Trustee hereunder. Wherever
reference is made in this Indenture to the authentication and delivery of
Securities by the Trustee or the Trustee's certificate of authentication, such
reference shall be deemed to include authentication and delivery on behalf of
the Trustee by an Authenticating Agent and a certificate of authentication
executed on behalf of the Trustee by an Authenticating Agent. Each
Authenticating Agent shall be acceptable to the Company and shall at all times
be a corporation organized and doing business under the laws


                                      51
<PAGE>   61

of the United States of America, any State thereof or the District of Columbia
having a combined capital and surplus of not less than $50,000,000 or
equivalent amount expressed in a foreign currency and subject to supervision or
examination by Federal or State (or District of Columbia) authority or
authority of such country. If such Authenticating Agent publishes reports of
condition at least annually, pursuant to law or to the requirements of said
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such Authenticating Agent shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published. If at any time an Authenticating Agent shall cease to
be eligible in accordance with the provisions of this Section, such
Authenticating Agent shall resign immediately in the manner and with the effect
specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice
thereof to such Authenticating Agent and to the Company. Upon receiving such a
notice of resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall mail written notice of
such appointment by first-class mail, postage prepaid, to all Holders as their
names and addresses appear in the Security Register. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder,
with like effect as if originally named as an Authenticating Agent. No
successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

          If an appointment is made pursuant to this Section, the Securities
may have endorsed thereon, in addition to the Trustee's certificate of
authentication, an alternate certificate of authentication in the following
form:

          "This is one of the Securities of the series designated therein
referred to in the within- mentioned Indenture.


                                       52
<PAGE>   62

                                        --------------------------------------,
                                                    as Trustee


                                        By 
                                           -----------------------------------,
                                                  as Authenticating Agent



                                        By
                                           ------------------------------------,
                                                   Authorized Signatory".


          Notwithstanding any provision of this Section 614 to the contrary, if
at any time any Authenticating Agent appointed hereunder with respect to any
series of Securities shall not also be acting as the Security Registrar
hereunder with respect to any series of Securities, then, in addition to all
other duties of an Authenticating Agent hereunder, such Authenticating Agent
shall also be obligated: (i) to furnish to the Security Registrar promptly all
information necessary to enable the Security Registrar to maintain at all times
an accurate and current Security Register; and (ii) prior to authenticating any
Security denominated in a foreign currency, to ascertain from the Company the
units of such foreign currency that are required to be determined by the
Company pursuant to Section 302.

                                 ARTICLE SEVEN

               HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

          With respect to each series of Securities, the Company will furnish
or cause to be furnished to the Trustee:

          (a) semi-annually, not more than 15 days after each Regular Record
    Date relating to that series (or, if there is no Regular Record Date
    relating to that series, on January 1 and July 1), a list, in such form as
    the Trustee may reasonably require, of the names and addresses of the
    Holders of that series as of such dates, and

          (b) at such other times as the Trustee may request in writing, within
    30 days after the receipt by the Company of any such request, a list of
    similar form and content, such list to be dated as of a date not more than
    15 days prior to the time such list is furnished; provided, that so long as
    the Trustee is the Security Registrar, the Company shall not be required to
    furnish or cause to be furnished such a list to the Trustee. The Company
    shall otherwise comply with Section 310(a) of the Trust Indenture Act.


                                       53
<PAGE>   63

SECTION 702.  Preservation of Information; Communications to Holders.

          (a) The Trustee shall preserve, in as current a form as is reasonably
    practicable, the names and addresses of Holders of each series contained in
    the most recent list furnished to the Trustee as provided in Section 701
    and the names and addresses of Holders of each series received by the
    Trustee in its capacity as Security Registrar, if applicable. The Trustee
    may destroy any list furnished to it as provided in Section 701 upon
    receipt of a new list so furnished. The Trustee shall otherwise comply with
    Section 310(a) of the Trust Indenture Act.

          (b) Holders of Securities may communicate pursuant to Section 312(b)
    the Trust Indenture Act with other Holders with respect to their rights
    under this Indenture or under the Securities.

          (c) Every Holder of Securities, by receiving and holding the same,
    agrees with the Company and the Trustee that neither the Company nor the
    Trustee nor any agent of either of them shall be held accountable by reason
    of the disclosure of any such information as to the names and addresses of
    the Holders in accordance with Section 702(b), regardless of the source
    from which such information was derived, and that the Trustee shall not be
    held accountable by reason of mailing any material pursuant to a request
    made under Section 702(b). The Company, the Trustee, the Security Registrar
    and any other Person shall have the protection of Section 312(c) of the
    Trust Indenture Act.

SECTION 703.  Reports by Trustee.

          (a)  Within 60 days after May 15 of each year after the execution of
    this Indenture, the Trustee shall transmit by mail to Holders a brief
    report dated as of such May 15 that complies with Section 313(a) of the
    Trust Indenture Act.

          (b)  The Trustee shall comply with Section 313(b) of the Trust
    Indenture Act.

          (c)  Reports pursuant to this Section shall be transmitted by mail as
    required by Sections 313(c) and 313(d) of the Trust Indenture Act:

               (1) to all Holders of Securities, as the names and addresses of
          such Holders appear in the Security Register;

               (2) to such Holders of Securities as have, within the two years
          preceding such transmissions, filed their names and addresses with
          the Trustee for that purpose; and

               (3) except in the case of reports pursuant to Subsection (b) of
          this Section, to each Holder of a Security whose name and address is
          preserved at the time by the Trustee, as provided in Section 702(a).


                                       54
<PAGE>   64

          (d) A copy of each report pursuant to Subsection (a) or (b) of this
    Section 703 shall, at the time of its transmission to Holders, be filed by
    the Trustee with each stock exchange upon which any Securities are listed,
    with the Commission and with the Company. The Company will notify the
    Trustee when any Securities are listed on any stock exchange.

SECTION 704.  Reports by Company.

          The Company shall file with the Trustee, within 15 days after the
Company is required to file the same with the Commission, copies of the annual
reports and of the information, documents and other reports (or copies of such
portions of any of the foregoing as the Commission may from time to time by
rules and regulations prescribe) which the Company may be required to file with
the Commission pursuant to Section 13 or Section 15(d) of the Securities
Exchange Act of 1934, as amended, and shall otherwise comply with Section
314(a) of the Trust Indenture Act.

                                 ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, unless:

          (1) the Person formed by such consolidation or into which the Company
    is merged or the Person which acquires by conveyance or transfer, or which
    leases, the properties and assets of the Company substantially as an
    entirety shall be a corporation, partnership or trust and shall expressly
    assume, by an indenture supplemental hereto, executed and delivered to the
    Trustee, in form satisfactory to the Trustee, the due and punctual payment
    of the principal of (and premium, if any) and interest on and any
    Additional Amounts with respect to all the Securities and the performance
    of every covenant of this Indenture on the part of the Company to be
    performed or observed;

          (2) immediately after giving effect to such transaction, no Event of
    Default, and no event, act or condition which, after notice or lapse of
    time or both, would become an Event of Default, shall have happened and be
    continuing; and

          (3) the Company shall have delivered to the Trustee an Officers'
    Certificate and an Opinion of Counsel, each stating that such
    consolidation, merger, conveyance, transfer or lease and, if a supplemental
    indenture is required in connection with such transaction, such
    supplemental indenture comply with this Article and that all conditions
    precedent herein provided for relating to such transaction have been
    complied with.


                                       55
<PAGE>   65

SECTION 802.  Successor Person Substituted.

          Upon any consolidation by the Company with or merger by the Company
into any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety in accordance with
Section 801, the successor Person formed by such consolidation or into which
the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except
in the case of such lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.

                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders.

          Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, for any of the following purposes:

          (1) to evidence the succession of another Person to the Company and
    the assumption by any such successor of the covenants of the Company herein
    and in the Securities; or

          (2) to add to the covenants of the Company for the benefit of the
    Holders of all or any series of Securities (and if such covenants are to be
    for the benefit of less than all series of Securities, stating that such
    covenants are expressly being included solely for the benefit of such
    series), to convey, transfer, assign, mortgage or pledge any property to or
    with the Trustee or otherwise secure any series of the Securities or to
    surrender any right or power herein conferred upon the Company; or

          (3) to add any additional Events of Default with respect to all or
    any series of the Securities (and, if such Event of Default is applicable
    to less than all series of Securities, specifying the series to which such
    Event of Default is applicable); or

          (4) to change or eliminate any of the provisions of this Indenture,
    provided that any such change or elimination shall become effective only
    when there is no Security Outstanding of any series created prior to the
    execution of such supplemental indenture which is adversely affected by
    such change in or elimination of such provision; or

          (5) to establish the form or terms of Securities of any series as
    permitted by Sections 201 and 301; or


                                       56
<PAGE>   66

          (6) to supplement any of the provisions of this Indenture to such
    extent as shall be necessary to permit or facilitate the defeasance and
    discharge of any series of Securities pursuant to Section 401; provided,
    however, that any such action shall not adversely affect the interest of
    the Holders of Securities of such series or any other series of Securities
    in any material respect; or

          (7) to evidence and provide for the acceptance of appointment
    hereunder by a successor Trustee with respect to the Securities of one or
    more series and to add to or change any of the provisions of this Indenture
    as shall be necessary to provide for or facilitate the administration of
    the trusts hereunder by more than one Trustee, pursuant to the requirements
    of Section 611(b); or

          (8) to cure any ambiguity, to correct or supplement any provision
    herein which may be defective or inconsistent with any other provision
    herein, or to make any other provisions with respect to matters or
    questions arising under this Indenture, provided such other provisions as
    may be made shall not adversely affect the interests of the Holders of
    Securities of any series in any material respect.

SECTION 902.  Supplemental Indentures With Consent of Holders.

          With the consent of the Holders of a majority in principal amount of
the Outstanding Securities of all series affected by such supplemental
indenture (acting as one class), by Act of said Holders delivered to the
Company and the Trustee, the Company, when authorized by a Board Resolution,
and the Trustee may enter into an indenture or indentures supplemental hereto
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or of modifying in any
manner the rights of the Holders of Securities of such series under this
Indenture; provided, however, that no such supplemental indenture shall,
without the consent of the Holder of each Outstanding Security affected
thereby,

          (1) change the Stated Maturity of the principal of, or any
    installment of principal of or interest on, any Security, or reduce the
    principal amount thereof or the rate of interest thereon, any Additional
    Amounts with respect thereto or any premium payable upon the redemption
    thereof, or change any obligation of the Company to pay Additional Amounts
    (except as contemplated by Section 801(1) and permitted by Section 901(1)),
    or reduce the amount of the principal of an Original Issue Discount
    Security that would be due and payable upon a declaration of acceleration
    of the Maturity thereof pursuant to Section 502, or change any Place of
    Payment where, or the coin or currency or currencies (including composite
    currencies) in which, any Security or any premium or any interest thereon
    or Additional Amounts with respect thereto is payable, or impair the right
    to institute suit for the enforcement of any such payment on or after the
    Stated Maturity thereof (or, in the case of redemption, on or after the
    Redemption Date) or modify the provisions of this Indenture with respect to
    the subordination of any Security in a manner adverse to the Holder
    thereof, or


                                       57
<PAGE>   67

          (2) reduce the percentage in principal amount of Outstanding
    Securities, the consent of whose Holders is required for any such
    supplemental indenture, or the consent of whose Holders is required for any
    waiver (of compliance with certain provisions of this Indenture or certain
    defaults hereunder and their consequences) provided for in this Indenture,
    or

          (3) modify any of the provisions of this Section, Section 512 or
    Section 1006, except to increase any such percentage or to provide with
    respect to any particular series the right to condition the effectiveness
    of any supplemental indenture as to that series on the consent of the
    Holders of a specified percentage of the aggregate principal amount of
    Outstanding Securities of such series (which provision may be made pursuant
    to Section 301 without the consent of any Holder) or to provide that
    certain other provisions of this Indenture cannot be modified or waived
    without the consent of the Holder of each Outstanding Security affected
    thereby, provided, however, that this clause shall not be deemed to require
    the consent of any Holder with respect to changes in the references to "the
    Trustee" and concomitant changes in this Section and Section 1006, or the
    deletion of this proviso, in accordance with the requirements of Sections
    611(b) and 901(7).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other series.

          It shall not be necessary for any Act of Holders under this Section
to approve the particular form of any proposed supplemental indenture, but it
shall be sufficient if such Act shall approve the substance thereof.

SECTION 903.  Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive, and (subject to Section 601) shall be fully protected in relying upon,
an Opinion of Counsel stating that the execution of such supplemental indenture
is authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties, immunities or liabilities under this Indenture or
otherwise.

SECTION 904.  Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every
Holder of Securities theretofore or thereafter authenticated and delivered
hereunder shall be bound thereby.


                                       58
<PAGE>   68

SECTION 905.  Conformity With Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.  Reference in Securities to Supplemental Indentures.

          Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

                                  ARTICLE TEN

                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of (and premium,
if any), interest on and any Additional Amounts with respect to the Securities
of that series in accordance with the terms of the Securities and this
Indenture.

SECTION 1002.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange and where notices and demands to or
upon the Company in respect of the Securities of that series and this Indenture
may be served. The Company will give prompt written notice to the Trustee of
the location, and any change in the location, of such office or agency. If at
any time the Company shall fail to maintain any such required office or agency
or shall fail to furnish the Trustee with the address thereof, such
presentations, surrenders, notices and demands may be made or served at the
Corporate Trust Office of the Trustee.

          The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes and may from time to time rescind
such designations; provided, however, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in each Place of Payment for Securities of any series for such
purposes. The


                                       59
<PAGE>   69

Company will give prompt written notice to the Trustee of any such designation
or rescission and of any change in the location of any such other office or
agency.

SECTION 1003.  Money for Securities Payments to be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on or any Additional Amounts
with respect to any of the Securities of that series, segregate and hold in
trust for the benefit of the Persons entitled thereto a sum sufficient to pay
the principal (and premium, if any) or interest or any Additional Amounts so
becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee of its
action or failure so to act.

          Whenever the Company shall have one or more Paying Agents for any
series of Securities, the Company will, on or before each due date of the
principal of (and premium, if any) or interest on any Securities of that
series, deposit with a Paying Agent a sum sufficient to pay the principal (and
premium, if any) or interest so becoming due, such sum to be held in trust for
the benefit of the Persons entitled to such principal, premium or interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

          The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will:

          (1) hold all sums held by it for the payment of the principal of (and
    premium, if any), interest on or any Additional Amounts with respect to
    Securities of that series in trust for the benefit of the Persons entitled
    thereto until such sums shall be paid to such Persons or otherwise disposed
    of as herein provided;

          (2) give the Trustee notice of any default by the Company (or any
    other obligor upon the Securities of that series) in the making of any
    payment of principal (and premium, if any), interest on or any Additional
    Amounts with respect to the Securities of that series; and

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

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


                                       60
<PAGE>   70
          Any money deposited with the Trustee or any Paying Agent, or then
held by the Company, in trust for the payment of the principal of (and premium,
if any) or interest on or any Additional Amounts with respect to any Security
of any series and remaining unclaimed for three years after such principal (and
premium, if any) or interest or Additional Amounts have become due and payable
shall, unless otherwise required by mandatory provisions of applicable escheat,
or abandoned or unclaimed property law, be paid to the Company on Company
Request, or (if then held by the Company) shall be discharged from such trust;
and the Holder of such Security shall thereafter, as an unsecured general
creditor, look only to the Company for payment thereof, and all liability of
the Trustee or such Paying Agent with respect to such trust money, and all
liability of the Company as trustee thereof, shall thereupon cease; provided,
however, that the Trustee or such Paying Agent, before being required to make
any such repayment, may at the expense of the Company cause to be published
once, in an Authorized Newspaper in The Borough of Manhattan, The City of New
York and in such other Authorized Newspapers as the Trustee shall deem
appropriate, notice that such money remains unclaimed and that, after a date
specified therein, which shall not be less than 30 days from the date of such
publication, any unclaimed balance of such money then remaining will, unless
otherwise required by mandatory provisions of applicable escheat, or abandoned
or unclaimed property law, be repaid to the Company.

SECTION 1004.  Existence.

          Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence.

SECTION 1005.  Statement by Officers as to Default.

          The Company will deliver to the Trustee, within 120 days after the
end of each fiscal year of the Company ending after the date hereof so long as
any Security is outstanding hereunder, an Officers' Certificate, complying with
Section 314(a) of the Trust Indenture Act, stating that a review of the
activities of the Company during such year and of performance under this
Indenture has been made under the supervision of the signers thereof and
whether or not to the best of their knowledge, based upon such review, the
Company is in default in the performance, observance or fulfillment of any of
its covenants and other obligations under this Indenture, and if the Company
shall be in default, specifying each such default known to them and the nature
and status thereof. One of the officers signing the Officers' Certificate
delivered pursuant to this Section 1005 shall be the principal executive,
financial or accounting officer of the Company.

          For purposes of this Section, such compliance shall be determined
without regard to any period of grace or requirement of notice provided under
this Indenture.

SECTION 1006.  Waiver of Certain Covenants.

          The Company may omit in any particular instance to comply with any
covenant or condition set forth in Section 1004, or any covenant added for the
benefit of any series of Securities as contemplated by Section 301 (unless
otherwise specified pursuant to Section 301) if before or


                                       61
<PAGE>   71
after the time for such compliance the Holders of a majority in principal
amount of the Outstanding Securities of all series affected by such omission
(acting as one class) shall, by Act of such Holders, either waive such
compliance in such instance or generally waive compliance with such covenant or
condition, but no such waiver shall extend to or affect such covenant or
condition except to the extent so expressly waived, and, until such waiver
shall become effective, the obligations of the Company and the duties of the
Trustee in respect of any such covenant or condition shall remain in full force
and effect.

SECTION 1007.  Additional Amounts.

          If the Securities of a series expressly provide for the payment of
Additional Amounts, the Company will pay to the Holder of any Security of such
series Additional Amounts as expressly provided therein. Whenever in this
Indenture there is mentioned, in any context, the payment of the principal of
or any premium or interest on, or in respect of, any Security of any series or
the net proceeds received from the sale or exchange of any Security of any
series, such mention shall be deemed to include mention of the payment of
Additional Amounts provided for in this Section to the extent that, in such
context, Additional Amounts are, were or would be payable in respect thereof
pursuant to the provisions of this Section and express mention of the payment
of Additional Amounts (if applicable) in any provisions hereof shall not be
construed as excluding Additional Amounts in those provisions hereof where such
express mention is not made.

          If the Securities of a series provide for the payment of Additional
Amounts, at least 10 days prior to the first Interest Payment Date with respect
to that series of Securities (or if the Securities of that series will not bear
interest prior to Maturity, the first day on which a payment of principal and
any premium is made), and at least 10 days prior to each date of payment of
principal and any premium or interest if there has been any change with respect
to the matters set forth in the below-mentioned Officers' Certificate, the
Company shall furnish the Trustee and the Company's principal Paying Agent or
Paying Agents, if other than the Trustee, with an Officers' Certificate
instructing the Trustee and such Paying Agent or Paying Agents whether such
payment of principal of and any premium or interest on the Securities of that
series shall be made to Holders of Securities of that series who are United
States Aliens without withholding for or on account of any tax, assessment or
other governmental charge described in the Securities of that series. If any
such withholding shall be required, then such Officers' Certificate shall
specify by country the amount, if any, required to be withheld on such payments
to such Holders of Securities and the Company will pay to such Paying Agent the
Additional Amounts required by this Section. The Company covenants to indemnify
the Trustee and any Paying Agent for, and to hold them harmless against any
loss, liability or expense reasonably incurred without negligence or bad faith
on their part arising out of or in connection with actions taken or omitted by
any of them in reliance on any Officers' Certificate furnished pursuant to this
Section 1007.


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<PAGE>   72

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

          Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

          Unless otherwise provided with respect to the Securities of a series
as contemplated by Section 301, the election of the Company to redeem any
Securities shall be evidenced by a Board Resolution. In case of any redemption
at the election of the Company of less than all the Securities of any series,
the Company shall, a reasonable period prior to the Redemption Date fixed by
the Company (unless a shorter notice shall be satisfactory to the Trustee),
notify the Trustee of such Redemption Date and of the principal amount of
Securities of such series to be redeemed. In the case of any redemption of
Securities prior to the expiration of any restriction on such redemption
provided in the terms of such Securities or elsewhere in this Indenture, the
Company shall furnish the Trustee with an Officers' Certificate evidencing
compliance with such restriction.

SECTION 1103.  Selection by Trustee of Securities to be Redeemed.

          If less than all the Securities of any series are to be redeemed, the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of portions (equal to the minimum authorized denomination for
Securities of that series or any integral multiple thereof) of the principal
amount of Securities of such series of a denomination larger than the minimum
authorized denomination for Securities of that series or of the principal
amount of global Securities of such series.

          The Trustee shall promptly notify the Company and the Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

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


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SECTION 1104.  Notice of Redemption.

          Notice of redemption shall be given in the manner provided in Section
107 to each Holder of Securities to be redeemed not less than 30 nor more than
60 days prior to the Redemption Date.

          All notices of redemption shall state:

          (1) the Redemption Date,

          (2) the Redemption Price,

          (3) if less than all the Outstanding Securities of any series are to
    be redeemed, the identification (and, in the case of partial redemption,
    the principal amounts) of the particular Securities to be redeemed,

          (4) that on the Redemption Date the Redemption Price will become due
    and payable upon each such Security to be redeemed and, if applicable, that
    interest thereon will cease to accrue on and after said date,

          (5) the place or places where such Securities are to be surrendered
    for payment of the Redemption Price,

          (6) that the redemption is for a sinking fund, if such is the case,
    and

          (7) the "CUSIP" number, if applicable.

          A notice of redemption as contemplated by Section 107 need not
identify particular Securities to be redeemed. Notice of redemption of
Securities to be redeemed at the election of the Company shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

          On or before [TIME], [CITY, STATE] time, on any Redemption Date, the
Company shall deposit with the Trustee or with a Paying Agent (or, if the
Company is acting as its own Paying Agent, segregate and hold in trust as
provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date)
accrued interest on, and any Additional Amounts with respect to, all the
Securities which are to be redeemed on that date.


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<PAGE>   74
SECTION 1106.  Securities Payable on Redemption Date.

          Notice of redemption having been given as aforesaid, the Securities
so to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security
shall be paid by the Company at the Redemption Price, together with accrued
interest (and any Additional Amounts) to the Redemption Date; provided,
however, that installments of interest whose Stated Maturity is on or prior to
the Redemption Date shall be payable to the Holders of such Securities, or one
or more Predecessor Securities, registered as such at the close of business on
the relevant Record Dates according to their terms and the provisions of
Section 307.

          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal (and premium, if any) shall,
until paid, bear interest from the Redemption Date at the rate prescribed
therefor in the Security or, in the case of Original Issue Discount Securities,
the Securities' Yield to Maturity.

SECTION 1107.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be
surrendered at a Place of Payment therefor (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Security or Securities of the same
series and Stated Maturity, of any authorized denomination as requested by such
Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.

SECTION 1108.  Purchase of Securities.

          Unless otherwise specified as contemplated by Section 301, the
Company and any Affiliate of the Company may at any time purchase or otherwise
acquire Securities in the open market or by private agreement. Such acquisition
shall not operate as or be deemed for any purpose to be a redemption of the
indebtedness represented by such Securities. Any Securities purchased or
acquired by the Company may be delivered to the Trustee and, upon such
delivery, the indebtedness represented thereby shall be deemed to be satisfied.
Section 309 shall apply to all Securities so delivered.


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<PAGE>   75

                                 ARTICLE TWELVE

                                 SINKING FUNDS

SECTION 1201.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking
fund for the retirement of Securities of a series except as otherwise specified
as contemplated by Section 301 for Securities of such series.

          The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment", and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment". Unless otherwise provided by the terms of Securities of
any series, the cash amount of any sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

          The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption), and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of such series required to be made
pursuant to the terms of such Securities as provided for by the terms of such
series; provided that such Securities have not been previously so credited.
Such Securities shall be received and credited for such purpose by the Trustee
at the Redemption Price specified in such Securities for redemption through
operation of the sinking fund and the amount of such sinking payment shall be
reduced accordingly.

SECTION 1203.  Redemption of Securities for Sinking Fund.

          Not less than 45 days prior (unless a shorter period shall be
satisfactory to the Trustee) to each sinking fund payment date for any series
of Securities, the Company will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivery of or by crediting Securities of that series pursuant to
Section 1202 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 30 days before each such sinking fund payment date the
Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the
redemption thereof to be given in the name of and at the expense of the Company
in the manner provided in Section 1104. Such notice having


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<PAGE>   76
been duly given, the redemption of such Securities shall be made upon the terms
and in the manner stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN

                                 SUBORDINATION

SECTION 1301.  Securities Subordinated to Senior Indebtedness.

          The Company and each Holder of a Security, by his acceptance thereof,
agree that (a) the payment of the principal of, premium (if any) and interest
on and any Additional Amounts with respect to each and all the Securities and
(b) any other payment in respect of the Securities, including on account of the
acquisition or redemption of Securities by the Company, is subordinated, to the
extent and in the manner provided in this Article Thirteen, to the prior
payment in full of all Senior Indebtedness of the Company, whether outstanding
at the date of this Indenture or thereafter created, incurred, assumed or
guaranteed, and that these subordination provisions are for the benefit of the
holders of Senior Indebtedness.

          This Article Thirteen shall constitute a continuing offer to all
Persons who, in reliance upon such provisions, become holders of, or continue
to hold, Senior Indebtedness, and such provisions are made for the benefit of
the holders of Senior Indebtedness, and such holders are made obligees
hereunder and any one or more of them may enforce such provisions.

SECTION 1302.  No Payment on Securities in Certain Circumstances.

          (a) No payment shall be made by or on behalf of the Company on
account of the principal of, premium (if any) or interest on or any Additional
Amounts with respect to the Securities of any series or to acquire any of such
Securities (including any repurchases of such Securities pursuant to the
provisions hereof or thereof at the option of the Holder of such Securities)
for cash or property (other than Junior securities of the Company), or on
account of any redemption provisions of such Securities, in the event of
default in payment of any principal of, premium (if any) or interest on any
Senior Indebtedness of the Company when the same becomes due and payable,
whether at maturity or at a date fixed for prepayment or by declaration or
otherwise (a "Payment Default"), unless and until such Payment Default has been
cured or waived or otherwise has ceased to exist.

          (b) No payment shall be made by or on behalf of the Company on
account of the principal of, premium (if any) or interest on or any Additional
Amounts with respect to the Securities of any series or to acquire any of such
Securities (including any repurchases of such Securities pursuant to the
provisions hereof or thereof at the option of the Holder of such Securities)
for cash or property (other than Junior securities of the Company), or on
account of any redemption provisions of such Securities, in the event of any
event of default (other than a Payment Default) with respect to any Designated
Senior Indebtedness permitting the holders of such Designated Senior
Indebtedness (or a trustee or other representative on behalf of the holders
thereof) to declare such


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<PAGE>   77

Designated Senior Indebtedness due and payable prior to the date on which it
would otherwise have become due and payable, upon written notice thereof to the
Company and the Trustee by any holders of Designated Senior Indebtedness (or a
trustee or other representative on behalf of the holders thereof) (the "Payment
Notice"), unless and until such event of default shall have been cured or
waived or otherwise has ceased to exist; provided, that such payments may not
be prevented pursuant to this Section 1302(b) for more than 179 days after an
applicable Payment Notice has been received by the Trustee unless the
Designated Senior Indebtedness in respect of which such event of default exists
has been declared due and payable in its entirety, in which case no such
payment may be made until such acceleration has been rescinded or annulled or
such Designated Senior Indebtedness has been paid in full. No event of default
that existed or was continuing on the date of any Payment Notice (whether or
not such event of default is on the same issue of Designated Senior
Indebtedness) may be made the basis for the giving of a second Payment Notice,
and only one such Payment Notice may be given in any 365-day period.

          (c) In furtherance of the provisions of Section 1301, in the event
that, notwithstanding the foregoing provisions of this Section 1302, any
payment or distribution of assets of the Company (other than Junior securities
of the Company) shall be received by the Trustee or the Holders of Securities
of any series at a time when such payment or distribution was prohibited by the
provisions of this Section 1302, then, unless such payment or distribution is
no longer prohibited by this Section 1302, such payment or distribution
(subject to the provisions of Section 1307) shall be received and held in trust
by the Trustee or such Holder or Paying Agent for the benefit of the holders of
Senior Indebtedness of the Company, and shall be paid or delivered by the
Trustee or such Holders or such Paying Agent, as the case may be, to the
holders of Senior Indebtedness of the Company remaining unpaid or unprovided
for or their representative or representatives, or to the trustee or trustees
under any indenture pursuant to which any instruments evidencing such Senior
Indebtedness of the Company may have been issued, ratably, according to the
aggregate amounts remaining unpaid on account of such Senior Indebtedness of
the Company held or represented by each, for application to the payment of all
Senior Indebtedness in full after giving effect to all concurrent payments and
distributions to or for the holders of such Senior Indebtedness.

SECTION 1303.  Securities Subordinated to Prior Payment of All Senior 
Indebtedness on Dissolution, Liquidation or Reorganization.

          Upon any distribution of assets of the Company or upon any
dissolution, winding up, total or partial liquidation or reorganization of the
Company, whether voluntary or involuntary, in bankruptcy, insolvency,
receivership or similar proceeding or upon assignment for the benefit of
creditors:

          (a) the holders of all Senior Indebtedness of the Company shall first
    be entitled to receive payments in full, in cash, before the Holders of
    Securities of any series are entitled to receive any payment on account of
    the principal of, premium (if any) or interest on or any Additional Amounts
    with respect to such Securities (other than Junior securities of the
    Company);


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<PAGE>   78

          (b) any payment or distribution of assets of the Company of any kind
    or character, whether in cash, property or securities (other than Junior
    securities of the Company), to which the Holders of Securities of any
    series or the Trustee on behalf of such Holders would be entitled, except
    for the provisions of this Article Thirteen, shall be paid by the
    liquidating trustee or agent or other Person making such a payment or
    distribution directly to the holders of such Senior Indebtedness or their
    representative, ratably according to the respective amounts of Senior
    Indebtedness held or represented by each, to the extent necessary to make
    payment in full of all such Senior Indebtedness remaining unpaid after
    giving effect to all concurrent payments and distributions to the holders
    of such Senior Indebtedness; and

          (c) in the event that, notwithstanding the foregoing, any payment or
    distribution of assets of the Company of any kind or character, whether in
    cash, property or securities (other than Junior securities of the Company),
    shall be received by the Trustee or the Holders of Securities of any series
    or any Paying Agent (or, if the Company or any Affiliate of the Company is
    acting as its own Paying Agent, money for any such payment or distribution
    shall be segregated or held in trust) on account of the principal of,
    premium (if any) or interest on or any Additional Amounts with respect to
    the Securities of such series before all Senior Indebtedness of the Company
    is paid in full, in cash, such payment or distribution (subject to the
    provisions of Section 1307) shall be received and held in trust by the
    Trustee or such Holder or Paying Agent for the benefit of the holders of
    such Senior Indebtedness, or their respective representatives, ratably
    according to the respective amounts of such Senior Indebtedness held or
    represented by each, to the extent necessary to make payment as provided
    herein of all such Senior Indebtedness remaining unpaid after giving effect
    to all concurrent payments and distributions and all provisions therefor to
    or for the holders of such Senior Indebtedness, but only to the extent that
    as to any holder of such Senior Indebtedness, as promptly as practical
    following notice from the Trustee to the holders of such Senior
    Indebtedness that such prohibited payment has been received by the Trustee,
    Holder(s) or Paying Agent (or has been segregated as provided above), such
    holder (or a representative therefor) notifies the Trustee of the amounts
    then due and owing on such Senior Indebtedness, if any, held by such holder
    and only the amounts specified in such notices to the Trustee shall be paid
    to the holders of such Senior Indebtedness.

SECTION 1304.  Subrogation to Rights of Holders of Senior Indebtedness.

          Subject to the payment in full of all Senior Indebtedness of the
Company as provided herein, the Holders of the Securities shall be subrogated
(to the extent of the payments or distributions made to the holders of such
Senior Indebtedness pursuant to the provisions of this Article) to the rights
of the holders of such Senior Indebtedness to receive payments or distributions
of assets of the Company applicable to the Senior Indebtedness until all
amounts owing on the Securities shall be paid in full. For the purpose of such
subrogation, no such payments or distributions to the holders of such Senior
Indebtedness by the Company, or by or on behalf of the Holders of the
Securities by virtue of this Article Thirteen, which otherwise would have been
made to such Holders shall, as between the Company and such Holders, be deemed
to be payment by the


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<PAGE>   79

Company or on account of such Senior Indebtedness, it being understood that the
provisions of this Article Thirteen are and are intended solely for the purpose
of defining the relative rights of the Holders of the Securities, on the one
hand, and the holders of such Senior Indebtedness, on the other hand.

          If any payment or distribution to which the Holders of the Securities
would otherwise have been entitled but for the provisions of this Article
Thirteen shall have been applied, pursuant to the provisions of this Article
Thirteen, to the payment of amounts payable under Senior Indebtedness of the
Company, then such Holders shall be entitled to receive from the holders of
such Senior Indebtedness any payments or distributions received by such holders
of Senior Indebtedness in excess of the amount sufficient to pay all amounts
payable under or in respect of such Senior Indebtedness in full.

SECTION 1305.  Obligations of the Company Unconditional.

          Nothing contained in this Article Thirteen or elsewhere in this
Indenture or in the Securities is intended to or shall impair, as between the
Company and the Holders of the Securities of any series, the obligation of the
Company, which is absolute and unconditional, to pay to such Holders the
principal of, premium (if any) and interest on and any Additional Amounts with
respect to the Securities of such series as and when the same shall become due
and payable in accordance with their terms, or is intended to or shall affect
the relative rights of such Holders and creditors of the Company other than the
holders of the Senior Indebtedness, nor shall anything herein or therein
prevent the Trustee or any Holder from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture, subject to the
rights, if any, under this Article Thirteen, of the holders of Senior
Indebtedness in respect of cash, property or securities of the Company received
upon the exercise of any such remedy. Notwithstanding anything to the contrary
in this Article Thirteen or elsewhere in this Indenture or in the Securities,
upon any distribution of assets of the Company referred to in this Article
Thirteen, the Trustee, subject to the provisions of Sections 601 and 603, and
the Holders of the Securities shall be entitled to rely upon any order or
decree made by any court of competent jurisdiction in which such dissolution,
winding up, liquidation or reorganization proceedings are pending, or a
certificate of the liquidating trustee or agent or other Person making any
distribution to the Trustee or to such Holders for the purpose of ascertaining
the Persons entitled to participate in such distribution, the holders of the
Senior Indebtedness and other Indebtedness of the Company, the amount thereof
or payable thereon, the amount or amounts paid or distributed thereon and all
other facts pertinent thereto or to this Article Thirteen so long as such court
has been apprised of the provisions of, or the order, decree or certificate
makes reference to, the provisions of this Article Thirteen.

SECTION 1306.  Trustee Entitled to Assume Payments Not Prohibited in Absence of 
Notice.

          The Trustee shall not at any time be charged with knowledge of the
existence of any facts that would prohibit the making of any payment to or by
the Trustee unless and until a Responsible Officer of the Trustee or any Paying
Agent shall have received, no later than two Business Days prior to such
payment, written notice thereof from the Company or from one or more


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<PAGE>   80

holders of Senior Indebtedness or from any representative therefor and, prior
to the receipt of any such written notice, the Trustee, subject to the
provisions of Sections 601 and 603, shall be entitled in all respects
conclusively to assume that no such fact exists.

SECTION 1307.  Application by Trustee of Amounts Deposited with It.

          Amounts deposited in trust with the Trustee pursuant to and in
accordance with Article Four shall be for the sole benefit of Holders of the
Securities of series for the benefit of which such amounts were deposited, and,
to the extent allocated for the payment of Securities of such series, shall not
be subject to the subordination provisions of this Article Thirteen. Otherwise,
any deposit of assets with the Trustee or the Paying Agent (whether or not in
trust) for the payment of principal of, premium (if any) or interest on or any
Additional Amounts with respect to any Securities shall be subject to the
provisions of Sections 1301, 1302, 1303 and 1304; provided that if prior to two
Business Days preceding the date on which by the terms of this Indenture any
such assets may become distributable for any purpose (including without
limitation, the payment of either principal of, premium (if any) or interest on
or any Additional Amounts with respect to any Security), the Trustee or such
Paying Agent shall not have received with respect to such assets the written
notice provided for in Section 1306, then the Trustee or such Paying Agent
shall have full power and authority to receive such assets and to apply the
same to the purpose for which they were received, and shall not be affected by
any notice to the contrary that may be received by it on or after such date;
and provided further that nothing contained in this Article Thirteen shall
prevent the Company from making, or the Trustee from receiving or applying, any
payment in connection with the redemption of Securities if the first
publication of notice of such redemption (whether by mail or otherwise in
accordance with this Indenture) has been made, and the Trustee has received
such payment from the Company, prior to the occurrence of any of the
contingencies specified in Section 1302 or 1303.

SECTION 1308.  Subordination Rights Not Impaired by Acts or Omissions of the 
Company or Holders of Senior Indebtedness.

          No right of any present or future holders of any Senior Indebtedness
to enforce subordination provisions contained in this Article Thirteen shall at
any time in any way be prejudiced or impaired by any act or failure to act on
the part of the Company or by any act or failure to act, in good faith, by any
such holder, or by any noncompliance by the Company with the terms of this
Indenture, regardless of any knowledge thereof that any such holder may have or
be otherwise charged with. The holders of Senior Indebtedness may extend,
renew, modify or amend the terms of the Senior Indebtedness or any security
therefor and release, sell or exchange such security and otherwise deal freely
with the Company, all without affecting the liabilities and obligations of the
parties to this Indenture or the Holders of the Securities.


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<PAGE>   81

SECTION 1309.  Trustee to Effectuate Subordination of Securities.

          Each Holder of a Security by his acceptance thereof authorizes and
expressly directs the Trustee on his behalf to take such action as may be
necessary or appropriate to effectuate the subordination provisions contained
in this Article Thirteen and to protect the rights of the Holders of the
Securities pursuant to this Indenture, and appoints the Trustee his
attorney-in-fact for such purpose, including, in the event of any dissolution,
winding up, liquidation or reorganization of the Company (whether in
bankruptcy, insolvency or receivership proceedings or upon an assignment for
the benefit of creditors of the Company), the filing of a claim for the unpaid
balance of his Securities in the form required in said proceedings and cause
said claim to be approved. If the Trustee does not file a proper claim or proof
of debt in the form required in such proceeding prior to 30 days before the
expiration of the time to file such claim or claims, then the holders of the
Senior Indebtedness or their representative is hereby authorized to have the
right to file and is hereby authorized to file an appropriate claim for and on
behalf of the Holders of said Securities. Nothing herein contained shall be
deemed to authorize the Trustee or the holders of Senior Indebtedness or their
representative to authorize or consent to or accept or adopt on behalf of any
Holder of Securities any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any Holder thereof, or to
authorize the Trustee or the holders of Senior Indebtedness or their
representative to vote in respect of the claim of any Holder of the Securities
in any such proceeding.

SECTION 1310.  Right of Trustee to Hold Senior Indebtedness.

          The Trustee in its individual capacity shall be entitled to all of
the rights set forth in this Article Thirteen in respect of any Senior
Indebtedness at any time held by it to the same extent as any other holder of
Senior Indebtedness, and nothing in this Indenture shall be construed to
deprive the Trustee of any of its rights as such holder.

SECTION 1311.  Article Thirteen Not to Prevent Events of Default.

          The failure to make a payment on account of principal of or premium
(if any) or interest on the Securities by reason of any provision of this
Article Thirteen shall not be construed as preventing the occurrence of a
Default or an Event of Default under Section 501 or in any way prevent the
Holders of the Securities from exercising any right hereunder other than the
right to receive payment on the Securities.

SECTION 1312.  No Fiduciary Duty of Trustee to Holders of Senior Indebtedness.

          The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Indebtedness, and shall not be liable to any such holders
(other than for its willful misconduct or negligence) if it shall in good faith
mistakenly pay over or distribute to the Holders of the Securities or the
Company or any other Person, cash, property or securities to which any holders
of Senior Indebtedness shall be entitled by virtue of this Article Thirteen or
otherwise. Nothing in this Section


                                       72
<PAGE>   82

1312 shall affect the obligation of any other such Person to hold such payment
for the benefit of, and to pay such payment over to, the holders of Senior
Indebtedness or their representative.

SECTION 1313.  Article Applicable to Paying Agent.

          In case at any time any Payment Agent other than the Trustee shall
have been appointed by the Company and be then acting hereunder, the term
"Trustee" as used in this Article Thirteen shall in such case (unless the
context shall otherwise require) be construed as extending to and including
such Payment Agent within its meaning as fully for all intents and purposes as
if such Paying Agent were named in this Article in addition to or in place of
the Trustee; provided, however, that this Section 1313 shall not apply to the
Company or any Affiliate of the Company if it or such Affiliate acts as Paying
Agent.

                                ARTICLE FOURTEEN

                       MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called.

          A meeting of Holders of Securities of any or all series may be called
at any time and from time to time pursuant to this Article to make, give or
take any request, demand, authorization, direction, notice, consent, waiver or
other action provided by this Indenture to be made, given or taken by Holders
of Securities of such series.

SECTION 1402.  Call, Notice and Place of Meetings.

          (a) The Trustee may at any time call a meeting of Holders of
Securities of any series for any purpose specified in Section 1401, to be held
at such time and at such place in [CITY, STATE], or in any other location, as
the Trustee shall determine. Notice of every meeting of Holders of Securities
of any series, setting forth the time and the place of such meeting and in
general terms the action proposed to be taken at such meeting, shall be given,
in the manner provided in Section 107, not less than 20 nor more than 180 days
prior to the date fixed for the meeting.

          (b) In case at any time the Company, pursuant to a Board Resolution,
or the Holders of at least 10% in aggregate principal amount of the Outstanding
Securities of any series, shall have requested the Trustee for any such series
to call a meeting of the Holders of Securities of such series for any purpose
specified in Section 1401, by written request setting forth in reasonable
detail the action proposed to be taken at the meeting, and the Trustee shall
not have made the first publication of the notice of such meeting within 30
days after receipt of such request or shall not thereafter proceed to cause the
meeting to be held as provided herein, then the Company or the Holders of
Securities of such series in the amount above specified, as the case may be,
may determine the time and the place in [CITY, STATE], for such meeting and may
call such meeting for such purposes by giving notice thereof as provided in
Subsection (a) of this Section.


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<PAGE>   83

SECTION 1403.  Persons Entitled to Vote at Meetings.

          To be entitled to vote at any meeting of Holders of Securities of any
series, a Person shall be (1) a Holder of one or more Outstanding Securities of
such series, or (2) a Person appointed by an instrument in writing as proxy for
a Holder or Holders of one or more Outstanding Securities of such series by
such Holder or Holders. The only Persons who shall be entitled to be present or
to speak at any meeting of Holders of Securities of any series shall be the
Persons entitled to vote at such meeting and their counsel, any representatives
of the Trustee and its counsel and any representatives of the Company and its
counsel.

SECTION 1404.  Quorum; Action.

          The Persons entitled to vote a majority in aggregate principal amount
of the Outstanding Securities of a series shall constitute a quorum for a
meeting of Holders of Securities of such series. In the absence of a quorum
within 30 minutes of the time appointed for any such meeting, the meeting
shall, if convened at the request of Holders of Securities of such series, be
dissolved. In any other case, the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting. In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting. Subject to Section 1405(d), notice of
the reconvening of any adjourned meeting shall be given as provided in Section
1402(a), except that such notice need be given only once not less than five
days prior to the date on which the meeting is scheduled to be reconvened.
Notice of the reconvening of an adjourned meeting shall state expressly that
Persons entitled to vote a majority in principal amount of the Outstanding
Securities of such series shall constitute a quorum.

          Except as limited by the proviso to Section 902, any resolution
presented to a meeting or adjourned meeting duly reconvened at which a quorum
is present as aforesaid may be adopted by the affirmative vote of the Holders
of a majority in aggregate principal amount of the Outstanding Securities of
that series; provided, however, that, except as limited by the proviso to
Section 902, any resolution with respect to any request, demand, authorization,
direction, notice, consent or waiver which this Indenture expressly provides
may be made, given or taken by the Holders of a specified percentage that is
less than a majority in aggregate principal amount of the Outstanding
Securities of a series may be adopted at a meeting or an adjourned meeting duly
reconvened and at which a quorum is present as aforesaid by the affirmative
vote of the Holders of such specified percentage in aggregate principal amount
of the Outstanding Securities of that series.

          Except as limited by the proviso to Section 902, any resolution
passed or decision taken at any meeting of Holders of Securities of any series
duly held in accordance with this Section shall be binding on all the Holders
of Securities of such series, whether or not present or represented at the
meeting.


                                       74
<PAGE>   84

SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of 
Meetings.

          (a) The holding of Securities shall be proved in the manner specified
    in Section 105 and the appointment of any proxy shall be proved in the
    manner specified in Section 105. Such regulations may provide that written
    instruments appointing proxies, regular on their face, may be presumed
    valid and genuine without the proof specified in Section 105 or other
    proof.

          (b) The Trustee shall, by an instrument in writing, appoint a
    temporary chairman of the meeting, unless the meeting shall have been
    called by the Company or by Holders of Securities as provided in Section
    1402(b), in which case the Company or the Holders of Securities of the
    series calling the meeting, as the case may be, shall appoint a temporary
    chairman. A permanent chairman and a permanent secretary of the meeting
    shall be elected by vote of the Persons entitled to vote a majority in
    aggregate principal amount of the Outstanding Securities of such series
    represented at the meeting.

          (c) At any meeting each Holder of a Security of such series and each
    proxy shall be entitled to one vote for each $1,000 principal amount of the
    Outstanding Securities of such series held or represented by him; provided,
    however, that no vote shall be cast or counted at any meeting in respect of
    any Security challenged as not Outstanding and ruled by the chairman of the
    meeting to be not Outstanding. The chairman of the meeting shall have no
    right to vote, except as a Holder of a Security of such series or as a
    proxy.

          (d) Any meeting of Holders of Securities of any series duly called
    pursuant to Section 1402 at which a quorum is present may be adjourned from
    time to time by Persons entitled to vote a majority in aggregate principal
    amount of the Outstanding Securities of such series represented at the
    meeting; and the meeting may be held as so adjourned without further
    notice.

SECTION 1406.  Counting Votes and Recording Action of Meetings.

          The vote upon any resolution submitted to any meeting of Holders of
Securities of any series shall be by written ballots on which shall be
subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them. The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting. A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities of any
series shall be prepared by the secretary of the meeting and there shall be
attached to such record the original reports of the inspectors of votes on any
vote by ballot taken thereat and affidavits by one or more persons having
knowledge of the facts setting forth a copy of the notice of the meeting and
showing that such notice was given as provided in Section 1402 and, if
applicable, Section 1404. Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such


                                       75
<PAGE>   85

copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

                                     * * *

          This instrument may be executed in any number of counterparts, each
of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

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

                                        KEY ENERGY SERVICES, INC.


                                        By:
                                            ----------------------------------
                                                Name:
                                                Title:



                                        [TRUSTEE], Trustee



                                        By:
                                            ----------------------------------
                                                Name:
                                                Title:


                                       76

<PAGE>   1
                                                                     EXHIBIT 4.3
================================================================================




                      KEY ENERGY SERVICES, INC., AS ISSUER

                                       AND

                   THE GUARANTORS NAMED HEREIN, AS GUARANTORS

                                       AND

                              [TRUSTEE], AS TRUSTEE


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




                                    INDENTURE

                                   DATED AS OF

                            ___________________, 1999



                                 DEBT SECURITIES
                            (SENIOR GUARANTEED DEBT)


================================================================================


<PAGE>   2




                            Key Energy Services, Inc.

           Reconciliation and tie between Trust Indenture Act of 1939
               and Indenture, dated as of _________________, 1999

                    ----------------------------------------
<TABLE>
<CAPTION>
Section of
Trust Indenture                                                 Section(s) of
Act of 1939                                                       Indenture
- -----------                                                     -------------
<S>                                                             <C>
Section 310  (a)(1).........................................    609
             (a)(2).........................................    609
             (a)(3).........................................    Not Applicable
             (a)(4).........................................    Not Applicable
             (b)............................................    608, 610
Section 311  (a)............................................    613
             (b)............................................    613
             (c)............................................    Not Applicable
Section 312  (a)............................................    701, 702(a)
             (b)............................................    702(b)
             (c)............................................    702(c)
Section 313  (a)............................................    703(a)
             (b)............................................    703(b)
             (c)............................................    703(c)
             (d)............................................    703(d)
Section 314  (a)............................................    704, 1005
             (b)............................................    Not Applicable
             (c)(1).........................................    103
             (c)(2).........................................    103
             (c)(3).........................................    Not Applicable
             (d)............................................    Not Applicable
             (e)............................................    103
Section 315  (a)............................................    601(a)
             (b)............................................    602
             (c)............................................    601(b)
             (d)............................................    601(c)
             (d)(1).........................................    601(a)(1)
             (d)(2).........................................    601(c)(2)
             (d)(3).........................................    601(c)(3)
             (e)............................................    513
Section 316  (a)(1)(A)......................................    502, 511
             (a)(1)(B)......................................    512
             (a)(2).........................................    Not Applicable
             (a)(last sentence).............................    101
             (b)............................................    508
Section 317  (a)(1).........................................    503
             (a)(2).........................................    504
             (b)............................................    1003
Section 318  (a)............................................    108
</TABLE>

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

Note: This reconciliation and tie shall not, for any purpose, be deemed to be a
      part of the Indenture.


<PAGE>   3

                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
RECITALS OF THE COMPANY ......................................................1

                                   ARTICLE ONE
                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions ....................................................1
     Act .....................................................................2
     Additional Amounts ......................................................2
     Affiliate ...............................................................2
     Agent Members ...........................................................2
     Authenticating Agent ....................................................2
     Authorized Newspaper ....................................................2
     Board of Directors ......................................................3
     Board Resolution ........................................................3
     Business Day ............................................................3
     Capital Stock ...........................................................3
     Commission ..............................................................3
     Company .................................................................3
     "Company Request" and "Company Order" ...................................3
     Conversion Event ........................................................3
     Corporate Trust Office ..................................................3
     Defaulted Interest ......................................................3
     Depositary ..............................................................3
     Dollar ..................................................................4
     Event of Default ........................................................4
     Exchange Rate ...........................................................4
     Guarantors ..............................................................4
     Holder ..................................................................4
     Indenture ...............................................................4
     Interest ................................................................4
     Interest Payment Date ...................................................4
     Judgment Currency .......................................................4
     Lien ....................................................................4
     Maturity ................................................................4
     Officers' Certificate ...................................................5
     Opinion of Counsel ......................................................5
     Original Issue Discount Security ........................................5
     Outstanding .............................................................5
</TABLE>


                                        i

<PAGE>   4


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
     Paying Agent ............................................................6
     Person ..................................................................6
     Place of Payment ........................................................6
     Predecessor Security ....................................................6
     Redemption Date .........................................................6
     Redemption Price ........................................................6
     Regular Record Date .....................................................6
     Required Currency .......................................................6
     Responsible Officer .....................................................7
     Securities ..............................................................7
     Security Custodian ......................................................7
     Security Register .......................................................7
     Senior Guarantee ........................................................7
     Special Record Date .....................................................7
     Stated Maturity .........................................................7
     Subsidiary ..............................................................7
     Trustee .................................................................7
     Trust Indenture Act .....................................................7
     United States ...........................................................8
     United States Alien .....................................................8
     U.S. Government Obligations .............................................8
     Vice President ..........................................................8
     Wholly Owned Subsidiary .................................................8
     Yield to Maturity .......................................................8

SECTION 102.  Incorporation by Reference of Trust Indenture Act ..............8
SECTION 103.  Compliance Certificates and Opinions ...........................9
SECTION 104.  Form of Documents Delivered to Trustee .........................9
SECTION 105.  Acts of Holders; Record Dates .................................10
SECTION 106.  Notices, Etc., to Trustee and Company .........................11
SECTION 107.  Notice to Holders; Waiver .....................................11
SECTION 108.  Conflict With Trust Indenture Act .............................12
SECTION 109.  Effect of Headings and Table of Contents ......................12
SECTION 110.  Successors and Assigns ........................................12
SECTION 111.  Separability Clause ...........................................12
SECTION 112.  Benefits of Indenture .........................................12
SECTION 113.  Governing Law .................................................13
SECTION 114.  Legal Holidays ................................................13
SECTION 115.  Corporate Obligation ..........................................13
</TABLE>


                                       ii

<PAGE>   5

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
                                   ARTICLE TWO
                                 SECURITY FORMS

SECTION 201.  Forms Generally ...............................................13
SECTION 202.  Form of Trustee's Certificate of Authentication ...............14
SECTION 203.  Form of Senior Guarantee.......................................14
SECTION 204.  Securities in Global Form .....................................17

                                  ARTICLE THREE
                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series ..........................20
SECTION 302.  Denominations .................................................22
SECTION 303.  Execution, Authentication, Delivery and Dating ................23
SECTION 304.  Temporary Securities ..........................................24
SECTION 305.  Registration, Registration of Transfer and Exchange ...........25
SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities ..............26
SECTION 307.  Payment of Interest; Interest Rights Preserved ................27
SECTION 308.  Persons Deemed Owners .........................................28
SECTION 309.  Cancellation ..................................................28
SECTION 310.  Computation of Interest .......................................29
SECTION 311.  CUSIP Numbers .................................................29

                                  ARTICLE FOUR
                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture .......................29
SECTION 402.  Application of Trust Money ....................................31
SECTION 403.  Discharge of Liability on Securities of Any Series ............31
SECTION 404.  Applicability of Defeasance Provisions; Company's
                    Option to Effect Defeasance or Covenant Defeasance ......32
SECTION 405.  Defeasance and Discharge ......................................32
SECTION 406.  Covenant Defeasance ...........................................33
SECTION 407.  Conditions to Defeasance or Covenant Defeasance ...............33
SECTION 408.  Deposited Money and Government Obligations
                    to be Held in Trust .....................................35
SECTION 409.  Repayment to Company ..........................................35
SECTION 410.  Indemnity for Government Obligations ..........................35
SECTION 411.  Reinstatement .................................................35
</TABLE>


                                       iii

<PAGE>   6


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>

                                  ARTICLE FIVE
                                    REMEDIES

SECTION 501.  Events of Default .............................................36
SECTION 502.  Acceleration of Maturity; Rescission and Annulment ............38
SECTION 503.  Collection of Indebtedness and Suits for 
                    Enforcement by Trustee ..................................39
SECTION 504.  Trustee May File Proofs of Claim ..............................40
SECTION 505.  Trustee May Enforce Claims Without Possession of
                    Securities or Coupons ...................................41
SECTION 506.  Application of Money Collected ................................41
SECTION 507.  Limitation on Suits ...........................................42
SECTION 508.  Unconditional Right of Holders to Receive 
                    Principal Premium and Interest ..........................42
SECTION 509.   Restoration of Rights and Remedies ...........................42
SECTION 510.  Rights and Remedies Cumulative ................................43
SECTION 511.  Delay or Omission Not Waiver ..................................43
SECTION 512.  Control by Holders ............................................43
SECTION 513.  Waiver of Past Defaults .......................................44
SECTION 514.  Undertaking for Costs .........................................44
SECTION 515.   Waiver of Stay or Extension Laws .............................44

                                   ARTICLE SIX
                                   THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities ...........................45
SECTION 602.  Notice of Defaults ............................................46
SECTION 603.  Certain Rights of Trustee .....................................46
SECTION 604.  Not Responsible for Recitals or Issuance of Securities ........47
SECTION 605.  May Hold Securities ...........................................47
SECTION 606.  Money Held in Trust ...........................................48
SECTION 607.  Compensation and Reimbursement ................................48
SECTION 608.  Disqualification; Conflicting Interests .......................48
SECTION 609.  Corporate Trustee Required; Eligibility .......................49
SECTION 610.  Resignation and Removal; Appointment of Successor .............49
SECTION 611.  Acceptance of Appointment by Successor ........................51
SECTION 612.  Merger, Conversion, Consolidation or Succession to Business ...52
SECTION 613.  Preferential Collection of Claims Against Company .............52
SECTION 614.  Appointment of Authenticating Agent ...........................52
</TABLE>


                                       iv

<PAGE>   7


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>

                                  ARTICLE SEVEN
                HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders .....54
SECTION 702.  Preservation of Information; Communications to Holders ........55
SECTION 703.  Reports by Trustee .............................................55
SECTION 704.  Reports by Company and the Guarantors ..........................56

                                  ARTICLE EIGHT
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms ...........56
SECTION 802.  Successor Person Substituted ...................................57

                                  ARTICLE NINE
                             SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders .............57
SECTION 902.  Supplemental Indentures With Consent of Holders ................58
SECTION 903.  Execution of Supplemental Indentures ...........................59
SECTION 904.  Effect of Supplemental Indentures ..............................60
SECTION 905.  Conformity With Trust Indenture Act ............................60
SECTION 906.  Reference in Securities to Supplemental Indentures .............60

                                   ARTICLE TEN
                                    COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest ....................60
SECTION 1002.  Maintenance of Office or Agency ...............................60
SECTION 1003.  Money for Securities Payments to be Held in Trust .............61
SECTION 1004.  Existence .....................................................62
SECTION 1005.  Statement by Officers as to Default ...........................62
SECTION 1006.  Waiver of Certain Covenants ...................................63
SECTION 1007.  Additional Amounts ............................................63

                                 ARTICLE ELEVEN
                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article ......................................64
SECTION 1102.  Election to Redeem; Notice to Trustee .........................64
SECTION 1103.  Selection by Trustee of Securities to be Redeemed .............64
</TABLE>


                                        v

<PAGE>   8

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>

SECTION 1104.  Notice of Redemption .........................................65
SECTION 1105.  Deposit of Redemption Price ..................................65
SECTION 1106.  Securities Payable on Redemption Date ........................66
SECTION 1107.  Securities Redeemed in Part ..................................66
SECTION 1108.  Purchase of Securities .......................................66

                                 ARTICLE TWELVE
                                  SINKING FUNDS

SECTION 1201.  Applicability of Article .....................................67
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities ........67
SECTION 1203.  Redemption of Securities for Sinking Fund ....................67

                                ARTICLE THIRTEEN
                        MEETINGS OF HOLDERS OF SECURITIES

SECTION 1301.  Purposes for Which Meetings May Be Called ....................68
SECTION 1302.  Call, Notice and Place of Meetings ...........................68
SECTION 1303.  Persons Entitled to Vote at Meetings .........................68
SECTION 1304.  Quorum; Action ...............................................69
SECTION 1305.  Determination of Voting Rights; Conduct and
                    Adjournment of Meetings .................................69
SECTION 1306.  Counting Votes and Recording Action of Meetings ..............70

                                ARTICLE FOURTEEN
                                SENIOR GUARANTEE

SECTION 1401.  Guarantee ....................................................71
SECTION 1402.  Limitation on Guarantor Liability ............................72
SECTION 1403.  Execution and Delivery of Senior Guarantee ...................72
SECTION 1404.  Releases Following Sale of Assets ............................73
</TABLE>


                                       vi

<PAGE>   9


          INDENTURE, dated as of _______________, 1999 between KEY ENERGY
SERVICES, INC., a corporation duly organized and existing under the laws of the
State of Maryland (herein called the "Company"), having its principal office at
Two Tower Center, 10th Floor, East Brunswick, New Jersey 08816, each of the
Guarantors (as hereinafter defined), and [TRUSTEE], a national banking
association, as Trustee (herein called the "Trustee"), the office of the Trustee
at which at the date hereof its corporate trust business is principally
administered being [TRUSTEE ADDRESS].

                             RECITALS OF THE COMPANY

          The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its debentures, notes
or other evidences of indebtedness (herein called the "Securities"), to be
issued in one or more series as in this Indenture provided.

          The Company, directly or indirectly, owns beneficially and of record
100% of the Capital Stock or other ownership interests, as the case may be, of
each Guarantor; the Company and Guarantors are members of the same consolidated
group of companies engaged in related business and the Guarantors will derive
direct and indirect economic benefit from the issuance of the Securities.

          This Indenture is subject to the provisions of the Trust Indenture Act
and the rules and regulations of the Commission promulgated thereunder that are
required to be part of this Indenture and, to the extent applicable, shall be
governed by such provisions.

          All things necessary to make this Indenture a valid agreement of the
Company and each of the Guarantors, in accordance with its terms, have been
done.

          NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of series
thereof, as follows:

                                   ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:


                                                        1

<PAGE>   10


          (1) the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

          (2) all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with generally accepted accounting
     principles in the United States, and, except as otherwise herein expressly
     provided, the term "generally accepted accounting principles" with respect
     to any computation required or permitted hereunder shall mean such
     accounting principles as are generally accepted in the United States at the
     date of such computation; and

          (3) the words "herein," "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any particular
     Article, Section or other subdivision.

          Certain terms, used principally in Article Six, are defined in Section
102.

          "Act," when used with respect to any Holder, has the meaning specified
in Section 105.

          "Additional Amounts" means any additional amounts that are required by
the express terms of a Security or by or pursuant to a Board Resolution, under
circumstances specified therein or pursuant thereto, to be paid by the Company
with respect to certain taxes, assessments or other governmental charges imposed
on certain Holders and that are owing to such Holders.

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

          "Agent Members" has the meaning specified in Section 203.

          "Authenticating Agent" means any Person, which may include the
Company, authorized by the Trustee to act on behalf of the Trustee pursuant to
Section 614 to authenticate Securities of one or more series.

          "Authorized Newspaper" means a newspaper, in the English language or
in an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place. Where successive publications
are required to be made in Authorized Newspapers, the successive publications
may be made in the same or in different newspapers in the same city meeting the
foregoing requirements and in each case on any Business Day.


                                        2

<PAGE>   11


          "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

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

          "Business Day," when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking institutions in that Place of Payment are authorized or obligated by law
or executive order to close.

          "Capital Stock" means, with respect to any Person, any and all shares,
interests, rights to purchase (other than convertible or exchangeable
indebtedness), warrants, options, participations or other equivalents of or
interests (however designated) in stock issued by that Person.

          "Commission" means the Securities and Exchange Commission, as from
time to time constituted, created under the Securities Exchange Act of 1934, as
amended, or, if at any time after the execution of this instrument such
Commission is not existing and performing the duties now assigned to it under
the Trust Indenture Act, then the body performing such duties at such time.

          "Company" means the Person named as the "Company" in the first
paragraph of this Indenture until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

          "Company Request" and "Company Order" mean, respectively, a written
request or order signed in the name of the Company by its Chairman of the Board,
its President or a Vice President, and by its Treasurer, an Assistant Treasurer,
its Controller, an Assistant Controller, its Secretary or an Assistant
Secretary, and delivered to the Trustee.

          "Conversion Event" has the meaning specified in Section 501.

          "Corporate Trust Office" means the principal office of the Trustee in
[TRUSTEE'S CITY AND STATE] at which at any particular time its corporate trust
business shall be principally administered, which office at the date hereof is
that indicated in the introductory paragraph of this Indenture.

          "Defaulted Interest" has the meaning specified in Section 307.

          "Depositary" means, with respect to the Securities of any series
issuable or issued in whole or in part in global form, the Person designated as
Depositary by the Company pursuant to Section 301 with respect to the Securities
of such series until a successor Depositary shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Depositary" shall
mean or include each Person who is then a Depositary hereunder, and if at any
time there is


                                        3

<PAGE>   12


more than one such Person, "Depositary" as used with respect to the Securities
of any series shall mean the Depositary with respect to the Securities of that
series.

          "Dollar" or "$" means a dollar or other equivalent unit in such coin
or currency of the United States as at the time shall be legal tender for the
payment of public and private debts.

          "Event of Default" has the meaning specified in Section 501.

          "Exchange Rate" has the meaning specified in Section 501.

          "Guarantors" means each of the Subsidiaries of Company listed on
Schedule I attached hereto and by this reference made a part hereof.

          "Holder," when used with respect to any Security, means the Person in
whose name the Security is registered in the Security Register.

          "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

          "Interest," when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

          "Interest Payment Date," when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

          "Judgment Currency" has the meaning specified in Section 506.

          "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or encumbrance of any kind in respect of such asset,
whether or not filed, recorded or otherwise perfected under applicable law,
including any conditional sale or other title retention agreement, any lease in
the nature thereof, any option or other agreement to sell or give a security
interest in and any filing of or agreement to give any financing statement under
the Uniform Commercial Code (or equivalent statutes) of any jurisdiction.

          "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.


                                        4

<PAGE>   13


          "Officers' Certificate" means a certificate signed by the Chairman of
the Board, the President or a Vice President, and by the Treasurer, the
Controller, the Secretary or an Assistant Treasurer, Assistant Controller or
Assistant Secretary, of the Company, and delivered to the Trustee, which
certificate shall comply with Section 103 hereof.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for or an employee of the Company, rendered, if applicable, in
accordance with Section 314(c) of the Trust Indenture Act, which opinion shall
comply with Section 103 hereof.

          "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

          "Outstanding," when used with respect to Securities of a series,
means, as of the date of determination, all Securities of such series
theretofore authenticated and delivered under this Indenture, except:

          (i) Securities theretofore cancelled by the Trustee or delivered to
     the Trustee for cancellation;

          (ii) Securities for whose payment or redemption money in the necessary
     amount has been theretofore irrevocably deposited with the Trustee or any
     Paying Agent (other than the Company) in trust or set aside and segregated
     in trust by the Company (if the Company shall act as its own Paying Agent)
     for the Holders of such Securities; provided that, if such Securities are
     to be redeemed, notice of such redemption has been duly given pursuant to
     this Indenture or provision therefor satisfactory to the Trustee has been
     made; and

          (iii) Securities which have been paid pursuant to Section 306 or in
     exchange for or in lieu of which other Securities have been authenticated
     and delivered pursuant to this Indenture, other than any such Securities in
     respect of which there shall have been presented to the Trustee proof
     satisfactory to it that such Securities are held by a bona fide purchaser
     in whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, or whether a
quorum is present at a meeting of Holders of Securities, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding for such purposes shall be the principal amount thereof that would
be due and payable as of the date of such determination if the Maturity thereof
were accelerated on such date pursuant to Section 502, (b) the principal amount
of a Security denominated in a foreign currency shall be the U.S. dollar
equivalent, determined by the Company on the date of original issuance of such
Security, of the principal amount (or, in the case of an Original Issue Discount
Security, the U.S. dollar equivalent, determined on the date of original
issuance of such Security, of the amount determined as provided in (a) above),
of such Security and (c) Securities owned by the Company or any other obligor
upon


                                        5

<PAGE>   14


the Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not to be Outstanding, except that, in determining
whether the Trustee shall be protected in relying upon any such request, demand,
authorization, direction, notice, consent or waiver or upon any such
determination as to the presence of a quorum, only Securities which the Trustee
knows to be so owned shall be so disregarded. Securities so owned which have
been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.

          "Paying Agent" means any Person, which may include the Company,
authorized by the Company to pay the principal of (and premium, if any) and
interest on or Additional Amounts with respect to any one or more series of
Securities on behalf of the Company.

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

          "Place of Payment," when used with respect to the Securities of any
series, means the place or places where the principal of (and premium, if any)
and interest on and any Additional Amounts with respect to the Securities of
that series are payable as specified in accordance with Section 301 subject to
the provisions of Section 1002.

          "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

          "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to the terms
of the Security and this Indenture.

          "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to the terms of
the Security and this Indenture.

          "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 301, or, if not so specified, the last day of the
calendar month preceding such Interest Payment Date if such Interest Payment
Date is the fifteenth day of the calendar month or the fifteenth day of the
calendar month preceding such Interest Payment Date if such Interest Payment
Date is the first day of a calendar month, whether or not such day shall be a
Business Day.

          "Required Currency" has the meaning specified in Section 506.


                                       6
<PAGE>   15


          "Responsible Officer," when used with respect to the Trustee, means
the chairman or any vice chairman of the board of directors, the chairman or any
vice chairman of the executive committee of the board of directors, the
president, any vice president, the secretary, any assistant secretary, any trust
officer or assistant trust officer or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate trust
matter, any other officer to whom such matter is referred because of his
knowledge of and familiarity with the particular subject.

          "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

          "Security Custodian" means, with respect to Securities of a series
issued in global form, the Trustee for Securities of such series, acting in its
capacity as custodian with respect to the Securities of such series, or any
successor entity thereto, or any other Person designated by such Trustee, or
such seccessor entity, to act as custodian with respect tothe Securities of such
series.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

          "Senior Guarantee" means the Guarantee by each Guarantor of the
Company's payment obligations under this Indenture and on the Securities,
executed pursuant to the provisions of this Indenture.

          "Special Record Date" for the payment of any Defaulted Interest on the
Securities of any series means a date fixed by the Trustee pursuant to Section
307.

          "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.

          "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this Indenture until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder, and
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed, except as provided
in Section 905.


                                        7

<PAGE>   16


          "United States" means the United States of America (including the
states and the District of Columbia) and its "possessions," which include Puerto
Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

          "United States Alien" means any Person who, for United States federal
income tax purposes, is a foreign corporation, a non-resident alien individual,
a non-resident alien or foreign fiduciary of an estate or trust, or a foreign
partnership.

          "U.S. Government Obligations" has the meaning specified in Section
401.

          "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."

          "Wholly Owned Subsidiary" means a corporation all the outstanding
voting stock (other than any directors' qualifying shares) of which is owned,
directly or indirectly, by the Company or by one or more other Wholly Owned
Subsidiaries, or by the Company and one or more other Wholly Owned Subsidiaries.
For the purposes of this definition, "voting stock" means stock which ordinarily
has voting power for the election of directors, whether at all times or only so
long as no senior class of stock has such voting power by reason of any
contingency.

          "Yield to Maturity," when used with respect to any Original Issue
Discount Security, means the yield to maturity, if any, set forth on the face
thereof.

SECTION 102.  Incorporation by Reference of Trust Indenture Act.

          Whenever this Indenture refers to a provision of the Trust Indenture
Act, the provision is incorporated by reference in and made a part of this
Indenture. The following Trust Indenture Act terms used in this Indenture have
the following meanings:

          "Bankruptcy Act" means the Bankruptcy Act or Title 11 of the United
States Code.

          "indenture securities" means the Securities.

          "indenture security holder" means a Holder.

          "indenture to be qualified" means this Indenture.

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

          "obligor" on the indenture securities means the Company or any other
     obligor on the Securities.


                                        8

<PAGE>   17


          All terms used in this Indenture that are defined by the Trust
Indenture Act, defined by Trust Indenture Act reference to another statute or
defined by Commission rule under the Trust Indenture Act and not otherwise
defined herein have the meanings assigned to them therein.

SECTION 103.  Compliance Certificates and Opinions.

          Except as otherwise expressly provided by this Indenture, upon any
application or request by the Company to the Trustee to take any action under
any provision of this Indenture, the Company shall furnish to the Trustee an
Officers' Certificate stating that all conditions precedent, if any (including
any covenants the compliance with which constitutes a condition precedent
provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent, if any (including any covenants the
compliance with which constitutes a condition precedent) have been complied
with, except that in the case of any such application or request as to which the
furnishing of such documents is specifically required by any provision of this
Indenture relating to such particular application or request, no additional
certificate or opinion need be furnished.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

          (1) a statement that each Person signing such certificate or opinion
     has read such covenant or condition and the definitions herein relating
     thereto;

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

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

          (4) a statement as to whether, in the opinion of each such Person,
     such condition or covenant has been complied with.

SECTION 104.  Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.


                                        9

<PAGE>   18


          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 105.  Acts of Holders; Record Dates.

          (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing. Except as herein otherwise expressly provided, such action
shall become effective when such instrument or instruments or record thereof or
both are delivered to the Trustee and, where it is hereby expressly required, to
the Company. Such instrument or instruments and any such record (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments and so voting at any
such meeting. Proof of execution of any such instrument or of a writing
appointing any such agent, or the holding of any Person of a Security, shall be
sufficient for any purpose of this Indenture and (subject to Section 601)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section. The record of any meeting of Holders of Securities
shall be proved in the manner provided in Section 1306.

          The Company may set in advance a record date for purposes of
determining the identity of Holders of Securities entitled to vote or consent to
any action by vote or consent authorized or permitted under this Indenture. If a
record date is fixed, those Persons who were Holders of Outstanding Securities
at such record date (or their duly designated proxies), and only those Persons,
shall be entitled with respect to such Securities to take such action by vote or
consent or to revoke any vote or consent previously given, whether or not such
Persons continue to be Holders after such record date. Promptly after any record
date is set pursuant to this paragraph, the Company, at its own expense, shall
cause notice thereof to be given to the Trustee in writing in the manner
provided in Section 106 and to the relevant Holders as set forth in Section 107.

          (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such


                                       10

<PAGE>   19



execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          (c) The principal amount and serial numbers of Securities held by any
Person, and the date of holding the same, shall be proved by the Security
Register.

          (d) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Security. Any Holder or subsequent Holder may revoke the request, demand,
authorization, direction, notice, consent or other Act as to his Security or
portion of his Security; provided, however, that such revocation shall be
effective only if the Trustee receives the notice of revocation before the date
the Act becomes effective.

SECTION 106.  Notices, Etc., to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

          (1) the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at its Corporate Trust Office, Attention: Corporate
     Trust Administration, or

          (2) the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided) if
     in writing and mailed, first-class postage prepaid, to the Company
     addressed to it at the address of its principal office specified in the
     first paragraph of this Indenture or at any other address previously
     furnished in writing to the Trustee by the Company, Attention: Corporate
     Secretary.

SECTION 107.  Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of Securities of
any event, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, to
each Holder affected by such event, at the address of such Holder as it appears
in the Security Register, not later than the latest date, and not earlier than
the earliest date, prescribed for the giving of such notice.

          In case by reason of the suspension of regular mail service, or by
reason of any other cause it shall be impracticable to give such notice to
Holders of Securities by mail, then such


                                       11

<PAGE>   20


notification as shall be made with the approval of the Trustee shall constitute
a sufficient notification for every purpose hereunder. In any case in which
notice to Holders of Securities is given by mail, neither the failure to mail
such notice, nor any defect in any notice so mailed, to any particular Holder of
a Security, shall affect the sufficiency of such notice with respect to other
Holders of Securities.

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

SECTION 108.  Conflict With Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with any
provision of the Trust Indenture Act or another provision hereof which is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such provision of the Trust Indenture Act or such other provision
hereof which is required to be included by any provision of the Trust Indenture
Act shall control. If any provision of this Indenture modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
former provision shall be deemed to apply to this Indenture as so modified or to
be excluded.

SECTION 109.  Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 110.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.

SECTION 111.  Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 112.  Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, any Authenticating Agent, Paying Agent, Security Registrar, Security
Custodian and the Holders, any benefit or any legal or equitable right, remedy
or claim under this Indenture.


                                       12

<PAGE>   21



SECTION 113.  Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the laws of the State of New York, but without giving effect
to applicable principles of conflicts of law to the extent the application of
the laws of another jurisdiction would be required thereby.

SECTION 114.  Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture, the Securities or
the Senior Guarantees) payment of principal and interest (and premium and
Additional Amounts, if any) need not be made at such Place of Payment on such
date, but may be made on the next succeeding Business Day at such Place of
Payment with the same force and effect as if made on the Interest Payment Date
or Redemption Date, or at the Stated Maturity, provided that no interest shall
accrue with respect to such payment for the period from and after such Interest
Payment Date, Redemption Date or Stated Maturity, as the case may be.

SECTION 115.  Corporate Obligation.

          No recourse may be taken, directly or indirectly, against any
incorporator, subscriber to the capital stock, stockholder, officer, director or
employee of the Company, the Guarantors, or the Trustee or of any predecessor or
successor of the Company, the Guarantors, or the Trustee with respect to the
Company's obligations on the Securities, the obligations of the Guarantors on
the Senior Guarantees, or the obligations of the Company, the Guarantors, or the
Trustee under this Indenture or any certificate or other writing delivered in
connection herewith.

                                   ARTICLE TWO

                                 SECURITY FORMS

SECTION 201.  Forms Generally.

          The Securities and the Senior Guarantees to be endorsed thereon of
each series shall be in fully registered form and in substantially such form or
forms (including temporary or permanent global form) as shall be established by
or pursuant to a Board Resolution or in one or more indentures supplemental
hereto, in each case with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture and may have
such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or as may, consistently herewith, be determined by the
officers executing such Securities or Senior Guarantees to be endorsed thereon,
as the case may be, as evidenced by their execution of the Securities or Senior
Guarantees to be endorsed thereon, as the case may be. If temporary Securities
and Senior Guarantees of any series are issued in global form as permitted by
Section 304, the form thereof shall be established as provided in the preceding
sentence. A copy of the Board Resolution establishing


                                       13

<PAGE>   22



the form or forms of Securities and Senior Guarantees of any series (or any such
temporary global Security) shall be certified by the Secretary or an Assistant
Secretary of the Company and delivered to the Trustee at or prior to the
delivery of the Company Order contemplated by Section 303 for the authentication
and delivery of such Securities (or any such temporary global Security).

          The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution thereof.

SECTION 202.  Form of Trustee's Certificate of Authentication.

          The Trustee's certificate of authentication shall be in substantially
the following form:

          "This is one of the Securities with Senior Guarantees of the series
designated therein referred to in the within-mentioned Indenture.

                                      [                                  ],
                                       ---------------------------------
                                         as Trustee
                                        By
                                           ---------------------------------
                                                 Authorized Signatory."

SECTION 203.  Form of Senior Guarantee.

                                "SENIOR GUARANTEE

          For value received, each of the Guarantors named (or deemed herein to
be named) below hereby jointly and severally unconditionally guarantees, on a
senior basis to the Holder of the Security upon which this Senior Guarantee is
endorsed, and to the Trustee on behalf of such Holder, the due and punctual
payment of the principal of (and premium, if any) and interest on such Security
when and as the same shall become due and payable, whether at the Stated
Maturity, by acceleration, call for redemption, purchase or otherwise, according
to the terms thereof and of the Indenture referred to therein. In case of the
failure of the Company punctually to make any such payment, each of the
Guarantors hereby jointly and severally agrees to cause such payment to be made
punctually when and as the same shall become due and payable, whether at the
Stated Maturity or by acceleration, call for redemption, purchase or otherwise,
and as if such payment were made by the Company.

          Each of the Guarantors hereby jointly and severally agrees that its
obligations hereunder shall be unconditional, irrespective of the validity,
regularity or enforceability of such Security or the Indenture, the absence of
any action to enforce the same, any creation, exchange, release or
non-perfection of any Lien on any collateral for, or any release or amendment or
waiver of any term of any other guarantee of, or any consent to departure from
any requirement of any other guarantee of, all or of any of the Securities, the
election by the Trustee or any of the Holders in any


                                       14

<PAGE>   23


proceeding under Chapter 11 of the Bankruptcy Code of the application of Section
1111(b)(2) of the Bankruptcy Code, any borrowing or grant of a security interest
by the Company, as debtor-in- possession, under Section 364 of the Bankruptcy
Code, the disallowance, under Section 502 of the Bankruptcy Code, of all or any
portion of the claims of the Trustee or any of the Holders for payment of any of
the Securities, any waiver or consent by the Holder of such Security or by the
Trustee or either of them with respect to any provisions thereof or of the
Indenture, the obtaining of any judgment against the Company or any action to
enforce the same or any other circumstances which might otherwise constitute a
legal or equitable discharge or defense of a Guarantor. Each of the Guarantors
hereby waives the benefits of diligence, presentment, demand of payment, any
requirement that the Trustee or any of the Holders protect, secure, perfect or
insure any security interest in or other Lien on any property subject thereto or
exhaust any right or take any action against the Company or any other Person or
any collateral, filing of claims with a court in the event of insolvency or
bankruptcy of the Company, any right to require a proceeding first against the
Company, protest or notice with respect to such Security or the indebtedness
evidenced thereby and all demands whatsoever, and covenants that this Senior
Guarantee will not be discharged except by complete performance of the
obligations contained in such Security and in this Senior Guarantee. Each of the
Guarantors hereby agrees that, in the event of a default in payment of principal
(or premium, if any) or interest on such Security, whether at their Stated
Maturity, by acceleration, call for redemption, purchase or otherwise, legal
proceedings may be instituted by the Trustee on behalf of, or by, the Holder of
such Security, subject to the terms and conditions set forth in the Indenture,
directly against each of the Guarantors to enforce this Senior Guarantee without
first proceeding against the Company. Each Guarantor agrees that if, after the
occurrence and during the continuance of an Event of Default, the Trustee or any
of the Holders are prevented by applicable law from exercising their respective
rights to accelerate the maturity of the Securities, to collect interest on the
Securities, or to enforce or exercise any other right or remedy with respect to
the Securities, such Guarantor agrees to pay to the Trustee for the accounts of
the Holders, upon demand therefor, the amount that would otherwise have been due
and payable had such rights and remedies been permitted to be exercised by the
Trustee or any of the Holders.

          No reference herein to the Indenture and no provision of this Senior
Guarantee or of the Indenture shall alter or impair the Senior Guarantee of any
Guarantor, which is absolute and unconditional, of the due and punctual payment
of the principal (and premium, if any) and interest on the Security upon which
this Senior Guarantee is endorsed.

          Each Guarantor shall be subrogated to all rights of the Holder of such
Security against the Company in respect of any amounts paid by such Guarantor on
account of such Security pursuant to the provisions of its Senior Guarantee or
the Indenture; provided, however, that such Guarantor shall not be entitled to
enforce or to receive any payments arising out of, or based upon, such right of
subrogation until the principal of (and premium, if any) and interest on this
Security and all other Securities issued under the Indenture shall have been
paid in full.

          This Senior Guarantee shall remain in full force and effect and
continue to be effective should any petition be filed by or against the Company
for liquidation or reorganization, should the Company become insolvent or make
any assignment for the benefit of creditors or should


                                       15

<PAGE>   24



a receiver or trustee be appointed for all or any significant part of the
Company's assets, and shall, to the fullest extent permitted by law, continue to
be effective or be reinstated, as the case may be, if at any time payment and
performance of the Securities is, pursuant to applicable law, rescinded or
reduced in amount, or must otherwise be restored or returned by any obligee on
the Securities, whether as a "voidable preference," "fraudulent transfer" or
otherwise, all as though such payment or performance had not been made. In the
event that any payment, or any part thereof, is rescinded, reduced, restored or
returned, the Securities shall, to the fullest extent permitted by law, be
reinstated and deemed reduced only by such amount paid and not so rescinded,
reduced, restored or returned.

          The Guarantors shall have the right to seek contribution from any
non-paying Guarantor so long as the exercise of such right does not impair the
rights of the Holders under this Senior Guarantee.

          The Guarantors or any particular Guarantor shall be released from this
Senior Guarantee upon the terms and subject to certain conditions provided in
the Indenture.

          By delivery of a supplemental indenture to the Trustee in accordance
with the terms of the Indenture, each Person that becomes a Guarantor after the
date of the Indenture will be deemed to have executed and delivered this Senior
Guarantee for the benefit of the Holder of the Security upon which this Senior
Guarantee is endorsed, with the same effect as if such Guarantor were named
below and had executed and delivered this Senior Guarantee.

          All terms used in this Senior Guarantee which are defined in the
Indenture referred to in the Security upon which this Senior Guarantee is
endorsed shall have the meanings assigned to them in such Indenture.

          This Senior Guarantee shall not be valid or obligatory for any purpose
until the certificate of authentication on the Security upon which this Senior
Guarantee is endorsed shall have been executed by the Trustee under the
Indenture by manual signature.

          Reference is made to Article Fourteen of the Indenture for further
provisions with respect to this Senior Guarantee.

          THIS SENIOR GUARANTEE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE LAW OF THE STATE OF NEW YORK.

          IN WITNESS WHEREOF, each of the Guarantors has caused this Senior
Guarantee to be duly executed.


                              Each of the Guarantors Listed on Schedule I to the
                              Indenture, as Guarantor

                              By:                                             "
                                 ---------------------------------------------


                                       16

<PAGE>   25


SECTION 204.  Securities in Global Form.

          If Securities of a series are issuable in global form, as contemplated
by Section 301, then, notwithstanding clause (10) of Section 301 and the
provisions of Section 302, any such Security shall represent such of the
Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time to time endorsed thereon and that the aggregate amount of Outstanding
Securities represented thereby may from time to time be reduced to reflect
exchanges. Any endorsement of a Security in global form to reflect the amount,
or any increase or decrease in the amount, of Outstanding Securities represented
thereby shall be made by the Trustee in such manner and upon instructions given
by such Person or Persons as shall be specified in such Security or in a Company
Order to be delivered to the Trustee pursuant to Section 303 or Section 304.
Subject to the provisions of Section 303 and, if applicable, Section 304, the
Trustee shall deliver and redeliver any Security in permanent global form in the
manner and upon instructions given by the Person or Persons specified in such
Security or in the applicable Company Order. With respect to the Securities of
any series that are represented by a Security in global form, the Company
authorizes the execution and delivery by the Trustee of a letter of
representations or other similar agreement or instrument in the form customarily
provided for by the Depositary appointed with respect to such global Security.
Any Security in global form may be deposited with the Depositary or its nominee,
or may remain in the custody of the Security Custodian therefor pursuant to a
FAST Balance Certificate Agreement or similar agreement between the Trustee and
the Depositary. If a Company Order pursuant to Section 303 or 304 has been, or
simultaneously is, delivered, any instructions by the Company with respect to
endorsement or delivery or redelivery of a Security in global form shall be in
writing but need not comply with Section 103 and need not be accompanied by an
Opinion of Counsel.

          Members of, or participants in, the Depositary ("Agent Members") shall
have no rights under this Indenture with respect to any Security issued in
global form held on their behalf by the Depositary, or the Security Custodian as
its custodian, or under such global Security, and the Depositary may be treated
by the Company, the Security Custodian and any agent of the Company or the
Trustee as the absolute owner of such global Security for all purposes
whatsoever. Notwithstanding the foregoing, (i) the registered holder of a
Security of any series issued in global form may grant proxies and otherwise
authorize any Person, including Agent Members and Persons that may hold
interests through Agent Members, to take any action that a Holder of such series
is entitled to take under this Indenture or the Securities of such series and
(ii) nothing herein shall prevent the Company, the Security Custodian or any
agent of the Company or the Security Custodian, from giving effect to any
written certification, proxy or other authorization furnished by the Depositary
or shall impair, as between the Depositary and its Agent Members, the operation
of customary practices governing the exercise of the rights of a beneficial
owner of any Security.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be exchangeable
only as provided in this paragraph. If the beneficial owners of interests in a
permanent global Security are entitled to exchange such interest for Securities
of such series and of like tenor and principal amount of another authorized form
and denomination, as specified as contemplated by Section 301, then without


                                       17

<PAGE>   26


unnecessary delay but in any event not later than the earliest date on which
such interests may be so exchanged, the Company shall deliver to the Trustee
definitive Securities of that series in an aggregate principal amount equal to
the principal amount of such permanent global Security, executed by the Company.
On or after the earliest date on which such interests may be so exchanged, such
permanent global Security shall be surrendered from time to time in accordance
with instructions given to the Trustee and the Depositary (which instructions
shall be in writing but need not comply with Section 103 or be accompanied by an
Opinion of Counsel) by the Depositary or such other depositary as shall be
specified in the Company Order with respect thereto to the Trustee, as the
Company's agent for such purpose, to be exchanged, in whole or in part, for
definitive Securities of the same series without charge and the Trustee shall
authenticate and deliver, in exchange for each portion of such permanent global
Security, a like aggregate principal amount of other definitive Securities of
the same series of authorized denominations and of like tenor as the portion of
such permanent global Security to be exchanged; provided, however, that no such
exchanges may occur during a period beginning at the opening of business 15 days
before any selection of Securities of that series is to be redeemed and ending
on the relevant Redemption Date. Promptly following any such exchange in part,
such permanent global Security marked to evidence the partial exchange shall be
returned by the Trustee to the Depositary or such other depositary referred to
above in accordance with the instructions of the Company referred to above. If a
definitive Security is issued in exchange for any portion of a permanent global
Security after the close of business at the office or agency where such exchange
occurs on (i) any Regular Record Date and before the opening of business at such
office or agency on the relevant Interest Payment Date, or (ii) any Special
Record Date and before the opening of business at such office or agency on the
related proposed date for payment of Defaulted Interest, interest or Defaulted
Interest, as the case may be, will not be payable on such Interest Payment Date
or proposed date for payment, as the case may be, in respect of such Security,
but will be payable on such Interest Payment Date or proposed for payment, as
the case may be, only to the Person to whom interest in respect of such portion
of such permanent global Security is payable in accordance with the provisions
of this Indenture.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, transfers of a Security issued in global form shall
be limited to transfers of such global Security in whole, but not in part, to
the Depositary, its successors or their respective nominees. Interests of
beneficial owners in a Security issued in global form may be transferred in
accordance with the rules and procedures of the Depositary. Securities of any
series shall be transferred to all beneficial owners of a global Security of
such series in exchange for their beneficial interests in that global Security
if, and only if, either (1) the Depositary notifies the Company that it is
unwilling or unable to continue as Depositary for the global Security of such
series and a successor Depositary is not appointed by the Company within 90 days
of such notice, (2) an Event of Default has occurred with respect to such series
and is continuing and the Security Registrar has received a request from the
Depositary or the Trustee to issue Securities of such series in lieu of all or a
portion of that global Security (in which case the Company shall deliver
Securities of such series within 30 days of such request) or (3) the Company
determines not to have the Securities of such series represented by a global
Security.


                                       18

<PAGE>   27


          In connection with any transfer of a portion of the beneficial
interest in a global Security of any series to beneficial owners pursuant to
this Section 203, the Security Registrar shall reflect on its books and records
the date and a decrease in the principal amount of the global Security of that
series in an amount equal to the principal amount of the beneficial interest in
the global Security of that series to be transferred, and the Company shall
execute, and the Trustee upon receipt of a Company Order for the authentication
and delivery of Securities of that series shall authenticate and deliver, one or
more Securities of the same series of like tenor and amount.

          In connection with the transfer of all the beneficial interests in a
global Security of any series to beneficial owners pursuant to this Section 203,
the global Security shall be deemed to be surrendered to the Trustee for
cancellation, and the Company shall execute, and the Trustee shall authenticate
and deliver, to each beneficial owner identified by the Depositary in exchange
for its beneficial interest in the global Security, an equal aggregate principal
amount of Securities of that series of authorized denominations.

          Neither the Company nor the Trustee will have any responsibility or
liability for any aspect of the records relating to, or payments made on account
of, Securities of any series by the Depositary, or for maintaining, supervising
or reviewing any records of the Depositary relating to such Securities. Neither
the Company nor the Trustee shall be liable for any delay by the related global
Security Holder or the Depositary in identifying the beneficial owners, and each
such Person may conclusively rely on, and shall be protected in relying on,
instructions from such global Security Holder or the Depositary for all purposes
(including with respect to the registration and delivery, and the respective
principal amounts, of the Securities to be issued).

          The provisions of the last sentence of Section 303 shall apply to any
Security in global form if such Security was never issued and sold by the
Company and the Company delivers to the Trustee the Security in global form
together with written instructions (which need not comply with Section 103 and
need not be accompanied by an Opinion of Counsel) with regard to the reduction
in the principal amount of Securities represented thereby, together with the
written statement contemplated by the last sentence of Section 303.

          Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of (and
premium, if any) and interest on and any Additional Amounts with respect to any
Security in permanent global form shall be made to the Person or Persons
specified therein.

          Notwithstanding the provisions of Section 308 and except as provided
in the preceding paragraph, the Company, the Trustee and any agent of the
Company or of the Trustee shall treat a Person as the Holder of such principal
amount of Outstanding Securities represented by a global Security as shall be
specified in a written statement, if any, of the Holder of such global Security,
which is produced to the Security Registrar by such Holder.

          Global Securities may be issued in either temporary or permanent form.
Permanent global Securities will be issued in definitive form.


                                       19

<PAGE>   28


                                  ARTICLE THREE
 
                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution, and set forth in an Officers'
Certificate, or established in one or more indentures supplemental hereto, prior
to the issuance of Securities of any series,

          (1) the title of the Securities of the series (which shall distinguish
     the Securities of the series from all other Securities);

          (2) any limit upon the aggregate principal amount of the Securities of
     the series which may be authenticated and delivered under this Indenture
     (except for Securities authenticated and delivered upon registration of
     transfer of, or in exchange for, or in lieu of, other Securities of the
     series pursuant to Section 304, 305, 306, 906 or 1107);

          (3) whether any Securities of the series are to be issuable initially
     in temporary global form and whether any Securities of the series are to be
     issuable in permanent global form, and, if so, whether beneficial owners of
     interests in any such global Security may exchange such interests for
     Securities of such series and of like tenor of any authorized form and
     denomination and the circumstances under which any such exchanges may
     occur, if other than in the manner provided in Section 203, and the
     Depositary for any global Security or Securities of such series;

          (4) the manner in which any interest payable on a temporary global
     Security on any Interest Payment Date will be paid if other than in the
     manner provided in Section 304;

          (5) the date or dates on which the principal of (and premium, if any,
     on) the Securities of the series is payable or the method of determination
     thereof;

          (6) the rate or rates, or the method of determination thereof, at
     which the Securities of the series shall bear interest, if any, whether and
     under what circumstances Additional Amounts with respect to such Securities
     shall be payable, the date or dates from which such interest shall accrue,
     the Interest Payment Dates on which such interest shall be payable and, if
     other than as set forth in Section 101, the Regular Record Date for the
     interest payable on any Securities on any Interest Payment Date;


                                       20

<PAGE>   29


          (7) the place or places where, subject to the provisions of Section
     1002, the principal of (and premium, if any), any interest on and any
     Additional Amounts with respect to the Securities of the series shall be
     payable;

          (8) the period or periods within which, the price or prices (whether
     denominated in cash, securities or otherwise) at which and the terms and
     conditions upon which Securities of the series may be redeemed, in whole or
     in part, at the option of the Company, if the Company is to have that
     option, and the manner in which the Company must exercise any such option
     if different from those set forth herein;

          (9) the obligation, if any, of the Company to redeem or purchase
     Securities of the series pursuant to any sinking fund or analogous
     provisions or at the option of a Holder thereof and the period or periods
     within which, the price or prices (whether denominated in cash, securities
     or otherwise) at which and the terms and conditions upon which Securities
     of the series shall be redeemed or purchased in whole or in part pursuant
     to such obligation;

          (10) the denomination in which any Securities of that series shall be
     issuable, if other than denominations of $1,000 and any integral multiple
     thereof;

          (11) the currency or currencies (including composite currencies) if
     other than Dollars, or the form, including equity securities, other debt
     securities (including Securities), warrants or any other securities or
     property of the Company or any other Person, in which payment of the
     principal of (and premium, if any), any interest on and any Additional
     Amounts with respect to the Securities of the series shall be payable;

          (12) if the principal of (and premium, if any) or interest on or any
     Additional Amounts with Respect to the Securities of the series are to be
     payable, at the election of the Company or a Holder thereof, in a currency
     or currencies (including composite currencies) other than that in which the
     Securities are stated to be payable, the currency or currencies (including
     composite currencies) in which payment of the principal of (and premium, if
     any) and interest on, and any Additional Amounts with respect to,
     Securities of such series as to which such election is made shall be
     payable, and the periods within which and the terms and conditions upon
     which such election is to be made;

          (13) if the amount of payments of principal of (and premium, if any),
     any interest on and any Additional Amounts with respect to the Securities
     of the series may be determined with reference to any commodities,
     currencies or indices, values, rates or prices or any other index or
     formula, the manner in which such amounts shall be determined;

          (14) if other than the entire principal amount thereof, the portion of
     the principal amount of Securities of the series which shall be payable
     upon declaration of acceleration of the Maturity thereof pursuant to
     Section 502;


                                       21

<PAGE>   30


          (15) any additional means of satisfaction and discharge of this
     Indenture with respect to Securities of the series pursuant to Section 401,
     any additional conditions to discharge pursuant to Section 401 or 403 and
     the application, if any, of Section 403;

          (16) any deletions or modifications of or additions to the definitions
     set forth in Section 101, the Events of Default set forth in Section 501 or
     covenants of the Company set forth in Article Ten pertaining to the
     Securities of the series;

          (17) if the Securities of the series are to be convertible into or
     exchangeable for equity securities, other debt securities (including
     Securities), warrants or any other securities or property of the Company or
     any other Person, at the option of the Company or the Holder or upon the
     occurrence of any condition or event, the terms and conditions for such
     conversion or exchange; and

          (18) any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Indenture).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to the Board Resolution referred to above and (subject to Section 303) set
forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.

          At the option of the Company, interest on the Securities of any series
that bears interest may be paid by mailing a check to the address of any Holder
as such address shall appear in the Security Register.

          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
together with such Board Resolution shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Officers' Certificate setting forth the terms of the series.

SECTION 302.  Denominations.

          The Securities of each series shall be issuable in such denominations
as shall be specified as contemplated by Section 301. In the absence of any such
provisions with respect to the Securities of any series, the Securities of such
series denominated in Dollars shall be issuable in denominations of $1,000 and
any integral multiple thereof. Unless otherwise provided as contemplated by
Section 301 with respect to any series of Securities, any Securities of a series
denominated in a currency other than Dollars shall be issuable in denominations
that are the equivalent, as determined by the Company by reference to the noon
buying rate in The City of New York for cable transfers for such currency, as
such rate is reported or otherwise made available by the Federal Reserve Bank of
New York, on the applicable issue date for such Securities, of $1,000 and any
integral multiple thereof.


                                       22

<PAGE>   31


SECTION 303.  Execution, Authentication, Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its President, its Treasurer or one of its Vice
Presidents, under its corporate seal reproduced thereon or affixed thereto
attested by its Secretary or one of its Assistant Secretaries. The signature of
any of these officers on the Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company and having endorsed (by attachment or imprint) thereon the Senior
Guarantees executed as provided in Article Fourteen by the Guarantors to the
Trustee for authentication, together with a Company Order for the authentication
and delivery of such Securities, and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities with such Senior Guarantees
endorsed thereon, as in this Indenture provided and not otherwise.

          If the form or terms of the Securities with the Senior Guarantees
endorsed thereon of the series have been established in or pursuant to one or
more Board Resolutions or any other method permitted by Sections 201 and 301, in
authenticating such Securities with the Senior Guarantees endorsed thereon, and
accepting the additional responsibilities under this Indenture in relation to
such Securities with the Senior Guarantees endorsed thereon, the Trustee shall
be entitled to receive, and (subject to Section 601) shall be fully protected in
relying upon, an Opinion of Counsel stating,

          (a) if the form of such Securities with Senior Guarantees endorsed
     thereon has been established by or pursuant to Board Resolution as
     permitted by Section 201, that such form has been established in conformity
     with the provisions of this Indenture;

          (b) if the terms of such Securities with Senior Guarantees endorsed
     thereon have been established by or pursuant to Board Resolution as
     permitted by Section 301, that such terms have been established in
     conformity with the provisions of this Indenture; and

          (c) that such Securities with Senior Guarantees endorsed thereon, when
     authenticated and delivered by the Trustee and issued by the Company and
     the Guarantors in the manner and subject to any conditions specified in
     such Opinion of Counsel, will constitute legal, valid and binding
     obligations of the Company and the Guarantors, enforceable in accordance
     with their terms, except as such enforcement is subject to the effect of
     (i) bankruptcy, insolvency, fraudulent conveyance, reorganization or other
     laws relating to or affecting creditors' rights and (ii) general principles
     of equity (regardless of whether such enforcement is considered in a
     proceeding in equity or at law).


                                       23

<PAGE>   32


If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

          Each Security shall be dated the date of its authentication.

          No Security or Senior Guarantee endorsed thereon shall be entitled to
any benefit under this Indenture or be valid or obligatory for any purpose
unless there appears on such Security, a certificate of authentication
substantially in the form provided for herein executed by the Trustee by manual
signature, and such certificate upon any Security with the Senior Guarantees
endorsed thereon shall be conclusive evidence, and the only evidence, that such
Security and Senior Guarantees have been duly authenticated and delivered
hereunder. Notwithstanding the foregoing, if any Security shall have been
authenticated and delivered hereunder but never issued and sold by the Company,
and the Company shall deliver such Security to the Trustee for cancellation as
provided in Section 309 together with a written statement (which need not comply
with Section 103 and need not be accompanied by an Opinion of Counsel) stating
that such Security has never been issued and sold by the Company, for all
purposes of this Indenture such Security shall be deemed never to have been
authenticated and delivered hereunder and shall never be entitled to the
benefits of this Indenture.

SECTION 304.  Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company and the Guarantors may execute, and upon Company Order the Trustee shall
authenticate and deliver, temporary Securities with Senior Guarantees endorsed
thereon which are printed, lithographed, typewritten, mimeographed or otherwise
produced, in any authorized denomination, substantially of the tenor of the
definitive Securities with Senior Guarantees endorsed thereon in lieu of which
they are issued, in registered form and with such appropriate insertions,
omissions, substitutions and other variations as the officers of the Company
executing such Securities may determine, as evidenced by their execution of such
Securities and such Senior Guarantees.

          Except in the case of temporary Securities in global form (which shall
be exchanged in accordance with the provisions of the following paragraphs), if
temporary Securities of any series are issued, the Company and the Guarantors
will cause definitive Securities of that series to be prepared without
unreasonable delay. After the preparation of definitive Securities with Senior
Guarantees endorsed thereon of such series, the temporary Securities of such
series shall be exchangeable for definitive Securities of such series upon
surrender of the temporary Securities of such series at the office or agency of
the Company in a Place of Payment for that series, without charge to the Holder.
Upon surrender for cancellation of any one or more temporary Securities of any
series, the Company shall execute and the Trustee shall authenticate and deliver
in exchange therefor a like principal amount of definitive Securities with
Senior Guarantees endorsed thereon of the same series of authorized
denominations. Until so exchanged the temporary Securities of any


                                       24

<PAGE>   33


series shall in all respects be entitled to the same benefits under this
Indenture as definitive Securities of such series.

          All Outstanding temporary Securities of any series shall in all
respects be entitled to the same benefits under this Indenture as definitive
Securities of the same series and of like tenor authenticated and delivered
hereunder.

SECTION 305.  Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept for each series of Securities at
one of the offices or agencies maintained pursuant to Section 1002 a register
(the register maintained in such office and in any other office or agency of the
Company in a Place of Payment being herein sometimes collectively referred to as
the "Security Register") in which, subject to such reasonable regulations as it
may prescribe, the Company shall provide for the registration of Securities and
of transfers of Securities of such series. The Trustee is hereby initially
appointed "Security Registrar" for the purpose of registering Securities and
transfers of Securities as herein provided.

          Except as set forth in Section 204 or as may be provided pursuant to
Section 301, upon surrender for registration of transfer of any Security of any
series at the office or agency in a Place of Payment for that series, the
Company and the Guarantors shall execute, and the Trustee shall authenticate and
deliver, in the name of the designated transferee or transferees, one or more
new Securities with Senior Guarantees endorsed thereon of the same series and of
like tenor, of any authorized denominations and of a like aggregate principal
amount.

          At the option of the Holder, Securities of any series may be exchanged
for other Securities of the same series and of like tenor, of any authorized
denominations and of a like aggregate principal amount, upon surrender of the
Securities to be exchanged at such office or agency. Whenever any Securities are
so surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Securities which the Holder making the exchange is
entitled to receive.

          All Securities with Senior Guarantees endorsed thereon issued upon any
registration of transfer or exchange of Securities shall be the valid
obligations of the Company and the Guarantors, evidencing the same debt, and
entitled to the same benefits under this Indenture, as the Securities with
Senior Guarantees endorsed thereon surrendered upon such registration of
transfer or exchange.

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company, the Guarantors, or the
Trustee) be duly endorsed, or be accompanied by a written instrument of transfer
in form satisfactory to the Company, the Guarantors, and the Security Registrar
duly executed, by the Holder thereof or his attorney duly authorized in writing.


                                       25

<PAGE>   34


          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company and the Guarantors may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of
Securities, other than exchange pursuant to Section 304, 906 or 1107 not
involving any transfer.

          The Company and the Guarantors shall not be required (i) to issue,
register the transfer of or exchange Securities with Senior Guarantees endorsed
thereon of any series during a period beginning at the opening of business 15
days before the day of the mailing of a notice of redemption of Securities of
such series selected for redemption and ending at the close of business on the
day of the mailing of the relevant notice of redemption or (ii) to register the
transfer of or exchange any Security with Senior Guarantees endorsed thereon so
selected for redemption in whole or in part, except the unredeemed portion of
any Security being redeemed in part.

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
and the Guarantors shall execute and the Trustee shall authenticate and deliver
in exchange therefor a new Security with Senior Guarantees endorsed thereon of
the same series and of like tenor and principal amount and bearing a number not
contemporaneously outstanding.

          If there shall be delivered to the Company, the Guarantors, and the
Trustee (i) evidence to their satisfaction of the destruction, loss or theft of
any Security and (ii) such security or indemnity as may be required by them to
save each of them and any agent of either of them harmless, then, in the absence
of notice to the Company or the Trustee that such Security has been acquired by
a bona fide purchaser, the Company and the Guarantors shall execute and upon its
request the Trustee shall authenticate and deliver, in lieu of any such
destroyed, lost or stolen Security, a new Security with Senior Guarantees
endorsed thereon of the same series and of like tenor and principal amount and
bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company and the Guarantors in
their discretion may, instead of issuing a new Security with Senior Guarantees
endorsed thereon, pay such Security.

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

          Every new Security with Senior Guarantees endorsed thereon of any
series issued pursuant to this Section in lieu of any destroyed, lost or stolen
Security shall constitute an original additional contractual obligation of the
Company and the relevant Guarantor, whether or not the destroyed, lost or stolen
Security shall be at any time enforceable by anyone, and shall be entitled


                                       26

<PAGE>   35


to all the benefits of this Indenture equally and proportionately with any and
all other Securities of that series duly issued hereunder.

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

SECTION 307.  Payment of Interest; Interest Rights Preserved.

          Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for such interest. Unless
otherwise provided with respect to the Securities of any series, payment of
interest may be made at the option of the Company by check mailed or delivered
to the address of any Person entitled thereto as such address shall appear in
the Security Register.

          Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in clause (1) or (2) below:

          (1) The Company may elect to make payment of any Defaulted Interest to
     the Persons in whose names the Securities of such series (or their
     respective Predecessor Securities) are registered at the close of business
     on a Special Record Date for the payment of such Defaulted Interest, which
     shall be fixed in the following manner. The Company shall notify the
     Trustee in writing of the amount of Defaulted Interest proposed to be paid
     on each Security of such series and the date of the proposed payment, and
     at the same time the Company shall deposit with the Trustee an amount of
     money equal to the aggregate amount proposed to be paid in respect of such
     Defaulted Interest or shall make arrangements satisfactory to the Trustee
     for such deposit prior to the date of the proposed payment, such money when
     deposited to be held in trust for the benefit of the Persons entitled to
     such Defaulted Interest as in this Clause provided. Thereupon the Trustee
     shall fix a Special Record Date for the payment of such Defaulted Interest
     which shall be not more than 15 days and not less than 10 days prior to the
     date of the proposed payment and not less than 10 days after the receipt by
     the Trustee of the notice of the proposed payment. The Trustee shall
     promptly notify the Company of such Special Record Date and, in the name
     and at the expense of the Company, shall cause notice of the proposed
     payment of such Defaulted Interest and the Special Record Date therefor to
     be mailed, first-class postage prepaid, to each Holder of Securities of
     such series at his address as it appears in the Security Register, not less
     than 10 days prior to such Special Record Date. The Trustee may, in its
     discretion, in the name and at the expense of the Company, cause a similar
     notice to be published at least once in an Authorized Newspaper, but such
     publication shall not be a condition precedent to the establishment of such
     Special Record Date. Notice of the proposed payment


                                       27

<PAGE>   36


     of such Defaulted Interest and the Special Record Date therefor having been
     so mailed, such Defaulted Interest shall be paid to the Persons in whose
     names the Securities of such series (or their respective Predecessor
     Securities) are registered at the close of business on such Special Record
     Date and shall no longer be payable pursuant to the following clause (2).

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

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

SECTION 308.  Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Guarantors, the Trustee and any agent of the Company, the
Guarantors or the Trustee may treat the Person in whose name such Security is
registered as the owner of such Security for the purpose of receiving payment of
principal of (and premium, if any) and (subject to Sections 305 and 307)
interest on such Security and for all other purposes whatsoever, whether or not
such Security be overdue, and neither the Company, the Guarantors, the Trustee
nor any agent of the Company, any Guarantor or the Trustee shall be affected by
notice to the contrary.

SECTION 309.  Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee.
All Securities so delivered, together with the Senior Guarantees endorsed
thereon, shall be promptly cancelled by the Trustee. The Company may at any time
deliver to the Trustee for cancellation any Securities previously authenticated
and delivered hereunder which the Company may have acquired in any manner
whatsoever, and all Securities so delivered, together with the Senior Guarantees
endorsed thereon, shall be promptly cancelled by the Trustee. No Securities
shall be authenticated in lieu of or in exchange for any Securities cancelled as
provided in this Section, except as expressly permitted by this Indenture. All
cancelled Securities held by the Trustee, together with the Senior Guarantees
endorsed thereon, shall be disposed of as directed by a Company Order; provided
that the Trustee shall not be required to destroy such Securities.


                                       28

<PAGE>   37


SECTION 310.  Computation of Interest.

          Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a year of twelve 30-day months.

SECTION 311.  CUSIP Numbers.

          The Company in issuing the Securities may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in notices
of redemption as a convenience to Holders; provided that any such notice may
state that no representation is made as to the correctness of such numbers
either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be affected
by any defect in or omission of such numbers.

                                  ARTICLE FOUR

                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture.

          This Indenture shall upon Company Request cease to be of further
effect with respect to Securities of a series, and the Trustee, at the expense
of the Company, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture with respect to Securities of such series, when

          (1) either

               (A) all Securities of such series theretofore authenticated and
          delivered (other than (i) Securities which have been destroyed, lost
          or stolen and which have been replaced or paid as provided in Section
          306, and (ii) Securities for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

               (B) with respect to all Outstanding Securities of such series not
          theretofore delivered to the Trustee for cancellation, the Company has
          deposited or caused to be deposited with the Trustee as trust funds,
          under the terms of an irrevocable trust agreement in form and
          substance satisfactory to the Trustee, money or U.S. Government
          Obligations maturing as to principal and interest in such amounts and
          at such times as will (together with the income to accrue thereon and
          without consideration of any reinvestment thereof) be sufficient to
          pay and discharge (with such delivery in trust to be for the stated
          purpose of paying and discharging)


                                       29

<PAGE>   38


          the entire indebtedness on all Outstanding Securities of such series
          not theretofore delivered to the Trustee for cancellation for
          principal (and premium and Additional Amounts, if any) and interest to
          the Stated Maturity or any Redemption Date contemplated by the
          penultimate paragraph of this Section, as the case may be; or

               (C) the Company has properly fulfilled such other means of
          satisfaction and discharge as is specified, as contemplated by Section
          301, to be applicable to the Securities of such series;

          (2) the Company has paid or caused to be paid all other sums payable
     hereunder by the Company and the Guarantors with respect to the Outstanding
     Securities of such series;

          (3) the Company has complied with any other conditions specified
     pursuant to Section 301 to be applicable to the discharge of Securities of
     such series pursuant to this Section 401;

          (4) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the satisfaction and discharge of this
     Indenture with respect to the Outstanding Securities of such series have
     been complied with;

          (5) if the conditions set forth in Section 401(1)(A) have not been
     satisfied, and unless otherwise specified pursuant to Section 301 for the
     Securities of such series, the Company has delivered to the Trustee an
     Opinion of Counsel to the effect that the Holders of Securities of such
     series will not recognize income, gain or loss for United States federal
     income tax purposes as a result of such deposit, satisfaction and discharge
     and will be subject to United States federal income tax on the same amount
     and in the same manner and at the same time as would have been the case if
     such deposit, satisfaction and discharge had not occurred; and

          (6) no Default or Event of Default with respect to the Securities of
     such issue shall have occurred and be continuing on the date of such
     deposit or, insofar as clauses (5) or (6) of Section 501 are concerned, at
     any time in the period ending on the 91st day after the date of such
     deposit (it being understood that this condition shall not be deemed
     satisfied until the expiration of such period).

          For the purposes of this Indenture, "U.S. Government Obligations"
means direct non-callable obligations of, or non-callable obligations the
payment of principal of and interest on which is guaranteed by, the United
States of America, or to the payment of which obligations or guarantees the full
faith and credit of the United States of America is pledged, or beneficial
interests in a trust the corpus of which consists exclusively of money or such
obligations or a combination thereof.

          If any Outstanding Securities of such series are to be redeemed prior
to their Stated Maturity, whether pursuant to any optional redemption provisions
or in accordance with any


                                       30

<PAGE>   39


mandatory sinking fund requirement, the trust agreement referred to in subclause
(B) of clause (1) of this Section shall provide therefor and the Company shall
make such arrangements as are satisfactory to the Trustee for the giving of
notice of redemption by the Trustee in the name, and at the expense, of the
Company.

          Notwithstanding the satisfaction and discharge of this Indenture with
respect to the Outstanding Securities of such series pursuant to this Section
401, the obligations of the Company to the Trustee under Section 607, the
obligations to any Authenticating Agent under Section 614 and, except for a
discharge pursuant to subclause (A) of clause (1) of this Section, the
obligations of the Company under Sections 305, 306, 404, 610(e), 701, 1001 and
1002 and the obligations of the Trustee under Section 402 and the last paragraph
of Section 1003 shall survive.

SECTION 402.  Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest and Additional Amounts for the payment of which such money has
been deposited with the Trustee.

SECTION 403.  Discharge of Liability on Securities of Any Series.

          If this Section is specified, as contemplated by Section 301, to be
applicable to Securities of any series, the Company shall be deemed to have paid
and discharged the entire indebtedness on all the Outstanding Securities of such
series, the obligation of the Company under this Indenture and the Securities of
such series to pay the principal of (and premium, if any) and interest on and
any Additional Amounts with respect to Securities of such series, shall cease,
terminate and be completely discharged and the Trustee, at the expense of the
Company, shall execute proper instruments acknowledging such satisfaction and
discharge, when

          (1) the Company has complied with the provisions of Section 401 (other
     than any additional conditions specified pursuant to Sections 301 and
     401(3) and except that the Opinion of Counsel referred to in Section 401(5)
     shall state that it is based on a ruling by the Internal Revenue Service or
     other change since the date hereof under applicable Federal income tax law)
     with respect to all Outstanding Securities of such series,

          (2) the Company has delivered to the Trustee a Company Request
     requesting such satisfaction and discharge,

          (3) the Company has complied with any other conditions specified
     pursuant to Section 301 to be applicable to the discharge of Securities of
     such series pursuant to this Section 403, and


                                       31

<PAGE>   40


          (4) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the discharge of the indebtedness on the
     Outstanding Securities of such series have been complied with.

          Upon the satisfaction of the conditions set forth in this Section with
respect to all the Outstanding Securities of any series, the terms and
conditions of such series, including the terms and conditions with respect
thereto set forth in this Indenture, shall no longer be binding upon, or
applicable to, the Company; provided that, the Company shall not be discharged
from any payment obligations in respect of Securities of such series which are
deemed not to be Outstanding under clause (iii) of the definition thereof if
such obligations continue to be valid obligations of the Company under
applicable law or pursuant to Section 305 or 306.

SECTION 404.  Applicability of Defeasance Provisions; Company's Option to Effect
              Defeasance or Covenant Defeasance.

          Except as otherwise specified as contemplated by Section 301 for the
Securities of any series, the provisions of Sections 404 through 410 inclusive,
with such modifications thereto as may be specified pursuant to Section 301 with
respect to any series of Securities, shall be applicable to the Securities.

SECTION 405.  Defeasance and Discharge.

          On and after the date on which the conditions set forth in Section 407
are satisfied with respect to the Securities of any series, the Company shall be
deemed to have paid and been discharged from its obligations with respect to
such Securities (hereinafter "defeasance"). For this purpose, such defeasance
means that (i) the Company shall be deemed to have paid and discharged the
entire indebtedness represented by such Securities which shall thereafter be
deemed to be "Outstanding" only for the purposes of Section 408 and the other
Sections of this Indenture referred to in clause (ii) of this Section, and to
have satisfied all its other obligations under such Securities and this
Indenture insofar as such Securities are concerned (and the Trustee, upon
payment of all amounts due it under Section 607, at the expense of the Company,
shall on a Company Order execute proper instruments acknowledging the same) and
(ii) the Guarantors shall be released from all of their obligations under their
Senior Guarantees and under Article Fourteen of this Indenture except the
following which shall survive until otherwise terminated or discharged
hereunder: (i) the rights of Holders of such Securities to receive, solely from
the trust funds described in Section 407(a) and as more fully set forth in such
Section, payments in respect of the principal of, premium, if any, and interest,
if any, on such Securities when such payments are due; (ii) the Company's
obligations with respect to such Securities under Sections 305, 309, 1002 and
1003 and with respect to the payment of Additional Amounts, if any, payable with
respect to such Securities as specified pursuant to clause (13) of Section 301;
(iii) the Company's obligations with respect to a conversion or exchange of such
Securities; (iv) the rights, powers, trusts, duties and immunities of the
Trustee hereunder; and (v) this Article Four. Subject to compliance with this
Article Four, the Company may defease the Securities of any series under this
Section 405 notwithstanding a prior covenant


                                       32

<PAGE>   41


defeasance (as defined herein) under Section 406 with respect to such
Securities. Following a defeasance, payment of such Securities may not be
accelerated because of an Event of Default.

SECTION 406.  Covenant Defeasance.

          On and after the date on which the conditions set forth in Section 407
(other than Section 407(c)) are satisfied with respect to the Securities of or
within any series, (i) the Company shall be released from its obligations under
Sections 801 and 1004 and, if specified pursuant to Section 301, its obligations
under any other covenant, with respect to such Securities and (ii) the
occurrence of any event specified in clauses (4) and (7) of Section 501 (with
respect to any of the obligations described in clause (i) above) shall be deemed
not to be or result in an Event of Default (hereinafter, "covenant defeasance"),
and such Securities shall thereafter be deemed to be not "Outstanding" for the
purposes of any request, demand, authorization, direction, notice, waiver,
consent or declaration or Act of Holders (and the consequences of any thereof)
in connection with Section 801 or Section 1004, such other covenant specified
pursuant to Section 301, but shall continue to be deemed "Outstanding" for all
other purposes hereunder. For this purpose, such covenant defeasance means that,
with respect to such Securities, the Company may omit to comply with and shall
have no liability in respect of any term, condition or limitation set forth in
any such Section or such other covenant, whether directly or indirectly, by
reason of any reference elsewhere herein to any such Section or such other
covenant or by reason of reference in any such Section or such other covenant to
any other provision herein or in any other document and such omission to comply
shall not constitute a Default or an Event of Default under clauses (4) and (7)
of Section 501 or otherwise, as the case may be, but, except as specified above
the remainder of this Indenture and such Securities and any interest coupons
appertaining thereto shall be unaffected thereby.

SECTION 407.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to application of Section 405 or
Section 406 to any Securities of any series:

          (a) the Company shall have deposited or caused to be deposited
irrevocably with the Trustee (or another trustee satisfying the requirements of
Section 609 who shall agree to comply with, and shall be entitled to the
benefits of, the provisions of Sections 404 through 410 inclusive and the last
paragraph of Section 1003 applicable to the Trustee, for purposes of such
Sections also a "Trustee") as trust funds in trust for the purpose of making the
payments referred to in clauses (x) and (y) of this Section 407(a), specifically
pledged as security for, and dedicated solely to, the benefit of the Holders of
such Securities, with written instructions to the Trustee as to the application
thereof, (A) money in an amount (in such currency, currencies or currency unit
or units in which such Securities are then specified as payable at Stated
Maturity), or (B) if Securities of such series are not subject to repayment at
the option of Holders, Government Obligations which through the payment of
interest and principal in respect thereof in accordance with their terms will
provide, not later than one day before the due date of any payment referred to
in clause (x) or (y) of this Section 407(a), money in an amount or (C) a
combination thereof in an amount, sufficient, in the opinion of a nationally
recognized firm of independent certified public accountants or a nationally


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<PAGE>   42


recognized investment banking firm expressed in a written certification thereof
delivered to the Trustee, to pay and discharge, and which shall be applied by
the Trustee to pay and discharge, (x) the principal of, premium, if any, and
interest, if any, on such Securities on the Stated Maturity of such principal or
installment of principal or interest and (y) any mandatory sinking fund payments
applicable to such Securities on the date on which such payments are due and
payable in accordance with the terms of this Indenture and such Securities.
Before such a deposit the Company may make arrangements satisfactory to the
Trustee for the redemption of Securities at a future date or dates in accordance
with Article Eleven which shall be given effect in applying the foregoing.

          (b) No Default or Event of Default with respect to the Securities of
that series shall have occurred or be continuing on the date of such a deposit
or shall occur as a result of such a deposit or, insofar as clauses (5) and (6)
of Section 501 are concerned, shall occur at any time during the period ending
on the 91st day after the date of such deposit.

          (c) In the case of an election under Section 405, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel
to the effect that (i) the Company has received from or there has been published
by, the Internal Revenue Service a ruling, or (ii) since the date of execution
of this Indenture, there has been a change in the applicable U.S. Federal income
tax law, in either case to the effect that, and based thereon such opinion shall
confirm that, the Holders of such Securities and any interest coupons
appertaining thereto will not recognize income, gain or loss for U.S. Federal
income tax purposes as a result of such defeasance and will be subject to U.S.
Federal income tax on the same amount and in the same manner and at the same
times, as would have been the case if such deposit, defeasance and discharge had
not occurred.

          (d) In the case of an election under Section 406, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel
to the effect that the Holders of such Securities and any interest coupons
appertaining thereto will not recognize income, gain or loss for U.S. Federal
income tax purposes as a result of such covenant defeasance and will b subject
to U.S. Federal income tax on the same amount and in the same manner and at the
same times, as would have been the case if such deposit and covenant defeasance
had not occurred.

          (e) The Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent to the defeasance under Section 405 or the covenant defeasance under
Section 406 (as the case may be) have been complied with.

          (f) Such defeasance or covenant defeasance shall be effected in
compliance with any additional or substitute terms, conditions or limitations
which may be imposed on the Company in connection therewith as contemplated by
Section 301.

          (g) At the time of such deposit: (A) no Default in the payment of
principal of (or premium, if any) or interest on any Senior Debt shall have
occurred and be continuing or (B) no other Event of Default with respect to any
Senior Debt shall have occurred and be continuing and shall have resulted in
such Senior Debt becoming or being declared due and payable prior to the date on
which it would otherwise have become due and payable, or, in the case of either
clause (A) or


                                       34

<PAGE>   43



clause (B) above, each such Default or Event of Default shall have been cured or
waived or shall have ceased to exist.

SECTION 408.  Deposited Money and Government Obligations to be Held in Trust.

          Subject to the provisions of the last paragraph of Section 1003, all
money and Government Obligations (or other property as may be provided pursuant
to Section 301) (including the proceeds thereof) deposited with the Trustee
pursuant to Section 407 in respect of any Securities of any series shall be held
in trust and applied by the Trustee, in accordance with the provisions of such
Securities and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Holders of such Securities of all sums due and to
become due thereon in respect of principal, premium, if any, and interest, if
any, but such money need not be segregated from other funds except as provided
herein and except to the extent required by law.

SECTION 409.  Repayment to Company.

          The Trustee (and any Paying Agent) shall promptly pay to the Company
upon Company Request any excess money or securities held by them at any time.

          The provisions of the last paragraph of Section 1003 shall apply to
any money or securities held by the Trustee or any Paying Agent under this
Article Four that remain unclaimed for two years after the Maturity of any
series of Securities for which money or securities have been deposited pursuant
to Section 407(a).

SECTION 410.  Indemnity for Government Obligations.

          The Company shall pay, and shall indemnify the Trustee against, any
tax, fee or other charge imposed on or assessed against Government Obligations
deposited pursuant to this Article or the principal and interest and any other
amount received on such Government Obligations.

SECTION 411.  Reinstatement.

          If the Trustee or Paying Agent is unable to apply any money or U.S.
Government Obligations deposited with respect to Securities of any series in
accordance with Section 401 or Section 407 by reason of any legal proceeding or
by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture with respect to the Securities of such series
and the Securities of such series shall be revived and reinstated as though no
deposit had occurred pursuant to Section 401 or Section 407 until such time as
the Trustee or Paying Agent is permitted to apply all such money or U.S.
Government Obligations in accordance with Section 401 or Section 407; provided,
however, that if the Company has made any payment of principal of (or premium,
if any), or interest on or any Additional Amounts with respect to any Securities
because of the reinstatement of its obligations, the Company shall be subrogated
to the rights of the Holders of such Securities


                                       35

<PAGE>   44


to receive such payment from the money or U.S. Government Obligations held by
the Trustee or Paying Agent.

                                  ARTICLE FIVE

                                    REMEDIES

SECTION 501.  Events of Default.

          "Event of Default," wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be effected
by operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body),
unless it is either inapplicable to a particular series or it is specifically
deleted or modified in or pursuant to the supplemental indenture or Board
Resolution establishing such series of Securities or in the form of Security for
such series:

          (1) default in the payment of any interest on or any Additional
     Amounts with respect to any Security of that series when such interest or
     Additional Amounts become due and payable, and continuance of such default
     for a period of 30 days; or

          (2) default in the payment of the principal of (or premium, if any,
     on) any Security of that series at its Maturity; or

          (3) default in the deposit of any mandatory sinking fund payment, when
     and as due by the terms of a Security of that series and continuance of
     such default for a period of 30 days; or

          (4) default in the performance or breach of any covenant or warranty
     of the Company or any Guarantor in this Indenture (other than a covenant or
     warranty a default in whose performance or whose breach is elsewhere in
     this Section specifically dealt with or which has expressly been included
     in this Indenture solely for the benefit of one or more series of
     Securities other than that series), and continuance of such default or
     breach for a period of 90 days after there has been given, by registered or
     certified mail, to the Company by the Trustee or to the Company and the
     Trustee by the Holders of at least 25% in principal amount of all
     Outstanding Securities a written notice specifying such default or breach
     and requiring it to be remedied and stating that such notice is a "Notice
     of Default" hereunder; or

          (5) the entry by a court having jurisdiction in the premises of (A) a
     decree or order for relief in respect of the Company in an involuntary case
     or proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or (B) a decree or order adjudging the
     Company as bankrupt or insolvent, or approving as properly filed a petition
     seeking reorganization, arrangement, adjustment or composition of or in


                                       36

<PAGE>   45



     respect of the Company under any applicable Federal or State law, or
     appointing a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any substantial
     part of its property, or ordering the winding up or liquidation of its
     affairs, and the continuance of any such decree or order for relief or any
     such other decree or order unstayed and in effect for a period of 90
     consecutive days; or

          (6) the commencement by the Company of a voluntary case or proceeding
     under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or to the commencement of
     any bankruptcy or insolvency case or proceeding against it, or the filing
     by it, of a petition or answer or consent seeking reorganization or relief
     under any applicable Federal or State law, or the consent by it to the
     filing of such petition or to the appointment of or taking possession by a
     custodian, receiver, liquidator, assignee, trustee, sequestrator or similar
     official of the Company or of any substantial part of its property, or the
     making by it of an assignment for the benefit of creditors, or the
     admission by it in writing of its inability to pay its debts generally as
     they become due, or the taking of corporate action by the Company in
     furtherance of any such action; or

          (7) any other Event of Default provided with respect to Securities of
     that series.

          Notwithstanding the foregoing provisions of this Section 501, if the
principal of (and premium, if any) or any interest on, or Additional Amounts
with respect to, any Security is payable in a currency or currencies (including
a composite currency) other than Dollars and such currency (or currencies) is
(or are) not available to the Company for making payment thereof due to the
imposition of exchange controls or other circumstances beyond the control of the
Company (a "Conversion Event"), the Company will be entitled to satisfy its
obligations to Holders of the Securities by making such payment in Dollars in an
amount equal to the Dollar equivalent of the amount payable in such other
currency, as determined by the Company by reference to the noon buying rate in
The City of New York for cable transfers for such currency ("Exchange Rate"), as
such Exchange Rate is certified for customs purposes by the Federal Reserve Bank
of New York on the date of such payment, or, if such rate is not then available,
on the basis of the most recently available Exchange Rate. Notwithstanding the
foregoing provisions of this Section 501, any payment made under such
circumstances in Dollars where the required payment is in a currency other than
Dollars will not constitute an Event of Default under this Indenture.

          Promptly after the occurrence of a Conversion Event with respect to
Securities of any series, the Company shall give written notice thereof to the
Trustee; and the Trustee, promptly after receipt of such notice, shall give
notice thereof in the manner provided in Section 107 to the Holders of such
series. Promptly after the making of any payment in Dollars as a result of a
Conversion Event with respect to Securities of any series, the Company shall
give notice in the manner provided


                                       37

<PAGE>   46


in Section 107 to the Holders of such series, setting forth the applicable
Exchange Rate and describing the calculation of such payments.

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default with respect to any Securities of any series at
the time Outstanding occurs and is continuing, then in every such case the
Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of (i) the series affected by such default (in the case
of an Event of Default described in clause (1), (2), (3) or (7) of Section 501)
or (ii) all series of Securities (subject to the immediately following sentence,
in the case of an Event of Default described in clause (4) of Section 501) may
declare the principal amount (or, if any such Securities are Original Issue
Discount Securities, such portion of the principal amount as may be specified in
the terms of that series) of all of the Securities of the series affected by
such default or all series, as the case may be, to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. If an Event of Default
described in clause (5) or (6) of Section 501 shall occur, the principal amount
of the Outstanding Securities of all series ipso facto shall become and be
immediately due and payable without any declaration or other act on the part of
the Trustee or any Holder.

          At any time after such a declaration of acceleration with respect to
Securities of any series (or of all series, as the case may be) has been made
and before a judgment or decree for payment of the money due has been obtained
by the Trustee as hereinafter in this Article provided, the Holders of a
majority in principal amount of the Outstanding Securities of that series (or of
all series, as the case may be), by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

          (1) the Company has paid or deposited with the Trustee a sum
     sufficient to pay

               (A) all overdue interest on, and any Additional Amounts with
          respect to, all Securities of that series (or of all series, as the
          case may be),

               (B) the principal of (and premium, if any, on) any Securities of
          that series (or of all series, as the case may be) which have become
          due otherwise than by such declaration of acceleration and interest
          thereon at the rate or rates prescribed therefor in such Securities
          (in the case of Original Issue Discount Securities, the Securities'
          Yield to Maturity),

               (C) to the extent that payment of such interest is lawful, 
          interest upon overdue interest and any Additional Amounts at the rate
          or rates prescribed therefor in such Securities (in the case of
          Original Issue Discount Securities, the Securities' Yield to
          Maturity), and


                                       38

<PAGE>   47


               (D) all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel;

          and

          (2) all Events of Default with respect to Securities of that series
     (or of all series, as the case may be), other than the non-payment of the
     principal of Securities of that series (or of all series, as the case may
     be) which have become due solely by such declaration of acceleration, have
     been cured or waived as provided in Section 512.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

          The Company covenants that if

          (1) default is made in the payment of any installment of interest on,
     or any Additional Amounts with respect to, any Security of any series when
     such interest or Additional Amounts shall have become due and payable and
     such default continues for a period of 30 days, or

          (2) default is made in the payment of the principal of (or premium, if
     any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and Additional
Amounts and, to the extent that payment of such interest shall be legally
enforceable, interest on any overdue principal (and premium, if any) and on any
overdue interest and Additional Amounts, at the rate or rates prescribed
therefor in such Securities (or in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity), and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

          If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon such Securities, wherever
situated.

          If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights


                                       39

<PAGE>   48


of the Holders of Securities of such series by such appropriate judicial
proceedings as the Trustee shall deem most effectual to protect and enforce any
such rights, whether for the specific enforcement of any covenant or agreement
in this Indenture or in aid of the exercise of any power granted herein, or to
enforce any other proper remedy.

SECTION 504.  Trustee May File Proofs of Claim.

          In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any Guarantor or any other
obligor upon the Securities or the property of the Company or of such other
obligor or their creditors, the Trustee (irrespective of whether the principal
(or lesser amount in the case of Original Issue Discount Securities) of the
Securities shall then be due and payable as therein expressed or by declaration
or otherwise and irrespective of whether the Trustee shall have made any demand
on the Company for the payment of overdue principal (and premium, if any),
interest or any Additional Amounts) shall be entitled and empowered, by
intervention in such proceeding or otherwise,

          (i) to file and prove a claim for the whole amount of principal (or
     lesser amount in the case of Original Issue Discount Securities) (and
     premium, if any) and interest and any Additional Amounts owing and unpaid
     in respect of the Securities and to file such other papers or documents as
     may be necessary or advisable in order to have the claims of the Trustee
     (including any claim for the reasonable compensation, expenses,
     disbursements and advances of the Trustee, its agents and counsel) and of
     the Holders allowed in such judicial proceeding, and

          (ii) to collect and receive any monies or other property payable or
     deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 607.

          Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceedings; provided, however,
that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official.


                                       40

<PAGE>   49


SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or 
              Coupons.

          All rights of action and claim under this Indenture or the Securities
or the Senior Guarantees may be prosecuted and enforced by the Trustee without
possession of any of the Securities or the production thereof in any proceeding
relating thereto, and any such proceeding instituted by the Trustee shall be
brought in its own name as trustee of an express trust, and any recovery of
judgment shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.

SECTION 506.  Application of Money Collected.

          Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal (or premium,
if any), interest or any Additional Amounts, upon presentation of the
Securities, and the notation thereon of the payment if only partially paid and
upon surrender thereof if fully paid:

          FIRST: To the payment of all amounts due the Trustee under Section
     607;

          SECOND: To the payment of the amounts then due and unpaid for
     principal of (and premium, if any) and interest on and any Additional
     Amounts with respect to the Securities in respect of which or for the
     benefit of which such money has been collected, ratably, without preference
     or priority of any kind, according to the amounts due and payable on such
     Securities for principal (and premium, if any), interest and Additional
     Amounts, respectively; and

          THIRD: The balance, if any, to the Person or Persons entitled thereto.

          To the fullest extent allowed under applicable law, if for the purpose
of obtaining judgment against the Company in any court it is necessary to
convert the sum due in respect of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to the Securities of any
series (the "Required Currency") into a currency in which a judgment will be
rendered (the "Judgment Currency"), the rate of exchange used shall be the rate
at which in accordance with normal banking procedures the Trustee could purchase
in The City of New York the Required Currency with the Judgment Currency on the
New York Business Day next preceding that on which final judgment is given.
Neither the Company nor the Trustee shall be liable for any shortfall nor shall
it benefit from any windfall in payments to Holders of Securities under this
Section caused by a change in exchange rates between the time the amount of a
judgment against it is calculated as above and the time the Trustee converts the
Judgment Currency into the Required Currency to make payments under this Section
to Holders of Securities, but payment of such judgment shall discharge all
amounts owed by the Company on the claim or claims underlying such judgment.


                                       41

<PAGE>   50


SECTION 507.  Limitation on Suits.

          Subject to Section 508, no Holder of any Security of any series shall
have any right to institute any proceeding, judicial or otherwise, with respect
to this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless

          (1) an Event of Default with respect to Securities of such series
     shall have occurred and be continuing and such Holder has previously given
     written notice to the Trustee of such continuing Event of Default;

          (2) the Holders of not less than 25% in principal amount of the
     Outstanding Securities of that series shall have made written request to
     the Trustee to institute proceedings in respect of such Event of Default in
     its own name as Trustee hereunder;

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

          (4) the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and

          (5) no direction inconsistent with such written request has been given
     to the Trustee during such 60-day period by the Holders of a majority in
     principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and
              Interest.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 307) interest on and any Additional Amounts with respect to such
Security on the Stated Maturity or Maturities expressed in such Security (or, in
the case of redemption, on the Redemption Date) and to institute suit for the
enforcement of any such payment, and such rights shall not be impaired or
affected without the consent of such Holder.

SECTION 509.   Restoration of Rights and Remedies.

          If the Trustee or any Holder of any Security has instituted any
proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every
such case the Company, the Trustee and the Holders shall, subject


                                       42

<PAGE>   51


to any determination in such proceeding, be restored severally and respectively
to their former positions hereunder, and thereafter all rights and remedies of
the Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510.  Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last paragraph
of Section 306, no right or remedy herein conferred upon or reserved to the
Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

SECTION 511.  Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any Securities
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein. Every right and remedy given by this Article or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.

SECTION 512.  Control by Holders.

          With respect to Securities of any series, the Holders of a majority in
principal amount of the Outstanding Securities of such series shall have the
right to direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, relating to or arising under an Event of Default described in
clause (1), (2), (3) or (7) of Section 501, and with respect to all Securities
the Holders of a majority in principal amount of all Outstanding Securities
shall have the right to direct the time, method and place of conducting any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, not relating to or arising under such an Event of Default, provided
that in each such case

          (1) such direction shall not be in conflict with any rule of law or
     with this Indenture, and

          (2) the Trustee may take any other action deemed proper by the Trustee
     which is not inconsistent with such direction.


                                       43

<PAGE>   52


SECTION 513.  Waiver of Past Defaults.

          The Holders of a majority in principal amount of the Outstanding
Securities of any series may on behalf of the Holders of all the Securities of
such series waive any past default hereunder with respect to such series and its
consequences, and the Holders of a majority in principal amount of all
Outstanding Securities may on behalf of the Holders of all Securities waive any
other past default hereunder and its consequences, except in each case a default

          (1) in the payment of the principal of (or premium, if any) or
     interest on, or any Additional Amounts with respect to, any Security, or

          (2) in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security affected.

          Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

          All parties to this Indenture agree, and each Holder of any Security
by his acceptance thereof shall be deemed to have agreed, that any court may in
its discretion require, in any suit for the enforcement of any right or remedy
under this Indenture, or in any suit against the Trustee for any action taken or
omitted by it as Trustee, the filing by any party litigant in such suit of an
undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the
provisions of this Section shall not apply to any suit instituted by the Company
or any Guarantor, to any suit instituted by the Trustee, to any suit instituted
by any Holder, or group of Holders, holding in the aggregate more than 10% in
principal amount of the Outstanding Securities of any series, or to any suit
instituted by any Holder for the enforcement of the payment of the principal of
(or premium, if any) or interest on, or any Additional Amounts with respect to,
any Security on or after the Stated Maturity or Maturities expressed in such
Security (or, in the case of redemption, on or after the Redemption Date).

SECTION 515.   Waiver of Stay or Extension Laws.

          The Company and each Guarantor covenants (to the extent that it may
lawfully do so) that it will not at any time insist upon, or plead, or in any
manner whatsoever claim or take the benefit or advantage of, any stay or
extension law wherever enacted, now or at any time hereafter in force, which may
affect the covenants or the performance of this Indenture; and the Company and
each Guarantor (to the extent that it may lawfully do so) hereby expressly
waives all benefit or advantage of any such law, and covenants that it will not
hinder, delay or impede the execution of


                                       44

<PAGE>   53



any power herein granted to the Trustee, but will suffer and permit the
execution of every such power as though no such law had been enacted.

                                   ARTICLE SIX

                                   THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

          (a) Except during the continuance of an Event of Default with respect
     to the Securities of any series,

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

               (2) in the absence of bad faith on its part, the Trustee may
          conclusively rely, as to the truth of the statements and the
          correctness of the opinions expressed therein, upon certificates or
          opinions furnished to the Trustee and conforming to the requirements
          of this Indenture; but in the case of any such certificates or
          opinions which by any provision hereof are specifically required to be
          furnished to the Trustee, the Trustee shall be under a duty to examine
          the same to determine whether or not they conform to the requirements
          of this Indenture.

          (b) In case an Event of Default has occurred and is continuing with
     respect to the Securities of any series, the Trustee shall exercise such of
     the rights and powers vested in it by this Indenture, and use the same
     degree of care and skill in their exercise, as a prudent man would exercise
     or use under the circumstances in the conduct of his own affairs.

          (c) No provision of this Indenture shall be construed to relieve the
     Trustee from liability for its own negligent action, its own negligent
     failure to act or its own willful misconduct, except that

               (1) this Subsection shall not be construed to limit the effect of
          Subsection (a) of this Section;

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

               (3) the Trustee shall not be liable with respect to any action 
          taken or omitted to be taken by it in good faith in accordance with
          the direction of the Holders of a majority in principal amount of the
          Outstanding Securities of any series or of all series, determined as
          provided in Section 511, relating to the time, method and place


                                       45

<PAGE>   54


          of conducting any proceeding for any remedy available to the Trustee,
          or exercising any trust or power conferred upon the Trustee, under
          this Indenture with respect to the Securities of such series; and

               (4) no provision of this Indenture shall require the Trustee to
          expend or risk its own funds or otherwise incur any financial
          liability in the performance of any of its duties hereunder, or in the
          exercise of any of its rights or powers, if it shall have reasonable
          grounds for believing that repayment of such funds or indemnity
          satisfactory to it against such risk or liability is not assured to
          it.

          (d) Whether or not therein expressly so provided, every provision of
     this Indenture relating to the conduct or affecting the liability of or
     affording protection to the Trustee shall be subject to the provisions of
     this Section.

SECTION 602.  Notice of Defaults.

          Within 90 days after the occurrence of any default hereunder with
respect to the Securities of any series, the Trustee shall give notice of such
default hereunder known to the Trustee to all Holders of Securities of such
series in the manner provided in Section 107, unless such default shall have
been cured or waived; provided, however, that, except in the case of a default
in the payment of the principal of (or premium, if any) or interest on, or any
Additional Amounts with respect to, any Security of such series or in the
payment of any sinking fund installment with respect to Securities of such
series, the Trustee shall be protected in withholding such notice if and so long
as the board of directors, the executive committee or a trust committee of
directors or Responsible Officers of the Trustee in good faith determines that
the withholding of such notice is in the interest of the Holders of Securities
of such series; and provided, further, that in the case of any default of the
character specified in Section 501(4) with respect to Securities of such series,
no such notice to Holders shall be given until at least 30 days after the
occurrence thereof. For the purpose of this Section, the term "default" means
any event, act or condition which is, or after notice or lapse of time or both
would become, an Event of Default with respect to Securities of such series.

SECTION 603.  Certain Rights of Trustee.

          Subject to the provisions of Section 601:

          (a) the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon, other evidence of indebtedness or other
     paper or document believed by it to be genuine and to have been signed or
     presented by the proper party or parties;

          (b) any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order and any
     resolution of the Board of Directors may be sufficiently evidenced by a
     Board Resolution;


                                       46

<PAGE>   55


          (c) whenever in the administration of this Indenture the Trustee shall
     deem it desirable that a matter be proved or established prior to taking,
     suffering or omitting any action hereunder, the Trustee (unless other
     evidence be herein specifically prescribed) may, in the absence of bad
     faith on its part, rely upon an Officers' Certificate;

          (d) the Trustee may consult with counsel and the written advice of
     such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (e) the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders pursuant to this Indenture, unless such Holders shall
     have offered to the Trustee security or indemnity satisfactory to it
     against the costs, expenses and liabilities which might be incurred by it
     in compliance with such request or direction;

          (f) the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon, other evidence of indebtedness or other
     paper or document, but the Trustee, in its discretion, may make such
     further inquiry or investigation into such facts or matters as it may see
     fit, and, if the Trustee shall determine to make such further inquiry or
     investigation, it shall be entitled to examine the books, records and
     premises of the Company, personally or by agent or attorney; and

          (g) the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and, except for any Affiliates of the Trustee, the Trustee shall
     not be responsible for any misconduct or negligence on the part of any
     agent or attorney appointed with due care by it hereunder.

SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities and in the Senior
Guarantees endorsed thereon, except the Trustee's certificates of
authentication, shall be taken as the statements of the Company or the
Guarantors, as the case may be, and the Trustee assumes no responsibility for
their correctness. The Trustee makes no representations as to the validity or
sufficiency of this Indenture or of the Securities or of the Senior Guarantees
endorsed thereon. The Trustee shall not be accountable for the use or
application by the Company of Securities or the proceeds thereof.

SECTION 605.  May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company or any Guarantor, in its individual
or any other capacity, may become the owner or pledgee of Securities and,
subject to Sections 608 and 613, may otherwise deal with the Company or any
Guarantor with the same rights it would have if it were not Trustee,
Authenticating Agent, Paying Agent, Security Registrar or such other agent.


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<PAGE>   56


SECTION 606.  Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company or any Guarantor, as the case may be.

SECTION 607.  Compensation and Reimbursement.

          The Company agrees

          (1) to pay to the Trustee from time to time compensation for all
     services rendered by it hereunder (which compensation shall not be limited
     by any provision of law in regard to the compensation of a trustee of an
     express trust);

          (2) except as otherwise expressly provided herein, to reimburse the
     Trustee upon its request for all reasonable expenses, disbursements and
     advances incurred or made by the Trustee in accordance with any provision
     of this Indenture (including the compensation and the reasonable expenses
     and disbursements of its agents and counsel), except any such expense,
     disbursement or advance as may be attributable to its negligence or bad
     faith; and

          (3) to indemnify the Trustee and each of its directors, officers,
     employees, agents and/or representatives for, and to hold each of them
     harmless against, any loss, liability or expense incurred without
     negligence or bad faith on each of their part, arising out of or in
     connection with the acceptance or administration of the trust or trusts
     hereunder, including the costs and expenses of defending themselves against
     any claim or liability in connection with the exercise or performance of
     any of the Trustee's powers or duties hereunder.

          As security for the performance of the obligations of the Company
under this Section, the Trustee shall have a lien prior to the Securities upon
all property and funds held or collected by the Trustee as such, except funds
held in trust for the payment of principal of, premium, if any, or interest, if
any, on, or any Additional Amounts with respect to, particular Securities.

          Any expenses and compensation for any services rendered by the Trustee
after the occurrence of an Event of Default specified in clause (5) or (6) of
Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

          The provisions of this Section shall survive the termination of this
Indenture.

SECTION 608.  Disqualification; Conflicting Interests.

          (a) If the Trustee has or shall acquire any conflicting interest, as
     defined in this Section, with respect to the Securities of any series, it
     shall, within 90 days after ascertaining


                                       48

<PAGE>   57


     that it has such conflicting interest, either eliminate such conflicting
     interest or resign with respect to the Securities of that series in the
     manner and with the effect hereinafter specified in this Article.

          (b) In the event that the Trustee shall fail to comply with the
     provisions of Subsection (a) of this Section with respect to the Securities
     of any series, the Trustee shall, within 10 days after the expiration of
     such 90-day period, transmit by mail to all Holders of Securities of that
     series, as their names and addresses appear in the Security Register,
     notice of such failure.

          (c) For the purposes of this Section, the term "conflicting interest"
     shall have the meaning specified in Section 310(b) of the Trust Indenture
     Act and the Trustee shall comply with Section 310(b) of the Trust Indenture
     Act; provided that there shall be excluded from the operation of Section
     310(b)(1) of the Trust Indenture Act with respect to the Securities of any
     series any indenture or indentures under which other securities, or
     certificates of interest or participation in other securities, of the
     Company are outstanding, if the requirements for such exclusion set forth
     in Section 310(b)(1) of the Trust Indenture Act are met. For purposes of
     the preceding sentence, the optional provision permitted by the second
     sentence of Section 310(b)(9) of the Trust Indenture Act shall be
     applicable.

SECTION 609.  Corporate Trustee Required; Eligibility.

          There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States of
America, any State thereof or the District of Columbia, authorized under such
laws to exercise corporate trust powers, having a combined capital and surplus
of at least $50,000,000 and subject to supervision or examination by Federal or
State or District of Columbia authority. If such corporation publishes reports
of condition at least annually, pursuant to law or to the requirements of said
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such corporation shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published. If at any time the Trustee shall cease to be eligible in
accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

          The Indenture shall always have a Trustee who satisfies the
requirements of Sections 310(a)(1), 310(a)(2) and 310(a)(5) of the Trust
Indenture Act.

SECTION 610.  Resignation and Removal; Appointment of Successor.

          (a) No resignation or removal of the Trustee and no appointment of a
     successor Trustee pursuant to this Article shall become effective until the
     acceptance of appointment by the successor Trustee in accordance with the
     applicable requirements of Section 611.

          (b) The Trustee may resign at any time with respect to the Securities
     of one or more series by giving written notice thereof to the Company. If
     the instrument of acceptance


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<PAGE>   58


     by a successor Trustee required by Section 611 shall not have been
     delivered to the resigning Trustee within 30 days after the giving of such
     notice of resignation, the resigning Trustee may petition any court of
     competent jurisdiction for the appointment of a successor Trustee with
     respect to the Securities of such series.

          (c) The Trustee may be removed at any time with respect to the
     Securities of any series by Act of the Holders of a majority in principal
     amount of the Outstanding Securities of such series, delivered to the
     Trustee and to the Company.

          (d) If at any time:

               (1) the Trustee shall fail to comply with Section 608(a) after
          written request therefor by the Company or by any Holder who has been
          a bona fide Holder of a Security for at least six months, or

               (2) the Trustee shall cease to be eligible under Section 609 and
          shall fail to resign after written request therefor by the Company or
          by any such Holder of Securities, or

               (3) the Trustee shall become incapable of acting or shall be
          adjudged a bankrupt or insolvent or a receiver of the Trustee or of
          its property shall be appointed or any public officer shall take
          charge or control of the Trustee or of its property or affairs for the
          purpose of rehabilitation, conservation or liquidation,

     then, in any such case, (i) the Company by a Board Resolution may remove
     the Trustee with respect to all Securities, or (ii) subject to Section 513,
     any Holder who has been a bona fide Holder of a Security for at least six
     months may, on behalf of himself and all others similarly situated,
     petition any court of competent jurisdiction for the removal of the Trustee
     with respect to all Securities and the appointment of a successor Trustee
     or Trustees.

          (e) If the Trustee shall resign, be removed or become incapable of
     acting, or if a vacancy shall occur in the office of Trustee for any cause,
     with respect to the Securities of one or more series, the Company, by a
     Board Resolution, shall promptly appoint a successor Trustee or Trustees
     with respect to the Securities of that or those series (it being understood
     that any such successor Trustee may be appointed with respect to the
     Securities of one or more or all of such series and that at any time there
     shall be only one Trustee with respect to the Securities of any particular
     series) and such successor Trustee or Trustees shall comply with the
     applicable requirements of Section 611. If no successor Trustee with
     respect to the Securities of any series shall have been so appointed by the
     Company and accepted appointment in the manner required by Section 611, any
     Holder who has been a bona fide Holder of a Security of such series for at
     least six months may, on behalf of himself and all others similarly
     situated, petition any court of competent jurisdiction for the appointment
     of a successor Trustee with respect to the Securities of such series.


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<PAGE>   59


          (f) The Company shall give notice of each resignation and each removal
     of the Trustee with respect to the Securities of any series and each
     appointment of a successor Trustee with respect to the Securities of any
     series by mailing written notice of such event by first-class mail, postage
     prepaid, to all Holders of Securities of such series as their names and
     addresses appear in the Security Register. Each notice shall include the
     name of the successor Trustee with respect to the Securities of such series
     and the address of its Corporate Trust Office.

SECTION 611.  Acceptance of Appointment by Successor.

          (a) In case of the appointment hereunder of a successor Trustee with
     respect to all Securities, every such successor Trustee so appointed shall
     execute, acknowledge and deliver to the Company, the Guarantors and to the
     retiring Trustee an instrument accepting such appointment, and thereupon
     the resignation or removal of the retiring Trustee shall become effective
     and such successor Trustee, without any further act, deed or conveyance,
     shall become vested with all the rights, powers, trusts and duties of the
     retiring Trustee; but, on the request of the Company or the successor
     Trustee, such retiring Trustee shall, upon payment of its charges, execute
     and deliver an instrument transferring to such successor Trustee all the
     rights, powers and trusts of the retiring Trustee and shall duly assign,
     transfer and deliver to such successor Trustee all property and money held
     by such retiring Trustee hereunder.

          (b) In case of the appointment hereunder of a successor Trustee with
     respect to the Securities of one or more (but not all) series, the Company,
     the Guarantors, the retiring Trustee and each successor Trustee with
     respect to the Securities of one or more series shall execute and deliver
     an indenture supplemental hereto wherein each successor Trustee shall
     accept such appointment and which (1) shall contain such provisions as
     shall be necessary or desirable to transfer and confirm to, and to vest in,
     each successor Trustee all the rights, powers, trusts and duties of the
     retiring Trustee with respect to the Securities of that or those series to
     which the appointment of such successor Trustee relates, (2) if the
     retiring Trustee is not retiring with respect to all Securities, shall
     contain such provisions as shall be deemed necessary or desirable to
     confirm that all the rights, powers, trusts and duties of the retiring
     Trustee with respect to the Securities of that or those series as to which
     the retiring Trustee is not retiring shall continue to be vested in the
     retiring Trustee and (3) shall add to or change any of the provisions of
     this Indenture as shall be necessary to provide for or facilitate the
     administration of the trusts hereunder by more than one Trustee, it being
     understood that nothing herein or in such supplemental indenture shall
     constitute such Trustees co-trustees of the same trust and that each such
     Trustee shall be trustee of a trust or trusts hereunder separate and apart
     from any trust or trusts hereunder administered by any other such Trustee;
     and upon the execution and delivery of such supplemental indenture, the
     resignation or removal of the retiring Trustee shall become effective to
     the extent provided therein and each such successor Trustee, without any
     further act, deed or conveyance, shall become vested with all the rights,
     powers, trusts and duties of the retiring Trustee with respect to the
     Securities of that or those series to which the appointment of such
     successor Trustee relates;


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<PAGE>   60


     but, on request of the Company, any Guarantor or any successor Trustee,
     such retiring Trustee shall duly assign, transfer and deliver to such
     successor Trustee all property and money held by such retiring Trustee
     hereunder with respect to the Securities of that or those series to which
     the appointment of such successor Trustee relates.

          (c) Upon request of any such successor Trustee, the Company and the
     Guarantors shall execute any and all instruments for more fully and
     certainly vesting in and confirming to such successor Trustee all such
     rights, powers and trusts referred to in paragraph (a) or (b) of this
     Section, as the case may be.

          (d) No successor Trustee shall accept its appointment unless at the
     time of such acceptance such successor Trustee shall be qualified and
     eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.

SECTION 613.  Preferential Collection of Claims Against Company.

          The Trustee shall comply with Section 311(a) of the Trust Indenture
Act, excluding any creditor relationship described in Section 311(b) of the
Trust Indenture Act. A Trustee who has resigned or been removed shall be subject
to Section 311(a) of the Trust Indenture Act to the extent indicated therein.

SECTION 614.  Appointment of Authenticating Agent.

                  The Trustee may appoint an Authenticating Agent or Agents
which shall be authorized to act on behalf of the Trustee to authenticate
Securities issued upon original issue and upon exchange, registration of
transfer or partial redemption or pursuant to Section 306, and Securities so
authenticated and the Senior Guarantees endorsed thereon shall be entitled to
the benefits of this Indenture and shall be valid and obligatory for all
purposes as if authenticated by the Trustee hereunder. Wherever reference is
made in this Indenture to the authentication and delivery of Securities by the
Trustee or the Trustee's certificate of authentication, such reference shall be
deemed to include authentication and delivery on behalf of the Trustee by an
Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent.


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<PAGE>   61



Each Authenticating Agent shall be acceptable to the Company and shall at all
times be a corporation organized and doing business under the laws of the United
States of America, any State thereof or the District of Columbia having a
combined capital and surplus of not less than $50,000,000 or equivalent amount
expressed in a foreign currency and subject to supervision or examination by
Federal or State or District of Columbia authority or authority of such country.
If such Authenticating Agent publishes reports of condition at least annually,
pursuant to law or to the requirements of said supervising or examining
authority, then for the purposes of this Section, the combined capital and
surplus of such Authenticating Agent shall be deemed to be its combined capital
and surplus as set forth in its most recent report of condition so published. If
at any time an Authenticating Agent shall cease to be eligible in accordance
with the provisions of this Section, such Authenticating Agent shall resign
immediately in the manner and with the effect specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall mail written notice of
such appointment by first-class mail, postage prepaid, to all Holders as their
names and addresses appear in the Security Register. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder, with
like effect as if originally named as an Authenticating Agent. No successor
Authenticating Agent shall be appointed unless eligible under the provisions of
this Section.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

          If an appointment is made pursuant to this Section, the Securities may
have endorsed thereon, in addition to the Trustee's certificate of
authentication, an alternate certificate of authentication in the following
form:


                                       53

<PAGE>   62

          "This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.

                                          [TRUSTEE],
                                               as Trustee

                                           By
                                              --------------------------------,
                                                  as Authenticating Agent


                                           By 
                                              --------------------------------
                                                   Authorized Signatory."

          Notwithstanding any provision of this Section 614 to the contrary, if
at any time any Authenticating Agent appointed hereunder with respect to any
series of Securities shall not also be acting as the Security Registrar
hereunder with respect to any series of Securities, then, in addition to all
other duties of an Authenticating Agent hereunder, such Authenticating Agent
shall also be obligated: (i) to furnish to the Security Registrar promptly all
information necessary to enable the Security Registrar to maintain at all times
an accurate and current Security Register; and (ii) prior to authenticating any
Security denominated in a foreign currency, to ascertain from the Company the
units of such foreign currency that are required to be determined by the Company
pursuant to Section 302.

                                  ARTICLE SEVEN

                HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

          With respect to each series of Securities, the Company will furnish or
cause to be furnished to the Trustee:

          (a) semi-annually, not more than 15 days after each Regular Record
     Date relating to that series (or, if there is no Regular Record Date
     relating to that series, on January 1 and July 1), a list, in such form as
     the Trustee may reasonably require, of the names and addresses of the
     Holders of that series as of such dates, and

          (b) at such other times as the Trustee may request in writing, within
     30 days after the receipt by the Company of any such request, a list of
     similar form and content, such list to be dated as of a date not more than
     15 days prior to the time such list is furnished;


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<PAGE>   63


provided, that so long as the Trustee is the Security Registrar, the Company
shall not be required to furnish or cause to be furnished such a list to the
Trustee. The Company shall otherwise comply with Section 310(a) of the Trust
Indenture Act.

SECTION 702.  Preservation of Information; Communications to Holders.

          (a) The Trustee shall preserve, in as current a form as is reasonably
     practicable, the names and addresses of Holders of each series contained in
     the most recent list furnished to the Trustee as provided in Section 701
     and the names and addresses of Holders of each series received by the
     Trustee in its capacity as Security Registrar, if applicable. The Trustee
     may destroy any list furnished to it as provided in Section 701 upon
     receipt of a new list so furnished. The Trustee shall otherwise comply with
     Section 310(a) of the Trust Indenture Act.

          (b) Holders of Securities may communicate pursuant to Section 312(b)
     the Trust Indenture Act with other Holders with respect to their rights
     under this Indenture or under the Securities.

          (c) Every Holder of Securities, by receiving and holding the same,
     agrees with the Company and the Trustee that neither the Company nor the
     Trustee nor any agent of either of them shall be held accountable by reason
     of the disclosure of any such information as to the names and addresses of
     the Holders in accordance with Section 702(b), regardless of the source
     from which such information was derived, and that the Trustee shall not be
     held accountable by reason of mailing any material pursuant to a request
     made under Section 702(b). The Company, the Trustee, the Security Registrar
     and any other Person shall have the protection of Section 312(c) of the
     Trust Indenture Act.

SECTION 703.  Reports by Trustee.

          (a) Within 60 days after May 15 of each year after the execution of
     this Indenture, the Trustee shall transmit by mail to Holders a brief
     report dated as of such May 15 that complies with Section 313(a) of the
     Trust Indenture Act.

          (b) The Trustee shall comply with Section 313(b) of the Trust
     Indenture Act.

          (c) Reports pursuant to this Section shall be transmitted by mail as
     required by Sections 313(c) and 313(d) of the Trust Indenture Act:

               (1) to all Holders of Securities, as the names and addresses of
          such Holders appear in the Security Register;

               (2) to such Holders of Securities as have, within the two years
          preceding such transmissions, filed their names and addresses with the
          Trustee for that purpose; and


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<PAGE>   64


               (3) except in the case of reports pursuant to Subsection (b) of
          this Section, to each Holder of a Security whose name and address is
          preserved at the time by the Trustee, as provided in Section 702(a).

          (d) A copy of each report pursuant to Subsection (a) or (b) of this
     Section 703 shall, at the time of its transmission to Holders, be filed by
     the Trustee with each stock exchange upon which any Securities are listed,
     with the Commission and with the Company. The Company will notify the
     Trustee when any Securities are listed on any stock exchange.

SECTION 704.  Reports by Company and the Guarantors.

          The Company and each of the Guarantors shall file with the Trustee,
within 15 days after the Company is required to file the same with the
Commission, copies of the annual reports and of the information, documents and
other reports (or copies of such portions of any of the foregoing as the
Commission may from time to time by rules and regulations prescribe) which the
Company or any Guarantor may be required to file with the Commission pursuant to
Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended,
and shall otherwise comply with Section 314(a) of the Trust Indenture Act.

                                  ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, unless:

          (1) the Person formed by such consolidation or into which the Company
     is merged or the Person which acquires by conveyance or transfer, or which
     leases, the properties and assets of the Company substantially as an
     entirety shall be a corporation, partnership or trust and shall expressly
     assume, by an indenture supplemental hereto, executed and delivered to the
     Trustee, in form satisfactory to the Trustee, the due and punctual payment
     of the principal of (and premium, if any) and interest on and any
     Additional Amounts with respect to all the Securities and the performance
     of every covenant of this Indenture on the part of the Company to be
     performed or observed;

          (2) immediately after giving effect to such transaction, no Event of
     Default, and no event, act or condition which, after notice or lapse of
     time or both, would become an Event of Default, shall have happened and be
     continuing; and

          (3) the Company shall have delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that such
     consolidation, merger, conveyance, transfer or lease and, if a supplemental
     indenture is required in connection with such transaction, such


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<PAGE>   65


     supplemental indenture comply with this Article and that all conditions
     precedent herein provided for relating to such transaction have been
     complied with.

SECTION 802.  Successor Person Substituted.

          Upon any consolidation by the Company with or merger by the Company
into any other Person or any conveyance, transfer or lease of the properties and
assets of the Company substantially as an entirety in accordance with Section
801, the successor Person formed by such consolidation or into which the Company
is merged or to which such conveyance, transfer or lease is made shall succeed
to, and be substituted for, and may exercise every right and power of, the
Company under this Indenture with the same effect as if such successor Person
had been named as the Company herein, and thereafter, except in the case of such
lease, the predecessor Person shall be relieved of all obligations and covenants
under this Indenture and the Securities.

                                  ARTICLE NINE

                             SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders.

          Without the consent of any Holders, the Company and the Guarantors,
when authorized by a Board Resolution, and the Trustee, at any time and from
time to time, may enter into one or more indentures supplemental hereto, in form
satisfactory to the Trustee, for any of the following purposes:

          (1) to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company herein
     and in the Securities; or

          (2) to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to be
     for the benefit of less than all series of Securities, stating that such
     covenants are expressly being included solely for the benefit of such
     series), to convey, transfer, assign, mortgage or pledge any property to or
     with the Trustee or otherwise secure any series of the Securities or to
     surrender any right or power herein conferred upon the Company; or

          (3) to add any additional Events of Default with respect to all or any
     series of the Securities (and, if such Event of Default is applicable to
     less than all series of Securities, specifying the series to which such
     Event of Default is applicable); or

          (4) to change or eliminate any of the provisions of this Indenture,
     provided that any such change or elimination shall become effective only
     when there is no Security Outstanding of any series created prior to the
     execution of such supplemental indenture which is adversely affected by
     such change in or elimination of such provision; or


                                       57

<PAGE>   66


          (5) to establish the form or terms of Securities of any series as
     permitted by Sections 201 and 301; or

          (6) to supplement any of the provisions of this Indenture to such
     extent as shall be necessary to permit or facilitate the defeasance and
     discharge of any series of Securities pursuant to Section 401; provided,
     however, that any such action shall not adversely affect the interest of
     the Holders of Securities of such series or any other series of Securities
     in any material respect; or

          (7) to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this Indenture
     as shall be necessary to provide for or facilitate the administration of
     the trusts hereunder by more than one Trustee, pursuant to the requirements
     of Section 611(b); or

          (8) to cure any ambiguity, to correct or supplement any provision
     herein which may be defective or inconsistent with any other provision
     herein, or to make any other provisions with respect to matters or
     questions arising under this Indenture, provided such other provisions as
     may be made shall not adversely affect the interests of the Holders of
     Securities of any series in any material respect; or

          (9) to add new Guarantors pursuant to Article Fourteen.

SECTION 902.  Supplemental Indentures With Consent of Holders.

          With the consent of the Holders of a majority in principal amount of
the Outstanding Securities of all series affected by such supplemental indenture
(acting as one class), by Act of said Holders delivered to the Company and the
Trustee, the Company and the Guarantors, when authorized by a Board Resolution,
and the Trustee may enter into an indenture or indentures supplemental hereto
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or of modifying in any
manner the rights of the Holders of Securities of such series under this
Indenture; provided, however, that no such supplemental indenture shall, without
the consent of the Holder of each Outstanding Security affected thereby,

          (1) change the Stated Maturity of the principal of, or any installment
     of principal of or interest on, any Security, or reduce the principal
     amount thereof or the rate of interest thereon, any Additional Amounts with
     respect thereto or any premium payable upon the redemption thereof, or
     change any obligation of the Company to pay Additional Amounts (except as
     contemplated by Section 801(1) and permitted by Section 901(1)), or reduce
     the amount of the principal of an Original Issue Discount Security that
     would be due and payable upon a declaration of acceleration of the Maturity
     thereof pursuant to Section 502, or change any Place of Payment where, or
     the coin or currency or currencies (including composite currencies) in
     which, any Security or any premium or any interest thereon or Additional


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<PAGE>   67


     Amounts with respect thereto is payable, or impair the right to institute
     suit for the enforcement of any such payment on or after the Stated
     Maturity thereof (or, in the case of redemption, on or after the Redemption
     Date), or

          (2) reduce the percentage in principal amount of Outstanding
     Securities, the consent of whose Holders is required for any such
     supplemental indenture, or the consent of whose Holders is required for any
     waiver (of compliance with certain provisions of this Indenture or certain
     defaults hereunder and their consequences) provided for in this Indenture,
     or

          (3) modify any of the provisions of this Section, Section 512 or
     Section 1006, except to increase any such percentage or to provide with
     respect to any particular series the right to condition the effectiveness
     of any supplemental indenture as to that series on the consent of the
     Holders of a specified percentage of the aggregate principal amount of
     Outstanding Securities of such series (which provision may be made pursuant
     to Section 301 without the consent of any Holder) or to provide that
     certain other provisions of this Indenture cannot be modified or waived
     without the consent of the Holder of each Outstanding Security affected
     thereby, provided, however, that this clause shall not be deemed to require
     the consent of any Holder with respect to changes in the references to "the
     Trustee" and concomitant changes in this Section and Section 1006, or the
     deletion of this proviso, in accordance with the requirements of Sections
     611(b) and 901(7).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such covenant
or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

          It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

SECTION 903.  Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 601) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties, immunities or liabilities under this Indenture or
otherwise.


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<PAGE>   68


SECTION 904.  Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

SECTION 905.  Conformity With Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.  Reference in Securities to Supplemental Indentures.

          Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

                                   ARTICLE TEN

                                    COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of (and premium,
if any), interest on and any Additional Amounts with respect to the Securities
of that series in accordance with the terms of the Securities and this
Indenture.

SECTION 1002.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange and where notices and demands to or
upon the Company or any Guarantor in respect of the Securities or the Senior
Guarantees of that series and this Indenture may be served. The Company will
give prompt written notice to the Trustee of the location, and any change in the
location, of such office or agency. If at any time the Company shall fail to
maintain any such required office or agency or shall fail to furnish the Trustee
with the address thereof, such presentations, surrenders, notices and demands
may be made or served at the Corporate Trust Office of the Trustee.


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<PAGE>   69


          The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes and may from time to time rescind
such designations; provided, however, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in each Place of Payment for Securities of any series for such
purposes. The Company will give prompt written notice to the Trustee of any such
designation or rescission and of any change in the location of any such other
office or agency.

SECTION 1003.  Money for Securities Payments to be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on or any Additional Amounts with
respect to any of the Securities of that series, segregate and hold in trust for
the benefit of the Persons entitled thereto a sum sufficient to pay the
principal (and premium, if any) or interest or any Additional Amounts so
becoming due until such sums shall be paid to such Persons or otherwise disposed
of as herein provided and will promptly notify the Trustee of its action or
failure so to act.

          Whenever the Company shall have one or more Paying Agents for any
series of Securities, the Company will, on or before each due date of the
principal of (and premium, if any) or interest on any Securities of that series,
deposit with a Paying Agent a sum sufficient to pay the principal (and premium,
if any) or interest so becoming due, such sum to be held in trust for the
benefit of the Persons entitled to such principal, premium or interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

          The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will:

          (1) hold all sums held by it for the payment of the principal of (and
     premium, if any), interest on or any Additional Amounts with respect to
     Securities of that series in trust for the benefit of the Persons entitled
     thereto until such sums shall be paid to such Persons or otherwise disposed
     of as herein provided;

          (2) give the Trustee notice of any default by the Company (or any
     other obligor upon the Securities of that series) in the making of any
     payment of principal (and premium, if any), interest on or any Additional
     Amounts with respect to the Securities of that series; and

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


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

          Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on or any Additional Amounts with respect to any Security of
any series and remaining unclaimed for three years after such principal (and
premium, if any) or interest or Additional Amounts have become due and payable
shall, unless otherwise required by mandatory provisions of applicable escheat,
or abandoned or unclaimed property law, be paid to the Company on Company
Request, or (if then held by the Company) shall be discharged from such trust;
and the Holder of such Security shall thereafter, as an unsecured general
creditor, look only to the Company for payment thereof, and all liability of the
Trustee or such Paying Agent with respect to such trust money, and all liability
of the Company as trustee thereof, shall thereupon cease; provided, however,
that the Trustee or such Paying Agent, before being required to make any such
repayment, may at the expense of the Company cause to be published once, in an
Authorized Newspaper in The Borough of Manhattan, The City of New York and in
such other Authorized Newspapers as the Trustee shall deem appropriate, notice
that such money remains unclaimed and that, after a date specified therein,
which shall not be less than 30 days from the date of such publication, any
unclaimed balance of such money then remaining will, unless otherwise required
by mandatory provisions of applicable escheat, or abandoned or unclaimed
property law, be repaid to the Company.

SECTION 1004.  Existence.

          Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence.

SECTION 1005.  Statement by Officers as to Default.

          The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year of the Company ending after the date hereof so long as any
Security is outstanding hereunder, an Officers' Certificate complying with
Section 314(a) of the Trust Indenture Act, stating that a review of the
activities of the Company during such year and of performance under this
Indenture has been made under the supervision of the signers thereof and whether
or not to the best of their knowledge, based upon such review, the Company and
each Guarantor is not in default in the performance, observance or fulfillment
of any of their respective covenants and other obligations under this Indenture,
and if the Company or any Guarantor shall be in default, specifying each such
default known to them and the nature and status thereof. One of the officers
signing the Officers' Certificate delivered pursuant to this Section 1005 shall
be the principal executive, financial or accounting officer of the Company.


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          For purposes of this Section, such compliance shall be determined
without regard to any period of grace or requirement of notice provided under
this Indenture.

SECTION 1006.  Waiver of Certain Covenants.

          The Company or any Guarantor may omit in any particular instance to
comply with any covenant or condition set forth in Section 1004, or any covenant
added for the benefit of any series of Securities as contemplated by Section 301
(unless otherwise specified pursuant to Section 301) if before or after the time
for such compliance the Holders of a majority in principal amount of the
Outstanding Securities of all series affected by such omission (acting as one
class) shall, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such covenant or condition, but no
such waiver shall extend to or affect such covenant or condition except to the
extent so expressly waived, and, until such waiver shall become effective, the
obligations of the Company and each of the Guarantors and the duties of the
Trustee in respect of any such covenant or condition shall remain in full force
and effect.

SECTION 1007.  Additional Amounts.

          If the Securities of a series expressly provide for the payment of
Additional Amounts, the Company will pay to the Holder of any Security of such
series Additional Amounts as expressly provided therein. Whenever in this
Indenture there is mentioned, in any context, the payment of the principal of or
any premium or interest on, or in respect of, any Security of any series or the
net proceeds received from the sale or exchange of any Security of any series,
such mention shall be deemed to include mention of the payment of Additional
Amounts provided for in this Section to the extent that, in such context,
Additional Amounts are, were or would be payable in respect thereof pursuant to
the provisions of this Section and express mention of the payment of Additional
Amounts (if applicable) in any provisions hereof shall not be construed as
excluding Additional Amounts in those provisions hereof where such express
mention is not made.

          If the Securities of a series provide for the payment of Additional
Amounts, at least 10 days prior to the FIRST Interest Payment Date with respect
to that series of Securities (or if the Securities of that series will not bear
interest prior to Maturity, the first day on which a payment of principal and
any premium is made), and at least 10 days prior to each date of payment of
principal and any premium or interest if there has been any change with respect
to the matters set forth in the below-mentioned Officers' Certificate, the
Company shall furnish the Trustee and the Company's principal Paying Agent or
Paying Agents, if other than the Trustee, with an Officers' Certificate
instructing the Trustee and such Paying Agent or Paying Agents whether such
payment of principal of and any premium or interest on the Securities of that
series shall be made to Holders of Securities of that series who are United
States Aliens without withholding for or on account of any tax, assessment or
other governmental charge described in the Securities of that series. If any
such withholding shall be required, then such Officers' Certificate shall
specify by country the amount, if any, required to be withheld on such payments
to such Holders of Securities and the Company will pay to such Paying Agent the
Additional Amounts required by this Section. The Company covenants to indemnify
the Trustee and any Paying Agent for, and to hold them harmless against any


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loss, liability or expense reasonably incurred without negligence or bad faith
on their part arising out of or in connection with actions taken or omitted by
any of them in reliance on any Officers' Certificate furnished pursuant to this
Section 1007.

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

          Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any series)
in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

          Unless otherwise provided with respect to the Securities of a series
as contemplated by Section 301, the election of the Company to redeem any
Securities shall be evidenced by a Board Resolution. In case of any redemption
at the election of the Company of less than all the Securities of any series,
the Company shall, a reasonable period prior to the Redemption Date fixed by the
Company (unless a shorter notice shall be satisfactory to the Trustee), notify
the Trustee of such Redemption Date and of the principal amount of Securities of
such series to be redeemed. In the case of any redemption of Securities prior to
the expiration of any restriction on such redemption provided in the terms of
such Securities or elsewhere in this Indenture, the Company shall furnish the
Trustee with an Officers' Certificate evidencing compliance with such
restriction.

SECTION 1103.  Selection by Trustee of Securities to be Redeemed.

          If less than all the Securities of any series are to be redeemed, the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of portions (equal to the minimum authorized denomination for
Securities of that series or any integral multiple thereof) of the principal
amount of Securities of such series of a denomination larger than the minimum
authorized denomination for Securities of that series or of the principal amount
of global Securities of such series.

          The Trustee shall promptly notify the Company and the Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

          For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be


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redeemed only in part, to the portion of the principal amount of such Securities
which has been or is to be redeemed.

SECTION 1104.  Notice of Redemption.

          Notice of redemption shall be given in the manner provided in Section
107 to each Holder of Securities to be redeemed not less than 30 nor more than
60 days prior to the Redemption Date.

          All notices of redemption shall state:

          (1) the Redemption Date;

          (2) the Redemption Price;

          (3) if less than all the Outstanding Securities of any series are to
     be redeemed, the identification (and, in the case of partial redemption,
     the principal amounts) of the particular Securities to be redeemed;

          (4) that on the Redemption Date the Redemption Price will become due
     and payable upon each such Security to be redeemed and, if applicable, that
     interest thereon will cease to accrue on and after said date;

          (5) the place or places where such Securities are to be surrendered
     for payment of the Redemption Price;

          (6) that the redemption is for a sinking fund, if such is the case;
     and

          (7) the "CUSIP" number, if applicable.

          A notice of redemption as contemplated by Section 107 need not
identify particular Securities to be redeemed. Notice of redemption of
Securities to be redeemed at the election of the Company shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

          On or before [TIME], [CITY, STATE], time, on any Redemption Date, the
Company shall deposit with the Trustee or with a Paying Agent (or, if the
Company is acting as its own Paying Agent, segregate and hold in trust as
provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date)
accrued interest on, and any Additional Amounts with respect to, all the
Securities which are to be redeemed on that date.


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SECTION 1106.  Securities Payable on Redemption Date.

          Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption Price, together with accrued interest
(and any Additional Amounts) to the Redemption Date; provided, however, that
installments of interest whose Stated Maturity is on or prior to the Redemption
Date shall be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal (and premium, if any) shall,
until paid, bear interest from the Redemption Date at the rate prescribed
therefor in the Security or, in the case of Original Issue Discount Securities,
the Securities' Yield to Maturity.

SECTION 1107.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Company or the Trustee so requires,
due endorsement by, or a written instrument of transfer in form satisfactory to
the Company and the Trustee duly executed by, the Holder thereof or his attorney
duly authorized in writing), and the Company shall execute, and the Trustee
shall authenticate and deliver to the Holder of such Security without service
charge, a new Security or Securities (each with a Senior Guarantee of each
Guarantor executed by each such Guarantor and endorsed thereon) of the same
series and Stated Maturity, of any authorized denomination as requested by such
Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.

SECTION 1108.  Purchase of Securities.

          Unless otherwise specified as contemplated by Section 301, the Company
and any Affiliate of the Company may at any time purchase or otherwise acquire
Securities in the open market or by private agreement. Such acquisition shall
not operate as or be deemed for any purpose to be a redemption of the
indebtedness represented by such Securities. Any Securities purchased or
acquired by the Company may be delivered to the Trustee and, upon such delivery,
the indebtedness represented thereby shall be deemed to be satisfied. Section
309 shall apply to all Securities so delivered.


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                                 ARTICLE TWELVE

                                  SINKING FUNDS

SECTION 1201.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

          The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment," and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment." Unless otherwise provided by the terms of Securities of
any series, the cash amount of any sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

          The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption), and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of such series required to be made
pursuant to the terms of such Securities as provided for by the terms of such
series; provided that such Securities have not been previously so credited. Such
Securities shall be received and credited for such purpose by the Trustee at the
Redemption Price specified in such Securities for redemption through operation
of the sinking fund and the amount of such sinking payment shall be reduced
accordingly.

SECTION 1203.  Redemption of Securities for Sinking Fund.

          Not less than 45 days prior (unless a shorter period shall be
satisfactory to the Trustee) to each sinking fund payment date for any series of
Securities, the Company will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivery of or by crediting Securities of that series pursuant to
Section 1202 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 30 days before each such sinking fund payment date the
Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the
redemption thereof to be given in the name of and at the expense of the Company
in the manner provided in Section 1104. Such notice having


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been duly given, the redemption of such Securities shall be made upon the terms
and in the manner stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN

                        MEETINGS OF HOLDERS OF SECURITIES

SECTION 1301.  Purposes for Which Meetings May Be Called.

          A meeting of Holders of Securities of any or all series may be called
at any time and from time to time pursuant to this Article to make, give or take
any request, demand, authorization, direction, notice, consent, waiver or other
action provided by this Indenture to be made, given or taken by Holders of
Securities of such series.

SECTION 1302.  Call, Notice and Place of Meetings.

          (a) The Trustee may at any time call a meeting of Holders of
Securities of any series for any purpose specified in Section 1301, to be held
at such time and at such place in [CITY, STATE], or in any other location, as
the Trustee shall determine. Notice of every meeting of Holders of Securities of
any series, setting forth the time and the place of such meeting and in general
terms the action proposed to be taken at such meeting, shall be given, in the
manner provided in Section 107, not less than 20 nor more than 180 days prior to
the date fixed for the meeting.

          (b) In case at any time the Company, pursuant to a Board Resolution,
or the Holders of at least 10% in aggregate principal amount of the Outstanding
Securities of any series, shall have requested the Trustee for any such series
to call a meeting of the Holders of Securities of such series for any purpose
specified in Section 1301, by written request setting forth in reasonable detail
the action proposed to be taken at the meeting, and the Trustee shall not have
made the first publication of the notice of such meeting within 30 days after
receipt of such request or shall not thereafter proceed to cause the meeting to
be held as provided herein, then the Company or the Holders of Securities of
such series in the amount above specified, as the case may be, may determine the
time and the place in [CITY, STATE], for such meeting and may call such meeting
for such purposes by giving notice thereof as provided in Subsection (a) of this
Section.

SECTION 1303.  Persons Entitled to Vote at Meetings.

          To be entitled to vote at any meeting of Holders of Securities of any
series, a Person shall be (1) a Holder of one or more Outstanding Securities of
such series, or (2) a Person appointed by an instrument in writing as proxy for
a Holder or Holders of one or more Outstanding Securities of such series by such
Holder or Holders. The only Persons who shall be entitled to be present or to
speak at any meeting of Holders of Securities of any series shall be the Persons
entitled to vote at such meeting and their counsel, any representatives of the
Trustee and its counsel and any representatives of the Company and its counsel.


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SECTION 1304.  Quorum; Action.

          The Persons entitled to vote a majority in aggregate principal amount
of the Outstanding Securities of a series shall constitute a quorum for a
meeting of Holders of Securities of such series. In the absence of a quorum
within 30 minutes of the time appointed for any such meeting, the meeting shall,
if convened at the request of Holders of Securities of such series, be
dissolved. In any other case, the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting. In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting. Subject to Section 1305(d), notice of the
reconvening of any adjourned meeting shall be given as provided in Section
1302(a), except that such notice need be given only once not less than five days
prior to the date on which the meeting is scheduled to be reconvened. Notice of
the reconvening of an adjourned meeting shall state expressly that Persons
entitled to vote a majority in principal amount of the Outstanding Securities of
such series shall constitute a quorum.

          Except as limited by the first proviso to Section 902, any resolution
presented to a meeting or adjourned meeting duly reconvened at which a quorum is
present as aforesaid may be adopted by the affirmative vote of the Holders of a
majority in aggregate principal amount of the Outstanding Securities of that
series; provided, however, that, except as limited by the first proviso to
Section 902, any resolution with respect to any request, demand, authorization,
direction, notice, consent or waiver which this Indenture expressly provides may
be made, given or taken by the Holders of a specified percentage that is less
than a majority in aggregate principal amount of the Outstanding Securities of a
series may be adopted at a meeting or an adjourned meeting duly reconvened and
at which a quorum is present as aforesaid by the affirmative vote of the Holders
of such specified percentage in aggregate principal amount of the Outstanding
Securities of that series.

          Except as limited by the first proviso to Section 902, any resolution
passed or decision taken at any meeting of Holders of Securities of any series
duly held in accordance with this Section shall be binding on all the Holders of
Securities of such series, whether or not present or represented at the meeting.

SECTION 1305.  Determination of Voting Rights; Conduct and Adjournment of
               Meetings.

          (a) The holding of Securities shall be proved in the manner specified
     in Section 105 and the appointment of any proxy shall be proved in the
     manner specified in Section 105. Such regulations may provide that written
     instruments appointing proxies, regular on their face, may be presumed
     valid and genuine without the proof specified in Section 105 or other
     proof.

          (b) The Trustee shall, by an instrument in writing, appoint a
     temporary chairman of the meeting, unless the meeting shall have been
     called by the Company or by Holders of Securities as provided in Section
     1302(b), in which case the Company or the Holders of


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     Securities of the series calling the meeting, as the case may be, shall
     appoint a temporary chairman. A permanent chairman and a permanent
     secretary of the meeting shall be elected by vote of the Persons entitled
     to vote a majority in aggregate principal amount of the Outstanding
     Securities of such series represented at the meeting.

          (c) At any meeting each Holder of a Security of such series and each
     proxy shall be entitled to one vote for each $1,000 principal amount of the
     Outstanding Securities of such series held or represented by him; provided,
     however, that no vote shall be cast or counted at any meeting in respect of
     any Security challenged as not Outstanding and ruled by the chairman of the
     meeting to be not Outstanding. The chairman of the meeting shall have no
     right to vote, except as a Holder of a Security of such series or as a
     proxy.

          (d) Any meeting of Holders of Securities of any series duly called
     pursuant to Section 1302 at which a quorum is present may be adjourned from
     time to time by Persons entitled to vote a majority in aggregate principal
     amount of the Outstanding Securities of such series represented at the
     meeting; and the meeting may be held as so adjourned without further
     notice.

SECTION 1306.  Counting Votes and Recording Action of Meetings.

          The vote upon any resolution submitted to any meeting of Holders of
Securities of any series shall be by written ballots on which shall be
subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them. The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting. A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities of any
series shall be prepared by the secretary of the meeting and there shall be
attached to such record the original reports of the inspectors of votes on any
vote by ballot taken thereat and affidavits by one or more persons having
knowledge of the facts setting forth a copy of the notice of the meeting and
showing that such notice was given as provided in Section 1302 and, if
applicable, Section 1304. Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence
of the matters therein stated.


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                                ARTICLE FOURTEEN

                                SENIOR GUARANTEE

SECTION 1401.  Guarantee.

          Subject to this Article Fourteen, each of the Guarantors hereby,
jointly and severally, unconditionally guarantees, on a senior basis, to each
Holder of a Security authenticated and delivered by the Trustee and to the
Trustee and its successors and assigns, irrespective of the validity and
enforceability of this Indenture, the Securities or the obligations of the
Company hereunder or thereunder, that: (a) the principal of and interest on the
Securities will be promptly paid in full when due, whether at maturity, by
acceleration, redemption or otherwise, and interest on the overdue principal of
and interest on the Securities, if any, if lawful, and all other obligations of
the Company to the Holders or the Trustee hereunder or thereunder will be
promptly paid in full or performed, all in accordance with the terms hereof and
thereof; and (b) in case of any extension of time of payment or renewal of any
Securities or any of such other obligations, that same will be promptly paid in
full when due or performed in accordance with the terms of the extension or
renewal, whether at stated maturity, by acceleration or otherwise. Failing
payment when due of any amount so guaranteed or any performance so guaranteed
for whatever reason, the Guarantors shall be jointly and severally obligated to
pay the same immediately. Each Guarantor agrees that this is a guarantee of
payment and not a guarantee of collection.

          The Guarantors hereby agree that (subject to the provisions of Section
1402 hereof) their obligations hereunder shall be unconditional, irrespective of
the validity, regularity or enforceability of the Securities or this Indenture,
the absence of any action to enforce the same, any waiver or consent by any
Holder of the Securities with respect to any provisions hereof or thereof, the
recovery of any judgment against the Company, any action to enforce the same or
any other circumstance which might otherwise constitute a legal or equitable
discharge or defense of a Guarantor. Each Guarantor hereby waives diligence,
presentment, demand of payment, filing of claims with a court in the event of
insolvency or bankruptcy of the Company, any right to require a proceeding first
against the Company, protest, notice and all demands whatsoever and covenant
that this Senior Guarantee shall not be discharged except by complete
performance of the obligations contained in the Securities and this Indenture.

          If any Holder or the Trustee is required by any court or otherwise to
return to the Company, the Guarantors or any custodian, trustee, liquidator or
other similar official acting in relation to either the Company or the
Guarantors, any amount paid by either to the Trustee or such Holder, this Senior
Guarantee, to the extent theretofore discharged, shall be reinstated in full
force and effect.

          Each Guarantor agrees that it shall not be entitled to any right of
subrogation in relation to the Holders in respect of any obligations guaranteed
hereby until payment in full of all obligations guaranteed hereby. Each
Guarantor further agrees that, as between the Guarantors, on the one hand, and
the Holders and the Trustee, on the other hand, (x) the maturity of the
obligations


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<PAGE>   80



guaranteed hereby may be accelerated as provided in Article Five hereof for the
purposes of this Senior Guarantee, notwithstanding any stay, injunction or other
prohibition preventing such acceleration in respect of the obligations
guaranteed hereby, and (y) in the event of any declaration of acceleration of
such obligations as provided in Article Five hereof, such obligations (whether
or not due and payable) shall forthwith become due and payable by the Guarantors
for the purpose of this Senior Guarantee. The Guarantors shall have the right to
seek contribution from any non-paying Guarantor so long as the exercise of such
right does not impair the rights of the Holders under the Senior Guarantee.

SECTION 1402.  Limitation on Guarantor Liability.

          Each Guarantor, and by its acceptance of Securities, each Holder,
hereby confirms that it is the intention of all such parties that the Senior
Guarantee of such Guarantor not constitute a fraudulent transfer or conveyance
for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the
Uniform Fraudulent Transfer Act or any similar federal or state law to the
extent applicable to any Senior Guarantee. To effectuate the foregoing
intention, the Trustee, the Holders and the Guarantors hereby irrevocably agree
that the obligations of such Guarantor will, after giving effect to such maximum
amount and all other contingent and fixed liabilities of such Guarantor that are
relevant under such laws, and after giving effect to any collections from,
rights to receive contribution from or payments made by or on behalf of any
other Guarantor in respect of the obligations of such other Guarantor under this
Article Fourteen, result in the obligations of such Guarantor under its Senior
Guarantee not constituting a fraudulent transfer or conveyance.

SECTION 1403.  Execution and Delivery of Senior Guarantee.

          To evidence its Senior Guarantee set forth in Section 1401, each
Guarantor hereby agrees that a notation of such Senior Guarantee substantially
in the form set forth in Section 203 shall be endorsed by an Officer of such
Guarantor on each Security authenticated and delivered by the Trustee and that
this Indenture shall be executed on behalf of such Guarantor by its President or
one of its Vice Presidents.

          Each Guarantor hereby agrees that its Senior Guarantee set forth in
Section 1401 shall remain in full force and effect notwithstanding any failure
to endorse on each Security a notation of such Senior Guarantee.

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

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


                                       72

<PAGE>   81



SECTION 1404.  Releases Following Sale of Assets.

          In the event of a sale or other disposition of all of the assets of
any Guarantor, by way of merger, consolidation or otherwise, or a sale or other
disposition of all to the Capital Stock of any Guarantor, in each case to a
Person that is not (either before or after giving effect to such transactions) a
Subsidiary of the Company, then such Guarantor (in the event of a sale or other
disposition, by way of merger, consolidation or otherwise, of all of the capital
stock of such Guarantor) or the Person acquiring the property (in the event of a
sale or other disposition of all or substantially all of the assets of such
Guarantor) will be released and relieved of any obligations under this Indenture
and its Senior Guarantee, if immediately after giving effect to such sale, there
is no Default or Event of Default that has occurred and is continuing. If such
Guarantor is not released and relieved of its obligations under its Senior
Guarantee because a Default or Event of Default has occurred and is continuing
immediately after giving effect to such sale, such Guarantor will be released
and relieved of such obligations as soon thereafter as all Defaults and Events
of Default have been waived or cured. The Trustee shall execute any documents
reasonably required in order to evidence the release of any Guarantor, pursuant
to the provisions of this Section 1405, from its obligations under its Senior
Guarantee.

          Any Guarantor not released from its obligations under its Senior
Guarantee shall remain liable for the full amount of principal of and interest
on the Securities and for the other obligations of any Guarantor under this
Indenture as provided in this Article.

                                  *    *    *

          This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

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


                                            KEY ENERGY SERVICES, INC.


                                            By:
                                               --------------------------------
                                                  Name:
                                                  Title:

                                       73

<PAGE>   82

                                            [GUARANTORS]


                                            By:
                                               --------------------------------
                                                  Name:
                                                  Title:


                                            [TRUSTEE], Trustee



                                            By:
                                               --------------------------------
                                                  Name:
                                                  Title:


                                       74

<PAGE>   83


                                   SCHEDULE I

The following schedule lists each Guarantor under the Indenture as of the Issue
Date.

Yale E. Key, Inc., a Texas corporation; Key Energy Drilling, Inc., a Delaware
corporation; WellTech Eastern, Inc., a Delaware corporation; Odessa Exploration
Incorporated, a Delaware corporation; Kalkaska Oilfield Services, Inc., a
Michigan corporation; Well-Co Oil Services, Inc., a Nevada corporation; Patrick
Well Service, Inc., a Kansas corporation; Mosley Well Service, Inc., a Louisiana
corporation; Ram Oil Well Service, Inc., a New Mexico corporation; Rowland
Trucking Co., Inc., a New Mexico corporation; Landmark Fishing & Rental, Inc.,
an Oklahoma corporation; Dunbar Well Service, Inc., a Colorado corporation;
Frontier Well Service, Inc., a Wyoming corporation; Key Rocky Mountain, Inc., a
Delaware corporation; Key Four Corners, Inc., a Delaware corporation; Jeter
Service, Co., an Oklahoma corporation; Jeter Well Service, Inc., an Oklahoma
corporation; Jeter Transportation, Inc., an Oklahoma corporation; Industrial
Oilfield Supply, Inc., an Oklahoma corporation; Brooks Well Servicing, Inc., a
Delaware corporation; Updike Brothers, Inc., a Wyoming corporation; J.W. Gibson
Well Service Company, a Delaware corporation; Key Energy Services - South Texas,
Inc., a Delaware corporation; Key Energy Services - California, Inc., a Delaware
corporation; Watson Oilfiled Service & Supply, Inc., a Delaware corporation;
WellTech Mid-Continent, Inc., a Delaware corporation; Dawson Production
Management, Inc., a Delaware corporation; Dawson Production Taylor, Inc., a
Delaware corporation; Dawson Production Acquisition Corp., a Delaware
corporation; and Dawson Production Partners, L.P., a Delaware limited
partnership.



                                    Sch I - 1

<PAGE>   1
                                                                     EXHIBIT 4.4
================================================================================



                      KEY ENERGY SERVICES, INC., AS ISSUER

                                       AND

                   THE GUARANTORS NAMED HEREIN, AS GUARANTORS

                                       AND

                                   [TRUSTEE],

                                     TRUSTEE


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



                                    INDENTURE

                                   DATED AS OF

                          _______________________, 1999



                                 DEBT SECURITIES
                         (SUBORDINATED GUARANTEED DEBT)


================================================================================

<PAGE>   2



                            Key Energy Services, Inc.

           Reconciliation and tie between Trust Indenture Act of 1939
               and Indenture, dated as of _________________, 1999

                    ----------------------------------------
<TABLE>
<CAPTION>
Section of
Trust Indenture                                                 Section(s) of
Act of 1939                                                       Indenture
- -----------                                                     -------------
<S>                                                             <C>
Section 310  (a)(1).........................................    609
             (a)(2).........................................    609
             (a)(3).........................................    Not Applicable
             (a)(4).........................................    Not Applicable
             (b)............................................    608, 610
Section 311  (a)............................................    613
             (b)............................................    613
             (c)............................................    Not Applicable
Section 312  (a)............................................    701, 702(a)
             (b)............................................    702(b)
             (c)............................................    702(c)
Section 313  (a)............................................    703(a)
             (b)............................................    703(b)
             (c)............................................    703(c)
             (d)............................................    703(d)
Section 314  (a)............................................    704, 1005
             (b)............................................    Not Applicable
             (c)(1).........................................    103
             (c)(2).........................................    103
             (c)(3).........................................    Not Applicable
             (d)............................................    Not Applicable
             (e)............................................    103
Section 315  (a)............................................    601(a)
             (b)............................................    602
             (c)............................................    601(b)
             (d)............................................    601(c)
             (d)(1).........................................    601(a)(1)
             (d)(2).........................................    601(c)(2)
             (d)(3).........................................    601(c)(3)
             (e)............................................    513
Section 316  (a)(1)(A)......................................    502, 511
             (a)(1)(B)......................................    512
             (a)(2).........................................    Not Applicable
             (a)(last sentence).............................    101
             (b)............................................    508
Section 317  (a)(1).........................................    503
             (a)(2).........................................    504
             (b)............................................    1003
Section 318  (a)............................................    108
</TABLE>

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

Note: This reconciliation and tie shall not, for any purpose, be deemed to be a
      part of the Indenture.


<PAGE>   3



                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>

RECITALS OF THE COMPANY ......................................................1

                                   ARTICLE ONE
                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions ....................................................1
     Act .....................................................................2
     Additional Amounts ......................................................2
     Affiliate ...............................................................2
     Agent Members ...........................................................2
     Authenticating Agent ....................................................2
     Authorized Newspaper ....................................................2
     Board of Directors ......................................................3
     Board Resolution ........................................................3
     Business Day ............................................................3
     Capital Stock ...........................................................3
     Capitalized Lease Obligation ............................................3
     Commission ..............................................................3
     Company .................................................................3
     "Company Request" and "Company Order" ...................................3
     Conversion Event ........................................................3
     Corporate Trust Office ..................................................3
     Credit Agreement ........................................................3
     Defaulted Interest ......................................................4
     Depositary ..............................................................4
     Designated Senior Indebtedness ..........................................4
     Disqualified Capital Stock ..............................................4
     Dollar ..................................................................5
     Event of Default ........................................................5
     Exchange Rate ...........................................................5
     Guarantors ..............................................................5
     Holder ..................................................................5
     Indebtedness ............................................................5
     Indenture................................................................5
     Interest ................................................................5
     Interest Payment Date ...................................................5
     Interest Swap and Hedging Obligation ....................................5
     Judgment Currency .......................................................6
</TABLE>


                                        i

<PAGE>   4


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>


     Junior security .........................................................6
     Maturity ................................................................6
     Obligations .............................................................6
     Officers' Certificate ...................................................6
     Opinion of Counsel ......................................................6
     Original Issue Discount Security ........................................6
     Outstanding .............................................................6
     Paying Agent ............................................................7
     Payment Default .........................................................7
     Payment Notice ..........................................................7
     Person ..................................................................7
     Place of Payment ........................................................8
     Predecessor Security ....................................................8
     Qualified Capital Stock .................................................8
     Redemption Date .........................................................8
     Redemption Price ........................................................8
     Regular Record Date .....................................................8
     Required Currency .......................................................8
     Responsible Officer .....................................................8
     Securities ..............................................................8
     Security Custodian ......................................................8
     Security Register .......................................................9
     Senior Subordinated Guarantee ...........................................9
     Senior Indebtedness .....................................................9
     Special Record Date .....................................................9
     Stated Maturity .........................................................9
     Subsidiary ..............................................................9
     Trustee .................................................................9
     Trust Indenture Act ....................................................10
     United States ..........................................................10
     United States Alien ....................................................10
     U.S. Government Obligations ............................................10
     Vice President .........................................................10
     Wholly Owned Subsidiary ................................................10
     Yield to Maturity ......................................................10

SECTION 102.  Incorporation by Reference of Trust Indenture Act .............10
SECTION 103.  Compliance Certificates and Opinions ..........................11
SECTION 104.  Form of Documents Delivered to Trustee ........................11
SECTION 105.  Acts of Holders; Record Dates .................................12
SECTION 106.  Notices, Etc., to Trustee and Company .........................13
</TABLE>



                                       ii

<PAGE>   5


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
SECTION 107.  Notice to Holders; Waiver .....................................13
SECTION 108.  Conflict With Trust Indenture Act .............................14
SECTION 109.  Effect of Headings and Table of Contents ......................14
SECTION 110.  Successors and Assigns ........................................14
SECTION 111.  Separability Clause ...........................................14
SECTION 112.  Benefits of Indenture .........................................15
SECTION 113.  Governing Law .................................................15
SECTION 114.  Legal Holidays ................................................15
SECTION 115.  Corporate Obligation ..........................................15

                                   ARTICLE TWO
                                 SECURITY FORMS

SECTION 201.  Forms Generally ...............................................15
SECTION 202.  Form of Trustee's Certificate of Authentication ...............16
SECTION 203.  Form of Senior Subordinated Guarantee .........................16
SECTION 204.  Securities in Global Form .....................................19

                                  ARTICLE THREE
                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series ..........................22
SECTION 302.  Denominations .................................................25
SECTION 303.  Execution, Authentication Delivery and Dating .................25
SECTION 304.  Temporary Securities ..........................................27
SECTION 305.  Registration, Registration of Transfer and Exchange ...........27
SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities ..............28
SECTION 307.  Payment of Interest; Interest Rights Preserved ................29
SECTION 308.  Persons Deemed Owners .........................................30
SECTION 309.  Cancellation ..................................................31
SECTION 310.  Computation of Interest .......................................31
SECTION 311.  CUSIP Numbers .................................................31

                                  ARTICLE FOUR
                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture .......................31
SECTION 402.  Application of Trust Money ....................................33
SECTION 403.  Discharge of Liability on Securities of Any Series ............34
SECTION 404.  Applicability of Defeasance Provisions; Company's
                   Option to Effect Defeasance or Covenant Defeasance .......34
</TABLE>


                                      iii

<PAGE>   6


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
SECTION 405.  Defeasance and Discharge ......................................35
SECTION 406.  Covenant Defeasance ...........................................35
SECTION 407.  Conditions to Defeasance or Covenant Defeasance ...............36
SECTION 408.  Deposited Money and Government Obligations to be 
                   Held in Trust ............................................37
SECTION 409.  Repayment to Company ..........................................37
SECTION 410.  Indemnity for Government Obligations ..........................38
SECTION 411.  Reinstatement .................................................38

                                  ARTICLE FIVE
                                    REMEDIES

SECTION 501.  Events of Default .............................................38
SECTION 502.  Acceleration of Maturity; Rescission and Annulment ............40
SECTION 503.  Collection of Indebtedness and Suits for Enforcement 
                   by Trustee ...............................................41
SECTION 504.  Trustee May File Proofs of Claim ..............................42
SECTION 505.  Trustee May Enforce Claims Without Possession of 
                   Securities or Coupons ....................................43
SECTION 506.  Application of Money Collected ................................43
SECTION 507.  Limitation on Suits ...........................................44
SECTION 508.  Unconditional Right of Holders to Receive Principal
                   Premium and Interest .....................................45
SECTION 509.  Restoration of Rights and Remedies ............................45
SECTION 510.  Rights and Remedies Cumulative ................................45
SECTION 511.  Delay or Omission Not Waiver ..................................45
SECTION 512.  Control by Holders ............................................46
SECTION 513.  Waiver of Past Defaults .......................................46
SECTION 514.  Undertaking for Costs .........................................46
SECTION 515.  Waiver of Stay or Extension Laws ..............................47

                                   ARTICLE SIX
                                   THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities ...........................47
SECTION 602.  Notice of Defaults ............................................48
SECTION 603.  Certain Rights of Trustee .....................................49
SECTION 604.  Not Responsible for Recitals or Issuance of Securities ........50
SECTION 605.  May Hold Securities ...........................................50
SECTION 606.  Money Held in Trust ...........................................50
SECTION 607.  Compensation and Reimbursement ................................50
SECTION 608.  Disqualification; Conflicting Interests .......................51
SECTION 609.  Corporate Trustee Required; Eligibility .......................52
SECTION 610.  Resignation and Removal; Appointment of Successor .............52
</TABLE>


                                       iv

<PAGE>   7



<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
SECTION 611.  Acceptance of Appointment by Successor ........................53
SECTION 612.  Merger, Conversion, Consolidation or Succession to Business ...54
SECTION 613.  Preferential Collection of Claims Against Company .............55
SECTION 614.  Appointment of Authenticating Agent ...........................55

                                  ARTICLE SEVEN
                HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders .....57
SECTION 702.  Preservation of Information; Communications to Holders ........57
SECTION 703.  Reports by Trustee ............................................58
SECTION 704.  Reports by Company and the Guarantors .........................58

                                  ARTICLE EIGHT
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms ..........59
SECTION 802.  Successor Person Substituted ..................................59

                                  ARTICLE NINE
                             SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders ............60
SECTION 902.  Supplemental Indentures With Consent of Holders ...............61
SECTION 903.  Execution of Supplemental Indentures ..........................62
SECTION 904.  Effect of Supplemental Indenture ..............................62
SECTION 905.  Conformity With Trust Indenture Act ...........................63
SECTION 906.  Reference in Securities to Supplemental Indentures ............63

                                   ARTICLE TEN
                                    COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest ...................63
SECTION 1002.  Maintenance of Office or Agency ..............................63
SECTION 1003.  Money for Securities Payments to be Held in Trust ............64
SECTION 1004.  Existence ....................................................65
SECTION 1005.  Statement by Officers as to Default ..........................65
SECTION 1006.  Waiver of Certain Covenants ..................................65
SECTION 1007.  Additional Amounts ...........................................66
</TABLE>





::ODMA\PCDOCS\DOCS\247710\3
                                        v

<PAGE>   8


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
                                 ARTICLE ELEVEN
                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article .....................................67
SECTION 1102.  Election to Redeem; Notice to Trustee ........................67
SECTION 1103.  Selection by Trustee of Securities to be Redeemed ............67
SECTION 1104.  Notice of Redemption .........................................68
SECTION 1105.  Deposit of Redemption Price ..................................68
SECTION 1106.  Securities Payable on Redemption Date ........................68
SECTION 1107.  Securities Redeemed in Part ..................................69
SECTION 1108.  Purchase of Securities .......................................69

                                 ARTICLE TWELVE
                                  SINKING FUNDS

SECTION 1201.  Applicability of Article .....................................70
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities ........70
SECTION 1203.  Redemption of Securities for Sinking Fund ....................70

                                ARTICLE THIRTEEN
                                  SUBORDINATION

SECTION 1301.  Securities Subordinated to Senior Indebtedness ...............71
SECTION 1302.  No Payment on Securities in Certain Circumstances ............71
SECTION 1303.  Securities Subordinated to Prior Payment of
                     All Senior Indebtedness on Dissolution, 
                     Liquidation or Reorganization ..........................72
SECTION 1304.  Subrogation to Rights of Holders of Senior Indebtedness ......73
SECTION 1305.  Obligations of the Company and the Guarantors 
                     Unconditional ..........................................74
SECTION 1306.  Trustee Entitled to Assume Payments Not Prohibited
                      in Absence of Notice ..................................75
SECTION 1307.  Application by Trustee of Amounts Deposited with It ..........75
SECTION 1308.  Subordination Rights Not Impaired by Acts or
                      Omissions of the Company, the Guarantors or
                      Holders of Senior Indebtedness ....75
SECTION 1309.  Trustee to Effectuate Subordination of Securities ............76
SECTION 1310.  Right of Trustee to Hold Senior Indebtedness .................76
SECTION 1311.  Article Thirteen Not to Prevent Events of Default ............76
SECTION 1312.  No Fiduciary Duty of Trustee to Holders of
                      Senior Indebtedness ...................................77
SECTION 1313.  Article Applicable to Paying Agent ...........................77
</TABLE>



                                       vi

<PAGE>   9


<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>

                                ARTICLE FOURTEEN
                        MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called ....................77
SECTION 1402.  Call, Notice and Place of Meetings ...........................77
SECTION 1403.  Persons Entitled to Vote at Meetings .........................78
SECTION 1404.  Quorum; Action ...............................................78
SECTION 1405.  Determination of Voting Rights; Conduct and
                     Adjournment of Meetings ................................79
SECTION 1406.  Counting Votes and Recording Action of Meetings ..............79

                                 ARTICLE FIFTEEN
                          SENIOR SUBORDINATED GUARANTEE

SECTION 1501.  Guarantee ....................................................80
SECTION 1502.  Subordination of Senior Subordinated Guarantee ...............81
SECTION 1503.  Limitation on Guarantor Liability ............................81
SECTION 1504.  Execution and Delivery of Senior Subordinated Guarantee ......82
SECTION 1505.  Releases Following Sale of Assets ............................82
</TABLE>



                                       vii

<PAGE>   10



          INDENTURE, dated as of _______________, 1999 between KEY ENERGY
SERVICES, INC., a corporation duly organized and existing under the laws of the
State of Maryland (herein called the "Company"), having its principal office at
Two Tower Center, Tenth Floor, East Brunswick, New Jersey 08816, each of the
Guarantors (as hereinafter defined), and [TRUSTEE], a [national banking
association], as Trustee (herein called the "Trustee"), the office of the
Trustee at which at the date hereof its corporate trust business is principally
administered being [TRUSTEE'S ADDRESS].

                             RECITALS OF THE COMPANY

          The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its subordinated
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture provided.

          The Company, directly or indirectly, owns beneficially and of record
100% of the Capital Stock or other ownership interests, as the case may be, of
each Guarantor; the Company and Guarantors are members of the same consolidated
group of companies engaged in related business and the Guarantors will derive
direct and indirect economic benefit from the issuance of the Securities.

          This Indenture is subject to the provisions of the Trust Indenture Act
and the rules and regulations of the Commission promulgated thereunder that are
required to be part of this Indenture and, to the extent applicable, shall be
governed by such provisions.

          All things necessary to make this Indenture a valid agreement of the
Company and each of the Guarantors, in accordance with its terms, have been
done.

          NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of series
thereof, as follows:

                                   ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:


                                        1

<PAGE>   11



          (1) the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

          (2) all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with generally accepted accounting
     principles in the United States, and, except as otherwise herein expressly
     provided, the term "generally accepted accounting principles" with respect
     to any computation required or permitted hereunder shall mean such
     accounting principles as are generally accepted in the United States at the
     date of such computation; and

          (3) the words "herein", "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any particular
     Article, Section or other subdivision.

          Certain terms, used principally in Article Six, are defined in Section
102.

          "Act", when used with respect to any Holder, has the meaning specified
in Section 105.

          "Additional Amounts" means any additional amounts that are required by
the express terms of a Security or by or pursuant to a Board Resolution, under
circumstances specified therein or pursuant thereto, to be paid by the Company
with respect to certain taxes, assessments or other governmental charges imposed
on certain Holders and that are owing to such Holders.

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

          "Agent Members" has the meaning specified in Section 203.

          "Authenticating Agent" means any Person, which may include the
Company, authorized by the Trustee to act on behalf of the Trustee pursuant to
Section 614 to authenticate Securities of one or more series.

          "Authorized Newspaper" means a newspaper, in the English language or
in an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place. Where successive publications
are required to be made in Authorized Newspapers, the successive publications
may be made in the same or in different newspapers in the same city meeting the
foregoing requirements and in each case on any Business Day.


                                        2

<PAGE>   12


          "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

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

          "Business Day", when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking institutions in that Place of Payment are authorized or obligated by law
or executive order to close.

          "Capital Stock" means, with respect to any Person, any and all shares,
interests, rights to purchase (other than convertible or exchangeable
Indebtedness), warrants, options, participations or other equivalents of or
interests (however designated) in stock issued by that Person.

          "Capitalized Lease Obligation" means rental obligations under a lease
that are required to be capitalized for financial reporting purposes in
accordance with generally accepted accounting principles, and the amount of
Indebtedness represented by such obligations shall be the capitalized amount of
such obligations, as determined in accordance with generally accepted accounting
principles.

          "Commission" means the Securities and Exchange Commission, as from
time to time constituted, created under the Securities Exchange Act of 1934, as
amended, or, if at any time after the execution of this instrument such
Commission is not existing and performing the duties now assigned to it under
the Trust Indenture Act, then the body performing such duties at such time.

          "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

          "Company Request" and "Company Order" mean, respectively, a written
request or order signed in the name of the Company by its Chairman of the Board,
its President or a Vice President, and by its Treasurer, an Assistant Treasurer,
its Controller, an Assistant Controller, its Secretary or an Assistant
Secretary, and delivered to the Trustee.

          "Conversion Event" has the meaning specified in Section 501.

          "Corporate Trust Office" means the principal office of the Trustee in
[TRUSTEE'S CITY AND STATE] at which at any particular time its corporate trust
business shall be principally administered, which office at the date hereof is
that indicated in the introductory paragraph of this Indenture.

          "Credit Agreement" means that certain Second Amended and Restated
Credit Agreement, dated as of June 6, 1997, as amended and restated on September
14, 1998, as amended


                                        3

<PAGE>   13



on November 19, 1998, as subsequently amended as of December 29, 1998, by and
among the Company, PNC Bank, National Association, as administrative agent, the
other lenders, agents and arrangers named therein and the other parties thereto,
providing for up to $500 million of borrowings, including any related notes,
guarantees, collateral documents, instruments and agreements executed in
connection therewith, and in each case as amended, restated, supplemented,
modified, renewed, refunded, replaced or refinanced from time to time.

          "Defaulted Interest" has the meaning specified in Section 307.

          "Depositary" means, with respect to the Securities of any series
issuable or issued in whole or in part in global form, the Person designated as
Depositary by the Company pursuant to Section 301 with respect to the Securities
of such series until a successor Depositary shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Depositary" shall
mean or include each Person who is then a Depositary hereunder, and if at any
time there is more than one such Person, "Depositary" as used with respect to
the Securities of any series shall mean the Depositary with respect to the
Securities of that series.

          "Designated Senior Indebtedness," unless otherwise provided with
respect to the Securities of a series as contemplated by Section 301, means (i)
the Credit Agreement and (ii) any Senior Indebtedness that (a) in the instrument
evidencing the same or the assumption or guarantee thereof (or related documents
to which the Company is a party) is expressly designated as "Designated Senior
Indebtedness" for purposes of this Indenture and (b) satisfies such other
conditions as may be provided with respect to the Securities of such series;
provided that such instruments or documents may place limitations and conditions
on the right of such Senior Indebtedness to exercise the rights of Designated
Senior Indebtedness.

          "Disqualified Capital Stock" means, when used with respect to the
Securities of any series, (a) except as set forth in (b), with respect to any
Person, Capital Stock of such Person that, by its terms or by the terms of any
security into which it is convertible, exercisable or exchangeable, is, or upon
the happening of an event or the passage of time would be, required to be
redeemed or repurchased (including at the option of the holder thereof) by such
Person or any Subsidiary of such Person, in whole or in part, on or prior to the
final Stated Maturity of the Securities of such series, and (b) with respect to
any Subsidiary of such Person (including with respect to any Subsidiary of the
Company), any Capital Stock other than any common stock with no preference,
privileges, or redemption or repayment provisions. Notwithstanding the preceding
sentence, any Capital Stock that would constitute Disqualified Capital Stock
solely because the holders thereof have the right to require the Company to
repurchase such Capital Stock upon the occurrence of a change of control or an
asset sale shall not constitute Disqualified Capital Stock if the terms of such
Capital Stock provide that the Company may not repurchase or redeem any such
Capital Stock pursuant to such provisions unless such repurchase or redemption
complies with any provision hereof which requires the purchase, in whole or in
part, of the Securities upon the occurrence of such change of control or asset
sale.



                                        4

<PAGE>   14


          "Dollar" or "$" means a dollar or other equivalent unit in such coin
or currency of the United States as at the time shall be legal tender for the
payment of public and private debts.

          "Event of Default" has the meaning specified in Section 501.

          "Exchange Rate" has the meaning specified in Section 501.

          "Guarantors" means each of the Subsidiaries of the Company listed on
Schedule I attached hereto and by this reference made a part hereof.

          "Holder", when used with respect to any Security, means the Person in
whose name the Security is registered in the Security Register.

          "Indebtedness" of any Person, unless otherwise provided with respect
to the Securities of a series as contemplated by Section 301, means, without
duplication, the following (whether currently outstanding or hereafter incurred
or created): (i) all liabilities and obligations, contingent or otherwise, of
any such Person (a) in respect of borrowed money (whether the recourse of the
lender is to the whole of the assets of such Person or only to a portion
thereof), (b) evidenced by bonds, notes, debentures or similar instruments, (c)
representing the balance deferred and unpaid of the purchase price of any
property or services, except such as would constitute trade payables to trade
creditors in the ordinary course of business, (d) evidenced by bankers'
acceptances or similar instruments issued or accepted by banks, (e) for the
payment of money relating to a Capitalized Lease Obligation or (f) evidenced by
a letter of credit or a reimbursement obligation of such Person with respect to
any letter of credit; (ii) all net obligations of such Person under Interest
Swap and Hedging Obligations; and (iii) all liabilities of others of the kind
described in the preceding clause (i) or (ii) that such Person has guaranteed or
that is otherwise its legal liability and all obligations to purchase, redeem or
acquire any Capital Stock.

          "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

          "interest", when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

          "Interest Payment Date", when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

          "Interest Swap and Hedging Obligation" means any obligation of any
Person pursuant to any interest rate swap agreement, interest rate cap
agreement, interest rate collar agreement, interest rate exchange agreement,
currency exchange agreement or any other agreement or arrangement designed to
protect against fluctuations in commodity prices, interest rates or currency


                                        5

<PAGE>   15


values, including, without limitation, any arrangement whereby, directly or
indirectly, such Person is entitled to receive from time to time periodic
payments calculated by applying either a fixed or floating rate of interest on a
stated notional amount in exchange for periodic payments made by such Person
calculated by applying a fixed or floating rate of interest on the same notional
amount.

          "Judgment Currency" has the meaning specified in Section 506.

          "Junior security" of a Person means, when used with respect to the
Securities of any series, any Qualified Capital Stock of such Person and any
Indebtedness of such Person that is subordinated in right of payment to the
Securities of such series to at least the same extent as the Securities of such
series are subordinated to Senior Debt.

          "Maturity", when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

          "Obligations" means any principal, interest (including interest
accruing on or after the date a bankruptcy case is commenced by or against any
Person obligated therefor, whether a claim for post-petition interest is allowed
in such bankruptcy case), penalties, fees, indemnifications, reimbursements,
damages and other liabilities payable under the documentation governing any
Indebtedness.

          "Officers' Certificate" means a certificate signed by the Chairman of
the Board, the President or a Vice President, and by the Treasurer, the
Controller, the Secretary or an Assistant Treasurer, Assistant Controller or
Assistant Secretary, of the Company, and delivered to the Trustee, which
certificate shall comply with Section 103 hereof.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for or an employee of the Company, rendered, if applicable, in
accordance with Section 314(c) of the Trust Indenture Act, which opinion shall
comply with Section 103 hereof.

          "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

          "Outstanding", when used with respect to Securities of a series,
means, as of the date of determination, all Securities of such series
theretofore authenticated and delivered under this Indenture, except:

          (i) Securities theretofore cancelled by the Trustee or delivered to
     the Trustee for cancellation;


                                        6

<PAGE>   16


          (ii) Securities for whose payment or redemption money in the necessary
     amount has been theretofore irrevocably deposited with the Trustee or any
     Paying Agent (other than the Company) in trust or set aside and segregated
     in trust by the Company (if the Company shall act as its own Paying Agent)
     for the Holders of such Securities; provided that, if such Securities are
     to be redeemed, notice of such redemption has been duly given pursuant to
     this Indenture or provision therefor satisfactory to the Trustee has been
     made; and

          (iii) Securities which have been paid pursuant to Section 306 or in
     exchange for or in lieu of which other Securities have been authenticated
     and delivered pursuant to this Indenture, other than any such Securities in
     respect of which there shall have been presented to the Trustee proof
     satisfactory to it that such Securities are held by a bona fide purchaser
     in whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, or whether a
quorum is present at a meeting of Holders of Securities, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding for such purposes shall be the principal amount thereof that would
be due and payable as of the date of such determination if the Maturity thereof
were accelerated on such date pursuant to Section 502, (b) the principal amount
of a Security denominated in a foreign currency shall be the U.S. dollar
equivalent, determined by the Company on the date of original issuance of such
Security, of the principal amount (or, in the case of an Original Issue Discount
Security, the U.S. dollar equivalent, determined on the date of original
issuance of such Security, of the amount determined as provided in (a) above),
of such Security and (c) Securities owned by the Company or any other obligor
upon the Securities or any Affiliate of the Company or of such other obligor
shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent or waiver or upon any
such determination as to the presence of a quorum, only Securities which the
Trustee knows to be so owned shall be so disregarded. Securities so owned which
have been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.

          "Paying Agent" means any Person, which may include the Company,
authorized by the Company to pay the principal of (and premium, if any) or
interest on or Additional Amounts with respect to any one or more series of
Securities on behalf of the Company.

          "Payment Default" has the meaning specified in Section 1302(a).

          "Payment Notice" has the meaning specified in Section 1302(b).

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


                                        7

<PAGE>   17


          "Place of Payment", when used with respect to the Securities of any
series, means the place or places where the principal of (and premium, if any)
and interest on and any Additional Amounts with respect to the Securities of
that series are payable as specified in accordance with Section 301 subject to
the provisions of Section 1002.

          "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

          "Qualified Capital Stock" means any Capital Stock of the Company that
is not Disqualified Capital Stock.

          "Redemption Date", when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to the terms
of such Security and this Indenture.

          "Redemption Price", when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to the terms of
such Security and this Indenture.

          "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 301, or, if not so specified, the last day of the
calendar month preceding such Interest Payment Date if such Interest Payment
Date is the fifteenth day of the calendar month or the fifteenth day of the
calendar month preceding such Interest Payment Date if such Interest Payment
Date is the first day of a calendar month, whether or not such day shall be a
Business Day.

          "Required Currency" has the meaning specified in Section 506.

          "Responsible Officer", when used with respect to the Trustee, means
the Chairman or any Vice Chairman of the Board of Directors, the Chairman or any
Vice Chairman of the Executive Committee of the Board of Directors, the Chairman
of the Trust Committee, the President, any Vice President, the Secretary, any
Assistant Secretary, the Treasurer, any Assistant Treasurer, the Cashier, any
Assistant Cashier, any Trust Officer or Assistant Trust Officer, the Controller
or any Assistant Controller or any other officer of the Trustee customarily
performing functions similar to those performed by any of the above designated
officers and also means, with respect to a particular corporate trust matter,
any other officer to whom such matter is referred because of his knowledge of
and familiarity with the particular subject.

          "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

          "Security Custodian" means, with respect to Securities of a series
issued in global form, the Trustee for Securities of such series, acting in its
capacity as custodian with respect to the


                                        8

<PAGE>   18


Securities of such series, or any successor entity thereto, or any other Person
designated by such Trustee, or such seccessor entity, to act as custodian with
respect tothe Securities of such series.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

          "Senior Subordinated Guarantee" means the Guarantee by each Guarantor
of the Company's payment obligations under this Indenture and on the Securities,
executed pursuant to the provisions of this Indenture.

          "Senior Indebtedness" of any Person, unless otherwise provided with
respect to the Securities of a series as contemplated by Section 301, means (i)
all Indebtedness of such Person, whether currently outstanding or hereafter
issued, unless, by the terms of the instrument creating or evidencing such
Indebtedness, it is provided that such Indebtedness is not superior in right of
payment to the Securities or to other Indebtedness which is pari passu with or
subordinated to the Securities, (ii) all Hedging Obligations with respect to
items described in the preceding clause (i), (iii) all Obligations with respect
to the items described in the preceding clauses (i) and (ii), and (iv) any
modifications, refunding, deferrals, renewals or extensions of any such
Indebtedness or securities, notes or other evidences of Indebtedness issued in
exchange for such Indebtedness; provided that in no event shall "Senior
Indebtedness" include (a) Indebtedness of such Person owed or owing to any
Subsidiary of such Person, (b) any trade payable incurred by such Person for the
purchase of goods or materials or for services obtained in the ordinary course
of business or (c) any liability for federal, state, local or other taxes owed
or owing by such Person.

          "Special Record Date" for the payment of any Defaulted Interest on the
Securities of any series means a date fixed by the Trustee pursuant to Section
307.

          "Stated Maturity", when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.

          "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder, and
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.


                                        9

<PAGE>   19


          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed, except as provided
in Section 905.

          "United States" means the United States of America (including the
States and the District of Columbia) and its "possessions", which include Puerto
Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

          "United States Alien" means any Person who, for United States federal
income tax purposes, is a foreign corporation, a non-resident alien individual,
a non-resident alien or foreign fiduciary of an estate or trust, or a foreign
partnership.

          "U.S. Government Obligations" has the meaning specified in Section
401.

          "Vice President", when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president".

          "Wholly Owned Subsidiary" means a corporation all the outstanding
voting stock (other than any directors' qualifying shares) of which is owned,
directly or indirectly, by the Company or by one or more other Wholly Owned
Subsidiaries, or by the Company and one or more other Wholly Owned Subsidiaries.
For the purposes of this definition, "voting stock" means stock which ordinarily
has voting power for the election of directors, whether at all times or only so
long as no senior class of stock has such voting power by reason of any
contingency.

          "Yield to Maturity", when used with respect to any Original Issue
Discount Security, means the yield to maturity, if any, set forth on the face
thereof.

SECTION 102.  Incorporation by Reference of Trust Indenture Act.

          Whenever this Indenture refers to a provision of the Trust Indenture
Act, the provision is incorporated by reference in and made a part of this
Indenture. The following Trust Indenture Act terms used in this Indenture have
the following meanings:

          "Bankruptcy Act" means the Bankruptcy Act or Title 11 of the United
States Code.

          "indenture securities" means the Securities.

          "indenture security holder" means a Holder.

          "indenture to be qualified" means this Indenture.

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


                                       10

<PAGE>   20


          "obligor" on the indenture securities means the Company or any other
obligor on the Securities.

          All terms used in this Indenture that are defined by the Trust
Indenture Act, defined by Trust Indenture Act reference to another statute or
defined by Commission rule under the Trust Indenture Act and not otherwise
defined herein have the meanings assigned to them therein.

SECTION 103.  Compliance Certificates and Opinions.

          Except as otherwise expressly provided by this Indenture, upon any
application or request by the Company to the Trustee to take any action under
any provision of this Indenture, the Company shall furnish to the Trustee an
Officers' Certificate stating that all conditions precedent, if any (including
any covenants the compliance with which constitutes a condition precedent,
provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent, if any (including any covenants the
compliance with which constitutes a condition precedent) have been complied
with, except that in the case of any such application or request as to which the
furnishing of such documents is specifically required by any provision of this
Indenture relating to such particular application or request, no additional
certificate or opinion need be furnished.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

          (1) a statement that each Person signing such certificate or opinion
     has read such covenant or condition and the definitions herein relating
     thereto;

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

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

          (4) a statement as to whether, in the opinion of each such Person,
     such condition or covenant has been complied with.

SECTION 104.  Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one


                                       11

<PAGE>   21


or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 105.  Acts of Holders; Record Dates.

          (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing. Except as herein otherwise expressly provided, such action
shall become effective when such instrument or instruments or record thereof or
both are delivered to the Trustee and, where it is hereby expressly required, to
the Company. Such instrument or instruments and any such record (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments and so voting at any
such meeting. Proof of execution of any such instrument or of a writing
appointing any such agent, or the holding of any Person of a Security, shall be
sufficient for any purpose of this Indenture and (subject to Section 601)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section. The record of any meeting of Holders of Securities
shall be proved in the manner provided in Section 1406.

          The Company may set in advance a record date for purposes of
determining the identity of Holders of Securities entitled to vote or consent to
any action by vote or consent authorized or permitted under this Indenture. If a
record date is fixed, those Persons who were Holders of Outstanding Securities
at such record date (or their duly designated proxies), and only those Persons,
shall be entitled with respect to such Securities to take such action by vote or
consent or to revoke any vote or consent previously given, whether or not such
Persons continue to be Holders after such record date. Promptly after any record
date is set pursuant to this paragraph, the Company, at its own expense, shall
cause notice thereof to be given to the Trustee in writing in the manner
provided in Section 106 and to the relevant Holders as set forth in Section 107.


                                       12

<PAGE>   22


          (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          (c) The principal amount and serial numbers of Securities held by any
Person, and the date of holding the same, shall be proved by the Security
Register.

          (d) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Security. Any Holder or subsequent Holder may revoke the request, demand,
authorization, direction, notice, consent or other Act as to his Security or
portion of his Security; provided, however, that such revocation shall be
effective only if the Trustee receives the notice of revocation before the date
the Act becomes effective.

SECTION 106.  Notices, Etc., to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

          (1) the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at its Corporate Trust Office, Attention: Corporate
     Trust Administration, or

          (2) the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided) if
     in writing and mailed, first-class postage prepaid, to the Company
     addressed to it at the address of its principal office specified in the
     first paragraph of this Indenture or at any other address previously
     furnished in writing to the Trustee by the Company, Attention: Corporate
     Secretary.

SECTION 107.  Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of Securities of
any event, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, to
each Holder affected by such event, at the address of such


                                       13

<PAGE>   23


Holder as it appears in the Security Register, not later than the latest date,
and not earlier than the earliest date, prescribed for the giving of such
notice.

          In case by reason of the suspension of regular mail service, or by
reason of any other cause it shall be impracticable to give such notice to
Holders of Securities by mail, then such notification as shall be made with the
approval of the Trustee shall constitute a sufficient notification for every
purpose hereunder. In any case in which notice to Holders of Securities is given
by mail, neither the failure to mail such notice, nor any defect in any notice
so mailed, to any particular Holder of a Security, shall affect the sufficiency
of such notice with respect to other Holders of Securities.

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

SECTION 108.  Conflict With Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with any
provision of the Trust Indenture Act or another provision hereof which is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such provision of the Trust Indenture Act or such other provision
hereof which is required to be included by any provision of the Trust Indenture
Act shall control. If any provision of this Indenture modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
former provision shall be deemed to apply to this Indenture as so modified or to
be excluded.

SECTION 109.  Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 110.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.

SECTION 111.  Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.


                                       14

<PAGE>   24



SECTION 112.  Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, any Authenticating Agent, Paying Agent, Security Registrar, Security
Custodian, the Holders and holders of any Senior Indebtedness, any benefit or
any legal or equitable right, remedy or claim under this Indenture.

SECTION 113.  Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the laws of the State of New York, but without giving effect
to applicable principles of conflicts of law to the extent the application of
the laws of another jurisdiction would be required thereby.

SECTION 114.  Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture, the Securities or
the Senior Subordinated Guarantees) payment of principal and interest (and
premium and Additional Amounts, if any) need not be made at such Place of
Payment on such date, but may be made on the next succeeding Business Day at
such Place of Payment with the same force and effect as if made on the Interest
Payment Date or Redemption Date, or at the Stated Maturity, provided that no
interest shall accrue with respect to such payment for the period from and after
such Interest Payment Date, Redemption Date or Stated Maturity, as the case may
be.

SECTION 115.  Corporate Obligation.

          No recourse may be taken, directly or indirectly, against any
incorporator, subscriber to the capital stock, stockholder, officer, director or
employee of the Company, the Guarantors, or the Trustee or of any predecessor or
successor of the Company, the Guarantors, or the Trustee with respect to the
Company's obligations on the Securities, the obligations of the Guarantors on
the Senior Subordinated Guarantees, or the obligations of the Company, the
Guarantors, or the Trustee under this Indenture or any certificate or other
writing delivered in connection herewith.

                                   ARTICLE TWO

                                 SECURITY FORMS

SECTION 201.  Forms Generally.

          The Securities and the Senior Subordinated Guarantees to be endorsed
thereon of each series shall be in fully registered form and in substantially
such form or forms (including temporary or permanent global form) as shall be
established by or pursuant to a Board Resolution or in one or more indentures
supplemental hereto, in each case with such appropriate insertions,


                                       15

<PAGE>   25



omissions, substitutions and other variations as are required or permitted by
this Indenture and may have such letters, numbers or other marks of
identification and such legends or endorsements placed thereon as may be
required to comply with the rules of any securities exchange or as may,
consistently herewith, be determined by the officers executing such Securities
or Senior Subordinated Guarantees to be endorsed thereon, as the case may be, as
evidenced by their execution of the Securities or Senior Subordinated Guarantees
to be endorsed thereon, as the case may be. If temporary Securities and Senior
Subordinated Guarantees of any series are issued in global form as permitted by
Section 304, the form thereof shall be established as provided in the preceding
sentence. A copy of the Board Resolution establishing the form or forms of
Securities and Senior Subordinated Guarantees of any series (or any such
temporary global Security) shall be certified by the Secretary or an Assistant
Secretary of the Company and delivered to the Trustee at or prior to the
delivery of the Company Order contemplated by Section 303 for the authentication
and delivery of such Securities (or any such temporary global Security).

          The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution thereof.

SECTION 202.  Form of Trustee's Certificate of Authentication.

          The Trustee's certificate of authentication shall be in substantially
the following form:

          "This is one of the Securities with Senior Subordinated Guarantees of
the series designated therein referred to in the within-mentioned Indenture.

                                      [                                  ],
                                       ---------------------------------
                                         as Trustee
                                        By
                                           ---------------------------------
                                                 Authorized Signatory."

SECTION 203.  Form of Senior Subordinated Guarantee.

                         "SENIOR SUBORDINATED GUARANTEE

          For value received, each of the Guarantors named (or deemed herein to
be named) below hereby jointly and severally unconditionally guarantees, on a
senior subordinated basis to the Holder of the Security upon which this Senior
Subordinated Guarantee is endorsed, and to the Trustee on behalf of such Holder,
the due and punctual payment of the principal of (and premium, if any) and
interest on such Security when and as the same shall become due and payable,
whether at the Stated Maturity, by acceleration, call for redemption, purchase
or otherwise, according to the terms thereof and of the Indenture referred to
therein. In case of the failure of the Company punctually to make any such
payment, each of the Guarantors hereby jointly and severally agrees to cause
such payment to be made punctually when and as the same shall become due and
payable,


                                       16

<PAGE>   26



whether at the Stated Maturity or by acceleration, call for redemption, purchase
or otherwise, and as if such payment were made by the Company.

          The Senior Subordinated Guarantee of each Guarantor shall be
subordinated in right of payment to the Senior Indebtedness of such Guarantor as
provided in the Indenture.

          Each of the Guarantors hereby jointly and severally agrees that its
obligations hereunder shall be unconditional, irrespective of the validity,
regularity or enforceability of such Security or the Indenture, the absence of
any action to enforce the same, any creation, exchange, release or
non-perfection of any Lien on any collateral for, or any release or amendment or
waiver of any term of any other guarantee of, or any consent to departure from
any requirement of any other guarantee of, all or of any of the Securities, the
election by the Trustee or any of the Holders in any proceeding under Chapter 11
of the Bankruptcy Code of the application of Section 1111(b)(2) of the
Bankruptcy Code, any borrowing or grant of a security interest by the Company,
as debtor-in- possession, under Section 364 of the Bankruptcy Code, the
disallowance, under Section 502 of the Bankruptcy Code, of all or any portion of
the claims of the Trustee or any of the Holders for payment of any of the
Securities, any waiver or consent by the Holder of such Security or by the
Trustee or either of them with respect to any provisions thereof or of the
Indenture, the obtaining of any judgment against the Company or any action to
enforce the same or any other circumstances which might otherwise constitute a
legal or equitable discharge or defense of a Guarantor. Each of the Guarantors
hereby waives the benefits of diligence, presentment, demand of payment, any
requirement that the Trustee or any of the Holders protect, secure, perfect or
insure any security interest in or other Lien on any property subject thereto or
exhaust any right or take any action against the Company or any other Person or
any collateral, filing of claims with a court in the event of insolvency or
bankruptcy of the Company, any right to require a proceeding first against the
Company, protest or notice with respect to such Security or the indebtedness
evidenced thereby and all demands whatsoever, and covenants that this Senior
Subordinated Guarantee will not be discharged except by complete performance of
the obligations contained in such Security and in this Senior Subordinated
Guarantee. Each of the Guarantors hereby agrees that, in the event of a default
in payment of principal (or premium, if any) or interest on such Security,
whether at their Stated Maturity, by acceleration, call for redemption, purchase
or otherwise, legal proceedings may be instituted by the Trustee on behalf of,
or by, the Holder of such Security, subject to the terms and conditions set
forth in the Indenture, directly against each of the Guarantors to enforce this
Senior Subordinated Guarantee without first proceeding against the Company. Each
Guarantor agrees that if, after the occurrence and during the continuance of an
Event of Default, the Trustee or any of the Holders are prevented by applicable
law from exercising their respective rights to accelerate the maturity of the
Securities, to collect interest on the Securities, or to enforce or exercise any
other right or remedy with respect to the Securities, such Guarantor agrees to
pay to the Trustee for the accounts of the Holders, upon demand therefor, the
amount that would otherwise have been due and payable had such rights and
remedies been permitted to be exercised by the Trustee or any of the Holders.

          No reference herein to the Indenture and no provision of this Senior
Subordinated Guarantee or of the Indenture shall alter or impair the Senior
Subordinated Guarantee of any


                                       17

<PAGE>   27


Guarantor, which is absolute and unconditional, of the due and punctual payment
of the principal (and premium, if any) and interest on the Security upon which
this Senior Subordinated Guarantee is endorsed.

          Each Guarantor shall be subrogated to all rights of the Holder of such
Security against the Company in respect of any amounts paid by such Guarantor on
account of such Security pursuant to the provisions of its Senior Subordinated
Guarantee or the Indenture; provided, however, that such Guarantor shall not be
entitled to enforce or to receive any payments arising out of, or based upon,
such right of subrogation until the principal of (and premium, if any) and
interest on this Security and all other Securities issued under the Indenture
shall have been paid in full.

          This Senior Subordinated Guarantee shall remain in full force and
effect and continue to be effective should any petition be filed by or against
the Company for liquidation or reorganization, should the Company become
insolvent or make any assignment for the benefit of creditors or should a
receiver or trustee be appointed for all or any significant part of the
Company's assets, and shall, to the fullest extent permitted by law, continue to
be effective or be reinstated, as the case may be, if at any time payment and
performance of the Securities is, pursuant to applicable law, rescinded or
reduced in amount, or must otherwise be restored or returned by any obligee on
the Securities, whether as a "voidable preference," "fraudulent transfer" or
otherwise, all as though such payment or performance had not been made. In the
event that any payment, or any part thereof, is rescinded, reduced, restored or
returned, the Securities shall, to the fullest extent permitted by law, be
reinstated and deemed reduced only by such amount paid and not so rescinded,
reduced, restored or returned.

          The Guarantors shall have the right to seek contribution from any
non-paying Guarantor so long as the exercise of such right does not impair the
rights of the Holders under this Senior Subordinated Guarantee.

          The Guarantors or any particular Guarantor shall be released from this
Senior Subordinated Guarantee upon the terms and subject to certain conditions
provided in the Indenture.

          By delivery of a supplemental indenture to the Trustee in accordance
with the terms of the Indenture, each Person that becomes a Guarantor after the
date of the Indenture will be deemed to have executed and delivered this Senior
Subordinated Guarantee for the benefit of the Holder of the Security upon which
this Senior Subordinated Guarantee is endorsed, with the same effect as if such
Guarantor were named below and had executed and delivered this Senior
Subordinated Guarantee.

          All terms used in this Senior Subordinated Guarantee which are defined
in the Indenture referred to in the Security upon which this Senior Subordinated
Guarantee is endorsed shall have the meanings assigned to them in such
Indenture.


                                       18

<PAGE>   28



          This Senior Subordinated Guarantee shall not be valid or obligatory
for any purpose until the certificate of authentication on the Security upon
which this Senior Subordinated Guarantee is endorsed shall have been executed by
the Trustee under the Indenture by manual signature.

          Reference is made to Article Fourteen of the Indenture for further
provisions with respect to this Senior Subordinated Guarantee.

          THIS SENIOR SUBORDINATED GUARANTEE SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

          IN WITNESS WHEREOF, each of the Guarantors has caused this Senior
Subordinated Guarantee to be duly executed.


                              Each of the Guarantors Listed on Schedule I to the
                              Indenture, as Guarantor

                              By:                                             "
                                 ---------------------------------------------

SECTION 204.  Securities in Global Form.

          If Securities of a series are issuable in global form, as contemplated
by Section 301, then, notwithstanding clause (10) of Section 301 and the
provisions of Section 302, any such Security shall represent such of the
Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time to time endorsed thereon and that the aggregate amount of Outstanding
Securities represented thereby may from time to time be reduced to reflect
exchanges. Any endorsement of a Security in global form to reflect the amount,
or any increase or decrease in the amount, of Outstanding Securities represented
thereby shall be made by the Trustee in such manner and upon instructions given
by such Person or Persons as shall be specified in such Security or in a Company
Order to be delivered to the Trustee pursuant to Section 303 or Section 304.
Subject to the provisions of Section 303 and, if applicable, Section 304, the
Trustee shall deliver and redeliver any Security in permanent global form in the
manner and upon instructions given by the Person or Persons specified in such
Security or in the applicable Company Order. With respect to the Securities of
any series that are represented by a Security in global form, the Company
authorizes the execution and delivery by the Trustee of a letter of
representations or other similar agreement or instrument in the form customarily
provided for by the Depositary appointed with respect to such global Security.
Any Security in global form may be deposited with the Depositary or its nominee,
or may remain in the custody of the Security Custodian therefor pursuant to a
FAST Balance Certificate Agreement or similar agreement between the Trustee and
the Depositary. If a Company Order pursuant to Section 303 or 304 has been, or
simultaneously is, delivered, any instructions by the Company with respect to
endorsement or delivery or redelivery of a Security in global form shall be in
writing but need not comply with Section 103 and need not be accompanied by an
Opinion of Counsel.


                                       19

<PAGE>   29


          Members of, or participants in, the Depositary ("Agent Members") shall
have no rights under this Indenture with respect to any Security issued in
global form held on their behalf by the Depositary, or the Security Custodian as
its custodian, or under such global Security, and the Depositary may be treated
by the Company, the Security Custodian and any agent of the Company or the
Trustee as the absolute owner of such global Security for all purposes
whatsoever. Notwithstanding the foregoing, (i) the registered holder of a
Security of any series issued in global form may grant proxies and otherwise
authorize any Person, including Agent Members and Persons that may hold
interests through Agent Members, to take any action that a Holder of such series
is entitled to take under this Indenture or the Securities of such series and
(ii) nothing herein shall prevent the Company, the Security Custodian or any
agent of the Company or the Security Custodian, from giving effect to any
written certification, proxy or other authorization furnished by the Depositary
or shall impair, as between the Depositary and its Agent Members, the operation
of customary practices governing the exercise of the rights of a beneficial
owner of any Security.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be exchangeable
only as provided in this paragraph. If the beneficial owners of interests in a
permanent global Security are entitled to exchange such interest for Securities
of such series and of like tenor and principal amount of another authorized form
and denomination, as specified as contemplated by Section 301, then without
unnecessary delay but in any event not later than the earliest date on which
such interests may be so exchanged, the Company shall deliver to the Trustee
definitive Securities of that series in an aggregate principal amount equal to
the principal amount of such permanent global Security, executed by the Company.
On or after the earliest date on which such interests may be so exchanged, such
permanent global Security shall be surrendered from time to time in accordance
with instructions given to the Trustee and the Depositary (which instructions
shall be in writing but need not comply with Section 103 or be accompanied by an
Opinion of Counsel) by the Depositary or such other depositary as shall be
specified in the Company Order with respect thereto to the Trustee, as the
Company's agent for such purpose, to be exchanged, in whole or in part, for
definitive Securities of the same series without charge and the Trustee shall
authenticate and deliver, in exchange for each portion of such permanent global
Security, a like aggregate principal amount of other definitive Securities of
the same series of authorized denominations and of like tenor as the portion of
such permanent global Security to be exchanged; provided, however, that no such
exchanges may occur during a period beginning at the opening of business 15 days
before any selection of Securities of that series is to be redeemed and ending
on the relevant Redemption Date. Promptly following any such exchange in part,
such permanent global Security marked to evidence the partial exchange shall be
returned by the Trustee to the Depositary or such other depositary referred to
above in accordance with the instructions of the Company referred to above. If a
definitive Security is issued in exchange for any portion of a permanent global
Security after the close of business at the office or agency where such exchange
occurs on (i) any Regular Record Date and before the opening of business at such
office or agency on the relevant Interest Payment Date, or (ii) any Special
Record Date and before the opening of business at such office or agency on the
related proposed date for payment of Defaulted Interest, interest or Defaulted
Interest, as the case may be, will not be payable on such Interest Payment Date
or proposed date for payment, as the case may be, in respect of such Security,
but will be payable on such Interest Payment Date or proposed


                                       20

<PAGE>   30


for payment, as the case may be, only to the Person to whom interest in respect
of such portion of such permanent global Security is payable in accordance with
the provisions of this Indenture.

          Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, transfers of a Security issued in global form shall
be limited to transfers of such global Security in whole, but not in part, to
the Depositary, its successors or their respective nominees. Interests of
beneficial owners in a Security issued in global form may be transferred in
accordance with the rules and procedures of the Depositary. Securities of any
series shall be transferred to all beneficial owners of a global Security of
such series in exchange for their beneficial interests in that global Security
if, and only if, either (1) the Depositary notifies the Company that it is
unwilling or unable to continue as Depositary for the global Security of such
series and a successor Depositary is not appointed by the Company within 90 days
of such notice, (2) an Event of Default has occurred with respect to such series
and is continuing and the Security Registrar has received a request from the
Depositary or the Trustee to issue Securities of such series in lieu of all or a
portion of that global Security (in which case the Company shall deliver
Securities of such series within 30 days of such request) or (3) the Company
determines not to have the Securities of such series represented by a global
Security.

          In connection with any transfer of a portion of the beneficial
interest in a global Security of any series to beneficial owners pursuant to
this Section 203, the Security Registrar shall reflect on its books and records
the date and a decrease in the principal amount of the global Security of that
series in an amount equal to the principal amount of the beneficial interest in
the global Security of that series to be transferred, and the Company shall
execute, and the Trustee upon receipt of a Company Order for the authentication
and delivery of Securities of that series shall authenticate and deliver, one or
more Securities of the same series of like tenor and amount.

          In connection with the transfer of all the beneficial interests in a
global Security of any series to beneficial owners pursuant to this Section 203,
the global Security shall be deemed to be surrendered to the Trustee for
cancellation, and the Company shall execute, and the Trustee shall authenticate
and deliver, to each beneficial owner identified by the Depositary in exchange
for its beneficial interest in the global Security, an equal aggregate principal
amount of Securities of that series of authorized denominations.

          Neither the Company nor the Trustee will have any responsibility or
liability for any aspect of the records relating to, or payments made on account
of, Securities of any series by the Depositary, or for maintaining, supervising
or reviewing any records of the Depositary relating to such Securities. Neither
the Company nor the Trustee shall be liable for any delay by the related global
Security Holder or the Depositary in identifying the beneficial owners, and each
such Person may conclusively rely on, and shall be protected in relying on,
instructions from such global Security Holder or the Depositary for all purposes
(including with respect to the registration and delivery, and the respective
principal amounts, of the Securities to be issued).

          The provisions of the last sentence of Section 303 shall apply to any
Security in global form if such Security was never issued and sold by the
Company and the Company delivers


                                       21

<PAGE>   31


to the Trustee the Security in global form together with written instructions
(which need not comply with Section 103 and need not be accompanied by an
Opinion of Counsel) with regard to the reduction in the principal amount of
Securities represented thereby, together with the written statement contemplated
by the last sentence of Section 303.

          Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of (and
premium, if any) and interest on and any Additional Amounts with respect to any
Security in permanent global form shall be made to the Person or Persons
specified therein.

          Notwithstanding the provisions of Section 308 and except as provided
in the preceding paragraph, the Company, the Trustee and any agent of the
Company or of the Trustee shall treat a Person as the Holder of such principal
amount of Outstanding Securities represented by a global Security as shall be
specified in a written statement, if any, of the Holder of such global Security,
which is produced to the Security Registrar by such Holder.

          Global Securities may be issued in either temporary or permanent form.
Permanent global Securities will be issued in definitive form.


                                  ARTICLE THREE

                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution, and set forth in an Officers'
Certificate, or established in one or more indentures supplemental hereto, prior
to the issuance of Securities of any series,

          (1) the title of the Securities of the series (which shall distinguish
     the Securities of the series from all other Securities);

          (2) any limit upon the aggregate principal amount of the Securities of
     the series which may be authenticated and delivered under this Indenture
     (except for Securities authenticated and delivered upon registration of
     transfer of, or in exchange for, or in lieu of, other Securities of the
     series pursuant to Section 304, 305, 306, 906 or 1107);

          (3) whether any Securities of the series are to be issuable initially
     in temporary global form and whether any Securities of the series are to be
     issuable in permanent global form, and, if so, whether beneficial owners of
     interests in any such global Security may


                                       22

<PAGE>   32


     exchange such interests for Securities of such series and of like tenor of
     any authorized form and denomination and the circumstances under which any
     such exchanges may occur, if other than in the manner provided in Section
     203, and the Depositary for any global Security or Securities of such
     series;

          (4) the manner in which any interest payable on a temporary global
     Security on any Interest Payment Date will be paid if other than in the
     manner provided in Section 304;

          (5) the date or dates on which the principal of (and premium, if any,
     on) the Securities of the series is payable or the method of determination
     thereof,

          (6) the rate or rates, or the method of determination thereof, at
     which the Securities of the series shall bear interest, if any, whether and
     under what circumstances Additional Amounts with respect to such Securities
     shall be payable, the date or dates from which such interest shall accrue,
     the Interest Payment Dates on which such interest shall be payable and, if
     other than as set forth in Section 101, the Regular Record Date for the
     interest payable on any Securities on any Interest Payment Date;

          (7) the place or places where, subject to the provisions of Section
     1002, the principal of (and premium, if any), any interest on and any
     Additional Amounts with respect to the Securities of the series shall be
     payable;

          (8) the period or periods within which, the price or prices (whether
     denominated in cash, securities or otherwise) at which and the terms and
     conditions upon which Securities of the series may be redeemed, in whole or
     in part, at the option of the Company, if the Company is to have that
     option, and the manner in which the Company must exercise any such option,
     if different from those set forth herein;

          (9) the obligation, if any, of the Company to redeem or purchase
     Securities of the series pursuant to any sinking fund or analogous
     provisions or at the option of a Holder thereof and the period or periods
     within which, the price or prices (whether denominated in cash, securities
     or otherwise) at which and the terms and conditions upon which Securities
     of the series shall be redeemed or purchased in whole or in part pursuant
     to such obligation;

          (10) the denomination in which any Securities of that series shall be
     issuable, if other than denominations of $1,000 and any integral multiple
     thereof;

          (11) the currency or currencies (including composite currencies) if
     other than Dollars, or the form, including equity securities, other debt
     securities (including Securities), warrants or any other securities or
     property of the Company or any other Person, in which payment of the
     principal of (and premium, if any), any interest on and any Additional
     Amounts with respect to the Securities of the series shall be payable;



                                       23

<PAGE>   33


          (12) if the principal of (and premium, if any) or interest on or any
     Additional Amounts with respect to the Securities of the series are to be
     payable, at the election of the Company or a Holder thereof, in a currency
     or currencies (including composite currencies) other than that in which the
     Securities are stated to be payable, the currency or currencies (including
     composite currencies) in which payment of the principal of (and premium, if
     any) and interest on, and any Additional Amounts with respect to,
     Securities of such series as to which such election is made shall be
     payable, and the periods within which and the terms and conditions upon
     which such election is to be made;

          (13) if the amount of payments of principal of (and premium, if any),
     any interest on and any Additional Amounts with respect to the Securities
     of the series may be determined with reference to any commodities,
     currencies or indices, values, rates or prices or any other index or
     formula, the manner in which such amounts shall be determined;

          (14) if other than the entire principal amount thereof, the portion of
     the principal amount of Securities of the series which shall be payable
     upon declaration of acceleration of the Maturity thereof pursuant to
     Section 502;

          (15) any additional means of satisfaction and discharge of this
     Indenture with respect to Securities of the series pursuant to Section 401,
     any additional conditions to discharge pursuant to Section 401 or 403 and
     the application, if any, of Section 403;

          (16) any deletions or modifications of or additions to the definitions
     set forth in Section 101, the Events of Default set forth in Section 501 or
     covenants of the Company set forth in Article Ten pertaining to the
     Securities of the series;

          (17) if the Securities of the series are to be convertible into or
     exchangeable for equity securities, other debt securities (including
     Securities), warrants or any other securities or property of the Company or
     any other Person, at the option of the Company or the Holder or upon the
     occurrence of any condition or event, the terms and conditions for such
     conversion or exchange; and

          (18) any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Indenture).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to the Board Resolution referred to above and (subject to Section 303) set
forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.

          At the option of the Company, interest on the Securities of any series
that bears interest may be paid by mailing a check to the address of any Holder
as such address shall appear in the Security Register.


                                       24

<PAGE>   34


          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
together with such Board Resolution shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Officers' Certificate setting forth the terms of the series.

          The Securities shall be subordinated in right of payment to Senior
Indebtedness as provided in Article Thirteen.

SECTION 302.  Denominations.

          The Securities of each series shall be issuable in such denominations
as shall be specified as contemplated by Section 301. In the absence of any such
provisions with respect to the Securities of any series, the Securities of such
series denominated in Dollars shall be issuable in denominations of $1,000 and
any integral multiple thereof. Unless otherwise provided as contemplated by
Section 301 with respect to any series of Securities, any Securities of a series
denominated in a currency other than Dollars shall be issuable in denominations
that are the equivalent, as determined by the Company by reference to the noon
buying rate in The City of New York for cable transfers for such currency, as
such rate is reported or otherwise made available by the Federal Reserve Bank of
New York, on the applicable issue date for such Securities, of $1,000 and any
integral multiple thereof.

SECTION 303.  Execution, Authentication Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its President, its Treasurer or one of its Vice
Presidents, under its corporate seal reproduced thereon or affixed thereto
attested by its Secretary or one of its Assistant Secretaries. The signature of
any of these officers on the Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company and having endorsed (by attachment or imprint thereon) the Senior
Subordinated Guarantees executed as provided in Article 14 by the Guarantors to
the Trustee for authentication, together with a Company Order for the
authentication and delivery of such Securities, and the Trustee in accordance
with the Company Order shall authenticate and deliver such Securities with such
Senior Subordinated Guarantees endorsed thereon, as in this Indenture provided
and not otherwise.

          If the form or terms of the Securities with the Senior Subordinated
Guarantees endorsed thereon of the series have been established in or pursuant
to one or more Board Resolutions or any other method permitted by Sections 201
and 301, in authenticating such Securities with the


                                       25

<PAGE>   35


Senior Subordinated Guarantees endorsed thereon, and accepting the additional
responsibilities under this Indenture in relation to such Securities with the
Senior Subordinated Guarantees endorsed thereon, the Trustee shall be entitled
to receive, and (subject to Section 601) shall be fully protected in relying
upon, an Opinion of Counsel stating,

          (a) if the form of such Securities with Senior Subordinated Guarantees
     endorsed thereon has been established by or pursuant to Board Resolution as
     permitted by Section 201, that such form has been established in conformity
     with the provisions of this Indenture;

          (b) if the terms of such Securities with Senior Subordinated
     Guarantees endorsed thereon have been established by or pursuant to Board
     Resolution as permitted by Section 301, that such terms have been
     established in conformity with the provisions of this Indenture; and

          (c) that such Securities with Senior Subordinated Guarantees endorsed
     thereon, when authenticated and delivered by the Trustee and issued by the
     Company and the Guarantors in the manner and subject to any conditions
     specified in such Opinion of Counsel, will constitute legal, valid and
     binding obligations of the Company and the Guarantors, enforceable in
     accordance with their terms, except as such enforcement is subject to the
     effect of (i) bankruptcy, insolvency, fraudulent conveyance, reorganization
     or other laws relating to or affecting creditors' rights and (ii) general
     principles of equity (regardless of whether such enforcement is considered
     in a proceeding in equity or at law).

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

          Each Security shall be dated the date of its authentication.

          No Security or Senior Subordinated Guarantee endorsed thereon shall be
entitled to any benefit under this Indenture or be valid or obligatory for any
purpose unless there appears on such Security, a certificate of authentication
substantially in the form provided for herein executed by the Trustee by manual
signature, and such certificate upon any Security with Senior Subordinated
Guarantees endorsed thereon shall be conclusive evidence, and the only evidence,
that such Security and Senior Subordinated Guarantees have been duly
authenticated and delivered hereunder. Notwithstanding the foregoing, if any
Security shall have been authenticated and delivered hereunder but never issued
and sold by the Company, and the Company shall deliver such Security to the
Trustee for cancellation as provided in Section 309 together with a written
statement (which need not comply with Section 103 and need not be accompanied by
an Opinion of Counsel) stating that such Security has never been issued and sold
by the Company, for all purposes of this Indenture such Security shall be deemed
never to have been authenticated and delivered hereunder and shall never be
entitled to the benefits of this Indenture.


                                       26

<PAGE>   36


SECTION 304.  Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company and the Guarantors may execute, and upon Company Order the Trustee shall
authenticate and deliver, temporary Securities with Senior Subordinated
Guarantees endorsed thereon which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities with Senior Subordinated
Guarantees endorsed thereon in lieu of which they are issued, in registered form
and with such appropriate insertions, omissions, substitutions and other
variations as the officers of the Company executing such Securities may
determine, as evidenced by their execution of such Securities and such Senior
Subordinated Guarantees.

          Except in the case of temporary Securities in global form (which shall
be exchanged in accordance with the provisions of the following paragraphs), if
temporary Securities of any series are issued, the Company and the Guarantors
will cause definitive Securities of that series to be prepared without
unreasonable delay. After the preparation of definitive Securities with Senior
Subordinated Guarantees endorsed thereon of such series, the temporary
Securities of such series shall be exchangeable for definitive Securities of
such series upon surrender of the temporary Securities of such series at the
office or agency of the Company in a Place of Payment for that series, without
charge to the Holder. Upon surrender for cancellation of any one or more
temporary Securities of any series, the Company shall execute and the Trustee
shall authenticate and deliver in exchange therefor a like principal amount of
definitive Securities with Senior Subordinated Guarantees endorsed thereon of
the same series of authorized denominations. Until so exchanged the temporary
Securities of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of such series.

          All Outstanding temporary Securities of any series shall in all
respects be entitled to the same benefits under this Indenture as definitive
Securities of the same series and of like tenor authenticated and delivered
hereunder.

SECTION 305.  Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept for each series of Securities at
one of the offices or agencies maintained pursuant to Section 1002 a register
(the register maintained in such office and in any other office or agency of the
Company in a Place of Payment being herein sometimes collectively referred to as
the "Security Register") in which, subject to such reasonable regulations as it
may prescribe, the Company shall provide for the registration of Securities and
of transfers of Securities of such series. The Trustee is hereby initially
appointed "Security Registrar" for the purpose of registering Securities and
transfers of Securities as herein provided.

          Except as set forth in Section 204 or as may be provided pursuant to
Section 301, upon surrender for registration of transfer of any Security of any
series at the office or agency in a Place of Payment for that series, the
Company and the Guarantors shall execute, and the Trustee shall authenticate and
deliver, in the name of the designated transferee or transferees, one or more


                                       27

<PAGE>   37



new Securities with Senior Subordinated Guarantees endorsed thereon of the same
series and of like tenor, of any authorized denominations and of a like
aggregate principal amount.

          At the option of the Holder, Securities of any series may be exchanged
for other Securities of the same series and of like tenor, of any authorized
denominations and of a like aggregate principal amount, upon surrender of the
Securities to be exchanged at such office or agency. Whenever any Securities are
so surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Securities which the Holder making the exchange is
entitled to receive.

          All Securities with Senior Subordinated Guarantees endorsed thereon
issued upon any registration of transfer or exchange of Securities shall be the
valid obligations of the Company and the Guarantors, evidencing the same debt,
and entitled to the same benefits under this Indenture, as the Securities with
Senior Subordinated Guarantees endorsed thereon surrendered upon such
registration of transfer or exchange.

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company, the Guarantors or the
Trustee) be duly endorsed, or be accompanied by a written instrument of transfer
in form satisfactory to the Company, the Guarantors, and the Security Registrar
duly executed, by the Holder thereof or his attorney duly authorized in writing.

          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company and the Guarantors may require payment
of a sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of
Securities, other than exchange pursuant to Section 304, 906 or 1107 not
involving any transfer.

          The Company and the Guarantors shall not be required (i) to issue,
register the transfer of or exchange Securities with Senior Subordinated
Guarantees endorsed thereon of any series during a period beginning at the
opening of business 15 days before the day of the mailing of a notice of
redemption of Securities of such series selected for redemption and ending at
the close of business on the day of the mailing of the relevant notice of
redemption or (ii) to register the transfer of or exchange any Security with
Senior Subordinated Guarantees endorsed thereon so selected for redemption in
whole or in part, except the unredeemed portion of any Security being redeemed
in part.

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
and the Guarantors shall execute and the Trustee shall authenticate and deliver
in exchange therefor a new Security with Senior Subordinated Guarantees endorsed
thereon of the same series and of like tenor and principal amount and bearing a
number not contemporaneously outstanding.


                                       28

<PAGE>   38


          If there shall be delivered to the Company, the Guarantors, and the
Trustee (i) evidence to their satisfaction of the destruction, loss or theft of
any Security and (ii) such security or indemnity as may be required by them to
save each of them and any agent of either of them harmless, then, in the absence
of notice to the Company or the Trustee that such Security has been acquired by
a bona fide purchaser, the Company and the Guarantors shall execute and upon its
request the Trustee shall authenticate and deliver, in lieu of any such
destroyed, lost or stolen Security, a new Security with Senior Subordinated
Guarantees endorsed thereon of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company and the Guarantors in
their discretion may, instead of issuing a new Security with Senior Subordinated
Guarantees endorsed thereon, pay such Security.

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

          Every new Security with Senior Subordinated Guarantees endorsed
thereon of any series issued pursuant to this Section in lieu of any destroyed,
lost or stolen Security shall constitute an original additional contractual
obligation of the Company and the relevant Guarantor, whether or not the
destroyed, lost or stolen Security shall be at any time enforceable by anyone,
and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of that series duly issued
hereunder.

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

SECTION 307.  Payment of Interest; Interest Rights Preserved.

          Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for such interest. Unless
otherwise provided with respect to the Securities of any series, payment of
interest may be made at the option of the Company by check mailed or delivered
to the address of any Person entitled thereto as such address shall appear in
the Security Register.

          Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in clause (1) or (2) below:


                                       29

<PAGE>   39


          (1) The Company may elect to make payment of any Defaulted Interest to
     the Persons in whose names the Securities of such series (or their
     respective Predecessor Securities) are registered at the close of business
     on a Special Record Date for the payment of such Defaulted Interest, which
     shall be fixed in the following manner. The Company shall notify the
     Trustee in writing of the amount of Defaulted Interest proposed to be paid
     on each Security of such series and the date of the proposed payment, and
     at the same time the Company shall deposit with the Trustee an amount of
     money equal to the aggregate amount proposed to be paid in respect of such
     Defaulted Interest or shall make arrangements satisfactory to the Trustee
     for such deposit prior to the date of the proposed payment, such money when
     deposited to be held in trust for the benefit of the Persons entitled to
     such Defaulted Interest as in this Clause provided. Thereupon the Trustee
     shall fix a Special Record Date for the payment of such Defaulted Interest
     which shall be not more than 15 days and not less than 10 days prior to the
     date of the proposed payment and not less than 10 days after the receipt by
     the Trustee of the notice of the proposed payment. The Trustee shall
     promptly notify the Company of such Special Record Date and, in the name
     and at the expense of the Company, shall cause notice of the proposed
     payment of such Defaulted Interest and the Special Record Date therefor to
     be mailed, first-class postage prepaid, to each Holder of Securities of
     such series at his address as it appears in the Security Register, not less
     than 10 days prior to such Special Record Date. The Trustee may, in its
     discretion, in the name and at the expense of the Company, cause a similar
     notice to be published at least once in an Authorized Newspaper, but such
     publication shall not be a condition precedent to the establishment of such
     Special Record Date. Notice of the proposed payment of such Defaulted
     Interest and the Special Record Date therefor having been so mailed, such
     Defaulted Interest shall be paid to the Persons in whose names the
     Securities of such series (or their respective Predecessor Securities) are
     registered at the close of business on such Special Record Date and shall
     no longer be payable pursuant to the following clause (2).

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

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

SECTION 308.  Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Guarantors, the Trustee and any agent of the Company, the
Guarantors or the Trustee may treat the Person in whose name such Security is
registered as the owner of such Security for the purpose of


                                       30

<PAGE>   40



receiving payment of principal of (and premium, if any) and (subject to Sections
305 and 307) interest on such Security and for all other purposes whatsoever,
whether or not such Security be overdue, and neither the Company, the
Guarantors, the Trustee nor any agent of the Company, any Guarantor or the
Trustee shall be affected by notice to the contrary.

SECTION 309.  Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee.
All Securities so delivered, together with Senior Subordinated Guarantees
endorsed thereon, shall be promptly cancelled by the Trustee. The Company may at
any time deliver to the Trustee for cancellation any Securities previously
authenticated and delivered hereunder which the Company may have acquired in any
manner whatsoever, and all Securities so delivered, together with Senior
Subordinated Guarantees endorsed thereon, shall be promptly cancelled by the
Trustee. No Securities shall be authenticated in lieu of or in exchange for any
Securities cancelled as provided in this Section, except as expressly permitted
by this Indenture. All cancelled Securities held by the Trustee, together with
Senior Subordinated Guarantees endorsed thereon, shall be disposed of as
directed by a Company Order; provided that the Trustee shall not be required to
destroy such Securities.

SECTION 310.  Computation of Interest.

          Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a year of twelve 30- day months.

SECTION 311.  CUSIP Numbers.

          The Company in issuing the Securities may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in notices
of redemption as a convenience to Holders; provided that any such notice may
state that no representation is made as to the correctness of such numbers
either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be affected
by any defect in or omission of such numbers.

                                  ARTICLE FOUR

                     SATISFACTION, DISCHARGE AND DEFEASANCE

SECTION 401.  Satisfaction and Discharge of Indenture.

          This Indenture shall upon Company Request cease to be of further
effect with respect to Securities of a series, and the Trustee, at the expense
of the Company, shall execute proper


                                       31

<PAGE>   41



instruments acknowledging satisfaction and discharge of this Indenture with
respect to Securities of such series, when

          (1) either

               (A) all Securities of such series theretofore authenticated and
          delivered (other than (i) Securities which have been destroyed, lost
          or stolen and which have been replaced or paid as provided in Section
          306, and (ii) Securities for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

               (B) with respect to all Outstanding Securities of such series not
          theretofore delivered to the Trustee for cancellation, the Company has
          deposited or caused to be deposited with the Trustee as trust funds,
          under the terms of an irrevocable trust agreement in form and
          substance satisfactory to the Trustee, money or U.S. Government
          Obligations maturing as to principal and interest in such amounts and
          at such times as will (together with the income to accrue thereon and
          without consideration of any reinvestment thereof) be sufficient to
          pay and discharge (with such delivery in trust to be for the stated
          purpose of paying and discharging) the entire indebtedness on all
          Outstanding Securities of such series not theretofore delivered to the
          Trustee for cancellation for principal (and premium and Additional
          Amounts, if any) and interest to the Stated Maturity or any Redemption
          Date contemplated by the penultimate paragraph of this Section, as the
          case may be; or

               (C) the Company has properly fulfilled such other means of
          satisfaction and discharge as is specified, as contemplated by Section
          301, to be applicable to the Securities of such series;

          (2) the Company has paid or caused to be paid all other sums payable
     hereunder by the Company and the Guarantors with respect to the Outstanding
     Securities of such series;

          (3) the Company has complied with any other conditions specified
     pursuant to Section 301 to be applicable to the discharge of Securities of
     such series pursuant to this Section 401;

          (4) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the satisfaction and discharge of this
     Indenture with respect to the Outstanding Securities of such series have
     been complied with;

          (5) if the conditions set forth in Section 401(1)(A) have not been
     satisfied, and unless otherwise specified pursuant to Section 301 for the
     Securities of such series, the Company has delivered to the Trustee an
     Opinion of Counsel to the effect that the Holders


                                       32

<PAGE>   42


     of Securities of such series will not recognize income, gain or loss for
     United States federal income tax purposes as a result of such deposit,
     satisfaction and discharge and will be subject to United States federal
     income tax on the same amount and in the same manner and at the same time
     as would have been the case if such deposit, satisfaction and discharge had
     not occurred; and

          (6) no Default or Event of Default with respect to the Securities of
     such issue shall have occurred and be continuing on the date of such
     deposit or, insofar as clauses (5) or (6) of Section 501 are concerned, at
     any time in the period ending on the 91st day after the date of such
     deposit (it being understood that this condition shall not be deemed
     satisfied until the expiration of such period).

          For the purposes of this Indenture, "U.S. Government Obligations"
means direct non-callable obligations of, or non-callable obligations the
payment of principal of and interest on which is guaranteed by, the United
States of America, or to the payment of which obligations or guarantees the full
faith and credit of the United States of America is pledged, or beneficial
interests in a trust the corpus of which consists exclusively of money or such
obligations or a combination thereof.

          If any Outstanding Securities of such series are to be redeemed prior
to their Stated Maturity, whether pursuant to any optional redemption provisions
or in accordance with any mandatory sinking fund requirement, the trust
agreement referred to in subclause (B) of clause (1) of this Section shall
provide therefor and the Company shall make such arrangements as are
satisfactory to the Trustee for the giving of notice of redemption by the
Trustee in the name, and at the expense, of the Company.

          Notwithstanding the satisfaction and discharge of this Indenture with
respect to the Outstanding Securities of such series pursuant to this Section
401, the obligations of the Company to the Trustee under Section 607, the
obligations to any Authenticating Agent under Section 614 and, except for a
discharge pursuant to subclause (A) of clause (1) of this Section, the
obligations of the Company under Sections 305, 306, 404, 610(e), 701, 1001 and
1002 and the obligations of the Trustee under Section 402 and the last paragraph
of Section 1003 shall survive.

SECTION 402.  Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities, and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest and Additional Amounts for the payment of which such money has
been deposited with the Trustee.


                                       33

<PAGE>   43


SECTION 403.  Discharge of Liability on Securities of Any Series.

          If this Section is specified, as contemplated by Section 301, to be
applicable to Securities of any series, the Company shall be deemed to have paid
and discharged the entire indebtedness on all the Outstanding Securities of such
series, the obligation of the Company under this Indenture and the Securities of
such series to pay the principal of (and premium, if any) and interest on and
any Additional Amounts with respect to Securities of such series, shall cease,
terminate and be completely discharged and the Trustee, at the expense of the
Company, shall execute proper instruments acknowledging such satisfaction and
discharge, when

          (1) the Company has complied with the provisions of Section 401 (other
     than any additional conditions specified pursuant to Sections 301 and
     401(3) and except that the Opinion of Counsel referred to in Section 401(5)
     shall state that it is based on a ruling by the Internal Revenue Service or
     other change since the date hereof under applicable Federal income tax law)
     with respect to all Outstanding Securities of such series,

          (2) the Company has delivered to the Trustee a Company Request
     requesting such satisfaction and discharge,

          (3) the Company has complied with any other conditions specified
     pursuant to Section 301 to be applicable to the discharge of Securities of
     such series pursuant to this Section 403, and

          (4) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the discharge of the indebtedness on the
     Outstanding Securities of such series have been complied with.

          Upon the satisfaction of the conditions set forth in this Section with
respect to all the Outstanding Securities of any series, the terms and
conditions of such series, including the terms and conditions with respect
thereto set forth in this Indenture, shall no longer be binding upon, or
applicable to, the Company; provided that, the Company shall not be discharged
from any payment obligations in respect of Securities of such series which are
deemed not to be Outstanding under clause (iii) of the definition thereof if
such obligations continue to be valid obligations of the Company under
applicable law or pursuant to Section 305 or 306.

SECTION 404.  Applicability of Defeasance Provisions; Company's Option to Effect
              Defeasance or Covenant Defeasance.

          Except as otherwise specified as contemplated by Section 301 for the
Securities of any series, the provisions of Sections 404 through 410 inclusive,
with such modifications thereto as may be specified pursuant to Section 301 with
respect to any series of Securities, shall be applicable to the Securities.


                                       34

<PAGE>   44


SECTION 405.  Defeasance and Discharge.

          On and after the date on which the conditions set forth in Section 407
are satisfied with respect to the Securities of any series, the Company shall be
deemed to have paid and been discharged from its obligations with respect to
such Securities (hereinafter "defeasance"). For this purpose, such defeasance
means that the Company shall be deemed to have paid and discharged the entire
indebtedness represented by such Securities which shall thereafter be deemed to
be "Outstanding" only for the purposes of Section 408 and the other Sections of
this Indenture referred to in clause (ii) of this Section, and to have satisfied
all its other obligations under such Securities and this Indenture insofar as
such Securities are concerned (and the Trustee, upon payment of all amounts due
it under Section 607, at the expense of the Company, shall on a Company Order
execute proper instruments acknowledging the same), except the following which
shall survive until otherwise terminated or discharged hereunder: (i) the rights
of Holders of such Securities to receive, solely from the trust funds described
in Section 407(a) and as more fully set forth in such Section, payments in
respect of the principal of, premium, if any, and interest, if any, on such
Securities when such payments are due; (ii) the Company's obligations with
respect to such Securities under Sections 305, 309, 1002 and 1003 and with
respect to the payment of Additional Amounts, if any, payable with respect to
such Securities as specified pursuant to clause (13) of Section 301; (iii) the
Company's obligations with respect to a conversion or exchange of such
Securities; (iv) the rights, powers, trusts, duties and immunities of the
Trustee hereunder; and (v) this Article Four. Subject to compliance with this
Article Four, the Company may defease the Securities of any series under this
Section 405 notwithstanding a prior covenant defeasance (as defined herein)
under Section 406 with respect to such Securities. Following a defeasance,
payment of such Securities may not be accelerated because of an Event of
Default.

SECTION 406.  Covenant Defeasance.

          On and after the date on which the conditions set forth in Section 407
(other than Section 407(c)) are satisfied with respect to the Securities of or
within any series, (i) the Company shall be released from its obligations under
Sections 801 and 1004 and, if specified pursuant to Section 301, its obligations
under any other covenant, with respect to such Securities and (ii) the
occurrence of any event specified in clauses (4) and (7) of Section 501 (with
respect to any of the obligations described in clause (i) above) shall be deemed
not to be or result in an Event of Default (hereinafter, "covenant defeasance"),
and such Securities shall thereafter be deemed to be not "Outstanding" for the
purposes of any request, demand, authorization, direction, notice, waiver,
consent or declaration or Act of Holders (and the consequences of any thereof)
in connection with Section 801 or Section 1004, such other covenant specified
pursuant to Section 301, but shall continue to be deemed "Outstanding" for all
other purposes hereunder. For this purpose, such covenant defeasance means that,
with respect to such Securities, the Company may omit to comply with and shall
have no liability in respect of any term, condition or limitation set forth in
any such Section or such other covenant, whether directly or indirectly, by
reason of any reference elsewhere herein to any such Section or such other
covenant or by reason of reference in any such Section or such other covenant to
any other provision herein or in any other document and such omission to comply
shall not constitute a Default or an Event of Default under clauses (4) and (7)
of Section 501


                                       35

<PAGE>   45


or otherwise, as the case may be, but, except as specified above the remainder
of this Indenture and such Securities and any interest coupons appertaining
thereto shall be unaffected thereby.

SECTION 407.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to application of Section 405 or
Section 406 to any Securities of any series:

          (a) the Company shall have deposited or caused to be deposited
irrevocably with the Trustee (or another trustee satisfying the requirements of
Section 609 who shall agree to comply with, and shall be entitled to the
benefits of, the provisions of Sections 404 through 410 inclusive and the last
paragraph of Section 1003 applicable to the Trustee, for purposes of such
Sections also a "Trustee") as trust funds in trust for the purpose of making the
payments referred to in clauses (x) and (y) of this Section 407(a), specifically
pledged as security for, and dedicated solely to, the benefit of the Holders of
such Securities, with written instructions to the Trustee as to the application
thereof, (A) money in an amount (in such currency, currencies or currency unit
or units in which such Securities are then specified as payable at Stated
Maturity), or (B) if Securities of such series are not subject to repayment at
the option of Holders, Government Obligations which through the payment of
interest and principal in respect thereof in accordance with their terms will
provide, not later than one day before the due date of any payment referred to
in clause (x) or (y) of this Section 407(a), money in an amount or (C) a
combination thereof in an amount, sufficient, in the opinion of a nationally
recognized firm of independent certified public accountants or a nationally
recognized investment banking firm expressed in a written certification thereof
delivered to the Trustee, to pay and discharge, and which shall be applied by
the Trustee to pay and discharge, (x) the principal of, premium, if any, and
interest, if any, on such Securities on the Stated Maturity of such principal or
installment of principal or interest and (y) any mandatory sinking fund payments
applicable to such Securities on the date on which such payments are due and
payable in accordance with the terms of this Indenture and such Securities.
Before such a deposit the Company may make arrangements satisfactory to the
Trustee for the redemption of Securities at a future date or dates in accordance
with Article Eleven which shall be given effect in applying the foregoing.

          (b) No Default or Event of Default with respect to the Securities of
that series shall have occurred or be continuing on the date of such a deposit
or shall occur as a result of such a deposit or, insofar as clauses (5) and (6)
of Section 501 are concerned, shall occur at any time during the period ending
on the 91st day after the date of such deposit.

          (c) In the case of an election under Section 405, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel
to the effect that (i) the Company has received from or there has been published
by, the Internal Revenue Service a ruling, or (ii) since the date of execution
of this Indenture, there has been a change in the applicable U.S. Federal income
tax law, in either case to the effect that, and based thereon such opinion shall
confirm that, the Holders of such Securities and any interest coupons
appertaining thereto will not recognize income, gain or loss for U.S. Federal
income tax purposes as a result of such defeasance and will be


                                       36

<PAGE>   46


subject to U.S. Federal income tax on the same amount and in the same manner and
at the same times, as would have been the case if such deposit, defeasance and
discharge had not occurred.

          (d) In the case of an election under Section 406, the Company shall
have delivered to the Trustee an Officers' Certificate and an Opinion of Counsel
to the effect that the Holders of such Securities and any interest coupons
appertaining thereto will not recognize income, gain or loss for U.S. Federal
income tax purposes as a result of such covenant defeasance and will b subject
to U.S. Federal income tax on the same amount and in the same manner and at the
same times, as would have been the case if such deposit and covenant defeasance
had not occurred.

          (e) The Company shall have delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent to the defeasance under Section 405 or the covenant defeasance under
Section 406 (as the case may be) have been complied with.

          (f) Such defeasance or covenant defeasance shall be effected in
compliance with any additional or substitute terms, conditions or limitations
which may be imposed on the Company in connection therewith as contemplated by
Section 301.

          (g) At the time of such deposit: (A) no Default in the payment of
principal of (or premium, if any) or interest on any Senior Debt shall have
occurred and be continuing or (B) no other Event of Default with respect to any
Senior Debt shall have occurred and be continuing and shall have resulted in
such Senior Debt becoming or being declared due and payable prior to the date on
which it would otherwise have become due and payable, or, in the case of either
clause (A) or clause (B) above, each such Default or Event of Default shall have
been cured or waived or shall have ceased to exist.

SECTION 408.  Deposited Money and Government Obligations to be Held in Trust.

          Subject to the provisions of the last paragraph of Section 1003, all
money and Government Obligations (or other property as may be provided pursuant
to Section 301) (including the proceeds thereof) deposited with the Trustee
pursuant to Section 407 in respect of any Securities of any series shall be held
in trust and applied by the Trustee, in accordance with the provisions of such
Securities and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Holders of such Securities of all sums due and to
become due thereon in respect of principal, premium, if any, and interest, if
any, but such money need not be segregated from other funds except as provided
herein and except to the extent required by law.

SECTION 409.  Repayment to Company.

          The Trustee (and any Paying Agent) shall promptly pay to the Company
upon Company Request any excess money or securities held by them at any time.



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<PAGE>   47



          The provisions of the last paragraph of Section 1003 shall apply to
any money or securities held by the Trustee or any Paying Agent under this
Article Four that remain unclaimed for two years after the Maturity of any
series of Securities for which money or securities have been deposited pursuant
to Section 407(a).

SECTION 410.  Indemnity for Government Obligations.

          The Company shall pay, and shall indemnify the Trustee against, any
tax, fee or other charge imposed on or assessed against Government Obligations
deposited pursuant to this Article or the principal and interest and any other
amount received on such Government Obligations.

SECTION 411.  Reinstatement.

          If the Trustee or Paying Agent is unable to apply any money or U.S.
Government Obligations deposited with respect to Securities of any series in
accordance with Section 401 or Section 407 by reason of any legal proceeding or
by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture with respect to the Securities of such series
and the Securities of such series shall be revived and reinstated as though no
deposit had occurred pursuant to Section 401 or Section 407 until such time as
the Trustee or Paying Agent is permitted to apply all such money or U.S.
Government Obligations in accordance with Section 401 or Section 407; provided,
however, that if the Company has made any payment of principal of (or premium,
if any), or interest on or any Additional Amounts with respect to any Securities
because of the reinstatement of its obligations, the Company shall be subrogated
to the rights of the Holders of such Securities to receive such payment from the
money or U.S. Government Obligations held by the Trustee or Paying Agent.

                                  ARTICLE FIVE

                                    REMEDIES

SECTION 501.  Events of Default.

          "Event of Default", wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be occasioned by the provisions of Article
Thirteen or be voluntary or involuntary or be effected by operation of law or
pursuant to any judgment, decree or order of any court or any order, rule or
regulation of any administrative or governmental body), unless it is either
inapplicable to a particular series or it is specifically deleted or modified in
or pursuant to the supplemental indenture or Board Resolution establishing such
series of Securities or in the form of Security for such series:

          (1) default in the payment of any interest on or any Additional
     Amounts with respect to any Security of that series when such interest or
     Additional Amounts become due and payable, and continuance of such default
     for a period of 30 days; or


                                       38

<PAGE>   48


          (2) default in the payment of the principal of (or premium, if any,
     on) any Security of that series at its Maturity; or

          (3) default in the deposit of any mandatory sinking fund payment, when
     and as due by the terms of a Security of that series and continuance of
     such default for a period of 30 days; or

          (4) default in the performance or breach of any covenant or warranty
     of the Company or any Guarantor in this Indenture (other than a covenant or
     warranty a default in whose performance or whose breach is elsewhere in
     this Section specifically dealt with or which has expressly been included
     in this Indenture solely for the benefit of one or more series of
     Securities other than that series), and continuance of such default or
     breach for a period of 90 days after there has been given, by registered or
     certified mail, to the Company by the Trustee or to the Company and the
     Trustee by the Holders of at least 25% in principal amount of all
     Outstanding Securities a written notice specifying such default or breach
     and requiring it to be remedied and stating that such notice is a "Notice
     of Default" hereunder; or

          (5) the entry by a court having jurisdiction in the premises of (A) a
     decree or order for relief in respect of the Company in an involuntary case
     or proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or (B) a decree or order adjudging the
     Company as bankrupt or insolvent, or approving as properly filed a petition
     seeking reorganization, arrangement, adjustment or composition of or in
     respect of the Company under any applicable Federal or State law, or
     appointing a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any substantial
     part of its property, or ordering the winding up or liquidation of its
     affairs, and the continuance of any such decree or order for relief or any
     such other decree or order unstayed and in effect for a period of 90
     consecutive days; or

          (6) the commencement by the Company of a voluntary case or proceeding
     under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or to the commencement of
     any bankruptcy or insolvency case or proceeding against it, or the filing
     by it, of a petition or answer or consent seeking reorganization or relief
     under any applicable Federal or State law, or the consent by it to the
     filing of such petition or to the appointment of or taking possession by a
     custodian, receiver, liquidator, assignee, trustee, sequestrator or similar
     official of the Company or of any substantial part of its property, or the
     making by it of an assignment for the benefit of creditors, or the
     admission by it in writing of its inability to pay its debts generally as
     they become due, or the taking of corporate action by the Company in
     furtherance of any such action; or


                                       39

<PAGE>   49


          (7) any other Event of Default provided with respect to Securities of
     that series.

          Notwithstanding the foregoing provisions of this Section 501, if the
principal of (and premium, if any) or any interest on, or Additional Amounts
with respect to, any Security is payable in a currency or currencies (including
a composite currency) other than Dollars and such currency (or currencies) is
(or are) not available to the Company for making payment thereof due to the
imposition of exchange controls or other circumstances beyond the control of the
Company (a "Conversion Event"), the Company will be entitled to satisfy its
obligations to Holders of the Securities by making such payment in Dollars in an
amount equal to the Dollar equivalent of the amount payable in such other
currency, as determined by the Company by reference to the noon buying rate in
The City of New York for cable transfers for such currency ("Exchange Rate"), as
such Exchange Rate is certified for customs purposes by the Federal Reserve Bank
of New York on the date of such payment, or, if such rate is not then available,
on the basis of the most recently available Exchange Rate. Notwithstanding the
foregoing provisions of this Section 501, any payment made under such
circumstances in Dollars where the required payment is in a currency other than
Dollars will not constitute an Event of Default under this Indenture.

          Promptly after the occurrence of a Conversion Event with respect to
Securities of any series, the Company shall give written notice thereof to the
Trustee; and the Trustee, promptly after receipt of such notice, shall give
notice thereof in the manner provided in Section 107 to the Holders of such
series. Promptly after the making of any payment in Dollars as a result of a
Conversion Event with respect to Securities of any series, the Company shall
give notice in the manner provided in Section 107 to the Holders of such series,
setting forth the applicable Exchange Rate and describing the calculation of
such payments.

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default with respect to any Securities of any series at
the time Outstanding occurs and is continuing, then in every such case the
Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of (i) the series affected by such default (in the case
of an Event of Default described in clause (1), (2), (3) or (7) of Section 501)
or (ii) all series of Securities (subject to the immediately following sentence,
in the case of an Event of Default described in clause (4) of Section 501) may
declare the principal amount (or, if any such Securities are Original Issue
Discount Securities, such portion of the principal amount as may be specified in
the terms of that series) of all of the Securities of the series affected by
such default or all series, as the case may be, to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. If an Event of Default
described in clause (5) or (6) of Section 501 shall occur, the principal amount
of the Outstanding Securities of all series ipso facto shall become and be
immediately due and payable without any declaration or other act on the part of
the Trustee or any Holder.

          At any time after such a declaration of acceleration with respect to
Securities of any series (or of all series, as the case may be) has been made
and before a judgment or decree for


                                       40

<PAGE>   50


payment of the money due has been obtained by the Trustee as hereinafter in this
Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series (or of all series, as the case may be), by
written notice to the Company and the Trustee, may rescind and annul such
declaration and its consequences if

          (1) the Company has paid or deposited with the Trustee a sum
     sufficient to pay

               (A) all overdue interest on, and any Additional Amounts with
          respect to, all Securities of that series (or of all series, as the
          case may be),

               (B) the principal of (and premium, if any, on) any Securities of
          that series (or of all series, as the case may be) which have become
          due otherwise than by such declaration of acceleration and interest
          thereon at the rate or rates prescribed therefor in such Securities
          (in the case of Original Issue Discount Securities, the Securities'
          Yield to Maturity),

               (C) to the extent that payment of such interest is lawful,
          interest upon overdue interest and any Additional Amounts at the rate
          or rates prescribed therefor in such Securities (in the case of
          Original Issue Discount Securities, the Securities' Yield to
          Maturity), and

               (D) all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel;

     and

          (2) all Events of Default with respect to Securities of that series
     (or of all series, as the case may be), other than the non-payment of the
     principal of Securities of that series (or of all series, as the case may
     be) which have become due solely by such declaration of acceleration, have
     been cured or waived as provided in Section 512.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

          The Company covenants that if

          (1) default is made in the payment of any installment of interest on,
     or any Additional Amounts with respect to, any Security of any series when
     such interest or Additional Amounts shall have become due and payable and
     such default continues for a period of 30 days, or


                                       41

<PAGE>   51


          (2) default is made in the payment of the principal of (or premium, if
     any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and Additional
Amounts and, to the extent that payment of such interest shall be legally
enforceable, interest on any overdue principal (and premium, if any) and on any
overdue interest and Additional Amounts, at the rate or rates prescribed
therefor in such Securities (or in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity), and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

          If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon such Securities, wherever
situated.

          If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate judicial proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

SECTION 504.  Trustee May File Proofs of Claim.

          In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any Guarantor or any other
obligor upon the Securities or the property of the Company or of such other
obligor or their creditors, the Trustee (irrespective of whether the principal
(or lesser amount in the case of Original Issue Discount Securities) of the
Securities shall then be due and payable as therein expressed or by declaration
or otherwise and irrespective of whether the Trustee shall have made any demand
on the Company for the payment of overdue principal (and premium, if any),
interest or any Additional Amounts) shall be entitled and empowered, by
intervention in such proceeding or otherwise,

          (i) to file and prove a claim for the whole amount of principal (or
     lesser amount in the case of Original Issue Discount Securities) (and
     premium, if any) and interest and any Additional Amounts owing and unpaid
     in respect of the Securities and to file such other papers or documents as
     may be necessary or advisable in order to have the claims of the Trustee
     (including any claim for the reasonable compensation, expenses,
     disbursements and


                                       42

<PAGE>   52



     advances of the Trustee, its agents and counsel) and of the Holders allowed
     in such judicial proceeding, and

          (ii) to collect and receive any monies or other property payable or
     deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 607.

          Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of any Holder in any such proceedings; provided, however,
that the Trustee may, on behalf of the Holders, vote for the election of a
trustee in bankruptcy or similar official.

SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or 
              Coupons.

          All rights of action and claim under this Indenture or the Securities
or the Senior Subordinated Guarantees may be prosecuted and enforced by the
Trustee without possession of any of the Securities or the production thereof in
any proceeding relating thereto, and any such proceeding instituted by the
Trustee shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall, after provision for the payment of the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and counsel, be for the ratable benefit of the Holders of the Securities in
respect of which such judgment has been recovered.

SECTION 506.  Application of Money Collected.

          Subject to Article Thirteen, any money collected by the Trustee
pursuant to this Article shall be applied in the following order, at the date or
dates fixed by the Trustee and, in case of the distribution of such money on
account of principal (or premium, if any), interest or any Additional Amounts,
upon presentation of the Securities, and the notation thereon of the payment if
only partially paid and upon surrender thereof if fully paid:

          FIRST: To the payment of all amounts due the Trustee under Section
     607;

          SECOND: To the payment of the amounts then due and unpaid for
     principal of (and premium, if any) and interest on and any Additional
     Amounts with respect to the Securities in respect of which or for the
     benefit of which such money has been collected, ratably, without preference
     or priority of any kind, according to the amounts due and payable on such


                                       43

<PAGE>   53



     Securities for principal (and premium, if any), interest and Additional
     Amounts, respectively; and

          THIRD: The balance, if any, to the Person or Persons entitled thereto.

          To the fullest extent allowed under applicable law, if for the purpose
of obtaining judgment against the Company in any court it is necessary to
convert the sum due in respect of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to the Securities of any
series (the "Required Currency") into a currency in which a judgment will be
rendered (the "Judgment Currency"), the rate of exchange used shall be the rate
at which in accordance with normal banking procedures the Trustee could purchase
in The City of New York the Required Currency with the Judgment Currency on the
New York Business Day next preceding that on which final judgment is given.
Neither the Company nor the Trustee shall be liable for any shortfall nor shall
it benefit from any windfall in payments to Holders of Securities under this
Section caused by a change in exchange rates between the time the amount of a
judgment against it is calculated as above and the time the Trustee converts the
Judgment Currency into the Required Currency to make payments under this Section
to Holders of Securities, but payment of such judgment shall discharge all
amounts owed by the Company on the claim or claims underlying such judgment.

SECTION 507.  Limitation on Suits.

          Subject to Section 508, no Holder of any Security of any series shall
have any right to institute any proceeding, judicial or otherwise, with respect
to this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless

          (1) an Event of Default with respect to Securities of such series
     shall have occurred and be continuing and such Holder has previously given
     written notice to the Trustee of such continuing Event of Default;

          (2) the Holders of not less than 25% in principal amount of the
     Outstanding Securities of that series shall have made written request to
     the Trustee to institute proceedings in respect of such Event of Default in
     its own name as Trustee hereunder;

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

          (4) the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and

          (5) no direction inconsistent with such written request has been given
     to the Trustee during such 60-day period by the Holders of a majority in
     principal amount of the Outstanding Securities of that series;


                                       44

<PAGE>   54


it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and
              Interest.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 307) interest on and any Additional Amounts with respect to such
Security on the Stated Maturity or Maturities expressed in such Security (or, in
the case of redemption, on the Redemption Date) and to institute suit for the
enforcement of any such payment, and such rights shall not be impaired or
affected without the consent of such Holder.

SECTION 509.   Restoration of Rights and Remedies.

          If the Trustee or any Holder of any Security has instituted any
proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every
such case the Company, the Trustee and the Holders shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder, and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510.  Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last paragraph
of Section 306, no right or remedy herein conferred upon or reserved to the
Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

SECTION 511.  Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any Securities
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein. Every right and remedy given by this Article or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.


                                       45

<PAGE>   55


SECTION 512.  Control by Holders.

          With respect to Securities of any series, the Holders of a majority in
principal amount of the Outstanding Securities of such series shall have the
right to direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, relating to or arising under an Event of Default described in
clause (1), (2), (3) or (7) of Section 501, and with respect to all Securities
the Holders of a majority in principal amount of all Outstanding Securities
shall have the right to direct the time, method and place of conducting any
remedy available to the Trustee, or exercising any trust or power conferred on
the Trustee, not relating to or arising under such an Event of Default, provided
that in each such case

          (1) such direction shall not be in conflict with any rule of law or
     with this Indenture, and

          (2) the Trustee may take any other action deemed proper by the Trustee
     which is not inconsistent with such direction.

SECTION 513.  Waiver of Past Defaults.

          The Holders of a majority in principal amount of the Outstanding
Securities of any series may on behalf of the Holders of all the Securities of
such series waive any past default hereunder with respect to such series and its
consequences, and the Holders of a majority in principal amount of all
Outstanding Securities may on behalf of the Holders of all Securities waive any
other past default hereunder and its consequences, except in each case a default

          (1) in the payment of the principal of (or premium, if any) or
     interest on, or any Additional Amounts with respect to, any Security, or

          (2) in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security affected.

          Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

          All parties to this Indenture agree, and each Holder of any Security
by his acceptance thereof shall be deemed to have agreed, that any court may in
its discretion require, in any suit for the enforcement of any right or remedy
under this Indenture, or in any suit against the Trustee for any action taken or
omitted by it as Trustee, the filing by any party litigant in such suit of an
undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable


                                       46

<PAGE>   56


costs, including reasonable attorneys' fees, against any party litigant in such
suit, having due regard to the merits and good faith of the claims or defenses
made by such party litigant; but the provisions of this Section shall not apply
to any suit instituted by the Company or any Guarantor, to any suit instituted
by the Trustee, to any suit instituted by any Holder, or group of Holders,
holding in the aggregate more than 10% in principal amount of the Outstanding
Securities of any series, or to any suit instituted by any Holder for the
enforcement of the payment of the principal of (or premium, if any) or interest
on, or any Additional Amounts with respect to, any Security on or after the
Stated Maturity or Maturities expressed in such Security (or, in the case of
redemption, on or after the Redemption Date).

SECTION 515.   Waiver of Stay or Extension Laws.

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

                                   ARTICLE SIX

                                   THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

          (a) Except during the continuance of an Event of Default with respect
     to the Securities of any series,

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

               (2) in the absence of bad faith on its part, the Trustee may
          conclusively rely, as to the truth of the statements and the
          correctness of the opinions expressed therein, upon certificates or
          opinions furnished to the Trustee and conforming to the requirements
          of this Indenture; but in the case of any such certificates or
          opinions which by any provision hereof are specifically required to be
          furnished to the Trustee, the Trustee shall be under a duty to examine
          the same to determine whether or not they conform to the requirements
          of this Indenture.

          (b) In case an Event of Default has occurred and is continuing with
     respect to the Securities of any series, the Trustee shall exercise such of
     the rights and powers vested in it


                                       47

<PAGE>   57


     by this Indenture, and use the same degree of care and skill in their
     exercise, as a prudent man would exercise or use under the circumstances in
     the conduct of his own affairs.

          (c) No provision of this Indenture shall be construed to relieve the
     Trustee from liability for its own negligent action, its own negligent
     failure to act or its own willful misconduct, except that

              (1) this Subsection shall not be construed to limit the effect of
          Subsection (a) of this Section;

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

               (3) the Trustee shall not be liable with respect to any action 
          taken or omitted to be taken by it in good faith in accordance with
          the direction of the Holders of a majority in principal amount of the
          Outstanding Securities of any series or of all series, determined as
          provided in Section 511, relating to the time, method and place of
          conducting any proceeding for any remedy available to the Trustee, or
          exercising any trust or power conferred upon the Trustee, under this
          Indenture with respect to the Securities of such series; and

               (4) no provision of this Indenture shall require the Trustee to
          expend or risk its own funds or otherwise incur any financial
          liability in the performance of any of its duties hereunder, or in the
          exercise of any of its rights or powers, if it shall have reasonable
          grounds for believing that repayment of such funds or indemnity
          satisfactory to it against such risk or liability is not assured to
          it.

          (d) Whether or not therein expressly so provided, every provision of
     this Indenture relating to the conduct or affecting the liability of or
     affording protection to the Trustee shall be subject to the provisions of
     this Section.

SECTION 602.  Notice of Defaults.

          Within 90 days after the occurrence of any default hereunder with
respect to the Securities of any series, the Trustee shall give notice of such
default hereunder known to the Trustee to all Holders of Securities of such
series in the manner provided in Section 107, unless such default shall have
been cured or waived; provided, however, that, except in the case of a default
in the payment of the principal of (or premium, if any) or interest on, or any
Additional Amounts with respect to, any Security of such series or in the
payment of any sinking fund installment with respect to Securities of such
series, the Trustee shall be protected in withholding such notice if and so long
as the board of directors, the executive committee or a trust committee of
directors or Responsible Officers of the Trustee in good faith determines that
the withholding of such notice is in the interest of the Holders of Securities
of such series; and provided, further, that in the case of any default of


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<PAGE>   58


the character specified in Section 501(4) with respect to Securities of such
series, no such notice to Holders shall be given until at least 30 days after
the occurrence thereof. For the purpose of this Section, the term "default"
means any event, act or condition which is, or after notice or lapse of time or
both would become, an Event of Default with respect to Securities of such
series.

SECTION 603.  Certain Rights of Trustee.

          Subject to the provisions of Section 601:

          (a) the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon, other evidence of indebtedness or other
     paper or document believed by it to be genuine and to have been signed or
     presented by the proper party or parties;

          (b) any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order and any
     resolution of the Board of Directors may be sufficiently evidenced by a
     Board Resolution;

          (c) whenever in the administration of this Indenture the Trustee shall
     deem it desirable that a matter be proved or established prior to taking,
     suffering or omitting any action hereunder, the Trustee (unless other
     evidence be herein specifically prescribed) may, in the absence of bad
     faith on its part, rely upon an Officers' Certificate;

          (d) the Trustee may consult with counsel and the written advice of
     such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (e) the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders pursuant to this Indenture, unless such Holders shall
     have offered to the Trustee security or indemnity satisfactory to it
     against the costs, expenses and liabilities which might be incurred by it
     in compliance with such request or direction;

          (f) the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon, other evidence of indebtedness or other
     paper or document, but the Trustee, in its discretion, may make such
     further inquiry or investigation into such facts or matters as it may see
     fit, and, if the Trustee shall determine to make such further inquiry or
     investigation, it shall be entitled to examine the books, records and
     premises of the Company, personally or by agent or attorney; and

          (g) the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and, except for any


                                       49

<PAGE>   59


     Affiliates of the Trustee, the Trustee shall not be responsible for any
     misconduct or negligence on the part of any agent or attorney appointed
     with due care by it hereunder.

SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities and in the Senior
Subordinated Guarantees endorsed thereon, except the Trustee's certificates of
authentication, shall be taken as the statements of the Company or the
Guarantors, as the case may be, and the Trustee assumes no responsibility for
their correctness. The Trustee makes no representations as to the validity or
sufficiency of this Indenture or of the Securities or of the Senior Subordinated
Guarantees endorsed thereon. The Trustee shall not be accountable for the use or
application by the Company of Securities or the proceeds thereof.

SECTION 605.  May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company or any Guarantor, in its individual
or any other capacity, may become the owner or pledgee of Securities and,
subject to Sections 608 and 613, may otherwise deal with the Company or any
Guarantor with the same rights it would have if it were not Trustee,
Authenticating Agent, Paying Agent, Security Registrar or such other agent.

SECTION 606.  Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company or any Guarantor, as the case may be.

SECTION 607.  Compensation and Reimbursement.

          The Company agrees

          (1) to pay to the Trustee from time to time compensation for all
     services rendered by it hereunder (which compensation shall not be limited
     by any provision of law in regard to the compensation of a trustee of an
     express trust);

          (2) except as otherwise expressly provided herein, to reimburse the
     Trustee upon its request for all reasonable expenses, disbursements and
     advances incurred or made by the Trustee in accordance with any provision
     of this Indenture (including the compensation and the reasonable expenses
     and disbursements of its agents and counsel), except any such expense,
     disbursement or advance as may be attributable to its negligence or bad
     faith; and

          (3) to indemnify the Trustee and each of its directors, officers,
     employees, agents and/or representatives for, and to hold each of them
     harmless against, any loss, liability or


                                       50

<PAGE>   60


     expense incurred without negligence or bad faith on each of their part,
     arising out of or in connection with the acceptance or administration of
     the trust or trusts hereunder, including the costs and expenses of
     defending themselves against any claim or liability in connection with the
     exercise or performance of any of the Trustee's powers or duties hereunder.

          As security for the performance of the obligations of the Company
under this Section, the Trustee shall have a lien prior to the Securities upon
all property and funds held or collected by the Trustee as such, except funds
held in trust for the payment of principal of, premium, if any, or interest, if
any, on, or any Additional Amounts with respect to, particular Securities.

          Any expenses and compensation for any services rendered by the Trustee
after the occurrence of an Event of Default specified in clause (5) or (6) of
Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

          The provisions of this Section shall survive the termination of this
Indenture.

SECTION 608.  Disqualification; Conflicting Interests.

          (a) If the Trustee has or shall acquire any conflicting interest, as
     defined in this Section, with respect to the Securities of any series, it
     shall, within 90 days after ascertaining that it has such conflicting
     interest, either eliminate such conflicting interest or resign with respect
     to the Securities of that series in the manner and with the effect
     hereinafter specified in this Article.

          (b) In the event that the Trustee shall fail to comply with the
     provisions of Subsection (a) of this Section with respect to the Securities
     of any series, the Trustee shall, within 10 days after the expiration of
     such 90-day period, transmit by mail to all Holders of Securities of that
     series, as their names and addresses appear in the Security Register,
     notice of such failure.

          (c) For the purposes of this Section, the term "conflicting interest"
     shall have the meaning specified in Section 310(b) of the Trust Indenture
     Act and the Trustee shall comply with Section 310(b) of the Trust Indenture
     Act; provided that there shall be excluded from the operation of Section
     310(b)(1) of the Trust Indenture Act with respect to the Securities of any
     series any indenture or indentures under which other securities, or
     certificates of interest or participation in other securities, of the
     Company are outstanding, if the requirements for such exclusion set forth
     in Section 310(b)(1) of the Trust Indenture Act are met. For purposes of
     the preceding sentence, the optional provision permitted by the second
     sentence of Section 310(b)(9) of the Trust Indenture Act shall be
     applicable.



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<PAGE>   61


SECTION 609.  Corporate Trustee Required; Eligibility.

          There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States of
America, any State thereof or the District of Columbia, authorized under such
laws to exercise corporate trust powers, having a combined capital and surplus
of at least $50,000,000 and subject to supervision or examination by Federal or
State (or District of Columbia) authority. If such corporation publishes reports
of condition at least annually, pursuant to law or to the requirements of said
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such corporation shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published. If at any time the Trustee shall cease to be eligible in
accordance with the provisions of this Section, it shall resign immediately in
the manner and with the effect hereinafter specified in this Article.

          The Indenture shall always have a Trustee who satisfies the
requirements of Sections 310(a)(1), 310(a)(2) and 310(a)(5) of the Trust
Indenture Act.

SECTION 610.  Resignation and Removal; Appointment of Successor.

          (a) No resignation or removal of the Trustee and no appointment of a
     successor Trustee pursuant to this Article shall become effective until the
     acceptance of appointment by the successor Trustee in accordance with the
     applicable requirements of Section 611.

          (b) The Trustee may resign at any time with respect to the Securities
     of one or more series by giving written notice thereof to the Company. If
     the instrument of acceptance by a successor Trustee required by Section 611
     shall not have been delivered to the resigning Trustee within 30 days after
     the giving of such notice of resignation, the resigning Trustee may
     petition any court of competent jurisdiction for the appointment of a
     successor Trustee with respect to the Securities of such series.

          (c) The Trustee may be removed at any time with respect to the
     Securities of any series by Act of the Holders of a majority in principal
     amount of the Outstanding Securities of such series, delivered to the
     Trustee and to the Company.

          (d) If at any time:

               (1) the Trustee shall fail to comply with Section 608(a) after
          written request therefor by the Company or by any Holder who has been
          a bona fide Holder of a Security for at least six months, or

               (2) the Trustee shall cease to be eligible under Section 609 and
          shall fail to resign after written request therefor by the Company or
          by any such Holder of Securities, or


                                       52

<PAGE>   62


               (3) the Trustee shall become incapable of acting or shall be 
          adjudged a bankrupt or insolvent or a receiver of the Trustee or of
          its property shall be appointed or any public officer shall take
          charge or control of the Trustee or of its property or affairs for the
          purpose of rehabilitation, conservation or liquidation, then, in any
          such case, (i) the Company by a Board Resolution may remove the
          Trustee with respect to all Securities, or (ii) subject to Section
          513, any Holder who has been a bona fide Holder of a Security for at
          least six months may, on behalf of himself and all others similarly
          situated, petition any court of competent jurisdiction for the removal
          of the Trustee with respect to all Securities and the appointment of a
          successor Trustee or Trustees.

          (e) If the Trustee shall resign, be removed or become incapable of
     acting, or if a vacancy shall occur in the office of Trustee for any cause,
     with respect to the Securities of one or more series, the Company, by a
     Board Resolution, shall promptly appoint a successor Trustee or Trustees
     with respect to the Securities of that or those series (it being understood
     that any such successor Trustee may be appointed with respect to the
     Securities of one or more or all of such series and that at any time there
     shall be only one Trustee with respect to the Securities of any particular
     series) and such successor Trustee or Trustees shall comply with the
     applicable requirements of Section 611. If no successor Trustee with
     respect to the Securities of any series shall have been so appointed by the
     Company and accepted appointment in the manner required by Section 611, any
     Holder who has been a bona fide Holder of a Security of such series for at
     least six months may, on behalf of himself and all others similarly
     situated, petition any court of competent jurisdiction for the appointment
     of a successor Trustee with respect to the Securities of such series.

          (f) The Company shall give notice of each resignation and each removal
     of the Trustee with respect to the Securities of any series and each
     appointment of a successor Trustee with respect to the Securities of any
     series by mailing written notice of such event by first-class mail, postage
     prepaid, to all Holders of Securities of such series as their names and
     addresses appear in the Security Register. Each notice shall include the
     name of the successor Trustee with respect to the Securities of such series
     and the address of its Corporate Trust Office.

SECTION 611.  Acceptance of Appointment by Successor.

          (a) In case of the appointment hereunder of a successor Trustee with
     respect to all Securities, every such successor Trustee so appointed shall
     execute, acknowledge and deliver to the Company, the Guarantors and to the
     retiring Trustee an instrument accepting such appointment, and thereupon
     the resignation or removal of the retiring Trustee shall become effective
     and such successor Trustee, without any further act, deed or conveyance,
     shall become vested with all the rights, powers, trusts and duties of the
     retiring Trustee; but, on the request of the Company or the successor
     Trustee, such retiring Trustee shall, upon payment of its charges, execute
     and deliver an instrument transferring to such successor Trustee all the
     rights, powers and trusts of the retiring Trustee and shall duly assign,
     transfer


                                       53

<PAGE>   63



     and deliver to such successor Trustee all property and money held by such
     retiring Trustee hereunder.

          (b) In case of the appointment hereunder of a successor Trustee with
     respect to the Securities of one or more (but not all) series, the Company,
     the Guarantors, the retiring Trustee and each successor Trustee with
     respect to the Securities of one or more series shall execute and deliver
     an indenture supplemental hereto wherein each successor Trustee shall
     accept such appointment and which (1) shall contain such provisions as
     shall be necessary or desirable to transfer and confirm to, and to vest in,
     each successor Trustee all the rights, powers, trusts and duties of the
     retiring Trustee with respect to the Securities of that or those series to
     which the appointment of such successor Trustee relates, (2) if the
     retiring Trustee is not retiring with respect to all Securities, shall
     contain such provisions as shall be deemed necessary or desirable to
     confirm that all the rights, powers, trusts and duties of the retiring
     Trustee with respect to the Securities of that or those series as to which
     the retiring Trustee is not retiring shall continue to be vested in the
     retiring Trustee and (3) shall add to or change any of the provisions of
     this Indenture as shall be necessary to provide for or facilitate the
     administration of the trusts hereunder by more than one Trustee, it being
     understood that nothing herein or in such supplemental indenture shall
     constitute such Trustees co-trustees of the same trust and that each such
     Trustee shall be trustee of a trust or trusts hereunder separate and apart
     from any trust or trusts hereunder administered by any other such Trustee;
     and upon the execution and delivery of such supplemental indenture, the
     resignation or removal of the retiring Trustee shall become effective to
     the extent provided therein and each such successor Trustee, without any
     further act, deed or conveyance, shall become vested with all the rights,
     powers, trusts and duties of the retiring Trustee with respect to the
     Securities of that or those series to which the appointment of such
     successor Trustee relates; but, on request of the Company, any Guarantor or
     any successor Trustee, such retiring Trustee shall duly assign, transfer
     and deliver to such successor Trustee all property and money held by such
     retiring Trustee hereunder with respect to the Securities of that or those
     series to which the appointment of such successor Trustee relates.

          (c) Upon request of any such successor Trustee, the Company and the
     Guarantors shall execute any and all instruments for more fully and
     certainly vesting in and confirming to such successor Trustee all such
     rights, powers and trusts referred to in paragraph (a) or (b) of this
     Section, as the case may be.

          (d) No successor Trustee shall accept its appointment unless at the
     time of such acceptance such successor Trustee shall be qualified and
     eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such


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<PAGE>   64


corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.

SECTION 613.  Preferential Collection of Claims Against Company.

          The Trustee shall comply with Section 311(a) of the Trust Indenture
Act, excluding any creditor relationship described in Section 311(b) of the
Trust Indenture Act. A Trustee who has resigned or been removed shall be subject
to Section 311(a) of the Trust Indenture Act to the extent indicated therein.

SECTION 614.  Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents which shall
be authorized to act on behalf of the Trustee to authenticate Securities issued
upon original issue and upon exchange, registration of transfer or partial
redemption or pursuant to Section 306, and Securities so authenticated and the
Senior Subordinated Guarantees endorsed thereon shall be entitled to the
benefits of this Indenture and shall be valid and obligatory for all purposes as
if authenticated by the Trustee hereunder. Wherever reference is made in this
Indenture to the authentication and delivery of Securities by the Trustee or the
Trustee's certificate of authentication, such reference shall be deemed to
include authentication and delivery on behalf of the Trustee by an
Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent. Each Authenticating Agent shall be
acceptable to the Company and shall at all times be a corporation organized and
doing business under the laws of the United States of America, any State thereof
or the District of Columbia having a combined capital and surplus of not less
than $50,000,000 or equivalent amount expressed in a foreign currency and
subject to supervision or examination by Federal or State (or District of
Columbia) authority or authority of such country. If such Authenticating Agent
publishes reports of condition at least annually, pursuant to law or to the
requirements of said supervising or examining authority, then for the purposes
of this Section, the combined capital and surplus of such Authenticating Agent
shall be deemed to be its combined capital and surplus as set forth in its most
recent report of condition so published. If at any time an Authenticating Agent
shall cease to be eligible in accordance with the provisions of this Section,
such Authenticating Agent shall resign immediately in the manner and with the
effect specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section,


                                       55

<PAGE>   65


without the execution or filing of any paper or any further act on the part of
the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall mail written notice of
such appointment by first-class mail, postage prepaid, to all Holders as their
names and addresses appear in the Security Register. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder, with
like effect as if originally named as an Authenticating Agent. No successor
Authenticating Agent shall be appointed unless eligible under the provisions of
this Section.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

          If an appointment is made pursuant to this Section, the Securities may
have endorsed thereon, in addition to the Trustee's certificate of
authentication, an alternate certificate of authentication in the following
form:

          "This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.


                                              --------------------------------,
                                                    as Trustee

                                           By
                                              --------------------------------,
                                                  as Authenticating Agent


                                           By 
                                              --------------------------------
                                                   Authorized Signatory."

          Notwithstanding any provision of this Section 614 to the contrary, if
at any time any Authenticating Agent appointed hereunder with respect to any
series of Securities shall not also be acting as the Security Registrar
hereunder with respect to any series of Securities, then, in addition to all
other duties of an Authenticating Agent hereunder, such Authenticating Agent
shall also be obligated: (i) to furnish to the Security Registrar promptly all
information necessary to enable the Security Registrar to maintain at all times
an accurate and current Security Register; and (ii) prior


                                       56

<PAGE>   66



to authenticating any Security denominated in a foreign currency, to ascertain
from the Company the units of such foreign currency that are required to be
determined by the Company pursuant to Section 302.

                                  ARTICLE SEVEN

                HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

          With respect to each series of Securities, the Company will furnish or
cause to be furnished to the Trustee:

          (a) semi-annually, not more than 15 days after each Regular Record
     Date relating to that series (or, if there is no Regular Record Date
     relating to that series, on January 1 and July 1), a list, in such form as
     the Trustee may reasonably require, of the names and addresses of the
     Holders of that series as of such dates, and

          (b) at such other times as the Trustee may request in writing, within
     30 days after the receipt by the Company of any such request, a list of
     similar form and content, such list to be dated as of a date not more than
     15 days prior to the time such list is furnished; provided, that so long as
     the Trustee is the Security Registrar, the Company shall not be required to
     furnish or cause to be furnished such a list to the Trustee. The Company
     shall otherwise comply with Section 310(a) of the Trust Indenture Act.

SECTION 702.  Preservation of Information; Communications to Holders.

          (a) The Trustee shall preserve, in as current a form as is reasonably
     practicable, the names and addresses of Holders of each series contained in
     the most recent list furnished to the Trustee as provided in Section 701
     and the names and addresses of Holders of each series received by the
     Trustee in its capacity as Security Registrar, if applicable. The Trustee
     may destroy any list furnished to it as provided in Section 701 upon
     receipt of a new list so furnished. The Trustee shall otherwise comply with
     Section 310(a) of the Trust Indenture Act.

          (b) Holders of Securities may communicate pursuant to Section 312(b)
     the Trust Indenture Act with other Holders with respect to their rights
     under this Indenture or under the Securities.

          (c) Every Holder of Securities, by receiving and holding the same,
     agrees with the Company and the Trustee that neither the Company nor the
     Trustee nor any agent of either of them shall be held accountable by reason
     of the disclosure of any such information as to the names and addresses of
     the Holders in accordance with Section 702(b), regardless of the source
     from which such information was derived, and that the Trustee shall not be
     held


                                       57

<PAGE>   67


     accountable by reason of mailing any material pursuant to a request made
     under Section 702(b). The Company, the Trustee, the Security Registrar and
     any other Person shall have the protection of Section 312(c) of the Trust
     Indenture Act.

SECTION 703.  Reports by Trustee.

          (a) Within 60 days after May 15 of each year after the execution of
     this Indenture, the Trustee shall transmit by mail to Holders a brief
     report dated as of such May 15 that complies with Section 313(a) of the
     Trust Indenture Act.

          (b) The Trustee shall comply with Section 313(b) of the Trust
     Indenture Act.

          (c) Reports pursuant to this Section shall be transmitted by mail as
     required by Sections 313(c) and 313(d) of the Trust Indenture Act:

               (1) to all Holders of Securities, as the names and addresses of
          such Holders appear in the Security Register;

               (2) to such Holders of Securities as have, within the two years
          preceding such transmissions, filed their names and addresses with the
          Trustee for that purpose; and

               (3) except in the case of reports pursuant to Subsection (b) of 
          this Section, to each Holder of a Security whose name and address is
          preserved at the time by the Trustee, as provided in Section 702(a).

          (d) A copy of each report pursuant to Subsection (a) or (b) of this
     Section 703 shall, at the time of its transmission to Holders, be filed by
     the Trustee with each stock exchange upon which any Securities are listed,
     with the Commission and with the Company. The Company will notify the
     Trustee when any Securities are listed on any stock exchange.

SECTION 704.  Reports by Company and the Guarantors.

          The Company and each of the Guarantors shall file with the Trustee,
within 15 days after the Company is required to file the same with the
Commission, copies of the annual reports and of the information, documents and
other reports (or copies of such portions of any of the foregoing as the
Commission may from time to time by rules and regulations prescribe) which the
Company or any Guarantor may be required to file with the Commission pursuant to
Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended,
and shall otherwise comply with Section 314(a) of the Trust Indenture Act.


                                       58

<PAGE>   68


                                  ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, unless:

          (1) the Person formed by such consolidation or into which the Company
     is merged or the Person which acquires by conveyance or transfer, or which
     leases, the properties and assets of the Company substantially as an
     entirety shall be a corporation, partnership or trust and shall expressly
     assume, by an indenture supplemental hereto, executed and delivered to the
     Trustee, in form satisfactory to the Trustee, the due and punctual payment
     of the principal of (and premium, if any) and interest on and any
     Additional Amounts with respect to all the Securities and the performance
     of every covenant of this Indenture on the part of the Company to be
     performed or observed;

          (2) immediately after giving effect to such transaction, no Event of
     Default, and no event, act or condition which, after notice or lapse of
     time or both, would become an Event of Default, shall have happened and be
     continuing; and

          (3) the Company shall have delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that such
     consolidation, merger, conveyance, transfer or lease and, if a supplemental
     indenture is required in connection with such transaction, such
     supplemental indenture comply with this Article and that all conditions
     precedent herein provided for relating to such transaction have been
     complied with.

SECTION 802.  Successor Person Substituted.

          Upon any consolidation by the Company with or merger by the Company
into any other Person or any conveyance, transfer or lease of the properties and
assets of the Company substantially as an entirety in accordance with Section
801, the successor Person formed by such consolidation or into which the Company
is merged or to which such conveyance, transfer or lease is made shall succeed
to, and be substituted for, and may exercise every right and power of, the
Company under this Indenture with the same effect as if such successor Person
had been named as the Company herein, and thereafter, except in the case of such
lease, the predecessor Person shall be relieved of all obligations and covenants
under this Indenture and the Securities.


                                       59

<PAGE>   69


                                  ARTICLE NINE

                             SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders.

          Without the consent of any Holders, the Company and the Guarantors,
when authorized by a Board Resolution, and the Trustee, at any time and from
time to time, may enter into one or more indentures supplemental hereto, in form
satisfactory to the Trustee, for any of the following purposes:

          (1) to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company herein
     and in the Securities; or

          (2) to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to be
     for the benefit of less than all series of Securities, stating that such
     covenants are expressly being included solely for the benefit of such
     series), to convey, transfer, assign, mortgage or pledge any property to or
     with the Trustee or otherwise secure any series of the Securities or to
     surrender any right or power herein conferred upon the Company; or

          (3) to add any additional Events of Default with respect to all or any
     series of the Securities (and, if such Event of Default is applicable to
     less than all series of Securities, specifying the series to which such
     Event of Default is applicable); or

          (4) to change or eliminate any of the provisions of this Indenture,
     provided that any such change or elimination shall become effective only
     when there is no Security Outstanding of any series created prior to the
     execution of such supplemental indenture which is adversely affected by
     such change in or elimination of such provision; or

          (5) to establish the form or terms of Securities of any series as
     permitted by Sections 201 and 301; or

          (6) to supplement any of the provisions of this Indenture to such
     extent as shall be necessary to permit or facilitate the defeasance and
     discharge of any series of Securities pursuant to Section 401; provided,
     however, that any such action shall not adversely affect the interest of
     the Holders of Securities of such series or any other series of Securities
     in any material respect; or

          (7) to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this Indenture
     as shall be necessary to provide for or facilitate the


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     administration of the trusts hereunder by more than one Trustee, pursuant
     to the requirements of Section 611(b); or

          (8) to cure any ambiguity, to correct or supplement any provision
     herein which may be defective or inconsistent with any other provision
     herein, or to make any other provisions with respect to matters or
     questions arising under this Indenture, provided such other provisions as
     may be made shall not adversely affect the interests of the Holders of
     Securities of any series in any material respect; or

          (9) to add new Guarantors pursuant to Article Fourteen.

SECTION 902.  Supplemental Indentures With Consent of Holders.

          With the consent of the Holders of a majority in principal amount of
the Outstanding Securities of all series affected by such supplemental indenture
(acting as one class), by Act of said Holders delivered to the Company and the
Trustee, the Company and the Guarantors, when authorized by a Board Resolution,
and the Trustee may enter into an indenture or indentures supplemental hereto
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or of modifying in any
manner the rights of the Holders of Securities of such series under this
Indenture; provided, however, that no such supplemental indenture shall, without
the consent of the Holder of each Outstanding Security affected thereby,

          (1) change the Stated Maturity of the principal of, or any installment
     of principal of or interest on, any Security, or reduce the principal
     amount thereof or the rate of interest thereon, any Additional Amounts with
     respect thereto or any premium payable upon the redemption thereof, or
     change any obligation of the Company to pay Additional Amounts (except as
     contemplated by Section 801(1) and permitted by Section 901(1)), or reduce
     the amount of the principal of an Original Issue Discount Security that
     would be due and payable upon a declaration of acceleration of the Maturity
     thereof pursuant to Section 502, or change any Place of Payment where, or
     the coin or currency or currencies (including composite currencies) in
     which, any Security or any premium or any interest thereon or Additional
     Amounts with respect thereto is payable, or impair the right to institute
     suit for the enforcement of any such payment on or after the Stated
     Maturity thereof (or, in the case of redemption, on or after the Redemption
     Date) or modify the provisions of this Indenture with respect to the
     subordination of any Security in a manner adverse to the Holder thereof, or

          (2) reduce the percentage in principal amount of Outstanding
     Securities, the consent of whose Holders is required for any such
     supplemental indenture, or the consent of whose Holders is required for any
     waiver (of compliance with certain provisions of this Indenture or certain
     defaults hereunder and their consequences) provided for in this Indenture,
     or


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          (3) modify any of the provisions of this Section, Section 512 or
     Section 1006, except to increase any such percentage or to provide with
     respect to any particular series the right to condition the effectiveness
     of any supplemental indenture as to that series on the consent of the
     Holders of a specified percentage of the aggregate principal amount of
     Outstanding Securities of such series (which provision may be made pursuant
     to Section 301 without the consent of any Holder) or to provide that
     certain other provisions of this Indenture cannot be modified or waived
     without the consent of the Holder of each Outstanding Security affected
     thereby, provided, however, that this clause shall not be deemed to require
     the consent of any Holder with respect to changes in the references to "the
     Trustee" and concomitant changes in this Section and Section 1006, or the
     deletion of this proviso, in accordance with the requirements of Sections
     611(b) and 901(7), or

          (4) modify the provisions in Article Thirteen of this Indenture with
     respect to the subordination of Outstanding Securities of any series in a
     manner adverse to the Holders thereof.

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such covenant
or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

          It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

SECTION 903.  Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 601) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties, immunities or liabilities under this Indenture or
otherwise.

SECTION 904.  Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.


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SECTION 905.  Conformity With Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.  Reference in Securities to Supplemental Indentures.

          Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

                                   ARTICLE TEN

                                    COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of (and premium,
if any), interest on and any Additional Amounts with respect to the Securities
of that series in accordance with the terms of the Securities and this
Indenture.

SECTION 1002.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange and where notices and demands to or
upon the Company or any Guarantor in respect of the Securities or the Senior
Subordinated Guarantees of that series and this Indenture may be served. The
Company will give prompt written notice to the Trustee of the location, and any
change in the location, of such office or agency. If at any time the Company
shall fail to maintain any such required office or agency or shall fail to
furnish the Trustee with the address thereof, such presentations, surrenders,
notices and demands may be made or served at the Corporate Trust Office of the
Trustee.

          The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes and may from time to time rescind
such designations; provided, however, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in each Place of Payment for Securities of any series for such
purposes. The


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Company will give prompt written notice to the Trustee of any such designation
or rescission and of any change in the location of any such other office or
agency.

SECTION 1003.  Money for Securities Payments to be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on or any Additional Amounts with
respect to any of the Securities of that series, segregate and hold in trust for
the benefit of the Persons entitled thereto a sum sufficient to pay the
principal (and premium, if any) or interest or any Additional Amounts so
becoming due until such sums shall be paid to such Persons or otherwise disposed
of as herein provided and will promptly notify the Trustee of its action or
failure so to act.

          Whenever the Company shall have one or more Paying Agents for any
series of Securities, the Company will, on or before each due date of the
principal of (and premium, if any) or interest on any Securities of that series,
deposit with a Paying Agent a sum sufficient to pay the principal (and premium,
if any) or interest so becoming due, such sum to be held in trust for the
benefit of the Persons entitled to such principal, premium or interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

          The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will:

          (1) hold all sums held by it for the payment of the principal of (and
     premium, if any), interest on or any Additional Amounts with respect to
     Securities of that series in trust for the benefit of the Persons entitled
     thereto until such sums shall be paid to such Persons or otherwise disposed
     of as herein provided;

          (2) give the Trustee notice of any default by the Company (or any
     other obligor upon the Securities of that series) in the making of any
     payment of principal (and premium, if any), interest on or any Additional
     Amounts with respect to the Securities of that series; and

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

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


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          Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on or any Additional Amounts with respect to any Security of
any series and remaining unclaimed for three years after such principal (and
premium, if any) or interest or Additional Amounts have become due and payable
shall, unless otherwise required by mandatory provisions of applicable escheat,
or abandoned or unclaimed property law, be paid to the Company on Company
Request, or (if then held by the Company) shall be discharged from such trust;
and the Holder of such Security shall thereafter, as an unsecured general
creditor, look only to the Company for payment thereof, and all liability of the
Trustee or such Paying Agent with respect to such trust money, and all liability
of the Company as trustee thereof, shall thereupon cease; provided, however,
that the Trustee or such Paying Agent, before being required to make any such
repayment, may at the expense of the Company cause to be published once, in an
Authorized Newspaper in The Borough of Manhattan, The City of New York and in
such other Authorized Newspapers as the Trustee shall deem appropriate, notice
that such money remains unclaimed and that, after a date specified therein,
which shall not be less than 30 days from the date of such publication, any
unclaimed balance of such money then remaining will, unless otherwise required
by mandatory provisions of applicable escheat, or abandoned or unclaimed
property law, be repaid to the Company.

SECTION 1004.  Existence.

          Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence.

SECTION 1005.  Statement by Officers as to Default.

          The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year of the Company ending after the date hereof so long as any
Security is outstanding hereunder, an Officers' Certificate, complying with
Section 314(a) of the Trust Indenture Act, stating that a review of the
activities of the Company during such year and of performance under this
Indenture has been made under the supervision of the signers thereof and whether
or not to the best of their knowledge, based upon such review, the Company and
each Guarantor is not in default in the performance, observance or fulfillment
of any of their respective covenants and other obligations under this Indenture,
and if the Company or any Guarantor shall be in default, specifying each such
default known to them and the nature and status thereof. One of the officers
signing the Officers' Certificate delivered pursuant to this Section 1005 shall
be the principal executive, financial or accounting officer of the Company.

          For purposes of this Section, such compliance shall be determined
without regard to any period of grace or requirement of notice provided under
this Indenture.

SECTION 1006.  Waiver of Certain Covenants.

          The Company or any Guarantor may omit in any particular instance to
comply with any covenant or condition set forth in Section 1004, or any covenant
added for the benefit of any


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<PAGE>   75


series of Securities as contemplated by Section 301 (unless otherwise specified
pursuant to Section 301) if before or after the time for such compliance the
Holders of a majority in principal amount of the Outstanding Securities of all
series affected by such omission (acting as one class) shall, by Act of such
Holders, either waive such compliance in such instance or generally waive
compliance with such covenant or condition, but no such waiver shall extend to
or affect such covenant or condition except to the extent so expressly waived,
and, until such waiver shall become effective, the obligations of the Company
and each of the Guarantors and the duties of the Trustee in respect of any such
covenant or condition shall remain in full force and effect.

SECTION 1007.  Additional Amounts.

          If the Securities of a series expressly provide for the payment of
Additional Amounts, the Company will pay to the Holder of any Security of such
series Additional Amounts as expressly provided therein. Whenever in this
Indenture there is mentioned, in any context, the payment of the principal of or
any premium or interest on, or in respect of, any Security of any series or the
net proceeds received from the sale or exchange of any Security of any series,
such mention shall be deemed to include mention of the payment of Additional
Amounts provided for in this Section to the extent that, in such context,
Additional Amounts are, were or would be payable in respect thereof pursuant to
the provisions of this Section and express mention of the payment of Additional
Amounts (if applicable) in any provisions hereof shall not be construed as
excluding Additional Amounts in those provisions hereof where such express
mention is not made.

          If the Securities of a series provide for the payment of Additional
Amounts, at least 10 days prior to the first Interest Payment Date with respect
to that series of Securities (or if the Securities of that series will not bear
interest prior to Maturity, the first day on which a payment of principal and
any premium is made), and at least 10 days prior to each date of payment of
principal and any premium or interest if there has been any change with respect
to the matters set forth in the below-mentioned Officers' Certificate, the
Company shall furnish the Trustee and the Company's principal Paying Agent or
Paying Agents, if other than the Trustee, with an Officers' Certificate
instructing the Trustee and such Paying Agent or Paying Agents whether such
payment of principal of and any premium or interest on the Securities of that
series shall be made to Holders of Securities of that series who are United
States Aliens without withholding for or on account of any tax, assessment or
other governmental charge described in the Securities of that series. If any
such withholding shall be required, then such Officers' Certificate shall
specify by country the amount, if any, required to be withheld on such payments
to such Holders of Securities and the Company will pay to such Paying Agent the
Additional Amounts required by this Section. The Company covenants to indemnify
the Trustee and any Paying Agent for, and to hold them harmless against any
loss, liability or expense reasonably incurred without negligence or bad faith
on their part arising out of or in connection with actions taken or omitted by
any of them in reliance on any Officers' Certificate furnished pursuant to this
Section 1007.


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                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

          Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any series)
in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

          Unless otherwise provided with respect to the Securities of a series
as contemplated by Section 301, the election of the Company to redeem any
Securities shall be evidenced by a Board Resolution. In case of any redemption
at the election of the Company of less than all the Securities of any series,
the Company shall, a reasonable period prior to the Redemption Date fixed by the
Company (unless a shorter notice shall be satisfactory to the Trustee), notify
the Trustee of such Redemption Date and of the principal amount of Securities of
such series to be redeemed. In the case of any redemption of Securities prior to
the expiration of any restriction on such redemption provided in the terms of
such Securities or elsewhere in this Indenture, the Company shall furnish the
Trustee with an Officers' Certificate evidencing compliance with such
restriction.

SECTION 1103.  Selection by Trustee of Securities to be Redeemed.

          If less than all the Securities of any series are to be redeemed, the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of portions (equal to the minimum authorized denomination for
Securities of that series or any integral multiple thereof) of the principal
amount of Securities of such series of a denomination larger than the minimum
authorized denomination for Securities of that series or of the principal amount
of global Securities of such series.

          The Trustee shall promptly notify the Company and the Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

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


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SECTION 1104.  Notice of Redemption.

          Notice of redemption shall be given in the manner provided in Section
107 to each Holder of Securities to be redeemed not less than 30 nor more than
60 days prior to the Redemption Date.

          All notices of redemption shall state:

          (1) the Redemption Date,

          (2) the Redemption Price,

          (3) if less than all the Outstanding Securities of any series are to
     be redeemed, the identification (and, in the case of partial redemption,
     the principal amounts) of the particular Securities to be redeemed,

          (4) that on the Redemption Date the Redemption Price will become due
     and payable upon each such Security to be redeemed and, if applicable, that
     interest thereon will cease to accrue on and after said date,

          (5) the place or places where such Securities are to be surrendered
     for payment of the Redemption Price,

          (6) that the redemption is for a sinking fund, if such is the case,
     and

          (7) the "CUSIP" number, if applicable.

          A notice of redemption as contemplated by Section 107 need not
identify particular Securities to be redeemed. Notice of redemption of
Securities to be redeemed at the election of the Company shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

          On or before [TIME], [CITY, STATE] time, on any Redemption Date, the
Company shall deposit with the Trustee or with a Paying Agent (or, if the
Company is acting as its own Paying Agent, segregate and hold in trust as
provided in Section 1003) an amount of money sufficient to pay the Redemption
Price of, and (except if the Redemption Date shall be an Interest Payment Date)
accrued interest on, and any Additional Amounts with respect to, all the
Securities which are to be redeemed on that date.

SECTION 1106.  Securities Payable on Redemption Date.


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<PAGE>   78


          Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption Price, together with accrued interest
(and any Additional Amounts) to the Redemption Date; provided, however, that
installments of interest whose Stated Maturity is on or prior to the Redemption
Date shall be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal (and premium, if any) shall,
until paid, bear interest from the Redemption Date at the rate prescribed
therefor in the Security or, in the case of Original Issue Discount Securities,
the Securities' Yield to Maturity.

SECTION 1107.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Company or the Trustee so requires,
due endorsement by, or a written instrument of transfer in form satisfactory to
the Company and the Trustee duly executed by, the Holder thereof or his attorney
duly authorized in writing), and the Company shall execute, and the Trustee
shall authenticate and deliver to the Holder of such Security without service
charge, a new Security or Securities (each with a Senior Subordinated Guarantee
of each Guarantor executed by each such Guarantor and endorsed thereon) of the
same series and Stated Maturity, of any authorized denomination as requested by
such Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.

SECTION 1108.  Purchase of Securities.

          Unless otherwise specified as contemplated by Section 301, the Company
and any Affiliate of the Company may at any time purchase or otherwise acquire
Securities in the open market or by private agreement. Such acquisition shall
not operate as or be deemed for any purpose to be a redemption of the
indebtedness represented by such Securities. Any Securities purchased or
acquired by the Company may be delivered to the Trustee and, upon such delivery,
the indebtedness represented thereby shall be deemed to be satisfied. Section
309 shall apply to all Securities so delivered.


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                                 ARTICLE TWELVE

                                  SINKING FUNDS

SECTION 1201.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

          The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment", and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment". Unless otherwise provided by the terms of Securities of
any series, the cash amount of any sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

          The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption), and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to the Securities of such series required to be made
pursuant to the terms of such Securities as provided for by the terms of such
series; provided that such Securities have not been previously so credited. Such
Securities shall be received and credited for such purpose by the Trustee at the
Redemption Price specified in such Securities for redemption through operation
of the sinking fund and the amount of such sinking payment shall be reduced
accordingly.

SECTION 1203.  Redemption of Securities for Sinking Fund.

          Not less than 45 days prior (unless a shorter period shall be
satisfactory to the Trustee) to each sinking fund payment date for any series of
Securities, the Company will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivery of or by crediting Securities of that series pursuant to
Section 1202 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 30 days before each such sinking fund payment date the
Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the
redemption thereof to be given in the name of and at the expense of the Company
in the manner provided in Section 1104. Such notice having


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been duly given, the redemption of such Securities shall be made upon the terms
and in the manner stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN

                                  SUBORDINATION

SECTION 1301.  Securities Subordinated to Senior Indebtedness.

          The Company and each Holder of a Security, by his acceptance thereof,
agree that (i) (a) the payment of the principal of, premium (if any) and
interest on and any Additional Amounts with respect to each and all the
Securities and (b) any other payment in respect of the Securities, including on
account of the acquisition or redemption of Securities by the Company, is
subordinated, to the extent and in the manner provided in this Article Thirteen,
to the prior payment in full of all Senior Indebtedness of the Company, whether
outstanding at the date of this Indenture or thereafter created, incurred,
assumed or guaranteed, and that these subordination provisions are for the
benefit of the holders of Senior Indebtedness; (ii) the payment of each
Guarantor's obligations in respect of its Senior Subordinated Guarantee is
hereby expressly made subordinated and subject in right of payment to the prior
payment in full of all obligations of such Guarantor under all Senior
Indebtedness of such Guarantor.

          This Article Thirteen shall constitute a continuing offer to all
Persons who, in reliance upon such provisions, become holders of, or continue to
hold, Senior Indebtedness, and such provisions are made for the benefit of the
holders of Senior Indebtedness, and such holders are made obligees hereunder and
any one or more of them may enforce such provisions.

SECTION 1302.  No Payment on Securities in Certain Circumstances.

          (a) No payment shall be made by or on behalf of the Company or any
Guarantor on account of the principal of, premium (if any) or interest on or any
Additional Amounts with respect to the Securities of any series or to acquire
any of such Securities (including any repurchases of such Securities pursuant to
the provisions hereof or thereof at the option of the Holder of such Securities)
for cash or property (other than Junior securities of the Company or the
Guarantor, as applicable), or on account of any redemption provisions of such
Securities, in the event of default in payment of any principal of, premium (if
any) or interest on any Senior Indebtedness of the Company or the Guarantor, as
applicable, when the same becomes due and payable, whether at maturity or at a
date fixed for prepayment or by declaration or otherwise (a "Payment Default"),
unless and until such Payment Default has been cured or waived or otherwise has
ceased to exist.

          (b) No payment shall be made by or on behalf of the Company or any
Guarantor on account of the principal of, premium (if any) or interest on or any
Additional Amounts with respect to the Securities of any series or to acquire
any of such Securities (including any repurchases of such Securities pursuant to
the provisions hereof or thereof at the option of the Holder of such Securities)
for cash or property (other than Junior securities of the Company or the
Guarantor, as


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<PAGE>   81



applicable), or on account of any redemption provisions of such Securities, in
the event of any event of default (other than a Payment Default) with respect to
any Designated Senior Indebtedness permitting the holders of such Designated
Senior Indebtedness (or a trustee or other representative on behalf of the
holders thereof) to declare such Designated Senior Indebtedness due and payable
prior to the date on which it would otherwise have become due and payable, upon
written notice thereof to the Company or the Guarantor, as applicable, and the
Trustee by any holders of Designated Senior Indebtedness (or a trustee or other
representative on behalf of the holders thereof) (the "Payment Notice"), unless
and until such event of default shall have been cured or waived or otherwise has
ceased to exist; provided, that such payments may not be prevented pursuant to
this Section 1302(b) for more than 179 days after an applicable Payment Notice
has been received by the Trustee unless the Designated Senior Indebtedness in
respect of which such event of default exists has been declared due and payable
in its entirety, in which case no such payment may be made until such
acceleration has been rescinded or annulled or such Designated Senior
Indebtedness has been paid in full. No event of default that existed or was
continuing on the date of any Payment Notice (whether or not such event of
default is on the same issue of Designated Senior Indebtedness) may be made the
basis for the giving of a second Payment Notice, and only one such Payment
Notice may be given in any 365-day period.

          (c) In furtherance of the provisions of Section 1301, in the event
that, notwithstanding the foregoing provisions of this Section 1302, any payment
or distribution of assets of the Company or any Guarantor (other than Junior
securities of the Company or the Guarantor, as applicable) shall be received by
the Trustee or the Holders of Securities of any series at a time when such
payment or distribution was prohibited by the provisions of this Section 1302,
then, unless such payment or distribution is no longer prohibited by this
Section 1302, such payment or distribution (subject to the provisions of Section
1307) shall be received and held in trust by the Trustee or such Holder or
Paying Agent for the benefit of the holders of Senior Indebtedness of the
Company or the Guarantor, as applicable, and shall be paid or delivered by the
Trustee or such Holders or such Paying Agent, as the case may be, to the holders
of Senior Indebtedness of the Company or the Guarantor, as applicable, remaining
unpaid or unprovided for or their representative or representatives, or to the
trustee or trustees under any indenture pursuant to which any instruments
evidencing such Senior Indebtedness of the Company or the Guarantor, as
applicable, may have been issued, ratably, according to the aggregate amounts
remaining unpaid on account of such Senior Indebtedness of the Company or the
Guarantor, as applicable, held or represented by each, for application to the
payment of all Senior Indebtedness in full after giving effect to all concurrent
payments and distributions to or for the holders of such Senior Indebtedness.

SECTION 1303.  Securities Subordinated to Prior Payment of All Senior 
               Indebtedness on Dissolution, Liquidation or Reorganization.

          Upon any distribution of assets of the Company or any Guarantor, as
applicable, or upon any dissolution, winding up, total or partial liquidation or
reorganization of the Company or any Guarantor, as applicable, whether voluntary
or involuntary, in bankruptcy, insolvency, receivership or similar proceeding or
upon assignment for the benefit of creditors:


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<PAGE>   82


          (a) the holders of all Senior Indebtedness of the Company or the
     Guarantor, as applicable, shall first be entitled to receive payments in
     full, in cash, before the Holders of Securities of any series are entitled
     to receive any payment on account of the principal of, premium (if any) or
     interest on or any Additional Amounts with respect to such Securities
     (other than Junior securities of the Company or the Guarantor, as
     applicable);

          (b) any payment or distribution of assets of the Company or the
     Guarantor, as applicable, of any kind or character, whether in cash,
     property or securities (other than Junior securities of the Company or the
     Guarantor, as applicable), to which the Holders of Securities of any series
     or the Trustee on behalf of such Holders would be entitled, except for the
     provisions of this Article Thirteen, shall be paid by the liquidating
     trustee or agent or other Person making such a payment or distribution
     directly to the holders of such Senior Indebtedness or their
     representative, ratably according to the respective amounts of Senior
     Indebtedness held or represented by each, to the extent necessary to make
     payment in full of all such Senior Indebtedness remaining unpaid after
     giving effect to all concurrent payments and distributions to the holders
     of such Senior Indebtedness; and

          (c) in the event that, notwithstanding the foregoing, any payment or
     distribution of assets of the Company or the Guarantor, as applicable, of
     any kind or character, whether in cash, property or securities (other than
     Junior securities of the Company), shall be received by the Trustee or the
     Holders of Securities of any series or any Paying Agent (or, if the Company
     or any Affiliate of the Company is acting as its own Paying Agent, money
     for any such payment or distribution shall be segregated or held in trust)
     on account of the principal of, premium (if any) or interest on or any
     Additional Amounts with respect to the Securities of such series before all
     Senior Indebtedness of the Company or the Guarantor, as applicable, is paid
     in full, in cash, such payment or distribution (subject to the provisions
     of Section 1307) shall be received and held in trust by the Trustee or such
     Holder or Paying Agent for the benefit of the holders of such Senior
     Indebtedness, or their respective representatives, ratably according to the
     respective amounts of such Senior Indebtedness held or represented by each,
     to the extent necessary to make payment as provided herein of all such
     Senior Indebtedness remaining unpaid after giving effect to all concurrent
     payments and distributions and all provisions therefor to or for the
     holders of such Senior Indebtedness, but only to the extent that as to any
     holder of such Senior Indebtedness, as promptly as practical following
     notice from the Trustee to the holders of such Senior Indebtedness that
     such prohibited payment has been received by the Trustee, Holder(s) or
     Paying Agent (or has been segregated as provided above), such holder (or a
     representative therefor) notifies the Trustee of the amounts then due and
     owing on such Senior Indebtedness, if any, held by such holder and only the
     amounts specified in such notices to the Trustee shall be paid to the
     holders of such Senior Indebtedness.

SECTION 1304.  Subrogation to Rights of Holders of Senior Indebtedness.

          Subject to the payment in full of all Senior Indebtedness of the
Company or any Guarantor as provided herein, the Holders of the Securities shall
be subrogated (to the extent of the


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<PAGE>   83



payments or distributions made to the holders of such Senior Indebtedness
pursuant to the provisions of this Article) to the rights of the holders of such
Senior Indebtedness to receive payments or distributions of assets of the
Company applicable to the Senior Indebtedness until all amounts owing on the
Securities shall be paid in full. For the purpose of such subrogation, no such
payments or distributions to the holders of such Senior Indebtedness by the
Company or any Guarantor, or by or on behalf of the Holders of the Securities by
virtue of this Article Thirteen, which otherwise would have been made to such
Holders shall, as between the Company and such Holders, be deemed to be payment
by the Company or on account of such Senior Indebtedness, it being understood
that the provisions of this Article Thirteen are and are intended solely for the
purpose of defining the relative rights of the Holders of the Securities, on the
one hand, and the holders of such Senior Indebtedness, on the other hand.

          If any payment or distribution to which the Holders of the Securities
would otherwise have been entitled but for the provisions of this Article
Thirteen shall have been applied, pursuant to the provisions of this Article
Thirteen, to the payment of amounts payable under Senior Indebtedness of the
Company, then such Holders shall be entitled to receive from the holders of such
Senior Indebtedness any payments or distributions received by such holders of
Senior Indebtedness in excess of the amount sufficient to pay all amounts
payable under or in respect of such Senior Indebtedness in full.

SECTION 1305.  Obligations of the Company and the Guarantors Unconditional.

          Nothing contained in this Article Thirteen or elsewhere in this
Indenture or in the Securities is intended to or shall impair, as among the
Company or any Guarantor, as applicable, and the Holders of the Securities of
any series, the obligation of the Company or any Guarantor, as applicable, which
is absolute and unconditional, to pay to such Holders the principal of, premium
(if any) and interest on and any Additional Amounts with respect to the
Securities of such series as and when the same shall become due and payable in
accordance with their terms, or is intended to or shall affect the relative
rights of such Holders and creditors of the Company or any Guarantor, as
applicable, other than the holders of the Senior Indebtedness, nor shall
anything herein or therein prevent the Trustee or any Holder from exercising all
remedies otherwise permitted by applicable law upon default under this
Indenture, subject to the rights, if any, under this Article Thirteen, of the
holders of Senior Indebtedness in respect of cash, property or securities of the
Company or any Guarantor, as applicable, received upon the exercise of any such
remedy. Notwithstanding anything to the contrary in this Article Thirteen or
elsewhere in this Indenture or in the Securities, upon any distribution of
assets of the Company or any Guarantor, as applicable, referred to in this
Article Thirteen, the Trustee, subject to the provisions of Sections 601 and
603, and the Holders of the Securities shall be entitled to rely upon any order
or decree made by any court of competent jurisdiction in which such dissolution,
winding up, liquidation or reorganization proceedings are pending, or a
certificate of the liquidating trustee or agent or other Person making any
distribution to the Trustee or to such Holders for the purpose of ascertaining
the Persons entitled to participate in such distribution, the holders of the
Senior Indebtedness and other Indebtedness of the Company or any Guarantor, as
applicable, the amount thereof or payable thereon, the amount or amounts paid


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or distributed thereon and all other facts pertinent thereto or to this Article
Thirteen so long as such court has been apprised of the provisions of, or the
order, decree or certificate makes reference to, the provisions of this Article
Thirteen.

SECTION 1306.  Trustee Entitled to Assume Payments Not Prohibited in Absence of
               Notice.

          The Trustee shall not at any time be charged with knowledge of the
existence of any facts that would prohibit the making of any payment to or by
the Trustee unless and until a Responsible Officer of the Trustee or any Paying
Agent shall have received, no later than two Business Days prior to such
payment, written notice thereof from the Company or from any Guarantor or from
one or more holders of Senior Indebtedness or from any representative therefor
and, prior to the receipt of any such written notice, the Trustee, subject to
the provisions of Sections 601 and 603, shall be entitled in all respects
conclusively to assume that no such fact exists.

SECTION 1307.  Application by Trustee of Amounts Deposited with It.

          Amounts deposited in trust with the Trustee pursuant to and in
accordance with Article Four shall be for the sole benefit of Holders of the
Securities of series for the benefit of which such amounts were deposited, and,
to the extent allocated for the payment of Securities of such series, shall not
be subject to the subordination provisions of this Article Thirteen. Otherwise,
any deposit of assets with the Trustee or the Paying Agent (whether or not in
trust) for the payment of principal of, premium (if any) or interest on or any
Additional Amounts with respect to any Securities shall be subject to the
provisions of Sections 1301, 1302, 1303 and 1304; provided that if prior to two
Business Days preceding the date on which by the terms of this Indenture any
such assets may become distributable for any purpose (including without
limitation, the payment of either principal of, premium (if any) or interest on
or any Additional Amounts with respect to any Security), the Trustee or such
Paying Agent shall not have received with respect to such assets the written
notice provided for in Section 1306, then the Trustee or such Paying Agent shall
have full power and authority to receive such assets and to apply the same to
the purpose for which they were received, and shall not be affected by any
notice to the contrary that may be received by it on or after such date; and
provided further that nothing contained in this Article Thirteen shall prevent
the Company from making, or the Trustee from receiving or applying, any payment
in connection with the redemption of Securities if the first publication of
notice of such redemption (whether by mail or otherwise in accordance with this
Indenture) has been made, and the Trustee has received such payment from the
Company, prior to the occurrence of any of the contingencies specified in
Section 1302 or 1303.

SECTION 1308.  Subordination Rights Not Impaired by Acts or Omissions of the
               Company, the Guarantors or Holders of Senior Indebtedness.

          No right of any present or future holders of any Senior Indebtedness
to enforce subordination provisions contained in this Article Thirteen shall at
any time in any way be prejudiced or impaired by any act or failure to act on
the part of the Company or any Guarantor or by any act or failure to act, in
good faith, by any such holder, or by any noncompliance by the


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<PAGE>   85



Company or any Guarantor with the terms of this Indenture, regardless of any
knowledge thereof that any such holder may have or be otherwise charged with.
The holders of Senior Indebtedness may extend, renew, modify or amend the terms
of the Senior Indebtedness or any security therefor and release, sell or
exchange such security and otherwise deal freely with the Company or any
Guarantor, all without affecting the liabilities and obligations of the parties
to this Indenture or the Holders of the Securities.

SECTION 1309.  Trustee to Effectuate Subordination of Securities.

          Each Holder of a Security by his acceptance thereof authorizes and
expressly directs the Trustee on his behalf to take such action as may be
necessary or appropriate to effectuate the subordination provisions contained in
this Article Thirteen and to protect the rights of the Holders of the Securities
pursuant to this Indenture, and appoints the Trustee his attorney-in-fact for
such purpose, including, in the event of any dissolution, winding up,
liquidation or reorganization of the Company (whether in bankruptcy, insolvency
or receivership proceedings or upon an assignment for the benefit of creditors
of the Company), the filing of a claim for the unpaid balance of his Securities
in the form required in said proceedings and cause said claim to be approved. If
the Trustee does not file a proper claim or proof of debt in the form required
in such proceeding prior to 30 days before the expiration of the time to file
such claim or claims, then the holders of the Senior Indebtedness or their
representative is hereby authorized to have the right to file and is hereby
authorized to file an appropriate claim for and on behalf of the Holders of said
Securities. Nothing herein contained shall be deemed to authorize the Trustee or
the holders of Senior Indebtedness or their representative to authorize or
consent to or accept or adopt on behalf of any Holder of Securities any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof, or to authorize the Trustee or the holders
of Senior Indebtedness or their representative to vote in respect of the claim
of any Holder of the Securities in any such proceeding.

SECTION 1310.  Right of Trustee to Hold Senior Indebtedness.

          The Trustee in its individual capacity shall be entitled to all of the
rights set forth in this Article Thirteen in respect of any Senior Indebtedness
at any time held by it to the same extent as any other holder of Senior
Indebtedness, and nothing in this Indenture shall be construed to deprive the
Trustee of any of its rights as such holder.

SECTION 1311.  Article Thirteen Not to Prevent Events of Default.

          The failure to make a payment on account of principal of or premium
(if any) or interest on the Securities by reason of any provision of this
Article Thirteen shall not be construed as preventing the occurrence of a
Default or an Event of Default under Section 501 or in any way prevent the
Holders of the Securities from exercising any right hereunder other than the
right to receive payment on the Securities.



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<PAGE>   86



SECTION 1312.  No Fiduciary Duty of Trustee to Holders of Senior Indebtedness.

          The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Indebtedness, and shall not be liable to any such holders
(other than for its willful misconduct or negligence) if it shall in good faith
mistakenly pay over or distribute to the Holders of the Securities or the
Company or any Guarantor or any other Person, cash, property or securities to
which any holders of Senior Indebtedness shall be entitled by virtue of this
Article Thirteen or otherwise. Nothing in this Section 1312 shall affect the
obligation of any other such Person to hold such payment for the benefit of, and
to pay such payment over to, the holders of Senior Indebtedness or their
representative.

SECTION 1313.  Article Applicable to Paying Agent.

          In case at any time any Payment Agent other than the Trustee shall
have been appointed by the Company and be then acting hereunder, the term
"Trustee" as used in this Article Thirteen shall in such case (unless the
context shall otherwise require) be construed as extending to and including such
Payment Agent within its meaning as fully for all intents and purposes as if
such Paying Agent were named in this Article in addition to or in place of the
Trustee; provided, however, that this Section 1313 shall not apply to the
Company or any Affiliate of the Company if it or such Affiliate acts as Paying
Agent.


                                ARTICLE FOURTEEN

                        MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called.

          A meeting of Holders of Securities of any or all series may be called
at any time and from time to time pursuant to this Article to make, give or take
any request, demand, authorization, direction, notice, consent, waiver or other
action provided by this Indenture to be made, given or taken by Holders of
Securities of such series.

SECTION 1402.  Call, Notice and Place of Meetings.

          (a) The Trustee may at any time call a meeting of Holders of
Securities of any series for any purpose specified in Section 1401, to be held
at such time and at such place in [CITY, STATE], or in any other location, as
the Trustee shall determine. Notice of every meeting of Holders of Securities of
any series, setting forth the time and the place of such meeting and in general
terms the action proposed to be taken at such meeting, shall be given, in the
manner provided in Section 107, not less than 20 nor more than 180 days prior to
the date fixed for the meeting.

          (b) In case at any time the Company, pursuant to a Board Resolution,
or the Holders of at least 10% in aggregate principal amount of the Outstanding
Securities of any series,


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<PAGE>   87


shall have requested the Trustee for any such series to call a meeting of the
Holders of Securities of such series for any purpose specified in Section 1401,
by written request setting forth in reasonable detail the action proposed to be
taken at the meeting, and the Trustee shall not have made the first publication
of the notice of such meeting within 30 days after receipt of such request or
shall not thereafter proceed to cause the meeting to be held as provided herein,
then the Company or the Holders of Securities of such series in the amount above
specified, as the case may be, may determine the time and the place in [CITY,
STATE], for such meeting and may call such meeting for such purposes by giving
notice thereof as provided in Subsection (a) of this Section.

SECTION 1403.  Persons Entitled to Vote at Meetings.

          To be entitled to vote at any meeting of Holders of Securities of any
series, a Person shall be (1) a Holder of one or more Outstanding Securities of
such series, or (2) a Person appointed by an instrument in writing as proxy for
a Holder or Holders of one or more Outstanding Securities of such series by such
Holder or Holders. The only Persons who shall be entitled to be present or to
speak at any meeting of Holders of Securities of any series shall be the Persons
entitled to vote at such meeting and their counsel, any representatives of the
Trustee and its counsel and any representatives of the Company and its counsel.

SECTION 1404.  Quorum; Action.

          The Persons entitled to vote a majority in aggregate principal amount
of the Outstanding Securities of a series shall constitute a quorum for a
meeting of Holders of Securities of such series. In the absence of a quorum
within 30 minutes of the time appointed for any such meeting, the meeting shall,
if convened at the request of Holders of Securities of such series, be
dissolved. In any other case, the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting. In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting. Subject to Section 1405(d), notice of the
reconvening of any adjourned meeting shall be given as provided in Section
1402(a), except that such notice need be given only once not less than five days
prior to the date on which the meeting is scheduled to be reconvened. Notice of
the reconvening of an adjourned meeting shall state expressly that Persons
entitled to vote a majority in principal amount of the Outstanding Securities of
such series shall constitute a quorum.

          Except as limited by the proviso to Section 902, any resolution
presented to a meeting or adjourned meeting duly reconvened at which a quorum is
present as aforesaid may be adopted by the affirmative vote of the Holders of a
majority in aggregate principal amount of the Outstanding Securities of that
series; provided, however, that, except as limited by the proviso to Section
902, any resolution with respect to any request, demand, authorization,
direction, notice, consent or waiver which this Indenture expressly provides may
be made, given or taken by the Holders of a specified percentage that is less
than a majority in aggregate principal amount of the Outstanding Securities of a
series may be adopted at a meeting or an adjourned meeting duly reconvened and
at


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which a quorum is present as aforesaid by the affirmative vote of the Holders of
such specified percentage in aggregate principal amount of the Outstanding
Securities of that series.

          Except as limited by the proviso to Section 902, any resolution passed
or decision taken at any meeting of Holders of Securities of any series duly
held in accordance with this Section shall be binding on all the Holders of
Securities of such series, whether or not present or represented at the meeting.

SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of
               Meetings.

          (a) The holding of Securities shall be proved in the manner specified
in Section 105 and the appointment of any proxy shall be proved in the manner
specified in Section 105. Such regulations may provide that written instruments
appointing proxies, regular on their face, may be presumed valid and genuine
without the proof specified in Section 105 or other proof.

          (b) The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by Holders of Securities as provided in Section 1402(b), in which
case the Company or the Holders of Securities of the series calling the meeting,
as the case may be, shall appoint a temporary chairman. A permanent chairman and
a permanent secretary of the meeting shall be elected by vote of the Persons
entitled to vote a majority in aggregate principal amount of the Outstanding
Securities of such series represented at the meeting.

          (c) At any meeting each Holder of a Security of such series and each
proxy shall be entitled to one vote for each $1,000 principal amount of the
Outstanding Securities of such series held or represented by him; provided,
however, that no vote shall be cast or counted at any meeting in respect of any
Security challenged as not Outstanding and ruled by the chairman of the meeting
to be not Outstanding. The chairman of the meeting shall have no right to vote,
except as a Holder of a Security of such series or as a proxy.

          (d) Any meeting of Holders of Securities of any series duly called
pursuant to Section 1402 at which a quorum is present may be adjourned from time
to time by Persons entitled to vote a majority in aggregate principal amount of
the Outstanding Securities of such series represented at the meeting; and the
meeting may be held as so adjourned without further notice.

SECTION 1406.  Counting Votes and Recording Action of Meetings.

          The vote upon any resolution submitted to any meeting of Holders of
Securities of any series shall be by written ballots on which shall be
subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them. The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting


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their verified written reports in duplicate of all votes cast at the meeting. A
record, at least in duplicate, of the proceedings of each meeting of Holders of
Securities of any series shall be prepared by the secretary of the meeting and
there shall be attached to such record the original reports of the inspectors of
votes on any vote by ballot taken thereat and affidavits by one or more persons
having knowledge of the facts setting forth a copy of the notice of the meeting
and showing that such notice was given as provided in Section 1402 and, if
applicable, Section 1404. Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

                                 ARTICLE FIFTEEN

                          SENIOR SUBORDINATED GUARANTEE

SECTION 1501.  Guarantee.

          Subject to this Article Fifteen, each of the Guarantors hereby,
jointly and severally, unconditionally guarantees, on a senior subordinated
basis, to each Holder of a Security authenticated and delivered by the Trustee
and to the Trustee and its successors and assigns, irrespective of the validity
and enforceability of this Indenture, the Securities or the obligations of the
Company hereunder or thereunder, that: (a) the principal of and interest on the
Securities will be promptly paid in full when due, whether at maturity, by
acceleration, redemption or otherwise, and interest on the overdue principal of
and interest on the Securities, if any, if lawful, and all other obligations of
the Company to the Holders or the Trustee hereunder or thereunder will be
promptly paid in full or performed, all in accordance with the terms hereof and
thereof; and (b) in case of any extension of time of payment or renewal of any
Securities or any of such other obligations, that same will be promptly paid in
full when due or performed in accordance with the terms of the extension or
renewal, whether at stated maturity, by acceleration or otherwise. Failing
payment when due of any amount so guaranteed or any performance so guaranteed
for whatever reason, the Guarantors shall be jointly and severally obligated to
pay the same immediately. Each Guarantor agrees that this is a guarantee of
payment and not a guarantee of collection.

          The Guarantors hereby agree that (subject to the provisions of Section
1503 hereof) their obligations hereunder shall be unconditional, irrespective of
the validity, regularity or enforceability of the Securities or this Indenture,
the absence of any action to enforce the same, any waiver or consent by any
Holder of the Securities with respect to any provisions hereof or thereof, the
recovery of any judgment against the Company, any action to enforce the same or
any other circumstance which might otherwise constitute a legal or equitable
discharge or defense of a Guarantor. Each Guarantor hereby waives diligence,
presentment, demand of payment, filing of claims with a court in the event of
insolvency or bankruptcy of the Company, any right to require a proceeding first
against the Company, protest, notice and all demands whatsoever and covenant
that this Senior Subordinated Guarantee shall not be discharged except by
complete performance of the obligations contained in the Securities and this
Indenture.


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<PAGE>   90



          If any Holder or the Trustee is required by any court or otherwise to
return to the Company, the Guarantors or any custodian, trustee, liquidator or
other similar official acting in relation to either the Company or the
Guarantors, any amount paid by either to the Trustee or such Holder, this Senior
Subordinated Guarantee, to the extent theretofore discharged, shall be
reinstated in full force and effect.

          Each Guarantor agrees that it shall not be entitled to any right of
subrogation in relation to the Holders in respect of any obligations guaranteed
hereby until payment in full of all obligations guaranteed hereby. Each
Guarantor further agrees that, as between the Guarantors, on the one hand, and
the Holders and the Trustee, on the other hand, (x) the maturity of the
obligations guaranteed hereby may be accelerated as provided in Article Five
hereof for the purposes of this Senior Subordinated Guarantee, notwithstanding
any stay, injunction or other prohibition preventing such acceleration in
respect of the obligations guaranteed hereby, and (y) in the event of any
declaration of acceleration of such obligations as provided in Article Five
hereof, such obligations (whether or not due and payable) shall forthwith become
due and payable by the Guarantors for the purpose of this Senior Subordinated
Guarantee. The Guarantors shall have the right to seek contribution from any
non-paying Guarantor so long as the exercise of such right does not impair the
rights of the Holders under the Senior Subordinated Guarantee.

SECTION 1502.  Subordination of Senior Subordinated Guarantee.

          The obligations of each Guarantor under its Senior Subordinated
Guarantee pursuant to this Article Fifteen shall be junior and subordinated to
all Senior Indebtedness of such Guarantor on the same basis as the Securities
are junior and subordinated to Senior Indebtedness of the Company. For the
purposes of the foregoing sentence, the Trustee and the Holders shall have the
right to receive and/or retain payments by any of the Guarantors only at such
times as they may receive and/or retain payments in respect of the Securities
pursuant to this Indenture.

SECTION 1503.  Limitation on Guarantor Liability.

          Each Guarantor, and by its acceptance of Securities, each Holder,
hereby confirms that it is the intention of all such parties that the Senior
Subordinated Guarantee of such Guarantor not constitute a fraudulent transfer or
conveyance for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance
Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to
the extent applicable to any Senior Subordinated Guarantee. To effectuate the
foregoing intention, the Trustee, the Holders and the Guarantors hereby
irrevocably agree that the obligations of such Guarantor will, after giving
effect to such maximum amount and all other contingent and fixed liabilities of
such Guarantor that are relevant under such laws, and after giving effect to any
collections from, rights to receive contribution from or payments made by or on
behalf of any other Guarantor in respect of the obligations of such other
Guarantor under this Article Fifteen, result in the obligations of such
Guarantor under its Senior Subordinated Guarantee not constituting a fraudulent
transfer or conveyance.


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SECTION 1504.  Execution and Delivery of Senior Subordinated Guarantee.

          To evidence its Senior Subordinated Guarantee set forth in Section
1501, each Guarantor hereby agrees that a notation of such Senior Subordinated
Guarantee substantially in the form set forth in Section 203 shall be endorsed
by an Officer of such Guarantor on each Security authenticated and delivered by
the Trustee and that this Indenture shall be executed on behalf of such
Guarantor by its President or one of its Vice Presidents.

          Each Guarantor hereby agrees that its Senior Subordinated Guarantee
set forth in Section 1501 shall remain in full force and effect notwithstanding
any failure to endorse on each Security a notation of such Senior Subordinated
Guarantee.

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

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

SECTION 1505.  Releases Following Sale of Assets.

          In the event of a sale or other disposition of all of the assets of
any Guarantor, by way of merger, consolidation or otherwise, or a sale or other
disposition of all to the Capital Stock of any Guarantor, in each case to a
Person that is not (either before or after giving effect to such transactions) a
Subsidiary of the Company, then such Guarantor (in the event of a sale or other
disposition, by way of merger, consolidation or otherwise, of all of the capital
stock of such Guarantor) or the Person acquiring the property (in the event of a
sale or other disposition of all or substantially all of the assets of such
Guarantor) will be released and relieved of any obligations under this Indenture
and its Senior Subordinated Guarantee, if immediately after giving effect to
such sale, there is no Default or Event of Default that has occurred and is
continuing. If such Guarantor is not released and relieved of its obligations
under its Senior Subordinated Guarantee because a Default or Event of Default
has occurred and is continuing immediately after giving effect to such sale,
such Guarantor will be released and relieved of such obligations as soon
thereafter as all Defaults and Events of Default have been waived or cured. The
Trustee shall execute any documents reasonably required in order to evidence the
release of any Guarantor, pursuant to the provisions of this Section 1506, from
its obligations under its Senior Subordinated Guarantee.

          Any Guarantor not released from its obligations under its Senior
Subordinated Guarantee shall remain liable for the full amount of principal of
and interest on the Securities and for the other obligations of any Guarantor
under this Indenture as provided in this Article.



                                       82

<PAGE>   92


                                   *     *    *

          This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

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


                                            KEY ENERGY SERVICES, INC.


                                            By:
                                               --------------------------------
                                                  Name:
                                                  Title:


                                            [GUARANTORS]


                                            By:
                                               --------------------------------
                                                  Name:
                                                  Title:


                                            [TRUSTEE], Trustee



                                            By:
                                               --------------------------------
                                                  Name:
                                                  Title:


                                       83

<PAGE>   93


                                   SCHEDULE I


The following schedule lists each Guarantor under the Indenture as of the Issue
Date.

Yale E. Key, Inc., a Texas corporation; Key Energy Drilling, Inc., a Delaware
corporation; WellTech Eastern, Inc., a Delaware corporation; Odessa Exploration
Incorporated, a Delaware corporation; Kalkaska Oilfield Services, Inc., a
Michigan corporation; Well-Co Oil Services, Inc., a Nevada corporation; Patrick
Well Service, Inc., a Kansas corporation; Mosley Well Service, Inc., a Louisiana
corporation; Ram Oil Well Service, Inc., a New Mexico corporation; Rowland
Trucking Co., Inc., a New Mexico corporation; Landmark Fishing & Rental, Inc.,
an Oklahoma corporation; Dunbar Well Service, Inc., a Colorado corporation;
Frontier Well Service, Inc., a Wyoming corporation; Key Rocky Mountain, Inc., a
Delaware corporation; Key Four Corners, Inc., a Delaware corporation; Jeter
Service, Co., an Oklahoma corporation; Jeter Well Service, Inc., an Oklahoma
corporation; Jeter Transportation, Inc., an Oklahoma corporation; Industrial
Oilfield Supply, Inc., an Oklahoma corporation; Brooks Well Servicing, Inc., a
Delaware corporation; Updike Brothers, Inc., a Wyoming corporation; J.W. Gibson
Well Service Company, a Delaware corporation; Key Energy Services - South Texas,
Inc., a Delaware corporation; Key Energy Services - California, Inc., a Delaware
corporation; Watson Oilfiled Service & Supply, Inc., a Delaware corporation;
WellTech Mid-Continent, Inc., a Delaware corporation; Dawson Production
Management, Inc., a Delaware corporation; Dawson Production Taylor, Inc., a
Delaware corporation; Dawson Production Acquisition Corp., a Delaware
corporation; and Dawson Production Partners, L.P., a Delaware limited
partnership.



                                    Sch I - 1

<PAGE>   1

                                                                    EXHIBIT 23.2


                              CONSENT OF KPMG LLP

The Board of Directors
Key Energy Services, Inc.:

We consent to the use of our report on the consolidated financial statements of
Key Energy Services, Inc., incorporated herein by reference, and to the
reference to our firm under the heading "Experts" in the Prospectus.



                                                      KPMG LLP



Midland, Texas
March 30, 1999

<PAGE>   1

                                                                    EXHIBIT 23.3


                              CONSENT OF KPMG LLP

The Board of Directors
Key Energy Services, Inc.:

We consent to the use of our report on the consolidated financial statements of
Dawson Production Services, Inc., incorporated herein by reference, and to the
reference to our firm under the heading "Experts" in the Prospectus.



                                                      KPMG LLP



Midland, Texas
March 30, 1999


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