Document:

exv4w1

Exhibit 4.1

TRUST AGREEMENT

OF

ECA MARCELLUS TRUST I

     This Trust Agreement of ECA Marcellus Trust I is entered into effective as of the 19th day of
March, 2010 (this “Trust Agreement”), by and among Energy Corporation of America, a West
Virginia corporation with its principal office in Charleston, West Virginia (together with its
successors and assigns, “ECA”) as trustor, and THE CORPORATION TRUST COMPANY, a corporation
organized under the laws of the State of Delaware with its principal office in Wilmington, Delaware
(“Corporation Trust”), and Michael Fletcher, a natural person residing in the state of
Colorado (the “Trustee”), as trustees (collectively referred to herein as the
“Trustees”). ECA and the Trustees hereby agree as follows:

     1. The trust created hereby shall be known as “ECA Marcellus Trust I” (the “Trust”),
in which name the Trustees or ECA, to the extent provided herein, may conduct the business of the
Trust, make and execute contracts, and sue and be sued.

     2. ECA hereby assigns, transfers, conveys and sets over to the Trust the sum of $10. Such
amount shall constitute the initial trust estate. It is the intention of the parties hereto that
the Trust created hereby constitutes a statutory trust under the Delaware Statutory Trust Act,
Title 12, Chapter 38 of the Delaware Code, Sections 3801, et seq. (the “Trust Act”), and
that this Trust Agreement constitutes the governing instrument of the Trust. The Trustees are
hereby authorized and directed to execute and file a certificate of trust with the Secretary of
State of the State of Delaware in such form as the Trustees may approve.

     3. ECA and the Trustees will enter into an amended and restated Trust Agreement satisfactory
to each such party to provide for the contemplated operation of the Trust created hereby and the
issuance of the trust securities referred to therein. Prior to the execution and delivery of such
amended and restated Trust Agreement, the Trustees shall not have any duty or obligation hereunder
or with respect of the trust estate, except as otherwise contemplated by this Trust Agreement,
required by applicable law or as may be necessary to obtain prior to such execution and delivery
any licenses, consents or approvals required by applicable law or otherwise. Notwithstanding the
foregoing, the Trustees may take all actions deemed proper as are necessary to effect the
transactions contemplated herein.

     4. ECA, as trustor of the Trust, is hereby authorized, in its sole discretion, (i) to prepare
and file with the Securities and Exchange Commission (the “Commission”) and to execute, in
the case of the 1933 Act Registration Statement and 1934 Act Registration Statement (as herein
defined), on behalf of the Trust, (a) a Registration Statement (the “1933 Act Registration
Statement”), including all pre-effective and post-effective amendments thereto, relating to the
registration under the Securities Act of 1933, as amended (the “1933 Act”), of the trust
securities of the Trust, (b) any preliminary prospectus or prospectus or supplement thereto
relating to the trust securities of the Trust required to be filed pursuant to the 1933 Act, and
(c) a Registration Statement on Form 8-A or other appropriate form (the “1934 Act Registration
Statement”), including all pre-effective and post-effective amendments thereto, relating to the
registration of the trust securities of the Trust under the Securities Exchange Act of 1934, as

 

 

amended; (ii) if and at such time as determined by ECA, to file with the New York Stock
Exchange or other exchange, or the Financial Industry Regulatory Authority, Inc. (“FINRA”),
and execute on behalf of the Trust a listing application and all other applications, statements,
certificates, agreements and other instruments as shall be necessary or desirable to cause the
trust securities of the Trust to be listed on the New York Stock Exchange or such other exchange,
or the NASDAQ Global Market; (iii) to file and execute on behalf of the Trust, such applications,
reports, surety bonds, irrevocable consents, appointments of attorney for service of process and
other papers and documents that shall be necessary or desirable to register the trust securities of
the Trust under the securities or “blue sky” laws of such jurisdictions as ECA, on behalf of the
Trust, may deem necessary or desirable; (iv) to execute and deliver letters or documents to, or
instruments for filing with, a depository relating to the trust securities of the Trust; and (v) to
execute, deliver and perform on behalf of the Trust an underwriting agreement with one or more
underwriters relating to the offering of the trust securities of the Trust.

     In the event that any filing referred to in this Section 4 is required by the rules and
regulations of the Commission, the New York Stock Exchange or other exchange, FINRA, or state
securities or “blue sky” laws to be executed on behalf of the Trust by the Trustees, the Trustees,
in their capacity as trustees of the Trust, are hereby authorized to join in any such filing and to
execute on behalf of the Trust any and all of the foregoing, it being understood that the Trustees,
in their capacity as trustees of the Trust, shall not be required to join in any such filing or
execute on behalf of the Trust any such document unless required by the rules and regulations of
the Commission, the New York Stock Exchange or other exchange, FINRA, or state securities or “blue
sky” laws; provided, however, that the Trustees in their discretion may resign if they elect not to
join in any such filing or to execute any such document.

     5. This Trust Agreement may be executed in one or more counterparts.

     6. The number of trustees of the Trust initially shall be two and thereafter the number of
trustees of the Trust shall be such number as shall be fixed from time to time by a written
instrument signed by ECA which may increase or decrease the number of trustees of the Trust;
provided, however, that to the extent required by the Trust Act, one trustee of the Trust shall
either be a natural person who is a resident of the State of Delaware or, if not a natural person,
an entity that has its principal place of business in the State of Delaware and otherwise meets the
requirements of applicable law. Subject to the foregoing, ECA is entitled to appoint or remove
without cause any trustee of the Trust at any time. Any trustee of the Trust may resign upon thirty
days’ prior notice to ECA. In the event of the removal or resignation of Corporation Trust where a
successor trustee meeting the requirements of the Trust Act is required, if no such successor
trustee shall have been appointed within thirty (30) days after notice of such removal or
resignation has been given, Corporation Trust may, after delivery of written notice to ECA and at
the expense of ECA, petition a court of competent jurisdiction for the appointment of a successor.

     7. Notwithstanding any provision of this Trust Agreement to the contrary, Corporation Trust
shall not have any of the powers or duties of the Trustees set forth herein and shall be a Trustee
of the Trust for the sole purpose of satisfying the requirements of Section 3807 of the Trust Act.

2

 

     8. The Trustees (as such and in their individual capacities) and their respective officers,
directors, employees, shareholders and agents shall be indemnified and held harmless by ECA with
respect to any loss, liability, claim, damage, action, suit, tax, penalty, cost, disbursement or
expense of any kind or nature whatsoever (including the reasonable fees and expenses of counsel)
incurred by the Trustees (as such and in their individual capacities) arising out of or incurred in
connection with the acceptance or performance by the Trustees of their respective duties and
obligations contained in this Trust Agreement, the creation, operation, administration or
termination of the Trust or the transactions contemplated hereby; provided, however, that the
Trustees (including their respective officers, directors, employees, shareholders and agents) shall
not be indemnified or held harmless as to any such loss, liability, claim, damage, action, suit,
tax, penalty, cost, disbursement or expense of any kind or nature whatsoever (including the
reasonable fees and expenses of counsel) incurred by reason of their respective willful misconduct,
bad faith or gross negligence. The obligations of ECA under this Section 8 shall survive the
resignation or removal of the Trustees and the termination of this Trust Agreement.

     9. The Trust may be dissolved and terminated before the issuance of the trust securities of
the Trust at the election of ECA.

     10. This Trust Agreement shall be governed by, and construed in accordance with, the laws of
the State of Delaware (without regard to conflict of laws principles); PROVIDED, HOWEVER, THAT
THERE SHALL NOT BE APPLICABLE TO THE PARTIES HEREUNDER OR THIS AGREEMENT ANY PROVISION OF THE LAWS
(COMMON OR STATUTORY) OF THE STATE OF DELAWARE PERTAINING TO TRUSTS THAT RELATE TO OR REGULATE, IN
A MANNER INCONSISTENT WITH THE TERMS HEREOF, (A) THE FILING WITH ANY COURT OR GOVERNMENTAL BODY OR
AGENCY OF TRUSTEE ACCOUNTS OR SCHEDULES OF TRUSTEE FEES AND CHARGES, (B) AFFIRMATIVE REQUIREMENTS
TO POST BONDS FOR TRUSTEES, OFFICERS, AGENTS OR EMPLOYEES OF A TRUST, (C) THE NECESSITY FOR
OBTAINING COURT OR OTHER GOVERNMENTAL APPROVAL CONCERNING THE ACQUISITION, HOLDING OR DISPOSITION
OF REAL OR PERSONAL PROPERTY, (D) FEES OR OTHER SUMS PAYABLE TO TRUSTEES, OFFICERS, AGENTS OR
EMPLOYEES OF A TRUST, (E) THE ALLOCATION OF RECEIPTS AND EXPENDITURES TO INCOME OR PRINCIPAL,
(F) RESTRICTIONS OR LIMITATIONS ON THE PERMISSIBLE NATURE, AMOUNT OR CONCENTRATION OF TRUST
INVESTMENTS OR REQUIREMENTS RELATING TO THE TITLING, STORAGE OR OTHER MANNER OF HOLDING OR
INVESTING TRUST ASSETS OR (G) THE ESTABLISHMENT OF FIDUCIARY OR OTHER STANDARDS OF RESPONSIBILITY
OR LIMITATIONS ON THE ACTS OR POWERS OF TRUSTEES THAT ARE INCONSISTENT WITH THE LIMITATIONS OR
AUTHORITIES AND POWERS OF THE TRUSTEES HEREUNDER AS SET FORTH OR REFERENCED IN THIS AGREEMENT.
SECTION 3540 OF TITLE 12 OF THE DELAWARE CODE SHALL NOT APPLY TO THE TRUST.

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     IN WITNESS WHEREOF, ECA, the Trustee and Corporation Trust have caused this Agreement to be
duly executed the day and year first above written.

	 	 	 	 	 
	 	 	ENERGY CORPORATION OF AMERICA
	ATTEST:
	 	 	 	 
	 
	 	 	 	 
	/s/ JULIE
ANN KITANO

	 	By:	 	/s/ JOHN MORK
	
 	 	 	 	 
	Name: Julie
Ann Kitano

	 	 	 	Name: John Mork
	Title: Assistant
Secretary

	 	 	 	Title: CEO
	 
	 	 	 	 
	 	 	ACTING TRUSTEE
	ATTEST:
	 	 	 	 
	 
	 	 	 	 
	/s/ JULIE
ANN KITANO

	 	By:	 	/s/ MICHAEL FLETCHER
	 

	 	 	 	 
	Name: Julie
Ann Kitano

	 	 	 	Michael Fletcher
	Title: Assistant
Secretary
	 	 	 	 
	 
	 	 	 	 
	 	 	CORPORATION TRUST COMPANY
	ATTEST:
	 	 	 	 
	 
	 	 	 	 
	/s/ VICTOR
A. DOUG

	 	By:	 	/s/ JENNIFER A. SCHWARTZ
	 

	 	 	 	 
	Name: Victor
A. Doug

	 	 	 	Name: Jennifer A. Schwartz
	Title: The
Corporation Trust Company

	 	 	 	Title: Assistant Vice President

4exv10w1

Exhibit 10.1

SECOND AMENDED AND RESTATED CREDIT AGREEMENT

by and among

ENERGY CORPORATION OF AMERICA,

a West Virginia corporation

as Borrower,

THE LENDERS THAT ARE SIGNATORIES HERETO

as the Lenders,

and

WELLS FARGO FOOTHILL, INC.

as the Arranger and Administrative Agent

Dated as of September 7, 2007

 

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 
	1.	 	DEFINITIONS AND CONSTRUCTION
	 	 	1	 
	2.	 	LOAN AND TERMS OF PAYMENT
	 	 	27	 
	3.	 	CONDITIONS; TERMS OF AGREEMENT
	 	 	50	 
	4.	 	INTENTIONALLY DELETED
	 	 	54	 
	5.	 	REPRESENTATIONS AND WARRANTIES
	 	 	54	 
	6.	 	AFFIRMATIVE COVENANTS
	 	 	60	 
	7.	 	NEGATIVE COVENANTS
	 	 	70	 
	8.	 	EVENTS OF DEFAULT
	 	 	76	 
	9.	 	THE LENDER GROUP’S RIGHTS AND REMEDIES
	 	 	77	 
	10.	 	TAXES AND EXPENSES
	 	 	78	 
	11.	 	WAIVERS; INDEMNIFICATION
	 	 	79	 
	12.	 	NOTICES
	 	 	80	 
	13.	 	CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER
	 	 	81	 
	14.	 	ASSIGNMENTS AND PARTICIPATIONS; SUCCESSORS
	 	 	81	 
	15.	 	AMENDMENTS; WAIVERS
	 	 	84	 
	16.	 	AGENT; THE LENDER GROUP
	 	 	85	 
	17.	 	GENERAL PROVISIONS
	 	 	94	 

i

 

EXHIBITS AND SCHEDULES

	 	 	 
	Exhibit A-1

	 	Form of Assignment and Acceptance
	Exhibit C-1

	 	Form of Compliance Certificate
	Exhibit L-1

	 	Form of LIBOR Notice
	 
	 	 
	Schedule C-1

	 	Commitments
	Schedule D-1

	 	Designated Account
	Schedule P-1

	 	Partnerships
	Schedule 2.7(a)

	 	Cash Management Banks
	Schedule 5.1(a)

	 	Borrowing Base Properties
	Schedule 5.1(b)

	 	Material Contracts
	Schedule 5.7

	 	Chief Executive Office; FEIN
	Schedule 5.8(b)

	 	Capitalization of Borrower
	Schedule 5.8(c)

	 	Capitalization of Borrower’s Subsidiaries
	Schedule 5.10

	 	Litigation
	Schedule 5.14

	 	Environmental Matters
	Schedule 5.16

	 	Intellectual Property
	Schedule 5.18

	 	Demand Deposit Accounts
	Schedule 5.20

	 	Permitted Indebtedness
	Schedule 5.22

	 	Taxes
	Schedule 5.23

	 	Insurance
	Schedule 5.25

	 	Claims and Liabilities
	Schedule 5.26(b)

	 	Cumulative Imbalances in Gas Production
and “Take or Pay” Payments
	Schedule 5.27

	 	Operations of Borrowing Base Properties
	Schedule 5.28

	 	Hedging Agreements
	Schedule 6.2(c)

	 	Total Value of Total Proved Developed Producing Preserves
	Schedule 7.2

	 	Liens
	Schedule 7.13

	 	Existing Investments

ii

 

SECOND AMENDED AND RESTATED CREDIT AGREEMENT

     THIS SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Agreement”), is entered into as of
September 7, 2007, between and among, on the one hand, the lenders identified on the signature
pages hereof (such lenders, together with their respective successors and assigns, are referred to
hereinafter each individually as a “Lender” and collectively as the “Lenders”), WELLS FARGO
FOOTHILL, INC., a California corporation, as the arranger and administrative agent for the Lenders
(“Agent”), and, on the other hand, ENERGY CORPORATION OF AMERICA, a West Virginia corporation
(“Borrower”).

RECITALS

     A. Borrower and Agent (formerly known as Foothill Capital Corporation) and certain lenders
identified therein are party to that certain Credit Agreement dated as of July 10, 2002 (as the
same has been amended, modified or supplemented, the “Original Credit Agreement”) pursuant to which
Agent and Lenders extended Borrower a revolving credit facility of up to $50,000,000.00.

     B. Borrower and Agent and certain lenders identified therein are party to that certain Amended
and Restated Credit Agreement dated as of June 10, 2004 which extended the revolving credit
facility and provided additional credit to Borrower in the form of a single advance term loan in
the principal amount of $50,000,000.00 thereby increasing the Total Commitment of the Lender Group
from $50,000,000.00 to $100,000,000.00 (together with the Original Credit Agreement, the “Amended
and Restated Credit Agreement”).

     C. Borrower and Agent and certain lenders identified therein further amended the Amended and
Restated Credit Agreement pursuant to the terms of that certain First Amendment dated September 3,
2004, that certain Second Amendment dated June 20, 2005, that certain Third Amendment dated June
29, 2005, that certain Fourth Amendment dated August 16, 2005, that certain Fifth Amendment dated
October 5, 2005, that certain Sixth Amendment dated November 18, 2005, that certain Seventh
Amendment dated August 24, 2006 (which amendment, among other things, extended the Maturity Date to
July 10, 2011, and increased the Maximum Revolver Amount to $75,000,000.00 and the Term Loan Amount
to $75,000,000.00 thereby increasing the Maximum Loan Amount to $150,000,000.00), that certain
Letter Agreement dated effective as of November 17, 2006, and that certain Letter Agreement dated
April 6, 2007 (collectively with the Amended and Restated Credit Agreement, the “Existing Credit
Agreement”).

     D. Borrower has requested an increase in the Maximum Loan Amount to $200,000,000.00,
consisting of a Maximum Revolver Amount of up to $100,000,000.00 and a Term Loan Amount of up to
$100,000,000.00.

     E. As a result of the foregoing, and in consideration of the premises herein contained and
other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties, intending to be legally bound, hereby agree to amend and restate the
Existing Credit Agreement to read in its entirety as follows:

	1.	 	DEFINITIONS AND CONSTRUCTION.

     1.1. Definitions. As used in this Agreement, the following terms shall have the
following definitions:

     “A&W” means Allegheny & Western Energy Corporation, a West Virginia corporation.

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     “Account Debtor” means any Person who is or who may become obligated under, with respect to,
or on account of, an Account.

     “Accounts” means all currently existing and hereafter arising accounts, contract rights, and
all other forms of obligations owing to Borrower or any of its Subsidiaries, arising from its
partnership interests or other interests in the Partnerships or from its membership interests or
other interests in the LLC or out of the sale or lease of goods, Hydrocarbons, or Oil and Gas
Properties or the rendition of services by Borrower or any of its Subsidiaries, irrespective of
whether earned by performance, and any and all credit insurance, guaranties or security therefor.

     “ACH Transactions” means any cash management or related services (including the Automated
Clearing House processing of electronic funds transfers through the direct Federal Reserve Fedline
system) provided by Wells Fargo or its Affiliates for the account of Borrower or its Subsidiaries.

     “Additional Term Loan” means the term loan in the principal amount equal to the Additional
Term Loan Amount made by Lenders to Borrower pursuant to Section 2.2 of this Agreement.

     “Additional Term Loan Amount” means $25,000,000.00.

     “Advances” has the meaning set forth in Section 2.1(a).

     “Affiliate” means, as applied to any Person, any other Person who, directly or indirectly,
controls, is controlled by, or is under common control with, such Person. For purposes of this
definition, “control” means the possession, directly or indirectly, of the power to direct the
management and policies of a Person, whether through the ownership of Stock, by contract, or
otherwise; provided, however, that, in any event, (a) any Person which owns
directly or indirectly 11.5% or more of the securities having ordinary voting power for the
election of directors or other members of the governing body of a Person or 11.5% or more of the
partnership or other ownership interests of a Person (other than as a limited partner of such
Person) shall be deemed to control such Person; (b) each director (or comparable manager) of a
Person shall be deemed to be an Affiliate of such Person; and (c) each partnership or joint venture
in which a Person is a partner or joint venturer shall be deemed to be an Affiliate of such Person.

     “Agent” means Foothill, solely in its capacity as agent for the Lenders hereunder, and any
successor thereto.

     “Agent’s Account” means an account at a bank designated by Agent from time to time as the
account into which Borrower shall make all payments to Agent for the benefit of the Lender Group
and into which the Lender Group shall make all payments to Agent under this Agreement and the other
Loan Documents; unless and until Agent notifies Borrower and the Lender Group to the contrary,
Agent’s Account shall be that certain deposit account bearing account number 323-266193 and
maintained by Agent with JPMorgan Chase Bank, 4 New York Plaza, 15th Floor, New York, New York
10004, ABA #021000021.

     “Agent Advances” has the meaning set forth in Section 2.3(e)(i).

     “Agent’s Liens” means the Liens granted by Borrower and its Subsidiaries to Agent for the
benefit of the Lender Group under the Loan Documents.

     “Agent-Related Persons” means Agent together with its Affiliates, officers, directors,
employees, and agents.

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     “Agreement” has the meaning set forth in the preamble hereto.

     “Applicable Margin” means, on any day, and with respect to any Obligation, the applicable per
annum percentage set forth in the table shown below, based on the average monthly Revolver Usage
for the immediately preceding month:

	 	 	 	 	 
	Average Monthly
Revolver Usage	 	Base Rate
 Loans	 	LIBOR Rate 
Loans
	$0 to $40,000,000.00

	 	Less 0.25%
	 	Plus 1.50%
	$40,000,000.01 to $75,000,000.00

	 	Plus 0.00%
	 	Plus 1.75%
	Greater than $75,000,000.00

	 	Plus 0.25%
	 	Plus 2.00%

     “Applicable Prepayment Premium” means, as of any date of determination, an amount equal to (a)
during the period of time from and including July 11, 2007 up to and including July 10, 2008, 1%
times the Maximum Loan Amount, (b) during the period of time from and including July 11, 2008 up to
and including July 10, 2009, 0.5% times the Maximum Loan Amount, and (c) during the period of time
from and including July 11, 2009 up to July 10, 2012, 0.25% times the Maximum Loan Amount.

     “Approved Engineer” means Ryder Scott Company Petroleum Consultants or any other independent
petroleum engineer satisfactory to Lender.

     “Assignee” has the meaning set forth in Section 14.1(a).

     “Assignment and Acceptance” means an Assignment and Acceptance Agreement substantially in the
form of Exhibit A-1.

     “Authorized Person” means any officer or other employee of Borrower.

     “Availability” means, as of any date of determination, if such date is a Business Day, and
determined at the close of business on the immediately preceding Business Day, if such date of
determination is not a Business Day, the amount that Borrower is entitled to borrow as Advances
under Section 2.1 (after giving effect to all then outstanding Obligations (other than Bank
Products Obligations) and all sublimits and reserves applicable hereunder).

     “Bank Product” means any financial accommodation extended to Borrower or its Subsidiaries by a
Bank Product Provider (other than pursuant to this Agreement) including: (a) credit cards, (b)
credit card processing services, (c) debit cards, (d) purchase cards, (e) ACH Transactions, (f)
cash management, including controlled disbursement, accounts or services, or (g) transactions under
Hedge Agreements.

     “Bank Product Agreements” means the Hedging Agreements and cash management service agreements
entered into from time to time by Borrower, its Subsidiaries, the Partnerships, and the LLC with a
Bank Product Provider in connection with the obtaining of any of the Bank Products.

     “Bank Product Obligations” means all obligations, liabilities, contingent reimbursement
obligations, fees, and expenses owing by Borrower, its Subsidiaries, the Partnerships, and the LLC
to any Bank Product Provider pursuant to or evidenced by the Bank Product Agreements and
irrespective of whether for the payment of money, whether direct or indirect, absolute or
contingent, due or to become due, now existing or hereafter arising, and including all such amounts
that Borrower or any Subsidiary is obligated to reimburse to Agent or any member of the Lender
Group as a result of Agent or such member of the Lender Group purchasing participations from, or
executing indemnities or reimbursement

-3-

 

obligations to, a Bank Product Provider with respect to the Bank Products provided by such
Bank Product Provider to Borrower or its Subsidiaries pursuant to the Bank Product Agreements.

     “Bank Product Provider” means Wells Fargo or any of its Affiliates, and, with respect to
Hedging Agreements between Borrower and Bank of America, N.A., if, and only to the extent, Agent
has timely received such information in writing in connection therewith from Bank of America, N.A.
as Agent may, from time to time, request, Bank of America, N.A.

     “Bank Product Reserves” means, as of any date of determination, the amount of reserves that
Agent has established (based upon the Bank Product Provider’s reasonable determination of the
credit exposure of Borrower and its Subsidiaries in respect of then extant Bank Products) in
respect of Bank Products then provided or outstanding.

     “Bankruptcy Code” means Title 11 of the United States Code, as in effect from time to time.

     “Base LIBOR Rate” means the rate per annum, determined by Agent in accordance with its
customary procedures, and utilizing such electronic or other quotation sources as it considers
appropriate (rounded upwards, if necessary, to the next 1/100%), to be the rate at which Dollar
deposits (for delivery on the first day of the requested Interest Period) are offered to major
banks in the London interbank market 2 Business Days prior to the commencement of the requested
Interest Period, for a term and in an amount comparable to the Interest Period and the amount of
the LIBOR Rate Loan requested (whether as an initial LIBOR Rate Loan or as a continuation of a
LIBOR Rate Loan or as a conversion of a Base Rate Loan to a LIBOR Rate Loan) by Borrower in
accordance with this Agreement, which determination shall be conclusive in the absence of manifest
error.

     “Base Rate” means, the rate of interest announced, from time to time, within Wells Fargo at
its principal office in San Francisco as its “prime rate”, with the understanding that the “prime
rate” is one of Wells Fargo’s base rates (not necessarily the lowest of such rates) and serves as
the basis upon which effective rates of interest are calculated for those loans making reference
thereto and is evidenced by the recording thereof after its announcement in such internal
publication or publications as Wells Fargo may designate.

     “Base Rate Loan” means the portion of the Advances or the Term Loan that bears interest at a
rate determined by reference to the Base Rate.

     “Basis Differential” means, in the case of any Borrowing Base Properties, the difference
between the NYMEX futures contract prices and the sales prices at the delivery point where the oil
and gas, as the case may be, produced by such Borrowing Base Property is sold.

     “Benefit Plan” means a “defined benefit plan” (as defined in Section 3(35) of ERISA)
for which Borrower or any Subsidiary or ERISA Affiliate of Borrower has been an “employer” (as
defined in Section 3(5) of ERISA) within the past six years.

     “Board of Directors” means the board of directors (or comparable managers) of Borrower or any
committee thereof duly authorized to act on behalf of the board of directors (or comparable
managers).

     “Book Net Worth” means, as of any date of determination, all amounts which, in conformity with
GAAP, would be included as shareholder equity on a consolidated balance sheet of Borrower and its
Subsidiaries.

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     “Books” means all of Borrower’s and its Subsidiaries’ now owned or hereafter acquired books
and records (including all of their Records indicating, summarizing, or evidencing their assets
(including the Collateral) or liabilities, all of Borrower’s and its Subsidiaries’ Records relating
to its or their business operations or financial condition, and all of its and their goods or
general intangibles related to such information).

     “Borrower” has the meaning set forth in the preamble to this Agreement.

     “Borrower’s Security Agreement” means the Second Amended and Restated Security Agreement dated
of even date herewith executed by Borrower assigning to Agent, and granting Agent a security
interest in, the Intercompany Notes, in form, scope, and substance acceptable to Agent.

     “Borrowing” means a borrowing hereunder consisting of Advances (or term loans, in the case of
the Term Loan) made on the same day by the Lenders (or Agent on behalf thereof), or by Swing Lender
in the case of a Swing Loan, or by Agent in the case of an Agent Advance.

     “Borrowing Base” has the meaning set forth in Section 2.1(a).

     “Borrowing Base Properties” means the Mortgaged Properties and the Oil and Gas Properties of
the Partnerships and the LLC, including, without limitation, the Oil and Gas Properties set forth
on Schedule 5.1(a).

     “Business Day” means any day that is not a Saturday, Sunday, or other day on which national
banks are authorized or required to close in the state of Georgia, except that, if a determination
of a Business Day shall relate to a LIBOR Rate Loan, the term “Business Day” also shall exclude any
day on which banks are closed for dealings in Dollar deposits in the London interbank market.

     “Capital Expenditures” means, with respect to any Person for any period, the aggregate of all
expenditures by such Person and its Subsidiaries during such period that are capital expenditures
as determined in accordance with GAAP, whether such expenditures are paid in cash or financed.

     “Capital Lease” means a lease that is required to be capitalized for financial reporting
purposes in accordance with GAAP.

     “Capitalized Lease Obligation” means that portion of the obligations under a Capital Lease
that is required to be capitalized in accordance with GAAP.

     “Cash Equivalents” means (a) marketable direct obligations issued or unconditionally
guaranteed by the United States or issued by any agency thereof and backed by the full faith and
credit of the United States, in each case maturing within 1 year from the date of acquisition
thereof, (b) marketable direct obligations issued by any state of the United States or any
political subdivision of any such state or any public instrumentality thereof maturing within 1
year from the date of acquisition thereof and, at the time of acquisition, having one of the two
highest ratings obtainable from either Standard & Poor’s Rating Group (“S&P”) or Moody’s Investors
Service, Inc. (“Moody’s”), (c) commercial paper maturing no more than 270 days from the date of
creation thereof and, at the time of acquisition, having a rating of at least A-1 from S&P or at
least P-1 from Moody’s, and (d) certificates of deposit or bankers’ acceptances maturing within 1
year from the date of acquisition thereof either (i) issued by any bank organized under the laws of
the United States or any state thereof having at the date of acquisition thereof combined capital
and surplus of not less than $250,000,000, (e) Deposit Accounts maintained with (i) any bank that
satisfies the criteria described in clause (d) above, or (ii) any other bank organized
under the laws of the United States or any state thereof so long as the amount maintained with any
such other bank is less than

-5-

 

or equal to $100,000 and is insured by the Federal Deposit Insurance Corporation, and (f)
Investments in money market funds substantially all of whose assets are invested in the types of
assets described in clauses (a) through (e) above.

     “Cash Management Account” has the meaning set forth in Section 2.7(a).

     “Cash Management Agreements” means the Cash Management Agreement executed and delivered to
Agent in connection with the Existing Credit Agreement.

     “Cash Management Bank” has the meaning set forth in Section 2.7(a).

     “CERCLA” means the Comprehensive Environmental Response Corporation, and Liability Act of
1980, 42 U.S.C. Section 9601, et. seq., as amended from time to time.

     “Change of Control” means (a) any “person” or “group” (within the meaning of Sections 13(d)
and 14(d) of the Exchange Act) becomes the beneficial owner (as defined in Rule 13d-3 under the
Exchange Act), directly or indirectly, of 10%, or more, of the Stock of Borrower having the right
to vote for the election of members of the Board of Directors, or (b) a majority of the members of
the Board of Directors do not constitute Continuing Directors, or (c) Borrower ceases to own and
control, directly or indirectly, 100% of the outstanding capital Stock of each of the Pledging
Subsidiaries.

     “Closing Date” means the date of the making of the initial Advance or Term Loan (or other
extension of credit) under the Existing Credit Agreement.

     “Code” means the Georgia Uniform Commercial Code, as in effect from time to time;
provided, however, that in the event that, by reason of mandatory provisions of
law, any or all of the attachment, perfection, priority, or remedies with respect to Agent’s Lien
on any Collateral is governed by the Uniform Commercial Code as enacted and in effect in a
jurisdiction other than the State of Georgia, the term “Code” shall mean the Uniform Commercial
Code as enacted and in effect in such other jurisdiction solely for purposes of the provisions
thereof relating to such attachment, perfection, priority, or remedies.

     “Collateral” means all assets and interests in assets and proceeds thereof, now owned or
hereafter acquired by Borrower or its Subsidiaries in or upon which a Lien is granted under any of
the Loan Documents.

     “Collateral Access Agreement” means a landlord waiver, bailee letter, or acknowledgement
agreement of any lessor, warehouseman, processor, consignee, or other Person in possession of,
having a Lien upon, or having rights or interests in Borrower’s or its Subsidiaries’ Books,
Equipment or Inventory, in each case, in form and substance satisfactory to Agent.

     “Collateral Value Amount” has the meaning set forth in Section 6.23.

     “Collections” means all cash, checks, notes, instruments, and other items of payment
(including insurance proceeds, proceeds of cash sales, rental proceeds, and tax refunds) of
Borrower and each of its Subsidiaries including, its rights to distributions from the LLC and the
Partnerships.

     “Commitment” means, with respect to each Lender, its Revolver Commitment, its Term Loan
Commitment, or its Total Commitment, as the context requires, and, with respect to all Lenders,
their Revolver Commitments, their Term Loan Commitments, or their Total Commitments, as the context
requires, in each case as such Dollar amounts are set forth beside such Lender’s name under the
applicable heading on Schedule C-1 or on the signature page of the Assignment and
Acceptance pursuant

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to which such Lender became a Lender hereunder, as such amounts may be reduced or increased
from time to time pursuant to assignments made in accordance with the provisions of Section
14.1.

     “Compliance Certificate” means a certificate substantially in the form of Exhibit C-1
delivered by the president or chief financial officer of Borrower to Agent.

     “Continuing Director” means (a) any member of the Board of Directors who was a director (or
comparable manager) of Borrower on the Closing Date, and (b) any individual who becomes a member of
the Board of Directors after the Closing Date if such individual was appointed or nominated for
election to the Board of Directors by a majority of the Continuing Directors, but excluding any
such individual originally proposed for election in opposition to the Board of Directors in office
at the Closing Date in an actual or threatened election contest relating to the election of the
directors (or comparable managers) of Borrower (as such terms are used in Rule 14a-11 under the
Exchange Act) and whose initial assumption of office resulted from such contest or the settlement
thereof.

     “Contribution Agreement” means the Second Amended and Restated Contribution and
Indemnification Agreement among Borrower and the Pledging Subsidiaries.

     “Control Agreement” means a control agreement, in form and substance satisfactory to Agent,
executed and delivered by the Borrower or any of its Subsidiaries, Agent, and the applicable
securities intermediary with respect to a Securities Account or a bank with respect to a DDA.

     “Daily Balance” means, as of any date of determination and with respect to any Obligation, the
amount of such Obligation owed at the end of such day.

     “DDA” means any checking or other demand deposit account maintained by Borrower or any
Subsidiary.

     “Default” means an event, condition, or default that, with the giving of notice, the passage
of time, or both, would be an Event of Default.

     “Defaulting Lender” means any Lender that fails to make any Advance or Term Loan (or other
extension of credit) that it is required to make hereunder on the date that it is required to do so
hereunder.

     “Defaulting Lender Rate” means (a) for the first 3 days from and after the date the relevant
payment is due, the Base Rate, and (b) thereafter, at the interest rate then applicable to Advances
that are Base Rate Loans (inclusive of the Base Rate Margin applicable thereto).

     “Designated Account” means that certain DDA of Borrower identified on Schedule D-1.

     “Designated Account Bank” means Wells Fargo.

     “Disbursement Letter” means an instructional letter executed and delivered by Borrower to
Agent regarding the extensions of credit to be made on the Closing Date and/or thereafter, the form
and substance of which is satisfactory to Agent.

     “Dollars” or “$” means United States dollars.

     “Eastern American” means Eastern American Energy Corporation, a West Virginia corporation.

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     “EBITDAX” means, with respect to any fiscal period, Borrower’s and its Subsidiaries’
consolidated net earnings (or loss), as determined in accordance with GAAP, minus extraordinary
gains, plus extraordinary losses, minus gain on sale of Permitted Dispositions, plus loss on sale
of Permitted Dispositions, plus interest expense, income taxes, depletion, depreciation and
amortization, exploration and impairment expense, and valuation losses that recognize changes in
the value of derivatives minus valuation gains that recognize changes in the value of derivatives
to the extent that such changes in the value of derivatives were included in consolidated net
earnings (or loss) plus cash received from Permitted Dispositions to the extent that such cash is
paid to Agent for application to the Obligations.

     “Eligible Proved Developed Producing Reserves” means the Eligible Proved Developed Producing
Reserves of the Partnerships and the LLC and the Eligible Proved Developed Producing Reserves of
the Pledging Subsidiaries, the Hydrocarbons from which are directly deliverable from the Wells to
the Gathering System or to a transporter or buyer which is a non-Affiliate of Borrower or its
Subsidiaries.

     “Eligible Proved Developed Producing Reserves of the Partnerships and the LLC” means the
Proved Developed Producing Reserves of the Partnerships and the LLC that (a) are identified on
Schedule 5.1(a), and (b) comply in all material respects with each and all of the
representations and warranties made by Borrower to Agent in the Loan Documents. An item of Proved
Developed Producing Reserves of the Partnerships and the LLC shall not be included in Eligible
Proved Developed Producing Reserves of the Partnerships and the LLC if:

     (i) the LLC or the applicable Partnership is not Solvent or subject to an Insolvency
Proceeding;

     (ii) it is not owned by the LLC or the applicable Partnership, or the LLC or the
applicable Partnership does not have good, valid, and indefeasible title thereto, or the
title information relating thereto is not satisfactory;

     (iii) Borrower and its Subsidiaries have not assigned to Agent and granted Agent a
first priority perfected security interest in and to their interests in the LLC and the
applicable Partnership and their share of monies, distributions, profits and revenues from
the LLC and the Partnership;

     (iv) any consents or approvals required for Borrower or any of its Subsidiaries to
assign or grant a security interest in accordance with (iii) above have not been obtained
and delivered to Agent; or

     (v) it is subject to a Lien in favor of a Person (other than Agent) or any order,
judgment, writ, or decree which either restricts or purports to restrict the ability of the
LLC or the applicable Partnership to grant Liens to Persons on or in respect of its assets
and properties; other than Permitted Liens.

     “Eligible Proved Developed Producing Reserves of the Pledging Subsidiaries” means the Proved
Developed Producing Reserves of the Pledging Subsidiaries that (a) are subject to a duly executed
and recorded Mortgage that creates a valid and enforceable first priority perfected lien on and
security interest in the Oil and Gas Properties attributable thereto; (b) are identified on
Schedule 5.1(a); and (c) comply in all material respects with each and all of the
representations and warranties made by the Pledging Subsidiaries to Agent in the Loan Documents.
An item of Proved Developed Producing Reserves of the Pledging Subsidiaries shall not be included
in Eligible Proved Developed Producing Reserves of the Pledging Subsidiaries if:

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     (i) the Pledging Subsidiary is not Solvent or subject to an Insolvency Proceeding;

     (ii) it is not owned by a Pledging Subsidiary or a Pledging Subsidiary does not have
good, valid, and indefeasible title thereto, or the title information relating thereto is
not satisfactory to Agent;

     (iii) it is not subject to a valid, enforceable and perfected first priority Lien and
security interest in favor of Agent created by a duly executed and recorded Mortgage;

     (iv) any consents or approvals required for its valid transfer, assignment, pledge or
mortgage have not been obtained and delivered to Agent; or

     (v) it is subject to a Lien in favor of any third Person or any order, judgment, writ,
or decree which either restricts or purports to restrict the ability of Borrower or a
Pledging Subsidiary to grant Liens to other Persons on or in respect of its respective
assets or properties, other than Permitted Liens.

     “Eligible Transferee” means (a) a commercial bank organized under the laws of the United
States, or any state thereof, and having total assets in excess of $250,000,000, (b) a commercial
bank organized under the laws of any other country which is a member of the Organization for
Economic Cooperation and Development or a political subdivision of any such country and which has
total assets in excess of $250,000,000, provided that such bank is acting through a branch or
agency located in the United States, (c) a finance company, insurance company, or other financial
institution or fund that is engaged in making, purchasing, or otherwise investing in commercial
loans in the ordinary course of its business and having (together with its Affiliates) total assets
in excess of $250,000,000, (d) any Affiliate (other than individuals) of a Lender that was party
hereto as of the Closing Date, (e) so long as no Event of Default has occurred and is continuing,
any other Person approved by Agent and Borrower, and (f) during the continuation of an Event of
Default, any other Person approved by Agent.

     “Energy Business” means (a) the acquisition, exploration, exploitation, development, operation
and disposition of interests in Oil and Gas Properties; (b) the gathering, marketing, treating,
processing, storage, selling and transporting of any production from such interests or properties
including, without limitation, the marketing of Hydrocarbons obtained from third Persons; (c) any
business relating to or arising from exploration for or development, production, treatment,
processing, storage, transportation or marketing of Hydrocarbons, including without limitation (i)
the production of electricity or other sources of power using oil, gas or other hydrocarbon
products, and (ii) providing services in support of or incidental to any such business or activity;
and (d) any activity that is ancillary or necessary or desirable to facilitate the activities
described in clauses (a) through (c) of this definition.

     “Environmental Actions” means any complaint, summons, citation, notice, directive, order,
claim, litigation, investigation, judicial or administrative proceeding, judgment, letter, or other
communication from any Governmental Authority, or any third party involving violations of
Environmental Laws or releases of Hazardous Materials (a) from any assets, properties, or
businesses of Borrower or its Subsidiaries, or any predecessor in interest, (b) from adjoining
properties or businesses, or (c) from or onto any facilities which received Hazardous Materials
generated by Borrower or its Subsidiaries, or any predecessor in interest.

     “Environmental Law” means any applicable federal, state, provincial, foreign or local statute,
law, rule, regulation, ordinance, code, binding and enforceable guideline, binding and enforceable
written policy, or rule of common law now or hereafter in effect and in each case as amended, or
any judicial or administrative interpretation thereof, including any judicial or administrative
order, consent decree or

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judgment, in each case, to the extent binding on Borrower or its Subsidiaries, relating to the
environment, the effect of the environment on employee health, or Hazardous Materials, including
the Comprehensive Environmental Response Compensation and Liability Act, 42 USC §9601 et seq.; the
Resource Conservation and Recovery Act, 42 USC §6901 et seq.; the Federal Water Pollution Control
Act, 33 USC §1251 et seq.; the Toxic Substances Control Act, 15 USC §2601 et seq.; the Clean Air
Act, 42 USC §7401 et seq.; the Safe Drinking Water Act, 42 USC §3803 et seq.; the Oil Pollution Act
of 1990, 33 USC §2701 et seq.; the Emergency Planning and the Community Right-to-Know Act of 1986,
42 USC §11001 et seq.; the Hazardous Material Transportation Act, 49 USC §1801 et seq.; and the
Occupational Safety and Health Act, 29 USC §651 et seq. (to the extent it regulates occupational
exposure to Hazardous Materials); any state and local or foreign counterparts or equivalents, in
each case as amended from time to time.

     “Environmental Liabilities and Costs” means all liabilities, monetary obligations, Remedial
Actions, losses, damages, punitive damages, consequential damages, treble damages, costs and
expenses (including all reasonable fees, disbursements and expenses of counsel, experts, or
consultants and costs of investigation and feasibility studies), fines, penalties, sanctions, and
interest incurred as a result of any claim or demand by any Governmental Authority or any third
party, and which relate to any Environmental Action.

     “Environmental Lien” means any Lien in favor of any Governmental Authority for Environmental
Liabilities and Costs.

     “Equipment” means equipment (as that term is defined in the Code) and includes all of
Borrower’s and each Subsidiary’s now owned or hereafter acquired right, title, and interest with
respect to equipment, machinery, machine tools, motors, furniture, furnishings, fixtures, vehicles
(including motor vehicles), tools, parts, and goods (other than consumer goods, farm products, or
Inventory), wherever located, including all attachments, accessories, accessions, replacements,
substitutions, additions, and improvements to any of the foregoing.

     “ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and any
successor statute thereto.

     “ERISA Affiliate” means (a) any Person subject to ERISA whose employees are treated as
employed by the same employer as the employees of Borrower or its Subsidiaries under IRC Section
414(b), (b) any trade or business subject to ERISA whose employees are treated as employed by the
same employer as the employees of Borrower or its Subsidiaries under IRC Section 414(c), (c) solely
for purposes of Section 302 of ERISA and Section 412 of the IRC, any organization subject to ERISA
that is a member of an affiliated service group of which Borrower or any of its Subsidiaries is a
member under IRC Section 414(m), or (d) solely for purposes of Section 302 of ERISA and Section 412
of the IRC, any Person subject to ERISA that is a party to an arrangement with Borrower or any of
its Subsidiaries and whose employees are aggregated with the employees of Borrower or any of its
Subsidiaries under IRC Section 414(o).

     “Event of Default” has the meaning set forth in Section 8.

     “Excess Availability” means the amount, as of the date any determination thereof is to be
made, equal to Availability minus the aggregate amount, if any, of all trade payables of Borrower
and each of its Subsidiaries aged in excess of 60 days past invoice date unless disputed in good
faith by appropriate proceedings diligently conducted and for which reserves adequate under GAAP
have been established and all book overdrafts in excess of their historical practices with respect
thereto, in each case as determined by Agent in its Permitted Discretion.

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     “Exchange Act” means the Securities Exchange Act of 1934, as in effect from time to time.

     “Fee Letter” means that certain fee letter, dated as of even date herewith, between Borrower
and Agent, in form and substance satisfactory to Agent.

     “FEIN” means Federal Employer Identification Number.

     “Filing Authorization Letter” means a letter duly executed by Borrower and each Pledging
Subsidiary authorizing Agent to file appropriate financing statements in such office or offices as
may be necessary or, in the opinion of Agent, desirable to perfect the security interests to be
created by the Loan Documents.

     “Fixed Charge Coverage Ratio” means, with respect to Borrower and its Subsidiaries for any
period, computed on a rolling four-quarter basis, the ratio of (a) EBITDAX for such period minus
Capital Expenditures made (to the extent not already incurred in a prior period) or incurred during
such period, to (b) Fixed Charges for such period.

     “Fixed Charges” means with respect to Borrower and its Subsidiaries for any period, the sum,
without duplication, on a cash basis, of (a) Interest Expense, (b) principal payments required and
paid during such period in respect of Indebtedness, (c) dividends and (d) all federal, state, and
local income taxes paid for such period.

     “Foothill” means Wells Fargo Foothill, Inc., a California corporation.

     “Funding Date” means the date on which a Borrowing occurs.

     “GAAP” means generally accepted accounting principles as in effect from time to time in the
United States, consistently applied.

     “Gathering Systems” means all right, title and interest of Borrower and each of its Pledging
Subsidiaries in and to all (i) Hydrocarbon pipelines through which any Hydrocarbons produced from
any of the Wells flows to, or has flowed at any time during the preceding twelve (12) month period
immediately preceding the date of this Agreement, to a master/sales meter from which such
Hydrocarbons can be sold to, or delivered for further transport to, a non-Affiliate of Borrower or
any of its Subsidiaries (“Subject Pipelines”); (ii) meters, compressors, drips, stripping or other
treatment plants or facilities, drips and other facilities located on or used in connection with or
related to the Subject Pipelines; (iii) easements, rights of way, permits, licenses, road boring
agreements and similar contracts and grants pursuant to which the Subject Pipelines were
constructed or exist (whether such rights are contained in a separate instrument or in an oil and
gas lease or other instrument); and (iv) all accounts, contract rights and general intangibles
related to the Hydrocarbons produced from the Wells.

     “Governing Documents” means, with respect to any Person, the certificate or articles of
incorporation, by-laws, or other organizational documents of such Person.

     “Governmental Approval” means (a) any authorization, consent, approval, license, ruling,
permit, tariff, rate, certification, waiver, exemption, filing, variance, claim, order, judgment or
decree of or with, (b) any required notice to, (c) any declaration of or with, or (d) any
registration by or with, any Governmental Authority.

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     “Governmental Authority” means any federal, state, local, or other governmental or
administrative body, instrumentality, board, department, or agency or any court, tribunal,
administrative hearing body, arbitration panel, commission, or other similar dispute-resolving
panel or body.

     “Governmental Rule” means any statute, law, regulation, ordinance, rule, judgment, order,
decree, permit, concession, grant, franchise, license, agreement, directive, requirement of, or
other governmental restriction or any similar binding form of decision of or determination by, or
any binding interpretation or administration of any of the foregoing by, any Governmental
Authority, whether now or hereafter in effect.

     “Hazardous Materials” means (a) substances that are defined or listed in, or otherwise
classified pursuant to, any applicable laws or regulations as “hazardous substances,” “hazardous
materials,” “hazardous wastes,” “toxic substances,” or any other formulation intended to define,
list, or classify substances by reason of deleterious properties such as ignitability, corrosivity,
reactivity, carcinogenicity, reproductive toxicity, or “EP toxicity”, (b) oil, petroleum, or
petroleum derived substances, natural gas, natural gas liquids, synthetic gas, drilling fluids,
produced waters, and other wastes associated with the exploration, development, or production of
crude oil, natural gas, or geothermal resources, (c) any flammable substances or explosives or any
radioactive materials, and (d) asbestos in any form or electrical equipment that contains any oil
or dielectric fluid containing levels of polychlorinated biphenyls in excess of 50 parts per
million.

     “Hedging Agreement” means (a) any hedging contract, forward contract, swap agreement, futures
contract or other hydrocarbon pricing protection agreement or option with respect to any such
transaction, designed to hedge against fluctuations in Hydrocarbon prices, (b) any rate swap, rate
cap, rate floor, rate collar, forward rate agreement or other rate protection agreement or option
with respect to any such transaction, designed to hedge against fluctuations in interest rates, and
(c) any other derivative agreement or other similar agreement or arrangement, in each case
evidenced by an ISDA Agreement with appropriate schedule and confirmation.

     “Hedging Obligations” means, with respect to any Person, all liabilities (including but not
limited to obligations and liabilities arising in connection with or as a result of early or
premature termination of a Hedging Agreement, whether or not occurring as a result of a default
thereunder) of such Person under a Hedging Agreement whether direct or by a guaranty; provided,
however, that such liabilities in connection with Hedging Agreements between Borrower and Bank of
America, N.A. shall be Hedging Obligations hereunder if, and then only to the extent, Agent has
timely received from Bank of America, N.A. such information in writing in connection therewith as
Agent may, from time to time, request.

     “Highest Lawful Rate” means on any day, the maximum nonusurious rate of interest permitted for
that day by whichever of applicable federal or Georgia law permits the higher interest rate, stated
as a rate per annum.

     “Hydrocarbon Interests” means all rights, titles and interests in and to oil and gas leases,
oil, gas and mineral leases, other Hydrocarbon leases, mineral interests, mineral servitudes,
overriding royalty interests, royalty interests, net profits interests, production payment
interests, and other similar interests.

     “Hydrocarbon Interests Hedging Agreement Reserves” means as of any date of determination,
reserves in an amount, if positive, equal to (a) the aggregate Hedging Obligations of Borrower, its
Subsidiaries and Affiliates to Bank Product Providers relating to commodities or commodity prices,
minus (b) (i) 65% multiplied by the PV-10 Value of the Total Proved Developed
Producing Reserves as

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set forth in the Reserve Report most recently delivered to Agent, calculated in a manner
consistent with the determination of the Borrowing Base, minus (ii) the Maximum Loan
Amount.

     “Hydrocarbons” means, collectively, oil, gas, casinghead gas, drip gasoline, natural gasoline,
condensate, distillate and all other liquid or gaseous hydrocarbons and related minerals and all
products therefrom, in each case whether in a natural or a processed state.

     “Indebtedness” of any Person means, without duplication, (a) all obligations of such Person
for borrowed money or with respect to deposits or advances of any kind, (b) all obligations of such
Person evidenced by bonds, debentures, notes or similar instruments, (c) all obligations of such
Person upon which interest charges are customarily paid, (d) all obligations of such Person under
conditional sale or other title retention agreements relating to Property acquired by such Person,
(e) all obligations of such Person in respect of the deferred purchase price of Property or
services (excluding current accounts payable incurred in the ordinary course of business), (f) all
Indebtedness of others secured by (or for which the holder of such Indebtedness has an existing
right, contingent or otherwise, to be secured by) any Lien on Property owned or acquired by such
Person, whether or not the Indebtedness secured thereby has been assumed, (g) all guarantees by
such Person of Indebtedness of others, (h) all Capitalized Lease Obligations of such Person, (i)
all obligations, contingent or otherwise, of such Person as an account party in respect of letters
of credit and letters of guaranty, (j) all obligations, contingent or otherwise, of such Person in
respect of bankers’ acceptances, (k) all obligations of such Person with respect to any
arrangement, directly or indirectly, whereby such Person shall sell or transfer any material asset,
and whereby such Person shall then or immediately thereafter rent or lease as lessee such asset or
any part thereof, (l) all recourse and support obligations of such Person with respect to the sale
or discount of any of its accounts receivable, (m) all obligations of such Person with respect to
any arrangement for the purchase of materials, supplies, other Property or services if such
arrangement by its express terms requires that payment be made by such Person regardless of whether
such materials, supplies, other Property or services are delivered or furnished to it, (n) all
obligations of such Person with respect to Production Payments, (o) net liabilities of such Person
under all Hedging Obligations, (p) all obligations of such Person under any prepayment for oil and
gas production or other similar agreement, and (q) all obligations of such Person under operating
leases which require such Person to make payments over the term of such lease based on the purchase
price or appraised value of the Property subject to such lease plus a marginal interest rate, and
used primarily as a financing vehicle for, or to monetize, such Property. The Indebtedness of any
Person shall include the Indebtedness of any other entity (including any partnership in which such
Person is a general partner) to the extent such Person is liable therefor as a result of such
Person’s ownership interest in or other relationship with such entity, except to the extent the
terms of such Indebtedness provide that such Person is not liable therefor.

     “Indemnified Liabilities” has the meaning set forth in Section 11.3.

     “Indemnified Person” has the meaning set forth in Section 11.3.

     “Initial Reserve Report” means the report delivered to Agent dated as of January 1, 2004,
prepared by Ryder Scott Company Petroleum Consultants with respect to the Oil and Gas Properties of
Borrower, its Subsidiaries, the LLC and the Partnerships, a true and correct copy of which has been
delivered to Agent and the Lenders.

     “Initial Term Loan” means the term loan made by Lenders pursuant to the Existing Credit
Agreement in the principal amount equal to the Initial Term Loan Amount.

     “Initial Term Loan Amount” means $75,000,000.00.

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     “Insolvency Proceeding” means any proceeding commenced by or against any Person under any
provision of the Bankruptcy Code or under any other state or federal bankruptcy or insolvency law,
assignments for the benefit of creditors, formal or informal moratoria, compositions, extensions
generally with creditors, or proceedings seeking reorganization, arrangement, or other similar
relief.

     “Intangible Assets” means, with respect to any Person, that portion of the book value of all
of such Person’s assets that would be treated as intangibles under GAAP.

     “Interest Expense” means, for any period, the aggregate of the interest expense of Borrower
and its Subsidiaries for such period, determined on a consolidated basis in accordance with GAAP.

     “Interest Period” means, with respect to each LIBOR Rate Loan, a period commencing on the date
of the making of such LIBOR Rate Loan (or the continuation of a LIBOR Rate Loan or the conversion
of a Base Rate Loan to a LIBOR Rate Loan) and ending 1, 3, 6 or 12 months thereafter;
provided, however, that (a) if any Interest Period would end on a day that is not a
Business Day, such Interest Period shall be extended (subject to clauses (c)-(e) below) to the next
succeeding Business Day, (b) interest shall accrue at the applicable rate based upon the LIBOR Rate
from and including the first day of each Interest Period to, but excluding, the day on which any
Interest Period expires, (c) any Interest Period that would end on a day that is not a Business Day
shall be extended to the next succeeding Business Day unless such Business Day falls in another
calendar month, in which case such Interest Period shall end on the next preceding Business Day,
(d) with respect to an Interest Period that begins on the last Business Day of a calendar month (or
on a day for which there is no numerically corresponding day in the calendar month at the end of
such Interest Period), the Interest Period shall end on the last Business Day of the calendar month
that is 1, 3, 6 or 12 months after the date on which the Interest Period began, as applicable, and
(e) Borrower may not elect an Interest Period which will end after the Maturity Date.

     “Intercompany Notes” has the meaning assigned that term in Section 7.13.

     “Inventory” means all Borrower’s and each Subsidiaries’ now owned or hereafter acquired right,
title, and interest with respect to inventory, including goods held for sale or lease or to be
furnished under a contract of service, goods that are leased by Borrower or any of its Subsidiaries
as lessor, goods that are furnished by Borrower or any of its Subsidiaries under a contract of
service, and raw materials, work in process, or materials used or consumed in Borrower’s or any
Subsidiaries’ business.

     “Investment” means, with respect to any Person, any investment by such Person in any other
Person (including Affiliates) in the form of loans, guarantees, advances, or capital contributions
(excluding (a) commission, travel, and similar advances to officers and employees of such Person
made in the ordinary course of business, and (b) bona fide Accounts arising in the ordinary course
of business consistent with past practices), purchases or other acquisitions for consideration of
Indebtedness, Stock, or all or substantially all of the assets of such other Person (or of any
division or business line of such other Person), and any other items that are or would be
classified as investments on a balance sheet prepared in accordance with GAAP.

     “IRC” means the Internal Revenue Code of 1986, as in effect from time to time.

     “Issuing Lender” means Foothill or any other Lender that, at the request of Borrower and with
the consent of Agent agrees, in such Lender’s sole discretion, to become an Issuing Lender for the
purpose of issuing L/Cs or L/C Undertakings pursuant to Section 2.12.

     “L/C” has the meaning set forth in Section 2.12(a).

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     “L/C Disbursement” means a payment made by the issuing Lender pursuant to a Letter of Credit.

     “L/C Undertaking” has the meaning set forth in Section 2.12(a).

     “Lender” and “Lenders” have the respective meanings set forth in the preamble to this
Agreement, and shall include any other Person made a party to this Agreement in accordance with the
provisions of Section 14.1.

     “Lender Group” means, individually and collectively, each of the Lenders (including the
Issuing Lender) and Agent.

     “Lender Group Expenses” means all (a) costs or expenses (including taxes, and insurance
premiums) required to be paid by Borrower or any of its Subsidiaries under any of the Loan
Documents that are paid, advanced, or incurred by the Lender Group, (b) fees or charges paid or
incurred by Agent in connection with the Lender Group’s transactions with Borrower or any of its
Subsidiaries, including, fees or charges for photocopying, notarization, couriers and messengers,
telecommunication, public record searches (including tax lien, litigation, and UCC searches and
including searches with the patent and trademark office, the copyright office, or the department of
motor vehicles), filing, recording, publication, appraisal (including periodic collateral
appraisals or business valuations to the extent of the fees and charges (and up to the amount of
any limitation) contained in this Agreement), real estate surveys, real estate title policies and
endorsements, and environmental audits, (c) costs and expenses incurred by Agent in the
disbursement of funds to or for the account of Borrower or other members of the Lender Group (by
wire transfer or otherwise), (d) charges paid or incurred by Agent resulting from the dishonor of
checks, (e) reasonable costs and expenses paid or incurred by the Lender Group to correct any
default or enforce any provision of the Loan Documents, or in gaining possession of, maintaining,
handling, preserving, storing, shipping, selling, preparing for sale, or advertising to sell the
Collateral, or any portion thereof, irrespective of whether a sale is consummated, (f) audit fees
and expenses of Agent related to audit examinations of the Books to the extent of the fees and
charges (and up to the amount of any limitation) contained in this Agreement, (g) reasonable costs
and expenses of third party claims or any other suit paid or incurred by the Lender Group in
enforcing or defending the Loan Documents or in connection with the transactions contemplated by
the Loan Documents or the Lender Group’s relationship with Borrower or any of its Subsidiaries, (h)
Agent’s and each Lender’s reasonable costs and expenses (including attorneys fees) incurred in
advising, structuring, drafting, reviewing, administering, syndicating, or amending the Loan
Documents, and (i) Agent’s and each Lender’s reasonable costs and expenses (including attorneys,
accountants, consultants, and other advisors fees and expenses’) incurred in terminating, enforcing
(including attorneys, accountants, consultants, and other advisors fees and expenses incurred in
connection with a “workout,” a “restructuring,” or an Insolvency Proceeding concerning Borrower or
its Subsidiaries or in exercising rights or remedies under the Loan Documents), or defending the
Loan Documents, irrespective of whether suit is brought, or in taking any Remedial Action
concerning the Collateral.

     “Lender-Related Person” means, with respect to any Lender, such Lender together with such
Lender’s Affiliates, and the officers, directors, employees, attorneys, and agents of such Lender.

     “Letter of Credit” means an L/C or an L/C Undertaking, as the context requires.

     “Letter of Credit Usage” means, as of any date of determination, the aggregate undrawn amount
of all outstanding Letters of Credit plus 100% of the amount of outstanding time drafts accepted by
an Underlying Issuer as a result of drawings under Underlying Letters of Credit.

     “LIBOR Deadline” has the meaning set forth in Section 2.13(b)(i).

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     “LIBOR Notice” means a written notice in the form of Exhibit L-1.

     “LIBOR Option” has the meaning set forth in Section 2.13(a).

     “LIBOR Rate” means, for each Interest Period for each LIBOR Rate Loan, the rate per annum
determined by Agent (rounded upwards, if necessary, to the next 1/100%) by dividing (a) the Base
LIBOR Rate for such Interest Period, by (b) 100% minus the Reserve Percentage. The LIBOR Rate
shall be adjusted on and as of the effective day of any change in the Reserve Percentage.

     “LIBOR Rate Loan” means each portion of an Advance or the Term Loan that bears interest at a
rate determined by reference to the LIBOR Rate.

     “Lien” means any interest in an asset securing an obligation owed to, or a claim by, any
Person other than the owner of the asset, irrespective of whether (a) such interest is based on the
common law, statute, or contract, (b) such interest is recorded or perfected, and (c) such interest
is contingent upon the occurrence of some future event or events or the existence of some future
circumstance or circumstances. Without limiting the generality of the foregoing, the term “Lien”
includes the lien or security interest arising from a mortgage, deed of trust, encumbrance, pledge,
hypothecation, assignment, deposit arrangement, security agreement, conditional sale or trust
receipt, or from a lease, consignment, or bailment for security purposes and also includes
reservations, exceptions, encroachments, easements, rights-of-way, covenants, conditions,
restrictions, leases, and other title exceptions and encumbrances affecting Real Property.

     “LLC” means A&W LLC, a West Virginia limited liability company.

     “LLC Pledge Agreement” means the Second Amended and Restated Pledge and Security Agreement
dated as of even date herewith, executed by A&W in favor of the Agent or otherwise delivered
pursuant to the Loan Documents, in form, scope, and substance acceptable to the Agent.

     “Loan Account” has the meaning set forth in Section 2.10.

     “Loan Documents” means this Agreement, the Bank Product Agreements, the Cash Management
Agreements, the Control Agreements, the Disbursement Letter, the Fee Letter, the Intercompany
Notes, the Letters of Credit, the Mortgages, the Officers’ Certificate, the Security Documents, the
Subordination Agreements, any note or notes executed by Borrower in connection with this Agreement
and payable to a member of the Lender Group, and all the other agreements, documents and
instruments entered into from time to time, evidencing or securing the Obligations.

     “Material Adverse Change” means (a) a material adverse change in the business, prospects,
operations, results of operations, assets, liabilities or condition (financial or otherwise) of
Borrower and its Subsidiaries taken as a whole, (b) a material impairment of Borrower’s or any of
its Subsidiaries’ ability to perform its obligations under the Loan Documents to which it is a
party or of the Lender Group’s ability to enforce the Obligations or realize upon the Collateral,
or (c) a material impairment of the enforceability or priority of the Agent’s Liens with respect to
the Collateral as a result of an action or failure to act on the part of Borrower or any of its
Subsidiaries.

     “Material Contracts” means any supply, purchase, service, employment, tax, indemnity, gas
marketing, farm-in agreement, farm-out agreement, gas imbalance, operating, unitization,
communitization, partnership, joint venture, or other agreement of Borrower, its Subsidiaries, the
LLC or any Partnership or by which Borrower, its Subsidiaries, the LLC or any Partnership or any of
their respective properties are otherwise bound, if such agreement (i) requires the expenditure of
over

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$5,000,000.00 by the Borrower or any of its Subsidiaries during any calendar year, or (ii)
involves the sale of more than $5,000,000.00 in Hydrocarbons by the Borrower, any of its
Subsidiaries, the LLC, or any Partnership, or (iii) involves a liability of Borrower, any of its
Subsidiaries, the LLC, or any Partnership, in excess of $5,000,000.00, or (iv) is otherwise
determined by Agent, in its reasonable judgment, to be material to the business, operations, or
properties of Borrower or any of its Subsidiaries, as the same shall be amended, modified and
supplemented and in effect from time to time.

     “Maturity Date” has the meaning set forth in Section 3.4.

     “Maximum Loan Amount” means $200,000,000.00.

     “Maximum Revolver Amount” means $100,000,000.00, as such amount may be reduced from time to
time in accordance with Section 6.23.

     “Mortgage” means a Mortgage, Deed of Trust, Assignment, Security Agreement, Financing
Statement and Fixture Filing, dated as of the Closing Date or thereafter or otherwise delivered
pursuant to the Loan Documents, in form, scope and substance acceptable to the Agent, executed and
delivered by a Pledging Subsidiary or any other Subsidiary of Borrower, as amended, supplemented,
restated or otherwise modified from time to time in accordance with the terms of this Agreement and
the other Loan Documents. The term “Mortgage” shall include each Mortgage Supplement after
execution and delivery of such Mortgage Supplement. The term “Mortgages” shall include each and
every Mortgage executed and delivered by any of the Pledging Subsidiaries hereunder.

     “Mortgage Supplement” means a supplement to any Mortgage, in form and substance satisfactory
to the Agent, pursuant to which any Pledging Subsidiary will grant a lien on additional Property
subject to the terms of such Mortgage, as amended, supplemented, restated or otherwise modified
from time to time in accordance with the terms of this Agreement and the other Loan Documents.

     “Mortgaged Properties” means all of the Oil and Gas Properties and other collateral purported
to be subject to the Lien of the Mortgages.

     “Net Operating Income” means the projected revenue attributable to (a) the general partner
interests of the Pledging Subsidiaries in the Partnerships’ interests in the Eligible Proved
Developed Producing Reserves of the Partnerships, (b) the membership interests of the Pledging
Subsidiaries in the LLC’s interest in the Eligible Proved Developed Producing Reserves of the LLC,
and (c) the interests of the Pledging Subsidiaries in the Eligible Proved Developed Producing
Reserves of the Pledging Subsidiaries, which the Partnerships, the LLC and the Pledging
Subsidiaries can reasonably expect to receive from the sale of Hydrocarbons therefrom, as shown on
the most current Reserve Report net of royalties, minus production and severance taxes (including,
without limitation, any “windfall profits” or similar tax but excluding income taxes), and
production expenses, and minus the amount of all production revenue therefrom from the dates of
such reports to the determination date.

     “Non-Pledged Properties” means Property of Borrower, its Subsidiaries, the Partnerships, and
the LLC which does not constitute Borrowing Base Properties, the Gathering Systems, or assets or
interests subject to the Liens of the Partnership Pledge Agreements, the LLC Pledge Agreement, or
the Mortgages.

     “Non-Prepayment Premium Event” means that a material dispute exists between Agent and Borrower
as to the Availability due to (i) a redetermination of the Borrowing Base by the Agent or (ii) the
establishment of a reserve by Agent under Section 2.1(b) (other than due to an event
described in Section 

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2.1(b), clauses (i) through (vi) inclusive, except that a material dispute as
to the amount of a reserve established under Section 2.1(b) clauses (i) through (vi)
inclusive shall be resolved by binding arbitration under Section 17.13) and (x) at the time
of such dispute there exists no Default, Event of Default or Material Adverse Change and (y) the
Obligations are prepaid within 60 days from the date Borrower notifies Agent in writing of such
dispute.

     “Non-Recourse Debt” means Indebtedness as to which (a) neither Borrower nor any Subsidiary
(other than an Unrestricted Subsidiary) is directly or indirectly liable pursuant to the terms of
such Indebtedness, and (b) no default with respect to such Indebtedness would permit (upon notice,
lapse of time or otherwise) any holder of any other Indebtedness of Borrower or any Subsidiary to
declare a default on such other Indebtedness or cause the payment thereof to be accelerated or
payable prior to its stated maturity.

     “NYMEX” means the New York Mercantile Exchange or its successor.

     “NYMEX Price” means, as of the date of the determination thereof, the average of the 24
succeeding monthly futures contract prices, commencing with the month during which the
determination is to be made, for the category of Proved Developed Producing Reserves included in
the most recent Reserve Report provided by Borrower to Agent pursuant to Section 6.2 as
quoted on the NYMEX, or, if the NYMEX no longer provides futures contract price quotes for 24 month
periods, the longest period of quotes of less than 24 months shall be used, and, if the NYMEX no
longer provides such futures contract quotes or has ceased to operate, the Agent shall designate
another nationally recognized commodities exchange to replace the NYMEX.

     “Obligations” means (a) all loans (including the Term Loan), Advances, debts, principal,
interest (including any interest that, but for the commencement of an Insolvency Proceeding, would
have accrued), contingent reimbursement obligations with respect to outstanding Letters of Credit,
premiums, liabilities (including all amounts charged to Borrower’s Loan Account pursuant hereto),
obligations, fees (including the fees provided for in the Fee Letter), charges, costs, Lender Group
Expenses (including any fees or expenses that, but for the commencement of an Insolvency
Proceeding, would have accrued), lease payments, guaranties, covenants, and duties of any kind and
description owing by Borrower or any of the Subsidiaries to the Lender Group pursuant to or
evidenced by the Loan Documents (including, without limitation, all claims for indemnity under the
Loan Documents including claims under Section 11.3 of this Agreement) and irrespective of
whether for the payment of money, whether direct or indirect, absolute or contingent, due or to
become due, now existing or hereafter arising, and including all interest not paid when due and all
Lender Group Expenses that Borrower or any of its Subsidiaries are required to pay or reimburse by
the Loan Documents, by law, or otherwise, and (b) all Bank Product Obligations. Any reference in
this Agreement or in the Loan Documents to the Obligations shall include all amendments, changes,
extensions, modifications, renewals, alterations, replacements, substitutions, and supplements,
thereto and thereof, as applicable, both prior and subsequent to any Insolvency Proceeding.

     “Officers’ Certificate” means the representations and warranties of officers form submitted by
Agent to Borrower, together with Borrower’s completed responses to the inquiries set forth therein,
the form and substance of such responses to be satisfactory to Agent.

     “Oil and Gas Properties” means the Hydrocarbon Interests; the Properties now or hereafter
pooled or unitized with Hydrocarbon Interests; all presently existing or future unitization,
pooling agreements and declarations of pooled units and the units created thereby (including
without limitation all units created under orders, regulations and rules of any Governmental
Authority having jurisdiction) which may affect all or any portion of the Hydrocarbon Interests;
all operating agreements, joint venture agreements, contracts and other agreements which relate to
any of the Hydrocarbon Interests or the

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production, sale, purchase, exchange or processing of Hydrocarbons from or attributable to
such Hydrocarbon Interests; all Hydrocarbons in and under and which may be produced and saved or
attributable to the Hydrocarbon Interests, the lands covered thereby and all oil in tanks and all
rents, issues, profits, proceeds, products, revenues and other incomes from or attributable to the
Hydrocarbon Interests; all tenements, profits a prendre, hereditaments, appurtenances and
Properties in anywise appertaining, belonging, affixed or incidental to the Hydrocarbon Interests,
Properties, rights, titles, interests and estates described or referred to above, including any and
all Property, real or personal, now owned or hereinafter acquired and situated upon, used, held for
use or useful in connection with the operating, working or development of any of such Hydrocarbon
Interests or Property (excluding drilling rigs, automotive equipment or other personal Property
which may be on such premises for the purpose of drilling a well or for other similar temporary
uses) and including any and all oil wells, gas wells, water wells, injection wells or other wells,
buildings, structures, fuel separators, liquid extraction plants, plant compressors, pumps, pumping
units, field gathering systems, tanks and tank batteries, fixtures, valves, fittings, machinery and
parts, engines, boilers, meters, apparatus, equipment, appliances, tools, implements, cables,
wires, towers, casing, tubing and rods, surface leases, rights-of-way, easements and servitudes
together with all additions, substitutions, replacements, accessions and attachments to any and all
of the foregoing.

     “Originating Lender” has the meaning set forth in Section 14.1(e).

     “Overadvance” has the meaning set forth in Section 2.5.

     “Participant” has the meaning set forth in Section 14.1(e).

     “Partnership Pledge Agreements” means the Second Amended and Restated Partnership Pledge and
Security Agreements dated as of even date herewith or otherwise delivered pursuant to the Loan
Documents, in form, scope, and substance acceptable to the Agent, executed by the Pledging
Subsidiaries in favor of the Agent.

     “Partnerships” means those partnerships and joint ventures listed on Schedule P-1.

     “Permitted Discretion” means a determination made in good faith and in the exercise of
reasonable business judgment.

     “Permitted Dispositions” means (a) sales or other dispositions by Borrower or its Subsidiaries
of Equipment that is substantially worn, damaged, or obsolete in the ordinary course of business,
(b) sales by Borrower or its Subsidiaries of Inventory and Hydrocarbons to buyers in the ordinary
course of business, (c) the use or transfer of money or Cash Equivalents by Borrower or its
Subsidiaries in a manner that is not prohibited by the terms of this Agreement or the other Loan
Documents, (d) the licensing by Borrower or its Subsidiaries, on a non-exclusive basis, of patents,
trademarks, copyrights, and other intellectual property rights in the ordinary course of business,
(e) sales of Non-Pledged Properties of the Pledging Subsidiaries having an aggregate value not
exceeding $2,000,000.00 in any fiscal year of Borrower provided (i) the Non-Pledged Property
subject to disposition was acquired by a Pledging Subsidiary after the Closing Date and (ii) the
disposition does not expose a Bank Product Provider to increased risk under any Hedging Obligation,
(f) the abandonment, farm-out, lease, or sublease of undeveloped Oil and Gas Properties of Borrower
or any of its Subsidiaries in the ordinary course of business, (g) the trade or exchange by
Borrower or any of its Subsidiaries of any of its Oil and Gas Properties (other than the Borrowing
Base Properties, Non-Pledged Properties, and the Gathering Systems) for Oil and Gas Properties
owned by another Person which the Board of Directors of Borrower determines in good faith to be of
approximately equivalent value; and (h) sales of Non-Pledged Properties by Borrower or a Subsidiary
(other than a Pledging Subsidiary, the Partnerships or the LLC) provided (i)

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prior written notice of such sale or other disposition is delivered to Agent setting forth the
property to be sold or otherwise disposed of, its value, and such other information as Agent may
reasonably request, and (ii) if the aggregate value of such property or sale exceeds $10,000,000.00
in one or more transactions in any fiscal year, Agent shall have consented in writing in advance,
such consent by Agent not to be unreasonably withheld.

     “Permitted Investments” means (a) investments in Cash Equivalents, (b) investments in
negotiable instruments for collection, (c) advances made in connection with purchases of goods or
services in the ordinary course of business, (d) investments received in connection with the
bankruptcy or reorganization of suppliers and customers and in settlement of delinquent obligations
of and other disputes with, customers and suppliers arising in the ordinary course of business, (e)
investments made as a result of non-cash consideration of an asset sale that was made pursuant to a
Permitted Disposition, (f) acceptance by Borrower of notes payable from employees, officers, or
directors of Borrower or any of its Subsidiaries as payment for the purchase of common or Class A
stock by such employees; provided that (i) the aggregate principal amount owing to Borrower under
such notes shall not exceed $1,600,000.00 at any one time outstanding, and (ii) any such note shall
be secured by a pledge of the shares of stock purchased therewith, and (g) loans by Borrower to
officers, directors and employees in connection with Borrower’s annual drilling programs consistent
with past practices up to but not exceeding $2,000,000.00 in the aggregate at any one time
outstanding.

     “Permitted Liens” means (a) Liens held by Agent, (b) Liens for unpaid taxes that either (i)
are not yet delinquent, or (ii) do not constitute an Event of Default hereunder and are the subject
of Permitted Protests, (c) the interests of lessors under operating leases, (d) Liens arising by
operation of law in favor of warehousemen, landlords, carriers, mechanics, materialmen, laborers,
or suppliers, incurred in the ordinary course of business of Borrower or any of its Subsidiaries
and not in connection with the borrowing of money, and which Liens either (i) are for sums not yet
delinquent, or (ii) are the subject of Permitted Protests, (e) Liens arising from deposits made in
connection with obtaining worker’s compensation or other unemployment insurance, (f) Liens or
deposits to secure performance of bids, tenders, or leases incurred in the ordinary course of
business of Borrower or any of its Subsidiaries and not in connection with the borrowing of money,
(g) Liens granted as security for surety or appeal bonds in connection with obtaining such bonds in
the ordinary course of business of Borrower or any of its Subsidiaries, (h) with respect to any
Property (other than the Borrowing Base Properties) from which Hydrocarbons may be severed or
extracted in commercial quantities, Liens for farmout, farmin, joint operating, and area of mutual
interest agreements and/or similar arrangements that Borrower determines in good faith to be
necessary for the economic development of such Property (other than the Borrowing Base Properties)
and are customary and usual for the area in which such Property (other than the Borrowing Base
Properties) is located, (i) with respect to any Borrowing Base Properties from which Hydrocarbons
may be severed or extracted in commercial quantities, Liens for farm-out, farm-in, operating, joint
operating, and area of mutual interest agreements and/or similar arrangements that the Borrower
determines in good faith to be necessary for the economic development of such Borrowing Base
Properties and are customary and usual for the area in which such Borrowing Base Properties are
located; provided, however, that such Liens held by Borrower or any of its
Subsidiaries or Affiliates shall be expressly made subordinate to the Liens created by the Security
Documents pursuant to terms of a Subordination Agreement, (j) Liens associated with Production
Payments now existing or hereafter created on oil, gas or mineral leases or interests (other than
Borrowing Base Properties) now owned or hereafter acquired by the Borrower or any Subsidiary;
provided (i) such Liens are limited to the interest in the Properties subject to the Production
Payment and do not apply to any other Property or assets of Borrower or any Subsidiary and (ii)
such Liens only secure the Indebtedness incurred pursuant to the Production Payments, and (k)
royalties, overriding royalties, revenue interests, net revenue interest and other similar burdens
now existing or hereafter acquired on oil, gas or mineral leases or interests now

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owned or hereafter acquired by Borrower or any Subsidiary and, with respect to any Borrowing
Base Properties, are reflected in the most recent Reserve Report.

     “Permitted Protest” means the right of Borrower or any of its Subsidiaries, as applicable, to
protest any Lien (other than any such Lien that secures the Obligations), taxes (other than payroll
taxes or taxes that are the subject of a United States federal tax lien), or rental payment,
provided that (a) a reserve with respect to such obligation is established on the Books in such
amount as is required under GAAP, (b) any such protest is instituted promptly and prosecuted
diligently by Borrower or any of its Subsidiaries, as applicable, in good faith, and (c) Agent is
satisfied that, while any such protest is pending, there will be no impairment of the
enforceability, validity, or priority of any of the Agent’s Liens.

     “Person” means natural persons, corporations, limited liability companies, limited
partnerships, general partnerships, limited liability partnerships, joint ventures, trusts, land
trusts, business trusts, or other organizations, irrespective of whether they are legal entities,
and governments and agencies and political subdivisions thereof.

     “Personal Property Collateral” means all Collateral other than Hydrocarbon Interests and Real
Property.

     “Pledging Subsidiaries” means Eastern American, A&W and any other Subsidiary of Borrower that
executes a Mortgage, LLC Pledge Agreement and/or a Partnership Pledge Agreement.

     “Projections” means Borrower’s forecasted (a) balance sheets, (b) profit and loss statements,
and (c) cash flow statements, all prepared on a consistent basis with Borrower’s historical
financial statements, together with appropriate supporting details and a statement of underlying
assumptions.

     “Production Payments” means a production payment (whether volumetric or dollar denominated) or
similar royalty, overriding royalty, net profits interest or other similar interest in Oil and Gas
Properties, or the right to receive all or a portion of the production or the proceeds from the
sale of production attributable to such Oil and Gas Properties where the holder of such interest
has recourse solely to such interest and the grantor or transferor thereof has an express
contractual obligation to produce and sell Hydrocarbons from such Oil and Gas Properties, or to
cause such Oil and Gas Properties to be so operated and maintained, in each case in a reasonably
prudent manner.

     “Property” means any interest in any kind of Property or asset, whether real, personal or
mixed, or tangible or intangible.

     “Pro Rata Share” means, as of any date of determination:

     (a) with respect to a Lender’s obligation to make Advances and receive payments of
principal, interest, fees, costs, and expenses with respect thereto, (i) prior to the
Revolver Commitments being terminated or reduced to zero, the percentage obtained by
dividing (y) such Lender’s Revolver Commitment, by (z) the aggregate Revolver Commitments of
all Lenders, and (ii) from and after the time that the Revolver Commitments have been
terminated or reduced to zero, the percentage obtained by dividing (y) the aggregate
outstanding principal amount of such Lender’s Advances by (z) the aggregate outstanding
principal amount of all Advances,

     (b) with respect to a Lender’s obligation to participate in Letters of Credit, to
reimburse the Issuing Lender, and to receive payments of fees with respect thereto, (i)
prior to the Revolver Commitments being terminated or reduced to zero, the percentage
obtained by dividing (y) such Lender’s Revolver Commitment, by (z) the aggregate Revolver
Commitments of all

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Lenders, and (ii) from and after the time that the Revolver Commitments have been
terminated or reduced to zero, the percentage obtained by dividing (y) the aggregate
outstanding principal amount of such Lender’s Advances by (z) the aggregate outstanding
principal amount of all Advances,

     (c) with respect to a Lender’s obligation to make the Term Loan and receive payments of
interest, fees, and principal with respect thereto, (i) prior to the making of the Term
Loan, the percentage obtained by dividing (y) such Lender’s Term Loan Commitment, by (z) the
aggregate amount of all Lenders’ Term Loan Commitments, and (ii) from and after the making
of the Term Loan, the percentage obtained by dividing (y) the principal amount of such
Lender’s portion of the Term Loan by (z) the principal amount of the Term Loan, and

     (d) with respect to all other matters as to a particular Lender (including the
indemnification obligations arising under Section 16.7), the percentage obtained by
dividing (i) such Lender’s Revolver Commitment plus the outstanding principal amount of such
Lender’s portion of the Term Loan, by (ii) the aggregate amount of Total Commitments of all
Lenders plus the outstanding principal amount of the Term Loan; provided,
however, that, in the event the Revolver Commitments have been terminated or reduced
to zero, the Pro Rata Share under this clause shall be the percentage obtained by dividing
(A) the outstanding principal amount of such Lender’s Advances plus such Lender’s ratable
portion of the Risk Participation Liability with respect to outstanding Letters of Credit
plus the outstanding principal amount of such Lender’s portion of the Term Loan, by (B) the
outstanding principal amount of all Advances plus the aggregate amount of the Risk
Participation Liability with respect to the outstanding Letters of Credit plus the principal
amount of the Term Loan.

     “Proved Developed Non-Producing Reserves” means those Oil and Gas Properties of the Borrower,
the Pledging Subsidiaries, the LLC and the Partnerships designated as “proved developed
non-producing” (in accordance with the Definitions for Oil and Gas Reserves approved by the Board
of Directors of the Society for Petroleum Engineers, Inc. from time to time) in the Reserve Report.

     “Proved Developed Producing Reserves” means those Oil and Gas Properties designated as “proved
developed producing” (in accordance with the Definitions for Oil and Gas Reserves approved by the
Board of Directors of the Society for Petroleum Engineers, Inc.), from time to time in the Reserve
Report.

     “Proved Developed Producing Reserves of the Partnerships and the LLC” means those Oil and Gas
Properties of the Partnerships and the LLC designated as “proved developed producing” (in
accordance with the Definitions for Oil and Gas Reserves approved by the Board of Directors of the
Society for Petroleum Engineers, Inc. from time to time) in the Reserve Report and used in
establishing the Borrowing Base.

     “Proved Developed Producing Reserves of the Pledging Subsidiaries” means those Oil and Gas
Properties of the Pledging Subsidiaries designated as “proved developed producing” (in accordance
with the Definitions for Oil and Gas Reserves approved by the Board of Directors of the Society for
Petroleum Engineers, Inc., from time to time) in the Reserve Report and used in establishing the
Borrowing Base.

     “Proved Undeveloped Reserves” means those Oil and Gas Properties of the Pledging Subsidiaries,
the LLC and the Partnerships designated as “proved undeveloped” (in accordance with the Definitions
for Oil and Gas Reserves approved by the Board of Directors of the Society for Petroleum Engineers,
Inc. from time to time) in the Reserve Report.

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     “PV-10 Value” means, as of the date of determination, the sum of the present values of the Net
Operating Income expected to be received in each of the months following the date of determination,
determined as follows:

     (a) the Net Operating Income shall be determined on the lesser amount of (i) a ceiling
value of MmBTU $6.50 — and Bbl — $45.00 of Proved Developed Producing Reserves as of such
date of determination, without adjustment to reflect the Basis Differential with respect to
Hydrocarbons produced from the Eligible Proved Developed Producing Reserves of the Pledging
Subsidiaries and the Eligible Proved Developed Producing Reserves of the Partnerships and
the LLC, as determined by the Approved Engineer and approved by Agent, or (ii) (x) on the
basis of the contract price to the extent contracts exist or (y) in the event that contracts
do not exist, on the basis of the applicable NYMEX Price for the category of Proved
Developed Producing Reserves as of such date of determination, adjusting such price to
reflect the appropriate Basis Differential with respect to Hydrocarbons produced from the
Eligible Proved Developed Producing Reserves of the Pledging Subsidiaries and the Eligible
Proved Developed Producing Reserves of the Partnerships and the LLC, as determined by the
Approved Engineer and approved by Agent; and

     (b) the present value of each such Net Operating Income amount shall be determined by
discounting such Monthly Net Operating Income from the month in which it is expected to be
received, on a monthly basis, to such date of determination at a rate of 10% per annum.

     “Real Property” means any estates or interests in real property now owned or hereafter
acquired by Borrower or any of its Subsidiaries and the improvements thereto.

     “Record” means information that is inscribed on a tangible medium or which is stored in an
electronic or other medium and is retrievable in perceivable form.

     “Release” means a “release”, as such term is defined in CERCLA.

     “Remedial Action” means any action under Environmental Laws required to (a) clean up, remove,
remediate, contain, treat, monitor, assess, evaluate, dispose of, abate, or in any other way
address pollutants (including Hazardous Materials) in the indoor or outdoor environment, (b)
prevent the Release or threat of a Release or minimize the further Release of pollutants, or (c)
investigate and determine if a remedial response is needed and to design such a response and any
post-remedial investigation, monitoring, operation, and maintenance and care.

     “Replacement Lender” has the meaning set forth in Section 15.2(a).

     “Report” has the meaning set forth in Section 16.17.

     “Required Lenders” means, at any time, (a) Agent, and (b) Lenders whose aggregate Pro Rata
Shares (calculated under clause (d) of the definition of Pro Rata Shares) equal or exceed 66.67%.

     “Reserve Percentage” means, on any day, for any Lender, the maximum percentage prescribed by
the Board of Governors of the Federal Reserve System (or any successor Governmental Authority) for
determining the reserve requirements (including any basic, supplemental, marginal, or emergency
reserves) that are in effect on such date with respect to eurocurrency funding (currently referred
to as “eurocurrency liabilities”) of that Lender, but so long as such Lender is not required or
directed under applicable regulations to maintain such reserves, the Reserve Percentage shall be
zero.

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     “Reserve Report” means the Initial Reserve Report and any other report delivered pursuant to
Section 6.2, in form and substance satisfactory to the Agent, prepared at the sole cost and
expense of the Borrower by the Approved Engineer, which shall evaluate the oil and gas reserves
attributable to the Hydrocarbon Interests owned directly by Borrower, its Subsidiaries, the LLC and
the Partnerships, as of the immediately preceding January 1 or July 1. Each Reserve Report shall
set forth volumes, projections of the future rate of production, Hydrocarbon prices, escalation
rates, discount rate assumptions, and net proceeds of production, present value of the net proceeds
of production, estimated costs of Remedial Action, operating expenses and capital expenditures, in
each case based upon updated economic assumptions reasonably acceptable to the Agent.

     “Revolver Commitment” means, with respect to each Lender, its Revolver Commitment, and, with
respect to all Lenders, their Revolver Commitments, in each case as such Dollar amounts are set
forth beside such Lender’s name under the applicable heading on Schedule C-1 or on the
signature page of the Assignment and Acceptance pursuant to which such Lender became a Lender
hereunder, as such amounts may be reduced or increased from time to time pursuant to assignments
made in accordance with the provisions of Section 14.1.

     “Revolver Usage” means, as of any date of determination, the sum of (a) the then extant amount
of outstanding Advances, plus (b) the then extant amount of the Letter of Credit Usage.

     “Risk Participation Liability” means, as to each Letter of Credit, all reimbursement
obligations of Borrower to the Issuing Lender with respect to an L/C Undertaking, consisting of (a)
the amount available to be drawn or which may become available to be drawn, (b) all amounts that
have been paid by the Issuing Lender to the Underlying Issuer to the extent not reimbursed by
Borrower, whether by the making of an Advance or otherwise, and (c) all accrued and unpaid
interest, fees, and expenses payable with respect thereto.

     “SEC” means the United States Securities and Exchange Commission and any successor thereto.

     “Securities Account” means a “securities account” as that term is defined in the Code.

     “Security Documents” means the Mortgages, the Partnership Pledge Agreements, the Borrower’s
Security Agreement, the LLC Pledge Agreement and all other security documents hereafter delivered
to Agent granting a Lien on any asset of any Person to secure the Obligations.

     “Solvent” means, with respect to any Person on a particular date, that such Person is not
insolvent (as such term is defined in the Uniform Fraudulent Transfer Act).

     “Stock” means all shares, options, warrants, interests, participations, or other equivalents
(regardless of how designated) of or in a Person, whether voting or nonvoting, including common
stock, preferred stock, or any other “equity security” (as such term is defined in Rule 3a11-1 of
the General Rules and Regulations promulgated by the SEC under the Exchange Act).

     “Subsidiary” of a Person means a corporation, limited liability company, or other entity
(other than Partnerships) in which that Person directly or indirectly owns or controls the shares
of Stock having ordinary voting power to elect a majority of the board of directors (or appoint
other comparable managers) of such corporation, limited liability company, or other entity.

     “Subordination Agreement” means an agreement executed by a Person holding or having the right
to a Lien on any Collateral subordinating such Lien to the Agent’s Liens, all in form, scope, and
substance satisfactory to Agent.

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     “Swing Lender” means Foothill or any other Lender that, at the request of Borrower and with
the consent of Agent agrees, in such Lender’s sole discretion, to become the Swing Lender under
Section 2.3(d).

     “Swing Loan” has the meaning set forth in Section 2.3(d)(i).

     “Taxes” means any and all present or future taxes, levies, imposts, duties, deductions,
charges or withholdings imposed by any Governmental Authority.

     “Term Loan” means, collectively, the Initial Term Loan and the Additional Term Loan.

     “Term Loan Amount” means, collectively, the Initial Term Loan Amount and the Additional Term
Loan Amount.

     “Term Loan Commitment” means, with respect to each Lender, its Term Loan Commitment, and, with
respect to all Lenders, their Term Loan Commitments, in each case as such Dollar amounts are set
forth beside such Lender’s name under the applicable heading on Schedule C-1 or in the
Assignment and Acceptance pursuant to which such Lender became a Lender hereunder, as such amounts
may be reduced or increased from time to time pursuant to assignments made in accordance with the
provisions of Section 14.1.

     “Total Commitment” means, with respect to each Lender, its Total Commitment, and, with respect
to all Lenders, their Total Commitments, in each case as such Dollar amounts are set forth beside
such Lender’s name under the applicable heading on Schedule C-1 attached hereto or on the
signature page of the Assignment and Acceptance pursuant to which such Lender became a Lender
hereunder, as such amounts may be reduced or increased from time to time pursuant to assignment
made in accordance with the provisions of Section 14.1.

     “Total Proved Developed Producing Reserves” means the Proved Developed Producing Reserves of
the Partnerships and the LLC and the Proved Developed Producing Reserves of the Pledging
Subsidiaries.

     “Total Usage” means, as of any date of determination, the sum of (a) the then extant amount of
outstanding Advances, plus (b) the then extant amount of the Letter of Credit Usage, plus (c) the
then extant amount of the Term Loan.

     “Total Value” means an amount equal to the sum of (a) with respect to the LLC and each
Partnership, the PV-10 Value of the Eligible Proved Developed Producing Reserves of the
Partnerships and the LLC multiplied (i) in the case of the Partnerships, by the general partnership
interest of the applicable Pledging Subsidiary in such Partnership, and (ii) in the case of the LLC
by the membership interest of A&W in the LLC plus (b) with respect to the Pledging Subsidiaries,
the PV-10 Value of the Eligible Proved Developed Producing Reserves of the Pledging Subsidiaries.

     “Underlying Issuer” means a third Person which is the beneficiary of an L/C Undertaking and
which has issued a letter of credit at the request of Lender for the benefit of Borrower.

     “Underlying Letter of Credit” means a letter of credit that has been issued by an Underlying
Issuer.

     “United States” means the United States of America.

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     “Unrestricted Subsidiary” means ECA Trans LLC, a Subsidiary of Borrower; provided, however,
that if the Borrower receives the prior written consent of Agent (not to be unreasonably withheld),
the Board of Directors of the Borrower may designate any Subsidiary of the Borrower (including any
newly acquired or newly formed Subsidiary or a Person becoming a Subsidiary through permitted
merger, consolidation or Investment therein) to be an Unrestricted Subsidiary, but only if (a) such
Subsidiary does not own any capital stock of, or own or hold any Lien on any property of, any other
Subsidiary of the Borrower which is not a Subsidiary of the Subsidiary to be so designated or
otherwise an Unrestricted Subsidiary; (b) all the Indebtedness of such Subsidiary shall, at the
date of designation, and will at all times thereafter; consist of Non-Recourse Debt; (c) such
Subsidiary, either alone or in the aggregate with all other Unrestricted Subsidiaries, does not own
or operate, directly or indirectly, any material portion of the business of the Borrower and its
Subsidiaries; (d) such Subsidiary does not, directly or indirectly, own any Indebtedness of or
equity interest in, and has no Investments in, the Borrower or any Subsidiary (other than an
Unrestricted Subsidiary); (e) such Subsidiary is a Person with respect to which neither the
Borrower nor any of its Subsidiaries (other than an Unrestricted Subsidiary) has any direct or
indirect obligation; (1) to subscribe for additional equity interests or (2) to maintain or
preserve such Person’s financial condition or to cause such Person to achieve any specified levels
of operating results; and (f) on the date such Subsidiary is designated an Unrestricted Subsidiary,
such Subsidiary is not a party to any agreement, contract, arrangement or understanding with the
Borrower or any Subsidiary (other than an Unrestricted Subsidiary) with terms substantially less
favorable to the Borrower than those that might have been obtained from Persons who are not
Affiliates of the Borrower. Any such designation by the Board of Directors of the Borrower shall
be evidenced to the Agent by delivering to the Agent a resolution of the Board of Directors of the
Borrower giving effect to such designation and an Officer’s Certificate certifying that such
designation complied with the foregoing conditions. If, at any time, any Unrestricted Subsidiary
would fail to meet the foregoing requirements as an Unrestricted Subsidiary, it shall thereafter
cease to be an Unrestricted Subsidiary for purposes of this Agreement and the other Loan Documents
and any Indebtedness of such Subsidiary shall be deemed to be incurred as of such date. The Board
of Directors of the Borrower may designate any Unrestricted Subsidiary to be a Subsidiary other
than an Unrestricted Subsidiary; provided, that immediately after giving effect to such
designation, no Default or Event of Default shall have occurred and be continuing or would occur as
a consequence thereof and no additional Indebtedness (excluding Indebtedness permitted under
Section 7.1) would be incurred by the Borrower on a pro forma basis taking into account
such designation; such designation shall be evidenced by delivering to the Agent a resolution of
the Board of Directors of the Borrower giving effect to such designation and an Officer’s
Certificate certifying that such designation complied with the foregoing conditions.

     “Voidable Transfer” has the meaning set forth in Section 17.7.

     “Wells” means any existing oil or gas well which is producing Hydrocarbons from the Mortgaged
Properties.

     “Wells Fargo” means Wells Fargo Bank, National Association, a national banking association.

     1.2. Accounting Terms. All accounting terms not specifically defined herein shall be
construed in accordance with GAAP. When used herein, the term “financial statements” shall include
the notes and schedules thereto. Whenever the term “Borrower” is used in respect of a financial
covenant or a related definition, it shall be understood to mean Borrower and its Subsidiaries on a
consolidated basis unless the context clearly requires otherwise.

     1.3. Code. Any terms used in this Agreement that are defined in the Code shall be
construed and defined as set forth in the Code unless otherwise defined herein; provided,
however, that to the extent

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that the Code is used to define any term herein and such term is defined differently in
different Articles of the Code, the definition of such term contained in Article 9 shall govern.

     1.4. Construction. Unless the context of this Agreement or any other Loan Document
clearly requires otherwise, references to the plural include the singular, references to the
singular include the plural, the terms “includes” and “including” are not limiting, and the term
“or” has, except where otherwise indicated, the inclusive meaning represented by the phrase
“and/or.” The words “hereof,” “herein,” “hereby,” “hereunder,” and similar terms in this Agreement
or any other Loan Document refer to this Agreement or such other Loan Document, as the case may be,
as a whole and not to any particular provision of this Agreement or such other Loan Document, as
the case may be. Section, subsection, clause, schedule, and exhibit references herein are to this
Agreement unless otherwise specified. Any reference in this Agreement or in the other Loan
Documents to any agreement, instrument, or document shall include all alterations, amendments,
changes, extensions, modifications, renewals, replacements, substitutions, joinders, and
supplements, thereto and thereof, as applicable (subject to any restrictions on such alterations,
amendments, changes, extensions, modifications, renewals, replacements, substitutions, joinders,
and supplements set forth herein). Any reference herein to the satisfaction or repayment in full
of the Obligations shall mean the repayment in full in cash (or cash collateralization in
accordance with the terms hereof) of all Obligations other than contingent indemnification
Obligations and other than any Bank Product Obligations that, at such time, are allowed by the
applicable Bank Product Provider to remain outstanding and are not required to be repaid or cash
collateralized pursuant to the provisions of this Agreement. Any reference herein to any Person
shall be construed to include such Person’s successors and assigns. Any requirement of a writing
contained herein or in the other Loan Documents shall be satisfied by the transmission of a Record
and any Record transmitted shall constitute a representation and warranty as to the accuracy and
completeness of the information contained therein.

     1.5. Schedules and Exhibits. All of the schedules and exhibits attached to this
Agreement shall be deemed incorporated herein by reference.

2. LOAN AND TERMS OF PAYMENT

     2.1. Revolver Advances.

     (a) Subject to the terms and conditions of this Agreement, and during the term of this
Agreement, each Lender with a Revolver Commitment agrees (severally, not jointly or jointly
and severally) to make advances (“Advances”) to Borrower in an amount at any one time
outstanding not to exceed such Lender’s Pro Rata Share of an amount equal to the lesser of
(i) the Maximum Revolver Amount less the Letter of Credit Usage, or (ii) the Borrowing Base
then in effect less the Letter of Credit Usage, of which there is currently outstanding
[$                    ]. For purposes of this Agreement and subject to the provisions of Section
2.16 of this Agreement, “Borrowing Base,” as of any date of determination, shall mean
the result of:

     (w) an amount equal to 65% of the PV-10 Value of the Eligible Proved Developed
Producing Reserves of the Pledging Subsidiaries directly owned by the Pledging
Subsidiaries, as reflected in the most recent report delivered in accordance with
Section 6.2, plus

     (x) an amount with respect to each Partnership equal to 65% of the PV-10 Value
of the Eligible Proved Developed Producing Reserves directly owned by such
Partnership multiplied by the general partnership interest of the Pledging
Subsidiary in such partnership, plus

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     (y) an amount with respect to the LLC equal to 65% of the PV-10 Value of the
Eligible Proved Developed Producing Reserves directly owned by the LLC multiplied by
the membership interest of A&W in the LLC, minus

     (z) the sum of (i) the Bank Products Reserves, and (ii) the aggregate amount of
reserves, if any, established by Lender under Section 2.1(b).

     (b) Anything to the contrary in this Section 2.1 notwithstanding, the Agent
shall have the right to establish reserves in such amounts, and with respect to such
matters, as Agent, in its Permitted Discretion, shall deem necessary or appropriate against
the Borrowing Base including, but not limited to, reserves based upon (i) past due or
accrued taxes or other governmental charges including ad valorem, personal property,
production, severance, and other taxes which may have priority over the Liens or security
interests of Agent in the Collateral; (ii) Liens relating to the Collateral in favor of
third Persons; (iii) deposits which are due or scheduled to become due during the
immediately following 180 day period under deposit, escrow or other arrangements concerning
costs, expenses and liabilities relating to the plugging and abandonment of the Borrowing
Base Properties; (iv) estimates of present or future operating costs and expenses, royalty
and overriding payments and other costs and expenses associated with the maintenance and
operation of the Borrowing Base Properties; (v) estimates of present and future costs,
expenses, deposits and liabilities related to the plugging and abandonment of the Borrowing
Base Properties (net of the amount thereof which has been taken into account in the most
recent Reserve Report), (vi) without duplication of the foregoing, amounts owing by
Borrower, any of its Subsidiaries, the LLC or the Partnerships to any Person to the extent
secured by a Lien on, or trust (constructive or otherwise) over, any of the Collateral
(including proceeds thereof or collections from the sale of Hydrocarbons or Hydrocarbon
Interests which may from time to time come into the possession of Agent or the Lender Group
or its agents), which Lien or trust, in the determination of Agent, has a reasonable
possibility of having a priority superior to the Agent’s Liens (such as landlord liens, ad
valorem taxes, production taxes, severance taxes, sales taxes, collections attributable to
the sale of Hydrocarbons or Hydrocarbon Interests of Persons other than Borrower or any of
its Subsidiaries) in and to such item of Collateral, proceeds or collection, and (vii)
Hydrocarbon Interests Hedging Agreement Reserves.

     (c) The Lenders with Revolver Commitments shall have no obligation to make additional
Advances hereunder to the extent such additional Advances would cause the Revolver Usage to
exceed the Maximum Revolver Amount.

     (d) Amounts borrowed pursuant to this Section may be repaid and, subject to the terms
and conditions of this Agreement, reborrowed at any time during the term of this Agreement.

     (e) The outstanding principal amount of the Advances, together with all unpaid interest
accrued thereon, shall be due and payable on the Maturity Date or, if earlier, on the date
on which they are declared due and payable pursuant to the terms of this Agreement.

     2.2. Term Loan. Borrower hereby represents and warrants that Lenders have made the
Initial Term Loan in the principal amount equal to the Initial Term Loan Amount to Borrower for the
purposes set forth in Section 6.20 hereof. Borrower represents and warrants that, as of
the date hereof, the unpaid principal amount of the Initial Term Loan is [$                    ] and such
amount is unconditionally owed by Borrower to Lenders without offset, defense or counterclaim of
any kind, nature or description whatsoever. Subject to the terms and conditions of this Agreement,
each Lender with a Term Loan Commitment agrees (severally, not jointly or jointly and severally) to
make, on or about the date of this

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Agreement, the Additional Term Loan to Borrower in an amount equal to such Lender’s Pro Rata
Share of the Additional Term Loan Amount. The Term Loan shall be repaid on the following dates and
in the following amounts:

	 	 	 	 	 
	Date	 	Installment Amount
	July 10, 2008
	 	$	1,000,000.00	 
	July 10, 2009
	 	$	1,000,000.00	 
	July 10, 2010
	 	$	1,000,000.00	 
	July 10, 2011
	 	$	1,000,000.00	 

The outstanding unpaid principal balance and all accrued and unpaid interest under the Term Loan
shall be due and payable on the earliest of (a) the Maturity Date, (b) the date of the acceleration
of the Term Loan in accordance with the terms hereof, and (c) the date of termination of this
Agreement, whether by its terms, by prepayment, or by acceleration. All amounts outstanding under
the Term Loan shall constitute Obligations.

     2.3. Borrowing Procedures.

     (a) Procedure for Borrowing. Each Borrowing shall be made by an irrevocable
written request by an Authorized Person delivered to Agent. Such notice must be received by
Agent no later than 10:00 a.m. (California time) on the Business Day prior to the date that
is the requested Funding Date specifying (i) the amount of such Borrowing, and (ii) the
requested Funding Date, which shall be a Business Day; provided, however,
that in the case of a request for a Swing Loan in an amount of $5,000,000.00, or less, such
notice will be timely received if it is received by Agent no later than 10:00 a.m.
(California time) on the Business Day that is the requested Funding Date) specifying (i) the
amount of such Borrowing, and (ii) the requested Funding Date, which shall be a Business
Day. At Agent’s election, in lieu of delivering the above-described written request, any
Authorized Person may give Agent telephonic notice of such request by the required time. In
such circumstances, Borrower agrees that any such telephonic notice will be confirmed in
writing within 24 hours of the giving of such telephonic notice, but the failure to provide
such written confirmation shall not affect the validity of the request.

     (b) Agent’s Election. Promptly after receipt of a request for a Borrowing
pursuant to Section 2.3(a), Agent shall elect, in its discretion, (i) to have the
terms of Section 2.3(c) apply to such requested Borrowing, or (ii) if the Borrowing
is for an Advance, to request Swing Lender to make a Swing Loan pursuant to the terms of
Section 2.3(d) in the amount of the requested Borrowing; provided,
however, that if Swing Lender declines in its sole discretion to make a Swing Loan
pursuant to Section 2.3(d), Agent shall elect to have the terms of Section
2.3(c) apply to such requested Borrowing.

     (c) Making of Loans.

     (i) In the event that Agent shall elect to have the terms of this Section
2.3(c) apply to a requested Borrowing as described in Section 2.3(b),
then promptly after receipt of a request for a Borrowing pursuant to Section
2.3(a), Agent shall notify the Lenders, not later than 1:00 p.m. (California
time) on the Business Day immediately

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preceding the Funding Date applicable thereto, by telecopy, telephone, or other
similar form of transmission, of the requested Borrowing. Each Lender shall make
the amount of such Lender’s Pro Rata Share of the requested Borrowing available to
Agent in immediately available funds, to Agent’s Account, not later than 10:00 a.m.
(California time) on the Funding Date applicable thereto. After Agent’s receipt of
the proceeds of such Advances (or the Term Loan, as applicable), upon satisfaction
of the conditions precedent set forth in Section 3 hereof, Agent shall make
the proceeds thereof available to Borrower on the applicable Funding Date by
transferring immediately available funds equal to such proceeds received by Agent to
Borrower’s Designated Account; provided, however, that, subject to
the provisions of Section 2.3(i), Agent shall not request any Lender to
make, and no Lender shall have the obligation to make, any Advance (or its portion
of the Term Loan) if Agent shall have actual knowledge that (1) one or more of the
applicable conditions precedent set forth in Section 3 will not be satisfied
on the requested Funding Date for the applicable Borrowing unless such condition has
been waived, or (2) the requested Borrowing would exceed the Availability on such
Funding Date.

     (ii) Unless Agent receives notice from a Lender on or prior to the date hereof
or, with respect to any Borrowing after the date hereof, at least 1 Business Day
prior to the date of such Borrowing, that such Lender will not make available as and
when required hereunder to Agent for the account of Borrower the amount of that
Lender’s Pro Rata Share of the Borrowing, Agent may assume that each Lender has made
or will make such amount available to Agent in immediately available funds on the
Funding Date and Agent may (but shall not be so required), in reliance upon such
assumption, make available to Borrower on such date a corresponding amount. If and
to the extent any Lender shall not have made its full amount available to Agent in
immediately available funds and Agent in such circumstances has made available to
Borrower such amount, that Lender shall on the Business Day following such Funding
Date make such amount available to Agent, together with interest at the Defaulting
Lender Rate for each day during such period. A notice submitted by Agent to any
Lender with respect to amounts owing under this subsection shall be conclusive,
absent manifest error. If such amount is so made available, such payment to Agent
shall constitute such Lender’s Advance (or portion of the Term Loan, as applicable)
on the date of Borrowing for all purposes of this Agreement. If such amount is not
made available to Agent on the Business Day following the Funding Date, Agent will
notify Borrower of such failure to fund and, upon demand by Agent, Borrower shall
pay such amount to Agent for Agent’s account, together with interest thereon for
each day elapsed since the date of such Borrowing, at a rate per annum equal to the
interest rate applicable at the time to the Advances (or portion of the Term Loan,
as applicable) composing such Borrowing. The failure of any Lender to make any
Advance (or portion of the Term Loan, as applicable) on any Funding Date shall not
relieve any other Lender of any obligation hereunder to make an Advance (or portion
of the Term Loan, as applicable) on such Funding Date, but no Lender shall be
responsible for the failure of any other Lender to make the Advance (or portion of
the Term Loan, as applicable) to be made by such other Lender on any Funding Date.

     (iii) Agent shall not be obligated to transfer to a Defaulting Lender any
payments made by Borrower to Agent for the Defaulting Lender’s benefit, and, in the
absence of such transfer to the Defaulting Lender, Agent shall transfer any such
payments to each other non-Defaulting Lender member of the Lender Group ratably in
accordance with their Commitments (but only to the extent that such Defaulting
Lender’s Advance was funded by the other members of the Lender Group) or, if so
directed by Borrower

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and if no Default or Event of Default has occurred and is continuing (and to
the extent such Defaulting Lender’s Advance was not funded by the Lender Group),
retain same to be re-advanced to Borrower as if such Defaulting Lender had made
Advances to Borrower. Subject to the foregoing, Agent may hold and, in its
Permitted Discretion, re-lend to Borrower for the account of such Defaulting Lender
the amount of all such payments received and retained by Agent for the account of
such Defaulting Lender. Solely for the purposes of voting or consenting to matters
with respect to the Loan Documents, such Defaulting Lender shall be deemed not to be
a “Lender” and such Lender’s Commitment shall be deemed to be zero. This Section
shall remain effective with respect to such Lender until (x) the Obligations under
this Agreement shall have been declared or shall have become immediately due and
payable, (y) the non-Defaulting Lenders, Agent, and Borrower shall have waived such
Defaulting Lender’s default in writing, or (z) the Defaulting Lender makes its Pro
Rata Share of the applicable Advance and pays to Agent all amounts owing by
Defaulting Lender in respect thereof. The operation of this Section shall not be
construed to increase or otherwise affect the Commitment of any Lender, to relieve
or excuse the performance by such Defaulting Lender or any other Lender of its
duties and obligations hereunder, or to relieve or excuse the performance by
Borrower of its duties and obligations hereunder to Agent or to the Lenders other
than such Defaulting Lender. Any such failure to fund by any Defaulting Lender
shall constitute a material breach by such Defaulting Lender of this Agreement and
shall entitle Borrower at its option, upon written notice to Agent, to arrange for a
substitute Lender to assume the Commitment of such Defaulting Lender, such
substitute Lender to be acceptable to Agent. In connection with the arrangement of
such a substitute Lender, the Defaulting Lender shall have no right to refuse to be
replaced hereunder, and agrees to execute and deliver a completed form of Assignment
and Acceptance Agreement in favor of the substitute Lender (and agrees that it shall
be deemed to have executed and delivered such document if it fails to do so) subject
only to being repaid its share of the outstanding Obligations (other than Bank
Product Obligation, but including an assumption of its Pro Rata Share of the Risk
Participation Liability) without any premium or penalty of any kind whatsoever;
provided further, however, that any such assumption of the
Commitment of such Defaulting Lender shall not be deemed to constitute a waiver of
any of the Lender Group’s or Borrower’s rights or remedies against any such
Defaulting Lender arising out of or in relation to such failure to fund.

     (d) Making of Swing Loans.

     (i) In the event Agent shall elect, with the consent of Swing Lender, as a
Lender, to have the terms of this Section 2.3(d) apply to a requested
Borrowing as described in Section 2.3(b), Swing Lender as a Lender shall
make such Advance in the amount of such Borrowing (any such Advance made solely by
Swing Lender as a Lender pursuant to this Section 2.3(d) being referred to
as a “Swing Loan” and such Advances being referred to collectively as “Swing Loans”)
available to Borrower on the Funding Date applicable thereto by transferring
immediately available funds to Borrower’s Designated Account. Each Swing Loan shall
be deemed to be an Advance hereunder and shall be subject to all the terms and
conditions applicable to other Advances, except that no such Swing Loan shall be
eligible to be a LIBOR Rate Loan and all payments on any Swing Loan shall be payable
to Swing Lender as a Lender solely for its own account (and for the account of the
holder of any participation interest with respect to such Swing Loan). Subject to
the provisions of Section 2.3(i), Agent shall not request Swing Lender as a
Lender to make, and Swing Lender as a Lender shall not make, any Swing Loan if

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Agent has actual knowledge that (i) one or more of the applicable conditions
precedent set forth in Section 3 will not be satisfied on the requested
Funding Date for the applicable Borrowing unless such condition has been waived, or
(ii) the requested Borrowing would exceed the Availability on such Funding Date.
Swing Lender as a Lender shall not otherwise be required to determine whether the
applicable conditions precedent set forth in Section 3 have been satisfied
on the Funding Date applicable thereto prior to making, in its sole discretion, any
Swing Loan.

     (ii) The Swing Loans shall be secured by the Agent’s Liens, constitute
Obligations hereunder, and bear interest at the rate applicable from time to time to
Advances that are Base Rate Loans.

          (e) Agent Advances.

     (i) Agent hereby is authorized by Borrower and the Lenders, from time to time
in Agent’s sole discretion, (1) after the occurrence and during the continuance of a
Default or an Event of Default, or (2) at any time that any of the other applicable
conditions precedent set forth in Section 3 have not been satisfied, to make
Advances to Borrower on behalf of the Lenders that Agent, in its Permitted
Discretion deems necessary or desirable (A) to preserve or protect the Collateral,
or any portion thereof, (B) to enhance the likelihood of repayment of the
Obligations, or (C) to pay any other amount chargeable to Borrower pursuant to the
terms of this Agreement, including Lender Group Expenses and the costs, fees, and
expenses described in Section 10 (any of the Advances described in this
Section 2.3(e) shall be referred to as “Agent Advances”). Each Agent
Advance is an Advance hereunder and shall be subject to all the terms and conditions
applicable to other Advances, except that no such Agent Advance shall be eligible to
be a LIBOR Rate Loan and all payments thereon shall be payable to Agent solely for
its own account (and for the account of the holder of any participation interest
with respect to such Agent Advance).

     (ii) The Agent Advances shall be repayable on demand and secured by the Agent’s
Liens granted to Agent under the Loan Documents, shall constitute Advances and
Obligations hereunder, and shall bear interest at the rate applicable from time to
time to Advances that are Base Rate Loans.

     (f) Settlement. It is agreed that each Lender’s funded portion of the Advances
is intended by the Lenders to equal, at all times, such Lender’s Pro Rata Share of the
outstanding Advances. Such agreement notwithstanding, Agent, Swing Lender, and the other
Lenders agree (which agreement shall not be for the benefit of or enforceable by Borrower)
that in order to facilitate the administration of this Agreement and the other Loan
Documents, settlement among them as to the Advances, the Swing Loans, and the Agent Advances
shall take place on a periodic basis in accordance with the following provisions:

     (i) Agent shall request settlement (“Settlement”) with the Lenders on a weekly
basis, or on a more frequent basis if so determined by Agent, (1) on behalf of Swing
Lender, with respect to each outstanding Swing Loan, (2) for itself, with respect to
each Agent Advance, and (3) with respect to Collections received, as to each by
notifying the Lenders by telecopy, telephone, or other similar form of transmission,
of such requested Settlement, no later than 2:00 p.m. (California time) on the
Business Day immediately prior to the date of such requested Settlement (the date of
such requested Settlement being the “Settlement Date”). Such notice of a Settlement
Date shall include

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a summary statement of the amount of outstanding Advances, Swing Loans, and
Agent Advances for the period since the prior Settlement Date. Subject to the terms
and conditions contained herein (including Section 2.3(c)(iii)): (y) if a
Lender’s balance of the Advances (including Swing Loans and Agent Advances) exceeds
such Lender’s Pro Rata Share of the Advances (including Swing Loans and Agent
Advances) as of a Settlement Date, then Agent shall, by no later than 12:00 p.m.
(California time) on the Settlement Date, transfer in immediately available funds to
the account of such Lender (as such Lender may designate), an amount such that each
such Lender shall, upon receipt of such amount, have as of the Settlement Date, its
Pro Rata Share of the Advances (including Swing Loans and Agent Advances) and (z) if
a Lender’s balance of the Advances, Swing Loans, and Agent Advances is less than
such Lender’s Pro Rata Share of the Advances (including Swing Loans and Agent
Advances) as of a Settlement Date, such Lender shall no later than 12:00 p.m.
(California time) on the Settlement Date transfer in immediately available funds to
the Agent’s Account, an amount such that each such Lender shall, upon transfer of
such amount, have as of the Settlement Date, its Pro Rata Share of the Advances,
Swing Loans, and Agent Advances. Such amounts made available to Agent under clause
(z) of the immediately preceding sentence shall be applied against the amounts of
the applicable Swing Loan or Agent Advance and, together with the portion of such
Swing Loan or Agent Advance representing Swing Lender’s Pro Rata Share thereof,
shall constitute Advances of such Lenders. If any such amount is not made available
to Agent by any Lender on the Settlement Date applicable thereto to the extent
required by the terms hereof, Agent shall be entitled to recover for its account
such amount on demand from such Lender together with interest thereon at the
Defaulting Lender Rate.

     (ii) In determining whether a Lender’s balance of the Advances, Swing Loans,
and Agent Advances is less than, equal to, or greater than such Lender’s Pro Rata
Share of the Advances, Swing Loans, and Agent Advances as of a Settlement Date,
Agent shall, as part of the relevant Settlement, apply to such balance the portion
of payments actually received in good funds by Agent with respect to principal,
interest, fees payable by Borrower and allocable to the Lenders hereunder, and
proceeds of Collateral. To the extent that a net amount is owed to any such Lender
after such application, such net amount shall be distributed by Agent to that Lender
as part of such next Settlement.

     (iii) Between Settlement Dates, Agent, to the extent no Agent Advances or Swing
Loans are outstanding, may pay over to Swing Lender any payments received by Agent,
that in accordance with the terms of this Agreement would be applied to the
reduction of the Advances, for application to Swing Lender’s Pro Rata Share of the
Advances. If, as of any Settlement Date, Collections received since the then
immediately preceding Settlement Date have been applied to Swing Lender’s Pro Rata
Share of the Advances other than to Swing Loans, as provided for in the previous
sentence, Swing Lender shall pay to Agent for the accounts of the Lenders, and Agent
shall pay to the Lenders, to be applied to the outstanding Advances of such Lenders,
an amount such that each Lender shall, upon receipt of such amount, have, as of such
Settlement Date, its Pro Rata Share of the Advances. During the period between
Settlement Dates, Swing Lender with respect to Swing Loans, Agent with respect to
Agent Advances, and each Lender (subject to the effect of agreements between Agent
and individual Lenders) with respect to the Advances other than Swing Loans and
Agent Advances, shall be entitled to interest at the applicable rate or rates
payable under this Agreement on the daily amount of funds employed by Swing Lender,
Agent, or the Lenders, as applicable.

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     (g) Notation. Agent shall record on its books the principal amount of the
Advances (or portion of the Term Loan, as applicable) owing to each Lender, including the
Swing Loans owing to Swing Lender, and Agent Advances owing to Agent, and the interests
therein of each Lender, from time to time and such records shall, absent manifest error,
conclusively be presumed to be correct and accurate. In addition, each Lender is
authorized, at such Lender’s option, to note the date and amount of each payment or
prepayment of principal of such Lender’s Advances (or portion of the Term Loan, as
applicable) in its books and records, including computer records, such books and records
constituting conclusive evidence, absent manifest error, of the accuracy of the information
contained therein. There shall be no promissory notes evidencing the payment obligations of
Borrower to Lenders.

     (h) Lenders’ Failure to Perform. All Advances (other than Swing Loans and
Agent Advances) shall be made by the Lenders contemporaneously and in accordance with their
Pro Rata Shares. It is understood that (i) no Lender shall be responsible for any failure
by any other Lender to perform its obligation to make any Advance (or other extension of
credit) hereunder, nor shall any Commitment of any Lender be increased or decreased as a
result of any failure by any other Lender to perform its obligations hereunder, and (ii) no
failure by any Lender to perform its obligations hereunder shall excuse any other Lender
from its obligations hereunder.

     (i) Optional Overadvances. Any contrary provision of this Agreement
notwithstanding, the Lenders hereby authorize Agent or Swing Lender, as applicable, and
Agent or Swing Lender, as applicable, may, but is not obligated to, knowingly and
intentionally, continue to make Advances (including Swing Loans) to Borrower notwithstanding
that an Overadvance exists or thereby would be created, so long as (i) after giving effect
to such Advances (including a Swing Loan), the outstanding Revolver Usage does not exceed
the Borrowing Base by more than $5,000,000.00, (ii) after giving effect to such Advances
(including a Swing Loan) the outstanding Revolver Usage (except for and excluding amounts
charged to the Loan Account for interest, fees, or Lender Group Expenses) does not exceed
the Maximum Revolver Amount, and (iii) at the time of the making of any such Advance
(including a Swing Loan), Agent does not believe, in good faith, that the Overadvance
created by such Advance will be outstanding for more than 90 days. The foregoing provisions
are for the exclusive benefit of Agent, Swing Lender, and the Lenders and are not intended
to benefit Borrower in any way. The Advances and Swing Loans, as applicable, that are made
pursuant to this Section 2.3(i) shall be subject to the same terms and conditions as
any other Advance or Swing Loan, as applicable, except that they shall not be eligible for
the LIBOR Option and the rate of interest applicable thereto shall be the rate applicable to
Advances that are Base Rate Loans under Section 2.6(c) hereof without regard to the
presence or absence of a Default or Event of Default.

     (i) In the event Agent obtains actual knowledge that the Revolver Usage exceeds
the amounts permitted by the preceding paragraph, regardless of the amount of, or
reason for, such excess, Agent shall notify Lenders as soon as practicable (and
prior to making any (or any additional) intentional Overadvances (except for and
excluding amounts charged to the Loan Account for interest, fees, or Lender Group
Expenses) unless Agent determines that prior notice would result in imminent harm to
the Collateral or its value), and the Lenders with Revolver Commitments thereupon
shall, together with Agent, jointly determine the terms of arrangements that shall
be implemented with Borrower and intended to reduce, within a reasonable time, the
outstanding principal amount of the Advances to Borrower to an amount permitted by
the preceding paragraph. In the event Agent or any Lender disagrees over the terms
of reduction or repayment of any Overadvance, the terms of reduction or repayment
thereof shall be implemented according to the determination of the Required Lenders.

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     (ii) Each Lender with a Revolver Commitment shall be obligated to settle with
Agent as provided in Section 2.3(f) for the amount of such Lender’s Pro Rata
Share of any unintentional Overadvances by Agent reported to such Lender, any
intentional Overadvances made as permitted under this Section 2.3(i), and
any Overadvances resulting from the charging to the Loan Account of interest, fees,
or Lender Group Expenses.

     2.4. Payments.

     (a) Payments by Borrower.

     (i) Except as otherwise expressly provided herein, all payments by Borrower
shall be made to Agent’s Account for the account of the Lender Group and shall be
made in immediately available funds, no later than 11:00 a.m. (California time) on
the date specified herein. Any payment received by Agent later than 11:00 a.m.
(California time), shall be deemed to have been received on the following Business
Day and any applicable interest or fee shall continue to accrue until such following
Business Day.

     (ii) Unless Agent receives notice from Borrower prior to the date on which any
payment is due to the Lenders that Borrower will not make such payment in full as
and when required, Agent may assume that Borrower has made (or will make) such
payment in full to Agent on such date in immediately available funds and Agent may
(but shall not be so required), in reliance upon such assumption, distribute to each
Lender on such due date an amount equal to the amount then due such Lender. If and
to the extent Borrower does not make such payment in full to Agent on the date when
due, each Lender severally shall repay to Agent on demand such amount distributed to
such Lender, together with interest thereon at the Defaulting Lender Rate for each
day from the date such amount is distributed to such Lender until the date repaid.

     (b) Apportionment and Application.

     (i) Except as otherwise provided with respect to Defaulting Lenders and except
as otherwise provided in the Loan Documents (including letter agreements between
Agent and individual Lenders), aggregate principal and interest payments shall be
apportioned ratably among the Lenders (according to the unpaid principal balance of
the Obligations to which such payments relate held by each Lender) and payments of
fees and expenses (other than fees or expenses that are for Agent’s separate
account, after giving effect to any letter agreements between Agent and individual
Lenders) shall be apportioned ratably among the Lenders having a Pro Rata Share of
the type of Commitment or Obligation to which a particular fee relates. All
payments shall be remitted to Agent and all such payments (other than payments
received while no Default or Event of Default has occurred and is continuing and
which relate to the payment of principal or interest of specific Obligations or
which relate to the payment of specific fees), and all proceeds of Accounts or other
Collateral received by Agent, shall be applied as follows:

     A. first, to pay any Lender Group Expenses then due to Agent
under the Loan Documents, until paid in full,

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     B. second, to pay any Lender Group Expenses then due to the
Lenders under the Loan Documents, on a ratable basis, until paid in full,

     C. third, to pay any fees then due to Agent (for its separate
accounts, after giving effect to any letter agreements between Agent and the
individual Lenders) under the Loan Documents until paid in full,

     D. fourth, to pay any fees then due to any or all of the
Lenders (after giving effect to any letter agreements between Agent and
individual Lenders) under the Loan Documents, on a ratable basis, until paid
in full,

     E. fifth, to pay interest due in respect of all Agent Advances,
until paid in full,

     F. sixth, ratably to pay interest due in respect of the
Advances (other than Agent Advances), the Swing Loans, and the Term Loan
until paid in full,

     G. seventh, to pay the principal of all Agent Advances until
paid in full,

     H. eighth, ratably to pay all principal amounts then due and
payable (other than as a result of an acceleration thereof) with respect to
the Term Loan until paid in full,

     I. ninth, to pay the principal of all Swing Loans until paid in
full,

     J. tenth, so long as no Event of Default has occurred and is
continuing, and at Agent’s election (which election Agent agrees will not be
made if an Overadvance would be created thereby), to pay amounts then due
and owing in respect of Bank Product Obligations until paid in full,

     K. eleventh, so long as no Event of Default has occurred and is
continuing, to pay the principal of all Advances until paid in full,

     L. twelfth, so long as no Event of Default has occurred and is
continuing, to pay any other Obligations until paid in full,

     M. thirteenth, if an Event of Default has occurred and is
continuing, to pay amounts to Agent, to be held by Agent, for the benefit of
the Bank Product Providers, as cash collateral in an amount up to the amount
determined by Agent in its Permitted Discretion as the amount necessary to
secure the Bank Product Obligations,

     N. fourteenth, if an Event of Default has occurred and is
continuing, ratably (i) to pay the principal of all Advances until paid in
full, and (ii) to Agent, to be held by Agent, for the ratable benefit of
Issuing Lender and those Lenders having a Revolver Commitment, as cash
collateral in an amount up to 105% of the then extant Letter of Credit Usage
until paid in full,

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     O. fifteenth, if an Event of Default has occurred and is
continuing, to pay the outstanding principal balance of the Term Loan (in
the inverse order of the maturity of the installments due thereunder) until
the Term Loan is paid in full,

     P. sixteenth, if an Event of Default has occurred and is
continuing, to pay any other Obligations, and

     Q. seventeenth, to Borrower (to be wired to the Designated
Account) or such other Person entitled thereto under applicable law.

     (ii) Agent promptly shall distribute to each Lender, pursuant to the applicable
wire instructions received from each Lender in writing, such funds as it may be
entitled to receive, subject to a Settlement delay as provided in Section
2.3(f).

     (iii) In each instance, so long as no Default or Event of Default has occurred
and is continuing, Section 2.4(b) shall not be deemed to apply to any
payment made by Borrower to Agent specified by Borrower to be for the payment of
specific Obligations then due and payable (or prepayable) under any provision of
this Agreement.

     (iv) For purposes of the foregoing, “paid in full” means payment of all amounts
owing under the Loan Documents according to the terms thereof, including loan fees,
service fees, professional fees, interest (and specifically including interest
accrued after the commencement of any Insolvency Proceeding), default interest,
interest on interest, and expense reimbursements, whether or not any of the
foregoing would be or is allowed or disallowed in whole or in part in any Insolvency
Proceeding.

     (v) In the event of a direct conflict between the priority provisions of this
Section 2.4 and other provisions contained in any other Loan Document, it is
the intention of the parties hereto that such priority provisions in such documents
shall be read together and construed, to the fullest extent possible, to be in
concert with each other. In the event of any actual, irreconcilable conflict that
cannot be resolved as aforesaid, the terms and provisions of this Section
2.4 shall control and govern.

     2.5. Overadvances. If at any time or for any reason, the amount of Obligations (other
than Bank Product Obligations) owed by Borrower to the Agent and the Lender Group pursuant to
Sections 2.1, 2.2 and 2.12 is greater than an amount equal to the lower of (a) the Maximum
Loan Amount, or (b) the then current Borrowing Base (an “Overadvance”), Borrower, within five (5)
Business Days from the date of each such occurrence, shall notify the Agent that Borrower shall
take one of the following actions:

     (a) execute and deliver, and/or cause the Pledging Subsidiaries or any other Subsidiary
to execute and deliver to the Agent within sixty (60) days from and after the date of the
occurrence of such Overadvance, supplemental or additional Mortgages, in form and substance
satisfactory to the Agent and its counsel, securing payment of the Obligations and covering
Oil and Gas Properties directly owned by Borrower, the Pledging Subsidiaries or such other
Subsidiary which are not then covered by any Loan Document and which are of a type and
nature satisfactory to the Agent, and having a value (as determined by the Agent in its sole
discretion), in addition to other Oil and Gas Properties already subject to a Mortgage,
sufficient to eliminate the Overadvance, all as more particularly described in Sections
6.21(c) and (d); or

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     (b) make a payment with respect to the Obligations, in an aggregate principal amount
sufficient to eliminate such Overadvance within ten (10) days after the date of the
occurrence of such Overadvance (and the Borrower shall make such payment within such ten-day
period).

If the Borrower shall elect to execute and deliver, and/or to cause the Pledging Subsidiaries or
any other Subsidiary to execute and deliver supplemental or additional Security Documents to the
Agent pursuant to clause (a), it shall provide the Agent with descriptions of the
additional assets to be mortgaged (together with current valuations, engineering reports, Security
Documents described in clause (a) and title evidence applicable thereto and other documents
including opinions of counsel, each of which shall be in form and substance reasonably satisfactory
to the Agent) within sixty (60) days after the date of the occurrence of such Overadvance. Such
supplemental or additional Security Documents shall be subject to the terms of Section
6.21. If the Borrower fails to give the required notice that it shall take any of the actions
described in this Section 2.5 within such five (5) Business Day period or take the
applicable action in subclauses (a) or (b) above within such sixty (60) or ten (10)
day (as applicable) period, in each case from and after the date of the occurrence of the
Overadvance, then without any necessity for notice to the Borrower or any other person, the
Borrower shall become obligated immediately to pay Obligations in an aggregate principal amount
equal to the applicable Overadvance.

     2.6. Interest Rates and Letter of Credit Fee: Rates, Payments, and Calculations.

     (a) Interest Rates. Except as provided in clause (c) below, all Obligations
(except for undrawn Letters of Credit and except for Bank Product Obligations) that have
been charged to the Loan Account pursuant to the terms hereof shall bear interest on the
Daily Balance thereof as follows: (i) if the relevant Obligation is a LIBOR Rate Loan, at a
per annum rate equal to the LIBOR Rate plus the Applicable Margin, (ii) if the relevant
Obligation is a Base Rate Loan, at a per annum rate equal to the Base Rate plus the
Applicable Margin, and (iii) otherwise, at a per annum rate equal to the Base Rate plus the
Applicable Rate Margin for Base Rate Loans; provided, however, that the
outstanding principal amount of the Term Loan shall bear interest as follows: (x) if a
LIBOR Rate Loan, at a per annum rate equal to the LIBOR Rate plus 1.50%, and (y) if a Base
Rate Loan, at a per annum rate equal to the Base Rate less 0.25%.

     (b) Letter of Credit Fee. Borrower shall pay Agent (for the ratable benefit of
the Lenders with a Revolver Commitment, subject to any letter agreement between Agent and
individual Lenders), a Letter of Credit fee (in addition to the charges, commissions, fees,
and costs set forth in Section 2.12(e)) which shall accrue at a rate equal to 2.25%
per annum times the Daily Balance of the undrawn amount of all outstanding Letters of
Credit.

     (c) Default Rate. Upon the occurrence and during the continuation of an Event
of Default (and at the election of Agent or the Required Lenders),

     (i) all Obligations (except for undrawn Letters of Credit and Bank Product
Obligations) that have been charged to the Loan Account pursuant to the terms hereof
shall bear interest on the Daily Balance thereof at a per annum rate equal to 4
percentage points above the per annum rate otherwise applicable hereunder, and

     (ii) the Letter of Credit fee provided for above shall be increased to 4
percentage points above the per annum rate otherwise applicable hereunder.

     (d) Payment. Except as provided to the contrary in Section 2.11 or
Section 2.13(a), interest, Letter of Credit fees, and all other fees payable
hereunder shall be due and payable, in

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arrears, on the first day of each month at any time that Obligations or Commitments are
outstanding. Borrower hereby authorizes Agent, from time to time, without prior notice to
Borrower, to charge all interest and fees (when due and payable), all Lender Group Expenses
(as and when incurred), all charges, commissions, fees, and costs provided for in
Section 2.12(e) (as and when accrued or incurred), all fees and costs provided for
in Section 2.11 (as and when accrued or incurred), and all other payments as and
when due and payable under any Loan Document (including the amounts due and payable with
respect to the Term Loan and including any amounts due and payable to the Bank Product
Providers in respect of Bank Products up to the amount of the then extant Bank Products
Reserve) to Borrower’s Loan Account, which amounts thereafter shall constitute Advances
hereunder and shall accrue interest at the rate then applicable to Advances hereunder. Any
interest not paid when due shall be compounded by being charged to Borrower’s Loan Account
and shall thereafter constitute Advances hereunder and shall accrue interest at the rate
then applicable to Advances that are Base Rate Loans hereunder.

     (e) Computation. All interest and fees chargeable under the Loan Documents
shall be computed on the basis of a 360 day year for the actual number of days elapsed. In
the event the Base Rate is changed from time to time hereafter, the rates of interest
hereunder based upon the Base Rate automatically and immediately shall be increased or
decreased by an amount equal to such change in the Base Rate.

     (f) Intent to Limit Charges to Maximum Lawful Rate. Borrower and the Lender
Group hereby agree and stipulate that the only charges imposed upon Borrower for the use of
money in connection with this Agreement are and shall be the specific interest and fees
described in this Article 2 and in any other Loan Document. Notwithstanding the foregoing,
Borrower and the Lender Group further agree and stipulate that all agency fees, syndication
fees, facility fees, underwriting fees, default charges, late charges, funding or “breakage”
charges, increased cost charges, the Applicable Prepayment Premium, “float” or “clearance”
charges, attorneys’ fees and reimbursement for costs and expenses paid by the Agent or the
Lender Group to third parties or for damages incurred by the Agent or the Lender Group are
charges to compensate the Agent and the Lender Group for underwriting and administrative
services and costs or losses performed or incurred, and to be performed and incurred, by the
Agent and the Lender Group in connection with this Agreement and the other Loan Documents.
In no event shall the amount of interest and other charges for the use of money payable
under this Agreement exceed the maximum amounts permissible under any law that a court of
competent jurisdiction shall, in a final determination, deem applicable. Borrower and the
Lender Group, in executing and delivering this Agreement, intend legally to agree upon the
rate or rates of interest and other charges for the use of money and manner of payment
stated within it; provided, however, that, anything contained herein to the
contrary notwithstanding, if the amount of such interest and other charges for the use of
money or manner of payment exceeds the maximum amount allowable under applicable law, then,
ipso facto as of the date of this Agreement, Borrower is and shall be liable only for the
payment of such maximum as allowed by law, and payment received from Borrower in excess of
such legal maximum whenever received, shall be applied to reduce the principal balance of
the Obligations to the extent of such excess.

     2.7. Cash Management.

     (a) Borrower shall (i) establish and maintain cash management services of a type and on
terms satisfactory to Agent at one or more of the banks set forth on Schedule 2.7(a)
(each a “Cash Management Bank”), and shall request in writing and otherwise take such
reasonable steps, if necessary, to ensure that all Account Debtors of Borrower and the
Pledging Subsidiaries, forward payment of the amounts owed by them directly to such Cash
Management Bank, and (ii)

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deposit or cause to be deposited promptly, and in any event no later than the first
Business Day after the date of receipt thereof, all Collections (including those sent
directly by Account Debtors to a Cash Management Bank) into a bank account subject to a
Control Agreement (a “Cash Management Account”) at one of the Cash Management Banks.

     (b) Each Cash Management Bank shall establish and maintain Cash Management Agreements
with Agent and Borrower, in form and substance acceptable to Agent. Each such Cash
Management Agreement shall provide, among other things, that (i) all items of payment
deposited in such Cash Management Account and proceeds thereof are held by such Cash
Management Bank as agent or bailee-in-possession for Agent, (ii) the Cash Management Bank
has no rights of setoff or recoupment or any other claim against the applicable Cash
Management Account, other than for payment of its service fees and other charges directly
related to the administration of such Cash Management Account and for returned checks or
other items of payment, and (iii) upon notice from Agent under such Cash Management
Agreement, the Cash Management Bank will immediately thereafter, until notified to the
contrary in writing by the Agent, forward by daily sweep (aa) an amount equal to seventeen
and one-half percent (17.5%) (the “Borrower’s Estimated Percentage”) of all amounts
deposited in the applicable Cash Management Account to the Agent’s Account and (bb) an
amount equal to the remaining eighty-two and one-half percent (82.5%) of all other amounts
deposited in the applicable Cash Management Account to Borrower’s account no. 4121083562 at
Wells Fargo.

     (c) So long as no Default or Event of Default has occurred and is continuing, Borrower
may amend Schedule 2.7(a) to add or replace a Cash Management Bank or Cash
Management Account; provided, however, that (i) such prospective Cash
Management Bank shall be satisfactory to Agent and Agent shall have consented in writing in
advance to the opening of such Cash Management Account with the prospective Cash Management
Bank, and (ii) prior to the time of the opening of such Cash Management Account, Borrower
and such prospective Cash Management Bank shall have executed and delivered to Agent a Cash
Management Agreement. Borrower shall close any of their Cash Management Accounts (and
establish replacement cash management accounts in accordance with the foregoing sentence)
promptly and in any event within 30 days of notice from Agent that the creditworthiness of
any Cash Management Bank is no longer acceptable in Agent’s reasonable judgment, or as
promptly as practicable and in any event within 60 days of notice from Agent that the
operating performance, funds transfer, or availability procedures or performance of the Cash
Management Bank with respect to Cash Management Accounts or Agent’s liability under any Cash
Management Agreement with such Cash Management Bank is no longer acceptable in Agent’s
reasonable judgment.

     (d) The Cash Management Accounts shall be cash collateral accounts, with Borrower’s
ownership interest in all cash, checks and similar items of payment in such accounts
securing payment of the Obligations, and in which Borrower is hereby deemed to have granted
a Lien to Agent.

     (e) Agent shall be entitled to deliver and maintain the notice of cash transfer (“Cash
Transfer Notice”) provided for in clause (iii) of Section 2.7(b) at any time, in the
Agent’s sole and absolute discretion, that a Default or Event of Default has occurred and is
continuing (each such time period a “Cash Sweep Period”). Once a Cash Sweep Period has been
established by Agent it shall remain in effect until the conditions giving rise to such Cash
Sweep Period no longer exist and Borrower has delivered to Agent a certificate to such
effect requesting a termination of such Cash Sweep Period.

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     (f) During any Cash Sweep Period, Borrower shall on a monthly basis deliver to Agent a
report (each a “Monthly Funds Ownership Report”) reflecting (i) the actual percentage of
ownership by Borrower, the Pledging Subsidiaries, the LLC and the Partnerships of all funds
derived from the Borrowing Base Properties deposited to all Cash Management Banks during the
preceding monthly time period and (ii) the aggregate amount of such deposits (i.e., the
ownership percentage of Borrower, the Pledging Subsidiaries and the Pledging Subsidiaries in
the LLC and the Partnerships for such month expressed as a decimal multiplied by the
aggregate amount of all deposits to all Cash Management Banks during such month the
“Borrower’s Monthly Deposit”) in the Cash Management Account.

     (g) In the event a Monthly Funds Ownership Report reflects that during a Cash Sweep
Period Borrower’s Estimated Percentage has resulted in deposits to the Agent’s Account
during the preceding month in excess of the Borrower’s Monthly Deposit for such month, Agent
shall, upon request of Borrower, within five (5) Business Days, return to Borrower’s control
by wire transfer to the Designated Account an amount equal to the positive difference
between the Borrower’s Monthly Deposit for such month and the aggregate deposits to the
Agent’s Account during such monthly time period.

     (h) In the event a Monthly Funds Ownership Report reflects that during a Cash Sweep
Period Borrower’s Estimated Percentage has resulted in deposits to the Agent’s Account
during the preceding month of less than the Borrower’s Monthly Deposit for such month, Agent
shall promptly, in accordance with Section 2.3(e) of this Agreement, make an Advance
for the account of Borrower to be credited to the Agent’s Account in an amount equal to the
positive excess of the Borrower’s Monthly Deposit for such month over the amount deposited
to Agent’s Account for such month as a result of the Borrower’s Estimated Percentage.

     2.8. Crediting Payments; Collection Fee. The receipt of any payment item by Agent
(whether from transfers to Agent by the Cash Management Banks pursuant to the Cash Management
Agreements or otherwise) shall not be considered a payment on account unless such payment item is a
wire transfer of immediately available federal funds made to the Agent’s Account or unless and
until such payment item is honored when presented for payment. Should any payment item not be
honored when presented for payment, then Borrower shall be deemed not to have made such payment and
interest shall be calculated accordingly. Anything to the contrary contained herein
notwithstanding, any payment item shall be deemed received by Agent only if it is received into the
Agent’s Account on a Business Day on or before 11:00 a.m. (California time). If any payment item
is received into the Agent’s Account on a non-Business Day or after 11:00 a.m. (California time) on
a Business Day, it shall be deemed to have been received by Agent as of the opening of business on
the immediately following Business Day. As consideration for Agent’s processing of all Collections,
from and after the Closing Date, Agent shall be entitled to charge Borrower a collection fee in the
amount of $1,500.00 a month (the “Collection Fee”). The Collection Fee is acknowledged by the
parties to constitute an integral aspect of the pricing of the financing of Borrower and shall
apply irrespective of whether or not there are any outstanding monetary Obligations. The parties
acknowledge and agree that the economic benefit of the foregoing provisions of this Section
2.8 shall be for the exclusive benefit of Agent.

     2.9. Designated Account. Agent is authorized to make the Advances, and the Term Loan,
and Issuing Lender is authorized to issue the Letters of Credit, under this Agreement based upon
telephonic or other instructions received from anyone purporting to be an Authorized Person, or
without instructions if pursuant to Section 2.6(d). Borrower agrees to establish and
maintain the Designated Account with the Designated Account Bank for the purpose of receiving the
proceeds of the Advances requested by Borrower and made by Agent or the Lenders hereunder. Unless
otherwise agreed by Agent

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and Borrower, any Advance, Agent Advance, or Swing Loan requested by Borrower and made by
Agent or the Lenders hereunder shall be made to the Designated Account.

     2.10. Maintenance of Loan Account; Statements of Obligations. Agent shall maintain an
account on its books in the name of Borrower (the “Loan Account”) on which Borrower will be charged
with the Term Loan, all Advances (including Agent Advances and Swing Loans) made by Agent, Swing
Lender, or the Lenders to Borrower or for Borrower’s account, the Letters of Credit issued by
Issuing Lender for Borrower’s account, and with all other payment Obligations hereunder or under
the other Loan Documents (except for Bank Product Obligations), including, accrued interest, fees
and expenses, and Lender Group Expenses. In accordance with Section 2.8, the Loan Account
will be credited with all payments received by Agent from Borrower or for Borrower’s account,
including all amounts received in the Agent’s Account from any Cash Management Bank. Agent shall
render statements regarding the Loan Account to Borrower, including principal, interest, fees, and
including an itemization of all charges and expenses constituting Lender Group Expenses owing, and
such statements shall be conclusively presumed to be correct and accurate and constitute an account
stated between Borrower and the Lender Group unless, within 30 days after receipt thereof by
Borrower, Borrower shall deliver to Agent written objection thereto describing the error or errors
contained in any such statements.

     2.11. Fees. Borrower shall pay to Agent the following fees and charges, which fees
and charges shall be non-refundable when paid (irrespective of whether this Agreement is terminated
thereafter) and shall be apportioned among the Lenders in accordance with the terms of letter
agreements between Agent and individual Lenders:

     (a) Unused Line Fee. On the first day of each month during the term of this
Agreement, an unused line fee in the amount equal to one-half of one percent (0.50%) per
annum times the result of (a) the Maximum Revolver Amount less (b) the sum of (i) the
average Daily Balance of Advances that were outstanding during the immediately preceding
month, plus (ii) the average Daily Balance of the Letter of Credit Usage during the
immediately preceding month,

     (b) Fee Letter Fees. As and when due and payable under the terms of the Fee
Letter, Borrower shall pay to Agent the fees set forth in the Fee Letter, and

     (c) Audit, Appraisal, and Valuation Charges. For the separate account of
Agent, audit, appraisal, and valuation fees and charges as follows, (i) a fee of $850.00 per
day, per auditor, plus out-of-pocket expenses for each financial audit of Borrower performed
by personnel employed by Agent, (ii) a fee of $1,500.00 per day per appraiser, plus
out-of-pocket expenses, for each appraisal of the Collateral performed by personnel employed
by Agent, and (iii) the actual charges paid or incurred by Agent if it elects to employ the
services of one or more third Persons to perform financial audits of Borrower, to appraise
the Collateral, or any portion thereof, or to assess Borrower’s business valuation.

     2.12. Letters of Credit.

     (a) Subject to the terms and conditions of this Agreement, the Issuing Lender agrees to
issue letters of credit for the account of Borrower (each, an “L/C”) or to purchase
participations or execute indemnities or reimbursement obligations (each such undertaking,
an “L/C Undertaking”) with respect to letters of credit issued by an Underlying Issuer (as
of the Closing Date, the prospective Underlying Issuer is to be Wells Fargo) for the account
of Borrower. To request the issuance of a Letter of Credit, (or the amendment, renewal, or
extension of an outstanding Letter of Credit), Borrower shall hand deliver or telecopy (or
transmit by electronic communication, if arrangements for doing so have been approved by the
Issuing Lender) to the

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Issuing Lender and Agent (reasonably in advance of the requested date of issuance,
amendment, renewal, or extension) a notice requesting the issuance of a Letter of Credit, or
identifying the Letter of Credit to be amended, renewed, or extended, the date of issuance,
amendment, renewal, or extension, the date on which such Letter of Credit is to expire, the
amount of such Letter of Credit, the name and address of the beneficiary thereof (or of the
Underlying Letter of Credit, as applicable), and such other information as shall be
necessary to prepare, amend, renew, or extend such Letter of Credit. If requested by the
Issuing Lender, Borrower also shall be an applicant under the application with respect to
any Underlying Letter of Credit that is to be the subject of a Letter of Credit. The
Issuing Lender shall have no obligation to issue a Letter of Credit if any of the following
would result after giving effect to the requested Letter of Credit:

     (i) the Letter of Credit Usage would exceed the Borrowing Base less the amount
of outstanding Advances, or

     (ii) the Letter of Credit Usage would exceed $5,000,000.00 or

     (iii) the Letter of Credit Usage would exceed the Maximum Revolver Amount less
the then extant amount of outstanding Advances.

     Borrower and the Lender Group acknowledge and agree that certain Underlying Letters of Credit
may be issued to support letters of credit that already are outstanding as of the Closing Date.
Each Letter of Credit (and corresponding Underlying Letter of Credit) shall have an expiry date no
later than 30 days prior to the Maturity Date and all such Letters of Credit (and corresponding
Underlying Letter of Credit) shall be in form and substance acceptable to the Issuing Lender (in
the exercise of its Permitted Discretion), including the requirement that the amounts payable
thereunder must be payable in Dollars. If Issuing Lender is obligated to advance funds under a
Letter of Credit, Borrower immediately shall reimburse such L/C Disbursement to Issuing Lender by
paying to Agent an amount equal to such L/C Disbursement not later than 11:00 a.m., California
time, on the date that such L/C Disbursement is made, if Borrower shall have received written or
telephonic notice of such L/C Disbursement prior to 10:00 a.m., California time, on such date, or,
if such notice has not been received by Borrower prior to such time on such date, then not later
than 11:00 a.m., California time, on the following Business Day and, in the absence of such
reimbursement, the L/C Disbursement immediately and automatically shall be deemed to be an Advance
hereunder and, thereafter, shall bear interest at the rate then applicable to Advances under this
Agreement. To the extent an L/C Disbursement is deemed to be an Advance hereunder, Borrower’s
obligation to reimburse such L/C Disbursement shall be discharged and replaced by the resulting
Advance. Promptly following receipt by Agent of any payment from Borrower pursuant to this
paragraph, Agent shall distribute such payment to the Issuing Lender or, to the extent that Lenders
have made payments pursuant to Section 2.12(c) to reimburse the Issuing Lender, then to
such Lenders and the Issuing Lender as their interest may appear.

     (b) Promptly following receipt of a notice of L/C Disbursement pursuant to Section
2.12(a), each Lender with a Revolver Commitment agrees to fund its Pro Rata Share of any
Advance deemed made pursuant to the foregoing subsection on the same terms and conditions as
if Borrower had requested such Advance and Agent shall promptly pay to Issuing Lender the
amounts so received by it from the Lenders. By the issuance of a Letter of Credit (or an
amendment to a Letter of Credit increasing the amount thereof) and without any further
action on the part of the Issuing Lender or the Lenders with Revolver Commitments, the
Issuing Lender shall be deemed to have granted to each Lender with a Revolver Commitment,
and each Lender with a Revolver Commitment shall be deemed to have purchased, a
participation in each Letter of Credit, in an amount equal to its Pro Rata Share of the Risk
Participation Liability of such Letter of Credit, and each such Lender agrees to pay to
Agent, for the account of the Issuing Lender,

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such Lender’s Pro Rata Share of any payments made by the Issuing Lender under such
Letter of Credit. In consideration and in furtherance of the foregoing, each Lender with a
Revolver Commitment hereby absolutely and unconditionally agrees to pay to Agent, for the
account of the Issuing Lender, such Lender’s Pro Rata Share of each L/C Disbursement made by
the Issuing Lender and not reimbursed by Borrower on the date due as provided in clause (a)
of this Section, or of any reimbursement payment required to be refunded to Borrower for any
reason. Each Lender with a Revolver Commitment acknowledges and agrees that its obligation
to deliver to Agent, for the account of the Issuing Lender, an amount equal to its
respective Pro Rata Share of each L/C Disbursement made by the Issuing Lender pursuant to
this Section 2.12(b) shall be absolute and unconditional and such remittance shall
be made notwithstanding the occurrence or continuation of an Event of Default or Default or
the failure to satisfy any condition set forth in Section 3 hereof. If any such
Lender fails to make available to Agent the amount of such Lender’s Pro Rata Share of each
L/C Disbursement made by the Issuing Lender in respect of such Letter of Credit as provided
in this Section, such Lender shall be deemed to be a Defaulting Lender and Agent (for the
account of the Issuing Lender) shall be entitled to recover such amount on demand from such
Lender together with interest thereon at the Defaulting Lender Rate until paid in full.

     (c) Borrower hereby agrees to indemnify, save, defend, and hold the Lender Group
harmless from any loss, cost, expense, or liability, and reasonable attorneys fees incurred
by the Lender Group arising out of or in connection with any Letter of Credit;
provided, however, that Borrower shall not be obligated hereunder to
indemnify for any loss, cost, expense, or liability to the extent that it caused by the
gross negligence or willful misconduct of the Issuing Lender or any other member of the
Lender Group. Borrower agrees to be bound by the Underlying Issuer’s regulations and
interpretations of any Underlying Letter of Credit or by Issuing Lender’s interpretations of
any L/C issued by Issuing Lender to or for Borrower’s account, even though this
interpretation may be different from Borrower’s own, and Borrower understands and agrees
that the Lender Group shall not be liable for any error, negligence, or mistake, whether of
omission or commission, in following Borrower’s instructions or those contained in the
Letter of Credit or any modifications, amendments, or supplements thereto. Borrower
understands that the L/C Undertakings may require Issuing Lender to indemnify the Underlying
Issuer for certain costs or liabilities arising out of claims by Borrower against such
Underlying Issuer. Borrower hereby agrees to indemnify, save, defend, and hold the Lender
Group harmless with respect to any loss, cost, expense (including reasonable attorneys
fees), or liability incurred by the Lender Group under any L/C Undertaking as a result of
the Lender Group’s indemnification of any Underlying Issuer; provided,
however, that Borrower shall not be obligated hereunder to indemnify for any loss,
cost, expense, or liability to the extent that it caused by the gross negligence or willful
misconduct of the Issuing Lender or any other member of the Lender Group. Borrower hereby
acknowledges and agrees that neither the Lender Group nor the Issuing Lender shall be
responsible for delays, errors, or omissions resulting from the malfunction of equipment in
connection with any Letter of Credit.

     (d) Borrower hereby authorizes and directs any Underlying Issuer to deliver to the
Issuing Lender all instruments, documents, and other writings and property received by such
Underlying Issuer pursuant to such Underlying Letter of Credit and to accept and rely upon
the Issuing Lender’s instructions with respect to all matters arising in connection with
such Underlying Letter of Credit and the related application.

     (e) Any and all charges, commissions, fees, and costs incurred by the Issuing Lender
relating to Underlying Letters of Credit shall be Lender Group Expenses for purposes of this
Agreement and immediately shall be reimbursable by Borrower to Agent for the account of the

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Issuing Lender; it being acknowledged and agreed by Borrower that, as of the Closing
Date, the issuance charge imposed by the prospective Underlying Issuer is .825% per annum
times the face amount of each Underlying Letter of Credit, that such issuance charge may be
changed from time to time, and that the Underlying Issuer also imposes a schedule of charges
for amendments, extensions, drawings, and renewals.

     (f) If by reason of (i) any change after the Closing Date in any applicable law,
treaty, rule, or regulation or any change in the interpretation or application thereof by
any Governmental Authority, or (ii) compliance by the Underlying Issuer or the Lender Group
with any direction, request, or requirement (irrespective of whether having the force of
law) of any Governmental Authority or monetary authority including, Regulation D of the
Federal Reserve Board as from time to time in effect (and any successor thereto):

     (i) any reserve, deposit, or similar requirement is or shall be imposed or
modified in respect of any Letter of Credit issued hereunder, or

     (ii) there shall be imposed on the Underlying Issuer or the Lender Group any
other condition regarding any Underlying Letter of Credit or any Letter of Credit
issued pursuant hereto;

and the result of the foregoing is to increase, directly or indirectly, the cost to the Lender
Group of issuing, making, guaranteeing, or maintaining any Letter of Credit or to reduce the amount
receivable in respect thereof by the Lender Group, then, and in any such case, Agent may, at any
time within a reasonable period after the additional cost is incurred or the amount received is
reduced, notify Borrower, and Borrower shall pay on demand such amounts as Agent may specify to be
necessary to compensate the Lender Group for such additional cost or reduced receipt, together with
interest on such amount from the date of such demand until payment in full thereof at the rate then
applicable to the Base Rate Loans hereunder. The determination by Agent of any amount due pursuant
to this Section, as set forth in a certificate setting forth the calculation thereof in reasonable
detail, shall, in the absence of manifest or demonstrable error, be final and conclusive and
binding on all of the parties hereto.

     2.13. LIBOR Option.

     (a) Interest and Interest Payment Dates. In lieu of having interest charged at
the rate based upon the Base Rate, Borrower shall have the option (the “LIBOR Option”) to
have interest on all or a portion of the Advances or the Term Loan be charged at a rate of
interest based upon the LIBOR Rate. Interest on LIBOR Rate Loans shall be payable on the
earliest of (i) the last day of the Interest Period applicable thereto (provided,
however, that, subject to the following clauses (ii) and (iii), in the case of any
Interest Period greater than 3 months in duration, interest shall be payable at 3 month
intervals after the commencement of the applicable Interest Period and on the last day of
such Interest Period), (ii) the occurrence of an Event of Default in consequence of which
the Required Lenders or Agent on behalf thereof have elected to accelerate the maturity of
all or any portion of the Obligations, or (iii) termination of this Agreement pursuant to
the terms hereof. On the last day of each applicable Interest Period, unless Borrower
properly has exercised the LIBOR Option with respect thereto, the interest rate applicable
to such LIBOR Rate Loan automatically shall convert to the rate of interest then applicable
to Base Rate Loans of the same type hereunder. At any time that an Event of Default has
occurred and is continuing, Borrower no longer shall have the option to request that
Advances or the Term Loan bear interest at a rate based upon the LIBOR Rate and Agent shall
have the right to convert the interest rate on all outstanding LIBOR Rate Loans to the rate
then applicable to Base Rate Loans hereunder.

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     (b) LIBOR Election.

     (i) Borrower may, at any time and from time to time, so long as no Event of
Default has occurred and is continuing, elect to exercise the LIBOR Option by
notifying Agent prior to 11:00 a.m. (California time) at least 3 Business Days prior
to the commencement of the proposed Interest Period (the “LIBOR Deadline”). Notice
of Borrower’s election of the LIBOR Option for a permitted portion of the Advances
or the Term Loan and an Interest Period pursuant to this Section shall be made by
delivery to Agent of a LIBOR Notice received by Agent before the LIBOR Deadline, or
by telephonic notice received by Agent before the LIBOR Deadline (to be confirmed by
delivery to Agent of a LIBOR Notice received by Agent prior to 5:00 p.m. (California
time) on the same day). Promptly upon its receipt of each such LIBOR Notice, Agent
shall provide a copy thereof to each of the Lenders having a Revolver Commitment or
Term Loan Commitment.

     (ii) Each LIBOR Notice shall be irrevocable and binding on Borrower. In
connection with each LIBOR Rate Loan, Borrower shall indemnify, defend, and hold
Agent and the Lenders harmless against any loss, cost, or expense incurred by Agent
or any Lender as a result of (a) the payment of any principal of any LIBOR Rate Loan
other than on the last day of an Interest Period applicable thereto (including as a
result of an Event of Default), (b) the conversion of any LIBOR Rate Loan other than
on the last day of the Interest Period applicable thereto, or (c) the failure to
borrow, convert, continue or prepay any LIBOR Rate Loan on the date specified in any
LIBOR Notice delivered pursuant hereto (such losses, costs, and expenses,
collectively, “Funding Losses”). Funding Losses shall, with respect to Agent or any
Lender, be deemed to equal the amount determined by Agent or such Lender to be the
excess, if any, of (i) the amount of interest that would have accrued on the
principal amount of such LIBOR Rate Loan had such event not occurred, at the LIBOR
Rate that would have been applicable thereto, for the period from the date of such
event to the last day of the then current Interest Period therefor (or, in the case
of a failure to borrow, convert, or continue, for the period that would have been
the Interest Period therefor), minus (ii) the amount of interest that would accrue
on such principal amount for such period at the interest rate which Agent or such
Lender would be offered were it to be offered, at the commencement of such period,
Dollar deposits of a comparable amount and period in the London interbank market. A
certificate of Agent or a Lender delivered to Borrower setting forth any amount or
amounts that Agent or such Lender is entitled to receive pursuant to this
Section 2.13 shall be conclusive absent manifest error.

     (iii) Borrower shall have not more than 7 LIBOR Rate Loans in effect at any
given time. Borrower only may exercise the LIBOR Option for LIBOR Rate Loans of at
least $1,000,000.00 and integral multiples of $1,000,000.00 in excess thereof.

     (c) Prepayments. Borrower may prepay LIBOR Rate Loans at any time;
provided, however, that in the event that LIBOR Rate Loans are prepaid on
any date that is not the last day of the Interest Period applicable thereto, including as a
result of any automatic prepayment through the required application by Agent of proceeds of
Borrower’s and its Subsidiaries’ Collections in accordance with Section 2.4(b) or
for any other reason, including early termination of the term of this Agreement or
acceleration of all or any portion of the Obligations pursuant to the terms hereof, Borrower
shall indemnify, defend, and hold Agent and the Lenders and their Participants harmless
against any and all Funding Losses in accordance with clause (b)(ii) above.

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     (d) Special Provisions Applicable to LIBOR Rate.

     (i) The LIBOR Rate may be adjusted by Agent with respect to any Lender on a
prospective basis to take into account any additional or increased costs to such
Lender of maintaining or obtaining any eurodollar deposits or increased costs, in
each case, due to changes in applicable law occurring subsequent to the commencement
of the then applicable Interest Period, including changes in tax laws (except
changes of general applicability in corporate income tax laws) and changes in the
reserve requirements imposed by the Board of Governors of the Federal Reserve System
(or any successor), excluding the Reserve Percentage, which additional or increased
costs would increase the cost of funding loans bearing interest at the LIBOR Rate.
In any such event, the affected Lender shall give Borrower and Agent notice of such
a determination and adjustment and Agent promptly shall transmit the notice to each
other Lender and, upon its receipt of the notice from the affected Lender, Borrower
may, by notice to such affected Lender (y) require such Lender to furnish to
Borrower a statement setting forth the basis for adjusting such LIBOR Rate and the
method for determining the amount of such adjustment, or (z) repay the LIBOR Rate
Loans with respect to which such adjustment is made (together with any amounts due
under clause (b)(ii) above).

     (ii) In the event that any change in market conditions or any law, regulation,
treaty, or directive, or any change therein or in the interpretation of application
thereof, shall at any time after the date hereof, in the reasonable opinion of any
Lender, make it unlawful or impractical for such Lender to fund or maintain LIBOR
Advances or to continue such funding or maintaining, or to determine or charge
interest rates at the LIBOR Rate, such Lender shall give notice of such changed
circumstances to Agent and Borrower and Agent promptly shall transmit the notice to
each other Lender and (y) in the case of any LIBOR Rate Loans of such Lender that
are outstanding, the date specified in such Lender’s notice shall be deemed to be
the last day of the Interest Period of such LIBOR Rate Loans, and interest upon the
LIBOR Rate Loans of such Lender thereafter shall accrue interest at the rate then
applicable to Base Rate Loans, and (z) Borrower shall not be entitled to elect the
LIBOR Option until such Lender determines that it would no longer be unlawful or
impractical to do so.

     (e) No Requirement of Matched Funding. Anything to the contrary contained
herein notwithstanding, neither Agent, nor any Lender, nor any of their Participants, is
required actually to acquire eurodollar deposits to fund or otherwise match fund any
Obligation as to which interest accrues at the LIBOR Rate. The provisions of this Section
shall apply as if each Lender or its Participants had match funded any Obligation as to
which interest is accruing at the LIBOR Rate by acquiring eurodollar deposits for each
Interest Period in the amount of the LIBOR Rate Loans.

     2.14. Capital Requirements. If, after the date hereof, any Lender determines that (i)
the adoption of or change in any law, rule, regulation or guideline regarding capital requirements
for banks or bank holding companies, or any change in the interpretation or application thereof by
any Governmental Authority charged with the administration thereof, or (ii) compliance by such
Lender or its parent bank holding company with any guideline, request or directive of any such
entity regarding capital adequacy (whether or not having the force of law), has the effect of
reducing the return on such Lender’s or such holding company’s capital as a consequence of such
Lender’s Commitments hereunder to a level below that which such Lender or such holding company
could have achieved but for such adoption, change, or compliance (taking into consideration such
Lender’s or such holding company’s then existing policies with respect to capital adequacy and
assuming the full utilization of such entity’s capital) by any amount

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deemed by such Lender to be material, then such Lender may notify Borrower and Agent thereof.
Following receipt of such notice, Borrower agrees to pay such Lender on demand the amount of such
reduction of return of capital as and when such reduction is determined, payable within 90 days
after presentation by such Lender of a statement in the amount and setting forth in reasonable
detail such Lender’s calculation thereof and the assumptions upon which such calculation was based
(which statement shall be deemed true and correct absent manifest error). In determining such
amount, such Lender may use any reasonable averaging and attribution methods.

     2.15. Intentionally Deleted.

     2.16. Borrowing Base.

     (a) Determination of the Borrowing Base. During the period from the date
hereof to the date of the next determination of the Borrowing Base pursuant to the further
provisions of this Section 2.16, the initial amount of the Borrowing Base will be an
amount set by the Agent on the date hereof and acknowledged by the Borrower (the “Initial
Borrowing Base”).

     (b) Annual Scheduled Determinations of the Borrowing Base. Promptly after July
1 of each calendar year (commencing July 1, 2008), and in any event prior to September 1 of
each calendar year, the Borrower shall furnish to Lenders a report in form and substance
satisfactory to Lenders, prepared by an Approved Engineer, which report shall be dated as of
July 1 of such calendar year and shall set forth the oil and gas reserves attributable to
the Borrowing Base Properties, and a projection of the rate of production and net operating
income with respect thereto, as of such date, together with additional data concerning
pricing, hedging, operating costs, quantities and purchasers of production, and other
information and engineering and geological data as the Agent may reasonably request. Within
thirty (30) days after receipt of such report and information and its review and approval by
Agent, Agent shall make a recommendation of the amount of credit available to Borrower
hereunder (a “Recommended Borrowing Base Determination”). Agent and the Required Lenders
shall approve or reject Agent’s Recommended Borrowing Base Determination within ten (10)
Business Days of Agent’s notification of the Recommended Borrowing Base Determination. If
Agent and the Required Lenders fail to approve any such determination of the Borrowing Base
made by Agent hereunder in such ten-Business Day period, then Agent shall poll all Lenders,
and the Borrowing Base shall be set at the highest amount on which Agent and the Required
Lenders can agree, it being understood that a Lender is deemed to have agreed to any and all
amounts that are lower than the amount actually determined by such Lender to be the
appropriate value of the Borrowing Base. Upon approval or deemed approval by Agent and the
Required Lenders, or all Lenders, as the case may be, of the amount of credit to be made
available to Borrower hereunder, Agent shall, by written notice to Borrower and Lenders,
designate the new Borrowing Base available to Borrower. Notwithstanding anything contained
herein to the contrary, no Lender shall be obligated to increase its Commitment without its
consent.

     (c) Semi-Annual Scheduled Determination of the Borrowing Base. In addition,
promptly after January 1 of each calendar year (commencing January 1, 2008), and in any
event prior to March 1st of each calendar year, the Borrower shall furnish to Lenders a
report in form and substance satisfactory to Lenders, prepared (i) prior to the occurrence
of an Event of Default, by the Borrower’s petroleum engineers and (ii) after the occurrence
of an Event of Default, by an Approved Engineer, and, in either case, reviewed and approved
by Agent, which report shall be dated as of January 1 of such calendar year and shall set
forth the oil and gas reserves attributable to the Borrowing Base Properties, and a
projection of the rate of production and net operating income with respect thereto, as of
such date, together with additional data concerning pricing,

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hedging, operating costs, quantities and purchasers of production, and other
information and engineering and geological data as the Agent may reasonably request. Within
thirty (30) days after receipt of such report and information and its review and approval by
Agent, Agent shall make a recommendation of the amount of credit available to Borrower
hereunder (a “Recommended Borrowing Base Determination”). Agent and the Required Lenders
shall approve or reject Agent’s Recommended Borrowing Base Determination within ten (10)
Business Days of Agent’s notification of the Recommended Borrowing Base Determination. If
Agent and the Required Lenders fail to approve any such determination of the Borrowing Base
made by Agent hereunder in such ten-Business Day period, then Agent shall poll all Lenders,
and the Borrowing Base shall be set at the highest amount on which Agent and the Required
Lenders can agree, it being understood that a Lender is deemed to have agreed to any and all
amounts that are lower than the amount actually determined by such Lender to be the
appropriate value of the Borrowing Base. Upon approval or deemed approval by Agent and the
Required Lenders, or all Lenders, as the case may be, of the amount of credit to be made
available to Borrower hereunder, Agent shall, by written notice to Borrower and Lenders,
designate the new Borrowing Base available to Borrower. Notwithstanding anything contained
herein to the contrary, no Lender shall be obligated to increase its Commitment without its
consent.

     (d) Discretionary Determination of the Borrowing Base. Agent and the Required
Lenders shall have the right to redetermine the Borrowing Base at any time that Agent and
the Required Lenders, in their sole discretion, believe that there has been an adverse
change in the market condition of the Energy Business or in the condition (financial or
otherwise) or operations of the Borrower and its Subsidiaries. If Agent and the Required
Lenders shall elect to make a discretionary redetermination of the Borrowing Base pursuant
to the provisions of this Section 2.16(d), the Borrower shall within thirty (30)
days of receipt of a request therefor from Agent and the Required Lenders, deliver to
Lenders such updated engineering, production, operating, and other data as the Agent or any
Lender may reasonably request. Agent and the Required Lenders shall approve and designate
the new Borrowing Base in accordance with the procedures and standards described in
Section 2.16(b) and (g).

     (e) Exclusions. Agent and the Required Lenders may exclude any oil and gas
reserves or portion of production therefrom or any income from any other Property from the
Borrowing Base, at any time, because title information is not reasonably satisfactory or
such oil and gas reserves are not Mortgaged Properties.

     (f) Quarterly Adjustments. In addition to the re-determination of the
Borrowing Base as provided above, the valuation of the oil and gas reserves set forth in the
most recent Reserve Report shall be adjusted quarterly by Lenders, based upon the quarterly
pricing report provided by the Borrower to Agent, pursuant to Section 6.2, such
revaluation to be made by Agent and the Required Lenders within five (5) Business Days of
its receipt of each such report, and Agent shall promptly notify in writing the Borrower of
the revalued Borrowing Base.

     (g) General Provisions With Respect to the Borrowing Base. The determination
of the Borrowing Base shall be made by Agent and the Required Lenders taking into
consideration the PV-10 Value of the Eligible Proved Developed Producing Reserves of the
Pledging Subsidiaries and the Eligible Proved Developed Producing Reserves of the
Partnerships and the LLC as reflected in the most recent Reserve Report or other report or
information provided under this Agreement, and any other relevant information obtained by or
delivered to the Agent and the Lender Group, all in accordance with the provisions of this
Section 2.16, together with such other credit factors (including, without
limitation, the assets, liabilities, cash flow, hedged and unhedged exposure to price, and
interest rate changes, business, properties,

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prospects, management, and ownership of Borrower, its Subsidiaries, the LLC, or the
Partnerships) as each Lender in its discretion deems significant.

     2.17. Noteless Agreement. No promissory notes shall evidence the payment obligations
of any Advances or the Term Loan to Borrower. Agent shall maintain in accordance with its usual
practice an account or accounts on its books evidencing the obligations of Borrower resulting from
the Term Loan and each Advance made by Agent from time to time, including the amounts of principal
and interest payable and paid to Lender hereunder. The entries maintained in said accounts shall
be prima facie evidence of the existence and amounts of the Term Loan and the Advances made by
Agent and the payment obligations of Borrower; provided, however, that the failure
of Agent to maintain such accounts or any error therein shall not in any manner affect the
obligation of Borrower to repay the Advances and the Term Loan.

3. CONDITIONS; TERMS OF AGREEMENT.

     3.1. Conditions Precedent to the Extension of Credit. The obligation of the Lender
Group (or any member thereof) to make the extension of credit provided for hereunder is subject to
the fulfillment, to the satisfaction of Agent and each Lender, of each of the following of the
conditions precedent:

     (a) Agent shall have received each of the following documents, in form and substance
satisfactory to Agent, duly executed, and each such document shall be in full force and
effect:

     (i) the Contribution Agreement,

     (ii) the Disbursement Letter,

     (iii) the Fee Letter,

     (iv) the Officers’ Certificate,

     (v) the Borrower’s Security Agreement,

     (vi) the Intercompany Notes, and

     (vii) Subordination Agreements, as may be required by Agent;

     (b) Agent shall have received (i) counterparts of duly executed Mortgages and/or
Mortgage Supplements encumbering Oil and Gas Properties of the Pledging Subsidiaries
constituting at least 80% of the Total Proved Developed Producing Reserves of the Pledging
Subsidiaries to which value is given in the determination of the Initial Borrowing Base duly
executed on behalf of each record owner of such Oil and Gas Properties and evidence of the
completion (or satisfactory arrangements for the completion) of all recordings and filings
of such Mortgage(s) as may be necessary or, in the reasonable opinion of the Agent,
desirable effectively to create a valid, perfected first priority Lien against the Oil and
Gas Properties purported to be covered thereby, except as a result of a Permitted Lien; and
(ii) duly executed Partnership Pledge Agreements and LLC Pledge Agreement assigning to
Agent, and granting to Agent a first perfected priority security interest in, partnership
interests in Partnerships and the membership interests in the LLC having Oil and Gas
Properties constituting at least 80% the Total Proved Developed Producing Reserves of the
Partnerships to which value is given in the determination of

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the Initial Borrowing Base and evidence of the completion of all recordings and filings
of such create valid, perfected first priority Liens in such partnership interests;

     (c) Agent shall have received counterparts of duly executed Mortgages encumbering the
Gathering Systems duly executed and delivered by each Subsidiary and/or Affiliate of
Borrower owning the Gathering Systems or any part thereof and evidence of the completion (or
satisfactory arrangement for the completion) of all recordings and filings of such
Mortgage(s) as may be necessary or in the reasonable opinion of the Agent, desirable
effectively to create a valid, perfected first priority Lien on the Gathering Systems;

     (d) Borrower shall have delivered a certificate to Agent demonstrating, in form and
substance satisfactory to Agent, a Collateral Value Amount equal to or in excess of
$300,000,000.00.

     (e) The Borrowing Base Properties, the Gathering Systems, and the other Collateral
shall be free and clear of all Liens, except Permitted Liens. All filings, notices,
recordings and other action necessary to perfect the Liens in the Collateral shall have been
made, given or accomplished or arrangements for the completion thereof satisfactory to the
Agent and its counsel shall have been made;

     (f) Agent shall have received copies of all Governmental Approvals and third party
consents and approvals necessary or, in the sole discretion of the Agent, advisable in
connection with (i) the mortgaging and pledging of the Mortgaged Properties, and the other
Collateral, (ii) the pledging of the partnership interests in the Partnerships, (iii) the
pledging of the membership interests in the LLC and (iv) the operations of the Borrower, its
Subsidiaries, the LLC and the Partnerships. All such Governmental Approvals and third party
consents and approvals shall be in full force and effect;

     (g) Agent and Lenders shall have received certificates, dated on or about the date
hereof, from the Borrower’s insurers certifying (i) compliance with all of the insurance
required by Section 6.8 hereof and by the Security Documents and (ii) that such
insurance is in full force and effect;

     (h) Agent and Lenders shall have received and shall be satisfied with the contents,
results and scope of the most recently delivered Reserve Report;

     (i) To the extent not previously provided, Borrower shall have delivered to the Agent
copies of all Hedging Agreements currently in existence to which Borrower or any of its
Subsidiaries is a party;

     (j) Agent shall have completed and be satisfied with the results of a review of the
Borrowing Base Properties and the other Collateral and the status of the title of the
Borrowing Base Properties;

     (k) Agent shall have received a certificate from the Secretary of Borrower and each of
its Subsidiaries: (i) attesting to the resolutions of its Board of Directors authorizing
its execution, delivery, and performance of this Agreement and the other Loan Documents to
which it is a party, (ii) authorizing specific officers of such party to execute the same,
and (iii) attesting to the incumbency and signatures of its specific officers;

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     (l) Agent shall have received copies of the Governing Documents of Borrower, each of
its Subsidiaries, the LLC and the Partnerships, as amended, modified, or supplemented to the
date hereof, certified by an appropriate officer of each such entity;

     (m) Agent shall have received a certificate of status with respect to Borrower, each of
its Subsidiaries, the LLC and the Partnerships, dated within 10 days of the date hereof,
such certificate to be issued by the appropriate officer of the jurisdiction of organization
of such entity, which certificate shall indicate that such entity is in good standing in
such jurisdiction;

     (n) Agent shall have received certificates of status with respect to Borrower, each of
its Subsidiaries, the LLC and the Partnerships, each dated within 30 days of the date
hereof, such certificates to be issued by the appropriate officer of the jurisdictions
(other than the jurisdiction of organization of such entity) in which its failure to be duly
qualified or licensed would constitute a Material Adverse Change, which certificates shall
indicate that such entity is in good standing in such jurisdictions;

     (o) Agent shall have received such updated certificates of insurance as Agent may
reasonably require;

     (p) Agent shall have received opinions of Borrower’s counsel in form and substance
satisfactory to Lender;

     (q) Agent shall have received satisfactory evidence (including a certificate of the
chief financial officer of Borrower) that all tax returns required to be filed by Borrower,
each of its Subsidiaries, the LLC and the Partnerships have been timely filed and all taxes
upon Borrower, its Subsidiaries, the LLC and the Partnerships or their respective
properties, assets, income, and franchises (including Real Property taxes, sales taxes and
payroll taxes) have been paid prior to delinquency, except such taxes that are the subject
of a Permitted Protest;

     (r) Borrower shall pay all Lender Group Expenses incurred in connection with the
transactions evidenced by this Agreement;

     (s) Borrower shall have received all licenses, approvals or evidence of other actions
required by any Person or Governmental Authority in connection with the execution and
delivery by Borrower and its Subsidiaries of this Agreement or any other Loan Document or
with the consummation of the transactions contemplated hereby and thereby; and

     (t) All other documents and legal matters in connection with the transactions
contemplated by this Agreement shall have been delivered, executed, or recorded and shall be
in form and substance satisfactory to Agent and its counsel.

     3.2. Intentionally Deleted.

     3.3. Conditions Precedent to all Extensions of Credit. The obligation of the Lender
Group (or any member thereof) to make any Advances (or to extend any other credit hereunder) shall
be subject to the following conditions precedent:

     (a) the representations and warranties contained in this Agreement and the other Loan
Documents shall be true and correct in all material respects on and as of the date of such
extension of credit, as though made on and as of such date (except to the extent that such
representations and warranties relate solely to an earlier date);

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     (b) no Default or Event of Default shall have occurred and be continuing on the date of
such extension of credit, nor shall either result from the making thereof;

     (c) no injunction, writ, restraining order, or other order of any nature prohibiting,
directly or indirectly, the extending of such credit shall have been issued and remain in
force by any Governmental Authority against Borrower, Agent, any Lender, or any of their
Affiliates; and

     (d) no Material Adverse Change shall have occurred.

     3.4. Term. This Agreement shall become effective upon the execution and delivery
hereof by Borrower, Agent and Lenders and shall continue in full force and effect for a term ending
on July 10, 2012 (the “Maturity Date”). The foregoing notwithstanding, the Lender Group, upon the
election of the Required Lenders, shall have the right to terminate its obligations under this
Agreement immediately and without notice upon the occurrence and during the continuation of an
Event of Default.

     3.5. Effect of Termination. On the date of termination of this Agreement, all
Obligations (including contingent reimbursement obligations of Borrower with respect to any
outstanding Letters of Credit and including all Bank Products Obligations) immediately shall become
due and payable without notice or demand (including (a) either (i) providing cash collateral to be
held by Agent for the benefit of those Lenders with a Revolver Commitment in an amount equal to
105% of the then extant Letter of Credit Usage, or (ii) causing the original Letters of Credit to
be returned to Issuing Lender, and (b) providing cash collateral (in an amount determined by Agent
as sufficient to satisfy the reasonably estimated credit exposure) to be held by Agent for the
benefit of the Bank Product Providers with respect to the then extant Bank Products Obligations).
No termination of this Agreement, however, shall relieve or discharge Borrower of its duties,
Obligations, or covenants hereunder and the Agent’s Liens in the Collateral shall remain in effect
until all Obligations have been fully and finally discharged and the Lender Group’s obligations to
provide additional credit hereunder have been terminated. When this Agreement has been terminated
and all of the Obligations have been fully and finally discharged and the Lender Group’s
obligations to provide additional credit under the Loan Documents have been terminated irrevocably,
Agent will, at Borrower’s sole expense, execute and deliver any UCC termination statements, lien
releases, mortgage releases, re-assignments of trademarks, discharges of security interests, and
other similar discharge or release documents (and, if applicable, in recordable form) as are
reasonably necessary to release, as of record, the Agent’s Liens and all notices of security
interests and liens previously filed by Agent with respect to the Obligations.

     3.6. Early Termination by Borrower. Borrower has the option, at any time upon 90 days
prior written notice by Borrower to Agent, to terminate this Agreement by paying to Agent, for the
benefit of the Lender Group, in cash, the Obligations (including (a) either (i) providing cash
collateral to be held by Agent for the benefit of those Lenders with a Revolver Commitment in an
amount equal to 105% of the then extant Letter of Credit Usage, or (ii) causing the original
Letters of Credit to be returned to Issuing Lender in full, and (b) providing cash collateral (in
an amount determined by Agent as sufficient to satisfy the reasonably estimated credit exposure) to
be held by Agent for the benefit of the Bank Product Providers with respect to the then extant Bank
Products Obligations), in full, together with, in the absence of a Non-Prepayment Premium Event,
the Applicable Prepayment Premium (to be allocated based upon letter agreements between Agent and
individual Lenders). If Borrower has sent a notice of termination pursuant to the provisions of
this Section, then the Commitments shall terminate and Borrower shall be obligated to repay the
Obligations (including (a) either (i) providing cash collateral to be held by Agent for the benefit
of those Lenders with a Revolver Commitment in an amount equal to 105% of the then extant Letter of
Credit Usage, or (ii) causing the original Letters of Credit to be returned to the Issuing Lender,
in full, and (b) providing cash collateral (in an amount determined by Agent as sufficient to
satisfy the reasonably estimated credit exposure) to be held by Agent for the benefit of the

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Bank Product Providers with respect to the then extant Bank Products Obligations), in full,
together with, in the absence of a Non-Prepayment Premium Event, the Applicable Prepayment Premium,
on the date set forth as the date of termination of this Agreement in such notice. In the event of
the termination of this Agreement and repayment of the Obligations at any time prior to the
Maturity Date, for any other reason, including (a) termination upon the election of the Required
Lenders to terminate after the occurrence and during the continuation of an Event of Default, (b)
foreclosure and sale of Collateral, (c) sale of the Collateral in any Insolvency Proceeding, or (d)
restructure, reorganization or compromise of the Obligations by the confirmation of a plan of
reorganization, or any other plan of compromise, restructure, or arrangement in any Insolvency
Proceeding, then, in view of the impracticability and extreme difficulty of ascertaining the actual
amount of damages to the Lender Group or profits lost by the Lender Group as a result of such early
termination, and by mutual agreement of the parties as to a reasonable estimation and calculation
of the lost profits or damages of the Lender Group, Borrower shall pay the Applicable Prepayment
Premium to Agent (to be allocated based upon letter agreements between Agent and individual
Lenders), measured as of the date of such termination; provided, however, the
Lender Group waives the Applicable Prepayment Premium in the event such early termination results
from a financing provided by Wells Fargo Bank, N.A., or any of its affiliates.

4. INTENTIONALLY DELETED.

5. REPRESENTATIONS AND WARRANTIES.

     In order to induce the Lender Group to enter into this Agreement, Borrower makes the following
representations and warranties to the Lender Group which shall be true, correct, and complete, in
all material respects, as of the date hereof, and shall be true, correct, and complete, in all
material respects, as of the date hereof, and at and as of the date of the making of each Advance
(or other extension of credit) made thereafter, as though made on and as of the date of such
Advance (or other extension of credit) (except to the extent that such representations and
warranties relate solely to an earlier date) and such representations and warranties shall survive
the execution and delivery of this Agreement:

     5.1. No Encumbrances. Borrower, Pledging Subsidiaries, the LLC, and the Partnerships
have good, valid and indefeasible title to its Collateral, free and clear of Liens except for
Permitted Liens, including but not limited to:

     (a) the Borrowing Base Properties and the working interests and the net revenue
interests with respect thereto listed on Schedule 5.1(a); and

     (b) all rights under the Material Contracts listed on Schedule 5.1(b).

     5.2.  Intentionally Deleted.

     5.3.  Intentionally Deleted.

     5.4. Intentionally Deleted.

     5.5.  Intentionally Deleted.

     5.6. Intentionally Deleted.

     5.7. Location of Chief Executive Office; FEIN. The chief executive office of Borrower
and its Subsidiaries is located at the address indicated in Schedule 5.7, and the FEIN for
Borrower and each of its Subsidiaries is identified in Schedule 5.7.

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     5.8. Due Organization and Qualification; Subsidiaries.

     (a) Borrower and each of its Subsidiaries is duly organized and existing and in good
standing under the laws of the jurisdiction of its organization and qualified to do business
in each state where the failure to be so qualified reasonably could be expected to have a
Material Adverse Change.

     (b) Set forth on Schedule 5.8(b), is a complete and accurate description of the
authorized capital Stock of Borrower, by class, and, as of the date hereof, a description of
the number of shares of each such class that are issued and outstanding. Other than as
described on Schedule 5.8(b), there are no subscriptions, options, warrants, or
calls relating to any shares of Borrower’s capital Stock, including any right of conversion
or exchange under any outstanding security or other instrument. Borrower is not subject to
any obligation (contingent or otherwise) to repurchase or otherwise acquire or retire any
shares of its capital Stock or any security convertible into or exchangeable for any of its
capital Stock.

     (c) Set forth on Schedule 5.8(c), is a complete and accurate list of Borrower’s
direct and indirect Subsidiaries, showing: (i) the jurisdiction of their organization; (ii)
the number of shares of each class of common and preferred Stock authorized for each of such
Subsidiaries; (iii) the number and the percentage of the outstanding shares of each such
class owned directly or indirectly by Borrower; and (iv) which Subsidiaries have been
designated as Unrestricted Subsidiaries. All of the outstanding capital Stock of each such
Subsidiary has been validly issued and is fully paid and non-assessable.

     (d) Except as set forth on Schedule 5.8(c), there are no subscriptions,
options, warrants, or calls relating to any shares of Borrower’s Subsidiaries’ capital
Stock, including any right of conversion or exchange under any outstanding security or other
instrument. Neither Borrower nor any of its Subsidiaries is subject to any obligation
(contingent or otherwise) to repurchase or otherwise acquire or retire any shares of any
capital Stock or any security convertible into or exchangeable for any such capital Stock.

     5.9. Due Authorization; No Conflict.

     (a) The execution, delivery, and performance by Borrower of this Agreement and by
Borrower and each of its Subsidiaries of the other Loan Documents to which it is a party
have been duly authorized by all necessary action on the part of Borrower and its
Subsidiaries.

     (b) The execution, delivery, and performance by Borrower and each of its Subsidiaries
of this Agreement and the Loan Documents to which it is a party do not and will not (i)
violate any provision of federal, state, or local law or regulation applicable to Borrower
or any of its Subsidiaries, the Governing Documents of Borrower or any of its Subsidiaries,
or any order, judgment, or decree of any court or other Governmental Authority binding on
Borrower or any of its Subsidiaries, (ii) conflict with, result in a breach of, or
constitute (with due notice or lapse of time or both) a default under any material
contractual obligation of Borrower or any of its Subsidiaries, (iii) result in or require
the creation or imposition of any Lien of any nature whatsoever upon any properties or
assets of Borrower or any of its Subsidiaries, other than Permitted Liens, or (iv) require
any approval of interestholders of Borrower or any of its Subsidiaries or any approval or
consent of any Person under any material contractual obligation of Borrower or any of its
Subsidiaries.

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     (c) Other than the filing of financing statements, fixture filings, and the recordation
of the Mortgages, the execution, delivery, and performance by Borrower and each of its
Subsidiaries of this Agreement and the other Loan Documents to which it is a party do not
and will not require any registration with, consent, or approval of, or notice to, or other
action with or by, any Governmental Authority or other Person.

     (d) This Agreement and the other Loan Documents to which Borrower and each of its
Subsidiaries is a party, and all other documents contemplated hereby and thereby, when
executed and delivered by Borrower and each of its Subsidiaries will be the legally valid
and binding obligations of Borrower and its Subsidiaries, enforceable against Borrower and
each such Subsidiary in accordance with their respective terms, except as enforcement may be
limited by equitable principles or by bankruptcy, insolvency, reorganization, moratorium, or
similar laws relating to or limiting creditors’ rights generally.

     (e) The Agent’s Liens are validly created, perfected, and first priority Liens, subject
only to Permitted Liens.

     5.10. Litigation. Other than those matters disclosed on Schedule 5.10, there
are no actions, suits, or proceedings pending or, to the best knowledge of Borrower, threatened
against Borrower, any of its Subsidiaries, the LLC or any Partnership except for (a) matters that
are fully covered by insurance (subject to customary deductibles), and (b) matters arising after
the date hereof that, if decided adversely to Borrower, any of its Subsidiaries, the LLC or any
Partnership, as applicable, reasonably could not be expected to result in a Material Adverse
Change.

     5.11. No Material Adverse Change. All financial statements relating to Borrower and
its Subsidiaries that have been delivered by Borrower to Agent and the Lenders have been prepared
in accordance with GAAP (except, in the case of unaudited financial statements, for the lack of
footnotes and schedules and being subject to year-end audit adjustments) and present fairly in all
material respects, the financial condition of Borrower and its Subsidiaries as of the date thereof
and results of operations for the period then ended. There has not been a Material Adverse Change
with respect to Borrower and its Subsidiaries taken as a whole since the date of the latest
financial statements submitted to the Lender Group on or before the date hereof.

     5.12. Fraudulent Transfer.

     (a) Borrower and each of the Pledging Subsidiaries is Solvent.

     (b) The value of all properties of each of Borrower and the Pledging Subsidiaries at
their present fair saleable value on a going concern basis (i.e., the amount that may be
realized within a reasonable time, considered to be six months to one year, either through
collection or sale at the regular market value, conceiving the latter as the amount that
could be obtained for such properties within such period by a capable and diligent
businessman from an interested buyer who is willing to purchase under ordinary selling
conditions), exceeds the amount of all its debts and liabilities (including contingent,
subordinated, unmatured and unliquidated liabilities);

     (c) Neither Borrower nor any of the Pledging Subsidiaries has unreasonably small
capital with which to conduct its business operations as heretofore conducted;

     (d) Each of Borrower and the Pledging Subsidiaries has sufficient cash flow to enable
it to pay its debts as they mature; and

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     (e) No transfer of property is being made by Borrower or any of the Pledging
Subsidiaries and no obligation is being incurred by Borrower or any of the Pledging
Subsidiaries in connection with the transactions contemplated by this Agreement or the other
Loan Documents with the intent to hinder, delay, or defraud either present or future
creditors of Borrower or any of the Pledging Subsidiaries.

     5.13. Employee Benefits. Neither Borrower, nor any of its Subsidiaries, or any of
their ERISA Affiliates maintains or contributes to any Benefit Plan.

     5.14. Environmental Condition. Except as set forth on Schedule 5.14, (a) to
Borrower’s knowledge, none of the properties or assets of Borrower or any of its Subsidiaries has
ever been used by Borrower or any of its Subsidiaries or by previous owners or operators in the
disposal of, or to produce, store, handle, treat, release, or transport, any Hazardous Materials,
where such use, production, storage, handling, treatment, release or transport was in violation, in
any material respect, of applicable Environmental Law, (b) to Borrower’s knowledge, none of the
properties or assets of Borrower or any of its Subsidiaries has ever been designated or identified
in any manner pursuant to any environmental protection statute as a Hazardous Materials disposal
site, (c) neither Borrower nor any of its Subsidiaries has received notice that a Lien arising
under any Environmental Law has attached to any revenues or to any Real Property or Oil and Gas
Properties owned or operated by Borrower or any of its Subsidiaries, and (d) neither Borrower nor
any of its Subsidiaries has received a summons, citation, notice, or directive from the United
States Environmental Protection Agency or any other federal or state governmental agency concerning
any action or omission by Borrower or any of its Subsidiaries resulting in the releasing or
disposing of Hazardous Materials into the environment.

     5.15. Brokerage Fees. Neither Borrower nor any of its Subsidiaries has utilized the
services of any broker or finder in connection with Borrower’s obtaining financing from the Lender
Group under this Agreement and no brokerage commission or finders fee is payable by Borrower or any
of its Subsidiaries in connection herewith.

     5.16. Intellectual Property. Borrower and each of its Subsidiaries owns, or holds
licenses in, all trademarks, trade names, copyrights, patents, patent rights, and licenses that are
necessary to the conduct of its business as currently conducted. Attached hereto as Schedule
5.16 is a true, correct, and complete listing of all material patents, patent applications,
trademarks, trademark applications, copyrights, and copyright registrations as to which Borrower or
any of its Subsidiaries is the owner or is an exclusive licensee.

     5.17. Leases. Borrower and its Subsidiaries enjoy peaceful and undisturbed possession
under all leases material to the business of Borrower and its Subsidiaries and to which Borrower or
any of its Subsidiaries is a party or under which Borrower and its Subsidiaries are operating. All
of such leases are valid and subsisting and no material default by Borrower or any of its
Subsidiaries exists under any of them.

     5.18. DDAs. Set forth on Schedule 5.18 are all of the DDAs of Borrower and
its Subsidiaries, including, with respect to each depository (i) the name and address of such
depository, and (ii) the account numbers of the accounts maintained with such depository.

     5.19. Complete Disclosure. All factual information (taken as a whole) furnished by or
on behalf of Borrower and its Subsidiaries in writing to Agent or any Lender (including all
information contained in the Schedules hereto or in the other Loan Documents) for purposes of or in
connection with this Agreement, the other Loan Documents or any transaction contemplated herein or
therein is, and all other such factual information (taken as a whole) hereafter furnished by or on
behalf of Borrower and its

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Subsidiaries in writing to the Agent or any Lender will be, true and accurate, in all material
respects, on the date as of which such information is dated or certified and not incomplete by
omitting to state any fact necessary to make such information (taken as a whole) not misleading in
any material respect at such time in light of the circumstances under which such information was
provided. On the date hereof, the Projections represent, and as of the date on which any other
Projections are delivered to Agent, such additional Projections represent Borrower’s good faith
best estimate of the future performance of Borrower and its Subsidiaries for the periods covered
thereby.

     5.20. Permitted Indebtedness. Set forth on Schedule 5.20 is a true and
complete list of all Indebtedness of Borrower and its Subsidiaries outstanding immediately prior to
the date hereof that is to remain outstanding after the date hereof and such Schedule accurately
reflects the aggregate principal amount of such Indebtedness and the principal terms thereof.

     5.21. Investment and Holding Company Status. Neither Borrower nor any of its
Subsidiaries is (a) an “investment company” as defined in, or subject to regulation under, the
Investment Company Act of 1940, as amended, or (b) a “holding company”, or a “subsidiary company”
of a “holding company,” or an “affiliate” of a “holding company” or of a “subsidiary company” of a
“holding company” as defined in, or subject to regulation under, the Public Utility Holding Company
Act of 1935, as amended.

     5.22. Taxes. Except as set forth in Schedule 5.22, Borrower and each of its
Subsidiaries has timely filed or caused to be filed all Tax returns and reports required to have
been filed and has paid or caused to be paid all Taxes required to have been paid by it, except (a)
Taxes that are being contested in good faith by appropriate proceedings and for which Borrower has
set aside on its books adequate reserves or (b) to the extent that the failure to do so could not
reasonably be expected to result in a Material Adverse Change.

     5.23. Insurance. Schedule 5.23 sets forth a description of all insurance
maintained by or on behalf of Borrower and its Subsidiaries as of the date hereof. As of the date
hereof, all premiums in respect of such insurance have been paid.

     5.24. Labor Matters. As of the date hereof, there are no strikes, lockouts or
slowdowns against Borrower and its Subsidiaries pending or, to the knowledge of Borrower and its
Subsidiaries, threatened. The hours worked by and payments made to employees of Borrower and its
Subsidiaries have not been in material violation of the Fair Labor Standards Act or any other
applicable Federal, state, local or foreign law dealing with such matters. All payments due from
Borrower and its Subsidiaries, or for which any claim may be made against Borrower or any of its
Subsidiaries, on account of wages and employee health and welfare insurance and other benefits,
have been paid or accrued as a liability on the books of Borrower and its Subsidiaries.

     5.25. Claims and Liabilities. Except as disclosed in Schedule 5.25, neither
Borrower nor any of its Subsidiaries nor any of the Partnerships nor the LLC has accrued any
liabilities under gas purchase contracts for gas not taken, but for which it is liable to pay if
not made up and which, if not paid, would result in a Material Adverse Change. Except as disclosed
in Schedule 5.25, no claims exist against Borrower, any of its Subsidiaries, the LLC or any
of the Partnerships for gas imbalances which claims if adversely determined could result in a
Material Adverse Change. No purchaser of product supplied by Borrower, any of its Subsidiaries,
the LLC or any of the Partnerships has any claim against Borrower, any of its Subsidiaries, the LLC
or any of the Partnerships for product paid for, but for which delivery was not taken as and when
paid for, which claim if adversely determined could result in a Material Adverse Change.

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     5.26. Borrowing Base Properties.

     (a) Each of the Pledging Subsidiaries, the LLC, and each of the Partnerships has good
and indefeasible title to all its Borrowing Base Properties which are Hydrocarbon Interests
and good title to all its Borrowing Base Properties which are personal property, free and
clear of Liens (other than Permitted Liens). With respect to the Borrowing Base Properties
set forth on Schedule 5.1(a), after giving full effect to the Permitted Liens, the
net revenue interest is no less than that designated for the Pledging Subsidiaries, the LLC,
and the Partnerships in and to such Borrowing Base Properties and the working interest is no
greater than as set forth for the Pledging Subsidiaries, the LLC, and the Partnerships in
and to such Borrowing Base Properties, and there are no “back-in” or “reversionary”
interests held by third parties which could reduce the net revenue interest or increase the
working interest of the Pledging Subsidiaries, the LLC, or the Partnerships in such
Borrowing Base Properties except as expressly set forth in Schedule 5.1(a). All
wells drilled and Hydrocarbons produced with respect to the Borrowing Base Properties were
drilled and produced in compliance in all material respects with all applicable Governmental
Rules. All of the Borrowing Base Properties described in Schedule 5.1(a), are
covered by the Initial Reserve Report and other reports which Borrower has previously
delivered to and which have been relied upon by Agent and Lenders in connection with this
Agreement and are covered by Mortgages or are owned by (i) Partnerships in which the
Pledging Subsidiaries have granted security interests to Agent pursuant to a Partnership
Pledge Agreement or (ii) by LLC in which A&W has granted a security interest to Agent
pursuant to the LLC Pledge Agreement. No bills are past due and do not give rise to a Lien
(other than Liens arising in the ordinary course of business for sums which are not yet due
and payable under customary agreements or arising by operation of law) and taxes have been
paid with respect to the Borrowing Base Properties other than those which are the subject of
a bona fide dispute which is being contested in good faith by the Pledging Subsidiaries, the
LLC, or the Partnerships by appropriate proceedings as to which a reserve is established in
an amount that is satisfactory to Agent (and if a Lien secures the same or may secure the
same, such Lien is subject to a Permitted Protest).

     (b) All of the marketing arrangements of the Pledging Subsidiaries, the LLC, and the
Partnerships with respect to the Borrowing Base Properties are valid, enforceable and in
full force and effect. As of the date of this Agreement, there do not exist any cumulative
imbalances in gas production or receipt of “take or pay” payments except as disclosed as to
both existence and extent on Schedule 5.26(b) attached hereto.

     (c) There has not been any Material Adverse Change in any of the Borrowing Base
Properties since the date of the most recent Reserve Report.

     5.27. Operations of Borrowing Base Properties. A Pledging Subsidiary is the operator
of each of the Borrowing Base Properties except as set forth in Schedule 5.27.

     5.28. Hedging Agreement. Schedule 5.28 sets forth as of the date hereof, a
true and complete list of all Hedging Agreements (including commodity price swap agreements,
forward agreements or contracts of sale which provide for prepayment for deferred shipment or
delivery of oil, gas or other commodities) of Borrower and its Subsidiaries, the material terms
thereof (including the type, term, effective date, termination date, and notional amounts or
volumes), the net mark to market value thereof, all credit support agreements relating thereto
(including any margin required or supplied), and the counterpart to each such agreement. Borrower
has delivered true and correct copies of each of the Hedging Agreements to Agent prior to the date
of this Agreement.

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     5.29. Operating Costs. As of the date hereof, all costs and expenses incurred in
connection with the operation of the Borrowing Base Properties have been fully paid and discharged
by the Pledging Subsidiaries, the LLC and the Partnerships, except (a) normal costs and expenses
incurred in operating such Borrowing Base Properties for which the Pledging Subsidiaries, the LLC
and the Partnerships have not yet been billed, (b) costs and expenses which are the subject of a
bona fide dispute which is being contested in good faith by the Pledging Subsidiaries, the LLC or
Partnerships by appropriate proceedings as to which a reserve is established on the books of such
Pledging Subsidiary, the LLC or such Partnerships in an amount that is satisfactory to Agent (and
if a Lien secures or may secure such obligation, such Lien is subject to a Permitted Protest).

     5.30. Leases. The oil and gas leases, farm-out agreements, and other agreements
associated with the Borrowing Base Properties are in full force and effect in accordance with their
respective terms and there exist no material violations or defaults in the performance of any
obligation thereunder. Additionally, Borrower is not aware of any event that with notice or lapse
of time or both would constitute a material violation or default under any such oil and gas leases,
farm-out agreements, or other agreements.

     5.31. Material Contracts. Set forth on Schedule 5.1(b) is a complete and
correct list of all Material Contracts in effect or to be in effect as of the date hereof.
Borrower has delivered to the Agent true and complete copies of each Material Contract, as each may
have been amended, that have been requested by the Agent. Each of the Material Contracts is in
full force and effect and no default exists under the terms of any of the Material Contracts.

     5.32. Intentionally Deleted.

     5.33. Common Enterprise. The successful operation and condition of each of the
Borrower, the Pledging Subsidiaries and the other Subsidiaries to which Borrower advances loans
pursuant to Section 6.20 (the “Obligors”) is dependent on the continued successful
performance of the functions of the group of Obligors as a whole and the successful operation of
each of the Obligors is dependent on the successful performance and operation of each other
Obligor. Each Obligor expects to derive benefit (and its board of directors or other governing
body has determined that it may reasonably be expected to derive benefit), directly and indirectly,
from successful operations of each of the other Obligors. Each Obligor expects to derive benefit
(and the boards of directors or other governing body of each Obligor has determined that it may
reasonably be expected to derive benefit), directly and indirectly, from the credit extended by the
Lender Group to Borrower hereunder, both in their separate capacities and as members of the group
of companies. Each Obligor has determined that execution, delivery, and performance of this
Agreement and any other Loan Documents to be executed by such Obligor is within its purpose, will
be of direct and indirect benefit to such Obligor, and is in its best interest.

     5.34. Gathering Systems. The Gathering Systems covered by the Mortgages grant to
Agent, for the benefit of Lenders, a perfected lien upon all transportation facilities necessary to
transport Hydrocarbons produced from the Wells included within the Mortgaged Properties to a
transit point for sale or transportation by a Person who is not an affiliate of Borrower or any of
its Subsidiaries.

6. AFFIRMATIVE COVENANTS.

     Borrower covenants and agrees that, so long as any credit hereunder shall be available and
until full and final payment of the Obligations, Borrower shall do, and shall cause each of its
Subsidiaries to do, all of the following:

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     6.1. Accounting System. Maintain a system of accounting that enables Borrower to
produce financial statements in accordance with GAAP and maintain records pertaining to the
Collateral that contain information as from time to time reasonably may be requested by Agent.
Borrower also shall maintain a joint interest billing and remittance system with respect to the Oil
and Gas Properties of Borrower, its Subsidiaries, the LLC and the Partnerships on which Borrower or
any of its Subsidiaries is the operator and other systems that enable Borrower to show, among other
things, the value, revenues and profits/losses of the Oil and Gas Properties of Borrower and its
Subsidiaries, volume of production, and value of sales of Hydrocarbon production, and positions and
liability exposure of Borrower and its Subsidiaries under the Hedging Agreements on a separate
company-by-company basis, as well as on a consolidated basis.

     6.2. Collateral Reporting. Provide Agent (and if so requested by Agent, with copies
for each Lender) with the following documents at the following times in form satisfactory to Agent:

     (a) by September 1st of each year, a Reserve Report prepared by an Approved Engineer
and reviewed and approved by Agent; and by March 1st of each year, a Reserve Report prepared
by Borrower or an Approved Engineer, as applicable, and reviewed and approved by Agent, all
in accordance with the terms of Section 2.16;

     (b) with the delivery of each Reserve Report, Borrower shall provide to Agent, a
certificate from the president or chief financial officer of Borrower certifying that, to
the best of his knowledge: (i) the information contained in such Reserve Report and any
other information delivered in connection therewith is true and correct; (ii) each of the
Pledging Subsidiaries, the LLC and the Partnerships own good and defensible title to its
Borrowing Base Properties evaluated in such Reserve Report and are free of all Liens except
for Permitted Liens; (iii) except as set forth on an exhibit to the certificate, on a net
basis there are no gas imbalances, take or pay or other prepayments with respect to the
Borrowing Base Properties evaluated in such Reserve Report which would require the Pledging
Subsidiaries, the LLC or the Partnerships to deliver Hydrocarbons produced from such
Borrowing Base Properties at some future time without then or thereafter receiving full
payment therefor; (iv) none of the Borrowing Base Properties has been sold since the date of
the last Borrowing Base determination; (v) if requested by Agent, attached to the
certificate is a list of all Persons disbursing proceeds to Borrower, the Pledging
Subsidiaries, the LLC or the Partnerships from the Borrowing Base Properties; and (vi) set
forth on a schedule attached to the certificate is the PV-10 Value Reserve Report value of
all Borrowing Base Properties together with a list of the Wells that are owned by the
Partnerships and the LLC;

     (c) as soon as available and in any event within 10 Business Days after the end of each
quarter-annual period, a report setting forth, in form substantially similar to the form set
forth on Schedule 6.2(c), the calculation as of the last Business Day of the
quarter-annual period preceding the date of the delivery by the Borrower of such report, of
the Total Value as determined by the Reserve Report most recently delivered by the Borrower
under Section 6.2(a), each such report shall be accompanied by a certificate of the
president or chief financial officer of Borrower certifying to the completeness and accuracy
of the report, including the calculation of the Total Value comprising the Borrowing Base
Properties;

     (d) as soon as available and in any event within 30 days after the end of each month, a
report setting forth the amount of “funds held for future distribution” as of the close of
the month reported on as reflected in the monthly financial statements of Borrower, together
with a certificate from the president or chief financial officer of Borrower certifying that
Borrower and the Pledging Subsidiaries have paid and are current with respect to all
royalties, overriding

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royalties and operating expenses relating to the Borrowing Base Properties except for
those which are subject to a Permitted Protest;

     (e) upon request by Agent from time to time, copies of lease files, well files and
contract files (including production reports on each Well, marketing contracts, and
information regarding locations of and equipment located on each Well) of each of the
Pledging Subsidiaries, the LLC and the Partnerships with respect to the Borrowing Base
Properties;

     (f) such other information reports, statements, materials and data as to the wells
operated by the Pledging Subsidiaries, the LLC or the Partnerships or in which the Pledging
Subsidiaries, the LLC or Partnerships otherwise have an interest and the accounting and
billing procedures utilized by the Pledging Subsidiaries in connection with such wells as
shall be reasonably requested by Agent including, without limitation, relevant computer
programs, disks and tapes; and

     (g) such other reports as to the Collateral or the business or financial condition of
Borrower, each of its Subsidiaries, the LLC and the Partnerships as Agent may reasonably
request from time to time.

     6.3. Financial Statements, Reports, Certificates. Deliver to Agent, with copies to
each Lender:

     (a) as soon as available, but in any event (i) prior to the occurrence of an Event of
Default, within 45 days after the end of each fiscal quarter of each fiscal year of Borrower
and (ii) after the occurrence of an Event of Default within 30 days after the end of each
calendar month:

     (i) a company prepared consolidated balance sheet, income statement, and
statement of cash flow covering Borrower and its Subsidiaries’ operations during
such period,

     (ii) a company prepared report detailing the aggregate amount of cash dividends
made by the Borrower from July 2002 through such period,

     (iii) a company prepared report detailing the aggregate amount of common and
Class A stock of Borrower repurchased by Borrower during the immediately preceding
twelve month period,

     (iv) a certificate signed by the chief financial officer of Borrower to the
effect that:

     A. the financial statements and reports delivered hereunder have been
prepared in accordance with GAAP (except for the lack of footnotes and being
subject to year-end audit adjustments) and fairly present in all material
respects the financial condition of Borrower and its Subsidiaries,

     B. the representations and warranties of Borrower and its Subsidiaries
contained in this Agreement and the other Loan Documents are true and
correct in all material respects on and as of the date of such certificate,
as though made on and as of such date (except to the extent that such
representations and warranties relate solely to an earlier date),

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     C. there does not exist any condition or event that constitutes a
Default or Event of Default (or, to the extent of any non-compliance,
describing such non-compliance as to which he or she may have knowledge and
what action Borrower has taken, is taking, or proposes to take with respect
thereto), and

     (v) a Compliance Certificate demonstrating, in reasonable detail, compliance at
the end of such period with the applicable financial covenants contained in
Section 7.20,

     (vi) a company prepared report (A) listing all of the Hedging Agreements of
Borrower, its Subsidiaries and Affiliates and (B) detailing the aggregate amount of
Hedging Obligations of Borrower, its Subsidiaries and Affiliates under the Hedging
Agreements,

     (b) as soon as available, but in any event within 90 days after the end of each of
Borrower’s fiscal years,

     (i) financial statements of Borrower and its Subsidiaries for each such fiscal
year, audited by independent certified public accountants reasonably acceptable to
Agent and certified, without any qualifications, by such accountants to have been
prepared in accordance with GAAP (such audited financial statements to include a
balance sheet, income statement, and statement of cash flow and, if prepared, such
accountants’ letter to management),

     (ii) a certificate of such accountants addressed to Agent and Lenders stating
that such accountants do not have knowledge of the existence of any Default or Event
of Default under Section 7.20,

     (c) as soon as available, but in any event within 30 days prior to the start of each of
Borrower’s fiscal years,

     (i) copies of Borrower’s Projections, in form and substance (including as to
scope and underlying assumptions) satisfactory to Agent, in its sole discretion, for
the forthcoming fiscal year, quarter by quarter, certified by the chief financial
officer of Borrower as being such officer’s good faith best estimate of the
financial performance of Borrower and its Subsidiaries during the period covered
thereby,

     (d) if and when filed by Borrower,

     (i) 10-Q quarterly reports, Form 10-K annual reports, and Form 8-K current
reports,

     (ii) any other filings made by Borrower with the SEC,

     (iii) copies of Borrower’s federal income tax returns, and any amendments
thereto, filed with the Internal Revenue Service, and

     (iv) any other information that is provided by Borrower to its shareholders
generally,

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     (e) if and when filed by Borrower and as requested by Agent, satisfactory evidence of
payment of applicable excise taxes in each jurisdictions in which (i) Borrower or any of its
Subsidiaries conducts business or is required to pay any such excise tax, (ii) where the
failure by Borrower or any of its Subsidiaries to pay any such applicable excise tax would
result in a Lien on the properties or assets of Borrower, or (iii) where Borrower’s failure
to pay any such applicable excise tax reasonably could be expected to result in a Material
Adverse Change,

     (f) as soon as Borrower has knowledge of any event or condition that constitutes a
Default or an Event of Default, notice thereof and a statement of the curative action that
Borrower proposes to take with respect thereto, and

     (g) upon the request of Agent, any other report reasonably requested relating to the
financial condition of Borrower and its Subsidiaries.

     In addition to the financial statements referred to above, Borrower agrees to deliver
financial statements prepared on both a consolidated and consolidating basis and that no Subsidiary
of Borrower (other than Eastern Capital Corporation), will have a fiscal year different from that
of Borrower. Borrower agrees that its independent certified public accountants are authorized to
communicate with Agent and to release to Agent whatever financial information concerning Borrower
and its Subsidiaries that Agent reasonably may request. Borrower waives the right to assert a
confidential relationship, if any, it may have with any accounting firm or service bureau in
connection with any information requested by Agent pursuant to or in accordance with this
Agreement, and agrees that Agent may contact directly any such accounting firm or service bureau in
order to obtain such information.

     6.4. Intentionally Deleted.

     6.5. Intentionally Deleted.

     6.6. Maintenance of Properties. Maintain and preserve all of its properties which are
necessary or useful in the proper conduct to its business in good working order and condition,
ordinary wear and tear excepted, and comply at all times with the provisions of all leases to which
it is a party as lessee, so as to prevent any loss or forfeiture thereof or thereunder.

     6.7. Taxes. Cause all assessments and taxes, whether real, personal, or otherwise,
due or payable by, or imposed, levied, or assessed against Borrower or any of its Subsidiaries or
any of their assets to be paid in full, before delinquency or before the expiration of any
extension period, except to the extent that the validity of such assessment or tax shall be the
subject of a Permitted Protest. Borrower will make, and will cause its Subsidiaries to make,
timely payment or deposit of all tax payments and withholding taxes required of it by applicable
laws, including those laws concerning F.I.C.A., F.U.T.A., state disability, and local, state, and
federal income taxes, and will, upon request, furnish Agent with proof satisfactory to Agent
indicating that Borrower and each of its Subsidiaries has made such payments or deposits. Borrower
shall deliver satisfactory evidence of payment of applicable excise taxes in each jurisdiction in
which Borrower or any Subsidiary is required to pay any such excise tax.

     6.8. Insurance.

     (a) At Borrower’s expense, maintain insurance respecting its property and assets
wherever located, covering loss or damage by fire, theft, explosion, and all other hazards
and risks as ordinarily are insured against by other Persons engaged in the same or similar
businesses. Borrower also shall maintain, and shall cause each of its Subsidiaries to
maintain, business interruption, public liability, and product liability insurance, as well
as insurance against larceny,

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embezzlement, and criminal misappropriation. All such policies of insurance shall be
in such amounts and with such insurance companies as are reasonably satisfactory to Agent.
Borrower shall deliver copies of all such policies to Agent with a satisfactory lender’s
loss payable endorsement naming Agent as sole loss payee or additional insured, as
appropriate. Each policy of insurance or endorsement shall contain a clause requiring the
insurer to give not less than 30 days prior written notice to Agent in the event of
cancellation of the policy for any reason whatsoever.

     (b) Borrower shall give Agent prompt notice of any loss covered by such insurance.
With respect to the Mortgaged Properties, Agent shall have the exclusive right to adjust any
losses payable under any such insurance policies in excess of $50,000, without any liability
to Borrower or any of its Subsidiaries whatsoever in respect of such adjustments. Any
monies received as payment for any loss under any insurance policy mentioned above (other
than liability insurance policies) or as payment of any award or compensation for
condemnation or taking by eminent domain, shall be paid over to Agent to be applied at the
option of the Required Lenders either to the prepayment of the Obligations or shall be
disbursed to Borrower under staged payment terms reasonably satisfactory to the Required
Lenders for application to the cost of repairs, replacements, or restorations. Any such
repairs, replacements, or restorations shall be effected with reasonable promptness and
shall be of a value at least equal to the value of the items or property destroyed prior to
such damage or destruction.

     (c) Neither Borrower nor any Subsidiary shall take out separate insurance concurrent in
form or contributing in the event of loss with that required to be maintained under this
Section 6.8, unless Agent is included thereon as named insured with the loss payable
to Agent under a lender’s loss payable endorsement or its equivalent. Borrower immediately
shall notify Agent whenever such separate insurance is taken out, specifying the insurer
thereunder and full particulars as to the policies evidencing the same, and copies of such
policies promptly shall be provided to Agent.

     6.9. Hedging Agreements. Borrower will, and will cause each Pledging Subsidiary, the
Partnerships and the LLC (for purpose of this Section the Borrower, Pledging Subsidiaries, the
Partnerships and the LLC are called the “Borrowing Base Entities”) to, maintain in effect at all
times on a continuous basis one or more Hedging Agreements with respect to their natural gas
production with the Bank Product Provider or other investment grade counterparties, rated Aa3 or
better by Moody’s, A+ or better according to Standard & Poor’s, or the equivalent by a rating
agency acceptable to Agent or other Persons acceptable to Lender which Hedging Agreements taken
together shall at all times extend at least twelve (12) months into the future and cover aggregate
notional volumes of natural gas equal to not less than 30% and not more than 85% of the forecasted
natural gas production from Oil and Gas Properties of the Borrowing Base Entities, classified as
Proved Developed Producing Reserves as of the date of the most recent Reserve Report. The Hedging
Agreements shall be used solely as a part of normal and prudent business operations as a risk
management strategy and/or hedge against changes resulting from market conditions related to the
Borrowing Base Entities’ oil and gas operations and not as a means to speculate for investment
purposes on trends and shifts in financial or commodities markets. Borrower shall notify Agent
immediately upon becoming aware (in any event not later than the close of business on the same
Business Day) that the production of natural gas by any of the Borrowing Base Entities could
reasonably be expected to be insufficient to meet its obligations under any Hedging Agreements.

     6.10. Compliance with Laws. Comply with all Governmental Rules applicable to
Borrower, each of its Subsidiaries, and their respective Properties.

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     6.11. Payment of Trade Liabilities. Within sixty (60) days after the same become
due pay all liabilities and debt owed by Borrower and each of its Subsidiaries on ordinary trade
terms to vendors, suppliers and other Persons providing goods and services used by Borrower and
each Subsidiary in the ordinary course of its business.

     6.12. Brokerage Commissions. Pay any and all brokerage commission or finder’s fees
incurred in connection with or as a result of Borrower’s obtaining financing from the Lender Group
under this Agreement. Borrower agrees and acknowledges that payment of all such brokerage
commissions or finders fees shall be the sole responsibility of Borrower, and Borrower agrees to
indemnify, defend, and hold Agent and the Lender Group harmless from and against any claim of any
broker or finder arising out of Borrower’s obtaining financing from the Lender Group under this
Agreement.

     6.13. Existence. At all times preserve and keep in full force and effect the valid
existence and good standing of Borrower and each of its Subsidiaries and any rights and franchises
material to the business of Borrower and its Subsidiaries.

     6.14. Environmental.

     (a) Keep any property either owned or operated by Borrower or any of its Subsidiaries
free of any Environmental Liens or post bonds or other financial assurances sufficient to
satisfy the obligations or liability evidenced by such Environmental Liens,

     (b) comply, in all material respects, with Environmental Laws and provide to Agent
documentation of such compliance which Agent reasonably requests,

     (c) promptly notify Agent of any release of a Hazardous Material of any reportable
quantity from or onto property owned or operated by Borrower or any of its Subsidiaries and
take any Remedial Actions required to abate said release or otherwise to come into
compliance with applicable Environmental Law, and

     (d) promptly provide Agent with written notice within 10 days of the receipt of any of
the following: (i) notice that an Environmental Lien has been filed against any of the real
or personal property of Borrower or any of its Subsidiaries, (ii) commencement of any
Environmental Action or notice that an Environmental Action will be filed against Borrower
or any of its Subsidiaries, and (iii) notice of a violation, citation, or other
administrative order which reasonably could be expected to result in a Material Adverse
Change.

     6.15. Disclosure Updates. Promptly and in no event later than 5 Business Days after
obtaining knowledge thereof, (a) notify Agent if any written information, exhibit, or report
furnished to Agent or the Lender Group contained any untrue statement of a material fact or omitted
to state any material fact necessary to make the statements contained therein not misleading in
light of the circumstances in which made, and (b) correct any defect or error that may be
discovered therein or in any Loan Document or in the execution, acknowledgement, filing, or
recordation thereof. The foregoing to the contrary notwithstanding, any notification pursuant to
the foregoing provision will not cure or remedy the effect of the prior untrue statement of a
material fact or omission of any material fact nor shall any such notification have the affect of
amending or modifying this Agreement or any of the Schedules hereto.

     6.16. Notices of Material Events. Promptly, and in any event within three (3)
Business Days upon Borrower’s becoming aware of the following events, furnish to Agent and each
Lender written notice of the following:

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     (a) the occurrence of any Default;

     (b) (i) the filing or commencement of any action, suit or proceeding by or before any
arbitrator or Governmental Authority against or affecting Borrower, any of its Subsidiaries,
the LLC or any of the Partnerships or (ii) the occurrence of any adverse development with
respect to any action, suit or proceeding previously disclosed to the Agent or the Lenders
pursuant to this Agreement, in each case if such action, suit or proceeding could reasonably
be expected to result in a Material Adverse Change;

     (c) (i) any claim by any Person against Borrower or any of its Subsidiaries of
nonpayment of, or (ii) any attempt by any Person to collect upon or enforce, any accounts
payable of Borrower or any of its Subsidiaries, in the case of any single account payable in
excess of $500,000.00, or in the case of all accounts payable in the aggregate in excess of
$3,000,000.00;

     (d) (i) any and all enforcement, cleanup, removal or other governmental or regulatory
actions instituted, completed or threatened or other environmental claims against Borrower
or any of its Subsidiaries or any of their respective Properties pursuant to any applicable
Environmental Laws which could result in a Material Adverse Change, and (ii) any
environmental or similar condition on any real property adjoining or in the vicinity of the
property of Borrower or any of its Subsidiaries that could reasonably be anticipated to
cause such property or any part thereof to be subject to any material restrictions on the
ownership, occupancy, transferability or use of such property under any Environmental Laws;
and

     (e) any other development that results in, or could reasonably be expected to result
in, a Material Adverse Change. Each notice delivered under this Section 6.16 shall
be accompanied by a statement of the president or chief financial officer of Borrower
setting forth the details of the event or development requiring such notice and any action
taken or proposed to be taken with respect thereto.

     6.17. Information Regarding Collateral. Promptly, and in any event within five (5)
Business Days upon becoming aware of the following changes, furnish to the Agent written notice of
any change (i) in the corporate name of Borrower or any of its Subsidiaries or in any trade name
used by Borrower or any of its Subsidiaries to identify it in the conduct of its business or in the
ownership of its properties, (ii) in the location of Borrower’s or any of its Subsidiaries’ chief
executive office, its principal place of business, any office in which it maintains books or
records relating to Collateral or any office or facility at which Collateral is located (including
the establishment of any such new office or facility), (iii) in Borrower’s, any of its
Subsidiaries’, the LLC’s or any of the Partnership’s identity, corporate structure, or jurisdiction
of incorporation, organization or formation, or (iv) in Borrower’s, any of its Subsidiaries’, the
LLC’s or any Partnership’s Federal Taxpayer Identification Number. Borrower agrees not to effect
or permit any change referred to in the preceding sentence unless all filings have been made under
the Uniform Commercial Code or otherwise that are required in order for the Agent to continue at
all times following such change to have a valid, legal and perfected liens and security interest in
all the Collateral. Borrower also agrees promptly to notify the Agent if any material portion of
the Collateral is damaged or destroyed.

     6.18. Payment of Indebtedness. Pay the Indebtedness of Borrower and its Subsidiaries
and other obligations, including Tax liabilities of Borrower and its Subsidiaries, before the same
shall become delinquent or in default, except where (a) the validity or amount thereof is being
contested in good faith by appropriate proceedings, (b) Borrower has set aside on its books
adequate reserves with respect thereto in accordance with GAAP, (c) such contest effectively
suspends collection of the contested obligation and

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the enforcement of any Lien securing such obligation and (d) the failure to make payment
pending such contest could not reasonably be expected to result in a Material Adverse Change.

     6.19. Books and Records; Inspection and Audit Rights.

     (a) Keep proper books of record and account in which full, true and correct entries are
made of all dealings and transactions in relation to the business and activities of Borrower
and its Subsidiaries. Borrower will permit, and will cause each of its Subsidiaries to
permit, any representatives designated by the Agent or any Lender to visit and inspect the
properties of Borrower and its Subsidiaries, to examine and make extracts from their books
and records, and to discuss their affairs, finances and condition with their officers and
independent accountants, all at such reasonable times and as often as reasonably requested.
Borrower shall pay any reasonable fees of such independent public accountant incurred in
connection with the Agent’s or such Lender’s exercise of its rights pursuant to this
Section. Furthermore, Borrower will permit the Agent or any Lender, or its agents, at the
cost and expense of the Borrower, to enter upon the Mortgaged Properties and all parts
thereof, for the purpose of investigating and inspecting the condition and operation
thereof, and shall permit reasonable access to the field offices and other offices,
including the principal place of business, of Borrower and its Subsidiaries to inspect and
examine the Mortgaged Properties and the records of Borrower and its Subsidiaries with
respect thereto.

     (b) Without limiting the generality of Section 6.19(a), permit any
representatives designated by the Agent (including any consultants, accountants, engineers,
lawyers and appraisers retained by the Agent) to conduct evaluations, inspections of the
Borrowing Base Properties or of the Borrower’s or any Approved Engineer’s assessment of the
condition or value thereof, all at such reasonable times and as often as reasonably
requested. Borrower shall pay the reasonable fees and expenses of any representatives
retained by the Agent to conduct any such evaluation or inspection.

     6.20. Use of Proceeds and Letters of Credit. The proceeds of the Term Loan and
Advances will be used by Borrower, subject to the terms of Section 7.20, for (a) Energy
Business activities and (b) the advancing of loans for Energy Business activities to the
Subsidiaries, provided that, with respect to such loans, Borrower and such Subsidiaries have
complied with the provisions of Section 7.13(b). For avoidance of doubt, as of the date
hereof, loans by the Borrower with proceeds of the Term Loan and Advances to the Pledging
Subsidiaries and ECA Holdings, LP comply with Section 7.13(b). No part of the proceeds of
the Term Loan or any Advance will be used, whether directly or indirectly, for any purpose that
entails a violation of any of the regulations of the Board, including Regulations G, U and X.
Letters of Credit will be issued only to support normal and customary oil and gas operations
undertaken by the Pledging Subsidiaries in the ordinary course of business.

     6.21. Further Assurances.

     (a) Execute, and cause the appropriate Subsidiaries to execute, any and all further
documents, financing statements, agreements and instruments, and take all such further
actions (including the filing and recording of financing statements, fixture filings,
mortgages, deeds of trust and other documents), which may be required under any applicable
law, or which the Agent may request, to effectuate the transactions contemplated by the Loan
Documents or to grant, preserve, protect or perfect the Liens created or intended to be
created by the Loan Documents or the validity or priority of any such Lien, all at the
expense of the Borrower. Borrower also agrees to provide to the Agent, from time to time
upon request of the Agent, information which is in the possession of the Borrower or
otherwise reasonably obtainable by it, satisfactory to the Agent as

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to the ownership of the Collateral, and the perfection and priority of the Liens
created or intended to be created by the Loan Documents.

     (b) Borrower hereby authorizes the Agent to file one or more financing or continuation
statements, and amendments thereto, relative to all or any part of the Collateral without
the signature of Borrower or any of its Subsidiaries where permitted by law. A carbon,
photographic or other reproduction of the Loan Documents or any financing statement covering
the Collateral or any part thereof shall be sufficient as a financing statement where
permitted by law.

     (c) Without limiting any other provision of this Section 6.21, take such
actions and execute and deliver such documents and instruments as the Agent shall require to
ensure that the Agent shall, at all times, have received currently effective, duly executed
Loan Documents encumbering (i) the Gathering Systems and (ii) Oil and Gas Properties of
Borrower and its Subsidiaries constituting 80% of the value of the Total Proved Developed
Producing Reserves as reflected in the Initial Reserve Report (with accompanying letters in
lieu of transfer orders) and satisfactory title evidence in form and substance reasonably
acceptable to the Agent in its business judgment as to ownership of such Gathering Systems
and Oil and Gas Properties.

     (d) If the Agent shall determine that, as of the date of any Borrowing Base
redetermination, Borrower shall have failed to comply with the preceding Section
6.21(c), the Agent may notify the Borrower in writing of such failure and, within thirty
(30) days from and after receipt of such written notice by the Borrower, the Borrower shall
cause the Pledging Subsidiaries or any other Subsidiary of Borrower to, execute and deliver
to the Agent for the benefit of the Lender Group supplemental or additional Mortgages, in
form and substance satisfactory to the Agent and its counsel, securing payment of the
Obligations and covering additional Oil and Gas Properties of the Pledging Subsidiaries or
such other Subsidiary not then encumbered by any Mortgage (together with current valuations,
engineering reports, and title evidence (which title evidence shall be consistent with
customarily accepted title information in the geographical region in which such additional
Oil and Gas Properties are situated) applicable to the additional Oil and Gas Properties to
be mortgaged and such other documents as the Agent may require, including opinions of
counsel, each of which shall be in form and substance reasonably satisfactory to the Agent)
such that the Agent shall have received currently effective duly executed Mortgages
encumbering Oil and Gas Properties of Borrower or any of its Subsidiaries constituting at
least 80% of the Total Proved Developed Producing Reserves (with accompanying letters in
lieu of transfer orders) and satisfactory title evidence (which title evidence shall be
consistent with customarily accepted title information in the geographical region in which
such additional Oil and Gas Properties are situated) as to ownership of such additional Oil
and Gas Properties.

     6.22. Maintenance and Operation of Borrowing Base Properties. Consistent with the
standards of a reasonably prudent operator:

     (a) maintain, develop, and operate the Borrowing Base Properties and the oil and gas
gathering assets of Borrower and its Subsidiaries in a good and workmanlike manner, and
observe and comply with all of the terms and provisions, express or implied, of all
Hydrocarbon Interests relating to the Borrowing Base Properties so long as the Hydrocarbon
Interests are capable of producing Hydrocarbons and accompanying elements in quantities and
at prices providing for continued efficient and profitable operation of business;

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     (b) comply in all material respects with the Material Contracts and all other contracts
and agreements applicable to or relating to the Borrowing Base Properties or the production
and sale of Hydrocarbons and accompanying elements therefrom;

     (c) at all times, maintain, preserve, and keep all operating Equipment used with
respect to the Borrowing Base Properties, and oil and gas gathering assets of Borrower and
its Subsidiaries in proper repair, working order and condition, and make all necessary or
appropriate repairs, renewals, replacements, additions and improvements thereto so that the
efficiency of the operating Equipment shall at all times be properly preserved and
maintained; and

     (d) with respect to the Borrowing Base Properties, and oil and gas gathering assets of
Borrower and its Subsidiaries which are operated by operators other than Borrower or its
Subsidiaries, seek to enforce the operators’ contractual obligations to maintain, develop,
and operate such properties subject to the applicable operating agreements.

     6.23. Collateral Value. Unless otherwise consented to by Agent in writing, within
sixty (60) days after a Reserve Report or other report or information is delivered pursuant to
Section 6.2 that shows the Total Value is less than the amount determined by multiplying
the Maximum Loan Amount by 1.5 (“Collateral Value Amount”), Borrower shall either (a) execute,
and/or cause to be executed and delivered to the Agent supplemental or additional Mortgages, in
form and substance satisfactory to the Agent and its counsel, securing payment of the Obligations
and covering other Oil and Gas Properties directly owned by Borrower, one or more of the Pledging
Subsidiaries or any other Subsidiary of Borrower which are not then covered by any Mortgage and
having a value (as determined by Agent in its sole discretion), in addition to the other Oil and
Gas Properties already subject to a Mortgage, sufficient to cause the Total Value to exceed the
Collateral Value Amount, or (b) reduce the Total Usage to an amount equal to or less than 65% of
the newly established Total Value.

     6.24. Obligation to Pay. Borrower hereby unconditionally promises to pay Agent for
the benefit of the Lenders, in accordance with the terms and conditions of this Credit Agreement
including, without limitation, Section 2.6(d) hereof, the Obligations, and to pay the
Obligations in full on the Maturity Date.

     6.25. Intentionally Deleted.

7. NEGATIVE COVENANTS.

     Borrower covenants and agrees that, so long as any credit hereunder shall be available and
until full and final payment of the Obligations, Borrower will not, and will not permit any of its
Subsidiaries to do any of the following:

     7.1. Indebtedness. Create, incur, assume, permit, guarantee, or otherwise become or
remain, directly or indirectly, liable with respect to any Indebtedness, except:

     (a) Indebtedness evidenced by this Agreement and the other Loan Documents, together
with Indebtedness owed to Underlying Issuers with respect to Underlying Letters of Credit;

     (b) Indebtedness of Borrower and its Subsidiaries set forth on Schedule 5.20;

     (c) refinancings, renewals, or extensions of Indebtedness permitted under clause (b) of
this Section 7.1 (and continuance or renewal of any Permitted Liens associated
therewith) so

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long as: (i) the terms and conditions of such refinancings, renewals, or extensions do
not, in Agent’s reasonable judgment, materially impair the prospects of repayment of the
Obligations by Borrower or materially impair Borrower’s creditworthiness, (ii) such
refinancings, renewals, or extensions do not result in an increase in the principal amount
of the Indebtedness so refinanced, renewed, or extended or add one or more of the Borrower’s
Subsidiaries or Affiliates as liable with respect thereto if such additional Subsidiary or
Affiliate were not liable with respect to the original Indebtedness, (iii) such
refinancings, renewals, or extensions do not result in a shortening of the average weighted
maturity of the Indebtedness so refinanced, renewed, or extended, nor are they on terms or
conditions, that, taken as a whole, are materially more burdensome or restrictive to the
Borrower, and (iv) if the Indebtedness that is refinanced, renewed, or extended was
subordinated in right of payment to the Obligations, then the terms and conditions of the
refinancing, renewal, or extension Indebtedness must include subordination terms and
conditions that are at least as favorable to Agent and the Lender Group as those that were
applicable to the refinanced, renewed, or extended Indebtedness;

     (d) Indebtedness of Borrower not secured by or subject to a Lien in respect of
performance, completion, guarantee, surety, or similar bonds, banker’s acceptances, bills of
exchange, or letters of credit provided by Borrower in the ordinary course of its Energy
Business provided that such Indebtedness does not exceed $2,000,000.00 in the aggregate at
any one time outstanding;

     (e) accounts payable or other obligations of Borrower and its Subsidiaries to trade
creditors created in the ordinary course of its Energy Business in connection with the
obtaining of goods and services provided that all such obligations and liabilities are paid
within 60 days when due;

     (f) Indebtedness of Borrower consisting of obligations in respect of purchase price
adjustments, guaranties or indemnities in connection with the acquisition of assets or
Permitted Dispositions;

     (g) Non-Recourse Debt of any Unrestricted Subsidiary provided such Non-Recourse Debt is
incurred in connection with an acquisition of assets by an Unrestricted Subsidiary permitted
under Section 7.13;

     (h) Unsecured Indebtedness of the Subsidiaries to Borrower;

     (i) Hedging Obligations of the Borrower and its Subsidiaries, provided:

     (i) Hedging Obligations of Borrower and its Subsidiaries other than those of
the Pledging Subsidiaries, the Partnerships, and the LLC and of the Borrower
relating thereto (which are subject to the restriction under (ii) below) shall only
be under contracts entered into in the ordinary course of business for the purpose
of limiting risks that arise in the ordinary course of business of Borrower and its
Subsidiaries and not for the purpose of speculation; and

     (ii) Hedging Obligations of the Pledging Subsidiaries, the Partnerships, and
the LLC and of the Borrower relating thereto shall only be permitted to the extent
set forth in Section 6.9;

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     (j) additional Indebtedness of Borrower not to exceed $5,000,000.00 in the aggregate
during the term of this Agreement provided that the terms and conditions of such
Indebtedness are reasonably satisfactory to Agent; and

     (k) liabilities of Borrower resulting from the sale of Production Payments with respect
to oil, gas, or mineral leases or interests (other than Borrowing Base Properties) to the
extent Borrower does not transfer control of the interest sold to the buyer, and such
liabilities are recorded in accordance with GAAP.

     7.2. Liens. Create, incur, assume, or permit to exist, directly or indirectly, any
Lien on or with respect to any of its assets, of any kind, whether now owned or hereafter acquired,
or any income or profits therefrom, except for:

     (a) Permitted Liens (including Liens that are replacements of Permitted Liens to the
extent that the original Indebtedness is refinanced, renewed, or extended under Section
7.1(e) and so long as the replacement Liens only encumber those assets that secured the
refinanced, renewed, or extended Indebtedness);

     (b) any Lien on Borrowing Base Properties existing on the Closing Date and set forth on
Schedule 7.2; provided that (i) such Lien shall not apply to any other Property or
asset of Borrower or any Subsidiary, and (ii) such Lien shall secure only those obligations
which it secured on the Closing Date; and

     (c) any Lien existing on any Property or asset prior to the acquisition thereof by the
Borrower or any Subsidiary (other than Pledging Subsidiaries) or existing on any Property or
asset of any Person that becomes a Subsidiary after the date of this Agreement prior to the
time such Person becomes a Subsidiary; provided that (i) such Lien is not created in
contemplation of or in connection with such acquisition or such Person becoming a
Subsidiary, as the case may be, (ii) such Lien shall not apply to any other Property or
assets of Borrower or any Subsidiary, and (iii) such Lien shall secure only those
obligations which it secures on the date of such acquisition or the date such Person becomes
a Subsidiary;

     (d) Liens on fixed or capital assets acquired, constructed or improved by Borrower or
any Subsidiary which do not constitute Collateral; provided that (i) such security interests
secure Indebtedness permitted by clause (j) of Section 7.1, (ii) such security
interests and the Indebtedness secured thereby are incurred prior to or within 90 days after
such acquisition or the completion of such asset, (iii) the Indebtedness secured thereby
does not exceed 75% of the cost of acquiring or improving such Oil and Gas Property or fixed
or capital asset, and (iv) such Lien does not apply to any other Property or assets of the
Borrower or any of its Subsidiaries; and

     (e) Liens securing Non-Recourse Debt permitted by Section 7.1 provided the Lien
is limited to the assets acquired by the Unrestricted Subsidiary with the proceeds of the
Non-Recourse Debt.

     7.3. Restrictions on Fundamental Changes.

     (a) Enter into any merger, consolidation, reorganization, or recapitalization, or
reclassify its Stock, except to the extent permitted by the terms of Section 7.11.

     (b) Liquidate, wind up, or dissolve itself (or suffer any liquidation or dissolution).

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     (c) Convey, sell, lease, license, assign, transfer, or otherwise dispose of, in one
transaction or a series of transactions, all or any substantial part of its assets.

     7.4. Disposal of Assets. Other than Permitted Dispositions, convey, sell, lease,
license, assign, transfer, or otherwise dispose of (or enter into an agreement to convey, sell,
lease, license, assign, transfer, or otherwise dispose of) any of the assets of Borrower or any of
its Subsidiaries.

     7.5. Change Name. Change Borrower’s or any Subsidiaries’ name, FEIN, corporate
structure or identity, or add any new fictitious name; provided, however, that
Borrower or any of its Subsidiaries may change its name upon at least 30 days prior written notice
by Borrower to Agent of such change and so long as, at the time of such written notification,
Borrower or any such Subsidiary provides any financing statements or fixture filings necessary to
perfect and continue perfected Agent’s Liens.

     7.6. Guarantee. Guarantee or otherwise become in any way liable with respect to the
obligations of any third Person except by endorsement of instruments or items of payment for
deposit to the account of Borrower or which are transmitted or turned over to Agent;
provided, however, that Borrower may execute guarantees of Indebtedness of its
Subsidiaries to the extent the Indebtedness of such Subsidiary is permitted by the terms of this
Agreement.

     7.7. Nature of Business. Make any change in the principal nature of Borrower’s or any
Subsidiaries’ business.

     7.8. Prepayments and Amendments.

     (a) Except in connection with a refinancing permitted by Section 7.1(c),
prepay, redeem, defease, purchase, or otherwise acquire any Indebtedness of Borrower or any
of its Subsidiaries, other than the Obligations in accordance with this Agreement.

     (b) Except in connection with a refinancing permitted by Section 7.1(c),
directly or indirectly, amend, modify, alter, increase, or change any of the terms or
conditions of any agreement, instrument, document, indenture, or other writing evidencing
or concerning Indebtedness permitted under Sections 7.1(b).

     7.9. Change of Control. Cause, permit, or suffer, directly or indirectly, any Change
of Control.

     7.10. Intentionally Deleted.

     7.11. Distributions. Other than distributions or declaration and payment of dividends
by a Subsidiary to Borrower, make any distribution or declare or pay any dividends (in cash or
other property, other than common Stock) on, or purchase, acquire, redeem, or retire any of
Borrower’s Stock, of any class, whether now or hereafter outstanding; provided,
however, so long as no Default or Event of Default has occurred and is continuing, the
foregoing restrictions shall not apply to:

     (a) Borrower’s paying annual cash dividends in the aggregate not to exceed 15% of
EBITDAX, determined on a rolling four-quarter basis, provided at the time of payment of such
dividends, after giving effect to such payment, either (i) Excess Availability exceeds
$20,000,000.00 or (ii) in the event Excess Availability is equal to or less than
$20,000,000.00, the Fixed Charge Coverage Ratio is equal to or in excess of 1.0 to 1.0 and
Borrower, prior to making any such payment, delivers to Agent a report prepared by the Chief
Financial Officer of Borrower

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setting forth the information and calculations necessary to demonstrate compliance with
the Fixed Charge Coverage Ratio requirement;

     (b) any Subsidiary paying cash dividends to the Borrower or any other Subsidiary at
such times and in such amounts during any fiscal year, as shall be necessary to permit
Borrower to discharge its permitted liabilities;

     (c) Borrower’s repurchasing common and Class A stock of Borrower owned by employees who
terminate their employment or whose employment is terminated by Borrower consistent with the
existing programs between the Borrower and its employees in an amount which when added to
the amounts expended by Borrower pursuant to Section 7.11(d) does not exceed
$2,000,000.00 in any twelve (12) month period;

     (d) Borrower’s repurchasing common and Class A stock of Borrower consistent with
existing programs and practices of Borrower in an amount which when added to the amounts
expended by Borrower pursuant to Section 7.11(c) does not exceed $2,000,000.00 in
any twelve (12) month period; provided, however, if the amount expended by
Borrower pursuant to Section 7.11(c) and Section 7.11(d) is less than
$2,000,000.00 in the aggregate in any twelve (12) month period, an amount equal to the
difference between $2,000,000.00 and the amount expended (the “Carried Over Amount”)
in such twelve (12) month period may be carried over into one or more subsequent years so
long as the aggregate amount expended in any twelve (12) month period, after adding the
Carried Over Amount to the $2,000,000.00 expenditure otherwise permitted under Section
7.11(c) and Section 7.11(d), does not exceed $5,000,000.00; and

     (e) Borrower’s repurchasing common and Class A stock of Borrower consistent with
existing programs and practices of Borrower from the estate of deceased members of the Board
of Directors of Borrower in an amount not to exceed $5,000,000.00 in any twelve (12) month
period.

     7.12. Accounting Methods. Modify or change its method of accounting (other than as
may be required to conform to GAAP) or enter into, modify, or terminate any agreement currently
existing, or at any time hereafter entered into with any third party accounting firm or service
bureau for the preparation or storage of the accounting records of Borrower and its Subsidiaries
without said accounting firm or service bureau agreeing to provide Agent information regarding the
Collateral or the financial condition of the Borrower and its Subsidiaries.

     7.13. Investments. Directly or indirectly, make or acquire any Investment, or incur
any liabilities (including contingent obligations) for or in connection with any Investment,
except:

     (a) Permitted Investments;

     (b) unsecured loans and advances (including loans and advances made by Borrower to any
Subsidiary, including the Pledging Subsidiaries, with the proceeds of the Term Loan and
Advances) from Borrower to any Subsidiary, including the Pledging Subsidiaries, provided
that (i) each such Subsidiary and Pledging Subsidiary executes and delivers to Borrower a
promissory note (the “Intercompany Notes”) evidencing such loans and advances
payable to the order of Borrower, all in form, scope, and content acceptable to Agent, and
(ii) Borrower pledges and assigns the Intercompany Notes to Agent as security for the
payment of the Obligations pursuant to the Borrower’s Security Agreement and endorses the
Intercompany Notes to the order of Agent, all in a form and manner satisfactory to Agent;

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     (c) Investments by Borrower and/or any Subsidiary made or entered into in the ordinary
course of the Energy Business; provided that immediately before and immediately after giving
effect to such Investments, no Default or Event of Default exists;

     (d) capital expenditures by Borrower and the Subsidiaries with respect to the assets
used or useful in the Energy Business conducted by Borrower and the Subsidiaries, to the
extent permitted by Section 7.20(b);

     (e) Investments by Borrower in its Subsidiaries;

     (f) Investments by an Unrestricted Subsidiary with the proceeds of Non-Recourse Debt;
and

     (g) Investments of Borrower and the Subsidiaries existing as of the date of this
Agreement and reflected on Schedule 7.13.

     7.14. Transactions with Affiliates. Directly or indirectly enter into or permit to
exist any transaction with any Affiliate of Borrower except for transactions that are in the
ordinary course of Borrower’s business, upon fair and reasonable terms, that are fully disclosed to
Lender, and that are no less favorable to Borrower than would be obtained in an arm’s length
transaction with a non-Affiliate; provided, however, that Borrower and its
Subsidiaries may engage in drilling program transactions with Borrower’s officers, employees and
directors consistent with past practices of Borrower.

     7.15. Suspension. Suspend or go out of a substantial portion of its business.

     7.16. Intentionally Deleted.

     7.17. Use of Proceeds. Use the proceeds of the Term Loan and the Advances for any
purpose other than (a) on the date hereof, to pay transactional fees, costs, and expenses incurred
in connection with this Agreement, the other Loan Documents, and the transactions contemplated
hereby and thereby, and (b) thereafter, only for the purposes set forth in Section 6.20.

     7.18. Change in Location of Chief Executive Office; Inventory and Equipment with
Bailees. Relocate its chief executive office to a new location without Borrower providing 30
days prior written notification thereof to Agent and so long as, at the time of such written
notification, the Borrower or applicable Subsidiary provides any financing statements or fixture
filings necessary to perfect and continue perfected the Agent’s Liens and also provides to Agent a
Collateral Access Agreement with respect to such new location.

     7.19. Securities Accounts. Establish or maintain any Securities Account unless Agent
shall have received a Control Agreement in respect of such Securities Account. Borrower will not
transfer, and will not permit any of its Subsidiaries to transfer, assets out of any Securities
Account; provided, however, that, so long as no Event of Default has occurred and
is continuing or would result therefrom, Borrower may use such assets (and the proceeds thereof) to
the extent not prohibited by this Agreement.

     7.20. Financial Covenants.

     (a) Fail to maintain:

     (i) Minimum EBITDAX. EBITDAX in an amount equal to or greater than
$40,000,000.00 at the close of each fiscal quarter of Borrower after the date
hereof.

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Compliance of the foregoing covenant will be tested quarterly on a rolling four
quarter basis, commencing with the quarter ending September 30, 2007.

     (ii) Book Net Worth. Book Net Worth of at least $37,000,000.00 at the close of
each fiscal quarter of Borrower after the date hereof; provided that the calculation
of Book Net Worth shall exclude all unrealized losses over all unrealized profits
arising from Hedging Agreements. Compliance of the foregoing covenant will be
tested quarterly, commencing with the quarter ending September 30, 2007.

     (b) Make:

     (i) Capital Expenditures. Upon Excess Availability falling below
$10,000,000.00 in any fiscal year, capital expenditures in such fiscal year of
Borrower in an amount in excess of 120% of the Projections for such fiscal year
delivered to Agent in accordance with the terms of this Agreement and approved by
Agent.

     7.21. Intentionally Deleted.

     7.22. Intentionally Deleted.

8. EVENTS OF DEFAULT.

     Any one or more of the following events shall constitute an event of default (each, an “Event
of Default”) under this Agreement:

     8.1. If Borrower or any of its Subsidiaries fails to pay when due and payable or when declared
due and payable, all or any portion of the Obligations (whether of principal, interest (including
any interest which, but for the provisions of the Bankruptcy Code, would have accrued on such
amounts), fees and charges due Agent or any member of the Lender Group, reimbursement of Lender
Expenses, or other amounts constituting Obligations);

     8.2. If Borrower or any of its Subsidiaries fails to perform, keep, or observe (a) any term,
provision, condition, covenant, or agreement contained in Sections 6.1, 6.2, 6.3, 6.6, 6.7,
6.10, 6.11, 6.12, 6.14, 6.15, 6.16, 6.17, 6.19, 6.21, or 6.22 of this Agreement and such
failure continues for a period of fifteen (15) days after the date of failure; or (b) any other
term, provision, condition, covenant, or agreement in this Agreement or any of the other Loan
Documents;

     8.3. If any material portion of Borrower’s or any of its Subsidiaries’ assets is attached,
seized, subjected to a writ or distress warrant, levied upon, or comes into the possession of any
third Person;

     8.4. If an Insolvency Proceeding is commenced by Borrower or any of its Subsidiaries;

     8.5. If an Insolvency Proceeding is commenced against Borrower or any of its Subsidiaries, and
any of the following events occur: (a) the Borrower or any Subsidiary consents to the institution
of the Insolvency Proceeding against it, (b) the petition commencing the Insolvency Proceeding is
not timely controverted; provided, however, that during the pendency of such
period, each member of the Lender Group shall be relieved of its obligations to extend credit
hereunder, (c) the petition commencing the Insolvency Proceeding is not dismissed within 45
calendar days of the date of the filing thereof; provided, however, that, during
the pendency of such period, Agent (including any successor agent) and each other member of the
Lender Group shall be relieved of its obligation to extend credit hereunder, (d) an interim trustee
is appointed to take possession of all or any substantial portion of the properties or assets of,
or to

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operate all or any substantial portion of the business of, Borrower or any of its
Subsidiaries, or (e) an order for relief shall have been entered therein;

     8.6. If Borrower or any of its Subsidiaries is enjoined, restrained, or in any way prevented
by court order from continuing to conduct all or any material part of its business affairs;

     8.7. If a notice of Lien, levy, or assessment is filed of record with respect to any
Borrower’s or any of its Subsidiaries’ assets by the United States, or any department, agency, or
instrumentality thereof, or by any state, county, municipal, or governmental agency, or if any
taxes or debts owing at any time hereafter to any one or more of such entities becomes a Lien,
whether choate or otherwise, upon Borrower’s or any of its Subsidiaries’ assets and the same is not
paid before such payment is delinquent;

     8.8. If a judgment or other claim becomes a Lien or encumbrance upon any material portion of
Borrower’s or any of its Subsidiaries’ assets or any material portion of the Borrowing Base
Properties located in the State of West Virginia owned by either of the Pledging Subsidiaries;

     8.9. If there is a default in any material agreement to which Borrower or any of its
Subsidiaries is a party and such default (a) occurs at the final maturity of the obligations
thereunder, or (b) results in a right by the other party thereto, irrespective of whether
exercised, to accelerate the maturity of the Borrower’s or its Subsidiaries’ obligations
thereunder, to terminate such agreement, or to refuse to renew such agreement pursuant to an
automatic renewal right therein;

     8.10. If Borrower or any of its Subsidiaries makes any payment on account of Indebtedness that
has been contractually subordinated in right of payment to the payment of the Obligations, except
to the extent such payment is permitted by the terms of the subordination provisions applicable to
such Indebtedness;

     8.11. If any misstatement or misrepresentation exists now or hereafter in any warranty,
representation, statement, or Record made to the Lender Group by Borrower, its Subsidiaries, or any
officer, employee, agent, or director of Borrower or any of its Subsidiaries;

     8.12. Intentionally Deleted;

     8.13. If this Agreement or any other Loan Document that purports to create a Lien, shall, for
any reason, fail or cease to create a valid and perfected and, except to the extent permitted by
the terms hereof or thereof, first priority Lien on or security interest in the Collateral covered
hereby or thereby; or

     8.14. Any provision of any Loan Document shall at any time for any reason be declared to be
null and void, or the validity or enforceability thereof shall be contested by Borrower or any of
its Subsidiaries, or a proceeding shall be commenced by Borrower or any of its Subsidiaries, or by
any Governmental Authority having jurisdiction over Borrower or any of its Subsidiaries, seeking to
establish the invalidity or unenforceability thereof, or Borrower or any of its Subsidiaries shall
deny that Borrower or such Subsidiary has any liability or obligation purported to be created under
any Loan Document.

9. THE LENDER GROUP’S RIGHTS AND REMEDIES.

     9.1. Rights and Remedies. Upon the occurrence, and during the continuation, of an
Event of Default, the Required Lenders (at their election but without notice of their election and
without demand) may authorize and instruct Agent to do any one or more of the following on behalf
of the Lender Group (and Agent, acting upon the instructions of the Required Lenders, shall do the
same on behalf of the Lender Group), all of which are authorized by Borrower:

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     (a) Declare all Obligations, whether evidenced by this Agreement, by any of the other
Loan Documents, or otherwise, immediately due and payable; provided,
however, that upon the occurrence of any Event of Default described in Section
8.4 or Section 8.5, all Commitments shall automatically and immediately expire
and all Obligations shall automatically become immediately due and payable without notice or
demand of any kind;

     (b) Cease advancing money or extending credit to or for the benefit of Borrower under
this Agreement, under any of the Loan Documents, or under any other agreement between any
Obligor and the Lender Group;

     (c) Terminate this Agreement and any of the other Loan Documents as to any future
liability or obligation of the Lender Group, but without affecting any of the Agent’s Liens
in the Collateral and without affecting the Obligations;

     (d) Settle or adjust disputes and claims directly with Account Debtors for amounts and
upon terms which Agent considers advisable, and in such cases, Agent will credit the Loan
Account with only the net amounts received by Agent in payment of such disputed Accounts
after deducting all Lender Group Expenses incurred or expended in connection therewith;

     (e) Without notice to or demand upon Borrower, make such payments and do such acts as
Agent considers necessary or reasonable to protect its liens and security interests in the
Collateral;

     (f) Without notice to Borrower (such notice being expressly waived), and without
constituting a retention of any collateral in satisfaction of an obligation (within the
meaning of the Code), set off and apply to the Obligations any and all (i) balances and
deposits of Borrower held by the Lender Group (including any amounts received in the Cash
Management Accounts), or (ii) Indebtedness at any time owing to or for the credit or the
account of Borrower held by the Lender Group;

     (g) Hold, as cash collateral, any and all balances and deposits of Borrower held by the
Lender Group, and any amounts received in the Cash Management Accounts, to secure the full
and final repayment of all of the Obligations;

     (h) Pursue any and all remedies afforded Agent and/or the Lender Group under the Loan
Documents; and

     (i) The Lender Group shall have all other rights and remedies available to it at law or
in equity pursuant to any other Loan Documents.

     9.2. Remedies Cumulative. The rights and remedies of the Lender Group under this
Agreement, the other Loan Documents, and all other agreements shall be cumulative. The Lender
Group shall have all other rights and remedies not inconsistent herewith as provided under the
Code, by law, or in equity. No exercise by the Lender Group of one right or remedy shall be deemed
an election, and no waiver by the Lender Group of any Event of Default shall be deemed a continuing
waiver. No delay by the Lender Group shall constitute a waiver, election, or acquiescence by it.

10. TAXES AND EXPENSES.

     If Borrower fails to pay any monies (whether taxes, royalties, overriding royalties, operating
costs or expenses, assessments, insurance premiums, or, in the case of leased properties or assets,
rents or other

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amounts payable under such leases) due to third Persons, or fails to make any deposits or
furnish any required proof of payment or deposit, all as required under the terms of this
Agreement, then, Agent, in its sole discretion and without prior notice to Borrower, may do any or
all of the following: (a) make payment of the same or any part thereof, (b) set up such reserves
in Borrower’s Loan Account as Agent deems necessary to protect the Lender Group from the exposure
created by such failure, or (c) in the case of the failure to comply with Section 6.8
hereof, obtain and maintain insurance policies of the type described in Section 6.8 and
take any action with respect to such policies as Agent deems prudent. Any such amounts paid by
Agent shall constitute Lender Group Expenses and any such payments shall not constitute an
agreement by the Lender Group to make similar payments in the future or a waiver by the Lender
Group of any Event of Default under this Agreement. Agent need not inquire as to, or contest the
validity of, any such expense, tax, or Lien and the receipt of the usual official notice for the
payment thereof shall be conclusive evidence that the same was validly due and owing.

11. WAIVERS; INDEMNIFICATION.

     11.1. Demand; Protest. Borrower waives demand, protest, notice of protest, notice of
default or dishonor, notice of payment and nonpayment, nonpayment at maturity, release, compromise,
settlement, extension, or renewal of documents, instruments, chattel paper, and guarantees at any
time held by the Lender Group on which Borrower may in any way be liable.

     11.2. The Lender Group’s Liability for Collateral. Borrower hereby agrees that: (a)
so long as the Lender Group complies with its obligations, if any, under the Code, Agent shall not
in any way or manner be liable or responsible for: (i) the safekeeping of the Collateral, (ii) any
loss or damage thereto occurring or arising in any manner or fashion from any cause, (iii) any
diminution in the value thereof, or (iv) any act or default of any carrier, warehouseman, bailee,
forwarding agency, or other Person, and (b) all risk of loss, damage, or destruction of the
Collateral shall be borne by Borrower.

     11.3. Indemnification. Borrower shall pay, indemnify, defend, and hold the
Agent-Related Persons, the Lender-Related Persons with respect to each Lender, each Participant,
and each of their respective officers, directors, employees, agents, and attorneys-in-fact (each,
an “Indemnified Person”) harmless (to the fullest extent permitted by law) from and against any and
all claims, demands, suits, actions, investigations, proceedings, liabilities, fines, costs,
penalties and damages, and all reasonable fees and disbursements of attorneys, experts, or
consultants and all other costs and expenses actually incurred in connection therewith or in
connection with the enforcement of this indemnification (as and when they are incurred and
irrespective of whether suit is brought), at any time asserted against, imposed upon, or incurred
by any of them (a) in connection with or as a result of or related to the execution, delivery,
enforcement, performance, or administration (including any restructuring or workout with respect
hereto) of this Agreement, any of the other Loan Documents, or the transactions contemplated hereby
or thereby or the monitoring of Borrower’s and its Subsidiaries’ compliance with the terms of the
Loan Documents, (b) with respect to any investigation, litigation, or proceeding related to this
Agreement, any other Loan Document, or the use of the proceeds of the credit provided hereunder
(irrespective of whether any Indemnified Person is a party thereto), or any act, omission, event,
or circumstance in any manner related thereto, and (c) in connection with or arising out of any
presence or release of Hazardous Materials at, on, under, to or from any assets or properties
owned, leased or operated by Borrower or any of its Subsidiaries or any Environmental Actions,
Environmental Liabilities and Costs or Remedial Action related in any way to any such assets or
properties of Borrower or any of its Subsidiaries (all the foregoing, collectively, the
“Indemnified Liabilities”). The foregoing to the contrary notwithstanding, Borrower shall have no
obligation to any Indemnified Person under this Section 11.3 with respect to any
Indemnified Liability that a court of competent jurisdiction finally determines to have resulted
from the gross negligence or willful misconduct of such Indemnified Person. This provision shall
survive the termination of this Agreement and the repayment of the Obligations. If any Indemnified
Person makes

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any payment to any other Indemnified Person with respect to an Indemnified Liability as to
which Borrower was required to indemnify the Indemnified Person receiving such payment, the
Indemnified Person making such payment is entitled to be indemnified and reimbursed by Borrower
with respect thereto. WITHOUT LIMITATION, THE FOREGOING INDEMNITY SHALL APPLY TO EACH INDEMNIFIED
PERSON WITH RESPECT TO INDEMNIFIED LIABILITIES WHICH IN WHOLE OR IN PART ARE CAUSED BY OR ARISE OUT
OF ANY NEGLIGENT ACT OR OMISSION OF SUCH INDEMNIFIED PERSON OR OF ANY OTHER PERSON.

12. NOTICES.

     Unless otherwise provided in this Agreement, all notices or demands by Borrower or Agent to
the other relating to this Agreement or any other Loan Document shall be in writing and (except for
financial statements and other informational documents which may be sent by first-class mail,
postage prepaid) shall be personally delivered or sent by registered or certified mail (postage
prepaid, return receipt requested), overnight courier, electronic mail (at such email addresses as
Borrower or Agent, as applicable, may designate to each other in accordance herewith), or
telefacsimile to Borrower in care of Borrower or to Agent, as the case may be, at its address set
forth below:

	 	If to Borrower:	 	 Energy Corporation of America

4643 South Ulster Street, Suite 1100

Denver, Colorado 80237

Attn: Michael S. Fletcher

Fax No. 303.694.2763
	 
	 	with copies to: 	 	Goodwin & Goodwin, LLP

330 Summers Street, Suite 1500

Charleston, West Virginia 25301-1678

Attn: Tammy J. Owen, Esq.

Fax No. 304.344.9692
	 
	 	If to Agent:	 	 WELLS FARGO FOOTHILL, INC.

2450 Colorado Avenue

Suite 3000 West

Santa Monica, California 90404

Attn: Business Finance Division Manager

Fax No. 310.453.7443
	 
	 	with copies to: 	 	Wells Fargo Foothill, Inc.

1100 Abernathy Road, Suite 1600

Atlanta, Georgia 30328

Attn: Business Division Manager

Fax No. 770.804.0551
	 
	 	with copies to:	 	 Munsch Hardt Kopf & Harr, P.C.

3800 Lincoln Plaza

500 N. Akard

Dallas, Texas 75201-6659

Attn: William A. Lang, Esq.

Fax No. 214.855.7520

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     Agent and Borrower may change the address at which they are to receive notices hereunder,
by notice in writing in the foregoing manner given to the other party. All notices or demands sent
in accordance with this Section 12, other than notices by Agent in connection with
enforcement rights against the Collateral under the provisions of the Code, shall be deemed
received on the earlier of the date of actual receipt or 3 Business Days after the deposit thereof
in the mail. Borrower acknowledges and agrees that notices sent by the Lender Group in connection
with the exercise of enforcement rights against Collateral under the provisions of the Code shall
be deemed sent when deposited in the mail or personally delivered, or, where permitted by law,
transmitted by telefacsimile or any other method set forth above.

13. CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER.

     (a) THE VALIDITY OF THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS (UNLESS EXPRESSLY
PROVIDED TO THE CONTRARY IN ANOTHER LOAN DOCUMENT IN RESPECT OF SUCH OTHER LOAN DOCUMENT),
THE CONSTRUCTION, INTERPRETATION, AND ENFORCEMENT HEREOF AND THEREOF, AND THE RIGHTS OF THE
PARTIES HERETO AND THERETO WITH RESPECT TO ALL MATTERS ARISING HEREUNDER OR THEREUNDER OR
RELATED HERETO OR THERETO SHALL BE DETERMINED UNDER, GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF GEORGIA.

     (b) THE PARTIES AGREE THAT ALL ACTIONS OR PROCEEDINGS ARISING IN CONNECTION WITH THIS
AGREEMENT AND THE OTHER LOAN DOCUMENTS SHALL BE TRIED AND LITIGATED ONLY IN THE STATE AND,
TO THE EXTENT PERMITTED BY APPLICABLE LAW, FEDERAL COURTS LOCATED IN THE COUNTY OF FULTON,
STATE OF GEORGIA, PROVIDED, HOWEVER, THAT ANY SUIT SEEKING ENFORCEMENT
AGAINST ANY COLLATERAL OR OTHER PROPERTY MAY BE BROUGHT, AT AGENT’S OPTION, IN THE COURTS OF
ANY JURISDICTION WHERE AGENT ELECTS TO BRING SUCH ACTION OR WHERE SUCH COLLATERAL OR OTHER
PROPERTY MAY BE FOUND. BORROWER AND EACH MEMBER OF THE LENDER GROUP WAIVE, TO THE EXTENT
PERMITTED UNDER APPLICABLE LAW, ANY RIGHT EACH MAY HAVE TO ASSERT THE DOCTRINE OF
FORUM NON CONVENIENS OR TO OBJECT TO VENUE TO THE EXTENT ANY
PROCEEDING IS BROUGHT IN ACCORDANCE WITH THIS SECTION 13(b).

BORROWER AND EACH MEMBER OF THE LENDER GROUP HEREBY WAIVE THEIR RESPECTIVE RIGHTS TO A JURY TRIAL
OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF ANY OF THE LOAN DOCUMENTS OR ANY OF
THE TRANSACTIONS CONTEMPLATED THEREIN, INCLUDING CONTRACT CLAIMS, TORT CLAIMS, BREACH OF DUTY
CLAIMS, AND ALL OTHER COMMON LAW OR STATUTORY CLAIMS. BORROWER AND EACH MEMBER OF THE LENDER GROUP
REPRESENT THAT EACH HAS REVIEWED THIS WAIVER AND EACH KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY
TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL. IN THE EVENT OF LITIGATION, A COPY OF THIS
AGREEMENT MAY BE FILED AS A WRITTEN CONSENT TO A TRIAL BY THE COURT.

14. ASSIGNMENTS AND PARTICIPATIONS; SUCCESSORS.

     14.1. Assignments and Participations.

     (a) Any Lender may, with the written consent of Agent (provided that no written consent
of Agent shall be required in connection with any assignment and delegation by a Lender

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to an Eligible Transferee), assign and delegate to one or more assignees (each an
“Assignee”) all, or any ratable part of all, of the Obligations, the Commitments and the
other rights and obligations of such Lender hereunder and under the other Loan Documents, in
a minimum amount of $10,000,000.00; provided, however, that Borrower and
Agent may continue to deal solely and directly with such Lender in connection with the
interest so assigned to an Assignee until (i) written notice of such assignment, together
with payment instructions, addresses, and related information with respect to the Assignee,
have been given to Borrower and Agent by such Lender and the Assignee, (ii) such Lender and
its Assignee have delivered to Borrower and Agent an Assignment and Acceptance in form and
substance satisfactory to Agent, and (iii) the assignor Lender or Assignee has paid to Agent
for Agent’s separate account a processing fee in the amount of $5,000.00. Anything
contained herein to the contrary notwithstanding, the consent of Agent shall not be required
(and payment of any fees shall not be required) if such assignment is in connection with any
merger, consolidation, sale, transfer, or other disposition of all or any substantial
portion of the business or loan portfolio of such Lender.

     (b) From and after the date that Agent notifies the assignor Lender (with a copy to
Borrower) that it has received an executed Assignment and Acceptance and payment of the
above-referenced processing fee, (i) the Assignee thereunder shall be a party hereto and, to
the extent that rights and obligations hereunder have been assigned to it pursuant to such
Assignment and Acceptance, shall have the rights and obligations of a Lender under the Loan
Documents, and (ii) the assignor Lender shall, to the extent that rights and obligations
hereunder and under the other Loan Documents have been assigned by it pursuant to such
Assignment and Acceptance, relinquish its rights (except with respect to Section
11.3 hereof) 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 an assigning
Lender’s rights and obligations under this Agreement and the other Loan Documents, such
Lender shall cease to be a party hereto and thereto), and such assignment shall affect a
novation between Borrower and the Assignee.

     (c) By executing and delivering an Assignment and Acceptance, the assigning Lender
thereunder and the Assignee thereunder confirm to and agree with each other and the other
parties hereto as follows: (1) other than as provided in such Assignment and Acceptance,
such assigning Lender makes no representation or warranty and assumes no responsibility with
respect to any statements, warranties or representations made in or in connection with this
Agreement or the execution, legality, validity, enforceability, genuineness, sufficiency or
value of this Agreement or any other Loan Document furnished pursuant hereto, (2) such
assigning Lender makes no representation or warranty and assumes no responsibility with
respect to the financial condition of Borrower or the performance or observance by Borrower
of any of its obligations under this Agreement or any other Loan Document furnished pursuant
hereto, (3) such Assignee confirms that it has received a copy of this Agreement, together
with such other documents and information as it has deemed appropriate to make its own
credit analysis and decision to enter into such Assignment and Acceptance, (4) such Assignee
will, independently and without reliance upon Agent, such assigning Lender or any other
Lender, and based on such documents and information as it shall deem appropriate at the
time, continue to make its own credit decisions in taking or not taking action under this
Agreement, (5) such Assignee appoints and authorizes Agent to take such actions and to
exercise such powers under this Agreement as are delegated to Agent, by the terms hereof,
together with such powers as are reasonably incidental thereto, and (6) such Assignee agrees
that it will perform all of the obligations which by the terms of this Agreement are
required to be performed by it as a Lender.

     (d) Immediately upon each Assignee’s making its processing fee payment under the
Assignment and Acceptance and receipt and acknowledgment by Agent of such fully executed

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Assignment and Acceptance, this Agreement shall be deemed to be amended to the extent,
but only to the extent, necessary to reflect the addition of the Assignee and the resulting
adjustment of the Commitments arising therefrom. The Commitment allocated to each Assignee
shall reduce such Commitments of the assigning Lender pro tanto.

     (e) Any Lender may at any time, with the written consent of Agent, sell to one or more
commercial banks, financial institutions, or other Persons not Affiliates of such Lender (a
“Participant”) participating interests in its Obligations, the Commitment, and the other
rights and interests of that Lender (the “Originating Lender”) hereunder and under the other
Loan Documents (provided that no written consent of Agent shall be required in connection
with any sale of any such participating interests by a Lender to an Eligible Transferee);
provided, however, that (i) the Originating Lender shall remain a “Lender”
for all purposes of this Agreement and the other Loan Documents and the Participant
receiving the participating interest in the Obligations, the Commitments, and the other
rights and interests of the Originating Lender hereunder shall not constitute a “Lender”
hereunder or under the other Loan Documents and the Originating Lender’s obligations under
this Agreement shall remain unchanged, (ii) the Originating Lender shall remain solely
responsible for the performance of such obligations, (iii) Borrower, Agent, and the Lenders
shall continue to deal solely and directly with the Originating Lender in connection with
the Originating Lender’s rights and obligations under this Agreement and the other Loan
Documents, (iv) no Lender shall transfer or grant any participating interest under which the
Participant has the right to approve any amendment to, or any consent or waiver with respect
to, this Agreement or any other Loan Document, except to the extent such amendment to, or
consent or waiver with respect to this Agreement or of any other Loan Document would (A)
extend the final maturity date of the Obligations hereunder in which such Participant is
participating, (B) reduce the interest rate applicable to the Obligations hereunder in which
such Participant is participating, (C) release all or a material portion of the Collateral
or guaranties (except to the extent expressly provided herein or in any of the Loan
Documents) supporting the Obligations hereunder in which such Participant is participating,
(D) postpone the payment of, or reduce the amount of, the interest or fees payable to such
Participant through such Lender, or (E) change the amount or due dates of scheduled
principal repayments or prepayments or premiums; and (v) all amounts payable by Borrower
hereunder shall be determined as if such Lender had not sold such participation; except
that, if amounts outstanding under this Agreement are due and unpaid, or shall have been
declared or shall have become due and payable upon the occurrence of an Event of Default,
each Participant shall be deemed to have the right of set-off in respect of its
participating interest in amounts owing under this Agreement to the same extent as if the
amount of its participating interest were owing directly to it as a Lender under this
Agreement. The rights of any Participant only shall be derivative through the Originating
Lender with whom such Participant participates and no Participant shall have any rights
under this Agreement or the other Loan Documents or any direct rights as to the other
Lenders, Agent, Borrower, the Collections, the Collateral, or otherwise in respect of the
Obligations. No Participant shall have the right to participate directly in the making of
decisions by the Lenders among themselves.

     (f) In connection with any such assignment or participation or proposed assignment or
participation, a Lender may disclose all documents and information which it now or hereafter
may have relating to Borrower or Borrower’s business.

     (g) Any other provision in this Agreement notwithstanding, any Lender may at any time
create a security interest in, or pledge, all or any portion of its rights under and
interest in this Agreement in favor of any Federal Reserve Bank in accordance with
Regulation A of the Federal Reserve Bank or U.S. Treasury Regulation 31 CFR §203.14, and
such Federal Reserve Bank may enforce such pledge or security interest in any manner
permitted under applicable law.

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     14.2. Successors. This Agreement shall bind and inure to the benefit of the
respective successors and assigns of each of the parties; provided, however, that
Borrower may not assign this Agreement or any rights or duties hereunder without the Lenders’ prior
written consent and any prohibited assignment shall be absolutely void ab initio. No consent to
assignment by the Lenders shall release Borrower from its Obligations. A Lender may assign this
Agreement and the other Loan Documents and its rights and duties hereunder and thereunder pursuant
to Section 14.1 hereof and, except as expressly required pursuant to Section 14.1
hereof, no consent or approval by Borrower is required in connection with any such assignment.

15. AMENDMENTS; WAIVERS.

     15.1. Amendments and Waivers. No amendment or waiver of any provision of this
Agreement or any other Loan Document, and no consent with respect to any departure by Borrower
therefrom, shall be effective unless the same shall be in writing and signed by the Required
Lenders (or by Agent at the written request of the Required Lenders) and Borrower and then any such
waiver or consent shall be effective only in the specific instance and for the specific purpose for
which given; provided, however, that no such waiver, amendment, or consent shall,
unless in writing and signed by all of the Lenders affected thereby and Borrower and acknowledged
by Agent, do any of the following:

     (a) increase or extend any Commitment of any Lender,

     (b) postpone or delay any date fixed by this Agreement or any other Loan Document for
any payment of principal, interest, fees, or other amounts due hereunder or under any other
Loan Document,

     (c) reduce the principal of, or the rate of interest on, any loan or other extension of
credit hereunder, or reduce any fees or other amounts payable hereunder or under any other
Loan Document,

     (d) change the percentage of the Commitments that is required to take any action
hereunder,

     (e) amend this Section or any provision of the Agreement providing for consent or other
action by all Lenders,

     (f) release Collateral other than as permitted by Section 16.12,

     (g) change the definition of “Required Lenders”,

     (h) contractually subordinate any of the Agent’s Liens,

     (i) release Borrower from any obligation for the payment of money,

     (j) change the definition of Borrowing Base or change Section 2.1(b), or

     (k) amend any of the provisions of Section 16.

and, provided further, however, that no amendment, waiver or consent shall, unless
in writing and signed by Agent, Issuing Lender, or Swing Lender, affect the rights or duties of
Agent, Issuing Lender, or Swing Lender, as applicable, under this Agreement or any other Loan
Document. The foregoing notwithstanding, any amendment, modification, waiver, consent,
termination, or release of, or with

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respect to, any provision of this Agreement or any other Loan Document that relates only to the
relationship of the Lender Group among themselves, and that does not affect the rights or
obligations of Borrower, shall not require consent by or the agreement of Borrower.

     15.2. Replacement of Holdout Lender. If any action to be taken by the Lender Group or
Agent hereunder requires the unanimous consent, authorization, or agreement of all Lenders, and a
Lender (“Holdout Lender”) fails to give its consent, authorization, or agreement, then Agent, upon
at least 5 Business Days prior irrevocable notice to the Holdout Lender, may permanently replace
the Holdout Lender with one or more substitute Lenders (each, a “Replacement Lender”), and the
Holdout Lender shall not have the right to refuse to be replaced hereunder. Such notice to replace
the Holdout Lender shall specify an effective date for such replacement, which date shall not be
later than 15 Business Days after the date such notice is given.

     Prior to the effective date of such replacement, the Holdout Lender and each Replacement
Lender shall execute and deliver an Assignment and Acceptance Agreement, subject only to the
Holdout Lender being repaid its share of the outstanding Obligations (including an assumption of
its Pro Rata Share of the Risk Participation Liability) without any premium or penalty of any kind
whatsoever. If the Holdout Lender shall refuse or fail to execute and deliver any such Assignment
and Acceptance Agreement prior to the effective date of such replacement, the Holdout Lender shall
be deemed to have executed and delivered such Assignment and Acceptance Agreement. The replacement
of any Holdout Lender shall be made in accordance with the terms of Section 14.1. Until
such time as the Replacement Lenders shall have acquired all of the Obligations, the Commitments,
and the other rights and obligations of the Holdout Lender hereunder and under the other Loan
Documents, the Holdout Lender shall remain obligated to make the Holdout Lender’s Pro Rata Share of
Advances and to purchase a participation in each Letter of Credit, in an amount equal to its Pro
Rata Share of the Risk Participation Liability of such Letter of Credit.

     15.3. No Waivers; Cumulative Remedies. No failure by Agent or any Lender to exercise
any right, remedy, or option under this Agreement or, any other Loan Document, or delay by Agent or
any Lender in exercising the same, will operate as a waiver thereof. No waiver by Agent or any
Lender will be effective unless it is in writing, and then only to the extent specifically stated.
No waiver by Agent or any Lender on any occasion shall affect or diminish Agent’s and each Lender’s
rights thereafter to require strict performance by Borrower of any provision of this Agreement.
Agent’s and each Lender’s rights under this Agreement and the other Loan Documents will be
cumulative and not exclusive of any other right or remedy that Agent or any Lender may have.

16. AGENT; THE LENDER GROUP.

     16.1. Appointment and Authorization of Agent. Each Lender hereby designates and
appoints Foothill as its representative under this Agreement and the other Loan Documents and each
Lender hereby irrevocably authorizes Agent to take such action on its behalf under the provisions
of this Agreement and each other Loan Document and to exercise such powers and perform such duties
as are expressly delegated to Agent by the terms of this Agreement or any other Loan Document,
together with such powers as are reasonably incidental thereto. Agent agrees to act as such on the
express conditions contained in this Section 16. The provisions of this Section 16
are solely for the benefit of Agent, and the Lenders, and Borrower shall have no rights as a third
party beneficiary of any of the provisions contained herein. Any provision to the contrary
contained elsewhere in this Agreement or in any other Loan Document notwithstanding, Agent shall
not have any duties or responsibilities, except those expressly set forth herein, nor shall Agent
have or be deemed to have any fiduciary relationship with any Lender, and no implied covenants,
functions, responsibilities, duties, obligations or liabilities shall be read into this Agreement
or any other Loan Document or otherwise exist against Agent; it being expressly

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understood and agreed that the use of the word “Agent” is for convenience only, that Foothill
is merely the representative of the Lenders, and only has the contractual duties set forth herein.
Except as expressly otherwise provided in this Agreement, Agent shall have and may use its sole
discretion with respect to exercising or refraining from exercising any discretionary rights or
taking or refraining from taking any actions that Agent expressly is entitled to take or assert
under or pursuant to this Agreement and the other Loan Documents. Without limiting the generality
of the foregoing, or of any other provision of the Loan Documents that provides rights or powers to
Agent, Lenders agree that Agent shall have the right to exercise the following powers as long as
this Agreement remains in effect: (a) maintain, in accordance with its customary business
practices, ledgers and records reflecting the status of the Obligations, the Collateral, the
Collections, and related matters, (b) execute or file any and all financing or similar statements
or notices, amendments, renewals, supplements, documents, instruments, proofs of claim, notices and
other written agreements with respect to the Loan Documents, (c) make Advances, for itself or on
behalf of Lenders as provided in the Loan Documents, (d) exclusively receive, apply, and distribute
the Collections as provided in the Loan Documents, (e) open and maintain such bank accounts and
cash management accounts as Agent deems necessary and appropriate in accordance with the Loan
Documents for the foregoing purposes with respect to the Collateral and the Collections, (f)
perform, exercise, and enforce any and all other rights and remedies of the Lender Group with
respect to Borrower, the Obligations, the Collateral, the Collections, or otherwise related to any
of same as provided in the Loan Documents, and (g) incur and pay such Lender Group Expenses as
Agent may deem necessary or appropriate for the performance and fulfillment of its functions and
powers pursuant to the Loan Documents.

     16.2. Delegation of Duties. Agent may execute any of its duties under this Agreement
or any other Loan Document by or through agents, employees or attorneys-in-fact and shall be
entitled to advice of counsel concerning all matters pertaining to such duties. Agent shall not be
responsible for the negligence or misconduct of any agent or attorney-in-fact that it selects as
long as such selection was made without gross negligence or willful misconduct.

     16.3. Liability of Agent. None of the Agent-Related Persons shall (i) be liable for
any action taken or omitted to be taken by any of them under or in connection with this Agreement
or any other Loan Document or the transactions contemplated hereby (except for its own gross
negligence or willful misconduct), or (ii) be responsible in any manner to any of the Lenders for
any recital, statement, representation or warranty made by Borrower or any Subsidiary or Affiliate
of Borrower, or any officer or director thereof, contained in this Agreement or in any other Loan
Document, or in any certificate, report, statement or other document referred to or provided for
in, or received by Agent under or in connection with, this Agreement or any other Loan Document, or
the validity, effectiveness, genuineness, enforceability or sufficiency of this Agreement or any
other Loan Document, or for any failure of Borrower or any other party to any Loan Document to
perform its obligations hereunder or thereunder. No Agent-Related Person shall be under any
obligation to any Lender to ascertain or to inquire as to the observance or performance of any of
the agreements contained in, or conditions of, this Agreement or any other Loan Document, or to
inspect the Books or properties of Borrower or the books or records or properties of Borrower’s
Subsidiaries or Affiliates.

     16.4. Reliance by Agent. Agent shall be entitled to rely, and shall be fully
protected in relying, upon any writing, resolution, notice, consent, certificate, affidavit,
letter, telegram, facsimile, telex or telephone message, statement or other document or
conversation believed by it to be genuine and correct and to have been signed, sent, or made by the
proper Person or Persons, and upon advice and statements of legal counsel (including counsel to
Borrower or counsel to any Lender), independent accountants and other experts selected by Agent.
Agent shall be fully justified in failing or refusing to take any action under this Agreement or
any other Loan Document unless Agent shall first receive such advice or concurrence of the Lenders
as it deems appropriate and until such instructions are received,

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Agent shall act, or refrain from acting, as it deems advisable. If Agent so requests, it
shall first be indemnified to its reasonable satisfaction by Lenders against any and all liability
and expense that may be incurred by it by reason of taking or continuing to take any such action.
Agent shall in all cases be fully protected in acting, or in refraining from acting, under this
Agreement or any other Loan Document in accordance with a request or consent of the Lenders and
such request and any action taken or failure to act pursuant thereto shall be binding upon all of
the Lenders.

     16.5. Notice of Default or Event of Default. Agent shall not be deemed to have
knowledge or notice of the occurrence of any Default or Event of Default, except with respect to
defaults in the payment of principal, interest, fees, and expenses required to be paid to Agent for
the account of the Lenders, except with respect to Events of Default of which Agent has actual
knowledge, unless Agent shall have received written notice from a Lender or Borrower referring to
this Agreement, describing such Default or Event of Default, and stating that such notice is a
“notice of default.” Agent promptly will notify the Lenders of its receipt of any such notice or
of any Event of Default of which Agent has actual knowledge. If any Lender obtains actual
knowledge of any Event of Default, such Lender promptly shall notify the other Lenders and Agent of
such Event of Default. Each Lender shall be solely responsible for giving any notices to its
Participants, if any. Subject to Section 16.4, Agent shall take such action with respect
to such Default or Event of Default as may be requested by the Required Lenders in accordance with
Section 9; provided, however, that unless and until Agent has received any
such request, Agent may (but shall not be obligated to) take such action, or refrain from taking
such action, with respect to such Default or Event of Default as it shall deem advisable.

     16.6. Credit Decision. Each Lender acknowledges that none of the Agent-Related
Persons has made any representation or warranty to it, and that no act by Agent hereinafter taken,
including any review of the affairs of Borrower and its Subsidiaries or Affiliates, shall be deemed
to constitute any representation or warranty by any Agent-Related Person to any Lender. Each
Lender represents to Agent that it has, independently and without reliance upon any Agent-Related
Person and based on such documents and information as it has deemed appropriate, made its own
appraisal of and investigation into the business, prospects, operations, property, financial and
other condition and creditworthiness of Borrower and any other Person (other than the Lender Group)
party to a Loan Document, and all applicable bank regulatory laws relating to the transactions
contemplated hereby, and made its own decision to enter into this Agreement and to extend credit to
Borrower. Each Lender also represents that it will, independently and without reliance upon any
Agent-Related Person and based on such documents and information as it shall deem appropriate at
the time, continue to make its own credit analysis, appraisals and decisions in taking or not
taking action under this Agreement and the other Loan Documents, and to make such investigations as
it deems necessary to inform itself as to the business, prospects, operations, property, financial
and other condition and creditworthiness of Borrower and any other Person (other than the Lender
Group) party to a Loan Document. Except for notices, reports, and other documents expressly herein
required to be furnished to the Lenders by Agent, Agent shall not have any duty or responsibility
to provide any Lender with any credit or other information concerning the business, prospects,
operations, property, financial and other condition or creditworthiness of Borrower and any other
Person party to a Loan Document that may come into the possession of any of the Agent-Related
Persons.

     16.7. Costs and Expenses; Indemnification. Agent may incur and pay Lender Group
Expenses to the extent Agent reasonably deems necessary or appropriate for the performance and
fulfillment of its functions, powers, and obligations pursuant to the Loan Documents, including
court costs, reasonable attorneys fees and expenses, fees and expenses of financial accountants,
advisors, consultants, and appraisers, costs of collection by outside collection agencies and
auctioneer fees and costs of security guards or insurance premiums paid to maintain the Collateral,
whether or not Borrower is obligated to reimburse Agent or Lenders for such expenses pursuant to
the Credit Agreement or

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otherwise. Agent is authorized and directed to deduct and retain sufficient amounts from
Collections received by Agent to reimburse Agent for such out-of-pocket costs and expenses prior to
the distribution of any amounts to Lenders. In the event Agent is not reimbursed for such costs
and expenses from Collections received by Agent, each Lender hereby agrees that it is and shall be
obligated to pay to or reimburse Agent for the amount of such Lender’s Pro Rata Share thereof.
Whether or not the transactions contemplated hereby are consummated, the Lenders shall indemnify
upon demand the Agent-Related Persons (to the extent not reimbursed by or on behalf of Borrower and
without limiting the obligation of Borrower to do so), according to their Pro Rata Shares, from and
against any and all Indemnified Liabilities; provided, however, that no Lender
shall be liable for the payment to any Agent-Related Person of any portion of such Indemnified
Liabilities resulting solely from such Person’s gross negligence or willful misconduct nor shall
any Lender be liable for the obligations of any Defaulting Lender in failing to make an Advance or
other extension of credit hereunder. Without limitation of the foregoing, each Lender shall
reimburse Agent upon demand for such Lender’s ratable share of any costs or out-of-pocket expenses
(including attorneys, accountants, advisors, and consultants fees and expenses) incurred by Agent
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, any other Loan Document, or any
document contemplated by or referred to herein, to the extent that Agent is not reimbursed for such
expenses by or on behalf of Borrower. The undertaking in this Section shall survive the payment of
all Obligations hereunder and the resignation or replacement of Agent.

     16.8. Agent in Individual Capacity. Foothill and its Affiliates may make loans to,
issue letters of credit for the account of, accept deposits from, acquire equity interests in, and
generally engage in any kind of banking, trust, financial advisory, underwriting, or other business
with Borrower and its Subsidiaries and Affiliates and any other Person (other than the Lender
Group) party to any Loan Documents as though Foothill were not Agent hereunder, and, in each case,
without notice to or consent of the other members of the Lender Group. The other members of the
Lender Group acknowledge that, pursuant to such activities, Foothill or its Affiliates may receive
information regarding Borrower or its Affiliates and any other Person (other than the Lender Group)
party to any Loan Documents that is subject to confidentiality obligations in favor of Borrower or
such other Person and that prohibit the disclosure of such information to the Lenders, and the
Lenders acknowledge that, in such circumstances (and in the absence of a waiver of such
confidentiality obligations, which waiver Agent will use its reasonable best efforts to obtain),
Agent shall not be under any obligation to provide such information to them. The terms “Lender”
and “Lenders” include Foothill in its individual capacity.

     16.9. Successor Agent. Agent may resign as Agent upon 45 days notice to the Lenders.
If Agent resigns under this Agreement, the Required Lenders shall appoint a successor Agent for the
Lenders. If no successor Agent is appointed prior to the effective date of the resignation of
Agent, Agent may appoint, after consulting with the Lenders, a successor Agent. If Agent has
materially breached or failed to perform any material provision of this Agreement or of applicable
law, the Required Lenders may agree in writing to remove and replace Agent with a successor Agent
from among the Lenders. In any such event, upon the acceptance of its appointment as successor
Agent hereunder, such successor Agent shall succeed to all the rights, powers, and duties of the
retiring Agent and the term “Agent” shall mean such successor Agent and the retiring Agent’s
appointment, powers, and duties as Agent shall be terminated. After any retiring Agent’s
resignation hereunder as Agent, the provisions of this Section 16 shall inure to its
benefit as to any actions taken or omitted to be taken by it while it was Agent under this
Agreement. If no successor Agent has accepted appointment as Agent by the date which is 45 days
following a retiring Agent’s notice of resignation, the retiring Agent’s resignation shall
nevertheless thereupon become effective and the Lenders shall perform all of the duties of Agent
hereunder until such time, if any, as the Lenders appoint a successor Agent as provided for above.

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     16.10. Lender in Individual Capacity. Any Lender and its respective Affiliates may
make loans to, issue letters of credit for the account of, accept deposits from, acquire equity
interests in and generally engage in any kind of banking, trust, financial advisory, underwriting
or other business with Borrower and its Subsidiaries and Affiliates and any other Person (other
than the Lender Group) party to any Loan Documents as though such Lender were not a Lender
hereunder without notice to or consent of the other members of the Lender Group. The other members
of the Lender Group acknowledge that, pursuant to such activities, such Lender and its respective
Affiliates may receive information regarding Borrower or its Affiliates and any other Person (other
than the Lender Group) party to any Loan Documents that is subject to confidentiality obligations
in favor of Borrower or such other Person and that prohibit the disclosure of such information to
the Lenders, and the Lenders acknowledge that, in such circumstances (and in the absence of a
waiver of such confidentiality obligations, which waiver such Lender will use its reasonable best
efforts to obtain), such Lender shall not be under any obligation to provide such information to
them. With respect to the Swing Loans and Agent Advances, Swing Lender shall have the same rights
and powers under this Agreement as any other Lender and may exercise the same as though it were not
the sub-agent of the Agent.

     16.11. Withholding Taxes.

     (a) If any Lender is a “foreign corporation, partnership or trust” within the meaning
of the IRC and such Lender claims exemption from, or a reduction of, U.S. withholding tax
under Sections 1441 or 1442 of the IRC, such Lender agrees with and in favor of Agent and
Borrower, to deliver to Agent and Borrower:

     (i) if such Lender claims an exemption from withholding tax pursuant to its
portfolio interest exception, (a) a statement of the Lender, signed under penalty of
perjury, that it is not a (I) “bank” as described in Section 881(c)(3)(A) of the
IRC, (II) 10% shareholder (within the meaning of Section 881(c)(3)(B) of the IRC),
or (III) controlled foreign corporation described in Section 881(c)(3)(C) of the
IRC, and (B) a properly completed IRS Form W-8BEN, before the first payment of any
interest under this Agreement and at any other time reasonably requested by Agent or
Borrower;

     (ii) if such Lender claims an exemption from, or a reduction of, withholding
tax under a United States tax treaty, properly completed IRS Form W-8BEN before the
first payment of any interest under this Agreement and at any other time reasonably
requested by Agent or Borrower;

     (iii) if such Lender claims that interest paid under this Agreement is exempt
from United States withholding tax because it is effectively connected with a United
States trade or business of such Lender, two properly completed and executed copies
of IRS Form W-8ECI before the first payment of any interest is due under this
Agreement and at any other time reasonably requested by Agent or Borrower;

     (iv) such other form or forms as may be required under the IRC or other laws of
the United States as a condition to exemption from, or reduction of, United States
withholding tax.

Such Lender agrees promptly to notify Agent and Borrower of any change in circumstances which would
modify or render invalid any claimed exemption or reduction.

     (b) If any Lender claims exemption from, or reduction of, withholding tax under a
United States tax treaty by providing IRS Form W-8BEN and such Lender sells, assigns, grants
a

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participation in, or otherwise transfers all or part of the Obligations of Borrower to
such Lender, such Lender agrees to notify Agent of the percentage amount in which it is no
longer the beneficial owner of Obligations of Borrower to such Lender. To the extent of
such percentage amount, Agent will treat such Lender’s IRS Form W-8BEN as no longer valid.

     (c) If any Lender is entitled to a reduction in the applicable withholding tax, Agent
may withhold from any interest payment to such Lender an amount equivalent to the applicable
withholding tax after taking into account such reduction. If the forms or other
documentation required by subsection (a) of this Section are not delivered to Agent, then
Agent may withhold from any interest payment to such Lender not providing such forms or
other documentation an amount equivalent to the applicable withholding tax.

     (d) If the IRS or any other Governmental Authority of the United States or other
jurisdiction asserts a claim that Agent did not properly withhold tax from amounts paid to
or for the account of any Lender (because the appropriate form was not delivered, was not
properly executed, or because such Lender failed to notify Agent of a change in
circumstances which rendered the exemption from, or reduction of, withholding tax
ineffective, or for any other reason) such Lender shall indemnify and hold Agent harmless
for all amounts paid, directly or indirectly, by Agent as tax or otherwise, including
penalties and interest, and including any taxes imposed by any jurisdiction on the amounts
payable to Agent under this Section, together with all costs and expenses (including
attorneys fees and expenses). The obligation of the Lenders under this subsection shall
survive the payment of all Obligations and the resignation or replacement of Agent.

     (e) All payments made by Borrower hereunder or under any note or other Loan Document
will be made without setoff, counterclaim, or other defense, except as required by
applicable law other than for Taxes (as defined below). All such payments will be made free
and clear of, and without deduction or withholding for, any present or future taxes, levies,
imposts, duties, fees, assessments or other charges of whatever nature now or hereafter
imposed by any jurisdiction (other than the United States) or by any political subdivision
or taxing authority thereof or therein (other than of the United States) with respect to
such payments (but excluding, any tax imposed by any jurisdiction or by any political
subdivision or taxing authority thereof or therein (i) measured by or based on the net
income or net profits of a Lender, or (ii) to the extent that such tax results from a change
in the circumstances of the Lender, including a change in the residence, place of
organization, or principal place of business of the Lender, or a change in the branch or
lending office of the Lender participating in the transactions set forth herein) and all
interest, penalties or similar liabilities with respect thereto (all such non-excluded
taxes, levies, imposts, duties, fees, assessments or other charges being referred to
collectively as “Taxes”). If any Taxes are so levied or imposed, Borrower agrees to pay the
full amount of such Taxes, and such additional amounts as may be necessary so that every
payment of all amounts due under this Agreement or under any note, including any amount paid
pursuant to this Section 16.11(e) after withholding or deduction for or on account
of any Taxes, will not be less than the amount provided for herein; provided,
however, that Borrower shall not be required to increase any such amounts payable to
Agent or any Lender (i) that is not organized under the laws of the United States, if such
Person fails to comply with the other requirements of this Section 16.11, or (ii) if
the increase in such amount payable results from Agent’s or such Lender’s own willful
misconduct or gross negligence. Borrower will furnish to Agent as promptly as possible
after the date the payment of any Taxes is due pursuant to applicable law certified copies
of tax receipts evidencing such payment by Borrower.

     16.12. Collateral Matters.

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     (a) The Lenders hereby irrevocably authorize Agent, at its option and in its sole
discretion, to release any Lien on any Collateral (i) upon the termination of the
Commitments and payment and satisfaction in full by Borrower of all Obligations, (ii)
constituting property being sold or disposed of if a release is required or desirable in
connection therewith and if Borrower certifies to Agent that the sale or disposition is
permitted under Section 7.4 of this Agreement or the other Loan Documents (and Agent
may rely conclusively on any such certificate, without further inquiry), (iii) constituting
property in which Borrower does not own any interest at the time the security interest was
granted or at any time thereafter, or (iv) constituting property leased to Borrower under a
lease that has expired or is terminated in a transaction permitted under this Agreement.
Except as provided above, Agent will not execute and deliver a release of any Lien on any
Collateral without the prior written authorization of (y) if the release is of all or
substantially all of the Collateral, all of the Lenders, or (z) otherwise, the Required
Lenders. Upon request by Agent or Borrower at any time, the Lenders will confirm in writing
Agent’s authority to release any such Liens on particular types or items of Collateral
pursuant to this Section 16.12; provided, however, that (1) Agent
shall not be required to execute any document necessary to evidence such release on terms
that, in Agent’s opinion, would expose Agent to liability or create any obligation or entail
any consequence other than the release of such Lien without recourse, representation, or
warranty, and (2) such release shall not in any manner discharge, affect, or impair the
Obligations or any Liens (other than those expressly being released) upon (or obligations of
Borrower in respect of) all interests retained by Borrower, including, the proceeds of any
sale, all of which shall continue to constitute part of the Collateral.

     (b) Agent shall have no obligation whatsoever to any of the Lenders to assure that the
Collateral exists or is owned by Borrower or any of its Subsidiaries or is cared for,
protected, or insured or has been encumbered, or that the Agent’s Liens have been properly
or sufficiently or lawfully created, perfected, protected, or enforced or are entitled to
any particular priority, or to exercise at all or in any particular manner or under any duty
of care, disclosure or fidelity, or to continue exercising, any of the rights, authorities
and powers granted or available to Agent pursuant to any of the Loan Documents, it being
understood and agreed that in respect of the Collateral, or any act, omission, or event
related thereto, subject to the terms and conditions contained herein, Agent may act in any
manner it may deem appropriate, in its sole discretion given Agent’s own interest in the
Collateral in its capacity as one of the Lenders and that Agent shall have no other duty or
liability whatsoever to any Lender as to any of the foregoing, except as otherwise provided
herein.

16.13. Restrictions on Actions by Lenders; Sharing of Payments.

     (a) Each of the Lenders agrees that it shall not, without the express consent of Agent,
and that it shall, to the extent it is lawfully entitled to do so, upon the request of
Agent, set off against the Obligations, any amounts owing by such Lender to any Borrower or
any deposit accounts of Borrower now or hereafter maintained with such Lender. Each of the
Lenders further agrees that it shall not, unless specifically requested to do so by Agent,
take or cause to be taken any action, including, the commencement of any legal or equitable
proceedings, to foreclose any Lien on, or otherwise enforce any security interest in, any of
the Collateral the purpose of which is, or could be, to give such Lender any preference or
priority against the other Lenders with respect to the Collateral.

     (b) If, at any time or times any Lender shall receive (i) by payment, foreclosure,
setoff, or otherwise, any proceeds of Collateral or any payments with respect to the
Obligations arising under, or relating to, this Agreement or the other Loan Documents,
except for any such proceeds or payments received by such Lender from Agent pursuant to the
terms of this

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Agreement, or (ii) payments from Agent in excess of such Lender’s ratable portion of
all such distributions by Agent, such Lender promptly shall (1) turn the same over to Agent,
in kind, and with such endorsements as may be required to negotiate the same to Agent, or in
immediately available funds, as applicable, for the account of all of the Lenders and for
application to the Obligations in accordance with the applicable provisions of this
Agreement, or (2) purchase, without recourse or warranty, an undivided interest and
participation in the Obligations owed to the other Lenders so that such excess payment
received shall be applied ratably as among the Lenders in accordance with their Pro Rata
Shares; provided, however, that if all or part of such excess payment
received by the purchasing party is thereafter recovered from it, those purchases of
participations shall be rescinded in whole or in part, as applicable, and the applicable
portion of the purchase price paid therefor shall be returned to such purchasing party, but
without interest except to the extent that such purchasing party is required to pay interest
in connection with the recovery of the excess payment.

     16.14. Agency for Perfection. Agent hereby appoints each other Lender as its agent
(and each Lender hereby accepts such appointment) for the purpose of perfecting the Agent’s Liens
in assets which, in accordance with Article 9 of the Code can be perfected only by possession.
Should any Lender obtain possession of any such Collateral, such Lender shall notify Agent thereof,
and, promptly upon Agent’s request therefor shall deliver such Collateral to Agent or in accordance
with Agent’s instructions.

     16.15. Payments by Agent to the Lenders. All payments to be made by Agent to the
Lenders shall be made by bank wire transfer or internal transfer of immediately available funds
pursuant to such wire transfer instructions as each party may designate for itself by written
notice to Agent. Concurrently with each such payment, Agent shall identify whether such payment
(or any portion thereof) represents principal, premium, or interest of the Obligations.

     16.16. Concerning the Collateral and Related Loan Documents. Each member of the
Lender Group authorizes and directs Agent to enter into this Agreement and the other Loan Documents
relating to the Collateral, for the benefit of the Lender Group. Each member of the Lender Group
agrees that any action taken by Agent in accordance with the terms of this Agreement or the other
Loan Documents relating to the Collateral and the exercise by Agent of its powers set forth therein
or herein, together with such other powers that are reasonably incidental thereto, shall be binding
upon all of the Lenders.

     16.17. Field Audits and Examination Reports; Confidentiality; Disclaimers by Lenders;
Other Reports and Information. By becoming a party to this Agreement, each Lender:

     (a) is deemed to have requested that Agent furnish such Lender, promptly after it
becomes available, a copy of each field audit or examination report (each a “Report” and
collectively, “Reports”) prepared by Agent, and Agent shall so furnish each Lender with such
Reports,

     (b) expressly agrees and acknowledges that Agent does not (i) make any representation
or warranty as to the accuracy of any Report, and (ii) shall not be liable for any
information contained in any Report,

     (c) expressly agrees and acknowledges that the Reports are not comprehensive audits or
examinations, that Agent or other party performing any audit or examination will inspect
only specific information regarding Borrower and will rely significantly upon the Books, as
well as on representations of Borrower’s personnel,

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     (d) agrees to keep all Reports and other material, non-public information regarding
Borrower and its Subsidiaries and their operations, assets, and existing and contemplated
business plans in a confidential manner; it being understood and agreed by Borrower that in
any event such Lender may make disclosures (i) to counsel for and other advisors,
accountants, and auditors to such Lender, (ii) reasonably required by any bona fide
potential or actual Assignee or Participant in connection with any contemplated or actual
assignment or transfer by such Lender of an interest herein or any participation interest in
such Lender’s rights hereunder, (iii) of information that has become public by disclosures
made by Persons other than such Lender, its Affiliates, assignees, transferees, or
Participants, or (iv) as required or requested by any court, governmental or administrative
agency, pursuant to any subpoena or other legal process, or by any law, statute, regulation,
or court order; provided, however, that, unless prohibited by applicable
law, statute, regulation, or court order, such Lender shall notify Borrower of any request
by any court, governmental or administrative agency, or pursuant to any subpoena or other
legal process for disclosure of any such non-public material information concurrent with, or
where practicable, prior to the disclosure thereof, and

     (e) without limiting the generality of any other indemnification provision contained in
this Agreement, agrees: (i) to hold Agent and any such other Lender preparing a Report
harmless from any action the indemnifying Lender may take or conclusion the indemnifying
Lender may reach or draw from any Report in connection with any loans or other credit
accommodations that the indemnifying Lender has made or may make to Borrower, or the
indemnifying Lender’s participation in, or the indemnifying Lender’s purchase of, a loan or
loans of Borrower; and (ii) to pay and protect, and indemnify, defend and hold Agent, and
any such other Lender preparing a Report harmless from and against, the claims, actions,
proceedings, damages, costs, expenses, and other amounts (including, attorneys fees and
costs) incurred by Agent and any such other Lender preparing a Report as the direct or
indirect result of any third parties who might obtain all or part of any Report through the
indemnifying Lender.

In addition to the foregoing: (x) any Lender may from time to time request of Agent in writing
that Agent provide to such Lender a copy of any report or document provided by Borrower to Agent
that has not been contemporaneously provided by Borrower to such Lender, and, upon receipt of such
request, Agent shall provide a copy of same to such Lender, (y) to the extent that Agent is
entitled, under any provision of the Loan Documents, to request additional reports or information
from Borrower, any Lender may, from time to time, reasonably request Agent to exercise such right
as specified in such Lender’s notice to Agent, whereupon Agent promptly shall request of Borrower
the additional reports or information reasonably specified by such Lender, and, upon receipt
thereof from Borrower, Agent promptly shall provide a copy of same to such Lender, and (z) any time
that Agent renders to Borrower a statement regarding the Loan Account, Agent shall send a copy of
such statement to each Lender.

     16.18. Several Obligations; No Liability. Notwithstanding that certain of the Loan
Documents now or hereafter may have been or will be executed only by or in favor of Agent in its
capacity as such, and not by or in favor of the Lenders, any and all obligations on the part of
Agent (if any) to make any credit available hereunder shall constitute the several (and not joint)
obligations of the respective Lenders on a ratable basis, according to their respective
Commitments, to make an amount of such credit not to exceed, in principal amount, at any one time
outstanding, the amount of their respective Commitments. Nothing contained herein shall confer
upon any Lender any interest in, or subject any Lender to any liability for, or in respect of, the
business, assets, profits, losses, or liabilities of any other Lender. Each Lender shall be solely
responsible for notifying its Participants of any matters relating to the Loan Documents to the
extent any such notice may be required, and no Lender shall have any obligation, duty, or liability
to any Participant of any other Lender. Except as provided in Section 16.7, no member of
the Lender Group shall have any liability for the acts of any other member of the Lender Group. No
Lender

-93-

 

shall be responsible to Borrower or any other Person for any failure by any other Lender to
fulfill its obligations to make credit available hereunder, nor to advance for it or on its behalf
in connection with its Commitment, nor to take any other action on its behalf hereunder or in
connection with the financing contemplated herein.

     16.19. Bank Product Providers. Each Bank Product Provider shall be deemed a party
hereto for purposes of any reference in a Loan Document to the parties for whom Agent is acting; it
being understood and agreed that the rights and benefits of such Bank Product Provider under the
Loan Documents consist exclusively of such Bank Product Provider’s right to share in payments and
collections out of the Collateral as more fully set forth herein. In connection with any such
distribution of payments and collections, Agent shall be entitled to assume no amounts are due to
any Bank Product Provider unless such Bank Product Provider has notified Agent in writing of the
amount of any such liability owed to it prior to such distribution.

     16.20. Legal Representation of Agent. In connection with the negotiation, drafting,
and execution of this Agreement and the other Loan Documents, or in connection with future legal
representation relating to loan administration, amendments, modifications, waivers, or enforcement
of remedies, Munsch Hardt Kopf & Harr, P.C. (“Munsch Hardt”) only has represented and only shall
represent Foothill in its capacity as Agent and as a Lender. Each other Lender hereby acknowledges
that Munsch Hardt does not represent it in connection with any such matters.

17. GENERAL PROVISIONS.

     17.1. Effectiveness. This Agreement shall be binding and deemed effective when
executed by Borrower, the Pledging Subsidiaries, Agent, and each Lender whose signature is provided
for on the signature pages hereof.

     17.2. Section Headings. Headings and numbers have been set forth herein for
convenience only. Unless the contrary is compelled by the context, everything contained in each
Section applies equally to this entire Agreement.

     17.3. Interpretation. Neither this Agreement nor any uncertainty or ambiguity herein
shall be construed or resolved against the Lender Group or Borrower, whether under any rule of
construction or otherwise. On the contrary, this Agreement has been reviewed by all parties and
shall be construed and interpreted according to the ordinary meaning of the words used so as to
accomplish fairly the purposes and intentions of all parties hereto.

     17.4. Severability of Provisions. Each provision of this Agreement shall be severable
from every other provision of this Agreement for the purpose of determining the legal
enforceability of any specific provision.

     17.5. Amendments in Writing. This Agreement only can be amended by a writing in
accordance with Section 15.1.

     17.6. Counterparts; Telefacsimile Execution. This Agreement may be executed in any
number of counterparts and by different parties on separate counterparts, each of which, when
executed and delivered, shall be deemed to be an original, and all of which, when taken together,
shall constitute but one and the same Agreement. Delivery of an executed counterpart of this
Agreement by telefacsimile shall be equally as effective as delivery of an original executed
counterpart of this Agreement. Any party delivering an executed counterpart of this Agreement by
telefacsimile also shall deliver an original executed counterpart of this Agreement but the failure
to deliver an original executed counterpart shall

-94-

 

not affect the validity, enforceability, and binding effect of this Agreement. The foregoing
shall apply to each other Loan Document mutatis mutandis.

     17.7. Revival and Reinstatement of Obligations. If the incurrence or payment of the
Obligations by Borrower or the transfer to the Lender Group of any property should for any reason
subsequently be declared to be void or voidable under any state or federal law relating to
creditors’ rights, including provisions of the Bankruptcy Code relating to fraudulent conveyances,
preferences, or other voidable or recoverable payments of money or transfers of property
(collectively, a “Voidable Transfer”), and if the Lender Group is required to repay or restore, in
whole or in part, any such Voidable Transfer, or elects to do so upon the reasonable advice of its
counsel, then, as to any such Voidable Transfer, or the amount thereof that the Lender Group is
required or elects to repay or restore, and as to all reasonable costs, expenses, and attorneys
fees of the Lender Group related thereto, the liability of Borrower automatically shall be revived,
reinstated, and restored and shall exist as though such Voidable Transfer had never been made.

     17.8. Confidentiality. Agent and Lenders each individually (and not jointly or
jointly and severally) agree that material, non-public information regarding Borrower and its
Subsidiaries, their operations, assets, and existing and contemplated business plans shall be
treated by Agent and the Lenders in a confidential manner, and shall not be disclosed by Agent and
the Lenders to Persons who are not parties to this Agreement, except: (a) to attorneys for and
other advisors, accountants, auditors, and consultants to any member of the Lender Group, (b) to
Subsidiaries and Affiliates of any member of the Lender Group (including the Bank Product
Providers), provided that any such Subsidiary or Affiliate shall have agreed to receive such
information hereunder subject to the terms of this Section 17.8, (c) as may be required by
statute, decision, or judicial or administrative order, rule, or regulation, (d) as may be agreed
to in advance by Borrower or its Subsidiaries or as requested or required by any Governmental
Authority pursuant to any subpoena or other legal process, (e) as to any such information that is
or becomes generally available to the public (other than as a result of prohibited disclosure by
Agent or the Lenders), (f) in connection with any assignment, prospective assignment, sale,
prospective sale, participation or prospective participations, or pledge or prospective pledge of
any Lender’s interest under this Agreement, provided that any such assignee, prospective assignee,
purchaser, prospective purchaser, participant, prospective participant, pledgee, or prospective
pledgee shall have agreed in writing to receive such information hereunder subject to the terms of
this Section, and (g) in connection with any litigation or other adversary proceeding involving
parties hereto which such litigation or adversary proceeding involves claims related to the rights
or duties of such parties under this Agreement or the other Loan Documents. The provisions of this
Section 17.8 shall survive for 2 years after the payment in full of the Obligations.

     17.9. Integration. This Agreement, together with the other Loan Documents, reflects
the entire understanding of the parties with respect to the transactions contemplated hereby and
shall not be contradicted or qualified by any other agreement, oral or written, before the date
hereof.

     17.10. License to Gathering Systems. In the event that the Gathering Systems are
foreclosed upon pursuant to the Mortgages, Agent, on behalf of Lenders, hereby grants to each
Pledging Subsidiary a non-royalty bearing license to transport Hydrocarbons produced from Wells not
included within the Mortgaged Properties under any then existing agreement regarding transport and
for the life of such transportation agreement or in the absence of a written agreement consistent
with the past practices and customs of the parties in the industry.

     17.11. Agency of the Borrower for Each Pledging Subsidiary. Each of the Pledging
Subsidiaries irrevocably appoints the Borrower as its agent for all purposes relevant to this
Agreement, including the giving and receipt of notices and execution and delivery of all documents,
instruments, and

-95-

 

certificates contemplated herein (including, without limitation, execution and delivery to the
Agent of Reserve Reports and all modifications hereto). Any acknowledgment, consent, direction,
certification, or other action which might otherwise be valid or effective only if given or taken
by all or any of the Borrower and the Pledging Subsidiaries or acting singly, shall be valid and
effective if given or taken only by the Borrower, whether or not any of the Pledging Subsidiaries
joins therein, and the Agent and the Lenders shall have no duty or obligation to make further
inquiry with respect to the authority of the Borrower under this Section 17.11, provided
that nothing in this Section 17.11 shall limit the effectiveness of, or the right of the
Agent and the Lenders to rely upon, any notice, document, instrument, certificate, acknowledgment,
consent, direction, certification, or other action delivered by any Pledging Subsidiary pursuant to
this Agreement.

     17.12. Development Projects. Nothing contained in the Loan Documents shall prohibit
any Pledging Subsidiary from developing any Oil and Gas Properties that do not constitute
Collateral.

     17.13. Reserve Arbitration. In the event of any dispute as to the amount of a reserve
established by Agent under Section 2.1(b) clauses (i) through (vi) inclusive, Agent and
Borrower shall use good faith efforts to resolve any such dispute through full and meaningful
discussions, which shall include one face-to-face meeting and a written exchange of positions. In
the event this written exchange indicates that the dispute cannot be resolved, the dispute shall be
referred to arbitration in the city of Atlanta, Georgia by one arbitrator (selected by the American
Arbitration Association but having extensive work experience in establishing such type of reserves
under oil and gas secured credit facilities), in accordance with the provisions set forth herein
and the Commercial Arbitration Rules of the American Arbitration Association then in effect. The
decision of the arbitrator shall establish the amount of such reserve.

     17.14. USA PATRIOT Act. Each Lender that is subject to the requirements of the USA
Patriot Act (Title 111 of Pub. L. 107-56 (signed into law October 26, 2001)) (the “Act”)
hereby notifies Borrower that pursuant to the requirements of the Act, it is required to obtain,
verify and record information that identifies Borrower, which information includes the name and
address of Borrower and other information that will allow such Lender to identify Borrower in
accordance with the Act.

[Signature page to follow.]

-96-

 

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed and
delivered as of the date first above written.

	 	 	 	 	 
	 	ENERGY CORPORATION OF AMERICA,

a West Virginia corporation

 	 
	 	By:  	/s/ Michael
S. Fletcher	 
	 	 	Name:  	Michael
S. Fletcher 	 
	 	 	Title:  	CFO 	 
	 
	 	WELLS FARGO FOOTHILL, INC.,

a California corporation, as Agent and as a Lender

 	 
	 	By:  	/s/ Gary
Forlenza	 
	 	 	Name:  	Gary
Forlenza 	 
	 	 	Title:  	VP 	 
	 
	 	BANK OF AMERICA, N.A.,

as a Lender

 	 
	 	By:  	/s/ Charles
W. Patterson	 
	 	 	Name:  	Charles
W. Patterson 	 
	 	 	Title:  	Managing
Director 	 
	 

     For purposes of acknowledging agreement to the terms, provisions, and conditions of this
Agreement (including, without limitation, the terms of Section 17.11, Eastern American and
A&W are executing this Agreement.

	 	 	 	 	 
	 	EASTERN AMERICAN ENERGY CORPORATION,

a West Virginia corporation

 	 
	 	By:  	/s/ Donald
C. Suploe	 
	 	 	Name:  	Donald
C. Suploe 	 
	 	 	Title:  	President 	 
	 
	 	ALLEGHENY & WESTERN ENERGY CORPORATION,

a West Virginia corporation

 	 
	 	By:  	/s/ Donald
C. Suploe	 
	 	 	Name:  	Donald
C. Suploe 	 
	 	 	Title:  	President 	 
	 

Signature Page

 

 

EXHIBIT A-1

FORM OF ASSIGNMENT AND ACCEPTANCE AGREEMENT

     This ASSIGNMENT AND ACCEPTANCE AGREEMENT (“Assignment Agreement”) is entered into as
of                      between                                          (“Assignor”) and
                                         (“Assignee”). Reference is made to the Agreement
described in Item 2 of Annex I annexed hereto (the “Credit Agreement”).
Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in
the Credit Agreement.

     1. In accordance with the terms and conditions of Section 14 of the Credit Agreement,
the Assignor hereby sells and assigns to the Assignee, and the Assignee hereby purchases and
assumes from the Assignor, that interest in and to the Assignor’s rights and obligations under the
Loan Documents as of the date hereof with respect to the Obligations owing to the Assignor, and
Assignor’s portion of the Total Commitments and the Revolver Commitments, all as specified in
Item 4.b and Item 4.c of Annex I. After giving effect to such sale and
assignments, the Assignee’s portion of the Total Commitments and Revolver Commitments will be as
set forth in Item 4.b of Annex I. After giving effect to such sale and assignment,
the Assignor’s amount and portion of the Total Commitments and Revolver Commitments will be as set
forth in Item 4.d and Item 4.e of Annex I.

     2. The Assignor (a) represents and warrants that it is the legal and beneficial owner of the
interest being assigned by it hereunder and that such interest is free and clear of any adverse
claim; (b) makes no representation or warranty and assumes no responsibility with respect to any
statements, warranties or representations made in or in connection with the Loan Documents or the
execution, legality, validity, enforceability, genuineness, sufficiency or value of the Loan
Documents or any other instrument or document furnished pursuant thereto; and (c) makes no
representation or warranty and assumes no responsibility with respect to the financial condition of
Borrower or the performance or observance by Borrower of any of its obligations under the Loan
Documents or any other instrument or document furnished pursuant thereto.

     3. The Assignee (a) confirms that it has received copies of the Credit Agreement and the other
Loan Documents, together with copies of the financial statements referred to therein and such other
documents and information as it has deemed appropriate to make its own credit analysis and decision
to enter into this Assignment Agreement; (b) agrees that it will, independently and without
reliance, as it shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under the Loan Documents; (c) confirms that it is eligible as an
assignee under the terms of the Credit Agreement; (d) appoints and authorizes the Agent to take
such action as agent on its behalf and to exercise such powers under the Loan Documents as are
delegated to Agent by the terms thereof, together with such powers as are reasonably incidental
thereto; (e) agrees that it will perform in accordance with their terms all of the obligations
which by the terms of the Loan Documents are required to be performed by it as a Lender[; and (f)
attaches the forms prescribed by the Internal Revenue Service of the United States certifying as to
the Assignee’s status for purposes of determining exemption from United States withholding taxes
with respect to all payments to be made to the Assignee under the Credit Agreement or such other
documents as are necessary to indicate that all such payments are subject to such rates at a rate
reduced by an applicable tax treaty.]

     4. Following the execution of this Assignment Agreement by the Assignor and Assignee, it will
be delivered by the Assignor to the Agent for recording by the Agent. The effective date of this
Assignment (the “Settlement Date”) shall be the later of (a) the date of the execution hereof by
the Assignor and the Assignee, the payment by Assignor or Assignee to Agent for Agent’s sole and
separate

EXHIBIT A-1 — Page 1

 

 

account a processing fee in the amount of $5,000, and the receipt of any required consent of
the Agent, and (b) the date specified in Item 5 of Annex I.

     5. Upon recording by the Agent, as of the Settlement Date (a) the Assignee shall be a party to
the Credit Agreement and, to the extent of the interest assigned pursuant to this Assignment
Agreement, have the rights and obligations of a Lender thereunder and under the other Loan
Documents, and (b) the Assignor shall, to the extent of the interest assigned pursuant to this
Assignment Agreement, relinquish its rights and be released from its obligations under the Credit
Agreement and the other Loan Documents.

     6. Upon recording by the Agent, from and after the Settlement Date, the Agent shall make all
payments under the Credit Agreement and the other Loan Documents in respect of the interest
assigned hereby (including, without limitation, all payments of principal, interest and commitment
fees (if applicable) with respect thereto) to the Assignee. Upon the Settlement Date, the Assignee
shall pay to the Assignor the Assigned Share (as set forth in Item 4.b of Annex I)
of the principal amount of any outstanding loans under the Credit Agreement and the other Loan
Documents. The Assignor and Assignee shall make all appropriate adjustments in payments under the
Credit Agreement and the other Loan Documents for periods prior to the Settlement Date directly
between themselves on the Settlement Date.

     7. THIS ASSIGNMENT AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED AND ENFORCED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF                 .

[Remainder of page left intentionally blank.]

EXHIBIT A-1 — Page 2

 

 

     IN WITNESS WHEREOF, the parties hereto have caused this Assignment Agreement and
Annex I hereto to be executed by their respective officers thereunto duly authorized, as of
the first date above written.

	 	 	 	 	 
	[NAME OF ASSIGNOR]

as Assignor

 	 	 
	By:  	 	 	 
	 	Title: 	 	 	 
	 	 	 	 
	 
	[NAME OF ASSIGNEE]

as Assignee

 	 	 
	By:  	 	 	 
	 	Title: 	 	 	 
	 	 	 	 
	 
	ACCEPTED THIS _____ DAY

OF                                         

WELLS FARGO FOOTHILL, INC.

AS AGENT

 	 	 
	By:  	 	 	 
	 	Title: 	 	 	 
	 	 	 	 
	 

EXHIBIT A-1 — Page 3

 

 

ANNEX FOR ASSIGNMENT AND ACCEPTANCE AGREEMENT

ANNEX I

	 	 	 	 	 	 	 	 	 	 	 
	1.	 	Borrower	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	2.	 	Name and Date of Credit Agreement:	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	Second Amended and Restated Credit Agreement dated as of September
7, 2007, among Borrower, the lenders signatory thereto as the
Lenders, and Wells Fargo Foothill, Inc., a California corporation,
as the arranger and administrative agent for the Lenders.
	 
	 	 	 	 	 	 	 	 	 	 
	3.	 	Date of Assignment Agreement	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	4	 	Amounts:	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	a.	 	Assignor’s Total Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	Assignor’s Revolver Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	Assignor’s Term Loan Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	b.	 	Assigned Share of Total Commitment	 	
                   
               %
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	Assigned Share of Revolver Commitment	 	
                   
               %
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	Assigned Share of Term Loan Commitment	 	
                   
               %
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	c.	 	Assigned Amount of Total Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	Assigned Amount of Revolver Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	Assigned Amount of Term Loan Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	d.	 	Resulting Amount of Assignor’s Total Commitment after giving effect to the sale
	 	 	 	 	 	 
	 
	 	 	 	and Assignment to Assignee	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	Resulting Amount of Assignor’s Revolver Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	Resulting Amount of Assignor’s Term Loan Commitment	 	$	 	 	 	 
	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 
	 	e.	 	Assignor’s Resulting Share of Total Commitment after giving effect to the 	 	 	 	 	 	 
	 	 	 	 	
Assignment to Assignee	 	
                   
               %
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	Assignor’s Resulting Share of Revolving
Commitment	 	
                   
               %
	 
	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	Assignor’s Resulting Share of Term Loan
Commitment	 	
                 
                 %

 EXHIBIT A-1 — Page 4

 

 

	 	 	 	 	 	 	 
	5.

	 	Settlement Date
	 	 	 	 
	 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	6.	 	Notice and Payment Instructions, etc.	 	 
	 
	 	 	 	 	 	 
	 

	 	Assignee:
	 	Assignor	 	 
	 
	 	 	 	 	 	 
	7

	 	Agreed and Accepted:	 	 	 	 

	 	 	 	 	 	 	 	 	 	 	 	 	 
	[ASSIGNOR]	 	[ASSIGNEE]	 	 
	 
	By:

	 	 	 	 	 	By:	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 

	 	Title:
	 	 
	 	 	 	Title:
	 	 
	 	 
	 

	 	 	 	 
	 	 	 	 	 	 	 	 

	 	 	 	 	 
	Accepted:

WELLS FARGO FOOTHILL, INC., as Agent

 	 	 
	By:  	 	 	 
	 	Title: 	 	 
	 	 	 	 
	 

EXHIBIT A-1 — Page 5

 

 

EXHIBIT C-1

(Form of Compliance Certificate)

[on Borrower’s letterhead]

			
	To:	 	Wells Fargo Foothill, Inc., as Agent

under the below-referenced Credit Agreement

1110 Abernathy Road, Suite 1600

Atlanta, Georgia 30328

Attn.: Business Finance Division Manager

			
	Re:	 	Compliance Certificate dated
                    
                    

Ladies and Gentlemen:

     Reference is made to that certain Second Amended and Restated Credit Agreement dated as of
September 7, 2007 (the “Credit Agreement”) among Energy Corporation of America, a West
Virginia corporation (the “Borrower”), the lender or lenders signatory thereto (the
“Lenders”), and Wells Fargo Foothill, Inc., a California corporation, as the arranger and
administrative agent for the Lenders (“Agent”). Capitalized terms used in this Compliance
Certificate have the meanings set forth in the Credit Agreement unless specifically defined herein.

     Pursuant to Section 6.3 of the Credit Agreement, the undersigned officer of the
Borrower hereby certifies that:

     1. The financial information of the Borrower furnished in Schedule 1 attached hereto,
has been prepared in accordance with GAAP (except for year end adjustments and the lack of
footnotes, in the case of financial statements delivered under Section 6.3(a) of the Credit
Agreement) and fairly presents in all material respects the financial condition of the Borrower.

     2. Such officer has reviewed the terms of the Credit Agreement and has made, or caused to be
made under his/her supervision, a review in reasonable detail of the transactions and condition of
the Borrower during the accounting period covered by the financial statements delivered pursuant to
Section 6.3 of the Credit Agreement.

     3. Such review has not disclosed the existence on and as of the date hereof, and the
undersigned does not have knowledge of the existence as of the date hereof, of any event or
condition that constitutes a Default or Event of Default, except for such conditions or events
listed on Schedule 2 attached hereto, specifying the nature and period of existence thereof
and what action the Borrower has taken, is taking, or proposes to take with respect thereto.

     4. The representations and warranties of the Borrower contained in the Credit Agreement and
the other Loan Documents are true and correct in all material respects on and as of the date of
such certificate, as though made on and as of such date (except to the extent that such
representations and warranties relate solely to an earlier date). Without limiting the generality
of the foregoing, the Borrower is in compliance with the covenants contained in Section
7.20 of the Credit Agreement as demonstrated on Schedule 2 hereof.

EXHIBIT C-1 — Page 1

 

 

     IN WITNESS WHEREOF, this Compliance Certificate is executed by the undersigned this ___ day
of                     , 200___.

	 	 	 	 	 
	 	ENERGY CORPORATION OF AMERICA,

a West Virginia corporation,

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

EXHIBIT C-1 — Page 2

 

 

SCHEDULE 1

EXHIBIT C-1 — Schedule 1

 

 

SCHEDULE 2

     1. Minimum EBITDAX. Borrower’s EBITDAX (on a consolidated basis), on a rolling
four-quarter basis ending                     ,                      is $                    , which amount [is/is not] greater
than or equal to the amount set forth in Section 7.20(a)(i) of the Credit Agreement for the
corresponding period.

     2. Book Net Worth. Borrower’s Book Net Worth (on a consolidated basis), for the
quarter ending                     ,                      is $                    , which amount [is/is not] greater than or
equal to the amount required in Section 7.20(a)(ii) of the Credit Agreement for the
corresponding period.

     3. Maximum Capital Expenditures. If applicable under Section 7.20(b) of the
Credit Agreement, the aggregate amount of capital expenditures made or committed to be made to date
in the current fiscal year is $                    , which amount [is/is not] in excess of 120% of
Projections set forth in Section 7.20(b) of the Credit Agreement for the corresponding
period.

EXHIBIT C-1 — Schedule 2

 

 

EXHIBIT L-1

FORM OF LIBOR NOTICE

Wells Fargo Foothill, Inc., as Agent

under the below referenced Credit Agreement

2450 Colorado Avenue

Suite 3000 West

Santa Monica, California 90404

Attention:                                        

Ladies and Gentlemen:

     Reference is made to that certain Second Amended and Restated Credit Agreement dated as of
September 7, 2007 (the “Credit Agreement”) among Energy Corporation of America, a West
Virginia corporation (the “Borrower”), the lender or lenders signatory thereto (the
“Lenders”), and Wells Fargo Foothill, Inc., a California corporation, as the arranger and
administrative agent for the Lenders (“Agent”). Capitalized terms used in this LIBOR
Notice have the meanings set forth in the Credit Agreement unless specifically defined herein.

     This LIBOR Notice represents Borrower’s request to elect the LIBOR Option with respect to
outstanding Advances in the amount of $                                          (the “LIBOR Rate Advance”)[, and is a
written confirmation of the telephonic notice of such election given to Agent].

     Such LIBOR Rate Advance will have an Interest Period of 1, 3, 6 or 12 month(s) commencing on                                         .

     This LIBOR Notice further confirms Borrower’s acceptance, for purposes of determining the rate
of interest based on the LIBOR Rate under the Credit Agreement, of the LIBOR Rate as determined
pursuant to the Credit Agreement.

Exhibit L-1 — Page 1

 

 

     Borrower represents and warrants that (i) as of the date hereof, each representation or
warranty contained in or pursuant to any Loan Document, any agreement, instrument, certificate,
document or other writing furnished at any time under or in connection with any Loan Document, and
as of the effective date of any advance, continuation or conversion requested above is true and
correct in all material respects (except to the extent any representation or warranty expressly
related to an earlier date), (ii) each of the covenants and agreements contained in any Loan
Document have been performed (to the extent required to be performed on or before the date hereof
or each such effective date), and (iii) no Default or Event of Default has occurred and is
continuing on the date hereof, nor will any thereof occur after giving effect to the request above.

	 	 	 	 	 
	 	Dated: 	 	 
	 	

ENERGY CORPORATION OF AMERICA,

a West Virginia corporation,

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	Acknowledged by:

WELLS FARGO FOOTHILL, INC.

as Agent

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 

Exhibit L-1 — Page 2

 

 

SCHEDULE C-1

COMMITMENTS

	 	 	 	 	 	 	 	 	 	 	 	 	 
	Lender	 	Revolver Commitment	 	Term Loan
 Commitment	 	Total Commitment
	Wells Fargo
Foothill, Inc.
	 	$	50,000,000	 	 	$	50,000,000	 	 	$	100,000,000	 
	Bank of America, N.A.
	 	$	50,000,000	 	 	$	50,000,000	 	 	$	100,000,000	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 
	All Lenders
	 	$	100,000,000	 	 	$	100,000,000	 	 	$	200,000,000	 

Schedule C-1 — Page 1

 

 

SCHEDULE D-1

DESIGNATED ACCOUNT

Account number _____ of Borrower maintained with the Designated Account Bank, or such other deposit
account of Borrower (located within the United States) that has been designated as such, in writing
by, Borrower to Agent.

“Designated Account Bank” means Wells Fargo Bank, National Association.

Schedule D-1 — Page Solo

 

 

SCHEDULE P-1

PARTNERSHIPS

PARTNERSHIP OR JOINT VENTURE

Arcadia Drilling Fund, a limited partnership

Arcadia Drilling Fund No. 2, a limited partnership

Arcadia Drilling Fund No. 3, a limited partnership

Arcadia Drilling Fund No. 4, a general partnership

Arcadia Drilling Fund No. 6, a general partnership

Arcadia Drilling Fund No. 7, a general partnership

Bent Branch Project, a general partnership

Bevins Branch Partners Ltd.

Number II, Bevins Branch, Ltd.

Burning Fork Partners, a general partnership

Drift Branch Project

Eastern Producing Limited Partnership

Feds Creek Gas Project, a joint venture

JBC Drilling Company No. 4

JBC Drill Co. No. 5

Long Branch Partners, a general partnership

Lowe Farm Project, Ltd.

Marshall’s Branch Partners, Ltd., a limited partnership

Shelby Creek Partners, Ltd., a limited partnership

Swinge Camp General Partners

Swinge Camp Partners

Sycamore Creek Partners

VICC Mineral Project No. 8 an unincorporated joint venture

Willow River Fund (aka Consol Partnership No. One)

Wisconsin Fund Partnership Number One

Schedule P-1 — Page 1

 

 

SCHEDULE 2.7(a)

CASH MANAGEMENT BANKS

Wells Fargo Bank, National Association

Schedule 2.7(A) — Page 1

 

 

SCHEDULE 5.1(a)

BORROWING BASE PROPERTIES

[see attached]

Schedule 5.1(a) — Page 1

 

 

SCHEDULE 5.1(b)

MATERIAL CONTRACTS

[see attached]

Schedule 5.1(b) — Page 1

 

 

SCHEDULE 5.7

CHIEF EXECUTIVE OFFICE AND FEIN OF BORROWER AND SUBSIDIARIES

[see attached]

Schedule 5.7 — Page 1

 

 

SCHEDULE 5.8(b)

CAPITALIZATION OF BORROWER

[see attached]

Schedule 5.8(b) — Page 1

 

 

SCHEDULE 5.8(c)

CAPITALIZATION OF BORROWER’S SUBSIDIARIES

[see attached]

Schedule 5.8(c) — Page 1

 

 

SCHEDULE 5.10

LITIGATION

[see attached]

Schedule 5.10 — Page 1

 

 

SCHEDULE 5.14

ENVIRONMENTAL MATTERS

[see attached]

Schedule 5.14 — Page 1

 

 

SCHEDULE 5.16

INTELLECTUAL PROPERTY

[see attached]

Schedule 5.16 — Page 1

 

 

SCHEDULE 5.18

DEMAND DEPOSIT ACCOUNTS

[see attached]

Schedule 5.18 — Page 1

 

 

SCHEDULE 5.20

PERMITTED INDEBTEDNESS

[see attached]

Schedule 5.20 — Page 1

 

 

SCHEDULE 5.22

TAXES

[see attached]

Schedule 5.22 — Page 1

 

 

SCHEDULE 5.23

INSURANCE

[see attached]

Schedule 5.23 — Page 1

 

 

SCHEDULE 5.25

CLAIMS AND LIABILITIES

[see attached]

Schedule 5.25 — Page 1

 

 

SCHEDULE 5.26(b)

CUMULATIVE IMBALANCES IN GAS PRODUCTION AND “TAKE OR PAY” PAYMENTS

[see attached]

Schedule 5.26(b) — Page 1

 

 

SCHEDULE 5.27

Operations of Borrowing Base Properties

[see attached]

Schedule 5.27 — Page 1

 

 

SCHEDULE 5.28

HEDGING AGREEMENTS

[see attached]

Schedule 5.28 — Page 1

 

 

SCHEDULE 6.2(c)

TOTAL VALUE OF TOTAL PROVED DEVELOPED PRODUCING PRESERVES

[see attached]

Schedule 6.2(c) — Page 1

 

 

SCHEDULE 7.2

LIENS

[see attached]

Schedule 7.2 — Page 1

 

 

SCHEDULE 7.13

EXISTING INVESTMENTS

[see attached]

Schedule 7.13 — Page 1

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