Document:

exv10w33

EXHIBIT 10.33

SERVICES AGREEMENT

          This SERVICES AGREEMENT, dated as of September 26, 2008 between Samson Dental Practice Management,
LLC (collectively “Client”) and Ferrellgas, L.P. (“Provider”). The Client and Provider are referred
to collectively herein as the “Parties” or individually as the “Party”.

          WHEREAS, Client desires to obtain the benefit of certain support and administrative services from
Provider as specified on Schedule I (the “Services”).

          NOW, THEREFORE, in consideration of the premises and the mutual covenants herein contained, the
Parties agree as follows:

          Section 1. Term. The term of this Agreement shall begin on September 11, 2008 and continue
until terminated by a party pursuant to the terms of this Agreement.

          Section 2. Services. During the Term, Provider shall provide, through its personnel and/or
third party contractors, the Services described on Schedule I to this Agreement. Provider and
Client agree that the quantity of Services shall not exceed the reasonable capacity of Provider’s
personnel and/or third party contractors, considering the existing responsibilities of the
personnel and contractors for Provider.

          Section 3. Pricing, Billing and Payment. Fees for the Services shall be as described on
Schedule I to this Agreement. All fees will be invoiced to Client and due within fifteen (15) days
of invoice.

          Section 4. Termination.

          (a) Either Party shall have the right to terminate any category of service at any time. In such
event, Client shall pay to Provider all prorated or incurred amounts payable, and fees for any time
of Provider to transition such Services to Client or any subsequent provider.

          (b) Either Party shall have the right to terminate this Agreement at any time upon thirty (30)
days’ notice, with our without cause.

          (c) Provider may terminate and pursue any remedies available to it at law or in equity if (i) the
Client becomes insolvent or is adjudicated a bankrupt, or (ii) fails to pay for Services in a
prompt fashion and does not cure said default within ten (10) days of notice thereof.

 

 

          Section 5. Proprietary Information and Rights. Provider and Client each acknowledge that
the other possesses and will continue to possess information that has been created, discovered or
developed by them and/or in which property rights have been assigned or otherwise conveyed to them,
which information has commercial value and is not in the public domain. The proprietary information
of each Party will be and remain the sole property of such Party and its assigns. Each Party will
use the same degree of care which it normally uses to protect its own proprietary information to
prevent disclosing to third parties the information of another that has been
identified as proprietary by written notice. No Party will disclose or make any use of the
information of another which has been identified as proprietary except as contemplated or required
by the terms of this Agreement. Notwithstanding the foregoing, this Article won’t apply to any
information which a Party can demonstrate was, at the time of disclosure to it, in the public
domain through no fault of such Party; was received after disclosure to it from a third party who
had a lawful right to disclose such information to it; or was independently developed by the
receiving Party.

          Section 6. Warranties. Provider warrants only that it will utilize qualified personnel in
performing the Services and that said personnel will perform the Services in a workmanlike manner.
Provider makes no warranties that its work product will be fit for a particular purpose or will
achieve a particular business result, and Client waives any such warranties. Client agrees that
Provider’s total liability to Client for any claims, losses, expenses or damages whatsoever arising
out of or in any way related to this Agreement from any cause or causes, including breach of the
warranties contained in the section or negligence, shall not exceed the total of the payments made
by Client to Provider under this Agreement.

          Section 7. Indemnification. Client shall indemnify, defend and hold harmless Provider and
its respective directors, officers, unitholders, agents and employees from, against and in respect
of any third party damages, claims, losses, charges, actions, suits, proceedings, deficiencies,
sales taxes, excise taxes, ad valorem taxes, interest, penalties, reasonable attorneys’ fees and
expenses (“Losses”) imposed on, sustained, incurred or suffered by or asserted against any of the
Provider, directly or indirectly relating to or arising out of the Services, except to the extent
any Losses are due to the gross negligence or willful misconduct of Provider. The foregoing
indemnification shall not apply to (a) claims asserted by Provider’s employees, (b) claims arising
out of motor vehicles being operated by Provider’s employees, or (c) personal injury claims arising
out of negligent acts on Provider’s premises.

          Section 8. Solicitation of Employees. Client agrees that it will not, during the term of
this Agreement and for one year after its termination or expiration, solicit or hire any of
Provider’s employees used in the performance of the Services.

          Section 9. Amendment. This Agreement, or Schedule I to this Agreement, may be amended,
modified or supplemented only by written agreement signed by the Parties.

2

 

          Section 10. Governing Law, Venue. This Agreement shall be governed by, and construed in
accordance with, the laws of the State of Kansas, without reference to choice of law principles,
including matters of construction, validity and performance. The parties agree that the state and
federal courts located in Johnson County, Kansas shall be the appropriate venue for any litigation
arising from this Agreement.

          Section 11. Notices. All notices, requests, demands, or other communications to Provider or
Client shall be given by delivering such notice by United States mail or overnight courier to the
following addresses:

     If to Client:

          Samson Dental Practice Management, LLC

          7500 College Boulevard, Suite 1160

          Overland Park, KS 66210

     If to Provider:

          Ferrellgas, L.P.

          Attn: Gene Caresia

          7500 College Boulevard, Suite 1000

          Overland Park, KS 66210

     With a Copy to:

          Ferrellgas, L.P.

          Attn: Legal Department

          7500 College Boulevard, Suite 1000

          Overland Park, KS 66210

          IN WITNESS WHEREOF, each of the parties has caused this Services Agreement to be duly executed on
its behalf by its officers thereunto duly authorized, all as of the day and year first above
written.

	 	 	 	 	 
	Samson Dental Practice Management, LLC	 	 
	 
	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

	 	 
	Name:
	 	 	 	 
	Title:
	 	 	 	 
	 
	 	 	 	 
	Ferrellgas, L.P.	 	 
	 
	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

	 	 
	Name:
	 	 	 	 
	Title:
	 	 	 	 

3

 

Schedule I

SERVICES TO BE PROVIDED BY PROVIDER

Provider shall provide the following enumerated Services to the Client in exchange for the
specified fees and/or rates:

	 	Ø	 	Services related to sales, marketing and communications.
	 
	 	Ø	 	Services related to Human Resources, including, but not exclusive to: recruiting,
staffing, training design and delivery, human resource consultation, compensation design
and benefit design.
	 
	 	Ø	 	Services related to review of contracts and other documents
	 
	 	Ø	 	Services related to executive consultation and operations management.
	 
	 	Ø	 	Other Services by agreement of the parties.

FEES TO BE PAID TO PROVIDER BY CLIENT

In consideration of the Services, Client agrees to pay a sum of $20,000 per month.

4exv10w1

Exhibit 10.1

Description of Profit Sharing Plan

     Pursuant to the Profit Sharing Plan (the “Plan”), which is not a qualified plan under ERISA,
Dawson Geophysical Company (the “Company”) accrues 5% of pretax net income each month during a
fiscal year as a pool of funds to be allocated to all employees, including the Company’s executive
officers, that contributed to the success of the fiscal year.
Employees that have at least one year of service as of the end of the
Company's fiscal year are included in the allocation of the funds that are paid
mid-November. Participating employees must be employed with the Company on the date of payment in
order to receive a payment under the Plan. The allocation of funds is based on a formula of period
of service, annual salary and position.exv10w1

Exhibit 10.1

      

AMENDED AND RESTATED CREDIT AGREEMENT

Dated as of September 29, 2008

among

BRONCO DRILLING COMPANY, INC.

as Borrower,

CERTAIN SUBSIDIARIES THEREOF,

as Guarantors,

THE LENDERS FROM TIME TO TIME PARTY HERETO,

as Lenders,

FORTIS BANK SA/NV, NEW YORK BRANCH,

as Administrative Agent, Joint Lead Arranger, and Sole Bookrunner,

THE ROYAL BANK OF SCOTLAND plc,

as Joint Lead Arranger,

THE ROYAL BANK OF SCOTLAND plc,

and

THE PRUDENTIAL INSURANCE COMPANY OF AMERICA,

as Co-Syndication Agents,

and

THE CIT GROUP/BUSINESS CREDIT, INC.

and

CATERPILLAR FINANCIAL SERVICES CORPORATION,

as Co-Documentation Agents

      

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page	 
	ARTICLE I DEFINITIONS AND ACCOUNTING TERMS
	 	 	1	 
	 
	Section 1.01 Certain Defined Terms
	 	 	1	 
	 
	Section 1.02 Computation of Time Periods
	 	 	25	 
	 
	Section 1.03 Accounting Terms
	 	 	25	 
	 
	Section 1.04 Types of Revolving Advances
	 	 	26	 
	 
	Section 1.05 Miscellaneous
	 	 	26	 
	 
	ARTICLE II THE REVOLVING ADVANCES
	 	 	26	 
	 
	Section 2.01 The Revolving Advances
	 	 	26	 
	 
	Section 2.02 Method of Borrowing
	 	 	26	 
	 
	Section 2.03 Fees
	 	 	30	 
	 
	Section 2.04 Reduction of the Revolving Commitments
	 	 	31	 
	 
	Section 2.05 Repayment
	 	 	32	 
	 
	Section 2.06 Interest
	 	 	32	 
	 
	Section 2.07 Prepayments
	 	 	33	 
	 
	Section 2.08 Funding Losses
	 	 	36	 
	 
	Section 2.09 Increased Costs
	 	 	37	 
	 
	Section 2.10 Payments and Computations
	 	 	38	 
	 
	Section 2.11 Taxes
	 	 	39	 
	 
	Section 2.12 Sharing of Payments, Etc
	 	 	41	 
	 
	Section 2.13 Applicable Lending Offices
	 	 	41	 
	 
	Section 2.14 Letters of Credit
	 	 	42	 
	 
	ARTICLE III CONDITIONS OF LENDING
	 	 	47	 
	 
	Section 3.1 Initial Conditions Precedent
	 	 	47	 
	 
	Section 3.02 Conditions Precedent to Each Advance
	 	 	51	 
	 
	Section 3.03 Determinations Under Section 3.01 and 3.02
	 	 	52	 
	 
	ARTICLE IV REPRESENTATIONS AND WARRANTIES
	 	 	52	 
	 
	Section 4.01 Existence
	 	 	52	 
	 
	Section 4.02 Power and Authority
	 	 	52	 
	 
	Section 4.03 Authorization and Approvals
	 	 	52	 
	 
	Section 4.04 Enforceable Obligations
	 	 	53	 

-i-

 

TABLE OF CONTENTS

(continued)

	 	 	 	 	 
	 	 	Page	 
	Section 4.05 Financial Statements; No Material Adverse Effect
	 	 	53	 
	 
	Section 4.06 True and Complete Disclosure
	 	 	53	 
	 
	Section 4.07 Litigation
	 	 	54	 
	 
	Section 4.08 Compliance with Laws
	 	 	54	 
	 
	Section 4.09 No Default
	 	 	54	 
	 
	Section 4.10 Subsidiaries; Corporate Structure
	 	 	54	 
	 
	Section 4.11 Condition of Property
	 	 	55	 
	 
	Section 4.12 Environmental Condition
	 	 	55	 
	 
	Section 4.13 Insurance
	 	 	56	 
	 
	Section 4.14 Taxes
	 	 	56	 
	 
	Section 4.15 ERISA Compliance
	 	 	56	 
	 
	Section 4.16 Security Interests
	 	 	57	 
	 
	Section 4.17 Bank Accounts
	 	 	57	 
	 
	Section 4.18 Labor Relations
	 	 	57	 
	 
	Section 4.19 Intellectual Property
	 	 	58	 
	 
	Section 4.20 Solvency
	 	 	58	 
	 
	Section 4.21 Senior Indebtedness
	 	 	59	 
	 
	Section 4.22 Margin Regulations
	 	 	59	 
	 
	Section 4.23 Investment Company Act
	 	 	59	 
	 
	Section 4.24 Names and Locations
	 	 	59	 
	 
	ARTICLE V AFFIRMATIVE COVENANTS
	 	 	59	 
	 
	Section 5.01 Preservation of Existence, Etc
	 	 	59	 
	 
	Section 5.02 Compliance with Laws, Etc
	 	 	59	 
	 
	Section 5.03 Maintenance of Property
	 	 	60	 
	 
	Section 5.04 Maintenance of Insurance
	 	 	60	 
	 
	Section 5.05 Payment of Taxes, Etc
	 	 	60	 
	 
	Section 5.06 Reporting Requirements
	 	 	61	 
	 
	Section 5.07 Other Notices
	 	 	62	 
	 
	Section 5.08 Books and Records; Inspection
	 	 	64	 
	 
	Section 5.09 Agreement to Pledge
	 	 	65	 

-ii-

 

TABLE OF CONTENTS

(continued)

	 	 	 	 	 
	 	 	Page	 
	Section 5.10 Use of Proceeds
	 	 	65	 
	 
	Section 5.11 Nature of Business
	 	 	65	 
	 
	Section 5.12 Additional Guarantors
	 	 	65	 
	 
	Section 5.13 Additional Collateral Requirements
	 	 	66	 
	 
	Section 5.14 Appraisal Reports
	 	 	67	 
	 
	Section 5.15 Further Assurances in General
	 	 	67	 
	 
	ARTICLE VI NEGATIVE COVENANTS
	 	 	68	 
	 
	Section 6.01 Liens, Etc
	 	 	68	 
	 
	Section 6.02 Debts, Guaranties and Other Obligations
	 	 	68	 
	 
	Section 6.03 Merger or Consolidation
	 	 	70	 
	 
	Section 6.04 Asset Sales
	 	 	70	 
	 
	Section 6.05 Investments
	 	 	71	 
	 
	Section 6.06 Restricted Payments
	 	 	73	 
	 
	Section 6.07 Change in Nature of Business
	 	 	74	 
	 
	Section 6.08 Transactions With Affiliates
	 	 	74	 
	 
	Section 6.09 Agreements Restricting Liens and Distributions
	 	 	74	 
	 
	Section 6.10 Limitation on Accounting Changes or Changes in Fiscal Periods
	 	 	75	 
	 
	Section 6.11 Limitation on Speculative Hedging
	 	 	75	 
	 
	Section 6.12 Operating Leases
	 	 	75	 
	 
	Section 6.13 Sale and Leaseback Transactions and other Off-Balance Sheet Liabilities
	 	 	75	 
	 
	Section 6.14 Subordinated Debt
	 	 	75	 
	 
	Section 6.15 [Reserved]
	 	 	75	 
	 
	Section 6.16 Minimum Fixed Charge Coverage Ratio
	 	 	75	 
	 
	Section 6.17 Maximum Total Leverage Ratio
	 	 	76	 
	 
	ARTICLE VII EVENTS OF DEFAULT
	 	 	76	 
	 
	Section 7.01 Events of Default
	 	 	76	 
	 
	Section 7.02 Optional Acceleration of Maturity
	 	 	78	 
	 
	Section 7.03 Automatic Acceleration of Maturity
	 	 	78	 
	 
	Section 7.04 Non-exclusivity of Remedies
	 	 	79	 

-iii-

 

TABLE OF CONTENTS

(continued)

	 	 	 	 	 
	 	 	Page	 
	Section 7.05 Right of Set-off
	 	 	79	 
	 
	Section 7.06 Application of Proceeds
	 	 	79
	 
	 
	Section 7.07 Administrative Agent’s Account
	 	 	80	 
	 
	ARTICLE VIII GUARANTY
	 	 	81	 
	 
	Section 8.01 Liabilities Guaranteed
	 	 	81	 
	 
	Section 8.02 Nature of Guaranty
	 	 	81	 
	 
	Section 8.03 Agent’s Rights
	 	 	81	 
	 
	Section 8.04 Guarantor’s Waivers
	 	 	81	 
	 
	Section 8.05 Maturity of Obligations, Payment
	 	 	82	 
	 
	Section 8.06 Agent’s Expenses
	 	 	83	 
	 
	Section 8.07 Liability
	 	 	83	 
	 
	Section 8.08 Events and Circumstances Not Reducing or Discharging any Guarantor’s Obligations
	 	 	83	 
	 
	Section 8.09 Subordination of All Guarantor Claims
	 	 	85	 
	 
	Section 8.10 Claims in Bankruptcy
	 	 	86	 
	 
	Section 8.11 Payments Held in Trust
	 	 	86	 
	 
	Section 8.12 Benefit of Guaranty
	 	 	86	 
	 
	Section 8.13 Reinstatement
	 	 	86	 
	 
	Section 8.14 Liens Subordinate
	 	 	87	 
	 
	Section 8.15 Guarantor’s Enforcement Rights
	 	 	87	 
	 
	Section 8.16 Limitation
	 	 	87	 
	 
	Section 8.17 Contribution Rights
	 	 	87	 
	 
	Section 8.18 Release of Guarantors
	 	 	88	 
	 
	ARTICLE IX THE ADMINISTRATIVE AGENT
	 	 	88	 
	 
	Section 9.01 Appointment and Authority
	 	 	88	 
	 
	Section 9.02 Rights as a Lender
	 	 	89	 
	 
	Section 9.03 Exculpatory Provisions
	 	 	89	 
	 
	Section 9.04 Reliance by the Administrative Agent
	 	 	90	 
	 
	Section 9.05 Delegation of Duties
	 	 	90	 
	 
	Section 9.06 Resignation of Administrative Agent
	 	 	90	 

-iv-

 

TABLE OF CONTENTS

(continued)

	 	 	 	 	 
	 	 	Page	 
	Section 9.07 Non-Reliance on Administrative Agent and Other Lenders
	 	 	91	 
	 
	Section 9.08 Indemnification
	 	 	91	 
	 
	Section 9.09 Collateral and Guaranty Matters
	 	 	92	 
	 
	Section 9.10 No Other Duties, etc.
	 	 	93	 
	 
	ARTICLE X   MISCELLANEOUS
	 	 	93	 
	 
	Section 10.01 Amendments, Etc
	 	 	93	 
	 
	Section 10.02 Notices, Etc
	 	 	94	 
	 
	Section 10.03 No Waiver; Cumulative Remedies
	 	 	96	 
	 
	Section 10.04 Costs and Expenses
	 	 	96	 
	 
	Section 10.05 Indemnification
	 	 	96	 
	 
	Section 10.06 Successors and Assigns
	 	 	98	 
	 
	Section 10.07 Confidentiality
	 	 	101	 
	 
	Section 10.08 Execution in Counterparts
	 	 	101	 
	 
	Section 10.09 Survival of Representations, etc
	 	 	101	 
	 
	Section 10.10 Severability
	 	 	102	 
	 
	Section 10.11 Interest Rate Limitation
	 	 	102	 
	 
	Section 10.12 Governing Law
	 	 	102	 
	 
	Section 10.13 Submission to Jurisdiction
	 	 	102	 
	 
	Section 10.14 Waiver of Jury
	 	 	103	 
	 
	Section 10.15 Entire Agreement
	 	 	103	 

-v-

 

TABLE OF CONTENTS

(continued)

	 	 	 	 	 
	 	 	 	 	Page
	EXHIBITS:
	 	 	 	 
	 
	 	 	 	 
	Exhibit A

	 	-
	 	Form of Assignment and Acceptance Agreement
	Exhibit B

	 	-
	 	Form of Compliance Certificate
	Exhibit C

	 	-
	 	Form of Letter of Credit Request
	Exhibit D

	 	-
	 	Form of Note
	Exhibit E

	 	-
	 	Form of Notice of Borrowing
	Exhibit F

	 	-
	 	Form of Notice of Conversion or Continuation
	Exhibit G

	 	-
	 	Form of Pledge Agreement
	Exhibit H

	 	-
	 	Form of Security Agreement
	Exhibit I

	 	-
	 	Form of Borrowing Base Report
	 
	 	 	 	 
	SCHEDULES:
	 	 	 	 
	 
	 	 	 	 
	Schedule 1.01(a)

	 	-
	 	Guarantors
	Schedule 1.01(b)

	 	-
	 	Initial Pledged Rigs
	Schedule 2.01

	 	-
	 	Commitments and Pro Rata Shares of the Lenders
	Schedule 4.10

	 	-
	 	Subsidiaries
	Schedule 4.13

	 	-
	 	Insurance
	Schedule 4.17

	 	-
	 	Bank Accounts
	Schedule 4.24

	 	-
	 	Locations
	Schedule 6.01

	 	-
	 	Existing Liens
	Schedule 6.02

	 	-
	 	Existing Debt
	Schedule 6.05

	 	-
	 	Investments
	Schedule 6.08

	 	-
	 	Affiliate Transactions
	Schedule 10.02

	 	-
	 	Addresses for Notice

-vi-

 

AMENDED AND RESTATED CREDIT AGREEMENT

     This Amended and Restated Credit Agreement dated as of September 29, 2008 is among Bronco
Drilling Company, Inc., a Delaware corporation (the “Borrower”), the Guarantors, the
Lenders, and Fortis Bank SA/NV, New York Branch, as Administrative Agent for the Lenders.

RECITALS

     A. The Borrower, the Guarantors, the lenders party thereto and the Administrative Agent are
parties to the Credit Agreement dated as of January 13, 2006, as amended (the “Existing Credit
Agreement”).

     B. The parties hereto desire to amend and restate the Existing Credit Agreement. To evidence
the credit facility requested hereunder, the parties hereto have agreed that this Agreement is an
amendment and restatement of the Existing Credit Agreement, not a new or substitute credit
agreement or novation of the Existing Credit Agreement, and each reference to an “Advance” or a
“Letter of Credit” shall include each Advance made and each Letter of Credit issued heretofore
under the Existing Credit Agreement as well as each Advance made and each Letter of Credit issued
hereafter under this Agreement.

     The Borrower, the Guarantors, the Lenders, and the Administrative Agent agree as follows:

ARTICLE I

DEFINITIONS AND ACCOUNTING TERMS

     Section 1.01 Certain Defined Terms. Any terms used in this Agreement that are defined
in Article 9 of the Uniform Commercial Code as adopted in the State of New York (“UCC”)
shall have the meanings assigned to those terms by the UCC as of the date of this Agreement. As
used in this Agreement, the terms defined above shall have the meanings set forth therein and the
following terms shall have the following meanings (unless otherwise indicated, such meanings to be
equally applicable to both the singular and plural forms of the terms defined):

     “Acceptable Security Interest” in any Property means a Lien which (a) exists in favor
of the Administrative Agent for the benefit of the Secured Parties; (b) is superior to all other
Liens except Excepted Liens; (c) secures the Obligations; and (d) is perfected and enforceable
against the Loan Party that created such security interest in preference to any rights of any
Person therein, other than Excepted Liens.

     “Account Control Agreement” shall mean, if any deposit account of the Borrower or any
Loan Party is held with a financial institution that is not the Administrative Agent, an agreement
or agreements in form and substance reasonably acceptable to the Administrative Agent between
the Administrative Agent and such other financial institution governing any such deposit
accounts of the Borrower or such Loan Party.

 

 

     “Acquisition” means any transaction, or any series of related transactions,
consummated on or after the date of this Agreement, by which the Borrower or any of its
Subsidiaries (a) acquires any going business or all or substantially all of the assets of any firm,
corporation or limited liability company, or division thereof, whether through purchase of assets,
merger or otherwise, (b) directly or indirectly acquires (in one transaction or as the most recent
transaction in a series of transactions) at least a majority (in number of votes) of the securities
of a corporation which have ordinary voting power for the election of directors (other than
securities having such power only by reason of the happening of a contingency) or a majority (by
percentage or voting power) of the outstanding ownership interests of a partnership or limited
liability company, or (c) acquires Rigs and related assets from another Person (other than a Loan
Party) for consideration of $1,000,000.00 or more (whether in cash, securities, or assumed debt).

     “Active Rig” means any Rig that is currently operating or earning revenues under a
contract.

     “Adjusted Base Rate” means, for any day, a fluctuating rate of interest per annum
equal to the Prime Rate in effect for such day. Any change in the Adjusted Base Rate due to a
change in the Prime Rate shall be effective on the effective date of such change in the Prime Rate.

     “Administrative Agent” means Fortis in its capacity as administrative agent for the
Lenders under the Loan Documents and any successor in such capacity appointed pursuant to
Section 9.06.

     “Administrative Agent’s Account” means account no. 001-1-624418 maintained at Fortis,
and is the “Collateral Account” established and maintained pursuant to Section 7.07, in the
name of the Borrower but under the sole dominion and control of, and exclusive right of withdrawal
at the direction of, the Administrative Agent and subject to the terms of this Agreement.

     “Administrative Questionnaire” means an administrative questionnaire in a form
supplied by the Administrative Agent.

     “Affected Lender” has the meaning set forth in Section 2.07(d).

     “Affiliate” of any Person, means any other Person that, directly or indirectly,
through one or more intermediaries, controls, is controlled by, or is under common control with,
such Person or any Subsidiary of such Person. The term “control” (including the terms “controlled
by” or “under common control with”) means the possession, directly or indirectly, of the power to
(a) vote or direct the voting of 10% or more of the outstanding shares of Voting Stock of such
Person or (b) direct or cause the direction of the management and policies of a Person, whether
through the ability to exercise voting power, by contract or otherwise.

     “Agreement” means this Amended and Restated Credit Agreement dated as of September 29,
2008 among the Borrower, the Guarantors, the Lenders, and the Administrative Agent, as it may be
amended or modified and in effect from time to time.

     “Applicable Lending Office” means (a) with respect to any Lender, the office, branch,
subsidiary, affiliate or correspondent bank of such Lender specified in its Administrative

2

 

Questionnaire or such other office, branch, subsidiary, affiliate or correspondent bank as such
Lender may from time to time specify to the Borrower and the Administrative Agent from time to time
and (b) with respect to the Administrative Agent, the address specified for such Person on
Schedule 10.02 or to such other address, facsimile number, electronic mail address or
telephone number as shall be designated by such party in a notice to the other parties.

     “Applicable Margin” means with respect to (a) Base Rate Advances, 3.00% and (b)
Eurodollar Advances, 4.00%.

     “Appraisal Report” means a report of the Complete Rigs from a recognized appraiser of
oilfield equipment in form and substance acceptable to the Administrative Agent that states the
make, model, condition, horsepower or depth rating, Orderly Liquidation Value. That portion of any
Appraisal Report which covers new Rigs, newly acquired used Rigs or newly refurbished used Rigs
(Rigs being changed from components to a Complete Rig) will require a physical, on-site inspection
by the appraiser. That portion of any Appraisal Report which updates previously appraised Rigs
will be performed as a desktop appraisal unless specifically requested to be a physical appraisal
by the Administrative Agent or the Majority Lenders; provided, however that the
Appraisal Reports required to be delivered pursuant to Section 3.01(a)(xv) shall require a
physical, on-site inspection by the appraiser.

     “Approved Fund” means any Fund that is administered or managed by (a) a Lender, (b) an
Affiliate of a Lender, or (c) an entity or an Affiliate of an entity that administers or manages a
Lender.

     “Arrangers” means (a) each of Fortis and The Royal Bank of Scotland plc in their
capacity as joint lead arrangers and (b) Fortis in its capacity as sole bookrunner.

     “Asset Disposition” or “Dispose” means the disposition, whether by sale,
lease, license, transfer, loss, damage, destruction, condemnation or otherwise, of any or all of
the Property of the Borrower or any of its Subsidiaries other than (a) any sale or issuance of
Equity Interests of any of the Borrower’s Subsidiaries to any Loan Party, (b) sales of inventory in
the ordinary course of business, (c) dispositions of assets having a book value of $1,000,000.00 or
less individually or in a series of transactions, and (d) dispositions of assets which have become
obsolete or no longer useful in the business of any Loan Party.

     “Assignment and Acceptance” shall mean an assignment and assumption entered into by a
Lender and an Eligible Assignee (with the consent of any party whose consent is required by
Section 10.06), and accepted by the Administrative Agent, in substantially the form of
Exhibit A or any other form approved by the Administrative Agent in its reasonable
discretion.

     “Attributable Indebtedness” means, on any date, (a) in respect of any Capital Lease of
any Person, the capitalized amount thereof that would appear on a balance sheet of such Person
prepared as of such date in accordance with GAAP and (b) in respect of any Synthetic Lease
Obligation, the capitalized amount of the remaining lease payments under the relevant lease that
would appear on a balance sheet of such Person prepared as of such date in accordance with
GAAP if such lease were accounted for as a capital lease.

3

 

     “Audited Financial Statements” means the audited consolidated balance sheet of the
Borrower and its Subsidiaries for the fiscal year ended December 31, 2007, together with the
related consolidated statements of operations, shareholders’ equity and cash flows for such fiscal
year of the Borrower and its Subsidiaries, including the notes thereto.

     “Base Rate Advance” means a Revolving Advance that bears interest at a rate determined
by reference to the Adjusted Base Rate.

     “Beneficial Owner” has the meaning assigned to such term in Rule 13d-3 and Rule 13d-5
under the Exchange Act.

     “Blocked Accounts” has the meaning set forth in Section 5.13(b).

     “Borrowing” means a borrowing consisting of simultaneous Revolving Advances of the
same Type made, converted or continued on the same Business Day, and, in the case of Eurodollar
Advances, as to which a single Interest Period is in effect.

     “Borrowing Base” means, as of any date of determination, an amount equal to 60% of the
aggregate Orderly Liquidation Value of all Pledged Rigs that are valued as Complete Rigs as set
forth in the most recently delivered Appraisal Reports.

     “Borrowing Base Availability” means the excess, if any, of the Borrowing Base over the
sum of the Revolving Advances and the Letter of Credit Exposure.

     “Borrowing Base Report” means a borrowing base report in the form of the attached
Exhibit I signed by a Responsible Officer of the Borrower.

     “Borrowing Date” means the date on which any Revolving Advance is made or any Letter
of Credit is issued hereunder.

     “Bronco Mexico” means Bronco Drilling MX, S. de R.L. de C.V.

     “Business Day” means any day other than a Saturday, Sunday or other day on which
commercial banks are authorized to close under the laws of, or are in fact closed in, New York and,
if such day relates to any Eurodollar Advance, means any such day on which dealings in Dollar
deposits are conducted by and between banks in the London interbank eurodollar market.

     “Capital Expenditures” means all expenditures of any Person in respect of the purchase
or other acquisition, construction or improvement of any fixed or capital assets that are required
to be capitalized under GAAP on a balance sheet as property, plant, equipment or other fixed assets
or intangibles; provided, however that Capital Expenditures shall in any event exclude (a) normal
replacements and maintenance which are properly charged to current operations, (b) amounts expended
with the proceeds of insurance to repair or replace fixed or capital assets and (c) leasehold
improvement expenditures for which such Person is reimbursed by the lessor, sublessor or sublessee.

4

 

     “Capital Lease” of a Person means any lease of any Property by such Person as lessee
that would, in accordance with GAAP, be required to be classified and accounted for as a capital
lease on the balance sheet of such Person.

     “Cash Equivalents” means:

     (a) direct obligations of, or obligations the principal of and interest on which are
unconditionally guaranteed by, the United States of America (or by any agency thereof to the extent
such obligations are backed by the full faith and credit of the United States of America), in each
case maturing within one year from the date of acquisition thereof;

     (b) investments in commercial paper maturing within 270 days from the date of acquisition
thereof and having, at such date of acquisition, one of the two highest credit ratings obtainable
from S&P or from Moody’s;

     (c) investments in deposit accounts, certificates of deposit, banker’s acceptances and time
deposits maturing within one year from the date of acquisition thereof issued or guaranteed by or
placed with, and money market deposit accounts issued or offered by, the Administrative Agent or
any domestic office of any commercial bank organized under the laws of the United States of America
or any State thereof that has a combined capital and surplus and undivided profits of not less than
$500,000,000.00;

     (d) fully collateralized repurchase agreements with a term of not more than 30 days for
securities described in clause (a) above and entered into with a financial institution satisfying
the criteria of clause (c) above;

     (e) investments in “money market funds” within the meaning of Rule 2a-7 of the Investment
Company Act of 1940, as amended, substantially all of whose assets are invested in investments of
the type described in clauses (a) through (d) above; and

     (f) demand deposit accounts maintained in the ordinary course of business.

     “Cash-Secured Letters of Credit” means [to be described].

     “Cash Taxes” means, for any period, all income taxes paid in cash by the Borrower and
its Subsidiaries during such period.

     “Challenger” means Challenger Limited, a company organized under the laws of the Isle
of Man.

     “Change in Law” means the occurrence, after the date of this Agreement, of any of the
following: (a) the adoption of taking effect of any law, rule, regulation or treaty, (b) any change
in any law, rule, regulation or treaty or in the administration, interpretation or application
thereof by any Governmental Authority or (c) the making or issuance of any request, guideline or
directive by any Governmental Authority.

     “Change of Control” means the occurrence of any of the following events:

5

 

     (a) the direct or indirect sale, transfer, conveyance or other disposition (other than by way
of merger or consolidation), in one or a series of related transactions, of all or substantially
all of the properties or assets of the Borrower and its Subsidiaries taken as a whole to any
“person” (as that term is used in Section 13(d) of the Exchange Act, but excluding any employee
benefit plan of the Borrower or any of its Subsidiaries, and any person or entity acting in its
capacity as trustee, agent or other fiduciary or administrator of any such plan);

     (b) the consummation of any transaction (including any merger or consolidation) the result of
which is that any “person” (as defined above) becomes the Beneficial Owner, directly or indirectly,
of more than 40% of the Voting Stock of the Borrower, measured by voting power rather than number
of shares;

     (c) the first day on which a majority of the members of the Board of Directors of the Borrower
are not Continuing Directors; or

     (d) the Borrower consolidates with, or merges with or into, any Person, or any Person
consolidates with, or merges with or into, the Borrower, in any such event pursuant to a
transaction in which any of the outstanding Voting Stock of the Borrower is converted into or
exchanged for cash, securities or other property, other than any such transaction where the Voting
Stock of the Borrower outstanding immediately prior to such transaction is converted into or
exchanged for Voting Stock of the surviving or transferee Person constituting a majority of the
outstanding shares of such Voting Stock of such surviving or transferee Person (immediately after
giving effect to such issuance).

     “Closing Date” means September 29, 2008.

     “Code” means the United States Internal Revenue Code of 1986, as amended, reformed or
otherwise modified from time to time, and any successor statute and all rules and regulations
promulgated thereunder.

     “Collateral” means all the “Collateral” as defined in any Security Document.

     “Complete Rig” means any Rig that has been designated as such in the most recently
delivered Appraisal Report (for the avoidance of doubt, a Rig undergoing refurbishment will be
deemed a Complete Rig for purposes of the Borrowing Base to the extent it is listed as a Complete
Rig in the Appraisal Report, valued based on comparable sales versus components in the Appraisal
Report and for which the Borrower could certify, if requested, that less than $300,000.00 of
expenditures are remaining for the Rig to be able to begin work under a drilling contract) or, only
in case of calculating Rig Utilization, which was designated as such in any previous Appraisal
Report.

     “Compliance Certificate” means a Compliance Certificate signed by a Financial Officer
of the Borrower in substantially the form of the attached Exhibit B.

     “Confidential Information Memorandum” means the Confidential Executive Summary dated
August 2008 (together with all amendments and supplements thereto prepared by the Arrangers based
on information provided by the Borrower) and furnished to the initial Lenders in connection with
the syndication of the Revolving Advances made hereunder.

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     “Consolidated Debt” means, for any period, the Debt of the Borrower and its
Subsidiaries calculated on a consolidated basis in accordance with GAAP for such period.

     “Consolidated EBITDA” means, for any period, without duplication, the sum of the
following for the Borrower and its Subsidiaries on a consolidated basis, each calculated for such
period:

     (a) Consolidated Net Income for such period of determination plus to the extent
deducted in determining Consolidated Net Income,

     (i) charges against income for foreign, federal, state, and local taxes plus

     (ii) charges against income for depreciation and amortization expense plus

     (iii) charges against income for other non-cash charges, extraordinary, unusual or
non-recurring expenses or losses plus

     (iv) any losses on sales of assets outside the ordinary course of business plus

     (v) Consolidated Interest Expense, including amortization of deferred financing costs
and other fees, commissions, charges, expenses, discounts and up-front costs incurred in
respect of letters of credit or Debt permitted hereunder and non-cash adjustments to any
obligations under Swap Contracts required by GAAP plus

     (vi) all non-cash charges or losses, including (x) non-cash compensation costs in
connection with the issuance of Equity Interests of the Borrower to officers and employees
of the Borrower and its Subsidiaries and (y) non-cash expenses with respect to the right to
repurchase the Equity Interests of the Borrower issued to officers and employees of the
Borrower and its Subsidiaries plus

     (vii) transaction costs and other cash expenses incurred in connection with any
Investment permitted under Section 6.05, or the issuance or registration of Equity
Interests (in each case, whether or not consummated) plus

     (viii) expenses incurred in connection with any investment permitted under
Section 6.05 to the extent actually reimbursed by the obligor under the
indemnification provisions of the agreement pursuant to which such Investment was
consummated plus

     (ix) to the extent reimbursed by insurance, expenses with respect to liability or
casualty events or business interruption,

     (b) minus, to the extent included in calculating such Consolidated Net Income,

     (i) extraordinary or non-recurring gains for such period minus

     (ii) any gain realized upon the sale or other disposition of any assets of the Borrower
or any of its Subsidiaries for such period (other than in the ordinary course of business)
minus

7

 

     (iii) the income of any Person (other than Wholly-Owned Subsidiaries of the Borrower)
in which the Borrower or a Wholly-Owned Subsidiary of the Borrower has an ownership interest
except to the extent such income is received by the Borrower or such Wholly-Owned Subsidiary
in a cash distribution during such period, all as determined on a consolidated basis in
accordance with GAAP, plus the loss or minus the income

     (iv) of any Person accrued prior to the date it becomes a Subsidiary of the Borrower or
is merged into or consolidated with the Borrower or any of its Subsidiaries, minus

     (v) non-cash gains, losses or adjustments under FASB Statement 133 as a result of
changes in the fair market value of derivatives.

     “Consolidated Interest Expense” means, for any period, the interest expense of the
Borrower and its Subsidiaries, but excluding (a) deferred finance charges, (b) any fees, expenses
and costs associated with the renegotiation of Debt in existence on the Closing Date, and (c) costs
associated with obtaining any Swap Contracts, calculated on a consolidated basis in accordance with
GAAP for such period.

     “Consolidated Net Income” means, for any period, the net income of the Borrower and
its Subsidiaries calculated on a consolidated basis for such period after taxes, as determined in
accordance with GAAP, provided that there shall be (a) included, without duplication, the income
(or loss) of any Person (other than an Subsidiary of the Borrower whose net income is consolidated
into the net income of the Borrower in accordance with GAAP) in which the Borrower has an
ownership interest, whether or not any such net income is actually received by the Borrower or such
Subsidiary in the form of dividends to the extent that the indebtedness of such Person is included
in the Debt of the Borrower or any of its Subsidiaries for the purpose of this Agreement and (b)
provided further that there shall be excluded (x) any one-time increase or decrease to net income
which is required to be recorded because of the adoption of new accounting policies, practices or
standards required by GAAP, and (y) any non-cash goodwill or other intangible asset impairment
charges incurred subsequent to the Closing Date resulting from the application of the Financial
Accounting Standards Board’s Statement of Financial Accounting Standards No. 142 (or similar
pronouncements).

     “Consolidated Total Net Cash” means the sum of (i) accounts in accordance with GAAP
classified as unrestricted (A) cash or cash equivalents, (B) marketable securities, or (C) other
Cash Equivalents less (ii) the Borrowing Base Availability.

     “Continue”, “Continuation”, and “Continued” each refers to a
continuation of Revolving Advances for an additional Interest Period upon the expiration of the
Interest Period then in effect for such Revolving Advances.

     “Continuing Directors” means, as of any date of determination, any member of the Board
of Directors of the Borrower who (a) was a member of such Board of Directors on the Closing Date or
(b) was nominated for election or elected to such Board of Directors with the approval of a
majority of the Continuing Directors who were members of such Board at the time of such nomination
or election.

8

 

     “Convert”, “Conversion”, and “Converted” each refers to a conversion
of Revolving Advances of one Type into Revolving Advances of another Type pursuant to
Section 2.02(b).

     “Debt,” means, for any Person, without duplication, all of the following, whether or
not included as indebtedness or liabilities in accordance with GAAP:

     (a) all obligations of such Person for borrowed money and all obligations of such Person
evidenced by bonds, debentures, notes or other similar instruments;

     (b) obligations of such Person to pay the deferred purchase price of property or services
(other than trade accounts payable in the ordinary course of business);

     (c) Capital Leases;

     (d) all obligations of such Person in respect of letters of credit, bankers’ acceptances, bank
guarantees, surety bonds or similar instruments which are issued upon the application of such
Person or upon which such Person is an account party or for which such Person is in any way liable;

     (e) net obligations of such Person under any Swap Contract;

     (f) Off-Balance Sheet Liabilities;

     (g) indebtedness secured by a Lien on Property now or hereafter owned or acquired by such
Person (including indebtedness arising under conditional sales or other title retention
agreements), whether or not such indebtedness shall have been assumed by such Person or is limited
in recourse

     (provided, that if such Person has not assumed or otherwise become liable in respect of such
Debt, such Debt shall be deemed to be in a principal amount equal to the lesser of the principal
amount of such Debt and the fair market value of the Property encumbered by such Lien); and

     (h) all Guarantees of such Person in respect of any of the foregoing.

     For all purposes hereof, the Debt of any Person shall include the Debt of any partnership or
joint venture (other than a joint venture that is itself a corporation or limited liability
company) in which such Person is a general partner or a joint venturer, unless such Debt is
expressly made non-recourse to such Person. The amount of any net obligation under any Swap
Contract on any date shall be deemed to be the Swap Termination Value thereof as of such date. The
amount of any Capital Lease or Off-Balance Sheet Liability as of any date shall be deemed to be the
amount of Attributable Indebtedness in respect thereof as of such date. Notwithstanding the
foregoing, it is understood and agreed that Debt shall not include (x) obligations under agreements
providing for the adjustment of the purchase price, working capital or similar adjustments in
connection with any Investment or Asset Disposition permitted under this Agreement or (y)
obligations which are classified as liabilities on a Person’s balance sheet in accordance with GAAP
in connection with a non-compete, consulting or other similar agreement entered into after the
Closing Date.

9

 

     “Debt Incurrence” means any issuance for cash by any Loan Party or any of its
Subsidiaries of any Debt after the Closing Date.

     “Default” means (a) an Event of Default or (b) any event or condition which with
notice or lapse of time or both would, unless cured or waived, become an Event of Default.

     “Dollars” and “$” means the lawful money of the United States of America.

     “Domestic Subsidiary” means a Subsidiary that is organized or incorporated under the
laws of the United States or a State thereof.

     “Effective Date” means the date on which the conditions precedent set forth in
Section 3.01 shall have been satisfied, which date shall not be later than September 30,
2008.

     “Eligible Assignee” means (a) a Lender, (b) an Affiliate of a Lender, (c) an Approved
Fund, and (d) any other Person (other than a natural person) approved by the Administrative Agent
in its sole discretion, and, so long as no Event of Default exists, the Borrower, in either case,
such approval not to be unreasonably withheld or delayed; provided that notwithstanding the
foregoing, “Eligible Assignee” shall not include the Borrower or any of the Borrower’s Affiliates
or Subsidiaries.

     “Environmental Claim” means any notice of violation, action, lawsuit, claim, demand or
judgment by any Governmental Authority or any Person for liability or damage, including, without
limitation, personal injury, property damage, contribution, indemnity, direct or consequential
damages, damage to the environment, nuisance, pollution, or contamination, or for fines, penalties,
fees, costs, expenses or restrictions arising under or otherwise related to an obligation under
Environmental Law.

     “Environmental Law” means all Federal, state, local and foreign laws (including common
law), treaties, regulations, rules, ordinances, codes, decrees, judgments, directives orders and
(including consent orders), relating to protection of the environment, natural resources, human
health and safety or the presence, Release of, or exposure to, Hazardous Materials, or the
generation, manufacture, processing, distribution, use, treatment, storage, transport, recycling or
handling, or the arrangement for disposal of Hazardous Materials.

     “Environmental Liability” shall mean all liabilities, obligations, damages, losses,
claims, actions, suits, judgments, fines, penalties, fees, expenses and costs (including
administrative oversight costs, natural resource damages and remediation costs), whether contingent
or otherwise, arising out of or relating to (a) compliance or non-compliance with any Environmental
Law, (b) the generation, use, handling, transportation, storage, treatment or disposal of any
Hazardous Materials, (c) exposure to any Hazardous Materials, (d) the Release of any Hazardous
Materials or (e) any contract, agreement or other consensual arrangement pursuant to which
liability is assumed or imposed with respect to any of the foregoing.

     “Environmental Permit” means any permit, license, approval or other authorization
required under any Environmental Law.

10

 

     “Equity Interests” shall mean shares of capital stock, partnership interests,
membership interests in a limited liability company, beneficial interests in a trust or other
equity interests in any person, or any obligations convertible into or exchangeable for, or giving
any person a right, option or warrant to acquire, such equity interests or such convertible or
exchangeable obligations.

     “ERISA” means the Employee Retirement Income Security Act of 1974, as amended from
time-to-time, and any successor statute and all rules and regulations promulgated thereunder.

     “ERISA Affiliate” means any trade or business (whether or not incorporated) under
common control with the Borrower within the meaning of Section 414(b) or (c) of the Code (and
Sections 414(m) and (o) of the Code for purposes of provisions relating to Section 412 of the
Code).

     “ERISA Event” means (a) a Reportable Event with respect to a Pension Plan; (b) a
withdrawal by the Borrower or any ERISA Affiliate from a Pension Plan subject to Section 4063 of
ERISA during a plan year in which it was a substantial employer (as defined in Section 4001(a)(2)
of ERISA) or a cessation of operations that is treated as such a withdrawal under Section 4062(e)
of ERISA; (c) a complete or partial withdrawal by the Borrower or any ERISA Affiliate from a
Multiemployer Plan or notification that a Multiemployer Plan is in reorganization; (d) the filing
of a notice of intent to terminate, the treatment of a Plan amendment as a termination under
Sections 4041 or 4041A of ERISA, or the commencement of proceedings by the PBGC to terminate a
Pension Plan or Multiemployer Plan; (e) an event or condition which constitutes grounds under
Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any
Pension Plan or Multiemployer Plan; or (f) the imposition of any liability under Title IV of ERISA,
other than for PBGC premiums due but not delinquent under Section 4007 of ERISA, upon the Borrower
or any ERISA Affiliate.

     “Eurocurrency Liabilities” has the meaning assigned to that term in Regulation D.

     “Eurodollar Advance” means a Revolving Advance that bears interest based on the
Eurodollar Rate.

     “Eurodollar Rate” means, with respect to a Eurodollar Advance for the relevant
Interest Period, the applicable British Bankers’ Association Interest Settlement Rate for deposits
in Dollars appearing on Reuters Reference LIBOR01 as of 11:00 a.m. (London, England time) two
Business Days prior to the first day of such Interest Period, and having a maturity equal to such
Interest Period, provided that if Reuters Reference LIBOR01 is not available to the
Administrative Agent for any reason, then the applicable Eurodollar Rate for the relevant Interest
Period shall instead be the rate reasonably determined by the Administrative Agent to be the rate
at which Fortis or one of its Affiliate banks offers to place deposits in Dollars with first class
banks in the London interbank market at approximately 11:00 a.m. (London time) two Business Days
prior to the first day of such Interest Period, in the approximate amount of Fortis’ relevant
Eurodollar Advance and having a maturity equal to such Interest Period.

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     “Eurodollar Rate Reserve Percentage” of any Lender for the Interest Period for any
Eurodollar Advance means the reserve percentage applicable during such Interest Period (or if more
than one such percentage shall be so applicable, the daily average of such percentages for those
days in such Interest Period during which any such percentage shall be so applicable) under
regulations issued from time-to-time by the Federal Reserve Board for determining the maximum
reserve requirement (including, without limitation, any emergency, supplemental or other marginal
reserve requirement) for such Lender with respect to liabilities or assets consisting of or
including Eurocurrency Liabilities having a term equal to such Interest Period. The Eurodollar
Rate Reserve Percentage shall be adjusted automatically on and as of the effective date of any
change in any reserve percentage.

     “Event of Loss” means, with respect to any Property, any of the following: (a) any
loss, destruction or damage of such Property; or (b) any actual condemnation, seizure or taking, by
exercise of the power of eminent domain or otherwise, of such Property, or confiscation of such
Property or the requisition of the use of such Property, in each case of assets having a book value
of $1,000,000.00 or more, either individually or in the aggregate.

     “Events of Default” has the meaning set forth in Section 7.01.

     “Excepted Liens” means:

     (a) Liens for taxes, assessments or governmental charges or levies on its Property if the same
shall not at the time be delinquent or thereafter can be paid without penalty, or are being
contested in good faith and by appropriate proceedings diligently conducted and for which adequate
reserves in accordance with and to the extent required by GAAP shall have been set aside on its
books;

     (b) Liens imposed by law, or arising by contract or operation of law, including, without
limitation, carriers’, warehousemen’s, landlord’s, mechanics’, materialmen’s, and other similar
liens arising in the ordinary course of business which secure payment of obligations not more than
30 days past due or which are being contested in good faith by appropriate proceedings diligently
conducted and for which adequate reserves shall have been set aside on the books of the applicable
Person;

     (c) Liens incurred and pledges or deposits made in the ordinary course of business in
connection with worker’s compensation, unemployment insurance or other social security or
retirement benefits, or similar legislation, other than any Lien imposed by ERISA;

     (d) deposits to secure the performance of bids and leases (other than Debt), statutory
obligations, surety or appeal bonds (other than bonds related to judgments or litigation),
performance bonds and other obligations of a like nature incurred in the ordinary course of
business;

     (e) survey exceptions, easements, rights-of-way, restrictions and other similar encumbrances
affecting real property which, in the aggregate, are not substantial in amount, and which do not in
any case materially detract from the value of the property subject thereto or materially interfere
with the ordinary conduct of the business of the applicable Person;

12

 

     (f) any (i) interest or title of a lessor or sublessor under any lease not prohibited by this
Agreement, (ii) Lien or restriction that the interest or title of such lessor or sublessor may be
subject to, or (iii) subordination of the interest of the lessee or sublessee under such lease to
any Lien or restriction referred to in the preceding clause (ii), so long as the holder of such
Lien or restriction agrees to recognize the rights of such lessee or sublessee under such lease;

     (g) Liens arising from filed UCC financing statements relating solely to leases not prohibited
by this Agreement;

     (h) Liens in favor of customs and revenue authorities arising as a matter of law to secure
payment of customs duties in connection with the importation of goods;

     (i) any zoning or similar law or right reserved to or vested in any Governmental Authority to
control or regulate the use of any real property and which do not in any case materially detract
from the value of the property subject thereto or materially interfere with the ordinary conduct of
the business of the applicable Person;

     (j) Liens securing obligations (other than obligations representing Debt for borrowed money)
under operating, reciprocal easement or similar agreements entered into in the ordinary course of
business of the Borrower and its Subsidiaries and which do not in any case materially detract from
the value of the property subject thereto or materially interfere with the ordinary conduct of the
business of the applicable Person;

     (k) Liens (i)(x) on advances of cash or cash equivalents in favor of the seller of any
property to be acquired in an Investment permitted pursuant to Section 6.05 to be applied
against the purchase price for such Investment and (y) consisting of an agreement to dispose of any
property in a Asset Disposition permitted under Section 6.04 and (b) consisting of earnest
money deposits of cash or cash equivalents made by Borrower or any of its Subsidiaries in
connection with any letter of intent or purchase agreement in respect of an Investment permitted
pursuant to Section 6.05;

     (l) Liens arising out of conditional sale or title retention, consignment or similar
arrangements for the sale of goods entered into by Borrower or any of its Subsidiaries in the
ordinary course of business and not prohibited by this Agreement;

     (m) Liens that are contractual rights of set-off (i) of collecting or payor banks having a
right of setoff, revocation, refund or chargeback with respect to money or instruments of the
Borrower or any of its Subsidiaries on deposit with or in possession of such bank, (ii) relating to
pooled deposit or sweep accounts of Borrower or any Subsidiary to permit satisfaction of overdraft
or similar obligations incurred in the ordinary course of business of Borrower and its Subsidiaries
or (iii) relating to purchase orders and other agreements entered into with customers of Borrower
or any Subsidiary in the ordinary course of business;

     (n) Liens encumbering reasonable customary initial deposits and margin deposits and similar
Liens attaching to commodity trading accounts or other brokerage accounts incurred in the ordinary
course of business and not for speculative purposes;

13

 

     (o) Liens upon specific items of inventory or other goods and proceeds of any Person securing
such Person’s obligations in respect of bankers’ acceptances issued or created for the account of
such Person to facilitate the purchase, shipment or storage of such inventory or other goods; and

     (p) Liens imposed by law or order as a result of any proceeding before any court or regulatory
body that is being contested in good faith, and Liens that secure a judgment or other court-ordered
award or settlement as to which the Borrower or the applicable Subsidiary has not exhausted its
appellate rights and that would not otherwise constitute an Event of Default.

     “Excluded Taxes” means, with respect to the Administrative Agent, any Lender, the
Issuing Bank, or any other recipient of any payment to be made by or on account of any obligation
of the Borrower hereunder, (a) taxes imposed on or measured by its overall net income (however
denominated), and franchise taxes imposed on it (in lieu of net income taxes), by the jurisdiction
(or any political subdivision thereof) under the laws of which such recipient is organized or in
which its principal office is located or, in the case of any Lender, in which its applicable
lending office is located, (b) any branch profits taxes imposed by the United States of America or
any similar tax imposed by any other jurisdiction in which the Borrower is located and (c) in the
case of a Foreign Lender, any withholding tax that is imposed on amounts payable to such Foreign
Lender at the time such Foreign Lender becomes a party hereto (or designates a new lending office)
or is attributable to such Foreign Lender’s failure or inability (other than as a result of a
Change in Law) to comply with Section 2.11(e), except to the extent that such Foreign
Lender (or its assignor, if any) was entitled, at the time of designation of a new lending office
(or assignment), to receive additional amounts from the Borrower with respect to such withholding
tax pursuant to Section 2.11(a).

     “Federal Reserve Board” means the Board of Governors of the Federal Reserve System or
any of its successors.

     “Fee Letter” means the letter agreement dated as of August 19, 2008 among the
Borrower, the Administrative Agent and the Arrangers.

     “Financial Officer” for any Person means the chief financial officer, treasurer or
senior financial officer of such Person, as applicable.

     “Fixed Charge Coverage Ratio” means, for any period of determination, the ratio of (a)
the total for such period of Consolidated EBITDA to (b) the sum for such period of (i) Consolidated
Interest Expense plus (ii) required payments of principal of Debt (excluding the Revolving
Advances) during the next 12-month period plus (iii) all Cash Taxes plus (iv) Capital Expenditures.

     “Foreign Lender” means any Lender that is organized under the laws of a jurisdiction
other than that in which the Borrower is resident for tax purposes. For purposes of this
definition, the United States of America, each State thereof and the District of Columbia shall be
deemed to constitute a single jurisdiction.

     “Foreign Subsidiary” means any Subsidiary that is not a Domestic Subsidiary.

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     “Fortis” means Fortis SA/NV, New York Branch, as successor in interest to Fortis
Capital Corp.

     “Fund” means any Person (other than a natural person) that is (or will be) engaged in
making, purchasing, holding or otherwise investing in commercial loans and similar extensions of
credit in the ordinary course of its business.

     “GAAP” means United States generally accepted accounting principles applied on a
consistent basis.

     “Governmental Authority” means the government of the United States of America or any
other nation, or of any political subdivision thereof, whether state or local, and any agency,
authority, instrumentality, regulatory body, court, central bank, or other entity exercising
executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or
pertaining to government (including any supra-national bodies such as the European Union or the
European Central Bank).

     “Governmental Proceedings” means any action or proceedings by or before any
Governmental Authority, including, without limitation, the promulgation, enactment or entry of any
Legal Requirement.

     “Guarantors” means (a) each of the Borrower’s Domestic Subsidiaries listed on
Schedule 1.01(a) and (b) any other Person that becomes a guarantor of all or a portion of
the Obligations.

     “Guarantee” means, as to any Person, (a) any obligation, contingent or otherwise, of
such Person guaranteeing or having the economic effect of guaranteeing any Debt or other obligation
payable or performable by another Person (the “primary obligor”) in any manner, whether
directly or indirectly, and including any obligation of such Person, direct or indirect, (i) to
purchase or pay (or advance or supply funds for the purchase or payment of) such Debt or other
obligation or to purchase (or to advance or supply funds for the purchase of) any security for the
payment of such Debt or other obligation, (ii) to purchase or lease property, securities or
services for the purpose of assuring the owner of such Debt or other obligation of the payment or
performance of such Debt or other obligation, (iii) to maintain working capital, equity capital or
any other financial statement condition or liquidity or level of income or cash flow of the primary
obligor so as to enable the primary obligor to pay such Debt or other obligation, or (iv) entered
into for the purpose of assuring in any other manner the owner of such Debt or other obligation of
the payment or performance thereof or to protect such owner against loss in respect thereof (in
whole or in part), or (b) any Lien on any assets of such Person securing any Debt or other
obligation of any other Person, whether or not such Debt or other obligation is assumed by such
Person; provided, however, that the term “Guarantee” shall not include endorsements
for collection or deposit in the ordinary course of business. The amount of any Guarantee shall be
deemed to be an amount equal to the stated or determinable amount of the related primary
obligation, or portion thereof, in respect of which such Guarantee is made or, if not stated or
determinable, the maximum reasonably anticipated liability in respect thereof as determined by the
guaranteeing Person in good faith. The term “Guarantee” as a verb has a corresponding meaning.

15

 

     “Hazardous Material” means (a) any petroleum products or byproducts and (b) any
chemical, material, substance or waste that is prohibited, limited or regulated by or pursuant to
any Environmental Law.

     “Indemnified Taxes” means any Taxes other than Excluded Taxes.

     “Initial Pledged Rigs” means each of the Rigs listed on the attached Schedule
1.01(b) and identified as being pledged to the Administrative Agent for the benefit of the
Secured Parties.

     “Interest Period” means, for each Eurodollar Advance comprising part of a Borrowing,
the period commencing on the date of such Eurodollar Advance or the date of the Conversion of any
existing Base Rate Advance into such Eurodollar Advance and ending on the last day of the period
selected by the Borrower pursuant to the provisions below and Section 2.02 and, thereafter,
each subsequent period commencing on the last day of the immediately preceding Interest Period and
ending on the last day of the period selected by the Borrower pursuant to the provisions below and
Section 2.02. The duration of each such Interest Period shall be one, two, three, or six
months, in each case as the Borrower may select; provided, however, that:

     (a) Interest Periods commencing on the same date for Revolving Advances by each Lender
comprising part of the same Borrowing shall be of the same duration;

     (b) whenever the last day of any Interest Period would otherwise occur on a day other than a
Business Day, the last day of such Interest Period shall be extended to occur on the next
succeeding Business Day, provided that if such extension would cause the last day of such Interest
Period to occur in the next following calendar month, the last day of such Interest Period shall
occur on the next preceding Business Day;

     (c) any Interest Period which begins on the last Business Day of a calendar month (or on a day
for which there is no numerically corresponding day in the calendar month at the end of such
Interest Period) shall end on the last Business Day of the calendar month in which it would have
ended if there were a numerically corresponding day in such calendar month; and

     (d) no Borrower may select any Interest Period for any Advance which ends after the Maturity
Date.

     “Interim Financial Statements” means the unaudited consolidated balance sheet of the
Borrower and its Subsidiaries as of June 30, 2008, together with the related consolidated
statements of income or operations and cash flows for such fiscal quarter of the Borrower and its
Subsidiaries.

     “Investment” of any Person means any investment of such Person so classified under
GAAP, and whether or not so classified, any loan, advance (other than prepayments or deposits made
in the ordinary course of business) or extension of credit that constitutes Debt of the Person to
whom it is extended or contribution of capital by such Person; and any stocks, bonds, mutual funds,
partnership interests, notes (including structured notes), debentures or other securities owned by
such Person (but excluding capital expenditures of such Person determined in accordance with GAAP).
For purposes of covenant compliance, the amount of any Investment

16

 

shall be the amount actually invested, without adjustment for subsequent increases or
decreases in the value of such Investment.

     “Issuing Bank” means Fortis or any other Lender that has issued, or has a commitment
to issue, Letters of Credit.

     “LC Cash Collateral Account” means special interest bearing cash collateral accounts
pledged by the Borrower to the Administrative Agent for the ratable benefit of the Secured Parties
containing cash deposited pursuant to Section 2.14(e), 7.02 or 7.03 to be
maintained at the Administrative Agent’s office in accordance with Section 2.14(g) and bear
interest or be invested in the Administrative Agent’s reasonable discretion.

     “Legal Requirement” means, as to any Person, any law, statute, ordinance, decree,
award, requirement, order, writ, judgment, injunction, rule, regulation (or official interpretation
of any of the foregoing) of, and the terms of any license or permit issued by, any Governmental
Authority which is binding on such Person.

     “Lenders” means the lenders listed on the signature pages of this Agreement and any
other person that has become a party hereto pursuant to an Assignment and Acceptance (other than
any such person that has ceased to be a party hereto pursuant to an Assignment and Acceptance).

     “Letter of Credit” means any letter of credit issued hereunder.

     “Letter of Credit Application” means (a) a request for issuance of a Letter of Credit
in substantially the form of the attached Exhibit C and (b) an application and agreement
for the issuance or amendment of a Letter of Credit in the form from time to time in use by the
Issuing Bank.

     “Letter of Credit Documents” means, with respect to any Letter of Credit, such Letter
of Credit, the related Letter of Credit Application and any agreements, documents, and instruments
entered into in connection with or relating to such Letter of Credit.

     “Letter of Credit Exposure” means, at any time, the sum of (a) the aggregate undrawn
maximum face amount of each Letter of Credit at such time and (b) the aggregate unpaid amount of
all Reimbursement Obligations owing with respect to such Letters of Credit at such time.

     “Letter of Credit Obligations” means any obligations of the Borrower under this
Agreement in connection with the Letters of Credit, including the Reimbursement Obligations.

     “Lien” shall mean, with respect to any asset, (a) any mortgage, deed of trust, lien
(statutory or other), pledge, assignment, preference, deposit arrangement, encumbrance, charge,
security interest, priority or other security or preferential arrangement of any kind or nature
whatsoever, whether voluntary or involuntary in or on such asset, and (b) the interest of a vendor
or a lessor under any conditional sale agreement, capital lease or title retention agreement (or
any financing lease having substantially the same economic effect as any of the foregoing) relating
to such asset.

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     “Liquidity” means the sum of (a) Consolidated Total Net Cash and (b) Borrowing Base
Availability.

     “Loan Documents” means this Agreement, any Notes issued pursuant to Section
2.02(g), the Letter of Credit Documents, the Security Documents, the Fee Letter and each other
agreement, instrument or document executed by any Loan Party or any of their respective officers at
any time in connection with this Agreement, all as amended, restated, supplemented or modified from
time to time.

     “Loan Party” means the Borrower and any Guarantor.

     “Majority Lenders” means, as of any date of determination, (a) before the Revolving
Commitments terminate, Lenders holding more than 50% of the then aggregate Revolving Commitments
and (b) thereafter, Lenders holding more than 50% of the aggregate unpaid principal amount of the
Revolving Advances and participation interests in the Letter of Credit Exposure at such time.

     “Material Adverse Effect” shall mean a material adverse effect upon (a) the business,
results of operations, Properties or condition (financial or otherwise) of the Borrower and its
Subsidiaries taken as a whole, (b) the ability of any Loan Party to perform its obligations under
any Loan Document to which it is a party or (c) the validity or enforceability against any Loan
Party of any of the Loan Documents or the rights or remedies of the Administrative Agent or the
Lenders thereunder.

     “Maturity Date” means September 29, 2013.

     “Maximum Rate” means the maximum nonusurious interest rate under applicable law
(determined under such laws after giving effect to any items which are required by such laws to be
construed as interest in making such determination, including without limitation if required by
such laws, certain fees and other costs).

     “Merger Litigation” means the pending Oklahoma and Delaware actions described in the
Borrower’s Form 10-Q filed with the SEC on August 8, 2008.

     “Multiemployer Plan” means any employee benefit plan of the type described in
Section 4001(a)(3) of ERISA, to which the Borrower or any ERISA Affiliate makes or is obligated to
make contributions, or during the preceding five plan years, has made or been obligated to make
contributions.

     “Net Debt Incurrence Proceeds” means, with respect to any Debt Incurrence, all cash
proceeds received by the Borrower or any of its Subsidiaries from such Debt Incurrence after
payment of, or provision for, all brokerage commissions and other reasonable out-of-pocket fees and
expenses actually incurred in connection therewith in favor of any Person not an Affiliate of
Borrower or any other Loan Party.

     “Net Equity Issuance Proceeds” means, in respect of any issuance of Equity Interests
of the Borrower or any of its Subsidiaries, cash proceeds received in connection therewith, net of
underwriting discounts and commissions and out-of-pocket costs and expenses and

18

 

disbursements paid or incurred in connection therewith in favor of any Person not an Affiliate
of Borrower or any other Loan Party.

     “Net Proceeds” means proceeds in cash, checks or other cash equivalent financial
instruments (including Cash Equivalents) as and when received by the Person making an Asset
Disposition and insurance proceeds received on account of an Event of Loss, net of: (a) in the
event of an Asset Disposition (i) the direct costs relating to such Asset Disposition excluding
amounts payable to any Loan Party or any Affiliate of a Loan Party, (ii) sale, use or other
transaction taxes incurred as a result thereof, and (iii) amounts required to be applied to repay
principal, interest and prepayment premiums and penalties on Debt secured by a Lien on the Property
which is the subject of such Asset Disposition, (iv) any amounts required to be deposited into
escrow in connection with the closing of such Asset Disposition (until any such amounts are
released therefrom to Borrower or any of its Subsidiaries), (v) the amount of any reserve for
adjustment in respect of the sale price of such asset or assets as determined in accordance with
GAAP, (vi) appropriate amounts to be provided by Borrower or any of its Subsidiaries as a reserve
against any liabilities associated with such Asset Disposition, as determined in accordance with
GAAP, and (vii) all distributions and other payments required to be made to minority interest
holders in Subsidiaries or joint ventures as a result of such Asset Disposition and (b) in the
event of an Event of Loss, (i) all money actually applied or to be applied to repair or reconstruct
the damaged Property or Property affected by the condemnation or taking, (ii) all of the costs and
expenses incurred in connection with the collection of such proceeds, award or other payments, and
(iii) any amounts retained by or paid to parties having superior rights to such proceeds, awards or
other payments.

     “Non-Consenting Lender” has the meaning set forth in Section 2.15.

     “Note” means a promissory note made by the Borrower in favor of a Lender evidencing
Revolving Advances made by such Lender substantially in the form of Exhibit D.

     “Notice of Borrowing” means a notice of borrowing in the form of the attached
Exhibit E signed by a Responsible Officer of the Borrower.

     “Notice of Conversion or Continuation” means a notice of conversion or continuation in
the form of the attached Exhibit F signed by a Responsible Officer of the Borrower.

     “Obligations” means all advances to, and debts, liabilities, obligations, covenants
and duties of, any Loan Party arising under any Loan Document with respect to any Advance, Letter
of Credit or any Swap Contract to which a Lender or its Affiliate is a party, whether direct or
indirect (including those acquired by assumption), absolute or contingent, due or to become due,
now existing or hereafter arising and including interest and fees that accrue after the
commencement by or against any Loan Party or any Affiliate thereof of any proceeding under any law
relating to bankruptcy, insolvency or reorganization or relief of debtors naming such Person as the
debtor in such proceeding, regardless of whether such interest and fees are allowed claims in such
proceeding.

19

 

     “Off-Balance Sheet Liability” of a Person means (a) any asset or receivable
securitization transaction of such Person, or (b) Synthetic Lease Obligations, other than any lease
that constitutes an Operating Lease.

     “Operating Lease” of a Person means any lease of Property (other than a Capital Lease)
by such Person as lessee which has an original term (including any required renewals and any
renewals effective at the option of the lessor) of one year or more.

     “Orderly Liquidation Value” means with respect to any Complete Rig, the orderly
liquidation value thereof as established by the most recent Appraisal Report delivered to
Administrative Agent in accordance with Section 5.14(a) hereof, taking into account any
Event of Loss or Asset Disposition that has occurred since the most recent Appraisal Report was
delivered with respect to such Rig.

     “Other Taxes” means all present or future stamp or documentary taxes or any other
excise or property taxes, charges or similar levies arising from any payment made hereunder or
under any other Loan Document or from the execution, delivery or enforcement of, or otherwise with
respect to, this Agreement or any other Loan Document.

     “PBGC” means the Pension Benefit Guaranty Corporation or any entity succeeding to any
or all of its functions under ERISA.

     “Permitted Liens” has the meaning set forth in Section 6.01.

     “Person” means and includes natural persons, corporations, limited partnerships,
general partnerships, limited liability companies, limited liability partnerships, joint stock
companies, joint ventures, associations, companies, trusts, banks, trust companies, land trusts,
business trusts or other organizations, whether or not legal entities, and governments and agencies
and political subdivisions thereof.

     “Pension Plan” means any “employee pension benefit plan” (as such term is defined in
Section 3(2) of ERISA), other than a Multiemployer Plan, that is subject to Title IV of ERISA and
is sponsored or maintained by the Borrower or any ERISA Affiliate or to which the Borrower or any
ERISA Affiliate contributes or has an obligation to contribute, or in the case of a multiple
employer or other plan described in Section 4064(a) of ERISA, has made contributions at any time
during the immediately preceding five plan years.

     “Plan” means any Pension Plan or any Multiemployer Plan.

     “Pledge Agreement” means the Pledge Agreement in substantially the form of Exhibit
G among one or more of the Loan Parties and the Administrative Agent for the benefit of the
Secured Parties.

     “Pledged Rigs” means the Initial Pledged Rigs and Rigs becoming subject to an
Acceptable Security Interest pursuant to Section 5.09.

     “Prime Rate” means the rate last quoted by The Wall Street Journal as the “base rate
on corporate loans posted by at least 75% of the nation’s largest banks” in the United States or,
if

20

 

The Wall Street Journal ceases to quote such rate, the highest per annum interest rate
published by the Federal Reserve Board in Federal Reserve Statistical Release H.15 (519) (Selected
Interest Rates) as the “bank prime loan” rate or, if such rate is no longer quoted therein, any
similar rate quoted therein (as determined by Administrative Agent) or any similar release by the
Federal Reserve Board (as determined by Administrative Agent), whether or not the Borrower has
notice thereof, when and as said prime rate changes.

     “Projections” means the Borrower’s forecasted consolidated: (a) balance sheets; (b)
profit and loss statements; and (c) cash flow statements, for fiscal years 2008, 2009, and 2010,
together with appropriate supporting details and a statement of underlying assumptions.

     “Property” of any Person means any interest of such Person in any property or asset
(whether real, personal or mixed, tangible or intangible).

     “Pro Rata Share” means, with respect to each Lender at any time, (a) before the
Revolving Commitments terminate, the ratio (expressed as a percentage) of such Lender’s Revolving
Commitment to the aggregate Revolving Commitments and (b) thereafter, the ratio (expressed as a
percentage) of such Lender’s aggregate outstanding Revolving Advances at such time to the aggregate
outstanding Revolving Advances of all the Lenders at such time. The initial Pro Rata Share of each
Lender is set forth opposite the name of such Lender on Schedule 2.01 or in the Assignment
and Assumption pursuant to which such Lender becomes a party hereto, as applicable.

     “Qualified Investment” means expenditures incurred to acquire or repair assets owned
(or to be owned) by a Loan Party of the same type as those subject to such Reinvestment Event or
equipment or real property owned (or to be owned) by and useful in the business of a Loan Party.

     “Regulations T, U, X and D” means Regulations T, U, X, and D of the Federal Reserve
Board, as the same is from time-to-time in effect, and all official rulings and interpretations
thereunder or thereof.

     “Reimbursement Obligations” means all of the obligations of the Borrower to reimburse
the Issuing Bank for amounts paid by the Issuing Bank under Letters of Credit as established by the
Letter of Credit Applications and Section 2.14(c).

     “Reinvestment Deferred Amount” means the aggregate Net Proceeds received by any Loan
Party in connection with an Asset Disposition or an Event of Loss that are duly specified in a
Reinvestment Notice as not being required to be initially applied to prepay the Revolving Advances
pursuant to Section 2.07(c)(iii) as a result of the delivery of such Reinvestment Notice.

     “Reinvestment Event” means any Asset Disposition or Event of Loss in respect of which
Borrower has delivered a Reinvestment Notice.

     “Reinvestment Notice” means a written notice executed by the Borrower stating that no
Default or Event of Default has occurred and is continuing and stating that the Borrower intends
and expects to use all or a specified portion of the Net Proceeds of a Reinvestment Event specified
in such notice to make a Qualified Investment.

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     “Reinvestment Prepayment Amount” means with respect to any Reinvestment Event, the
Reinvestment Deferred Amount relating thereto less the portion, if any, thereof expended prior to
the relevant Reinvestment Prepayment Date to make a Qualified Investment.

     “Reinvestment Prepayment Date” means the earlier of (a) the date occurring six months
after such Reinvestment Event and (b) the date on which Borrower shall have determined not to, or
shall have otherwise ceased to, make a Qualified Investment with all or any portion of the relevant
Reinvestment Deferred Amount.

     “Related Parties” means, with respect to any Person, such Person’s Affiliates and the
partners, directors, officers, employees, agents and advisors of such Person and of such Person’s
Affiliates.

     “Release” means any release, spill, emission, leaking, dumping, injection, pouring,
deposit, disposal, discharge, dispersal, leaching or migration into or through the environment or
within or upon any building, structure, facility or fixture.

     “Reportable Event” means any of the events set forth in Section 4043(c) of ERISA for
which notice to the PBGC has not been waived.

     “Responsible Officer” for any Person means, the Chief Executive Officer, President,
Chief Financial Officer, any Executive or Senior Vice President, Vice President, Treasurer or any
other member of senior management of such Person.

     “Restricted Payment” means: (a) the declaration or making by the Borrower or any
Subsidiary of any dividend or other distribution (whether in cash, securities or other property)
with respect to any Equity Interest of such Person; (b) any payment (whether in cash, securities or
other property), including any sinking fund or similar deposit, on account of the purchase,
redemption, retirement, acquisition, cancellation or termination of any Equity Interests in the
Borrower or any Subsidiary or any option, warrant or other right to acquire any such Equity
Interests in the Borrower or any Subsidiary; (c) any payment or prepayment (scheduled or otherwise)
of principal of, premium, if any, or interest on, any Subordinated Debt, or the issuance of a
notice of an intention to do any of the foregoing of the Borrower or any Subsidiary; and (d) any
management fee, consulting fee, advisory fee, investment banking or transaction fee or commission,
bonus, salary, or similar remuneration paid or payable, or any loans, advances or similar
investments made, to any Affiliate of the Borrower or any payment to any such Affiliate with
respect to any allocation of overhead costs and expenses, excluding salaries, bonuses and
commissions payable to officers, directors and employees and directors’ fees and executive
compensation and benefits, in each case, payable in the ordinary course of business consistent with
past practice.

     “Revolving Advance” means an advance by a Lender to the Borrower as part of a
Borrowing and refers to a Base Rate Advance or a Eurodollar Advance.

     “Revolving Commitment” means, as to each Lender, its obligation to (a) make Revolving
Advances to the Borrower pursuant to Section 2.01, and (b) purchase participation in L/C
Obligations pursuant to Section 2.14(b), in an aggregate principal amount at any one time
outstanding not to exceed the amount set forth opposite such Lender’s name on Schedule 2.01
or

22

 

in the Assignment and Assumption pursuant to which such Lender becomes a party hereto, as
applicable, as such amount may be adjusted from time to time in accordance with this Agreement.
The initial aggregate amount of the Revolving Commitments is $150,000,000.00.

     “Rig” means a drilling rig and its substructure, engine, braking system, drill pipe,
drill collar and related equipment and parts (including spare parts related to such Rig).

     “Rig Utilization” means, at any time of its determination, the percentage obtained by
dividing (a) the number of Active Rigs of the Loan Parties by (b) the aggregate number of Complete
Rigs of the Loan Parties at such time.

     “Sale and Leaseback Transaction” means a transaction or series of transactions
pursuant to which the Borrower or any Subsidiary shall sell or transfer to any Person (other than
the Borrower or a Subsidiary) any Property, whether now owned or hereafter acquired, and, as part
of the same transaction or series of transactions, the Borrower or such Subsidiary shall rent or
lease as lessee (other than pursuant to a capital lease), or similarly acquire the right to
possession or use of, such Property.

     “SEC” means the Securities and Exchange Commission, and any successor entity.

     “Secured Parties” means the Administrative Agent, the Lenders, the Issuing Bank, the
Swap Counterparties and the beneficiaries of each indemnification obligation undertaken by any Loan
Party under any Loan Document.

     “Security Agreement” means the Security Agreement in substantially the form of
Exhibit H among one or more of the Loan Parties and the Administrative Agent for the
benefit of the Secured Parties.

     “Security Documents” means the Security Agreement, the Pledge Agreement and each other
document, instrument or agreement executed in connection therewith or otherwise executed in order
to secure all or a portion of the Obligations.

     “Subordinated Debt” means any Debt of the Borrower or any of its Subsidiaries which is
subordinated to their respective obligations under the Loan Documents in a manner satisfactory to
the Administrative Agent and the Majority Lenders and which is otherwise on terms and conditions
satisfactory to the Administrative Agent and the Majority Lenders.

     “Subject Lender” has the meaning set forth in Section 2.15.

     “Subsidiary” of a Person means any corporation, association, partnership or other
business entity of which more than 50% of the outstanding Equity Interests having by the terms
thereof ordinary voting power under ordinary circumstances to elect a majority of the board of
directors or Persons performing similar functions (or, if there are no such directors or Persons,
having general voting power) of such entity (irrespective of whether at the time Equity Interests
of any other class or classes of such entity shall or might have voting power upon the occurrence
of any contingency) is at the time directly or indirectly owned or controlled by such Person, by
such Person and one or more Subsidiaries of such Person or by one or more Subsidiaries of such

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Person. Unless otherwise indicated herein, each reference to the term “Subsidiary” shall mean
a Subsidiary of the Borrower.

     “Swap Contract” means (a) any and all rate swap transactions, basis swaps, credit
derivative transactions, forward rate transactions, commodity swaps, commodity options, forward
commodity contracts, equity or equity index swaps or options, bond or bond price or bond index
swaps or options or forward bond or forward bond price or forward bond index transactions, interest
rate options, forward foreign exchange transactions, cap transactions, floor transactions, collar
transactions, currency swap transactions, cross-currency rate swap transactions, currency options,
spot contracts, or any other similar transactions or any combination of any of the foregoing
(including any options to enter into any of the foregoing), whether or not any such transaction is
governed by or subject to any master agreement, and (b) any and all transactions of any kind, and
the related confirmations, which are subject to the terms and conditions of, or governed by, any
form of master agreement published by the International Swaps and Derivatives Association, Inc.,
any International Foreign Exchange Master Agreement, or any other master agreement (any such master
agreement, together with any related schedules, a “Master Agreement”), including any such
obligations or liabilities under any Master Agreement.

     “Swap Counterparty” means any Lender or any Affiliate thereof that is party to a Swap
Contract with the Borrower or one of its Subsidiaries.

     “Swap Termination Value” means, in respect of any one or more Swap Contracts, after
taking into account the effect of any legally enforceable netting agreement relating to such Swap
Contracts, (a) for any date on or after the date such Swap Contracts have been closed out and
termination value(s) determined in accordance therewith, such termination value(s), and (b) for any
date prior to the date referenced in clause (a), the amount(s) determined as the mark-to-market
value(s) for such Swap Contracts, as determined based upon one or more mid-market or other readily
available quotations provided by any recognized dealer in such Swap Contracts (which may include a
Lender or any Affiliate of a Lender).

     “Synthetic Lease Obligation” means the monetary obligation of a Person under (a) a
so-called synthetic, off-balance sheet or tax retention lease, or (b) an agreement for the use or
possession of Property creating obligations that do not appear on the balance sheet of such Person
but which, upon the insolvency or bankruptcy of such Person, would be characterized as the
indebtedness of such Person (without regard to accounting treatment).

     “Taxes” means all present or future taxes, levies, imposts, duties, deductions,
withholdings, assessments, fees or other charges imposed by any Governmental Authority, including
any interest, additions to tax or penalties applicable thereto.

     “Total Leverage Ratio” means, as of the last day of any fiscal quarter of the
Borrower, the ratio of (a) Consolidated Debt (other than all obligations in respect of letters of
credit) to (b) Consolidated EBITDA for the four fiscal quarters then ended (or such other period as
provided for in the definition thereof).

     “Type” has the meaning set forth in Section 1.04.

24

 

     “UCC” means the Uniform Commercial Code as in effect on the date hereof in the State
of New York, as amended from time to time, and any successor statute.

     “Unfunded Pension Liability” means the excess of a Pension Plan’s benefit liabilities
under Section 4001(a)(16) of ERISA, over the current value of that Pension Plan’s assets,
determined in accordance with the assumptions used for funding the Pension Plan pursuant to Section
412 of the Code for the applicable plan year.

     “Voting Stock” means, with respect to any Person, Equity Interests of such Person of
any class or classes, the holders of which are ordinarily, in the absence of contingencies,
entitled to vote for the election of members of the Board of Directors (or Persons performing
similar functions) of such Person.

     “Wholly-Owned Subsidiary” of any Person shall mean a subsidiary of such Person of
which Equity Interests representing 100% of the Equity Interests (other than directors’ qualifying
shares, if any) are, at the time any determination is being made, owned, controlled or held by such
Person or one or more Wholly-Owned Subsidiaries of such Person or by such Person and one or more
Wholly-Owned Subsidiaries of such Person.

     Section 1.02 Computation of Time Periods. In this Agreement in the computation of
periods of time from a specified date to a later specified date, the word “from” means “from and
including” and the words “to” and “until” each means “to but excluding”.

     Section 1.03 Accounting Terms.

     (a) For purposes of this Agreement, all accounting terms not otherwise defined herein shall be
construed in conformity with, and all financial data (including financial ratios and other
financial calculations) required to be submitted pursuant to this Agreement shall be prepared in
conformity with, GAAP applied on a consistent basis, as in effect from time to time, applied in a
manner consistent with that used in preparing the Annual Financial Statements.

     (b) If at any time any Accounting Change (as defined below) would affect the computation of
any financial ratio or requirement set forth in any Loan Document, and either the Borrower or the
Majority Lenders shall so request, the Administrative Agent, the Lenders and the Borrower shall
negotiate in good faith to amend such ratio or requirement to preserve the original intent thereof
in light of such change in GAAP (subject to the approval of the Majority Lenders); provided
that, until so amended, (i) such ratio or requirement shall continue to be computed in accordance
with GAAP prior to such change therein and (ii) the Borrower shall provide to the Administrative
Agent and the Lenders financial statements and other documents required under this Agreement or as
reasonably requested hereunder setting forth a reconciliation between calculations of such ratio or
requirement made before and after giving effect to such change in GAAP. “Accounting Changes”
means: (A) changes in accounting principles required by GAAP and implemented by the Borrower; (B)
changes in accounting principles recommended by the Borrower’s accountants; and (C) changes in
carrying value of the Borrower’s or any of its Subsidiaries’ assets, liabilities or equity accounts
resulting from any adjustments that, in each case, were applicable to, but not included in, the Audited Financial
Statements.

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     (c) In addition, all calculations and defined accounting terms used herein shall, unless
expressly provided otherwise, when referring to any Person, refer to such Person on a consolidated
basis and mean such Person and its consolidated subsidiaries.

     Section 1.04 Types of Revolving Advances. Revolving Advances are distinguished by
“Type”. The “Type” of a Revolving Advance refers to the determination whether such Advance is a
Eurodollar Advance or a Base Rate Advance, each of which constitutes a Type.

     Section 1.05 Miscellaneous. The definitions of terms herein shall apply equally to
the singular and plural forms of the terms defined. Whenever the context may require, any pronoun
shall include the corresponding masculine, feminine and neuter forms. The words “include,”
“includes” and “including” shall be deemed to be followed by the phrase “without limitation.” The
word “will” shall be construed to have the same meaning and effect as the word “shall.” Unless the
context requires otherwise (a) any definition of or reference to any agreement, instrument or other
document herein shall be construed as referring to such agreement, instrument or other document as
from time to time amended, supplemented or otherwise modified (subject to any restrictions on such
amendments, supplements or modifications set forth herein), (b) any reference herein to any Person
shall be construed to include such Person’s successors and assigns, (c) the words “herein,”
“hereof” and “hereunder,” and words of similar import, shall be construed to refer to this
Agreement in its entirety and not to any particular provision hereof, (d) all references herein to
Articles, Sections, Exhibits and Schedules shall be construed to refer to Articles and Sections of,
and Exhibits and Schedules to, this Agreement, (e) any reference to any law or regulation herein
shall, unless otherwise specified, refer to such law or regulation as amended, modified or
supplemented from time to time and (f) the words “asset” and “property” shall be construed to have
the same meaning and effect and to refer to any and all tangible and intangible assets and
properties, including cash, securities, accounts and contract rights.

ARTICLE II

THE REVOLVING ADVANCES

     Section 2.01 The Revolving Advances. Each Lender severally agrees, on the terms and
conditions set forth in this Agreement, to make Revolving Advances to the Borrower from
time-to-time on any Business Day before the Maturity Date in an aggregate amount up to but not to
exceed at any time outstanding (i) the lesser of (A) its Revolving Commitment and (B) its Pro Rata
Share of the Borrowing Base minus (ii) such Lender’s Pro Rata Share of the Letter of Credit
Exposure; provided however that the aggregate outstanding principal amount of the
sum of (x) all Revolving Advances plus (y) the Letter of Credit Exposure shall not at any time
exceed the lesser of (1) aggregate amount of the Revolving Commitments and (2) the Borrowing Base.
Each Borrowing shall be in an aggregate amount not less than $1,000,000.00 and in integral
multiples of $1,000,000.00 in excess thereof and shall be made by the Lenders ratably according to
their respective Revolving Commitments. Within the limits of each Lender’s Revolving Commitment,
the Borrower may from time-to-time borrow, prepay pursuant to Section 2.07(b) and reborrow
under this Section 2.01.

     Section 2.02 Method of Borrowing.

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     (a) Notice. Each Borrowing shall be made pursuant to a Notice of Borrowing, given not
later than (i) if the Borrowing is comprised of Eurodollar Advances, except as set forth in
subsection (a)(ii) below, 2:00 p.m. (New York time) on the second Business Day before the requested
Borrowing Date and (ii) if the Borrowing is comprised of Base Rate Advances or is the first
Borrowing comprised of Eurodollar Advances after the Closing Date, 2:00 p.m. (New York time) at
least one Business Day in advance of the requested Borrowing Date, in each case to the
Administrative Agent’s Applicable Lending Office. The Administrative Agent shall give to each
Lender prompt notice on the day of receipt of a timely Notice of Borrowing. The Notice of
Borrowing shall be in writing specifying (A) the Borrowing Date (which shall be a Business Day),
(B) the requested Type of Revolving Advances comprising such Borrowing, (C) the aggregate amount of
such Borrowing, and (D) if such Borrowing is to be comprised of Eurodollar Advances, the requested
Interest Period. In the case of a requested Borrowing comprised of Eurodollar Advances, the
Administrative Agent shall promptly notify each Lender of the applicable interest rate under
Section 2.06(a)(ii). Each Lender shall make available its Pro Rata Share of such Borrowing
before 12:00 p.m. (New York time) on the Borrowing Date in immediately available funds to the
Administrative Agent at its Applicable Lending Office or such other location as the Administrative
Agent may specify by notice to the Lenders. After the Administrative Agent’s receipt of such funds
and upon fulfillment of the applicable conditions set forth in Article III, the
Administrative Agent will promptly make such funds available to the Borrower not later than 2:00
p.m. (New York time) at such account as the Borrower shall specify in writing to the Administrative
Agent.

     (b) Conversions and Continuations. In order to elect to Convert or Continue a
Revolving Advance under this Section, the Borrower shall deliver an irrevocable Notice of
Conversion or Continuation to the Administrative Agent at its Applicable Lending Office no later
than (i) 2:00 p.m. (New York time) at least one Business Day in advance of such requested
Conversion date in the case of a Conversion of a Eurodollar Advance to a Base Rate Advance or (ii)
2:00 p.m. (New York time) at least two Business Days in advance of such requested Conversion date
in the case of a Conversion into or Continuation of a Eurodollar Advance to another Eurodollar
Advance. Each such Notice of Conversion or Continuation shall be in writing or by telex,
telecopier or telephone, confirmed promptly in writing specifying (A) the requested Conversion or
Continuation date (which shall be a Business Day), (B) the amount, Type of the Revolving Advance to
be Converted or Continued, (C) whether a Conversion or Continuation is requested, and if a
Conversion, into what Type of Revolving Advance, and (D) in the case of a Conversion to, or a
Continuation of, a Eurodollar Advance, the requested Interest Period. Promptly after receipt of a
Notice of Conversion or Continuation under this paragraph, the Administrative Agent shall provide
each Lender with a copy thereof and, in the case of a Conversion to or a Continuation of a
Eurodollar Advance, notify each Lender of the interest rate under Sections 2.06(a)(ii). Notwithstanding anything in this Agreement to the
contrary, Conversions of Eurodollar Advances may only be made at the end of the applicable Interest
Period for such Revolving Advances; provided, however, that Conversions of Base
Rate Advances may be made at any time. The portion of Revolving Advances comprising part of the
same Borrowing that are converted to Revolving Advances of another Type shall constitute a new
Borrowing.

	 	(c)	 	Certain Limitations. Notwithstanding anything in paragraphs (a) and (b) above:

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     (i) at no time shall there be more than ten Interest Periods applicable to outstanding
Eurodollar Advances;

     (ii) if any Lender shall, at least one Business Day before the date of any requested
Borrowing, notify the Administrative Agent that any Change in Law makes it unlawful for such
Lender or any of its Applicable Lending Offices to perform its obligations under this
Agreement to make Eurodollar Advances, or to fund or maintain Eurodollar Advances, the right
of the Borrower to select Eurodollar Advances from such Lender for such Borrowing or for any
subsequent Borrowing shall be suspended until such Lender shall notify the Administrative
Agent that the circumstances causing such suspension no longer exist, and such Lender’s
Advance for such Borrowing shall be a Base Rate Advance;

     (iii) if the Administrative Agent is unable to determine the Eurodollar Rate for any
requested Borrowing and the Administrative Agent gives telephonic or telecopy notice thereof
to the Borrower as soon as practicable, the right of the Borrower to select Eurodollar
Advances or for any subsequent Borrowing and the obligation of the Lenders to make such
Eurodollar Advances shall be suspended until the Administrative Agent shall notify the
Borrower and the Lenders that the circumstances causing such suspension no longer exist, and
each Revolving Advance comprising such Borrowing shall be a Base Rate Advance;

     (iv) if the Majority Lenders shall, by 11:00 a.m. (New York time) at least one Business
Day before the date of any requested Borrowing, notify the Administrative Agent that the
Eurodollar Rate will not adequately reflect the cost to such Lenders of making or funding
their respective Eurodollar Advances and the Administrative Agent gives telephonic or
telecopy notice thereof to the Borrower as soon as practicable, the right of the Borrower to
select Eurodollar Advances for such Borrowing or for any subsequent Borrowing and the
obligation of the Lenders to make Eurodollar Advances shall be suspended until the
Administrative Agent shall notify the Borrower and the Lenders that the circumstances
causing such suspension no longer exist, and each Revolving Advance comprising such
Borrowing shall be a Base Rate Advance;

     (v) if the Borrower shall fail to select the duration or Continuation of any Interest
Period for any Eurodollar Advances in accordance with the provisions contained in the
definition of “Interest Period” in Section 1.01 and paragraphs (a) and (b) above or
shall fail to deliver a Notice of Conversion or Continuation, the Administrative Agent will
forthwith so notify the Borrower and the Lenders and such Revolving Advances will
be made available to the Borrower on the date of such Borrowing as Eurodollar Advances
with a one month Interest Period; and

     (vi) no Advance may be Converted or Continued as a Eurodollar Advance at any time when
a Default or an Event of Default has occurred and is continuing.

     (d) Notices Irrevocable. Each Notice of Borrowing and each Notice of Conversion or
Continuation delivered by the Borrower shall be irrevocable and binding on the Borrower. In the
case of the initial Borrowing or any Borrowing which the related Notice of Conversion or

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Continuation specifies is to be comprised of Eurodollar Advances, the Borrower shall indemnify each
Lender against any loss, out-of-pocket cost or expense actually incurred by such Lender as a result
of any failure to fulfill on or before the Borrowing Date or the date specified in such Notice of
Conversion or Continuation for such Borrowing the applicable conditions set forth in Article
III, including, without limitation, any loss, cost or expense actually incurred by reason of
the liquidation or reemployment of deposits or other funds acquired by such Lender to fund the
Revolving Advance to be made by such Lender as part of such Borrowing when such Advance, as a
result of such failure, is not made on such date.

     (e) Administrative Agent Reliance. Unless the Administrative Agent shall have
received notice from a Lender before the Borrowing Date that such Lender will not make available to
the Administrative Agent such Lender’s Pro Rata Share of the Borrowing, the Administrative Agent
may assume that such Lender has made its Pro Rata Share of such Borrowing available to the
Administrative Agent on the Borrowing Date in accordance with paragraph (a) of this
Section 2.02 and the Administrative Agent may, in reliance upon such assumption, make
available to the Borrower on the Borrowing Date a corresponding amount. If and to the extent that
such Lender shall not have so made its Pro Rata Share of such Borrowing available to the
Administrative Agent, such Lender and the Borrower severally agree to promptly repay to the
Administrative Agent on demand such corresponding amount, together with interest on such amount,
for each day from the date such amount is made available to the Borrower until the date such amount
is repaid to the Administrative Agent, at (i) in the case of the Borrower, the interest rate
applicable on such day to Base Rate Advances and (ii) in the case of such Lender, a rate determined
by the Administrative Agent in accordance with banking industry rules on interbank compensation.
If such Lender shall repay to the Administrative Agent such corresponding amount and interest as
provided above, such corresponding amount so repaid shall constitute such Lender’s Advance as part
of such Borrowing for purposes of this Agreement even though not made on the same day as the other
Revolving Advances comprising such Borrowing. If such Lender’s Advance as part of such Borrowing
is not made available by such Lender within three Business Days of the Borrowing Date, the Borrower
shall repay such Lender’s share of such Borrowing (together with interest thereon at the interest
rate applicable during such period to Base Rate Advances) to the Administrative Agent not later
than three Business Days after receipt of written notice from the Administrative Agent specifying
such Lender’s share of such Borrowing that was not made available to the Administrative Agent.

     (f) Lender Obligations Several. The failure of any Lender to make a Revolving Advance
to be made by it as part of any Borrowing shall not relieve any other Lender of its obligation, if
any, to make its Revolving Advance on the applicable Borrowing Date. No Lender
shall be responsible for the failure of any other Lender to make a Revolving Advance to be
made by such other Lender on any applicable Borrowing Date.

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	 	(g)	 	Noteless Agreement; Evidence of Indebtedness.

     (i) Each Lender shall maintain in accordance with its usual practice an account or
accounts evidencing the indebtedness of the Borrower to such Lender resulting from the
Revolving Advances made by such Lender from time to time, including the amounts of principal
and interest payable and paid to such Lender from time to time hereunder.

     (ii) The Administrative Agent shall also maintain accounts in which it will record (A)
the amount of each Revolving Advance made hereunder, the Type thereof and the Interest
Period with respect thereto, (B) the amount of any principal or interest due and payable or
to become due and payable from the Borrower to each Lender hereunder and (C) the amount of
any sum received by the Administrative Agent hereunder from the Borrower and each Lender’s
share thereof.

     (iii) The entries maintained in the accounts maintained pursuant to paragraphs (i) and
(ii) above shall be conclusive evidence of the existence and amounts of the Obligations
therein recorded absent manifest error; provided, however, that the failure
of the Administrative Agent or any Lender to maintain such accounts or any error therein
shall not in any manner affect the obligation of the Borrower to repay the Obligations in
accordance with their terms.

     (iv) Any Lender may request that the Revolving Advances owing to such Lender be
evidenced by a Note. In such event, the Borrower shall execute and deliver to such Lender a
Note payable to the order of such Lender and its registered assigns. Thereafter, the
Revolving Advances evidenced by such Note and interest thereon shall at all times (including
after any assignment pursuant to Section 10.06) be represented by one or more Notes
payable to the order of the payee named therein or any assignee pursuant to Section
10.06, except to the extent that any such Lender or assignee subsequently returns any
such Note for cancellation and requests that such Revolving Advances once again be evidenced
as described in paragraphs (i) and (ii) above.

     Section 2.03 Fees.

     (a) Revolving Commitment Fees. The Borrower agrees to pay to the Administrative Agent
for the account of each Lender a commitment fee (a “Commitment Fee”) on the average daily
amount by which such Lender’s Revolving Commitment exceeds the sum of (i) the aggregate principal
amount of such Lender’s outstanding Revolving Advances and (ii) such Lender’s Pro Rata Share of the
Letter of Credit Exposure, from the Closing Date until the Maturity Date at a rate per annum equal
to 0.50%. The Commitment Fees payable pursuant to this clause (a) are due quarterly in arrears on
the last Business Day of each March, June, September and December commencing December 31, 2008 and
on the Maturity Date.

     (b) Agent’s Fees. The Borrower agrees to pay to the Administrative Agent and the
Arrangers the fees as separately agreed upon by the Borrower in the Fee Letter.

     (c) Letter of Credit Fees.

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     (i) The Borrower agrees to pay to the Administrative Agent for the pro rata benefit of
each Lender a letter of credit fee at a per annum rate equal to the Applicable Margin for
Eurodollar Rate Advances in effect from time to time. Each such fee shall be based on the
maximum amount available to be drawn from time to time under such Letter of Credit from the
date of issuance of the Letter of Credit until its expiration date and shall be payable
quarterly in arrears on the last Business Day of each March, June, September and December
until the earlier of its expiration date or the Maturity Date. All such fees shall be
computed on the basis of the actual number of days elapsed in a year of 360 days.

     (ii) The Borrower agrees to pay to the Issuing Bank, a fronting fee for each Letter of
Credit equal to 0.25% per annum of the initial stated amount of such Letter of Credit (or,
with respect to any subsequent increase to the stated amount of any such Letter of Credit,
such increase in the stated amount). Each such fee shall be based on the maximum amount
available to be drawn from time to time under such Letter of Credit from the date of
issuance of the Letter of Credit until its expiration date and shall be payable quarterly in
arrears on the last Business Day of each March, June, September and December until the
earlier of its expiration date or the Maturity Date. All such fees shall be computed on the
basis of the actual number of days elapsed in a year of 360 days.

     (iii) In addition, the Borrower agrees to pay to the Issuing Bank all customary
transaction costs and fees charged by the Issuing Bank in connection with the issuance of a
Letter of Credit for the Borrower’s account, such costs and fees to be due and payable on
the date specified by the Issuing Bank in the invoice for such costs and fees.

     (d) Generally. All such fees shall be paid on the dates due, in immediately available
Dollars to the Administrative Agent for distribution, if and as appropriate, among the Lenders,
except that the fees payable pursuant to Section 2.03(c)(ii) and (iii) shall be
paid directly to the Issuing Bank. Once paid, absent manifest error, none of these fees shall be
refundable under any circumstances.

     Section 2.04 Reduction of the Revolving Commitments.

     (a) The Borrower shall have the right, upon at least five Business Days’ irrevocable notice to
the Administrative Agent, to terminate in whole or reduce ratably in part the unused portion of the
Revolving Commitments; provided that each partial reduction of Revolving Commitments shall
be in the minimum aggregate amount of $5,000,000.00 and in integral multiples of $1,000,000.00 in
excess thereof (or such lesser amount as may then be outstanding); and provided
further that the aggregate amount of the Revolving Commitments may not be reduced below the
sum of the aggregate principal amount of the outstanding Revolving Advances and the Letter of
Credit Exposure.

     (b) Any reduction or termination of the Revolving Commitments pursuant to this Section
2.04 shall be permanent, with no obligation of the Revolving Lenders to reinstate such
Revolving Commitments and the commitment fees provided for in Section 2.03(a) shall
thereafter be computed on the basis of the Revolving Commitments as so reduced. The

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Administrative Agent shall give each Lender prompt notice of any commitment reduction or termination.

     Section 2.05 Repayment. The Borrower shall repay the outstanding principal amount of
the Revolving Advances on the Maturity Date.

     Section 2.06 Interest. The Borrower shall pay interest on the unpaid principal amount
of each Revolving Advance made by each Lender to it from the date of such Revolving Advance until
such principal amount shall be paid in full, at the following rates per annum:

	 	(a)	 	Revolving Advances.

     (i) Base Rate Advances. If such Revolving Advance is a Base Rate Advance, a
rate per annum equal to the Adjusted Base Rate plus the Applicable Margin in respect
of Base Rate Advances in effect from time to time, payable in arrears on the last Business
Day of each calendar quarter and on the date such Base Rate Advance shall be paid in full.

     (ii) Eurodollar Advances. If such Revolving Advance is a Eurodollar Advance, a
rate per annum equal to the Eurodollar Rate for such Interest Period plus the
Applicable Margin in respect of Eurodollar Advances in effect on each day of such Interest
Period for Eurodollar Advances, payable in arrears on the last day of such Interest Period,
and, in the case of Interest Periods of greater than three months, on each Business Day
which occurs at three month intervals from the first day of such Interest Period.

     (b) Additional Interest on Eurodollar Advances. The Borrower shall pay to each
Lender, so long as any such Lender shall be required under regulations of the Federal Reserve Board
to maintain reserves with respect to liabilities or assets consisting of or including Eurocurrency
Liabilities, additional interest on the unpaid principal amount of the Eurodollar Advances of such
Lender, from the effective date of such Advance until such principal amount is paid in full, at an
interest rate per annum equal at all times to the remainder obtained by subtracting (i) the
Eurodollar Rate for the Interest Period for such Advance from (ii) the rate obtained by dividing
such Eurodollar Rate by a percentage equal to 100% minus the Eurodollar Rate Reserve Percentage of
such Lender for such Eurodollar Advances for such Interest Period, payable on each date on which
interest is payable on such Advance. Such additional interest payable to any Lender shall be
determined by such Lender and notified to the Borrower through the Administrative Agent (such
notice to include the calculation of such additional interest, which calculation shall be
conclusive absent manifest error, and be accompanied by any evidence indicating the need for such
additional interest as the Borrower may reasonably request).

     (c) Usury Recapture. In the event the rate of interest chargeable under this
Agreement at any time (calculated after giving affect to all items charged which constitute
“interest” under applicable laws, including fees and margin amounts, if applicable) is greater than
the Maximum Rate, the unpaid principal amount of the Revolving Advances shall bear interest at the
Maximum Rate until the total amount of interest paid or accrued on the Revolving

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Advances equals the amount of interest which would have been paid or accrued on the Revolving Advances if the
stated rates of interest set forth in this Agreement had at all times been in effect.

          In the event, upon payment in full of the Revolving Advances, the total amount of interest
paid or accrued under the terms of this Agreement and the Revolving Advances is less than the total
amount of interest which would have been paid or accrued if the rates of interest set forth in this
Agreement had, at all times, been in effect, then the Borrower shall, to the extent permitted by
applicable law, pay the Administrative Agent for the account of the Lenders an amount equal to the
difference between (i) the lesser of (A) the amount of interest which would have been charged on
its Revolving Advances if the Maximum Rate had, at all times, been in effect and (B) the amount of
interest which would have accrued on its Revolving Advances if the rates of interest set forth in
this Agreement had at all times been in effect and (ii) the amount of interest actually paid under
this Agreement on its Revolving Advances.

          In the event the Lenders ever receive, collect or apply as interest any sum in excess of the
Maximum Rate, such excess amount shall, to the extent permitted by law, be applied to the reduction
of the principal balance of the Revolving Advances, and if no such principal is then outstanding,
such excess or part thereof remaining shall be paid to the Borrower.

     (d) Default Interest. If the Borrower shall default in the payment of the principal
of or interest on any Advance or any other amount becoming due hereunder, by acceleration or
otherwise, or under any other Loan Document, the Borrower shall on demand from time to time pay
interest, to the extent permitted by law, on the outstanding Revolving Advances to but excluding
the date of actual payment (after as well as before judgment) (a) in the case of overdue principal,
at the rate otherwise applicable to such Advance pursuant to Section 2.06 plus 2.00% per
annum and (b) in all other cases, at a rate per annum (computed on the basis of the actual number
of days elapsed over a year of 365 or 366 days, as the case may be, when determined by reference to
the Prime Rate and over a year of 360 days at all other times) equal to the rate that would be
applicable to a Base Rate Advance plus 2.00%.

     Section 2.07 Prepayments.

     (a) Right to Prepay. The Borrower shall have no right to prepay any principal amount
of any Advance except as provided in this Section 2.07.

     (b) Optional. The Borrower may elect to prepay, in whole or in part, any of the
Revolving Advances owing by it to the Lenders, after giving prior written notice of such election
by (i) 2:00 p.m. (New York time) at least two Business Days before such prepayment date in the case
of Borrowings which are comprised of Eurodollar Advances, and (ii) 2:00 p.m. (New York time) on or
before the Business Day of such prepayment, in case of Borrowings which are comprised of Base Rate
Advances, in each case to the Administrative Agent stating the proposed
date and aggregate principal amount of such prepayment. If any such notice is given, the
Administrative Agent shall give prompt notice thereof to each Lender and the Borrower shall prepay
Revolving Advances comprising part of the same Borrowing in whole or ratably in part in an
aggregate principal amount equal to the amount specified in such notice, together with accrued and
unpaid interest to the date of such prepayment on the principal amount prepaid

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and amounts, if any,required to be paid pursuant to Section 2.08 as a result of such prepayment being made on
such date; provided, however, that each partial prepayment shall be in an aggregate
principal amount not less than $1,000,000.00 and in integral multiples of $1,000,000.00 in excess
thereof (or such lesser amount as may then be outstanding).

	 	(c)	 	Mandatory Prepayments of Revolving Advances.

     (i) Deficiency. On any date on which the outstanding principal amount of the
Revolving Advances plus the Letter of Credit Exposure exceeds the lesser of (A) the
aggregate Revolving Commitments and (B) the Borrowing Base, the Borrower agrees to make a
mandatory prepayment of the Revolving Advances, together with accrued and upaid interest to
the date of such prepayment on the principal amount prepaid and amounts, if any, required to
be paid pursuant to Section 2.08 as a result of such prepayment being made on such
date, in the amount of such excess, or if the Revolving Advances have been repaid in full,
make deposits into the LC Cash Collateral Account in the remaining amount of such excess to
provide cash collateral for the Letter of Credit Exposure. Any such prepayment shall first
be applied to prepay Base Rate Advances, and second, to Eurodollar Advances.

     (ii) Reduction of Revolving Commitments. On the date of each reduction of the
aggregate Revolving Commitments pursuant to Section 2.04, the Borrower agrees to
make a prepayment in respect of the outstanding amount of the Revolving Advances to the
extent, if any, that the aggregate unpaid principal amount of all Revolving Advances
plus the Letter of Credit Exposure exceeds the lesser of (i) the Revolving
Commitments and (ii) the Borrowing Base.

     (iii) Asset Dispositions. If any Loan Party or any of its Subsidiaries shall
at any time or from time to time:

     (A) make or agree to make an Asset Disposition; or

     (B) suffer an Event of Loss;

then (A) Borrower shall promptly notify Administrative Agent of such proposed Asset
Disposition or Event of Loss (including the amount of the estimated Net Proceeds to be
received by any Loan Party and/or any of its Subsidiaries in respect thereof) and (B)
promptly upon receipt by such Loan Party and/or any of its Subsidiaries of the Net Proceeds
of such Asset Disposition or Event of Loss, Borrower shall deliver, or cause to be
delivered, such Net Proceeds to Administrative Agent for distribution to the Lenders as a
prepayment of the Revolving Advances, together with accrued and unpaid interest to the date
of such prepayment on the principal amount prepaid and amounts, if any, required to be paid
pursuant to Section 2.08 as a result of such prepayment being made
on such date, or if the Revolving Advances have been repaid in full, make deposits into the
LC Cash Collateral Account in the remaining amount of such excess to provide cash collateral
for the Letter of Credit Exposure; provided, however, that notwithstanding the foregoing, in
the case of any Net Proceeds constituting the Reinvestment Deferred Amount with respect to a
Reinvestment Event, Borrower shall repay the Revolving

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Advances in an amount equal to the Reinvestment Prepayment Amount applicable
to such Reinvestment Event, if any, on the Reinvestment Prepayment Date with
respect to such Reinvestment Event.

	 	(iv)	 	Equity Issuance.

     (A) If an Event of Default has occurred and is continuing, promptly upon the
receipt by any Loan Party or any of their respective Subsidiaries of the Net Equity
Issuance Proceeds of the issuance of equity securities other than to the Borrower or
any of its Subsidiaries, Borrower shall deliver, or cause to be delivered, to the
Administrative Agent an amount equal to such Net Equity Issuance Proceeds for
application to the prepayment of the Revolving Advances in the manner described in
(B) below.

     (B) Provided that no Default or Event of Default has occurred and is
continuing, promptly upon the receipt by any Loan Party or any of their respective
Subsidiaries of the Net Equity Issuance Proceeds of the issuance of equity
securities other than to the Borrower or any of its Subsidiaries, Borrower shall (1)
if any Subordinated Debt permitted pursuant to Section 6.02(h) is then
outstanding, prepay such Subordinated Debt by an amount equal to such Net Equity
Issuance Proceeds and (2) to the extent of any remaining Net Equity Issuance
Proceeds or if no Subordinated Debt is then outstanding, deliver, or cause to be
delivered, to the Administrative Agent an amount equal to such Net Equity Issuance
Proceeds, for application to the Revolving Advances, together with accrued interest
to the date of such prepayment on the principal amount prepaid and amounts, if any,
required to be paid pursuant to Section 2.08 as a result of such prepayment
being made on such date, or if the Revolving Advances have been repaid in full, make
deposits into the LC Cash Collateral Account in the remaining amount of such excess
to provide cash collateral for the Letter of Credit Exposure; provided, however,
that notwithstanding the foregoing, if no Default or Event of Default has occurred
and is continuing, the Borrower may use the Net Equity Issuance Proceeds as cash
consideration for any Acquisition permitted by Section 6.05(i) occurring on
or before 90 days after the receipt thereof. In the event, the Borrower shall have
determined not to, or shall have otherwise ceased to, make an Acquisition during
such 90-day period, the Borrower shall apply such Net Equity Issuance Proceeds to
the prepayment of Revolving Advances as described above.

     (v) Debt Incurrence. Promptly upon the receipt by any Loan Party or any of
their respective Subsidiaries of the Net Debt Incurrence Proceeds from any Debt Incurrence,
Borrower shall deliver, or cause to be delivered, such Net Debt Incurrence Proceeds to the
Administrative Agent for distribution to the Lenders as a prepayment of
the Advances, together with accrued and unpaid interest to the date of such prepayment
on the principal amount prepaid.

     (vi) Application of Prepayments. Each prepayment pursuant to this Section
2.07(c) shall be accompanied by accrued interest on the amount prepaid to the date of

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      such prepayment and amounts, if any, required to be paid pursuant to Section 2.08 as
a result of such prepayment being made on such date.

     (d) Illegality. If any Lender shall notify the Administrative Agent and the Borrower
that any Change in Law makes it unlawful for such Lender or its Applicable Lending Office to
perform its obligations under this Agreement or to make or maintain Eurodollar Advances then
outstanding hereunder (any such Lender, an “Affected Lender”), the Borrower shall, no later
than 2:00 p.m. (New York time) (i) (A) if not prohibited by any Legal Requirement to maintain such
Eurodollar Advances for the duration of the Interest Period, on the last day of the Interest Period
for each outstanding Eurodollar Advance or (B) if prohibited by any Legal Requirement to maintain
such Eurodollar Advances for the duration of the Interest Period, on the second Business Day
following its receipt of such notice, prepay all Eurodollar Advances of all of the Lenders then
outstanding, together with accrued and unpaid interest on the principal amount prepaid to the date
of such prepayment and amounts, if any, required to be paid pursuant to Section 2.08 as a
result of such prepayment being made on such date, (ii) each Lender shall simultaneously make a
Base Rate Advance or, if not otherwise prohibited, make an Eurodollar Advance in an amount equal to
the aggregate principal amount of the affected Eurodollar Advances, and (iii) the right of the
Borrower to select Eurodollar Advances shall be suspended until such Lender shall notify
Administrative Agent that the circumstances causing such suspension no longer exist. Each Lender
agrees to use commercially reasonable efforts (consistent with its internal policies and subject to
legal and regulatory restrictions) to designate a different Applicable Lending Office if the making
of such designation would avoid the effect of this paragraph and would not, in the reasonable
judgment of such Lender, be otherwise disadvantageous to such Lender.

     (e) Ratable Payments; Effect of Notice. Each payment of any Advance pursuant to this
Section 2.07 or any other provision of this Agreement shall be made in a manner such that
all Revolving Advances comprising part of the same Borrowing are paid in whole or ratably in part.
All notices given pursuant to this Section 2.07 shall be irrevocable and binding upon the
Borrower.

     Section 2.08 Funding Losses. If (a) any payment of principal of any Eurodollar
Advance is made other than on the last day of the Interest Period for such Advance as a result of
any payment pursuant to Section 2.07 or the acceleration of the maturity of the Revolving
Advances pursuant to Article VII or (b) if the Borrower fails to make a principal or
interest payment with respect to any Eurodollar Advance on the date such payment is due and
payable, the Borrower shall, within three Business Days of any written demand sent by any Lender to
the Borrower through the Administrative Agent, pay to Administrative Agent for the account of such
Lender any amounts (without duplication of any other amounts payable in respect of breakage costs)
required to compensate such Lender for any additional losses, out-of-pocket costs or expenses which
it may reasonably incur as a result of such payment or nonpayment, including, without limitation,
any loss, cost or expense actually incurred by reason of the liquidation or reemployment of deposits or other funds acquired by
any Lender to fund or maintain such Advance. A certificate of any Lender setting forth any amount
or amounts that such Lender is entitled to receive pursuant to this Section shall be delivered to
the Borrower and shall be conclusive absent manifest error.

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Section 2.09 Increased Costs.

(a) Increased Costs Generally. If any Change in Law shall:

     (i) impose, modify or deem applicable any reserve, special deposit, compulsory loan,
insurance charge or similar requirement against assets of, deposits with or for the account
of, or credit extended or participated in by, any Lender (except any reserve requirement
reflected in the Eurodollar Rate Reserve Percentage), or the Issuing Bank;

     (ii) subject any Lender or the Issuing Bank to any tax of any kind whatsoever with
respect to this Agreement, any Letter of Credit, any participation in a Letter of Credit or
any Eurodollar Advance made by it, or change the basis of taxation of payments to such
Lender or the Issuing Bank in respect thereof (except for Indemnified Taxes or Other Taxes
covered by Section 2.11 and the imposition of, or any change in the rate of, any
Excluded Tax incurred by such Lender or the Issuing Bank); or

     (iii) impose on any Lender, the Issuing Bank, or the London interbank market any other
condition, cost or expense affecting this Agreement or Eurodollar Advances made by such
Lender, the Issuing Bank, or any Letter of Credit or participation therein;

     and the result of any of the foregoing shall be to increase the cost to such Lender of
making or maintaining any Eurodollar Advance (or of maintaining its obligation to make any
such Advance), or to increase the cost to such Lender or the Issuing Bank of participating
in, issuing or maintaining any Letter of Credit (or of maintaining its obligation to
participate in or to issue any Letter of Credit), or to reduce the amount of any sum
received or receivable by such Lender or the Issuing Bank (whether of principal, interest or
any other amount) then, upon request of such Lender or the Issuing Bank, the Borrower will
pay to such Lender or the Issuing Bank, as the case may be, such additional amount or
amounts as will compensate such Lender or the Issuing Bank, as the case may be, for such
additional costs incurred or reduction suffered.

     (b) Capital Requirements. If any Lender or the Issuing Bank determines that any Change
in Law affecting such Lender or the Issuing Bank or any lending office of such Lender or the
Issuing Bank or such Lender’s or the Issuing Bank’s holding company, if any, regarding capital
requirements has or would have the effect of reducing the rate of return on such Lender’s or the
Issuing Bank’s capital or on the capital of such Lender’s or the Issuing Bank’s holding company, if
any, as a consequence of this Agreement, the Commitments of such Lender or the Revolving Advances
made by, or participations in Letters of Credit held by, such Lender, or the Letters of Credit
issued by the Issuing Bank, to a level below that which such Lender or the Issuing Bank or such
Lender’s or the Issuing Bank’s holding company could have achieved but for such Change in Law
(taking into consideration such Lender’s or the Issuing Bank’s policies
and the policies of such Lender’s or the Issuing Bank’s holding company with respect to
capital adequacy), then from time to time the Borrower will pay to such Lender or the Issuing Bank,
as the case may be, such additional amount or amounts as will compensate such Lender or the Issuing
Bank or such Lender’s or the Issuing Bank’s holding company for any such reduction suffered.

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     (c) Certificates for Reimbursement. A certificate of a Lender or the Issuing Bank
setting forth the amount or amounts necessary to compensate such Lender or the Issuing Bank or any
of their respective holding companies, as the case may be, as specified in paragraph (a) or (b) of
this Section and delivered to the Borrower shall be conclusive absent manifest error. The Borrower
shall pay such Lender or the Issuing Bank, as the case may be, the amount shown as due on any such
certificate within 10 days after receipt thereof.

     (d) Delay in Requests. Failure or delay on the part of any Lender or the Issuing Bank
to demand compensation pursuant to this Section shall not constitute a waiver of such Lender’s or
the Issuing Bank’s right to demand such compensation, provided that the Borrower shall not
be required to compensate a Lender or the Issuing Bank pursuant to this Section for any increased
costs incurred or reductions suffered more than six months prior to the date that such Lender or
the Issuing Bank, as the case may be, notifies the Borrower of the Change in Law giving rise to
such increased costs or reductions and of such Lender’s or the Issuing Bank’s intention to claim
compensation therefor (except that, if the Change in Law giving rise to such increased costs or
reductions is retroactive, then the nine-month period referred to above shall be extended to
include the period of retroactive effect thereof).

     Section 2.10 Payments and Computations.

     (a) Payment Procedures. The Borrower shall make each payment under this Agreement not
later than 2:00 p.m. (New York time) on the day when due to the Administrative Agent at the
Administrative Agent’s Applicable Lending Office in immediately available funds. Each Revolving
Advance shall be repaid and each payment of interest thereon shall be paid in Dollars. All
payments shall be made without setoff, deduction, or counterclaim. The Administrative Agent will
promptly thereafter, and in any event prior to the close of business on the day any timely payment
is made, cause to be distributed like funds relating to the payment of principal, interest or fees
ratably (other than amounts payable solely to the Administrative Agent, or a specific Lender
pursuant to Section 2.03(b), 2.03(c), 2.08, 2.09 or 2.11,
but after taking into account payments effected pursuant to Section 10.04) to the Lenders
in accordance with each Lender’s Pro Rata Share for the account of their respective Applicable
Lending Offices, and like funds relating to the payment of any other amount payable to any Lender
to such Lender for the account of its Applicable Lending Offices, in each case to be applied in
accordance with the terms of this Agreement.

     (b) Computations. All computations of interest based on the Prime Rate shall be made
by the Administrative Agent on the basis of a year of 365 or 366 days, as the case may be, and all
computations of interest based on the Eurodollar Rate and of fees shall be made by the
Administrative Agent, on the basis of a year of 360 days, in each case for the actual number of
days (including the first day, but excluding the last day) occurring in the period for which such
interest or fees are payable. Each determination by the Administrative Agent of an interest
rate shall be conclusive and binding for all purposes, absent manifest error.

     (c) Non-Business Day Payments. Whenever any payment shall be stated to be due on a
day other than a Business Day, such payment shall be made on the next succeeding Business Day, and
such extension of time shall in such case be included in the computation of payment of interest or
fees, as the case may be.

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     (d) Agent Reliance. Unless the Administrative Agent shall have received written
notice from the Borrower prior to the date on which any payment is due to the Lenders that the
Borrower will not make such payment in full, the Administrative Agent may assume that the Borrower
has made such payment in full to the Administrative Agent on such date and the Administrative Agent
may, in reliance upon such assumption, cause to be distributed to each Lender on such date an
amount equal to the amount then due to such Lender. If and to the extent the Borrower shall not
have so made such payment in full to Administrative Agent, each Lender shall repay to the
Administrative Agent forthwith on demand such amount distributed to such Lender, together with
interest thereon, for each day from the date such amount is distributed to such Lender until the
date such Lender repays such amount to the Administrative Agent, at a rate determined by the
Administrative Agent in accordance with banking industry rules on interbank compensation.

     Section 2.11 Taxes.

     (a) Payments Free of Taxes. Any and all payments by or on account of any obligation of
any Loan Party hereunder or under any other Loan Document shall be made free and clear of and
without reduction or withholding for any Indemnified Taxes or Other Taxes, provided that if
any Loan Party shall be required by any Legal Requirement to deduct any Indemnified Taxes
(including any Other Taxes) from such payments, then (i) the sum payable shall be increased as
necessary so that after making all required deductions (including deductions applicable to
additional sums payable under this Section) the Administrative Agent, such Lender or the Issuing
Bank, as the case may be, receives an amount equal to the sum it would have received had no such
deductions been made, (ii) the Borrower shall make such deductions and (iii) the Borrower shall
timely pay the full amount deducted to the relevant Governmental Authority in accordance with Legal
Requirements.

     (b) Payment of Other Taxes by the Borrower. Without limiting the provisions of
paragraph (a) above, the Borrower shall timely pay any Other Taxes to the relevant Governmental
Authority in accordance with applicable law.

     (c) Indemnification by the Borrower. The Borrower shall indemnify the Administrative
Agent, each Lender and the Issuing Bank, within 10 days after demand therefor, for the full amount
of any Indemnified Taxes or Other Taxes (including Indemnified Taxes or Other Taxes imposed or
asserted on or attributable to amounts payable under this Section) paid by the Administrative
Agent, such Lender or the Issuing Bank, as the case may be, and any penalties, interest and
reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified
Taxes or Other Taxes were correctly or legally imposed or asserted by the relevant Governmental
Authority. A certificate as to the amount of such payment or liability
delivered to the Borrower by a Lender or the Issuing Bank (with a copy to the Administrative
Agent), or by the Administrative Agent on its own behalf or on behalf of a Lender or the Issuing
Bank, shall be conclusive absent manifest error.

     (d) Evidence of Payments. As soon as practicable after any payment of Indemnified
Taxes or Other Taxes by the Borrower to a Governmental Authority, the Borrower shall deliver to the
Administrative Agent the original or a certified copy of a receipt issued by such

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Governmental Authority evidencing such payment, a copy of the return reporting such payment or other evidence of
such payment reasonably satisfactory to the Administrative Agent.

     (e) Status of Lenders. Any Foreign Lender that is entitled to an exemption from or
reduction of withholding tax under the law of the jurisdiction in which the Borrower is resident
for tax purposes, or any treaty to which such jurisdiction is a party, with respect to payments
hereunder or under any other Loan Document shall deliver to the Borrower (with a copy to the
Administrative Agent), at the time or times prescribed by applicable law or reasonably requested by
the Borrower or the Administrative Agent, such properly completed and executed documentation
prescribed by applicable law as will permit such payments to be made without withholding or at a
reduced rate of withholding. In addition, any Lender or the Issuing Bank if requested by the
Borrower or the Administrative Agent, shall deliver such other documentation prescribed by
applicable law or reasonably requested by the Borrower or the Administrative Agent as will enable
the Borrower or the Administrative Agent to determine whether or not such Lender or the Issuing
Bank is subject to backup withholding or information reporting requirements.

          Without limiting the generality of the foregoing, in the event that the Borrower is resident
for tax purposes in the United States of America, any Foreign Lender shall deliver to the Borrower
and the Administrative Agent (in such number of copies as shall be requested by the recipient) on
or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from
time to time thereafter upon the request of the Borrower or the Administrative Agent, but only if
such Foreign Lender is legally entitled to do so), whichever of the following is applicable:

     (i) two duly completed copies of Internal Revenue Service Form W-8BEN claiming
eligibility for benefits of an income tax treaty to which the United States of America is a
party,

     (ii) two duly completed copies of Internal Revenue Service Form W-8ECI,

     (iii) in the case of a Foreign Lender claiming the benefits of the exemption for
portfolio interest under section 881(c) of the Code, (x) a certificate to the effect that
such Foreign Lender is not (A) a “bank” within the meaning of section 881(c)(3)(A) of the
Code, (B) a “10 percent shareholder” of the Borrower within the meaning of section
881(c)(3)(B) of the Code, or (C) a “controlled foreign corporation” described in section
881(c)(3)(C) of the Code and (y) two duly completed copies of Internal Revenue Service Form
W-8BEN, or

     (iv) any other form prescribed by applicable law as a basis for claiming exemption from
or a reduction in United States Federal withholding tax duly completed together with such
supplementary documentation as may be prescribed by applicable law to permit the Borrower to
determine the withholding or deduction required to be made.

     (f) Treatment of Certain Refunds. If the Administrative Agent, a Lender or the Issuing
Bank determines, in its sole reasonable discretion, that it has received a refund of any Taxes or
Other Taxes as to which it has been indemnified by the Borrower or with respect to

40

 

which the Borrower have paid additional amounts pursuant to this Section, it shall pay to the Borrower an
amount equal to such refund (but only to the extent of indemnity payments made, or additional
amounts paid, by the Borrower under this Section with respect to the Taxes or Other Taxes giving
rise to such refund), net of all reasonable out-of-pocket expenses of the Administrative Agent,
such Lender or the Issuing Bank, as the case may be, and without interest (other than any interest
paid by the relevant Governmental Authority with respect to such refund), provided that the
Borrower, upon the request of the Administrative Agent, such Lender or the Issuing Bank, agrees to
repay the amount paid over to the Borrower (plus any penalties, interest or other charges imposed
by the relevant Governmental Authority) to the Administrative Agent, such Lender or the Issuing
Bank in the event the Administrative Agent, such Lender or the Issuing Bank is required to repay
such refund to such Governmental Authority. This paragraph shall not be construed to require the
Administrative Agent, any Lender or the Issuing Bank to make available its tax returns (or any
other information relating to its taxes that it deems confidential) to the Borrower or any other
Person.

     Section 2.12 Sharing of Payments, Etc. If any Lender shall, by exercising any right
of setoff or counterclaim or otherwise, obtain payment in respect of any principal of or interest
on any of its Revolving Advances or other obligations hereunder resulting in such Lender’s
receiving payment of a proportion of the aggregate amount of its Revolving Advances and accrued
interest thereon or other such obligations greater than its Pro Rata Share, then the Lender
receiving such greater proportion shall (a) notify the Administrative Agent of such fact, and (b)
purchase (for cash at face value) participations in the Revolving Advances and such other
obligations of the other Lenders, or make such other adjustments as shall be equitable, so that the
benefit of all such payments shall be shared by the Lenders ratably in accordance with the
aggregate amount of principal of and accrued interest on their respective Revolving Advances and
other amounts owing them, provided that: (i) if any such participations are purchased and
all or any portion of the payment giving rise thereto is recovered, such participations shall be
rescinded and the purchase price restored to the extent of such recovery, without interest; and
(ii) the provisions of this paragraph shall not be construed to apply to (x) any payment made by
the Borrower pursuant to and in accordance with the express terms of this Agreement or (y) any
payment obtained by a Lender as consideration for the assignment of or sale of a participation in
any of its Revolving Advances or participations in Letters of Credit to any assignee or
participant, other than to the Borrower or any Subsidiary thereof (as to which the provisions of
this paragraph shall apply). Each Loan Party consents to the foregoing and agrees, to the extent
it may effectively do so under applicable law, that any Lender acquiring a participation pursuant
to the foregoing arrangements may exercise against each Loan Party rights of setoff and
counterclaim with respect to such participation as fully as if such Lender were a direct creditor
of each Loan Party in the amount of such participation.

     Section 2.13 Applicable Lending Offices. Each Lender may book its Revolving Advances
at any Applicable Lending Office selected by such Lender and may change its Applicable Lending
Office from time to time. All terms of this Agreement shall apply to any such Applicable Lending
Office and the Revolving Advances shall be deemed held by each Lender for the benefit of such
Applicable Lending Office. Each Lender may, by written notice to the Administrative Agent and the
Borrower designate replacement or additional Applicable Lending Offices through which Revolving
Advances will be made by it and for whose account repayments are to be made.

41

 

     Section 2.14 Letters of Credit.

     (a) Issuance. Subject to the terms of this Agreement, from time-to-time from the
Closing Date until 15 Business Days before the Maturity Date, at the request of the Borrower, the
Issuing Bank shall, on the terms and conditions hereinafter set forth, issue, increase, or extend
the expiration date of Letters of Credit for the account of the Borrower or for the account of any
Subsidiary of the Borrower (in which case the Borrower and such Subsidiary shall be co-applicants
with respect to such Letter of Credit) on any Business Day. No Letter of Credit will be issued,
increased, or extended:

     (i) if such issuance, increase, or extension would cause the Letter of Credit Exposure
to exceed the lesser of (A) $15,000,000 and (B) the lesser of (1) the aggregate Revolving
Commitments minus the aggregate outstanding principal amount of all Revolving
Advances and (2) the Borrowing Base minus the aggregate outstanding principal amount
of all Revolving Advances;

     (ii) unless such Letter of Credit has an expiration date not later than the earlier of
(A) one year after the date of issuance thereof and (B) the Maturity Date; provided
that, any such Letter of Credit with a one-year tenor may expressly provide that it is
renewable at the option of the Issuing Bank for additional one-year periods (which shall in
no event extend beyond the Maturity Date), provided that such Letter of Credit is
cancelable upon at least 30 days’ notice given by the Issuing Bank to the beneficiary of
such Letter of Credit;

     (iii) unless such Letter of Credit is in form and substance acceptable to the Issuing
Bank in its reasonable discretion;

     (iv) unless the Borrower has delivered to the Issuing Bank a completed and executed
Letter of Credit Application; and

     (v) unless such Letter of Credit is governed by any of (A) the Uniform Customs and
Practice for Documentary Credits (1993 Revision), International Chamber of Commerce
Publication No. 500, (B) the Uniform Customs and Practice for Documentary Credits (2007
Revision), International Chamber of Commerce Publication No. 600 or (C) the International
Standby Practices, International Chamber of Commerce Commission Publication No. 590, or any
successor to such publications. If the terms of any letter of credit application referred
to in the foregoing clause (iv) conflicts with the terms of this Agreement, the terms of
this Agreement shall control.

     (b) Participations. Upon the date of the issuance or increase of a Letter of Credit
occurring on or after the Closing Date, the Issuing Bank shall be deemed to have sold to each other
Lender and each other Lender shall have been deemed to have purchased from the Issuing Bank a
participation in the related Letter of Credit Obligations equal to such Lender’s Pro Rata Share at
such date. In consideration and in furtherance of the foregoing, each Lender hereby absolutely and
unconditionally agrees to pay to the Administrative Agent, for the account of the Issuing Bank,
such Lender’s Pro Rata Share of each payment or disbursement made by an Issuing Bank pursuant to a
Letter of Credit and not reimbursed by the Borrower (or, if

42

 

applicable, another party pursuant to its obligations under any other Loan Document) forthwith on the date due as provided in Section
2.14(c). Each Lender acknowledges and agrees that its obligation to acquire participations
pursuant to this paragraph in respect of Letters of Credit is absolute and unconditional and shall
not be affected by any circumstance whatsoever, including the occurrence and continuance of a
Default or an Event of Default, and that each such payment shall be made without any offset,
abatement, withholding or reduction whatsoever. The Issuing Bank shall, promptly following its
receipt thereof, examine all documents purporting to represent a demand for payment under a Letter
of Credit. The Issuing Bank shall as promptly as possible give telephonic notification, confirmed
by fax, to the Administrative Agent and the Borrower of such demand for payment and whether the
Issuing Bank has made or will make disbursement thereunder; provided that any failure to
give or delay in giving such notice shall not relieve the Borrower of its obligation to reimburse
the Issuing Bank and the Lenders with respect to any such payment or disbursement. The
Administrative Agent shall promptly give each Lender notice thereof.

     (c) Reimbursement. The Borrower hereby agrees to pay on demand to the Issuing Bank in
respect of each Letter of Credit issued for either of their account an amount equal to any amount
paid by the Issuing Bank under or in respect of such Letter of Credit. In the event the Issuing
Bank makes a payment pursuant to a request for draw presented under a Letter of Credit and such
payment is not promptly reimbursed by the Borrower on the same Business Day, the Issuing Bank shall
give notice of such failure to pay to the Administrative Agent and the Lenders, and each Lender
shall promptly reimburse the Issuing Bank for such Lender’s Pro Rata Share of such payment, and
such reimbursement shall be deemed for all purposes of this Agreement to constitute a Borrowing
comprised of Base Rate Advances to the Borrower from such Lender. If such reimbursement is not
made by any Lender to the Issuing Bank on the same day on which the Issuing Bank shall have made
payment on any such draw, such Lender shall pay interest thereon to the Issuing Bank at a rate per
annum equal to a rate determined by the Administrative Agent in accordance with banking industry
rules on interbank compensation. The Borrower hereby unconditionally and irrevocably authorizes,
empowers, and directs the Administrative Agent and the Lenders to record and otherwise treat such
payment under a Letter of Credit not immediately reimbursed by the Borrower as a Borrowing
comprised of Base Rate Advances.

     (d) Obligations Unconditional. The obligations of the Borrower under this Agreement
in respect of each Letter of Credit shall be absolute, unconditional and irrevocable, and shall be
paid strictly in accordance with the terms of this Agreement under all circumstances,
notwithstanding the following circumstances:

     (i) any lack of validity or enforceability of any Letter of Credit Documents, any Loan
Document, or any term or provision therein;

     (ii) any amendment or waiver of or any consent to departure from all or any of the
provisions of any Letter of Credit Document or any Loan Document;

     (iii) the existence of any claim, set-off, defense or other right that the Borrower,
any other party guaranteeing or otherwise obligated with the Borrower, any subsidiary or
other Affiliate thereof or any other Person may have at any time against any

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beneficiary or
transferee of such Letter of Credit (or any Persons for whom any such beneficiary or any
such transferee may be acting), the Issuing Bank, any Lender or any other Person, whether in
connection with this Agreement, any other Loan Document, the transactions contemplated in
this Agreement or in any Letter of Credit Documents or any unrelated transaction;

     (iv) any draft or other document presented under a Letter of Credit proving to be
forged, fraudulent or invalid in any respect or any statement therein being untrue or
inaccurate in any respect;

     (v) payment by the Issuing Bank under such Letter of Credit against presentation of a
draft or other document that complies on its face with the terms of such Letter of Credit
but in fact does not comply with the terms of such Letter of Credit; or

     (vi) any other act or omission to act or delay of any kind of the Issuing Bank, the
Administrative Agent the Lenders or any other Person in the absence of gross negligence or
willful misconduct or any other event, circumstance or happening whatsoever, whether or not
similar to any of the foregoing, that might, but for the provisions of this Section,
constitute a legal or equitable discharge of the Borrower’s obligations hereunder;

provided that nothing in this Agreement shall be construed to excuse the Issuing Bank from
liability to the Borrower to the extent of any direct damages (as opposed to consequential damages,
claims in respect of which are hereby waived by the Borrower to the extent permitted by applicable
law) suffered by the Borrower that are caused by such Issuing Bank’s failure to exercise care when
determining whether drafts and other documents presented under a Letter of Credit comply with the
terms thereof.

     (e) Prepayments of Letters of Credit. In the event that any Letters of Credit shall
be outstanding or shall be drawn and not reimbursed 30 days prior to the Maturity Date, the
Borrower shall pay to the Administrative Agent an amount equal to 105% of the Letter of Credit
Exposure allocable to such Letters of Credit to be held in the LC Cash Collateral Account and
applied in accordance with paragraph (g) below.

     (f) Liability of Issuing Bank. The Borrower assumes all risks of the acts or
omissions of any beneficiary or transferee of any Letter of Credit with respect to its use of such
Letter of Credit. Neither the Issuing Bank nor any of its officers or directors shall be liable or
responsible for:

     (i) the use which may be made of any Letter of Credit or any acts or omissions of any
beneficiary or transferee in connection therewith; or

     (ii) the validity or genuineness of documents, or of any endorsement thereon, even if
such documents should prove to be in any or all respects invalid, insufficient, fraudulent
or forged;

except that the Borrower shall have a claim against the Issuing Bank, and the Issuing Bank
shall be liable to, and shall promptly pay to, the Borrower, to the extent of any direct, as
opposed to

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consequential (claims in respect of which are hereby waived by the Borrower to the
extent permitted by applicable law), damages suffered by the Borrower which the Borrower prove were
caused by the Issuing Bank’s willful misconduct or gross negligence in determining whether
documents presented under a Letter of Credit strictly comply with the terms of such Letter of
Credit. It is understood that the Issuing Bank may accept documents that appear on their face to
be in order, without responsibility for further investigation, regardless of any notice or
information to the contrary and, in making any payment under any Letter of Credit (A) the Issuing
Bank’s exclusive reliance on the documents presented to it under such Letter of Credit as to any
and all matters set forth therein, including reliance on the amount of any draft presented under
such Letter of Credit, whether or not the amount due to the beneficiary thereunder equals the
amount of such draft and whether or not any document presented pursuant to such Letter of Credit
proves to be insufficient in any respect, if such document on its face appears to be in order, and
whether or not any other statement or any other document presented pursuant to such Letter of
Credit proves to be forged or invalid or any statement therein proves to be inaccurate or untrue in
any respect whatsoever and (B) any noncompliance in any immaterial respect of the documents
presented under such Letter of Credit with the terms thereof shall, in each case, be deemed not to
constitute willful misconduct or gross negligence of the Issuing Bank.

     (g) LC Cash Collateral Account.

     (i) If the Borrower is required to deposit funds in the LC Cash Collateral Account
pursuant to Sections 2.07(c), 2.14(e), 7.02(b) or 7.03(b),
then the Borrower and the Administrative Agent shall establish the LC Cash Collateral
Account and the Borrower shall execute any documents and agreements, including the
Administrative Agent’s standard form assignment of deposit accounts, that the Administrative
Agent requests in connection therewith to establish the LC Cash Collateral Account and grant
the Administrative Agent an Acceptable Security Interest in such account and the funds
therein. The Borrower hereby pledges to the Administrative Agent and grants the
Administrative Agent a security interest in the LC Cash Collateral Account, whenever
established, all funds held in the LC Cash Collateral Account from time to time and all
proceeds thereof as security for the payment of the Obligations.

     (ii) Funds held in the LC Cash Collateral Account shall be held as cash collateral for
obligations with respect to Letters of Credit and promptly applied by the Administrative
Agent at the request of the Issuing Bank to any reimbursement or other obligations under
Letters of Credit that exist or occur. To the extent that any surplus funds are held in the
LC Cash Collateral Account above 105% of the Letter of Credit Exposure during the existence
of an Event of Default the Administrative Agent may (A) hold such surplus funds in the LC
Cash Collateral Account as cash collateral for the Obligations or (B) apply such surplus
funds to any Obligations in any manner directed by the Majority Lenders. If no Default or
Event of Default exists, the Administrative Agent shall release to the Borrower at the
Borrower’s written request any funds held in the LC Cash Collateral Account above the
amounts required by Section 2.14(e) or otherwise.

     (iii) Funds held in the LC Cash Collateral Account shall be invested in Cash
Equivalents maintained with, and under the sole dominion and control of, the Administrative
Agent or in another investment if mutually agreed upon by the Borrower

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and the
Administrative Agent, but the Administrative Agent shall have no other
obligation to make any other investment of the funds therein. The Administrative Agent
shall exercise reasonable care in the custody and preservation of any funds held in the LC
Cash Collateral Account and shall be deemed to have exercised such care if such funds are
accorded treatment substantially equivalent to that which the Administrative Agent accords
its own property, it being understood that the Administrative Agent shall not have any
responsibility for taking any necessary steps to preserve rights against any parties with
respect to any such funds.

     (h) Resignation or Removal of the Issuing Bank. The Issuing Bank may resign at any
time by giving written notice to the Administrative Agent, the Lenders and the Borrower, such
resignation to be effective upon the appointment of a successor Issuing Bank, or, if no successor
Issuing Bank has been appointed, 60 days after the retiring Issuing Bank gives notice of its
intention to resign or receives notice of its removal. Upon any such resignation or removal, the
Majority Lenders shall have the right to appoint, and provided that no Default or Event of Default
exists, with the consent of the Borrower (which consent shall not be unreasonably withheld or
delayed), a successor Issuing Bank. If no successor Issuing Bank shall have been so appointed by
the Majority Lenders within such time period, then the Issuing Bank may appoint, and provided that
no Default or Event of Default exists, with the consent of the Borrower (which consent shall not be
unreasonably withheld or delayed), a successor Issuing Bank. Subject to the next succeeding
sentence, upon the acceptance of any appointment as the Issuing Bank hereunder by a Lender that
shall agree to serve as successor Issuing Bank, such successor shall succeed to and become vested
with all the interests, rights and obligations of the retiring Issuing Bank and the retiring
Issuing Bank shall be discharged from its obligations to issue additional Letters of Credit
hereunder. At the time such resignation shall become effective, the Borrower shall pay all accrued
and unpaid fees pursuant to Sections 2.03(c)(ii) and (iii). The acceptance of any
appointment as the Issuing Bank hereunder by a successor Lender shall be evidenced by an agreement
entered into by such successor, in a form satisfactory to the retiring Issuing Bank and the
Administrative Agent, and, from and after the effective date of such agreement, (i) such successor
Lender shall have all the rights and obligations of the previous Issuing Bank under this Agreement
and the other Loan Documents and (ii) references herein and in the other Loan Documents to the term
“Issuing Bank” shall be deemed to refer to such successor or to any previous Issuing Bank, or to
such successor and all previous Issuing Banks, as the context shall require. After the resignation
or removal of the Issuing Bank hereunder, the retiring Issuing Bank shall remain a party hereto and
shall continue to have all the rights and obligations of the Issuing Bank under this Agreement and
the other Loan Documents with respect to Letters of Credit issued by it prior to such resignation,
but shall not be required to issue additional Letters of Credit.

     Section 2.15 Mitigation Obligations; Replacement of Lenders

     (a) Designation of Different Lending Office. If any Lender requests compensation
under Section 2.09, or requires the Borrower to pay any additional amount to any Lender or
any Governmental Authority for the account of any Lender pursuant to Section 2.11, then
such Lender shall use reasonable efforts to designate a different lending office for funding or
booking its Revolving Advances hereunder or to assign its rights and obligations hereunder to
another of
its offices, branches or affiliates, if, in the judgment of such Lender, such designation or

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assignment (a) would eliminate or reduce amounts payable pursuant to Section 2.09 or
2.11, as the case may be, in the future and (b) would not subject such Lender to any
unreimbursed cost or expense and would not otherwise be disadvantageous to such Lender. The
Borrower hereby agrees to pay all reasonable costs and expenses incurred by any Lender in
connection with any such designation or assignment.

     (b) Replacement of Lenders. If the Borrower receives a statement of amounts due
pursuant to Sections 2.09 or 2.11 from a Lender, a Lender defaults in its
obligations to fund a Revolving Advance pursuant to this Agreement, or a Lender (a
“Non-Consenting Lender”) refuses to consent to an amendment, modification or waiver of this
Agreement that, pursuant to Section 10.01, requires consent of each Lender affected thereby
or a Lender becomes an Affected Lender (any such Lender, a “Subject Lender”), so long as
(i) no Event of Default shall have occurred and be continuing and the Borrower has obtained a
commitment from another Lender or an Eligible Assignee to purchase at par the Subject Lender’s
Revolving Advances and assume the Subject Lender’s Revolving Commitments and all other obligations
of the Subject Lender hereunder and (ii) such Lender is not an Issuing Bank with respect to any
Letters of Credit outstanding (unless all such Letters of Credit are terminated or arrangements
acceptable to such Issuing Bank (such as a “back-to-back” letter of credit) are made), the Borrower
may require the Subject Lender to assign all of its Revolving Advances and Revolving Commitments to
such other Lender, Lenders, Eligible Assignee or Eligible Assignees pursuant to the provisions of
Section 10.06; provided that, prior to or concurrently with such replacement, (a) the
Subject Lender shall have received payment in full of all principal, interest, fees and other
amounts (including all amounts under Sections 2.09 and/or 2.11 (if applicable))
through such date of replacement and a release from its obligations under the Loan Documents, (b)
all of the requirements for such assignment contained in Section 10.06, including, without
limitation, the consent of Administrative Agent (if required) and the receipt by Administrative
Agent of an executed Assignment and Acceptance executed by the assignee (Administrative Agent being
hereby authorized to execute any Assignment and Acceptance on behalf of a Subject Lender relating
to the assignment of Revolving Advances and Revolving Commitments of such Subject Lender) and other
supporting documents, have been fulfilled, and (d) in the event such Subject Lender is a
Non-Consenting Lender, each assignee shall consent, at the time of such assignment, to each matter
in respect of which such Subject Lender was a Non-Consenting Lender.

ARTICLE III

CONDITIONS OF LENDING

     Section 3.01 Initial Conditions Precedent. The obligation of each Lender to make its
initial Revolving Advances as part of the initial Borrowing, or the Issuing Bank to issue the
initial Letters of Credit is subject to the following conditions precedent:

     (a) Documentation. On or before the day on which the initial Borrowing is made or the
initial Letter of Credit is issued, the Administrative Agent and the Lenders shall have
received the following, each dated on or before such day, duly executed by all the parties
thereto, each in form and substance satisfactory to the Administrative Agent and the Lenders:

     (i) this Agreement and all attached Exhibits and Schedules;

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     (ii) any Note requested by a Lender pursuant to Section 2.02(g) payable to the
order of such requesting Lender in the amount of its Revolving Commitment;

     (iii) the Security Agreement executed the Borrower and each of its Domestic
Subsidiaries, together with UCC-1 financing statements and any other documents, agreements
or instruments necessary to create an Acceptable Security Interest in the Collateral
described therein;

     (iv) the Pledge Agreement executed by the Borrower and each of its Subsidiaries that
has a Subsidiary pledging to the Administrative Agent for the benefit of the Secured Parties
all of the Equity Interests of the Domestic Subsidiaries and sixty-five percent (65%) of the
Equity Interests of any Foreign Subsidiary directly owned by such Loan Party, together with
certificates, powers executed in blank, UCC-1 financing statements and any other documents,
agreements or instruments necessary to create an Acceptable Security Interest in such Equity
Interests;

     (v) an Account Control Agreement among the Borrower, the Administrative Agent and each
institution at which the Borrower or any of its Subsidiaries maintains a deposit account to
the extent required by Section 5.13(b);

     (vi) a certificate dated as of the Closing Date from a Responsible Officer of the
Borrower stating that (A) all representations and warranties of such Person set forth in
this Agreement and in the other Loan Documents to which it is a party are true and correct
in all material respects; (B) no Default has occurred and is continuing; and (C) the
conditions in this Section 3.01 have been met;

     (vii) copies of the certificate or articles of incorporation or other equivalent
organizational documents, including all amendments thereto, of each Loan Party, certified as
of a recent date by the Secretary of State of the state of its organization;

     (viii) a certificate of the Secretary or Assistant Secretary of each Loan Party dated
the Closing Date and certifying (A) that attached thereto is a true and complete copy of the
organizational documents of such Loan Party as in effect on the Closing Date and at all
times since a date prior to the date of the resolutions described in clause (B) below, (B)
that attached thereto is a true and complete copy of resolutions duly adopted by the Board
of Directors of such Loan Party authorizing the execution, delivery and performance of the
Loan Documents to which such Loan Party is a party and, in the case of the Borrower, the
borrowings hereunder, and that such resolutions have not been modified, rescinded or amended
and are in full force and effect, (C) that the certificate or articles of incorporation or
other organizational documents of such Loan Party have not
been amended since the date of the last amendment thereto shown on the certified copy
thereof furnished pursuant to clause (vii) above, and (D) as to the incumbency and specimen
signature of each officer executing any Loan Document, Notices of Borrowing or any other
document delivered in connection herewith on behalf of such Loan Party;

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     (ix) a certificate of another officer of each Loan Party as to the incumbency and
specimen signature of the Secretary or Assistant Secretary executing the certificate
pursuant to (viii) above;

     (x) certificates from the appropriate Governmental Authority certifying as to the good
standing, existence and authority of each of the Loan Parties in all jurisdictions where
required by the Administrative Agent;

     (xi) a favorable opinion dated as of the Closing Date of (A) David Treadwell, general
counsel to the Loan Parties and (B) Bracewell & Giuliani LLP, New York counsel to the
Administrative Agent;

     (xii) a certificate from a Financial Officer of the Borrower dated as of the Closing
Date addressed to the Administrative Agent and each of the Lenders regarding the matters set
forth in Section 4.20;

     (xiii) a certificate from a Financial Officer addressed to the Administrative Agent and
each of the Lenders, which shall be in form and in substance reasonably satisfactory to the
Administrative Agent, certifying that as of the Closing Date the updated Projections
provided to the Administrative Agent have been prepared on a reasonable basis based upon the
assumptions stated therein and the best information reasonably available to such officer at
the time such Projections were made and shall describe any changes therein and state that
such changes shall not, individually or in the aggregate, reasonably be expected to have a
Material Adverse Effect (it being understood that no assurance can be given that such
Projections will be realized);

     (xiv) a copy of, or a certificate as to coverage under, the insurance policies required
by Section 5.04 and the applicable provisions of the Security Documents, each of
which shall be endorsed or otherwise amended to include a customary lender’s loss payable
endorsement and to name the Administrative Agent as an additional insured;

     (xv) satisfactory Appraisal Report on a fair market value and an Orderly Liquidation
Value basis of the Complete Rigs dated no earlier than September 1, 2008, in form and
substance reasonably satisfactory to the Administrative Agent and issued by a firm
reasonably acceptable to the Administrative Agent, that affirms that after giving effect to
the initial Borrowing on the Closing Date a Borrowing Base Deficiency will not exist; and

     (xvi) acknowledgment from The Corporation Trust Company as of the Closing Date with
respect to its irrevocable appointment by each Loan Party pursuant to Section
10.13(b).

     (b) Payment of Fees. On the Closing Date, the Borrower shall have paid the fees
required to be paid to the Administrative Agent, the Arrangers, and the Lenders on the Closing
Date, including, without limitation, the fees set forth in the Fee Letter and all other costs and
expenses which have been invoiced (which invoice has been delivered to the Borrower at least 24
hours prior to the Closing Date) and are payable pursuant to Section 10.04.

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     (c) Due Diligence; Corporate Structure. The Administrative Agent and the Lenders
shall have completed a satisfactory due diligence review of the assets, liabilities, business,
operations and condition (financial or otherwise) of the Borrower and its Subsidiaries, and all
legal, financial, accounting, governmental, tax and regulatory matters, and fiduciary aspects of
the proposed financing and the terms and conditions of all material obligations of the Loan
Parties. The documentation reflecting the ownership, capital, corporate, tax, organizational and
legal structure of the Loan Parties shall be acceptable to the Administrative Agent.

     (d) Security Documents. The Administrative Agent shall have received all appropriate
evidence required by the Administrative Agent in its reasonable discretion necessary to determine
that arrangements have been made for the Administrative Agent for the benefit of Secured Parties to
have an Acceptable Security Interest in the Collateral, including, without limitation, (i) the
delivery to the Administrative Agent of such financing statements under the Uniform Commercial Code
for filing in such jurisdictions as the Administrative Agent may reasonably require, (ii) lien, tax
and judgment searches conducted on the Loan Parties reflecting no Liens other than Permitted Liens
against any of the Collateral as to which perfection of a Lien is accomplished by the filing of a
financing statement and (iii) lien releases with respect to any Collateral currently subject to a
Lien other than Permitted Liens.

     (e) Financial Statements. The Administrative Agent and the Lenders shall have
received true and correct copies of (i) the Audited Financial Statements, (ii) the Interim
Financial Statements, (iii) the Projections and (iv) such other financial information as the
Administrative Agent may reasonably request.

     (f) Authorizations and Approvals. All Governmental Authorities and Persons shall have
approved or consented to the transactions contemplated hereby, including, without limitation, those
material approvals or consents required in connection with the continued operation of the Borrower
and its Subsidiaries, to the extent required, and such approvals shall be in full force and effect,
and all applicable waiting periods shall have expired without any action being taken or threatened
that would restrain, prevent or otherwise impose adverse conditions on this Agreement and the
actions contemplated hereby and thereby.

     (g) No Proceeding or Litigation; No Injunctive Relief. No action, suit, investigation
or other proceeding (including, without limitation, the enactment or promulgation of a statute or
rule) by or before any arbitrator or any Governmental Authority (other than the Merger
Litigation) shall be threatened or pending and no preliminary or permanent injunction or order
by a state or federal court shall have been entered (i) in connection with this Agreement or any
transaction contemplated hereby or (ii) which, in any case, in the reasonable judgment of the
Administrative Agent, could reasonably be expected to cause a Material Adverse Effect.

     (h) No Default. No Default shall have occurred and be continuing or would result from
such Advance or from the application of the proceeds therefrom.

     (i) Representations and Warranties. The representations and warranties contained in
Article IV hereof and in each other Loan Document shall be true and correct before and after giving
effect to the Revolving Advances and to the application of the proceeds from such Revolving
Advances from the date of the Revolving Advances, as though made on and as of

50

 

such date (it being
understood and agreed that any representation or warranty which by its terms is expressly made as
of an earlier date shall be required to be true and correct only as of such earlier date).

     (j) No Material Adverse Effect. Since December 31, 2007, there has been no material
adverse change in the condition (financial or otherwise), results of operations, assets,
properties, business or prospects of the Borrower and its Subsidiaries, taken as a whole, other
than as set forth in the Confidential Information Memorandum or the Projections dated as of August
2008.

     (k) Additional Information. The Administrative Agent shall have received such
additional information which the Administrative Agent shall have reasonably requested, and such
information shall be reasonably satisfactory in form and substance to the Administrative Agent and
its counsel.

     Section 3.02 Conditions Precedent to Each Advance. The obligation of each Lender to
make a Revolving Advance on the occasion of each Borrowing (including the initial Borrowing) or
Convert to or Continue a Eurodollar Advance and the obligation of the Issuing Bank to issue, extend
or increase Letters of Credit shall be subject to the further conditions precedent that on the
Borrowing Date, the date of Continuation or Conversion, or issuance, extension or increase date of
such Letters of Credit, the following statements shall be true (and each of the giving of the
applicable Notice of Borrowing or Notice of Conversion or Continuation (other than a Notice of
Conversion from a Eurodollar Advance to a Base Rate Advance) and the acceptance by the Borrower of
the proceeds of such Revolving Advance or the request for the issuance, extension or increase of a
Letter of Credit shall constitute a representation and warranty by the Borrower that on the date of
such Revolving Advance, the date of such Conversion or Continuation, or the date of such issuance,
extension or increase such statements are true):

     (a) the representations and warranties contained in Article IV and in each other Loan Document
are correct on and as of the date of such Revolving Advance, Continuation or Conversion, or the
issuance, extension or increase of such Letter of Credit before and after giving effect to such
Revolving Advance and to the application of the proceeds from such Revolving Advance, such
Continuation or Conversion, or to the issuance, extension or increase
of such Letter of Credit, as applicable, as though made on, and as of such date (it being
understood and agreed that any representation or warranty which by its terms is expressly made as
of an earlier date shall be required to be true and correct only as of such earlier date);

     (b) no Default or Event of Default has occurred and is continuing or would result from such
Revolving Advance or from the application of the proceeds therefrom or from such issuance,
extension or increase of such Letter of Credit;

     (c) the Borrowing Base Availability is greater than or equal to zero after giving effect to
such Borrowing or the issuance, increase, or extension of such Letter of Credit; and

     (d) no material adverse change has occurred and is continuing with respect to the Rigs
detailed in the most recently delivered Appraisal Reports pursuant to Section 5.14 or in
the most recent Borrowing Base Report pursuant to Section 5.06(d).

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     Section 3.03 Determinations Under Sections 3.01 and 3.02. For purposes of determining
compliance with the conditions specified in Sections 3.01 and 3.02, each Lender
shall be deemed to have consented to, approved or accepted or to be satisfied with each document or
other matter required thereunder to be consented to or approved by or acceptable or satisfactory to
the Lenders unless an officer of the Administrative Agent responsible for the transactions
contemplated by the Loan Documents shall have received written notice from such Lender prior to the
Borrowings hereunder specifying its objection thereto and such Lender shall not have made available
to the Administrative Agent such Lender’s ratable portion of such Borrowings.

ARTICLE IV

REPRESENTATIONS AND WARRANTIES

     Each Loan Party jointly and severally represents and warrants as follows:

     Section 4.01 Existence. Each of the Company and its Subsidiaries is duly organized,
validly existing, and in good standing under the laws of the jurisdiction of its incorporation or
formation and in good standing and qualified to do business in each jurisdiction where its
ownership or lease of Property or conduct of its business requires such qualification and where a
failure to be qualified would reasonably be expected to have a Material Adverse Effect.

     Section 4.02 Power and Authority. Each of the Loan Parties has the requisite power
and authority and all requisite governmental licenses, authorizations, consents and approvals to
(a) own its assets and carry on its business, and (b) execute, deliver and perform the Loan
Documents to which it is a party and to perform its obligations thereunder. The execution,
delivery, and performance by each Loan Party of this Agreement and the other Loan Documents to
which it is a party and the consummation of the transactions contemplated hereby (a) have been duly
authorized by all necessary organizational action, (b) do not and will not (i) contravene the terms
of any such Person’s organizational documents, (ii) violate any Legal Requirement, or
(iii) conflict with or result in any breach or contravention of, or the creation of any Lien
under (A) the provisions of any indenture, instrument or agreement to which such Loan Party is a
party or is subject, or by which it, or its Property is bound or (B) any order, injunction, writ or
decree of any Governmental Authority or any arbitral award to which such Person or its property is
subject.

     Section 4.03 Authorization and Approvals. No authorization, approval, consent,
exemption, or other action by, or notice to or filing with, any Governmental Authority or any other
Person is necessary or required on the part of any Loan Party in connection with (a) the execution,
delivery and performance by, or enforcement against, any Loan Party of this Agreement and the other
Loan Documents to which it is a party or the transactions contemplated hereby or thereby, (b) the
grant by any Loan Party of the Liens granted by it pursuant to the Loan Documents, or (c) the
perfection or maintenance of the Liens created under the Loan Documents (including the first
priority nature thereof) (other than the filing of UCC-1 Financing Statements), all of which have
been duly obtained, taken, given or made and are in full force and effect, except actions by, and
notices to or filings with, Governmental Authorities (including, without limitation, the SEC) that
may be required in the ordinary course of business from time to

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time or that may be required to
comply with the express requirements of the Loan Documents (including, without limitation, to
release existing Liens on the Collateral or to comply with requirements to perfect, and/or maintain
the perfection of, Liens created for the benefit of the Secured Parties).

     Section 4.04 Enforceable Obligations. This Agreement has been, and each other Loan
Document, when delivered hereunder, will have been, duly executed and delivered by each Loan Party
that is a party thereto. This Agreement constitutes, and each other Loan Document when so
delivered will constitute, a legal, valid and binding obligation of such Loan Party, enforceable
against each Loan Party that is party thereto in accordance with its terms, except as such
enforceability may be limited by any applicable bankruptcy, insolvency, reorganization, fraudulent
conveyance, moratorium, or similar law affecting creditors’ rights generally or general principles
of equity.

     Section 4.05 Financial Statements; No Material Adverse Effect.

     (a) The Audited Financial Statements (i) were prepared in accordance with GAAP consistently
applied throughout the period covered thereby, except as otherwise expressly noted therein; (ii)
fairly present the financial condition of the Borrower and its Subsidiaries as of the date thereof
and their results of operations for the period covered thereby in accordance with GAAP consistently
applied throughout the period covered thereby, except as otherwise expressly noted therein; and
(iii) show all material indebtedness and other liabilities, direct or contingent, of the Borrower
and its Subsidiaries as of the date thereof, including liabilities for taxes, material commitments
and Debt.

     (b) The Interim Financial Statements (i) were prepared in accordance with GAAP consistently
applied throughout the period covered thereby, except as otherwise expressly noted therein, and
(ii) fairly present the financial condition of the Borrower and its Subsidiaries as of
the date thereof and their results of operations for the period covered thereby, subject, in
the case of clauses (i) and (ii), to the absence of footnotes and to normal year-end audit
adjustments.

     (c) The Projections have been prepared in good faith by the Borrower, based on assumptions
believed by the Borrower to be reasonable on the date hereof. Any forward looking statements
contained therein are inherently subject to risk and uncertainties, many of which cannot be
predicted with accuracy, and some of which might not be anticipated. Future events and actual
results, financial and otherwise, could differ materially from those set forth therein or
contemplated by the forward looking statements contained therein.

     (d) Since December 31, 2007, there has been no event or circumstance, either individually or
in the aggregate, that has had or could reasonably be expected to have a Material Adverse Effect.

     Section 4.06 True and Complete Disclosure. Each Loan Party has disclosed to the
Administrative Agent and the Lenders all material agreements, instruments and corporate or other
restrictions to which it or any of its Subsidiaries is subject, and all other matters known to it,
that, individually or in the aggregate, would reasonably be expected to result in a Material
Adverse Effect. None of (a) the Confidential Information Memorandum or (b) any other

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information,
report, financial statement, exhibit or schedule furnished by or on behalf of any Loan Party to the
Administrative Agent or any Lender in connection with the negotiation of any Loan Document or
included therein or delivered pursuant thereto contained, contains or will contain as of the
respective dates any material misstatement of fact or as of the respective dates, omitted, omits or
will omit to state any material fact necessary to make the statements therein, in the light of the
circumstances under which they were, are or will be made, not misleading; provided that,
with respect to projected financial information, the Loan Parties represent only that such
information was prepared in good faith based upon assumptions believed to be reasonable at the
time. Any forward looking statements contained therein are inherently subject to risk and
uncertainties, many of which cannot be predicted with accuracy, and some of which might not be
anticipated. Future events and actual results, financial and otherwise, could differ materially
from those set forth therein or contemplated by the forward looking statements contained therein.

     Section 4.07 Litigation. There are no actions, suits, proceedings, claims or disputes
pending or, to the knowledge of any Responsible Officer of a Loan Party after due and diligent
investigation, threatened or contemplated, at law, in equity, in arbitration or before any
Governmental Authority, by or against any Loan Party or any of their Subsidiaries or against any of
their properties or revenues that (a) purport to affect or pertain to this Agreement, any other
Loan Document or the Collateral, or any of the transactions contemplated thereby, or (b) other than
the Merger Litigation, either individually or in the aggregate, if determined adversely, would
reasonably be expected to have a Material Adverse Effect. To the knowledge of any Responsible
Officer, no regulatory commission is currently conducting and has conducted within the five-year
period immediately preceding the date hereof, an investigation of the Borrower or any of its
Subsidiaries, other than an investigation conducted by such regulatory commission in its routine
general administrative practice.

     Section 4.08 Compliance with Laws. None of the Loan Parties or any of the
Subsidiaries or any of their respective material properties is in violation of, nor will the
continued operation of their material properties as currently conducted violate, any Legal
Requirement (including any Environmental Law) or is in default with respect to any judgment, writ,
injunction, decree or order of any Governmental Authority.

     Section 4.09 No Default. None of the Loan Parties or any of its Subsidiaries is a
party to any agreement or instrument or subject to any corporate restriction that has resulted or
would, either individually or in the aggregate, reasonably be expected to have a Material Adverse
Effect. None of the Borrower or any of its Subsidiaries is in default in any manner under any
provision of any indenture or other agreement or instrument evidencing Debt, or any other material
agreement or instrument to which it is a party or by which it or any of its properties or assets
are or may be bound, where such default could reasonably be expected to result in a Material
Adverse Effect. No Default has occurred and is continuing or would result from the consummation of
the transactions contemplated by this Agreement or any other Loan Document.

     Section 4.10 Subsidiaries; Corporate Structure. Schedule 4.10 sets forth as
of the Closing Date a list of all Subsidiaries of the Borrower and, as to each such Subsidiary, the
jurisdiction of formation and the outstanding Equity Interests therein and the percentage of each
class of such Equity Interests owned by the Borrower and the Subsidiaries. The Equity Interests

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indicated to be owned by the Borrower and the Subsidiaries on Schedule 4.10 are fully paid
and non-assessable and are owned by the persons indicated on such Schedule, free and clear of all
Liens (other than Permitted Liens). As of the Closing Date, none of the Loan Parties owns any
Foreign Subsidiaries other than Bronco Mexico.

     Section 4.11 Liens; Condition of Properties.

     (a) None of the Property of the Borrower or any of the Guarantors is subject to any Lien other
than Permitted Liens. On the date of this Agreement, all governmental actions and all other
filings, recordings, registrations, third party consents and other actions which are necessary to
create and perfect the Liens provided for in the Security Documents will have been made, obtained
and taken in all relevant jurisdictions. None of the Borrower or any of the Guarantors is a party
to any indenture, loan or credit or similar agreement, instrument, or any other material agreement
or arrangement (other than this Agreement and the Security Documents), or subject to any order,
judgment, writ or decree, which either restricts or purports to restrict its ability to grant Liens
to secure the Obligations against their respective assets or Properties.

     (b) Each Loan Party has good record and indefeasible title in fee simple to, or valid
leasehold interests in, all real property necessary or of material importance in the ordinary
conduct of its business, except for such minor defects in title that do not interfere with its
ability to conduct its business as currently conducted or to utilize such properties and assets for
their intended purposes. None of the property of Loan Parties is subject to Liens, other than
Permitted Liens.

     (c) Each Loan Party has complied with all obligations under all material leases to which it is
a party and all such leases are in full force and effect. Each Loan Party enjoys peaceful and
undisturbed possession under all such material leases.

     (d) Neither the business nor the material Properties of any Loan Party has been affected as a
result of any fire, explosion, earthquake, flood, drought, windstorm, accident, strike or other
labor disturbance, embargo, requisition or taking of Property or cancellation of contracts, permits
or concessions by a Governmental Authority, riot, activities of armed forces or acts of God or of
any public enemy, in each case where such act or event has had or would reasonably be expected to
result in a Material Adverse Effect.

     Section 4.12 Environmental Condition.

     (a) The Loan Parties (i) have obtained all material Environmental Permits necessary for the
ownership and operation of their respective material Properties and the conduct of their respective
businesses; (ii) to their knowledge, have been and are in material compliance with all terms and
conditions of such Environmental Permits and with all other material requirements of applicable
Environmental Laws; (iii) have not received notice of any material violation or alleged violation
of any Environmental Law or Environmental Permit; and (iv) are not subject to any material
Environmental Claim.

     (b) None of the present or previously owned or operated Properties of the Loan Parties or of
any of their present or former Subsidiaries, wherever located, (i) has been placed on or, to their
knowledge, proposed to be placed on the National Priorities List or state or local

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analogs, nor has
the Borrower or any of its Subsidiaries been otherwise notified of the designation, listing or
identification of any Property of such Loan Party or any of its present or former Subsidiaries as a
potential site for removal, remediation, cleanup, closure, restoration, reclamation, or other
response activity (“Response”) under any Environmental Laws (except as such activities may
be required by permit conditions or could not reasonably be executed to have a Material Adverse
Effect); (ii) is subject to a Lien, arising under or in connection with any Environmental Laws,
that attaches to any revenues or to any Property owned or operated by the Loan Parties or any of
their present or former Subsidiaries, wherever located; or (iii) to the Loan Parties’ knowledge,
has been the site of any release of Hazardous Material from present or past operations which has
resulted in or could reasonably be expected to result in the need for Response and none of the Loan
Parties or any of their present or former Subsidiaries has generated or transported or has caused
to be generated or transported Hazardous Materials to any third party site which would reasonably
be expected to result in the need for Response, in each case which would reasonably be expected to
have a Material Adverse Effect.

     (c) Without limiting the foregoing, the known present and future liability, if any, of the
Borrower or any of its Subsidiaries, which could reasonably be expected to arise under
Environmental Laws is not reasonably expected to have a Material Adverse Effect.

     Section 4.13 Insurance.

     (a) Schedule 4.13 sets forth a true, complete and correct description of all insurance
maintained by the Loan Parties as of the Closing Date. As of such date, such insurance is in full
force and effect and all premiums have been duly paid.

     (b) The properties of the Loan Parties are (i) insured with financially sound and reputable
insurance companies (A) not Affiliates of any Loan Party and (B) having a A.M. Best policyholders
rating of at least A, (ii) in such amounts as are, when considered in their entirety, prudent and
customary in the businesses in which it is engaged, with such deductibles and covering such risks
as specified on Schedule 4.13 including as are reasonably required by the Majority Lenders.

     (c) The Borrower shall cause all such insurance to name the Administrative Agent, for the
ratable benefit of the Lenders, as “loss payee” under its property loss policies and as “additional
insured” on its comprehensive and general liability policies.

     Section 4.14 Taxes. Each Loan Party has filed all Federal, state and other tax
returns and reports required to be filed, and have paid all Federal, state and other taxes,
assessments, fees and other governmental charges levied or imposed upon them or their properties,
income or assets otherwise due and payable, except those which are being contested in good faith by
appropriate proceedings diligently conducted and for which adequate reserves have been provided in
accordance with GAAP. There is no proposed tax assessment against the Borrower or any Subsidiary
thereof that would, if made, have a Material Adverse Effect.

     Section 4.15 ERISA Compliance.

     (a) Each Plan is in compliance in all material respects with the applicable provisions of
ERISA, the Code and other Federal or state Laws. Each Plan that is intended to qualify under

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Section 401(a) of the Code has received a favorable determination letter from the IRS or an
application for such a letter is currently being processed by the IRS with respect thereto and, to
the best knowledge of the Borrower, nothing has occurred which would prevent, or cause the loss of,
such qualification. The Borrower and each ERISA Affiliate have made all required contributions to
each Plan subject to Section 412 of the Code, and no application for a funding waiver or an
extension of any amortization period pursuant to Section 412 of the Code has been made with respect
to any Plan.

     (b) (i) No ERISA Event has occurred or is reasonably expected to occur that, when taken
together with all other such ERISA Events, could reasonably be expected to result in material
liability of the Borrower or any of its ERISA Affiliates; (ii) no Pension Plan has any Unfunded
Pension Liability; (iii) neither the Borrower nor any ERISA Affiliate has incurred, or reasonably
expects to incur, any liability under Title IV of ERISA with respect to any Pension Plan (other
than premiums due and not delinquent under Section 4007 of ERISA); (iv) neither the Borrower nor
any ERISA Affiliate has incurred, or reasonably expects to incur, any liability (and no event has
occurred which, with the giving of notice under Section 4219 of ERISA, would result in such
liability) under Sections 4201 or 4243 of ERISA with respect to a
Multiemployer Plan; and (v) neither the Borrower nor any ERISA Affiliate has engaged in a
transaction that could be subject to Sections 4069 or 4212(c) of ERISA.

     Section 4.16 Security Interests.

     (a) The Pledge Agreement is effective to create in favor of the Administrative Agent, for the
ratable benefit of the Secured Parties, a legal, valid and enforceable security interest in the
Collateral (as defined in such Pledge Agreement) and, when such Collateral (to the extent such
Collateral constitutes an instrument under the applicable Uniform Commercial Code) is delivered to
such Administrative Agent, such Pledge Agreement shall constitute a fully perfected first priority
Lien on, and security interest in, all right, title and interest of the pledgors thereunder in such
Collateral, in each case prior and superior in right to any other person.

     (b) The Security Agreement is effective to create in favor of the Administrative Agent, for
the ratable benefit of the Secured Parties, a legal, valid and enforceable security interest in the
Collateral (as defined in such Security Agreement) and, when financing statements in appropriate
form are filed in the offices specified on Schedule I to the Security Agreement, such Security
Agreement shall constitute a fully perfected Lien on, and security interest in, all right, title
and interest of the grantors thereunder in such portion of the Collateral in which a security
interest may be perfected by the filing of a financing statement under the applicable Uniform
Commercial Code, in each case prior and superior in right to any other person, other than Permitted
Liens.

     Section 4.17 Bank Accounts. Schedule 4.17 sets forth the account numbers and
locations of all bank accounts of the Loan Parties as of the Closing Date.

     Section 4.18 Labor Relations. There (a) is no unfair labor practice complaint pending
against the Borrower or any of its Subsidiaries or, to the knowledge of any Responsible Officer of
a Loan Party, threatened against any of them, before the National Labor Relations Board (or any
successor United States federal agency that administers the National Labor Relations Act),

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and no
grievance or arbitration proceeding arising out of or under any collective bargaining agreement is
so pending against the Borrower or any of its Subsidiaries or, to the knowledge of any Responsible
Officer of a Loan Party, threatened against any of them, (b) are no strikes, lockouts, slowdowns or
stoppage against the Borrower or any Subsidiary pending or, to the knowledge of any Loan Party,
threatened and (c) no union representation petition existing with respect to the employees of the
Borrower or any of its Subsidiaries and no union organizing activities are taking place, in each
case that has had or would reasonably be expected to result in a Material Adverse Effect. The
hours worked by and payments made to employees of the Borrower and the Subsidiaries have not been
in violation of the Fair Labor Standards Act or any other applicable federal, state, provincial,
local or foreign law dealing with such matters, except where such violation, either individually or
in the aggregate, would not reasonably be expected to have a Material Adverse Effect. All payments
due from the Borrower or any Subsidiary, or for which any claim may be made against the Borrower or
any Subsidiary, on account of wages and employee health and welfare insurance and other benefits,
have been paid or accrued as a liability on the books of the Borrower or such Subsidiary, except
where the failure to do the
same, either individually or in the aggregate, would not reasonably be expected to result in a
Material Adverse Effect. The consummation of the transactions contemplated hereby will not give
rise to any right of termination or right of renegotiation on the part of any union under any
collective bargaining agreement to which the Borrower or any Subsidiary is bound.

     Section 4.19 Intellectual Property. Each Loan Party owns or is licensed or otherwise
has full legal right to use all of the patents, trademarks, service marks, trade names, copyrights,
franchises, authorizations and other rights that are reasonably necessary for the operation of its
business, without conflict with the rights of any other Person with respect thereto.

     Section 4.20 Solvency. Immediately following the making of each Revolving Advance and
after giving effect to the application of the proceeds of each Revolving Advance, (a) the amount of
the “present fair saleable value” of the assets of each Loan Party and its Subsidiaries, taken as a
whole, will, as of the date of such Revolving Advance, exceed the amount that will be required to
pay all “liabilities of such Loan Party and its Subsidiaries, taken as a whole, contingent or
otherwise”, as of such date (as such quoted terms are determined in accordance with applicable
federal and state laws governing determinations of the insolvency of debtors) as such debts become
absolute and matured, (b) each such Loan Party and its Subsidiaries, taken as a whole, will not
have, as of such date, an unreasonably small amount of capital with which to conduct their
businesses, taking into account the particular capital requirements of such Person and its
projected capital requirements and availability and (c) each such Loan Party and its Subsidiaries,
taken as a whole, will be able to pay its debts as they mature, taking into account the timing of
and amounts of cash to be received by such Loan Party and its Subsidiaries, taken as a whole, and
the timing of and amounts of cash to be payable on or in respect of indebtedness of such Loan Party
and its Subsidiaries, taken as a whole. For purposes of this Section 4.20, (i) “debt” means
liability on a “claim”, and (ii) “claim” means any (x) right to payment, whether or not such a
right is reduced to judgment, liquidated, unliquidated, fixed, contingent, matured, unmatured,
disputed, undisputed, legal or equitable, secured or unsecured or (y) right to an equitable remedy
for breach of performance if such breach gives rise to a right to payment, whether or not such
right to an equitable remedy is reduced to judgment, fixed, contingent, matured or unmatured,
disputed, undisputed, secured or unsecured.

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     Section 4.21 Senior Indebtedness. The obligations of the Loan Parties hereunder
constitute senior indebtedness (however denominated) in respect of any Subordinated Debt of the
Borrower and its Subsidiaries.

     Section 4.22 Margin Regulations. None of the Loan Parties is engaged and will engage,
principally or as one of its important activities, in the business of purchasing or carrying margin
stock (within the meaning of Regulation U), or extending credit for the purpose of purchasing or
carrying margin stock. No part of the proceeds of any Advance will be used, whether directly or
indirectly, and whether immediately, incidentally or ultimately, to purchase or carry any margin
stock (within the meaning of Regulation U) or to refinance any Debt originally incurred for such
purpose, or for any other purpose that entails a violation of, or that is inconsistent with, the
provisions of the Regulations of the Board, including Regulation T, U or X.

     Section 4.23 Investment Company Act . None of the Borrower, any Person Controlling
the Borrower, or any Subsidiary is or is required to be registered as an “investment company” under
the Investment Company Act of 1940.

     Section 4.24 Names and Locations. As of the Closing Date, Schedule 4.24 sets
forth (a) all legal names and all other names (including trade names, fictitious names and business
names) under which the Loan Parties currently conduct business, or has at any time during the past
five years conducted business, (b) the state or other jurisdiction of organization or incorporation
for each Loan Party and sets forth each Loan Party’s organizational identification number or
specifically designates that one does not exist, and (c) the location of the chief executive
offices of the Loan Parties.

ARTICLE V

AFFIRMATIVE COVENANTS

     So long as the Revolving Advances or any amount under any Loan Document shall remain unpaid,
any Lender shall have any Revolving Commitment hereunder, or there shall exist any Letter of Credit
Exposure, unless the Majority Lenders shall otherwise consent in writing, each Loan Party shall:

     Section 5.01 Preservation of Existence, Etc. Except as permitted by Section
6.03, (a) preserve, renew and maintain in full force and effect its legal existence and good
standing under the Legal Requirements of the jurisdiction of its formation, (b) take best efforts
to obtain, preserve, renew, extend, maintain and keep in full force and effect all rights,
privileges, permits, licenses, authorizations and franchises necessary in the normal conduct of its
business, and (c) qualify and remain qualified as a foreign entity in each jurisdiction in which
qualification is necessary in view of its business and operations or the ownership of its
Properties, except where the failure to be so qualified or the failure to be in good standing,
individually or in the aggregate, would not reasonably be expected to result in a Material Adverse
Effect.

     Section 5.02 Compliance with Laws, Etc. Comply in all material respects with all
Legal Requirements (excluding all Environmental Laws and ERISA which are addressed

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elsewhere in
this Article V) applicable to it or to its business or property, except in such instances in which
such Legal Requirement is being contested in good faith by appropriate proceedings diligently
conducted.

     Section 5.03 Maintenance of Property. (a) Maintain and preserve all Property material
to the conduct of its business and use its commercially reasonable efforts to keep such Property in
good repair, working order and condition, ordinary wear and tear excepted, (b) from time to time
make, or cause to be made, all needful and proper repairs, renewals, additions, improvements and
replacements thereto necessary in order that the business carried on in connection therewith may be
properly conducted at all times and (c) use the standard of care typical in the industry in the
operation and maintenance of its facilities.

     Section 5.04 Maintenance of Insurance.

     (a) Maintain with financially sound and reputable insurance companies not Affiliates of any
Loan Party, insurance with respect to its Properties and business, to the extent and against loss
or damage of the kinds customarily insured against by Persons engaged in the same or similar
business, of such types and in such amounts as are customarily carried under similar circumstances
by such other Persons and such other insurance as may be required by law.

     (b) (i) Cause all such policies covering any Collateral to be endorsed or otherwise amended to
include a customary lender’s loss payable endorsement, in form and substance satisfactory to the
Administrative Agent, which endorsement shall provide that, from and after the Closing Date, if the
insurance carrier shall have received written notice from the Administrative Agent of the
occurrence of an Event of Default, the insurance carrier shall pay all proceeds otherwise payable
to a Loan Party under such policies directly to the Administrative Agent; (ii) deliver original or
certified copies of all such policies to the Administrative Agent; cause each such policy to
provide that it shall not be canceled, modified or not renewed upon not less than 30 days’ prior
written notice thereof by the insurer to the Administrative Agent; and (iii) deliver to the
Administrative Agent, prior to the cancellation, modification or nonrenewal of any such policy of
insurance, a copy of a renewal or replacement policy (or other evidence of renewal of a policy
previously delivered to the Administrative Agent) together with evidence satisfactory to the
Administrative Agent of payment of the premium therefor.

     Section 5.05 Payment of Taxes, Etc. Pay and discharge as the same shall become due
and payable, all its obligations and liabilities in accordance with their terms, including (a) all
taxes, assessments and governmental charges or levies imposed upon it or upon its income or profits
or in respect of its Property, unless the same are being contested in good faith by appropriate
proceedings diligently conducted and adequate reserves in accordance with GAAP are being maintained
by the applicable Loan Party, (b) all lawful claims which, if unpaid, might by law become a Lien
upon its Property; and (c) all Debt, as and when due and payable, unless (i) any subordination
provisions contained in any instrument or agreement evidencing such Debt provide otherwise, (ii)
such Debt is trade payables payable in the ordinary course which are not more than 90 days overdue,
and (iii) the same are being contested in good faith by appropriate proceedings diligently
conducted and adequate reserves in accordance with GAAP are being maintained by the applicable Loan
Party.

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     Section 5.06 Reporting Requirements. Deliver to the Administrative Agent and each
Lender, in form and detail satisfactory to the Administrative Agent and the Lenders:

     (a) Audited Annual Financials. As soon as available and in any event not later than
90 days after the end of each fiscal year of the Borrower, copies of the audited consolidated
balance sheets of the Borrower and its Subsidiaries as at the end of such fiscal year, together
with the related audited consolidated statements of income or operations, shareholders’ equity and
cash flows for such fiscal year, and the notes thereto, all in reasonable detail and setting forth
in each case in comparative form the audited consolidated figures as of the end of and for the
previous fiscal year, all in reasonable detail and prepared in accordance with GAAP (subject
where required only to normal year-end audit adjustments and the absence of footnotes with
respect to any consolidating statements) and accompanied by a report and opinion of an independent
certified public accountant of nationally recognized standing reasonably acceptable to the Lenders,
which report and opinion shall be prepared in accordance with generally accepted auditing standards
and shall not be subject to any “going concern” or like qualification or exception or any
qualification or exception as to the scope of such audit and shall state that such consolidated
financial statements present fairly, in all material respects, the consolidated financial position
of the Borrower and its respective Subsidiaries as at the end of such fiscal year and their
consolidated results of operations and cash flows for such fiscal year in conformity with GAAP; or
words substantially similar to the foregoing and that the examination by such accountants in
connection with such consolidated financial statements has been made in accordance with generally
accepted auditing standards;

     (b) Quarterly Financials. As soon as available and in any event not later than 45
days after the end of each of the first three fiscal quarters in each fiscal year, (i) a
consolidated balance sheet of the Borrower and its Subsidiaries as at the end of such fiscal
quarter, and the related consolidated statements of income or operations, and cash flows for such
fiscal quarter and for the portion of the Borrower’s fiscal year then ended, and setting forth in
comparative form the consolidated figures for the corresponding fiscal quarter of the previous
fiscal year and the corresponding portion of the previous fiscal year, all in reasonable detail and
certified by a Financial Officer of the Borrower as fairly presenting the financial condition,
results of operations, shareholders’ equity and cash flows of the Borrower and its Subsidiaries in
accordance with GAAP, subject only to normal year-end audit adjustments and the absence of
footnotes;

     (c) Compliance Certificates. Concurrently with the delivery of the financial
statements referred to in Sections 5.06(a) and (b), a duly completed Compliance
Certificate signed by a Financial Officer of the Borrower;

     (d) Borrowing Base Report. As soon as available and in any event not later than 10
days after the receipt of the most recently delivered Appraisal Reports pursuant to Section
5.14, a Borrowing Base Report as of the last Business Day of the preceding calendar month, or
as of such more recent date if the Borrower chooses to make an interim Borrowing Base Report;

     (e) Management Letters. Promptly upon receipt thereof, copies of any detailed audit
reports, final management letters and any final reports as to material inadequacies in accounting
controls (including reports as to the absence of any such inadequacies) or recommendations

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submitted to the board of directors (or the audit committee of the board of directors) of the
Borrower by independent accountants in connection with the accounts or books of the Borrower or any
Subsidiary thereof, or any audit of any of them;

     (f) Securities Law Filings and other Public Information. Promptly after the same are
available, copies of each annual report, proxy or financial statement or other report or
communication sent to the stockholders of the Borrower, and copies of all annual, regular, periodic
and special reports and registration statements which the Borrower may file or be
required to file with the SEC under Section 13 or 15(d) of the Securities Exchange Act of 1934
or any other securities Governmental Authority, and not otherwise required to be delivered to the
Administrative Agent pursuant hereto;

     (g) USA Patriot Act. Promptly, following a request by any Lender, all documentation
and other information that such Lender reasonably requests in order to comply with its ongoing
obligations under applicable “know your customer” and anti-money laundering rules and regulations,
including the USA Patriot Act; and

     (h) Other Information. Such other information respecting the business, Properties or
Collateral, or the condition or operations, financial or otherwise, of the Borrower and its
Subsidiaries as the Administrative Agent or any Lender through the Administrative Agent may from
time to time reasonably request.

Documents required to be delivered pursuant to Section 5.06(a), (b), (g) or
(h) (to the extent any such documents are included in materials otherwise filed with the
SEC) may be delivered electronically and if so delivered, shall be deemed to have been delivered on
the date (i) on which the Borrower posts such documents, or provides a link thereto on the
Borrower’s website on the Internet at the website address listed on Schedule 10.02; or (ii)
on which such documents are posted on the Borrower’s behalf on IntraLinks/IntraAgency or another
relevant website (including, without limitation, the SEC’s website), if any, to which each Lender
and the Administrative Agent have access (whether a commercial, third-party website or whether
sponsored by the Administrative Agent); provided that: (i) the Borrower shall deliver paper copies
of such documents to the Administrative Agent or any Lender that requests the Borrower to deliver
such paper copies and (ii) the Borrower shall notify (which may be by facsimile or electronic mail)
the Administrative Agent of the posting of any such documents and provide to the Administrative
Agent by electronic mail electronic versions (i.e., soft copies) of such documents. The
Administrative Agent shall not have an obligation to request the delivery or to maintain copies of
the documents referred to above, and in any event shall have no responsibility to monitor
compliance by the Borrower with any such request for delivery, and each Lender shall be solely
responsible for requesting delivery to it or maintaining its copies of such documents.

     Section 5.07 Other Notices. Deliver to the Administrative Agent and each Lender
prompt written notice of the following:

     (a) Defaults. As soon as possible and in any event within five days of a Responsible
Officer obtaining knowledge thereof, the occurrence of any Default or Event of Default or any other
Debt with an outstanding principal balance in excess of $1,000,000.00 of any Loan Party being
declared due and payable before its expressed maturity, or any holder of such Debt having

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the right
to declare such Debt due and payable before its expressed maturity, because of the occurrence of
any default (or any event which, with notice and/or the lapse of time, shall constitute any
default) under such Debt;

     (b) Litigation. The filing or commencement of, or any threat or notice of intention
of any person to file or commence, any action, suit or proceeding, whether at law or in equity or
by
or before any Governmental Authority, against the Borrower, any Subsidiary or any Affiliate
thereof, or any material development in any such action, suit, proceeding, that, in either case,
would reasonably be expected to result in a Material Adverse Effect; and

     (c) ERISA Events. The occurrence of any ERISA Event that, alone or together with any
other ERISA Events that have occurred, could reasonably be expected to result in liability of the
Loan Parties in an aggregate amount exceeding $1,000,000.00;

     (d) Environmental Notices. A copy of any form of notice, summons, material
correspondence or citation received from any Governmental Authority or any other Person, concerning
(i) material violations or alleged violations of Environmental Laws, which seeks or threatens to
impose liability therefor, (ii) any material action or omission on the part of the Borrower or any
of its Subsidiaries in connection with liability for Hazardous Material, (iii) any notice of
potential material responsibility or liability under any Environmental Law, or (iv) concerning the
filing of a Lien other than a Permitted Lien upon, against or in connection with the Borrower or
any of its Subsidiaries, or any of their leased or owned material Property, wherever located;

     (e) Collateral. Furnish to the Administrative Agent:

     (i) written notice of:

     (A) any change of its legal name, corporate structure, jurisdiction of
organization or formation or its organizational identification number or the
creation or acquisition of any Person that will become a Subsidiary of the Borrower,
within 5 Business Days before the occurrence thereof;

     (B) an Asset Disposition within 5 Business Days before the occurrence thereof;

     (C) an Event of Loss with respect to any portion of Collateral that the
Borrower reasonably believes to have a market value in excess of $2,500,000.00
promptly and in any event within five Business Days after the occurrence thereof;

     (D) an account in excess of $2,000,000.00 or accounts in excess of
$5,000,000.00 in the aggregate becoming subject to any dispute or claim or other
circumstances known to any Loan Party that may impair the validity or collectibility
of such accounts promptly and in any event within five Business Days after the
occurrence thereof;

     (E) notice of nonrenewal or cancellation received by any Loan Party from any
insurer with respect to any insurance maintained in accordance with

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Section 5.04 promptly and in any event within five Business Days after the receipt
thereof;

     (F) the Borrower or any of its Subsidiaries holding or obtaining any (1)
Chattel Paper, (2) Instrument, or (3) Letter of Credit, each in excess of
$1,000,000.00 individually promptly and in any event within two Business Days after
the receipt thereof;

     (G) Collateral with value in excess of $5,000,000.00 at any time being in the
possession or control of any warehouse or bailee not previously disclosed promptly
and in any event within 10 Business Days before the occurrence thereof;

     (H) Collateral with value in excess of $1,000,000.00 being of a type where a
Lien may be registered, recorded or filed under, or notice thereof given under, any
federal statute or regulation or any material Collateral constitutes a claim against
the United States of America, or any State or municipal government or any
department, instrumentality or agency thereof, the assignment of which claim is
restricted by law promptly and in any event within five Business Days of the
existence thereof; and

     (I) as soon as available and in any event not later than 30 days after the end
of each fiscal month, Rig Utilization for such fiscal month;

     (ii) from time to time upon request (provided, however, that if an Event of Default has
not occurred or is no longer continuing, no more than two times during any fiscal year),
statements and schedules further identifying, updating, and describing the Collateral and
such other information, reports and evidence concerning the Collateral, as Administrative
Agent may reasonably request, all in reasonable detail;

     (f) Casualties and Takings. Any actual or constructive loss by reason of fire,
explosion, theft or other casualty, of any Property of any Loan Party or any taking of title to, or
the use of, any Property of any Loan Party pursuant to eminent domain or condemnation proceedings
or any settlement or compromise thereof, in each case, with a value equal to or greater than
$1,000,000.00, and a certificate of a Responsible Officer of the Borrower describing the nature and
status of such occurrence; and

     (g) Material Changes. Any development that has resulted in, or would reasonably be
expected to result in, a Material Adverse Effect.

Each notice pursuant to this Section shall be accompanied by a statement of a Responsible Officer
of the Borrower setting forth details of the occurrence referred to therein and stating what action
the Borrower have taken and propose to take with respect thereto. Each notice pursuant to
Section 5.07(a) shall describe with particularity any and all provisions of this Agreement
and any other Loan Document that have been breached.

     Section 5.08 Books and Records; Inspection. (a) Keep proper records and books of
account in which full, true and correct entries will be made in accordance with GAAP and all Legal
Requirements, reflecting all financial transactions and matters involving the assets and

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business
of the Loan Parties and their Subsidiaries; (b) maintain such books of record and account in
material conformity with all applicable requirements of any Governmental Authority having
regulatory jurisdiction over the Loan Parties and their Subsidiaries, as the case may be; and (c)
from time-to-time during regular business hours upon reasonable prior notice, permit
representatives and independent contractors of the Administrative Agent and each Lender to
(provided that the Loan Parties shall be responsible for such expenses not more than one (1) time
per year unless an Event of Default has occurred and is continuing, in which case the Loan Parties
shall be responsible for all such expenses), or any Lender (at such Lender’s expense unless an
Event of Default shall have occurred and be continuing, in which case the Loan Parties shall be
responsible for all such expenses), to (i) visit and inspect any of its Properties, (ii) to examine
its corporate, financial and operating records, and make copies thereof or abstracts therefrom and
(iii) to discuss its affairs, finances and accounts with its directors, officers, and independent
public accountants, all at the expense of the Borrower and at such reasonable times during normal
business hours and as often as may be reasonably desired, upon reasonable advance notice to the
applicable Loan Party or Subsidiary.

     Section 5.09 Agreement to Pledge.

     (a) The Borrower shall, and shall cause each Wholly-Owned Subsidiary that is a Domestic
Subsidiary to, grant to the Administrative Agent an Acceptable Security Interest in any Property
(other than real property and the Borrower’s Investment in Challenger) of the Borrower or any
Subsidiary now owned or hereafter acquired.

     (b) The Borrower shall, and shall cause each Domestic Subsidiary to, pledge the stock or other
equity interests of each of its Subsidiaries to the Administrative Agent, for the benefit of the
Secured Parties, together with favorable opinions of counsel (which shall cover, among other
things, the legality, validity, binding effect and enforceability of the documentation referred to
herein), all in form, content and scope reasonably satisfactory to the Administrative Agent,
provided, however, that notwithstanding anything herein to the contrary, no Loan Party shall be
obligated to pledge more than sixty-five percent (65%) of the Equity Interests of any Foreign
Subsidiary directly owned by such Loan Party.

     Section 5.10 Use of Proceeds. Use the proceeds of the Revolving Advances and Letters
of Credit for general corporate purposes, including working capital support, issuance of Letters of
Credit, Rig refurbishment and Acquisitions.

     Section 5.11 Nature of Business. Maintain and operate such business in substantially
the manner in which it is conducted and operated as of the Closing Date.

     Section 5.12 Additional Guarantors. Promptly after any Person becomes a Wholly-Owned
Subsidiary that is a Domestic Subsidiary of the Borrower (and in any event within 30 days), (a)
cause such Person to (i) become a Guarantor by executing and delivering to the Administrative Agent
a counterpart of this Agreement or such other document as the Administrative Agent shall deem
appropriate for such purpose, (ii) deliver to the Administrative Agent documents of the types
referred to in clauses Section 3.01(a)(vii), (viii), (ix) and (x) and favorable
opinions of counsel to such Person (which shall cover, among other things, the legality, validity,
binding effect and enforceability of the documentation referred to in clause (i)),

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all in form,
content and scope reasonably satisfactory to the Administrative Agent and (iii) execute such other
Security Documents as the Administrative Agent or any Lender may reasonably request, in each case
to secure the Obligations and (b) cause the stockholder of such Person to execute a Pledge
Agreement pledging 100% of its interests in the Equity Interest of such Person to secure the
Obligations and such evidence of corporate authority to enter into and such legal opinions in
relation to such Pledge Agreement as the Administrative Agent may reasonably request, along with
share certificates pledged thereby and appropriately executed stock powers in blank;
provided that, no new Subsidiary that is a controlled foreign corporation under Section 957
of the Code shall be required to become a Guarantor or enter into any Security Documents if such
guaranty or the entering into of such Security Documents would reasonably be expected to result in
any material incremental income tax liability and the Borrower or any Subsidiary domiciled in the
U.S. that is an equity holder of a controlled foreign corporation under Section 957 of the Code
shall only be required to pledge 65% of the Equity Interest of such controlled foreign corporation
pursuant to the applicable Pledge Agreement.

     Section 5.13 Additional Collateral Requirements.

     (a) Accounts. At the Borrower’s own expense, use its commercially reasonable efforts
to assure prompt payment of all amounts due or to become due under accounts subject to reasonable
write-offs in the Borrower’s ordinary course of business;

     (b) Deposit Accounts.

     (i) The Loan Parties will not, and will not permit any Subsidiary to, directly or
indirectly, establish or maintain any deposit accounts with an account balance greater than
$1,000,000.00 individually or $2,500,000.00 in the aggregate, without prior written notice
to the Administrative Agent and unless the Administrative Agent, such Loan Party or such
Subsidiary and the bank at which the account is to be opened shall have entered into Account
Control Agreements.

     (ii) Upon the occurrence and during the continuance of an Event of Default and at the
direction of the Administrative Agent or the Majority Lenders, establish lockboxes and
blocked accounts (collectively, “Blocked Accounts”) in the name of the Borrower or
any of its Subsidiaries with such banks (“Collecting Banks”) as are reasonably
acceptable to the Administrative Agent (subject to irrevocable instructions acceptable to
Administrative Agent as hereinafter set forth) or with the Administrative Agent and all
invoices evidencing accounts shall bear a notice that such invoices are
payable to such Blocked Accounts and in which the Borrower or one of its Subsidiaries,
as applicable, will immediately deposit all payments made for inventory or other payments
constituting proceeds of Collateral, in the case of the Borrower and their Subsidiaries, in
the identical form in which such payment was made, whether by cash or check. The Collecting
Banks shall acknowledge and agree, pursuant to an Account Control Agreement, that all
payments made to the Blocked Accounts are for the benefit of the Administrative Agent and
the Secured Parties, and that the Collecting Banks have no right to setoff against the
Blocked Accounts, other than for customary charges of the Collecting Bank for depositary
services. The Borrower and each Subsidiary shall irrevocably instruct each Collecting Bank
to promptly transfer all payments or deposits

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(with certain exceptions as agreed to by the
Administrative Agent) into the Blocked Accounts into the Administrative Agent’s Account on
each Business Day. If any Loan Party shall receive any monies, checks, notes, drafts or any
other payments relating to and/or proceeds of accounts or other Collateral, such Person
shall hold such instrument or funds in trust for the Administrative Agent, and, immediately
upon receipt thereof, shall remit the same or cause the same to be remitted, in kind, to the
Blocked Accounts or to the Administrative Agent at its address set forth in Section
10.02 below.

     Section 5.14 Appraisal Reports.

     (a) Before each anniversary date of the Closing Date, the Borrower shall deliver to the
Administrative Agent and the Lenders an Appraisal Report and certify the Borrowing Base. The cost
of each such Appraisal Report shall be paid by the Borrower.

     (b) Within 30 days of reporting to the Administrative Agent that Rig Utilization is less than
70% for any three consecutive months, the Borrower shall deliver to the Administrative Agent and
the Lenders an Appraisal Report (for the avoidance of doubt, only one Appraisal Report will be
delivered when Rig Utilization falls below the threshold described in the preceding sentence and
only one Appraisal Report will be required to be delivered in each twelve-month period between each
anniversary date of the Closing Date). The cost of each such Appraisal Report shall be paid by the
Borrower.

     (c) At any time the Administrative Agent or the Majority Lenders may request that the Borrower
deliver an additional Appraisal Report to the Lenders. Upon receipt of such request by the
Borrower, the Borrower shall initiate such reports within 10 days of receipt of such request and
the Borrower shall deliver such Appraisal Report to the Administrative Agent and the Lenders within
60 days after receipt of such request. Unless an Event of Default is in existence at the time of
such request, the Lenders shall pay the costs of such additional Appraisal Report.

     (d) Upon the acquisition of any Rig or refurbishment of Rigs owned by the Borrower or any of
its Subsidiaries, the Borrower shall deliver to the Administrative Agent and the Lenders an
additional Appraisal Report setting forth the Orderly Liquidation Value of such Rig dated no more
than two months prior to any requested increase in the Borrowing Base as a result of such
acquisition.

     (e) Each Appraisal Report delivered under this Section 5.14 shall be in form, scope
and substance reasonably satisfactory to the Administrative Agent.

     Section 5.15 Further Assurances in General. Execute any and all further documents,
financing statements, agreements and instruments, and take all such further actions (including the
filing and recording of financing or continuation statements or amendments thereto (or similar
documents required by any laws of any applicable jurisdiction)), which may be required under any
Legal Requirement, or which the Administrative Agent or the Majority Lenders may reasonably
request, all at the expense of the Borrower. The Borrower also agrees to provide to the
Administrative Agent, from time to time upon request, evidence reasonably satisfactory to the
Administrative Agent as to the perfection and priority of the Liens created or intended to be

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created by the Security Documents. The Borrower agrees not to effect or permit any change referred
to in Section 5.07(e)(i)(A) unless all filings have been made under the Uniform Commercial
Code or otherwise that are required in order for the Administrative Agent to continue at all times
following such change to have, and each Loan Party agrees to take all necessary action to ensure
that the Administrative Agent does continue at all times to have, a valid, legal and perfected
security interest in all the Collateral.

ARTICLE VI

NEGATIVE COVENANTS

     So long as the Revolving Advances or any amount under any Loan Document shall remain unpaid,
any Lender shall have any Revolving Commitment, or there shall exist any Letter of Credit Exposure,
unless the Majority Lenders otherwise consent in writing, no Loan Party shall:

     Section 6.01 Liens, Etc. Create, assume, incur or suffer to exist, any Lien on or in
respect of any of its Property whether now owned or hereafter acquired, other than the following
(“Permitted Liens”):

     (a) Liens pursuant to any Loan Document;

     (b) Excepted Liens;

     (c) Liens existing on the Closing Date and described in Schedule 6.01; provided that
such Liens shall secure only those obligations which they secure on the date hereof and extensions,
renewals and replacements thereof permitted hereunder;

     (d) Liens securing Debt permitted under Section 6.02(e)(i) and purchase money security
interests securing Debt permitted under Section 6.02(e)(ii) in any fixed or capital assets
and improvements thereto or equipment hereafter acquired (or, in the case of improvements,
constructed) by the Borrower or any of its Subsidiaries; provided that (i) such Liens do
not at any time encumber any property other than the property financed by such Debt and the
Proceeds thereof, (ii) the Debt secured thereby does not exceed the lesser of the cost or fair
market value
of the property being acquired or financed on the date of acquisition or financing, and (iii)
in the case of purchase money security interests, such security interests are created within 90
days after such acquisition (or completion of such improvements);

     (e) Cash deposited in order to secure the Cash-Secured Letters of Credit; and

     (f) other Liens securing obligations, actual or contingent, in an aggregate amount not greater
than $100,000.00 at any time.

     Section 6.02 Debts, Guaranties and Other Obligations. Create, assume, suffer to exist
or in any manner become or be liable, in respect of any Debt except:

     (a) Debt under the Loan Documents;

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     (b) Debt existing on the Closing Date and described in Schedule 6.02 and any
refinancings, extensions, renewals or replacements of such Debt to the extent the principal amount
of such Debt is not increased, neither the final maturity nor the weighted average life to maturity
of such Debt is decreased, such Debt, if subordinated to the obligations of a Loan Party hereunder,
remains so subordinated on terms no less favorable to the Lenders and no more restrictive on the
Loan Parties than the Subordinated Debt being refinanced, and in an amount not less than the amount
outstanding at the time of refinancing;

     (c) Debt of the Borrower to Guarantors, of Guarantors to the Borrower and to other Guarantors
and of Subsidiaries to the Borrower or other Subsidiaries; provided that (i) such Debt of
any Loan Party is subordinated to the Obligations pursuant to a subordination agreement in form and
substance reasonably acceptable to the Administrative Agent; and (ii) any such loans and advances
made by a Loan Party shall be evidenced by a promissory note pledged to the Administrative Agent
for the ratable benefit of the Secured Parties;

     (d) Guarantees of the Borrower or any Wholly-Owned Subsidiary in respect of Debt or other
obligations otherwise permitted hereunder of the Borrower or any Wholly-Owned Subsidiary;

     (e) (i) Debt incurred to finance the acquisition, construction or improvement of any fixed or
capital assets and (ii) Debt in respect of Capital Leases and extensions, renewals and replacements
of any such Debt that do not increase the outstanding principal amount thereof; provided that (A)
in the case of Debt to finance the acquisition, construction or improvements of fixed or capital
assets, such Debt is incurred prior to or within 90 days after such acquisition or the completion
of such construction or improvement and (B) the aggregate principal amount of Debt permitted by
this paragraph shall not exceed $10,000,000.00 at any time outstanding;

     (f) obligations (contingent or otherwise) of the Borrower or any Wholly-Owned Subsidiary
existing or arising under any Swap Contract, provided that such obligations are (or were)
entered into by such Person in the ordinary course of business for the purpose of directly
mitigating risks associated with liabilities, commitments, investments, assets, or property held or
reasonably anticipated by such Person, or changes in the value of securities issued by such Person,
and not for purposes of speculation or taking a “market view”;

     (g) unsecured Debt (other than Subordinated Debt) in an aggregate principal amount not to
exceed $5,000,000.00 at any time outstanding;

     (h) unsecured Subordinated Debt provided that such Subordinated Debt is in compliance with
Section 6.14;

     (i) Debt of a Person existing at the time such Person became a Subsidiary of the Borrower or
Debt that is assumed pursuant to an acquisition of assets constituting an Acquisition by the
acquirer of such assets, but only if such Debt was not created or incurred in contemplation of such
Person becoming a Subsidiary or such Acquisition and the aggregate outstanding amount of all Debt
existing pursuant to this clause does not exceed $5,000,000.00 at any time, and any refinancing of
such Debt is on terms no less favorable to the Lenders and no more restrictive to the Loan Parties
than the terms of the Debt being refinanced;

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     (j) Debt representing deferred compensation to employees of Borrower or any of its
Subsidiaries incurred in the ordinary course of business;

     (k) Debt consisting of obligations under deferred compensation or other similar arrangements
incurred by such Person in connection with the Acquisitions;

     (l) Debt consisting of cash management obligations and other Debt in respect of netting
services, overdraft protections and similar arrangements, in each case (x) in connection with cash
management and deposit accounts and (y) incurred in the ordinary course of business;

     (m) Debt consisting of the financing of insurance premiums incurred in the ordinary course of
business;

     (n) Debt consisting of reimbursement obligations of the Borrower in connection with the
Cash-Secured Letters of Credit;

     (o) other Debt of the Borrower and its Subsidiaries in an aggregate principal amount at any
time outstanding not to exceed $100,000.00 and contingent liabilities of Borrower and the other
Loan Parties in respect of such Debt; and

     (p) all premiums (if any), interest (including post-petition interest), fees, expenses,
charges and additional or contingent interest on obligations described in clauses (a) through (n)
above.

     Section 6.03 Merger or Consolidation. Merge, dissolve, liquidate, consolidate with or
into another Person, or Dispose of (whether in one transaction or in a series of transactions) all
or substantially all of its assets (whether now owned or hereafter acquired) to or in favor of any
Person, except that, so long as no Default or Event of Default exists or would result therefrom:

     (a) (i) any Subsidiary may merge with the Borrower, provided that the Borrower shall
be the continuing or surviving Person, (ii) any Guarantor may merge with another Person (other than
the Borrower), provided that the Guarantor shall be the continuing or surviving Person or
such continuing or surviving Person if not the Guarantor, shall become a Guarantor in
accordance with Section 5.12; and

     (b) any Subsidiary may Dispose of all or substantially all of its assets (upon voluntary
liquidation or otherwise) to the Borrower or to another Subsidiary; provided that if the
transferor in such a transaction is a Guarantor, then the transferee must either be the Borrower or
a Guarantor.

     Section 6.04 Asset Sales. Make any Asset Disposition or enter into any agreement to
make any Asset Disposition, except:

     (a) Asset Dispositions of equipment or real property to the extent that (i) Asset Disposition
is in the ordinary course of business and (ii) (x) such property is exchanged for credit against
the purchase price of similar replacement property or (y) the proceeds of such Disposition are
reasonably promptly applied to the purchase price of such replacement property;

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     (b) Asset Dispositions of property by the Borrower or any Subsidiary to the Borrower or to a
Subsidiary in the ordinary course of business; provided that if the transferor of such
property is the Borrower or a Guarantor, the transferee thereof must either be the Borrower or a
Guarantor;

     (c) Asset Dispositions by the Borrower and its Subsidiaries to any Person that is not a Loan
Party or a Subsidiary of any Loan Party not otherwise permitted under this Section 6.04;
provided that (i) at the time of such Disposition, no Default or Event of Default shall
exist or would result from such Disposition and (ii) the aggregate book value of all property
Disposed of in reliance on this clause (c) in any fiscal year shall not exceed $2,500,000.00 (or
the equivalent in any other currency);

     (d) Asset Dispositions permitted by Section 6.03, Investments permitted by Section
6.05 and Restricted Payments permitted by Section 6.06;

     (e) leases, subleases, licenses or sublicenses of property in the ordinary course of business
and which do not materially interfere with the value of such property;

     (f) transfers of property subject to any condemnation or eminent domain (or deed in lieu
thereof) upon receipt of the Net Proceeds of such event and applied in accordance with Section
2.07(c)(iii);

     (g) Asset Dispositions in the ordinary course of business consisting of the abandonment of
intellectual property rights which, in the reasonable good faith determination of the Borrower, are
not material to the conduct of the business of the Borrower and its Subsidiaries;

     (h) Asset Dispositions of Investments in joint ventures to the extent required by, or made
pursuant to, buy/sell arrangements between the joint venture parties set forth in joint venture
arrangements and similar binding arrangements;

     (i) Asset Dispositions of overdue accounts receivable arising in the ordinary course of
business, but only in connection with the collection or compromise thereof;

     (j) Asset Dispositions of Cash Equivalent Investments and cash in the ordinary course of
business;

     (k) voluntary terminations of Swap Contracts; and

     (l) any transfer by the Borrower or any of its Subsidiaries to its customers of drill pipe and
associated drilling equipment utilized in connection with a drilling contract for the employment of
a drilling rig in the ordinary course of business.

     Section 6.05 Investments and Acquisitions. Make any Investments or Acquisitions
except:

     (a) Investments held by any Loan Party in the form of Cash Equivalents;

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     (b) Existing Investments in Subsidiaries and other Investments in existence on the Closing
Date and described in Schedule 6.05;

     (c) advances to officers, directors and employees of the Borrower and Wholly-Owned
Subsidiaries in an aggregate amount not to exceed $300,000.00 at any one time outstanding, for
travel, entertainment, relocation and analogous ordinary business purposes;

     (d) Investments of a Loan Party in another Loan Party;

     (e) Investments of a Loan Party in any Foreign Subsidiary in an aggregate principal amount not
to exceed $2,500,000.00 at any one time outstanding;

     (f) Investments consisting of extensions of credit in the nature of accounts receivable or
notes receivable arising from the grant of trade credit in the ordinary course of business, and
Investments received in satisfaction or partial satisfaction thereof from financially troubled
account debtors to the extent reasonably necessary in order to prevent or limit loss;

     (g) Guarantees permitted by Section 6.02;

     (h) Investments in newly-formed Domestic Subsidiaries that become Guarantors pursuant to
Section 5.10;

     (i) Investments under Swap Contracts permitted under Section 6.02(g);

     (j) Acquisitions so long as:

     (i) both before and after giving effect to such acquisition, no Default or Event of
Default exists or will exist or would result therefrom;

     (ii) as soon as available, but not less than five Business Days prior to such
acquisition, the Borrower has provided to the Lenders a copy of the information provided to
the board of directors of the Borrower or other Loan Party making such acquisition;

     (iii) if such acquisition is an acquisition of the Equity Interests of a Person, the
acquisition is structured so that the acquired Person shall become a Subsidiary of the
Borrower and comply with the provisions of Section 5.12; provided,
however, that such acquisition is not hostile, and if such acquisition is an
acquisition of assets, the acquisition is structured so that the Borrower or one of its
Subsidiaries shall acquire such assets;

     (iv) no Loan Party shall, as a result of or in connection with any such acquisition,
assume or incur any direct or contingent liabilities (whether relating to environmental,
tax, litigation, or other matters) that would reasonably be expected, as of the date of such
acquisition, to result in the existence or occurrence of a Material Adverse Effect;

     (v) with respect to any Acquisition whereby the total consideration paid in connection
with such acquisition (including any Debt of the acquired entity that is

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assumed by a Loan
Party following such acquisition) exceeds $25,000,000.00, the Borrower shall certify (and
provide the Administrative Agent with a pro forma calculation in form and substance
reasonably satisfactory to the Administrative Agent) to the Administrative Agent and the
Lenders that, after giving effect to completion of such acquisition, Liquidity is not less
than $15,000,000.00 on a pro forma basis which includes all consideration given in
connection with such acquisition, other than Capital Stock of the Borrower delivered to the
seller(s) in such acquisition, as having been paid in cash at the time of making such
acquisition; and

     (vi) such acquisition is of assets to be used in the Borrower’s and their Subsidiaries’
business or is of Equity Interests of a Person engaged in business substantially the same as
that of the Borrower, in each case compared to the business of the Borrower as conducted on
the date of this Agreement;

     (k) Investments received in connection with the bankruptcy or reorganization of customers and
suppliers, in each case in the ordinary course of business;

     (l) Investments consisting of (i) any deferred portion of the sales price or (ii) non-cash
consideration, in each case, received by the Borrower or any Subsidiary in connection with any
Asset Disposition permitted under Section 6.04;

     (m) Restricted Payments permitted pursuant to Section 6.06;

     (n) Investments in the ordinary course of business consisting of (i) endorsements for
collection or deposit or (ii) customary trade arrangements with customers;

     (o) advances of payroll payments in the ordinary course of business;

     (p) investments consisting of prepaid expenses and lease, utility, workers’ compensation,
performance and other similar deposits made in the ordinary course of business;

     (q) accounts receivable arising in the ordinary course of business;

     (r) other Investments not exceeding $10,000,000.00 in the aggregate in any fiscal year of the
Borrower;

     (s) Investments in Challenger consisting of (i) the existing 25% ownership interest and (ii)
the contribution of Rigs with an Orderly Liquidation Value not exceeding $15,000,000 in the
aggregate since the date of this Agreement; and

     (t) Investments in Bronco Mexico consisting of the contribution of Rigs 55, 76 and 78.

     Section 6.06 Restricted Payments. Declare or make, directly or indirectly, any
Restricted Payment, or incur any obligation (contingent or otherwise) to do so, except that:

     (a) each Subsidiary of the Borrower may make Restricted Payments to the Borrower or any of its
other Wholly-Owned Subsidiaries; and

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     (b) the Borrower may purchase, redeem or otherwise acquire shares of its common stock or other
common equity interests or warrants or options to acquire any such shares with the proceeds
received from the substantially concurrent issue of new shares of its common stock or other common
equity interests.

The provisions of this Section 6.06 shall not prohibit:

     (i) Any purchase or redemption of Subordinated Debt of any Loan Party made by exchange
for, or out of the proceeds of the substantially concurrent sale of, common stock or other
common equity interests of the Loan Party, other than common stock or other common equity
interests issued or sold to a Subsidiary or an employee stock ownership plan) to the extent
permitted by Section 2.07(c);  and

     (ii) Any purchase or redemption of Subordinated Debt of a Loan Party made by exchange
for, or out of the proceeds of the substantially concurrent sale of, Indebtedness of the
Borrower or a Loan Party which is permitted to be issued pursuant to the provision of
Section 6.02.

     Section 6.07 Change in Nature of Business. Engage in any line of business
substantially different from those lines of business conducted by the Borrower and its Subsidiaries
on the date hereof or any business substantially related or incidental thereto.

     Section 6.08 Transactions With Affiliates. Enter into any transaction of any kind with
any Affiliate of the Borrower, whether or not in the ordinary course of business, including,
without limitation, any payment by the Borrower or any of its Wholly-Owned Subsidiaries of any
management, consulting or similar fees to any Affiliate, whether pursuant to a management agreement
or otherwise, other than on fair and reasonable terms substantially as favorable or more favorable,
when taken as a whole, to the Borrower or such Subsidiary as would be obtainable by the Borrower or
such Subsidiary at the time in a comparable arm’s length transaction with a Person
other than an Affiliate, other than (a) transactions between Loan Parties, (b) otherwise
permitted by this Agreement, and (c) pursuant to arrangements existing on the date hereof and set
forth on Schedule 6.08, and (d) the Management Services Agreement between Bronco MENA
Management LLC and Challenger and the Master Services Agreement between Bronco MENA Services LLC
and Challenger.

     Section 6.09 Agreements Restricting Liens and Distributions. Create or otherwise
cause or suffer to exist any prohibition, encumbrance or restriction which prohibits or otherwise
(a) restricts the ability (i) of any Subsidiary to make Restricted Payments to any Loan Party or to
otherwise transfer property to any Loan Party, (ii) of any Subsidiary to Guarantee the Debt of any
Loan Party, or (iii) of the Borrower or any Subsidiary to create, incur, assume or suffer to exist
Liens on property of such Person; provided, however, that this clause (iii) shall
not prohibit any negative pledge incurred or provided in favor of any holder of Debt permitted
under Section 6.02(e) solely to the extent any such negative pledge relates to the Property
financed by or the subject of such Debt; or (b) requires the grant of a Lien to secure an
obligation of such Person if a Lien is granted to secure another obligation of such Person.

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     Section 6.10 Limitation on Accounting Changes or Changes in Fiscal Periods. Permit
(a) any change in any of its accounting policies affecting the presentation of financial statements
or reporting practices, except as required or permitted by GAAP or (b) the fiscal year of the
Borrower or any of its Subsidiaries to end on a day other than December 31 or change the Borrower’s
method of determining fiscal quarters.

     Section 6.11 Limitation on Speculative Hedging. (a) Purchase, assume, or hold a
speculative position in any commodities market or futures market or enter into any Swap Contract
for speculative purposes, (b) be party to or otherwise enter into any Swap Contract which (i) is
entered into for reasons other than as a part of its normal business operations as a risk
management strategy and/or hedge against changes resulting from market conditions related to the
Borrower’ or their Subsidiaries’ operations, (ii) is longer than the Maturity Date, or (iii)
obligates any Loan Party to any margin call requirements not permitted under this Agreement, or (c)
change its Risk Management Policy without the Administrative Agent’s prior written consent.

     Section 6.12 Operating Leases. Enter into or remain liable upon any Operating Lease,
except for Operating Leases which have Operating Lease Obligations of not more than $5,000,000.00
at any one time outstanding.

     Section 6.13 Sale and Leaseback Transactions and other Off-Balance Sheet Liabilities.
Enter into or suffer to exist any (a) Sale and Leaseback Transaction or (b) any other transaction
pursuant to which it incurs or has incurred Off-Balance Sheet Liabilities, except for Swap
Contracts permitted to be incurred under the terms of Section 6.02.

     Section 6.14 Subordinated Debt. (a) Make any optional, mandatory or scheduled
payments (each whether by redemption,
purchase, retirement, defeasance, set-off or otherwise in respect of Subordinated Debt) on
account of (i) principal unless the aggregate principal amount of such Subordinated Debt is being
repaid in full with Net Equity Issuance Proceeds or is permitted by Section 6.06 or (ii)
interest in excess of an aggregate amount of $10,000,000.00 during any fiscal year; or (b) permit
any waiver, supplement, modification, amendment, termination or release of any indenture,
instrument or agreement pursuant to which any Subordinated Debt is outstanding if such waiver,
supplement, modification, amendment, termination or release would (i) increase the maximum
principal amount of such Subordinated Debt or the ordinary interest rate or the default interest
rate on such Subordinated Debt; (ii) change the dates upon which payments of principal or interest
are due on such Subordinated Debt; (iii) change any event of default or add any covenant with
respect to such Subordinated Debt; (iv) change the payment, redemption or prepayment provisions of
such Subordinated Debt; (v) change the subordination provisions thereof; or (vi) change or amend
any other term, if in each case such change or amendment would materially increase the obligations
of the obligor or confer additional material rights on the holder of such Subordinated Debt in a
manner adverse to any Loan Party or any Secured Party.

     Section 6.15 [Reserved].

     Section 6.16 Minimum Fixed Charge Coverage Ratio. Permit the Fixed Charge Coverage
Ratio for the four consecutive Fiscal Quarters ending as of March 31, 2009 and

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thereafter to be
less than (a) for the four consecutive Fiscal Quarters ending as of March 31, 2009, 1.05 to 1.00,
(b) for the four consecutive Fiscal Quarters ending as of June 30, 2009, 1.10 to 1.00, and (c) for
the four consecutive Fiscal Quarters ending as of September 30, 2009 and each fiscal quarter ending
thereafter, 1.15 to 1.00.

     Section 6.17 Maximum Total Leverage Ratio. Permit the Total Leverage Ratio for the
four consecutive Fiscal Quarters ending hereafter to be more than 2.00 to 1.00.

ARTICLE VII

EVENTS OF DEFAULT

     Section 7.01 Events of Default. The occurrence of any of the following events shall
constitute an “Event of Default” under any Loan Document:

     (a) Payment. The Borrower shall fail to pay (i) any principal of any Advance or
reimburse any drawing under any Letter of Credit when the same becomes due and payable, (ii) any
interest on the Revolving Advances, any fees, reimbursements, indemnifications, or other amounts
payable in connection with the Obligations, this Agreement or under any other Loan Document within
three Business Days after the same becomes due and payable or (iii) any mandatory prepayment
required by Section 2.07 within five Business Days after the same becomes due and payable;

     (b) Representation and Warranties. Any representation or statement made or deemed to
be made by the Borrower or any other Loan Party (or any of their respective officers) in this
Agreement, in any other Loan Document, or in connection with this Agreement or any other Loan
Document shall prove to have been incorrect in any material respect when made or deemed to be made;

     (c) Covenant Breaches. Any Loan Party shall (i) fail to perform or observe any
covenant contained in Sections 5.01(a), 5.07(a) (only with respect to a Default or an
Event of Default hereunder), 5.07(e)(i)(I), 5.11, 5.12,
5.14(a), (b) and (c) and Article VI of this Agreement or (ii) fail
to perform or observe any other term or covenant set forth in this Agreement or in any other Loan
Document which is not covered by clause (i) above or any other provision of this Section
7.01 if such failure shall remain unremedied for 30 days;

     (d) Cross-Default. (i) Any Loan Party shall fail to pay any principal of or premium
or interest on any of its Debt which, individually or in the aggregate, is outstanding in a
principal amount of at least $2,000,000.00 (or the equivalent in any other currency) individually
or when aggregated with all such Debt of the Person so in default (but excluding Debt evidenced by
the Revolving Advances) when the same becomes due and payable (whether by scheduled maturity,
required prepayment, acceleration, demand or otherwise), or (ii) any other event shall occur or
condition shall exist under any agreement or instrument relating to Debt which is outstanding in a
principal amount of at least $2,000,000.00 (or the equivalent in any other currency) individually
or when aggregated with all such Debt of the Person so in default (but excluding Debt evidenced by
the Revolving Advances), if the effect of such event or condition is to accelerate, or to permit
the acceleration of, the maturity of such Debt;

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     (e) Insolvency. Any Loan Party shall generally not pay its debts as such debts become
due, or shall admit in writing its inability to pay its debts generally, or shall make a general
assignment for the benefit of creditors; or any proceeding shall be instituted by or against the
Borrower or any of its Subsidiaries seeking to adjudicate it as a bankrupt or insolvent, or seeking
liquidation, winding up, reorganization, arrangement, adjustment, protection, relief, or
composition of it or its debts under any law relating to bankruptcy, insolvency or reorganization
or relief of debtors, or seeking the entry of an order for relief or the appointment of a receiver,
trustee or other similar official for it or for any substantial part of its property and, in the
case of any such proceeding instituted against such Person, either such proceeding shall remain
undismissed for a period of 60 days or any of the actions sought in such proceeding shall occur; or
such Person shall take any action to authorize any of the actions set forth above in this paragraph
(e) or any analogous procedure or step is taken in any jurisdiction.

     (f) Judgments. Any judgment, decree or order for the payment of money shall be
rendered against any Loan Party in an amount in excess of $3,000,000.00 (or the equivalent in any
other currency) and either (i) enforcement proceedings shall have been commenced by any creditor
upon such judgment or order or (ii) there shall be any period of 45 consecutive days during which a
stay of enforcement of such judgment or order, by reason of a pending appeal or otherwise, shall
not be in effect; provided, however, that any such judgment, order, award or settlement shall not
give rise to an Event of Default under this subsection (f) if and for so long as (A) the amount of
such judgment, order, award or settlement is covered by a valid and binding policy of insurance
between the defendant and a creditworthy insurer (as determined by the
Administrative Agent in its reasonable business judgment) covering full payment thereof and
(B) such insurer has been notified, and has acknowledged its responsibility for the claim made for
payment, of the amount of such judgment, order, award or settlement;

     (g) ERISA. (i) An ERISA Event occurs with respect to a Pension Plan or Multiemployer
Plan which has resulted or could reasonably be expected to result in liability of a Loan Party
under Title IV of ERISA to the Pension Plan, Multiemployer Plan or the PBGC in an aggregate amount
in excess of $2,000,000.00, or (ii) the Borrower or any ERISA Affiliate fails to pay when due,
after the expiration of any applicable grace period, any installment payment with respect to its
withdrawal liability under Section 4201 of ERISA under a Multiemployer Plan in an aggregate amount
in excess of $2,000,000.00; or

     (h) Loan Documents. Any Loan Document, at any time after its execution and delivery
and for any reason other than as expressly permitted hereunder or satisfaction in full of all the
Obligations, ceases to be in full force and effect; or any Loan Party contests in any manner the
validity or enforceability of any Loan Document; or any Loan Party denies that it has any or
further liability or obligation under any Loan Document, or purports to revoke, terminate or
rescind any Loan Document; or

     (i) Security Documents. The Administrative Agent and the Lenders shall fail to have
an Acceptable Security Interest in any Rig or material portion of the other Collateral; or

     (j) Change in Control. A Change of Control shall occur.

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     Section 7.02 Optional Acceleration of Maturity. If any Event of Default (other than
an Event of Default pursuant to paragraph (e) of Section 7.01) shall have occurred
and be continuing, then, and in any such event:

     (a) the Administrative Agent (i) shall at the request, or may, with the consent of the
Majority Lenders, by notice to the Borrower, declare the Commitments and the obligation of each
Lender and the Issuing Bank to make extensions of credit hereunder, including making Revolving
Advances and issuing Letters of Credit, to be terminated, whereupon the same shall forthwith
terminate, and (ii) shall at the request, or may, with the consent of the Majority Lenders, by
notice to the Borrower, declare all principal, interest, fees, reimbursements, indemnifications,
and all other amounts payable under this Agreement and the other Loan Documents to be forthwith due
and payable, whereupon all such amounts shall become and be forthwith due and payable in full,
without notice of intent to demand, demand, presentment for payment, notice of nonpayment, protest,
notice of protest, grace, notice of dishonor, notice of intent to accelerate, notice of
acceleration, and all other notices, all of which are hereby expressly waived by the Borrower;

     (b) the Borrower shall, on demand of the Administrative Agent at the request or with the
consent of the Majority Lenders, deposit with the Administrative Agent into the LC Cash Collateral
Account an amount of cash in Dollars equal to 105% of the outstanding Letter of Credit Exposure as
security for the Obligations to the extent the Letter of Credit Obligations are not otherwise paid
at such time; and

     (c) the Administrative Agent shall at the request of, or may with the consent of, the Majority
Lenders proceed to enforce its rights and remedies under the Security Documents,
this Agreement,
and any other Loan Document for the ratable benefit of the Lenders by appropriate proceedings.

     Section 7.03 Automatic Acceleration of Maturity. If any Event of Default pursuant to
paragraph (e) of Section 7.01 shall occur:

     (a) (i) the Commitments and the obligation of each Lender and the Issuing Bank to make
extensions of credit hereunder, including making Revolving Advances and issuing Letters of Credit,
shall terminate, and (ii) all principal, interest, fees, reimbursements, indemnifications, and all
other amounts payable under this Agreement and the other Loan Documents shall become and be
forthwith due and payable in full, without notice of intent to demand, demand, presentment for
payment, notice of nonpayment, protest, notice of protest, grace, notice of dishonor, notice of
intent to accelerate, notice of acceleration, and all other notices, all of which are hereby
expressly waived by the Borrower;

     (b) the Borrower shall deposit with the Administrative Agent into the LC Cash Collateral
Account an amount of cash in Dollars equal to 105% of the outstanding Letter of Credit Exposure as
security for the Obligations to the extent the Letter of Credit Obligations are not otherwise paid
at such time; and

     (c) the Administrative Agent shall at the request of, or may with the consent of, the Majority
Lenders proceed to enforce its rights and remedies under the Security Documents, this

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Agreement,
and any other Loan Document for the ratable benefit of the Lenders by appropriate proceedings.

     Section 7.04 Non-exclusivity of Remedies. No remedy conferred upon the Administrative
Agent, the Issuing Bank and the Lenders is intended to be exclusive of any other remedy, and each
remedy shall be cumulative of all other remedies existing by contract, at law, in equity, by
statute or otherwise.

     Section 7.05 Right of Set-off. If an Event of Default shall have occurred and be
continuing, each Lender, the Issuing Bank, and each of their respective Affiliates is hereby
authorized at any time and from time to time, to the fullest extent permitted by applicable law, to
set off and apply any and all deposits (general or special, time or demand, provisional or final,
in whatever currency) at any time held and other obligations (in whatever currency) at any time
owing by such Lender, the Issuing Bank or any such Affiliate to or for the credit or the account of
any Loan Party against any and all of the obligations of such Loan Party now or hereafter existing
under this Agreement or any other Loan Document to such Lender or the Issuing Bank, irrespective of
whether or not such Lender or the Issuing Bank shall have made any demand under this Agreement or
any other Loan Document and although such obligations of such Loan Party may be contingent or
unmatured or are owed to a branch or office of such Lender or the Issuing Bank different from the
branch or office holding such deposit or obligated on such indebtedness. The rights of each
Lender, the Issuing Bank and their respective Affiliates under this Section are in addition to
other rights and
remedies (including other rights of setoff) that such Lender, the Issuing Bank or their
respective Affiliates may have. Each Lender and the Issuing Bank agrees to notify the Borrower and
the Administrative Agent promptly after any such setoff and application, provided that the failure
to give such notice shall not affect the validity of such setoff and application.

     Section 7.06 Application of Proceeds. From and during the continuance of any Event of
Default, any monies or property actually received by the Administrative Agent or the Administrative
Agent pursuant to this Agreement or any other Loan Document, the exercise of any rights or remedies
under any Security Document or any other agreement with any Loan Party which secures any of the
Obligations, shall be applied in the following order:

     (a) First, to payment of the reasonable expenses, liabilities, losses, costs, duties,
fees, charges or other moneys whatsoever (together with interest payable thereon) as may have been
paid or incurred in, about or incidental to any sale or other realization of Collateral, including
reasonable compensation to the Administrative Agent’s agents and counsel, and to the ratable
payment of any other unreimbursed reasonable expenses and indemnities for which the Administrative
Agent or any Secured Party is to be reimbursed pursuant to this Agreement or any other Loan
Document, in each case that are then due and payable;

     (b) Second, to the ratable payment of accrued but unpaid fees of the Administrative
Agent, commitment fees, letter of credit fees, and fronting fees owing to the Administrative Agent,
the Issuing Bank, and the Lenders in respect of the Revolving Advances and Letters of Credit under
this Agreement;

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     (c) Third, to the ratable payment of accrued but unpaid interest on the Revolving
Advances then due and payable under this Agreement;

     (d) Fourth, ratably, according to the then unpaid amounts thereof, without preference
or priority of any kind among them, to the ratable payment of all other Obligations then due and
payable which relate to Revolving Advances and Letters of Credit and which are owing to the
Administrative Agent, the Issuing Bank and the Lenders;

     (e) Fifth, ratably, according to the unpaid termination amounts thereof, to the
payment of all obligations of the Borrower or its Subsidiaries owing to any Swap Counterparty under
any Swap Contract, if any, then due and payable;

     (f) Sixth, to the ratable payment of any other outstanding Obligations then due and
payable; and

     (g) Seventh, any excess after payment in full of all Obligations shall be paid to the
Borrower or any other Loan Party as appropriate or to such other Person who may be lawfully
entitled to receive such excess.

     Section 7.07 Administrative Agent’s Account. The Borrower and the Administrative
Agent shall establish a Collateral Account and the Borrower shall execute any documents and
agreements, including the Administrative Agent’s standard form assignment of deposit accounts, that
the Administrative
Agent reasonably requests in connection therewith to establish the Collateral Account and
grant the Administrative Agent an Acceptable Security Interest in such account and the funds
therein. The Borrower hereby pledges to the Administrative Agent and grants the Administrative
Agent a security interest in the Collateral Account, all funds held therein from time to time, and
all proceeds thereof as security for the payment of the Obligations. Funds held in the Collateral
Account shall be held as cash collateral for the Obligations. After the occurrence and during the
continuance of an Event of Default, funds held in the Collateral Account shall be held as cash
collateral for the Obligations and promptly applied by the Administrative Agent to any outstanding
Obligations that exist or occur. Provided that no Default or Event of Default has occurred and is
continuing, to the extent that any surplus funds are held in the Collateral Account above the
outstanding Revolving Advance, the Administrative Agent may release to the Borrower at the
Borrower’s written request any funds held in the Collateral Account. The Administrative Agent
shall exercise reasonable care in the custody and preservation of any funds held in the Collateral
Account and shall be deemed to have exercised such care if such funds are accorded treatment
substantially equivalent to that which the Administrative Agent accords its own property, it being
understood that the Administrative Agent shall not have any responsibility for taking any necessary
steps to preserve rights against any parties with respect to any such funds. Funds held in the
Administrative Agent’s Account shall be invested in Cash Equivalents maintained with, and under the
sole dominion and control of, the Administrative Agent or in another investment if mutually agreed
upon by the Borrower and the Administrative Agent, but the Administrative Agent shall have no other
obligation to make any other investment of the funds therein. The Administrative Agent shall
exercise reasonable care in the custody and preservation of any funds held in the Administrative
Agent’s Account and shall be deemed to have exercised such care if such funds are accorded
treatment substantially equivalent to that which the Administrative Agent accords its own property,
it being

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understood that the Administrative Agent shall not have any responsibility for taking any
necessary steps to preserve rights against any parties with respect to any such funds.

ARTICLE VIII

THE GUARANTY

     Section 8.01 Liabilities Guaranteed. Each Guarantor hereby, joint and severally,
irrevocably and unconditionally guarantees the prompt payment at maturity of the Obligations.

     Section 8.02 Nature of Guaranty. This guaranty is an absolute, irrevocable, completed
and continuing guaranty of payment and not a guaranty of collection, and no notice of the
Obligations or any extension of credit already or hereafter contracted by or extended to the
Borrower need be given to any Guarantor. This guaranty may not be revoked by any Guarantor and
shall continue to be effective with respect to the Obligations arising or created after any
attempted revocation by such Guarantor and shall remain in full force and effect until the
Obligations are paid in full and the Commitments are terminated, notwithstanding that from time to
time prior thereto no Obligations may be outstanding. The Borrower and the Lenders may modify,
alter, rearrange,
extend for any period and/or renew from time to time, the Obligations, and the Lenders may
waive any Default or Events of Default without notice to any Guarantor and in such event each
Guarantor will remain fully bound hereunder on the Obligations. This guaranty shall continue to be
effective or be reinstated, as the case may be, if at any time any payment of the Obligations is
rescinded or must otherwise be returned by any of the Lenders upon the insolvency, bankruptcy or
reorganization of the Borrower or otherwise, all as though such payment had not been made. This
guaranty may be enforced by the Administrative Agent and any subsequent holder of any of the
Obligations and shall not be discharged by the assignment or negotiation of all or part of the
Obligations. Each Guarantor hereby expressly waives presentment, demand, notice of non-payment,
protest and notice of protest and dishonor, notice of Default or Event of Default, and also notice
of acceptance of this guaranty, acceptance on the part of the Lenders being conclusively presumed
by the Lenders’ request for this guaranty and the Guarantors’ being party to this Agreement.

     Section 8.03 Agent’s Rights. Each Guarantor authorizes the Administrative Agent,
without notice or demand and without affecting any Guarantor’s liability hereunder, to take and
hold security for the payment of its obligations under this Article VIII and/or the
Obligations, and exchange, enforce, waive and release any such security; and to apply such security
and direct the order or manner of sale thereof as the Administrative Agent in its discretion may
determine, and to obtain a guaranty of the Obligations from any one or more Persons and at any time
or times to enforce, waive, rearrange, modify, limit or release any of such other Persons from
their obligations under such guaranties.

     Section 8.04 Guarantor’s Waivers.

     (a) General. Each Guarantor waives any right to require any of the Lenders to (i)
proceed against the Borrower or any other person liable on the Obligations, (ii) enforce any of
their rights against any other guarantor of the Obligations, (iii) proceed or enforce any of their
rights against or exhaust any security given to secure the Obligations, (iv) have the Borrower

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joined with any Guarantor in any suit arising out of this Article VIII and/or the
Obligations, or (v) pursue any other remedy in the Lenders’ powers whatsoever. It is agreed between
the Guarantors and the Lenders that the foregoing waivers are of the essence of the transaction
contemplated by this Agreement and the other Loan Documents and that, but for this Guaranty and
such waivers, the Lenders would not extend or continue to extend credit under this Agreement. The
Lenders shall not be required to mitigate damages or take any action to reduce, collect or enforce
the Obligations. Guarantor waives any defense arising by reason of any disability, lack of
corporate authority or power, or other defense of the Borrower or any other guarantor of the
Obligations, and shall remain liable hereon regardless of whether the Borrower or any other
guarantor be found not liable thereon for any reason. Whether and when to exercise any of the
remedies of the Lenders under any of the Loan Documents shall be in the sole and absolute
discretion of the Administrative Agent, and no delay by the Administrative Agent in enforcing any
remedy, including delay in conducting a foreclosure sale, shall be a defense to any Guarantor’s
liability under this Article VIII.

     (b) In addition to the waivers contained in Section 8.04(a) hereof, the Guarantors
waive, and agree that they shall not at any time insist upon, plead or in any manner whatsoever
claim or take the benefit or advantage of, any appraisal, valuation, stay, extension, marshaling of
assets or redemption laws, or exemption, whether now or at any time hereafter in force, which may
delay, prevent or otherwise affect the performance by the Guarantors of their obligations under, or
the enforcement by any Agent or the Lenders of, this Guaranty. The Guarantors hereby waive
diligence, presentment and demand (whether for nonpayment or protest or of acceptance, maturity,
extension of time, change in nature or form of the Obligations, acceptance of further security,
release of further security, composition or agreement arrived at as to the amount of, or the terms
of, the Obligations, notice of adverse change in the Borrower’s financial condition or any other
fact which might materially increase the risk to the Guarantors) with respect to any of the
Obligations or all other demands whatsoever and waive the benefit of all provisions of law which
are or might be in conflict with the terms of this Article VIII. The Guarantors, jointly and
severally, represent, warrant and agree that, as of the date of this Guaranty, their obligations
under this Guaranty are not subject to any offsets or defenses of any kind against any Agent, the
Lenders, the Borrower or any other Person that executes a Loan Document. The Guarantors further
jointly and severally agree that their obligations under this Guaranty shall not be subject to any
counterclaims, offsets or defenses of any kind which may arise in the future against any Agent, the
Lenders, the Borrower or any other Person that executes a Loan Document.

     (c) Subrogation. Until the Obligations have been paid in full, each Guarantor waives
all rights of subrogation or reimbursement against the Borrower, whether arising by contract or
operation of law (including, without limitation, any such right arising under any federal, state or
other applicable bankruptcy or insolvency laws) and waives any right to enforce any remedy which
the Lenders now have or may hereafter have against the Borrower, and waives any benefit or any
right to participate in any security now or hereafter held by the Administrative Agent or any
Lender.

     Section 8.05 Maturity of Obligations, Payment. Each Guarantor agrees that if the
maturity of any of the Obligations is accelerated by bankruptcy or otherwise, such maturity shall
also be deemed accelerated for the purpose of this Article VIII without demand or notice to
any Guarantor. Each Guarantor will, forthwith upon notice from the Administrative Agent, jointly

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and severally pay to the Administrative Agent the amount due and unpaid by the Borrower and
guaranteed hereby. The failure of the Administrative Agent to give this notice shall not in any way
release any Guarantor hereunder.

     Section 8.06 Agent’s Expenses. If any Guarantor fails to pay the Obligations after
notice from the Administrative Agent of the Borrower’s failure to pay any Obligations at maturity,
and if the Administrative Agent obtains the services of an attorney for collection of amounts owing
by any Guarantor hereunder, or obtaining advice of counsel in respect of any of their rights under
this Article VIII, or if suit is filed to enforce this Article VIII, or if
proceedings are had in any bankruptcy, probate, receivership or other judicial proceedings for the
establishment or collection of any amount owing by any Guarantor hereunder, or if any amount owing
by any Guarantor hereunder is
collected through such proceedings, each Guarantor jointly and severally agrees to pay to the
Administrative Agent the Administrative Agent’s reasonable attorneys’ fees.

     Section 8.07 Liability. It is expressly agreed that the liability of each Guarantor
for the payment of the Obligations guaranteed hereby shall be primary and not secondary.

     Section 8.08 Events and Circumstances Not Reducing or Discharging any Guarantor’s
Obligations. Each Guarantor hereby consents and agrees to each of the following to the fullest
extent permitted by law, and agrees that each Guarantor’s obligations under this Article
VIII shall not be released, diminished, impaired, reduced or adversely affected by any of the
following, and waives any rights (including without limitation rights to notice) which each
Guarantor might otherwise have as a result of or in connection with any of the following:

     (a) Modifications, etc. Any renewal, extension, modification, increase, decrease,
alteration or rearrangement of all or any part of the Obligations, or this Agreement or any
instrument executed in connection therewith, or any contract or understanding between the Borrower
and any of the Lenders, or any other Person, pertaining to the Obligations, or the waiver or
consent by any Agent or the Lenders with respect to any of the provisions hereof or thereof, or any
modification or termination of the terms of any intercreditor or subordination agreement pursuant
to which claims of other creditors against any Guarantor or Borrower are subordinated to the claims
of the Lenders or pursuant to which the Obligations are subordinated to claims of other creditors;

     (b) Adjustment, etc. Any adjustment, indulgence, forbearance or compromise that might
be granted or given by any of the Lenders to the Borrower or any Guarantor or any Person liable on
the Obligations;

     (c) Condition of the Borrower or any Guarantor. The insolvency, bankruptcy
arrangement, adjustment, composition, liquidation, disability, dissolution, death or lack of power
of the Borrower or any other Guarantor or any other Person at any time liable for the payment of
all or part of the Obligations; or any dissolution of the Borrower or any other Guarantor, or any
sale, lease or transfer of any or all of the assets of the Borrower or any other Guarantor, or any
changes in the shareholders, partners, or members of the Borrower or any other Guarantor; or any
reorganization of the Borrower or any other Guarantor;

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     (d) Invalidity of Obligations. The invalidity, illegality or unenforceability of all
or any part of the Obligations, or any document or agreement executed in connection with the
Obligations, for any reason whatsoever, including without limitation the fact that the Obligations,
or any part thereof, exceed the amount permitted by law, the act of creating the Obligations or any
part thereof is ultra vires, the officers or representatives executing the documents or otherwise
creating the Obligations acted in excess of their authority, the Obligations violate applicable
usury laws, the Borrower has valid defenses, claims or offsets (whether at law, in equity or by
agreement) which render the Obligations wholly or partially uncollectible from the Borrower, the
creation, performance or repayment of the Obligations (or
the execution, delivery and performance of any document or instrument representing part of the
Obligations or executed in connection with the Obligations, or given to secure the repayment of the
Obligations) is illegal, uncollectible, legally impossible or unenforceable, or this Agreement or
other documents or instruments pertaining to the Obligations have been forged or otherwise are
irregular or not genuine or authentic;

     (e) Release of Obligors. Any full or partial release of the liability of the Borrower
on the Obligations or any part thereof, of any co-guarantors, or any other Person now or hereafter
liable, whether directly or indirectly, jointly, severally, or jointly and severally, to pay,
perform, guarantee or assure the payment of the Obligations or any part thereof, it being
recognized, acknowledged and agreed by any Guarantor that such Guarantor may be required to pay the
Obligations in full without assistance or support of any other Person, and no Guarantor has been
induced to enter into this Article VIII on the basis of a contemplation, belief,
understanding or agreement that other parties other than the Borrower will be liable to perform the
Obligations, or the Lenders will look to other parties to perform the Obligations;

     (f) Other Security. The taking or accepting of any other security, collateral or
guaranty, or other assurance of payment, for all or any part of the Obligations;

     (g) Release of Collateral etc. Any release, surrender, exchange, subordination,
deterioration, waste, loss or impairment (including without limitation negligent, willful,
unreasonable or unjustifiable impairment) of any collateral, property or security, at any time
existing in connection with, or assuring or securing payment of, all or any part of the
Obligations;

     (h) Care and Diligence. The failure of the Lenders or any other Person to exercise
diligence or reasonable care in the preservation, protection, enforcement, sale or other handling
or treatment of all or any part of such collateral, property or security;

     (i) Status of Liens. The fact that any collateral, security, security interest or lien
contemplated or intended to be given, created or granted as security for the repayment of the
Obligations shall not be properly perfected or created, or shall prove to be unenforceable or
subordinate to any other security interest or lien, it being recognized and agreed by each
Guarantor that no Guarantor is entering into this Article VIII in reliance on, or in
contemplation of the benefits of, the validity, enforceability, collectibility or value of any of
the collateral for the Obligations;

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     (j) Payments Rescinded. Any payment by the Borrower to the Lenders is held to
constitute a preference under the bankruptcy laws, or for any reason the Lenders are required to
refund such payment or pay such amount to the Borrower or someone else; or

     (k) Other Actions Taken or Omitted. Any other action taken or omitted to be taken
with respect to this Agreement, the Obligations, or the security and collateral therefor, whether
or not such action or omission prejudices any Guarantor or increases the likelihood that any
Guarantor will be required to pay the Obligations pursuant to the terms hereof, it being the
unambiguous and unequivocal intention of each Guarantor that each Guarantor shall be obligated to
joint and severally pay the Obligations when due, notwithstanding any occurrence,
circumstance, event, action, or omission whatsoever, whether contemplated or uncontemplated,
and whether or not otherwise or particularly described herein, except for the full and final
payment and satisfaction of the Obligations.

     Section 8.09 Subordination of All Guarantor Claims.

     (a) As used herein, the term “Guarantor Claims” shall mean all debts and liabilities of the
Borrower or any Subsidiary of the Borrower to any Guarantor, whether such debts and liabilities now
exist or are hereafter incurred or arise, or whether the obligation of the Borrower or such
Subsidiary thereon be direct, contingent, primary, secondary, several, joint and several, or
otherwise, and irrespective of whether such debts or liabilities be evidenced by note, contract,
open account, or otherwise, and irrespective of the person or persons in whose favor such debts or
liabilities may, at their inception, have been, or may hereafter be created, or the manner in which
they have been or may hereafter be acquired by any Guarantor. The Guarantor Claims shall include
without limitation all rights and claims of any Guarantor against the Borrower or any Subsidiary of
the Borrower arising as a result of subrogation or otherwise as a result of such Guarantor’s
payment of all or a portion of the Obligations.

     (b) The Borrower and each Guarantor hereby (i) authorizes the Administrative Agent and the
Lenders to demand specific performance of the terms of this Section 8.09, whether or not
the Borrower or any Guarantor shall have complied with any of the provisions hereof applicable to
it, at any time when it shall have failed to comply with any provisions of this Section
8.09 which are applicable to it and (ii) irrevocably waives any defense based on the adequacy
of a remedy at law, which might be asserted as a bar to such remedy of specific performance.

     (c) Upon any distribution of assets of any Loan Party in any dissolution, winding up,
liquidation or reorganization (whether in bankruptcy, insolvency or receivership proceedings or
upon an assignment for the benefit of creditors or otherwise):

     (i) The Lenders shall first be entitled to receive payment in full in cash of the
Obligations before the Borrower or any Guarantor is entitled to receive any payment on
account of the Guarantor Claims.

     (ii) Any payment or distribution of assets of any Loan Party of any kind or character,
whether in cash, property or securities, to which the Borrower or any Guarantor would be
entitled except for the provisions of this Section 8.09(c), shall be paid by the
liquidating trustee or agent or other Person making such payment or

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distribution directly to
the Lenders, to the extent necessary to make payment in full of all Obligations remaining
unpaid after giving effect to any concurrent payment or distribution or provisions therefor
to the Lenders.

     (d) No right of the Lenders or any other present or future holders of any Obligations to
enforce the subordination provisions herein shall at any time in any way be prejudiced or impaired
by any act or failure to act on the part of any Loan Party or by any act or failure to act, in good
faith, by any such holder, or by any noncompliance by the Borrower or any Guarantor
with the terms hereof, regardless of any knowledge thereof which any such holder may have or
be otherwise charged with.

     Section 8.10 Claims in Bankruptcy. In the event of receivership, bankruptcy,
reorganization, arrangement, debtor’s relief, or other insolvency proceedings involving the
Borrower or any Subsidiary of the Borrower, as debtor, the Lenders shall have the right to prove
their claim in any proceeding, so as to establish their rights hereunder and receive directly from
the receiver, trustee or other court custodian, dividends and payments which would otherwise be
payable upon Guarantor Claims. Each Guarantor hereby assigns such dividends and payments to the
Lenders. Should the Administrative Agent or any Lender receive, for application upon the
Obligations, any such dividend or payment which is otherwise payable to any Guarantor, and which,
as between the Borrower or any Subsidiary of the Borrower and any Guarantor, shall constitute a
credit upon the Guarantor Claims, then upon payment in full of the Obligations, such Guarantor
shall become subrogated to the rights of the Lenders to the extent that such payments to the
Lenders on the Guarantor Claims have contributed toward the liquidation of the Obligations, and
such subrogation shall be with respect to that proportion of the Obligations which would have been
unpaid if the Administrative Agent or a Lender had not received dividends or payments upon the
Guarantor Claims.

     Section 8.11 Payments Held in Trust. In the event that notwithstanding Sections
8.09 and 8.10 above, any Guarantor should receive any funds, payments, claims or
distributions which is prohibited by such Sections, such Guarantor agrees to hold in trust for the
Lenders an amount equal to the amount of all funds, payments, claims or distributions so received,
and agrees that it shall have absolutely no dominion over the amount of such funds, payments,
claims or distributions except to pay them promptly to the Administrative Agent, and each Guarantor
covenants promptly to pay the same to the Administrative Agent.

     Section 8.12 Benefit of Guaranty. The provisions of this Article VIII are for
the benefit of the Lenders, their successors, and their permitted transferees, endorsees and
assigns. In the event all or any part of the Obligations are transferred, endorsed or assigned by
the Lenders, as the case may be, to any Person or Persons in accordance with the terms of this
Agreement, any reference to the “Lenders” herein, as the case may be, shall be deemed to refer
equally to such Person or Persons.

     Section 8.13 Reinstatement. This Article VIII shall remain in full force and
effect and continue to be effective in the event any petition is filed by or against the Borrower,
any Guarantor or any other Loan Party for liquidation or reorganization, in the event that any of
them becomes insolvent or makes an assignment for the benefit of creditors or in the event a
receiver, trustee or similar Person is appointed for all or any significant part of any of their
assets, and

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shall continue to be effective or be reinstated, as the case may be, if at any time
payment and performance of the Obligations, or any part thereof, is, pursuant to applicable law,
rescinded or reduced in amount, or must otherwise be restored or returned by the Lenders, whether
as a “voidable preference,” “fraudulent conveyance,” 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 Obligations shall be reinstated and deemed reduced only by such amount paid and
not so rescinded, reduced, restored or returned.

     Section 8.14 Liens Subordinate. Each Guarantor agrees that any liens, security
interests, judgment liens, charges or other encumbrances upon the Borrower’s or any Subsidiary of
the Borrower’s assets securing payment of the Guarantor Claims shall be and remain inferior and
subordinate to any liens, security interests, judgment liens, charges or other encumbrances upon
the Borrower’s or any Subsidiary of the Borrower’s assets securing payment of the Obligations,
regardless of whether such encumbrances in favor of any Guarantor, the Administrative Agent or the
Lenders presently exist or are hereafter created or attach.

     Section 8.15 Guarantor’s Enforcement Rights. Without the prior written consent of the
Lenders, until the Obligations have been paid in full, no Guarantor shall (a) exercise or enforce
any creditor’s right it may have against the Borrower or any Subsidiary of the Borrower, or (b)
foreclose, repossess, sequester or otherwise take steps or institute any action or proceeding
(judicial or otherwise, including without limitation the commencement of or joinder in any
liquidation, bankruptcy, rearrangement, debtor’s relief or insolvency proceeding) to enforce any
lien, mortgages, deeds of trust, security interest, collateral rights, judgments or other
encumbrances on assets of the Borrower or any Subsidiary of the Borrower held by Guarantor.

     Section 8.16 Limitation. It is the intention of the Guarantors and each Secured Party
that the amount of the Obligations guaranteed by each Guarantor shall be in, but not in excess of,
the maximum amount permitted by fraudulent conveyance, fraudulent transfer and similar Legal
Requirement applicable to such Guarantor. Accordingly, notwithstanding anything to the contrary
contained in this Article VIII or in any other agreement or instrument executed in
connection with the payment of any of the Obligations guaranteed hereby, the amount of the
Obligations guaranteed by a Guarantor under this Article VIII shall be limited to an
aggregate amount equal to the largest amount that would not render such Guarantor’s obligations
hereunder subject to avoidance under Section 548 of the United States Bankruptcy Code or any
comparable provision of any other applicable law.

     Section 8.17 Contribution Rights.

     (a) To the extent that any payment is made under this Guaranty (a “Guarantor
Payment”), by a Guarantor, which Guarantor Payment, taking into account all other Guarantor
Payments then previously or concurrently made by all other Guarantors, exceeds the amount which
such Guarantor would otherwise have paid if each Guarantor had paid the aggregate Obligations
satisfied by such Guarantor Payment in the same proportion that such Guarantor’s Allocable Amount
(as defined below) (in effect immediately prior to such Guarantor Payment) bore to the aggregate
Allocable Amounts of all of the Guarantors in effect immediately prior to the making of such
Guarantor Payment, then, following the date on which the Obligations shall be paid and satisfied in
full and each Guarantor shall have performed all of its obligations

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hereunder, such Guarantor shall
be entitled to receive contribution and indemnification payments from, and be reimbursed by, each
of the other Guarantors for the amount of such excess, pro rata
based upon their respective Allocable Amounts in effect immediately prior to such Guarantor
Payment.

     (b) As of any date of determination, the “Allocable Amount” of any Guarantor shall be equal to
the maximum amount of the claim which could then be recovered from such Guarantor under this
Guaranty without rendering such claim voidable or avoidable under Section 548 of Chapter 11 of the
Bankruptcy Code or under any applicable state Uniform Fraudulent Transfer Act, Uniform Fraudulent
Conveyance Act or similar statute or common law.

     (c) This Section 8.17 is intended only to define the relative rights of the Guarantors
and nothing set forth in this Section 8.17 is intended to or shall impair the obligations
of the Guarantors, jointly and severally, to pay any amounts as and when the same shall become due
and payable in accordance with the terms of this Guaranty.

     (d) The rights of the parties under this Section 8.17 shall be exercisable upon the
date the Obligations shall be paid and satisfied in full and each Guarantor shall have performed
all of its obligations hereunder.

     (e) The parties hereto acknowledge that the right of contribution and indemnification
hereunder shall constitute assets of any Guarantor to which such contribution and indemnification
is owing.

     Section 8.18 Release of Guarantors. Upon the sale or disposition of any Guarantor
pursuant to the terms of this Agreement to any Person other than the Borrower or any other
Guarantor, the Administrative Agent shall, at the Borrower’ expense, execute and deliver to such
Guarantor such documents as such Guarantor shall reasonably require and take any other actions
reasonably required to evidence or effect the release of such Guarantor from this Agreement and the
other Loan Documents.

ARTICLE IX

THE ADMINISTRATIVE AGENT

     Section 9.01 Appointment and Authority. Each of the Lenders and the Issuing Bank
hereby irrevocably appoints Fortis to act on its behalf as the Administrative Agent hereunder and
under the other Loan Documents and authorizes the Agents to take such actions on its behalf and to
exercise such powers as are delegated to such Agent by the terms hereof or thereof, together with
such actions and powers as are reasonably incidental thereto. The provisions of this Article are
solely for the benefit of the Administrative Agent, the Lenders and the Issuing Bank, and no Loan
Party shall have rights as a third party beneficiary of any of such provisions. Each of the
Secured Parties hereby acknowledges and confirms their agreement that the Administrative Agent is
subject to certain Security Documents as trustee for and on behalf of the Lenders or the terms of
the declaration of trust and other terms and conditions set forth in the applicable Security
Documents.

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     Section 9.02 Rights as a Lender. The Person serving as the Administrative Agent
hereunder shall have the same rights and powers in its capacity as a Lender as any other Lender and
may exercise the same as though it were not the Administrative Agent and the term “Lender” or
“Lenders” shall, unless otherwise expressly indicated or unless the context otherwise requires,
include the Person serving as the Administrative Agent hereunder in its individual capacity. Such
Person and its Affiliates may accept deposits from, lend money to, act as the financial advisor or
in any other advisory capacity for and generally engage in any kind of business with the Borrower
or any Subsidiary or other Affiliate thereof as if such Person were not the Administrative Agent
hereunder and without any duty to account therefor to the Lenders.

     Section 9.03 Exculpatory Provisions. The Administrative Agent shall not have any
duties or obligations except those expressly set forth herein and in the other Loan Documents.
Without limiting the generality of the foregoing, the Administrative Agent:

     (a) shall not be subject to any fiduciary or other implied duties, regardless of whether a
Default has occurred and is continuing;

     (b) shall not have any duty to take any discretionary action or exercise any discretionary
powers, except discretionary rights and powers expressly contemplated hereby or by the other Loan
Documents that such Agent is required to exercise as directed in writing by the Majority Lenders
(or such other number or percentage of the Lenders as shall be expressly provided for herein or in
the other Loan Documents), provided that such Agent shall not be required to take any action that,
in its opinion or the opinion of its counsel, may expose such Agent to liability or that is
contrary to any Loan Document or applicable law; and

     (c) shall not, except as expressly set forth herein and in the other Loan Documents, have any
duty to disclose, and shall not be liable for the failure to disclose, any information relating to
the Borrower or any of its Affiliates that is communicated to or obtained by the Person serving as
Agent or any of its Affiliates in any capacity.

The Administrative Agent shall not be liable for any action taken or not taken by it (i) with the
consent or at the request of the Majority Lenders (or such other number or percentage of the
Lenders as shall be necessary, or as such Agent shall believe in good faith shall be necessary,
under the circumstances as provided in Sections 10.01) or (ii) in the absence of its own
gross negligence or willful misconduct. The Administrative Agent shall be deemed not to have
knowledge of any Default unless and until notice describing such Default is given to the
Administrative Agent by the Borrower, a Guarantor, a Lender or the Issuing Bank.

The Administrative Agent shall not be responsible for or have any duty to ascertain or inquire into
(i) any statement, warranty or representation made in or in connection with this Agreement or any
other Loan Document, (ii) the contents of any certificate, report or other document delivered
hereunder or thereunder or in connection herewith or therewith, (iii) the performance or observance
of any of the covenants, agreements or other terms or conditions set forth herein or therein or the
occurrence of any Default, (iv) the validity, enforceability, effectiveness or genuineness of this
Agreement, any other Loan Document or any other agreement, instrument or
document or (v) the satisfaction of any condition set forth in Article III or elsewhere
herein,

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other than to confirm receipt of items expressly required to be delivered to the
Administrative Agent.

     Section 9.04 Reliance by the Administrative Agent. The Administrative Agent shall be
entitled to rely upon, and shall not incur any liability for relying upon, any notice, request,
certificate, consent, statement, instrument, document or other writing (including any electronic
message, Internet or intranet website posting or other distribution) believed by it to be genuine
and to have been signed, sent or otherwise authenticated by the proper Person. The Administrative
Agent also may rely upon any statement made to it orally or by telephone and believed by it to have
been made by the proper Person, and shall not incur any liability for relying thereon. In
determining compliance with any condition hereunder to the making of a Revolving Advance, or the
issuance of a Letter of Credit, that by its terms must be fulfilled to the satisfaction of a Lender
or the Issuing Bank, the Administrative Agent may presume that such condition is satisfactory to
such Lender or the Issuing Bank unless the Administrative Agent shall have received notice to the
contrary from such Lender or the Issuing Bank prior to the making of such Advance or the issuance
of such Letter of Credit. The Administrative Agent may consult with legal counsel (who may be
counsel for a Loan Party), independent accountants and other experts selected by it, and shall not
be liable for any action taken or not taken by it in accordance with the advice of any such
counsel, accountants or experts.

     Section 9.05 Delegation of Duties. The Administrative Agent may perform any and all of
its duties and exercise its rights and powers hereunder or under any other Loan Document by or
through any one or more sub-agents appointed by the Administrative Agent. The Administrative Agent
and any such sub-agent may perform any and all of its duties and exercise its rights and powers by
or through their respective Related Parties. The exculpatory provisions of this Article shall apply
to any such sub-agent and to the Related Parties of the Administrative Agent and any such
sub-agent, and shall apply to their respective activities in connection with the syndication of the
credit facilities provided for herein as well as activities as the Administrative Agent.

     Section 9.06 Resignation of the Administrative Agent. The Administrative Agent may at
any time give notice of its resignation to the Lenders, the Issuing Bank and the Borrower. Upon
receipt of any such notice of resignation, the Majority Lenders shall have the right, and provided
that no Default or Event of Default exists, with the consent of the Borrower (which consent shall
not be unreasonably withheld or delayed), to appoint a successor, which shall be a Lender with an
office in New York, or an Affiliate of any such Lender with an office in New York. If no such
successor shall have been so appointed by the Majority Lenders and shall have accepted such
appointment within 60 days after the retiring Agent gives notice of its resignation, then the
retiring Administrative Agent may on behalf of the Lenders and the Issuing Bank, appoint a
successor Administrative Agent meeting the qualifications set forth above provided and consented to
by the Borrower (provided that no Default or Event of Default exists and which consent shall not be
unreasonably withheld or delayed) that if the Administrative Agent shall notify the Borrower and
the Lenders that no qualifying Person has accepted such appointment, then such resignation shall
nonetheless become effective in accordance with such notice and (1)
the retiring Agent shall be discharged from its duties and obligations hereunder and under the
other Loan Documents (except that in the case of any collateral security held by the Administrative
Agent on behalf of the Lenders or the Issuing Bank under any of the Loan

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Documents, the retiring
Administrative Agent shall continue to hold such collateral security until such time as a successor
Administrative Agent is appointed) and (2) all payments, communications and determinations provided
to be made by, to or through such Administrative Agent shall instead be made by or to each Lender
and the Issuing Bank directly, until such time as the Majority Lenders appoint a successor
Administrative Agent as provided for above in this paragraph. Upon the acceptance of a successor’s
appointment as Agent hereunder, such successor shall succeed to and become vested with all of the
rights, powers, privileges and duties of the retiring (or retired) Administrative Agent, and the
retiring Administrative Agent shall be discharged from all of its duties and obligations hereunder
or under the other Loan Documents (if not already discharged therefrom as provided above in this
paragraph). The fees payable by the Borrower to a successor Administrative Agent shall be the same
as those payable to its predecessor unless otherwise agreed between the Borrower and such
successor. After the retiring Administrative Agent’s resignation hereunder and under the other Loan
Documents, the provisions of this Article and Section 10.04 shall continue in effect for
the benefit of such retiring Administrative Agent, its sub-agents and their respective Related
Parties in respect of any actions taken or omitted to be taken by any of them while the retiring
Administrative Agent was acting as Administrative Agent.

     Section 9.07 Non-Reliance on Administrative Agent and Other Lenders. Each Lender and
the Issuing Bank acknowledges that it has, independently and without reliance upon the
Administrative Agent or any other Lender or any of their Related Parties and based on such
documents and information as it has deemed appropriate, made its own credit analysis and decision
to enter into this Agreement. Each Lender and the Issuing Bank also acknowledges that it will,
independently and without reliance upon any Agent or any other Lender or any of their Related
Parties and based on such documents and information as it shall from time to time deem appropriate,
continue to make its own decisions in taking or not taking action under or based upon this
Agreement, any other Loan Document or any related agreement or any document furnished hereunder or
thereunder.

     Section 9.08 Indemnification. Whether or not the transactions contemplated hereby
are consummated, the Lenders severally agree to indemnify upon demand the Administrative Agent, the
Issuing Bank and each Related Party of any of the foregoing (to the extent not reimbursed by the
Loan Parties), according to their respective Pro Rata Shares, and hold harmless such Indemnitee
from and against any and all Indemnified Liabilities in all cases, whether or not caused by or
arising, in whole or in part, out of the negligence of any Related Party; provided,
however that no Lender shall be liable for the payment to any Related Party for any portion
of such Indemnified Liabilities to the extent determined in a final, nonappealable judgment by a
court of competent jurisdiction to have resulted from such Related Party’s own gross negligence or
willful misconduct; provided, however, that no action taken in accordance with the
directions of the Majority Lenders shall be deemed to constitute gross negligence or willful
misconduct for purposes of this Section. Without limitation of the foregoing, each Lender
agrees to reimburse the Administrative Agent and the Issuing Bank promptly upon demand for its
ratable share of any out-of-pocket expenses (including all fees, expenses and disbursements of any
law firm or other external counsel and, without duplication, the allocated cost of

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internal legal
services and all expenses and disbursements of internal counsel) incurred by the Administrative
Agent or the Issuing Bank in connection with the preparation, execution, delivery, administration,
modification, amendment, or enforcement (whether through negotiations, legal proceedings, or
otherwise) of, or legal advice in respect of rights or responsibilities under, this Agreement or
any other Loan Document, to the extent that the Administrative Agent or the Issuing Bank is not
reimbursed for such by the Loan Parties. The undertaking in this Section shall survive termination
of the Revolving Commitments, the payment of all other Obligations and the resignation of the
Administrative Agent.

     Section 9.09 Collateral and Guaranty Matters.

     (a) The Lenders irrevocably authorize the Administrative Agent, at its option and in its
discretion, without the necessity of any notice to or further consent from the Secured Parties:

     (i) to release any Lien on any property granted to or held by the Administrative Agent
under any Security Document (i) upon termination of the Revolving Commitments and payment in
full of all Obligations (other than contingent indemnification obligations) and the
expiration or termination of all Letters of Credit, (ii) that is sold or to be sold as part
of or in connection with any sale, or to be transferred in a transaction, permitted
hereunder or under any other Loan Document, or (iii) subject to Section 10.01, if
approved, authorized or ratified in writing by the Majority Lenders;

     (ii) to take any actions with respect to any Collateral or Security Documents which may
be necessary to perfect and maintain Acceptable Security Interests in and Liens upon the
Collateral granted pursuant to the Security Documents; and

     (iii) to take any action in exigent circumstances as may be reasonably necessary to
preserve any rights or privileges of the Secured Parties under the Loan Documents or
applicable Legal Requirements.

     (b) Upon the request of the Administrative Agent at any time, the Lenders will confirm in
writing the Administrative Agent’s authority to release particular types or items of Collateral
pursuant to this Section 9.09.

     (c) Each Loan Party hereby irrevocably appoints the Administrative Agent as such Loan Party’s
attorney-in-fact, with full authority to, after the occurrence and during the continuance of an
Event of Default, act for such Loan Party and in the name of such Loan Party to, in the
Administrative Agent’s discretion upon the occurrence and during the continuance of an Event of
Default, (i) file one or more financing or continuation statements, and amendments thereto,
relative to all or any part of the Collateral without the signature of such Loan Party
where permitted by law, (ii) to receive, endorse, and collect any drafts or other instruments,
documents, and chattel paper which are part of the Collateral, (iii) to ask, demand, collect, sue
for, recover, compromise, receive, and give acquittance and receipts for moneys due and to become
due under or in respect of any of the Collateral, (iv) to file any claims or take any action or
institute any proceedings which the Administrative Agent may reasonably deem necessary or

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desirable
for the collection of any of the Collateral or otherwise to enforce the rights of the
Administrative Agent with respect to any of the Collateral and (v) if any Loan Party fails to
perform any covenant contained in this Agreement or the other Security Documents after the
expiration of any applicable grace periods, the Administrative Agent may itself perform, or cause
performance of, such covenant, and such Loan Party shall pay for the expenses of the Administrative
Agent incurred in connection therewith in accordance with Section 10.04. The power of
attorney granted hereby is coupled with an interest and is irrevocable.

     (d) The powers conferred on the Administrative Agent under this Agreement and the other
Security Documents are solely to protect its interest in the Collateral and shall not impose any
duty upon it to exercise any such powers. Beyond the safe custody thereof, the Administrative
Agent and each Lender shall have no duty with respect to any Collateral in its possession or
control (or in the possession or control of any agent or bailee) or with respect to any income
thereon or the preservation of rights against prior parties or any other rights pertaining thereto.
The Administrative Agent shall be deemed to have exercised reasonable care in the custody and
preservation of the Collateral in its possession if the Collateral is accorded treatment
substantially equal to that which the Administrative Agent accords its own property. Neither the
Administrative Agent nor any Lender shall be liable or responsible for any loss or damage to any of
the Collateral, or for any diminution in the value thereof, by reason of the act or omission of any
warehouseman, carrier, forwarding agency, consignee, broker or other agent or bailee selected by
Borrower or selected by the Administrative Agent in good faith.

     Section 9.10 No Other Duties, etc. Anything herein to the contrary notwithstanding,
none of the Arrangers or other titles listed on the cover page hereof shall have any powers, duties
or responsibilities under this Agreement or any of the other Loan Documents, except in its
capacity, as applicable, as the Administrative Agent, a Lender or the Issuing Bank.

ARTICLE X

MISCELLANEOUS

     Section 10.01 Amendments, Etc. No amendment or waiver of any provision of this
Agreement or any other Loan Document (other than the Fee Letter), and no consent to any departure
by the Borrower or any other Loan Party therefrom, shall in any event be effective unless the same
shall be in writing and signed by the Majority Lenders and the Borrower, and then such waiver or
consent shall be effective only in the specific instance and for the specific purpose for which
given; provided, however, that no amendment, waiver or consent shall:

     (a) waive any condition set forth in Article III without the written consent of each
Lender;

     (b) extend or increase the Revolving Commitment of any Lender (or reinstate any Commitment
terminated pursuant to Section 7.02) without the written consent of such Lender;

     (c) postpone any date fixed by this Agreement for any mandatory reduction of the Revolving
Commitments without the written consent of each Lender;

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     (d) postpone any date fixed by this Agreement or any other Loan Document for any payment or
mandatory prepayment of principal, interest, fees or other amounts due to the Lenders (or any of
them) hereunder or under any other Loan Document without the written consent of each Lender
directly affected thereby;

     (e) reduce the principal of, or the rate of interest specified herein on, any Advance or
Reimbursement Obligation, or (subject to clause (iv) of the second proviso to this Section
10.01) any fees or other amounts payable hereunder or under any other Loan Document without the
prior written consent of each Lender directly affected thereby; provided, however,
that only the consent of the Majority Lenders shall be necessary to waive any obligation of the
Borrower to pay interest at the Default Rate;

     (f) change Section 2.12 in a manner that would alter the pro rata sharing of payments
required thereby without the written consent of each Lender;

     (g) change any provision of this Section, or the definition of “Majority Lenders” or any other
provision hereof specifying the number or percentage of Lenders required to amend, waive or
otherwise modify any rights hereunder or make any determination or grant any consent hereunder,
without the written consent of each Lender directly affected thereby;

     (h) change the definition of “Borrowing Base” or the components thereof without the written
consent of each Lender; or

     (i) release any Guarantor from the Guaranty or any of the Collateral without the written
consent of each Lender; provided, however, that any Guarantor or Collateral may be released if they
are sold or transferred as permitted hereunder;

and, provided further, that (i) no amendment, waiver or consent shall, unless in writing
and signed by the Issuing Bank in addition to the Lenders required above, affect the rights or
duties of the Issuing Bank under this Agreement or any Letter of Credit Application relating to any
Letter of Credit issued or to be issued by it; (ii) no amendment, waiver or consent shall, unless
in writing and signed by the Administrative Agent in addition to the Lenders required above, affect
the rights or duties of the Administrative Agent under this Agreement or any other Loan Document;
(iii) Section 10.06(g) may not be amended, waived or otherwise modified without the consent
of each Granting Lender all or any part of whose Revolving Advances are being funded by a SPC at
the time of such amendment, waiver or other modification; and (iv) the Fee Letter may be amended,
or rights or privileges thereunder waived, in a writing executed only by the parties thereto.

     Section 10.02 Notices, Etc.

     (a) General. Except in the case of notices and other communications expressly
permitted to be given by telephone (and except as provided in paragraph (c) below), all notices and
other communications provided for herein shall be in writing and shall be delivered by hand or
overnight courier service, mailed by certified or registered mail, sent by telecopier or (subject
to subsection (c) below) electronic mail address as follows:

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     (i) if to the Borrower or any other Loan Party, the Administrative Agent or the Issuing
Bank, to the address, facsimile number, electronic mail address or telephone number
specified for such Person on Schedule 10.02 or to such other address, facsimile
number, electronic mail address or telephone number as shall be designated by such party in
a notice to the other parties; and

     (ii) if to any other Lender, to the address, facsimile number, electronic mail address
or telephone number specified in its Administrative Questionnaire or to such other address,
facsimile number, electronic mail address or telephone number as shall be designated by such
party in a notice to the Administrative Agent.

Notices sent by hand or overnight courier service, or mailed by certified or registered mail, shall
be deemed to have been given when received; notices sent by telecopier shall be deemed to have been
given when sent (except that, if not given during normal business hours for the recipient, shall be
deemed to have been given on the next business day for the recipient) and confirmed received.
Notices delivered through electronic communications to the extent provided in paragraph (c) below,
shall be effective as provided in said paragraph (c). In no event shall a voicemail message be
effective as a notice, communication or confirmation hereunder.

     (b) Effectiveness of Facsimile Documents and Signatures. Loan Documents may be
transmitted and/or signed by facsimile. The effectiveness of any such documents and signatures
shall, subject to applicable Legal Requirements, have the same force and effect as manually-signed
originals and shall be binding on all Loan Parties, the Administrative Agent and the Lenders. The
Administrative Agent may also require that any such documents and signatures be confirmed by a
manually-signed original thereof; provided, however, that the failure to request or
deliver the same shall not limit the effectiveness of any facsimile document or signature.

     (c) Limited Use of Electronic Mail. Notices and other communications to the Lenders
and the Issuing Bank hereunder may be delivered or furnished by electronic communication (including
e-mail and Internet or intranet websites) pursuant to procedures approved by the Administrative
Agent in its sole discretion, provided that the foregoing shall not apply to notices to any
Lender or the Issuing Bank pursuant to Article II if such Lender or the Issuing Bank, as
applicable, has notified the Administrative Agent that it is incapable of receiving notices under
such Article by electronic communication. The Administrative Agent or the Borrower may, in its
discretion, agree to accept notices and other communications to it hereunder by electronic
communications pursuant to procedures approved by it, provided that approval of such
procedures may be limited to particular notices or communications. Unless the Administrative Agent
otherwise prescribes, (i) notices and other communications sent to an e-mail address shall be
deemed received upon the sender’s receipt of an acknowledgement from
the intended recipient (such as by the “return receipt requested” function, as available,
return e-mail or other written acknowledgement), provided that if such notice or other
communication is not sent during the normal business hours of the recipient, such notice or
communication shall be deemed to have been sent at the opening of business on the next business day
for the recipient, and (ii) notices or communications posted to an Internet or intranet website
shall be deemed received upon the deemed receipt by the intended recipient at its e-mail address as
described in the foregoing clause (i) of notification that such notice or communication is
available and identifying the website address therefor.

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     (d) Reliance by Administrative Agent and Lenders. The Administrative Agent and the
Lenders shall be entitled to rely and act upon any notices (including telephonic Borrowing Notices)
purportedly given by or on behalf of a Loan Party even if (i) such notices were not made in a
manner specified herein, were incomplete or were not preceded or followed by any other form of
notice specified herein, or (ii) the terms thereof, as understood by the recipient, varied from any
confirmation thereof. The Borrower shall indemnify the Agents, the Issuing Bank, each Lender
and their Related Parties from all losses, costs, expenses and liabilities resulting from the
reliance by such Person on each notice purportedly given by or on behalf of the Borrower. All
telephonic notices to and other communications with the Administrative Agent may be recorded by the
Administrative Agent, and each of the parties hereto hereby consents to such recording.

     Section 10.03 No Waiver; Cumulative Remedies. No failure on the part of any Lender or
the Administrative Agent to exercise, and no delay by any such Person in exercising, any right,
remedy, power or privilege hereunder shall operate as a waiver thereof; nor shall any single or
partial exercise of any such right preclude any other or further exercise thereof or the exercise
of any other right, remedy, power or privilege. The rights, remedies, powers and privileges herein
provided in this Agreement are cumulative and not exclusive of any rights, remedies, powers and
privileges provided by law.

     Section 10.04 Costs and Expenses. The Borrower shall pay (i) all reasonable
out-of-pocket expenses incurred by the Administrative Agent and their Affiliates (including the
reasonable fees, charges and disbursements of counsel for the Administrative Agent), in connection
with the syndication of the credit facilities provided for herein, the preparation, negotiation,
execution, delivery and administration of this Agreement and the other Loan Documents or any
amendments, modifications or waivers of the provisions hereof or thereof (whether or not the
transactions contemplated hereby or thereby shall be consummated), (ii) all reasonable
out-of-pocket expenses incurred by the Issuing Bank in connection with the issuance, amendment,
renewal or extension of any Letter of Credit or any demand for payment thereunder and (iii) all
out-of-pocket expenses incurred by the Administrative Agent, any Lender or the Issuing Bank
(including the fees, charges and disbursements of any counsel for the Administrative Agent, any
Lender or the Issuing Bank), and shall pay all fees and time charges for attorneys who may be
employees of the Administrative Agent, any Lender or the Issuing Bank, in connection with the
enforcement or protection of its rights (A) in connection with this Agreement and the other Loan
Documents, including its rights under this Section, or (B) in connection with the Revolving
Advances made or Letters of Credit issued hereunder, including all such out-of-pocket expenses
incurred during any workout, restructuring or negotiations in respect of such Loans or Letters
of Credit. The foregoing costs and expenses shall include all search, filing, recording, title
insurance and appraisal charges and fees and taxes related thereto, and other out-of-pocket
expenses incurred by the Administrative Agent and the cost of independent public accountants and
other outside experts retained by the Administrative Agent or any Lender. All amounts due under
this Section 10.04 shall be payable within ten Business Days after demand therefor. The
agreements in this Section shall survive the termination of the Commitments and repayment of all
other Obligations.

     Section 10.05 Indemnification. The Borrower shall indemnify the Administrative
Agent, each Lender and the Issuing Bank, and each Related Party

96

 

 of any of the foregoing Persons
(each such Person being called an “Indemnitee”) against, and hold each Indemnitee harmless
from, any and all liabilities, obligations, losses, damages, penalties, claims, demands, actions,
judgments, suits, costs, expenses, or disbursements (including all fees, expenses and disbursements
of any law firm or other external counsel and, without duplication, the allocated cost of internal
legal services and all expenses and disbursements of internal counsel) of any kind or nature
whatsoever which may be imposed on, incurred by, or asserted against any Indemnitee in any way
relating to or arising out of or in connection with (a) the execution, delivery, enforcement,
performance, or administration of this Agreement, any Loan Document, or any other agreement, letter
or instrument delivered in connection with the transactions contemplated thereby or the
consummation of the transactions contemplated thereby, (b) any Commitment, Advance or Letter of
Credit or the use or proposed use of the proceeds therefrom (including any refusal by the Issuing
Bank to honor a demand for payment under a Letter of Credit if the documents presented in
connection with such demand do not strictly comply with the terms of such Letter of Credit), (c)
any action taken or omitted by the Administrative Agent or the Issuing Bank under this Agreement or
any other Loan Document (including the Administrative Agent’s and the Issuing Bank’s own
negligence), (d) any actual or alleged presence or release of Hazardous Materials on or from any
property currently or formerly owned or operated by the Borrower, any Subsidiary or any other Loan
Party, or any Environmental Liability related in any way to the Borrower, any Subsidiary or any
other Loan Party, or (e) any actual or prospective claim, litigation, investigation or proceeding
relating to any of the foregoing, whether based on contract, tort or any other theory (including
any investigation of, preparation for, or defense of any pending or threatened claim,
investigation, litigation or proceeding) and regardless of whether any Indemnitee is a party
thereto (all the foregoing, collectively, the “Indemnified Liabilities”); provided
that such indemnity shall not, as to any Indemnitee, be available to the extent that such
liabilities, obligations, losses, damages, penalties, claims, demands, actions, judgments, suits,
costs, expenses or disbursements are determined by a court of competent jurisdiction by final and
nonappealable judgment to have resulted from the gross negligence or willful misconduct of such
Indemnitee. 

     To the fullest extent permitted by applicable law, no Loan Party shall assert, and hereby
waives, any claim against any Indemnitee, on any theory of liability, for special, indirect,
consequential or punitive damages (as opposed to direct or actual damages) arising out of, in
connection with, or as a result of, this Agreement, any other Loan Document or any agreement or
instrument contemplated hereby, the transactions contemplated hereby or thereby, any Loan or Letter
of Credit or the use of the proceeds thereof. No Indemnitee shall be liable for any damages
arising (other than through its gross negligence or wilful misconduct) from the use by unintended
recipients of any information or other materials distributed by it through telecommunications,
electronic or other information transmission systems in connection with this Agreement or the other
Loan Documents or the transactions contemplated hereby or thereby. 

97

 

     All amounts due under this Section 10.05 shall be payable within ten Business Days
after demand therefor. The agreements in this Section shall survive the resignation of the
Administrative Agent, the replacement of any Lender, the termination of the Commitments and the
repayment, satisfaction or discharge of all the other Obligations. 

     Section 10.06 Successors and Assigns.

     (a) Generally. The terms and provisions of this Agreement and the other Loan
Documents shall be binding upon and inure to the benefit of the parties hereto and their respective
successors and assigns permitted hereby, except that no Loan Party may assign or otherwise transfer
any of its rights or obligations hereunder without the prior written consent of each Lender and no
Lender may assign or otherwise transfer any of its rights or obligations hereunder except (i) to an
Eligible Assignee in accordance with the provisions of subsection (b) of this Section, (ii) by way
of participation in accordance with the provisions of subsection (d) of this Section, (iii) by way
of pledge or assignment of a security interest subject to the restrictions of subsection (f) or (i)
of this Section, or (iv) to an SPC in accordance with the provisions of subsection (h) of this
Section (and any other attempted assignment or transfer by any party hereto shall be null and
void). Nothing in this Agreement, expressed or implied, shall be construed to confer upon any
Person (other than the parties hereto, their respective successors and assigns permitted hereby,
Participants to the extent provided in subsection (d) of this Section and, to the extent expressly
contemplated hereby, the Indemnitees) any legal or equitable right, remedy or claim under or by
reason of this Agreement.

     (b) Assignments by Lenders. Any Lender may assign to one or more Eligible Assignees
all or any portion of its rights and obligations under this Agreement (including, without
limitation, all or a portion of its Commitments, the Revolving Advances owing to it, and
participations in Letter of Credit Obligations) at the time owing to it); provided,
however, that

     (i) except in the case of an assignment of the entire remaining amount of the assigning
Lender’s Revolving Commitment and the Revolving Advances owing to it or in the case of an
assignment to a Lender or an Affiliate of a Lender or an Approved Fund (as defined in
subsection (g) of this Section) with respect to a Lender, the aggregate
amount of the Revolving Commitments and Revolving Advances of such Lender being
assigned pursuant to each such assignment (determined as of the date of the Assignment and
Acceptance with respect to such assignment) shall not be less than $5,000,000.00;

     (ii) the parties to each such assignment shall execute and deliver to the
Administrative Agent, for its acceptance and recording in the Register, an Assignment and
Acceptance; and

     (iii) each Eligible Assignee (other than an Eligible Assignee that is a Lender or an
Affiliate of a Lender) shall pay to the Administrative Agent a $4,000 processing and
recording fee. Any such assignment need not be ratable as among the Facilities.

Upon such execution, delivery, acceptance and recording thereof by the Administrative Agent
pursuant to paragraph (c) of this Section, from and after the effective date specified in each

98

 

Assignment and Acceptance, (A) the Eligible Assignee thereunder shall be a party hereto for all
purposes and, to the extent that rights and obligations hereunder have been assigned to it pursuant
to such Assignment and Acceptance, have the rights and obligations of a Lender hereunder and (B)
such assigning Lender thereunder shall, to the extent that rights and obligations hereunder have
been assigned by it pursuant to such Assignment and Acceptance, relinquish its rights and be
released from its obligations under this Agreement (and, in the case of an Assignment and
Acceptance covering all or the remaining portion of such Lender’s rights and obligations under this
Agreement, such Lender shall cease to be a party hereto) but shall continue to be entitled to the
benefits of Sections 2.09, 2.11, 10.04 and 10.05 and is subject to
Section 2.09(e) and Section 2.15. with respect to facts and circumstances occurring
prior to the effective date of such assignment). Any assignment or transfer by a Lender of rights
or obligations under this Agreement that does not comply with this subsection shall be treated for
purposes of this Agreement as a sale by such Lender of a participation in such rights and
obligations in accordance with subsection (d) of this Section.

     (c) Register. The Administrative Agent shall maintain at its Applicable Lending
Office a copy of each Assignment and Acceptance delivered to and accepted by it and a register for
the recordation of the names and addresses of the Lenders and the Commitments of, and principal
amount of the Revolving Advances owing to, each Lender from time to time (the “Register”).
The entries in the Register shall be conclusive and binding for all purposes, absent manifest
error, and each of the Loan Parties, the Administrative Agent, the Issuing Bank, and the Lenders
may treat each Person whose name is recorded in the Register as a Lender hereunder for all purposes
of this Agreement. The Register shall be available for inspection by the Borrower or any Lender at
any reasonable time and from time to time upon reasonable prior notice.

     (d) Participations. Any Lender may at any time, without the consent of, or notice to,
the Borrower or the Administrative Agent, sell participations to any Person (other than a natural
person or the Borrower or any of the Borrower’s Affiliates or Subsidiaries) (each, a
“Participant”) in all or a portion of such Lender’s rights and/or obligations under this
Agreement (including all or a portion of its Commitment and/or the Revolving Advances (including
such Lender’s participations in Letter of Credit Obligations) owing to it); provided that
(i) such Lender’s obligations under this Agreement shall remain unchanged, (ii) such Lender shall
remain solely responsible to the other parties hereto for the performance of such obligations and
(iii) the
Borrower, the Administrative Agent and the other Lenders shall continue to deal solely and
directly with such Lender in connection with such Lender’s rights and obligations under this
Agreement. Any agreement or instrument pursuant to which a Lender sells such a participation shall
provide that such Lender shall retain the sole right to enforce this Agreement and to approve any
amendment, modification or waiver of any provision of this Agreement; provided that such
agreement or instrument may provide that such Lender will not, without the consent of the
Participant, agree to any amendment, waiver or other modification described in the first proviso to
Section 10.01 that directly affects such Participant. Subject to subsection (e) of this
Section, the Borrower agree that each Participant shall be entitled to the benefits of Sections
2.08, 2.09, 2.11, 10.04 and 10.05 and by becoming a Participant
agrees to be subject to Sections 2.09(e), 2.15 and 10.07 to the same extent
as if it were a Lender and had acquired its interest by assignment pursuant to subsection (b) of
this Section.

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     (e) A Participant shall not be entitled to receive any greater payment under Section
2.09 or 2.11 than the applicable Lender would have been entitled to receive with
respect to the participation sold to such Participant, unless the sale of the participation to such
Participant is made with the Borrower’ prior written consent. A Participant that would be a
Foreign Lender if it were a Lender shall not be entitled to the benefits of Section 2.11
unless the Borrower are notified of the participation sold to such Participant and such Participant
agrees, for the benefit of the Borrower, to comply with Section 2.11(e) as though it were a
Lender.

     (f) Any Lender may at any time pledge or assign a security interest in all or any portion of
its rights under this Agreement to secure obligations of such Lender, including any pledge or
assignment to secure obligations to a Federal Reserve Bank; provided that no such pledge or
assignment shall release such Lender from any of its obligations hereunder or substitute any such
pledgee or assignee for such Lender as a party hereto.

     (g) Notwithstanding anything to the contrary contained herein, any Lender (a “Granting
Lender”) may grant to a special purpose funding vehicle identified as such in writing from time
to time by the Granting Lender to the Administrative Agent and the Borrower (an “SPC”) the
option to provide all or any part of any Advance that such Granting Lender would otherwise be
obligated to make pursuant to this Agreement; provided that (i) nothing herein shall
constitute a commitment by any SPC to fund any Advance, and (ii) if a SPC elects not to exercise
such option or otherwise fails to make all or any part of such Advance, the Granting Lender shall
be obligated to make such Advance pursuant to the terms hereof. Each party hereto hereby agrees
that (i) neither the grant to any SPC nor the exercise by any SPC of such option shall increase the
costs or expenses or otherwise increase or change the obligations of the Borrower under this
Agreement, (ii) no SPC shall be liable for any indemnity or similar payment obligation under this
Agreement for which a Lender would be liable, and (iii) the Granting Lender shall for all purposes,
including the approval of any amendment, waiver or other modification of any provision of any Loan
Document, remain the lender of record hereunder. The making of a Revolving Advance by a SPC
hereunder shall utilize the Commitment of the Granting Lender to the same extent, and as if, such
Advance were made by such Granting Lender. In furtherance of the foregoing, each party hereto
hereby agrees (which agreement shall survive the termination of this Agreement) that, prior to the
date that is one year and one day after the payment in full of all outstanding commercial paper or
other senior debt of any SPC, it will not institute against, or join any other Person in
instituting against, such SPC any
bankruptcy, reorganization, arrangement, insolvency, or liquidation proceeding under the laws
of the United States or any State thereof. Notwithstanding anything to the contrary contained
herein, any SPC may (i) with notice to, but without prior consent of the Borrower and the
Administrative Agent and without paying any processing fee therefor, assign all or any portion of
its right to receive payment with respect to any Advance to the Granting Lender and (ii) disclose
on a confidential basis any non-public information relating to its funding of Revolving Advances to
any rating agency, commercial paper dealer or provider of any surety or Guarantee or credit or
liquidity enhancement to such SPC.

     (h) Notwithstanding anything to the contrary contained herein, any Lender that is a Fund may
create a security interest in all or any portion of the Revolving Advances owing to it and the
Note, if any, held by it to the trustee for holders of obligations owed, or securities issued, by
such Fund as security for such obligations or securities, provided that unless and until
such

100

 

trustee actually becomes a Lender in compliance with the other provisions of this Section
10.06, (i) no such pledge shall release the pledging Lender from any of its obligations under
the Loan Documents and (ii) such trustee shall not be entitled to exercise any of the rights of a
Lender under the Loan Documents even though such trustee may have acquired ownership rights with
respect to the pledged interest through foreclosure or otherwise.

     Section 10.07 Confidentiality. Each of the Administrative Agent and the Lenders
agrees to maintain the confidentiality of the Information (as defined below), except that
Information may be disclosed (a) to its and its Affiliates’ directors, officers, employees and
agents, including accountants, legal counsel and other advisors (it being understood that the
Persons to whom such disclosure is made will be informed of the confidential nature of such
Information and instructed to keep such Information confidential), (b) to the extent requested by
any regulatory authority (including any self-regulatory authority, such as the National Association
of Insurance Commissioners), (c) to the extent required by applicable laws or regulations or by any
subpoena or similar legal process, (d) to any other party hereto, (e) in connection with the
exercise of any remedies hereunder or under any other Loan Document or any action or proceeding
relating to this Agreement or any other Loan Document or the enforcement of rights hereunder or
thereunder, (f) subject to an agreement containing provisions substantially the same as those of
this Section, to (i) any assignee of or Participant in, or any prospective assignee of or
Participant in, any of its rights or obligations under this Agreement or (ii) any actual or
prospective counterparty (or its advisors) to any swap or derivative transaction relating to the
Borrower and its obligations, (g) with the prior written consent of the Borrower or (h) to the
extent such Information (x) becomes publicly available other than as a result of a breach of this
Section or (y) becomes available to the Administrative Agent or any Lender on a nonconfidential
basis from a source other than the Borrower. For purposes of this Section, “Information” means all
information received from any Loan Party relating to any Loan Party or any of their respective
businesses, other than any such information that is available to the Administrative Agent or any
Lender on a nonconfidential basis prior to disclosure by any Loan. Any Person required to maintain
the confidentiality of Information as provided in this Section shall be considered to have complied
with its obligation to do so if such Person has exercised the same degree of care to maintain the
confidentiality of such Information as such Person would accord to its own confidential
information. 

     Section 10.08 Execution in Counterparts. This Agreement may be executed in
any number of counterparts and by different parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken together shall constitute
one and the same agreement.

     Section 10.09 Survival of Representations, etc. All representations and warranties
made hereunder and in any other Loan Document or other document delivered pursuant hereto or
thereto or in connection herewith or therewith shall survive the execution and delivery hereof and
thereof. Such representations and warranties have been or will be relied upon by the
Administrative Agent and each Lender, regardless of any investigation made by the Administrative
Agent or any Lender or on their behalf and notwithstanding that the Administrative Agent or any
Lender may have had notice or knowledge of any Default at the time of any Advance, and shall
continue in full force and effect as long as any Advance or any other Obligation hereunder shall
remain unpaid or unsatisfied or any Letter of Credit shall remain outstanding.

101

 

     Section 10.10 Severability. If any provision of this Agreement or the other Loan
Documents is held to be illegal, invalid or unenforceable, (a) the legality, validity and
enforceability of the remaining provisions of this Agreement and the other Loan Documents shall not
be affected or impaired thereby and (b) the parties shall endeavor in good faith negotiations to
replace the illegal, invalid or unenforceable provisions with valid provisions the economic effect
of which comes as close as possible to that of the illegal, invalid or unenforceable provisions.
The invalidity of a provision in a particular jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

     Section 10.11 Interest Rate Limitation. Notwithstanding anything to the contrary
contained in any Loan Document, the interest paid or agreed to be paid under the Loan Documents
shall not exceed the maximum rate of non-usurious interest permitted by applicable Law (the
“Maximum Rate”). If the Administrative Agent or any Lender shall receive interest in an
amount that exceeds the Maximum Rate, the excess interest shall be applied to the principal of the
Revolving Advances or, if it exceeds such unpaid principal, refunded to the Borrower. In
determining whether the interest contracted for, charged, or received by the Administrative Agent
or a Lender exceeds the Maximum Rate, such Person may, to the extent permitted by applicable Law,
(a) characterize any payment that is not principal as an expense, fee, or premium rather than
interest, (b) exclude voluntary prepayments and the effects thereof, and (c) amortize, prorate,
allocate, and spread in equal or unequal parts the total amount of interest throughout the
contemplated term of the Obligations hereunder.

     Section 10.12 Governing Law. This Agreement and each of the other Loan Documents
shall be governed by and construed in accordance with the laws of the State of New York and the
applicable laws of the United States of America.

     Section 10.13 Submission to Jurisdiction.

     (a) Any legal action or proceeding with respect to this Agreement or any other
Loan Document may be brought in the courts of the state of New York sitting in New York City or of
the United States for the Eastern District of such state, and by execution and delivery of this
Agreement, the Borrower, the Administrative Agent and each Lender consents, for itself and in
respect of its Property, to the non-exclusive jurisdiction of those courts. The Borrower, the
Administrative Agent and each Lender irrevocably waives any objection, including any objection to
the laying of venue or based on the grounds of forum non conveniens, which it may now or hereafter
have to the bringing of any action or proceeding in such jurisdiction in respect of any Loan
Document or other document related thereto. The Borrower, the Administrative Agent and each Lender
waives personal service of any summons, complaint or other process, which may be made by any other
means permitted by the law of such state.

     (b) Each Loan Party has irrevocably appointed The Corporation Trust Company (the “Process
Agent”), with an office on the date hereof at 111 Eighth Ave., New York, New York, 10011, as
its agent to receive on its behalf and on behalf of its property service of copies of any summons
or complaint or any other process which may be served in any action. Such service may be made by
mailing or delivering a copy of such process to such Loan Party in care of the

102

 

Process Agent at the
Process Agent’s above address, and each Loan Party hereby irrevocably authorizes and directs the
Process Agent to accept such service on its behalf. As an alternative method of service, each Loan
Party also irrevocably consents to the service of any and all process in any such action or
proceeding by the mailing of copies of such process to it at the address specified for it on the
signature pages of this Agreement.

     (c) Nothing in this Section 10.13 shall affect the right of any the Administrative
Agent or any other Lender to serve legal process in any other manner permitted by law or affect the
right of the Administrative Agent or any Lender to bring any action or proceeding against any Loan
Party (as the Borrower or as a Guarantor) in the courts of any other jurisdiction.

     Section 10.14 Waiver of Jury. Each party to this Agreement
hereby expressly and irrevocably waives any right to trial by jury of any claim, demand, action or
cause of action arising under any Loan Document or in any way connected with or related or
incidental to the dealings of the parties hereto or any of them with respect to any Loan Document,
or the transactions related thereto, in each case whether now existing or hereafter arising, and
whether founded in contract or tort or otherwise; and each party hereby agrees and consents that
any such claim, demand, action or cause of action shall be decided by court trial without a jury,
and that any party to this Agreement may file an original counterpart or a copy of this section
with any court as written evidence of the consent of the signatories hereto to the waiver of their
right to trial by jury.

     Section 10.15 Entire agreement. This Agreement and the other Loan
Documents represent the final agreement among the parties and may not be contradicted by evidence
of prior, 
contemporaneous, or subsequent oral agreements of the parties. There are no unwritten
oral agreements among the parties. 

103

 

     EXECUTED as of the date first above written.

	 	 	 	 	 
	 	BORROWER:

BRONCO DRILLING COMPANY, INC.

 	 
	 	By:  	/s/ ZACHARY M. GRAVES
 	 
	 	 	 	Zachary M. Graves 	 
	 	 	 	Chief Financial Officer, Secretary and

Treasurer 	 
	 
	 	GUARANTORS:

BRONCO EXPLORATION AND PRODUCTION LLC

 	 
	 	By:  	/s/ ZACHARY M. GRAVES
 	 
	 	 	 	Zachary M. Graves 	 
	 	 	 	Manager 	 
	 

BRONCO MENA INVESTMENTS LLC

BRONCO MENA SERVICES LLC

BRONCO MENA MANAGEMENT LLC

HAYS TRUCKING, INC.

MID-STATES OILFIELD MACHINE, LLC

SADDLEBACK DRILLING, LLC

SADLEBACK PROPERTIES, LLC

WRANGLER EQUIPMENT, LLC

	 	 	 	 	 
	 	 	 
	 	By:  	     /s/ ZACHARY M. GRAVES
 	 
	 	 	 	Zachary M. Graves 	 
	 	 	 	Chief Financial Officer 	 
	 
	 	ELK HILL DRILLING, INC.

 	 
	 	By:  	/s/ ZACHARY M. GRAVES
 	 
	 	 	 	Zachary M. Graves 	 
	 	 	 	Secretary 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	EAGLE WELL SERVICE, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ KIM SNELL
 

Kim Snell
	 	 
	 

	 	Title:
	 	President	 	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	ADMINISTRATIVE AGENT:

FORTIS BANK SA/NV, NEW YORK BRANCH,

as Administrative Agent

 	 
	 	By:  	/s/ JOHN G. SULLIVAN
 	 
	 	 	 	John G. Sullivan 	 
	 	 	 	Managing Director 	 
	 
	 	 	 
	 	By:  	     /s/ SVEIN ENGH
 	 
	 	 	 	Svein Engh 	 
	 	 	 	Managing Director 	 
	 
	 	LENDERS:

FORTIS BANK SA/NV, NEW YORK BRANCH

 	 
	 	By:  	/s/ JOHN G. SULLIVAN
 	 
	 	 	 	John G. Sullivan 	 
	 	 	 	Managing Director 	 
	 
	 	 	 
	 	By:  	     /s/ SVEIN ENGH
 	 
	 	 	 	Svein Engh 	 
	 	 	 	Managing Director 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	THE ROYAL BANK OF SCOTLAND PLC

 	 
	 	By:  	/s/ DAVID SLYE
 	 
	 	 	 	David Slye 	 
	 	 	 	Senior Vice President 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	THE CIT GROUP/BUSINESS CREDIT, INC.

 	 
	 	By:  	/s/ BARBARA J. COFFIN
 	 
	 	 	 	Barbara J. Coffin 	 
	 	 	 	Assistant Vice President 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	CATERPILLAR FINANCIAL SERVICES CORPORATION

 	 
	 	By:  	/s/ ROGER SCOTT FREISTAT
 	 
	 	 	 	Roger Scott Freistat 	 
	 	 	 	Credit Manager 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	THE PRUDENTIAL INSURANCE COMPANY OF AMERICA

 	 
	 	By:  	/s/ HEIDI L. S. CLEVENGER
 	 
	 	 	 	Heidi L. S. Clevenger 	 
	 	 	 	Vice President 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	LEGACY BANK

 	 
	 	By:  	/s/ BARRY BURGET
 	 
	 	 	 	Barry Burget 	 
	 	 	 	Senior Vice President 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

 

 

	 	 	 	 	 
	 	NATIXIS

 	 
	 	By:  	/s/ CARLOS QUINTEROS
 	 
	 	 	 	Carlos Quinteros 	 
	 	 	 	Director 	 
	 
	 	 	 
	 	By:  	     /s/ LOUIS P. LAVILLE, III
 	 
	 	 	 	Louis P. Laville, III 	 
	 	 	 	Managing Director 	 
	 

Signature Page to Credit Agreement

Bronco Drilling Company, Inc.

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