Document:

exv10w3

 

Exhibit
10.3

EMPLOYEE PARTICIPATION PLAN AGREEMENT

     The Company has adopted an Employee Participation Plan (the “Plan”) as set forth in the
provisions of this Employee Participation Plan Agreement (the “Agreement”).

ARTICLE I

PURPOSE

     1.01 The purposes of the Plan are to:

     (a) closely associate the interest of the employees of the Company and its Affiliates
with the shareholders by reinforcing the relationship between Participant’s rewards and
increase in Company assets.

     (b) maintain competitive compensation levels; and

     (c) provide an incentive to employees for continued employment with the Company.

     1.02 All capitalized terms have the meaning as set forth in Article II hereof or as otherwise
provided.

ARTICLE II

DEFINITIONS

     2.01 Certain Definitions. As used in this Agreement, the
following terms have the following meanings:

     “Acquisition Costs” means the costs of acquiring a leasehold interest, including,
without limitation, lease bonuses, direct costs of seismic data and interpretation, lease
broker services, title examinations, filing fees.

     “Affiliate ” means, when used with reference to a specified Person, (a) any Person
directly or indirectly owning, controlling or holding power to vote 50% or more of the
outstanding voting securities of the specified Person, (b) any Person 50% or more of whose
outstanding voting securities are directly or indirectly owned, controlled or held with
power to vote by the specified Person, (c) any Person directly or indirectly controlling,
controlled by or under common control with the specified Person, (d) if the specified Person
is a corporation, any officer or director of the specified Person or of any corporation
directly or indirectly controlling that specified Person, (e) if the specified Person is a
partnership, any Company or if the Company is a partnership, the Companies of that
partnership, and (f) if the specified Person is an individual, such individual’s spouse and
natural and adoptive lineal descendants and trusts for the benefit of any such Persons. For
purposes of this definition, the ability through share ownership or contractual arrangement
to elect or cause the election of a majority of the board of directors of a corporation
shall constitute “control.”

     “Change in Control” “Change in Control” shall be deemed to have occurred if the
conditions set forth in any one or more of the following shall have been satisfied:

     (i) any “person,” as such term is used in Section 13(d) and 14(d) of the Securities
Exchange Act of 1934 (the “Exchange Act”) (other than N. Malone Mitchell 3rd and Amy
Mitchell, a Person which they or their heirs, devisees or grantees controls or the heirs,
devisees or grantees of N. Malone Mitchell 3rd or Amy Mitchell; the Company; any
trustee; or other fiduciary holding securities under an employee benefit plan of the Company
or any corporation owned, directly or indirectly, by the shareholders of the Company in
substantially the same proportions as their ownership of stock of the Company), is or
becomes the “beneficial owner” (as defined in Rule 13d-3 promulgated under the Exchange
Act), directly or indirectly, of securities of the Company representing fifty percent (50%)
or more of the combined voting power of the Company’s then outstanding securities;

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     (ii) during any period of two consecutive years (not including any period prior to the
Effective Date of the Plan), individuals who at the beginning of such period constitute the
Board of Directors, and any new director (other than a director designated by a person who
has entered into an agreement with the Company to effect a transaction described in
paragraph (a), (c) or (d) of this Section 14(b)) whose election by the Board of Directors or
nomination for election by the Company’s shareholders was approved by a vote of at least
two-thirds (2/3) of the directors then still in office who either were directors at the
beginning of the period or whose election or nomination for election was previously so
approved, cease for any reason other than normal retirement, death or disability to
constitute at least a majority thereof;

     (iii) completion of a merger or consolidation of the Company with any other person,
other than (i) a merger or consolidation which would result in the voting securities of the
Company outstanding immediately prior thereto continuing to represent (either by remaining
outstanding or by being converted into voting securities for the surviving entity) more than
fifty percent (50%) of the combined voting power of the voting securities of the Company or
surviving entity outstanding immediately after such merger or consolidation, or (ii) a
merger in which the Company is the surviving entity but no “person” (as defined above)
acquires more than fifty percent (50%) of the combined voting power of the Company’s then
outstanding securities; or

     (iv) the shareholders of the Company approve a plan of complete liquidation of the
Company or an agreement for the sale or disposition by the Company of all or substantially
all of the Company’s assets (or any transaction having a similar effect).

     “Company” means Riata Energy, Inc., a Texas corporation.

     “Costs” means all Acquisition Costs and Well Costs.

     “Event of Forfeiture” has the meaning set forth in Section 4.13.

     “Exchange Act” means the Securities Exchange Act of 1934, as amended.

     “Independent Legal Counsel” shall mean an attorney, selected in accordance with the
provisions of Section 6(b) hereof, who shall not have otherwise performed services for
Indemnitee, the Company, any person that controls the Company or any of the directors of the
Company, within five years preceding the time of such selection (other than in connection
with seeking indemnification under this Agreement). Independent Legal Counsel shall not be
any person who, under the applicable standards of professional conduct then prevailing,
would have a conflict of interest in representing either the Company or Indemnitee in an
action to determine Indemnitee’s rights under this Agreement, nor shall Independent Legal
Counsel be any person who has been sanctioned or censured for ethical violations of
applicable standards of professional conduct. “Code” means the Internal Revenue Code of
1986, as amended.

     “Interest” means the interest attributable to a Participant in a Project.

     “Lease” means a lease, mineral interest, mineral servitude, license, concession or
other right covering oil, gas and related hydrocarbons (or a contractual right to acquire
such an interest) or an undivided interest therein or portion thereof, together with all
appurtenances, easements, permits, licenses, servitudes and rights-of-way situated upon or
used or held for future use in connection with such an interest or the exploration,
development or production thereof. A “Lease” shall also mean and include all rights and
interests in all lands and interests unitized or pooled therewith pursuant to any law, rule,
regulation or agreement. A Lease does not include any royalty, overriding royalty or other
non-cost bearing interest owned by the Company.

     “Monthly Allowance” means a dollar amount allocated to a Participant each month to pay
Costs incurred in Projects in which the Participant has an Interest.

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     “Operating Agreement” means an agreement between the operator and non-operating
interest owners in a Lease for the testing, development and operation of a tract of land or
Lease for the exploration and development of oil, gas, minerals or hydrocarbons.

     “Participant” means an individual designated by the Company eligible to participate in
the Plan.

     “Person” means an individual, corporation, partnership, limited liability company,
business trust or other legal entity.

     “Project” means an area designated by the Company in which the Company owns or intends
to acquire Leasehold Interests and in which it elects to allow Participants to participate
in a portion of exploration and production activities attributable to the interest in a
Lease owned by the Company. The Company may alter or amend at any time the designation of a
Project, but no alteration or amendment will affect operations conducted on the Project
prior to such alteration or amendment. A designation of a Project will include the aerial
extent of the Project; depth limitations, if any, of the Project; the portion of the
Company’s Working Interest in the Project available for Participants, and such other
information, limitations or conditions as the Company in its sole discretion shall
determine.

     “Project Information” means such information as the Company determines in its sole
discretion to provide to Participants. To the extent practicable, Project Information will
include geologic or engineering information; operating agreements, farmout or other
agreements applicable to the Project; and exploration or drilling activities the Company
initially intends to undertake on the Project.

     “Regulations” mean the regulations promulgated by the United States Department of
Treasury pursuant to the Code. All references herein to sections of the Treasury
Regulations shall include corresponding provision or provisions of succeeding, similar,
substitute, temporary or final Treasury Regulations.

     “Securities Act” means the Securities Act of 1933, as amended.

     “Transfer ” means any sale, transfer, assignment, pledge, encumbrance, hypothecation,
gift or disposition of an Interest in whole or in part, or any rights or benefits to which a
holder of an Interest may be entitled as provided in this Agreement, including, without
limitation, the right to receive distributions in cash or in kind.

     “Well” means a well in which the Company holds a Working Interest derived from its
ownership of one or more Leases.

     “Well Costs” means the Participant’s share of costs pursuant to any Operating Agreement
for the drilling, completing, equipping, deepening or sidetracking a Well, including,
without limitation: (i) the costs of surveying and staking the Well, the costs of any
surface damages and the costs of clearing, coring, testing, logging and evaluating the Well;
(ii) the costs of casing, cement and cement services for the Well; (iii) the cost of
plugging and abandoning the Well (including standard and customary remediation activities
associated therewith), if it is determined that the Well would not produce in commercial
quantities and should be abandoned; (iv) all direct charges and overhead chargeable with
respect to the Well under any applicable Operating Agreement until such time as all
operations are carried out as required by applicable regulations and sound engineering
practices to make such Well ready for production, including the installation and testing of
wellhead equipment, or to plug and abandon a dry hole; (v) all costs incurred recompleting
or plugging back any Well; (vi) all costs incurred in reworking any Well if the rework is
covered by an authority for expenditure under the applicable Operating Agreement; (vii) all
costs incurred in locating, drilling, completing, equipping, deepening or sidetracking any
enhanced recovery producer or injector Well (including the costs of all necessary surface
equipment such as steam generators, compressors, water treating facilities, injection pumps,
flow lines and steam lines); and (viii) the costs of
constructing production facilities, pipelines and other facilities necessary to develop a Property and produce, collect, store,
treat, deliver, market, sell or otherwise dispose of
oil, gas and other hydrocarbons and minerals therefrom; provided, that Well Costs
shall not include any Acquisition Costs.

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     “Working Interest” means a fractional operating interest in a Lease that permits the
Company to explore, develop and produce one or more Properties and bear its percentage of
the costs and expenses relating to the maintenance and development of and operations
relating to such properties in return for a share of the mineral production from the
property.

     2.02 Construction. Whenever the context requires, the
gender of all words used in this Agreement includes the masculine, feminine and neuter. All
references to Articles and Sections refer to articles and sections of this Agreement, and all
references to exhibits are to Exhibits attached to this Agreement, each of which is made a part of
this Agreement for all purposes.

ARTICLE III

PROJECTS

     3.01 Notification. The Company will notify each Participant of
any Project in which the Participant is allowed to participate. The Participant shall have a
one-time election to participate in the Project.

     3.02 Project Information. The notification will include a description of the Project and the
activities the Company has already conducted or initially intends to conduct in the future,
including Costs incurred or expected initially to be incurred. Unless expressly identified as an
actual Cost, any Costs will be estimates only.

     3.03 Elections. The Company will establish the date by which Participants may elect to
participate in a Project. Any elections must be made in writing and delivered to the Company in
the manner designated by the Company on or before the election date established by the Company.
The failure to respond shall be deemed an election not to participate in the Project, and a
Participant shall thereafter have no right to participate in the Project.

     3.04 Amount. If a Participant elects to participate in a Project, the election shall include
the percentage interest of the Project the Participant wishes to select. In the event all
Participants’ elections exceed 100% of the amount available to Participants, the Company may elect
to increase the amount available in the Project, proportionately reduce each Participant’s
percentage interest in the Project, or both.

     3.05 No Increase or Decrease. Once established, a Participant’s percentage interest in a
Project is fixed, and the Participant may not change the percentage interest in the Project.

ARTICLE IV

PARTICIPANTS

     4.01 Designation of Participants. The Company shall from time to time designate an Employee
as a Participant. Once designated as a Participant, the Employee shall remain a Participant until
death, permanent disability (as determined by the Company in its sole discretion), termination of
status as an Employee for any reason, or election by the Company in its sole discretion to withdraw
the Employee’s designation as a Participant.

     4.02 Monthly Allowance. Each Participant shall receive a Monthly Allowance as determined
by the Company in its sole discretion. The Monthly Allowance may be increased, decreased or
eliminated at any time by the Company in its sole discretion, provided that any change will be
prospective only. All or any portion of the Monthly Allowance may be used each month by a
Participant to pay for Costs billed to the Participant in the previous Month or may be accumulated
by the Participant to pay for future Costs. In any event, all portions of a Monthly Allowance must
be used within eleven (11) months after the Month in which the Monthly Allowance is received. Any
portion of the Monthly Allowance not used within such period shall be forfeited. Use of
accumulations of a Participant’s Monthly Allowance will be made on a first-in, first-out basis. In
no event shall a Participant be entitled to receive cash or other compensation in exchange or as a
substitute for the Monthly Allowance.

     4.03 Statements. Each month, or at such other time selected by the Company the Company will
deliver to each Participant a statement showing amount due from the Participant for activities
conducted in each Project or anticipated to be conducted on each Project. The Company may elect to
make cash calls for any activity in the

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manner allowed by any applicable Operating Agreement. Each
Participant shall be responsible for the percentage share of the actual Costs attributable to the
Interest of the Participant in a Project.

     4.04 Payment of Costs.

          (a) A Participant may use all or any portion of the Participant’s Monthly Allowance, including
any allowed accumulations, to pay all costs attributable to the Participant percentage interest in
Projects in which the Participant is participating. In the event a Participant’s Monthly
Allowance, including any allowed accumulations, is insufficient to pay Costs attributable to the
Participant, the Participant shall within the time established by the Company, or if no time is
established by the Company, within ten (10) days following delivery of the statement showing Costs,
deliver to the Company a check for the amount of such deficit.

          (b) If a Participant fails to discharge any financial obligation attributable to the
Participant’s Interest, including without limitation the failure to make any advance within the
period required for such payment the Participant shall be deemed to be a non-consenting party as to
the activity for which payment has not been made. In such event, the Company will allocate any
payments actually made including any Monthly Allowance, to the payment of Costs, as it may
determine in its sole discretion.

          (c) If any Costs remain unpaid for ten (10) days following the date payment was due, the
Participant shall be ineligible to elect to participate in any future Projects for as long as such
amounts remain unpaid.

          (d) Further, if a default in the payment of any financial obligation continues for a period of
ten (10) days after such payment was due, regardless of whether thereafter cured, the Company may
thereafter require advance payment from the Participant for all anticipated Costs.

     4.05 Non-Consent Elections. A Participant may elect not to participate in any activity of a
Project where the applicable Operating Agreement allows a non-operator a non-consent election, in
accordance with the terms of such provision.

     4.06 Distributions. At least monthly all cash which the
Company reasonably determines is not needed for the payment of any existing or reasonably
foreseeable Participant obligations and expenditures shall be distributed to each Participant
attributable to the Interest of such Participant.

     4.07 Withholding Taxes. The Company shall at all times be
entitled (but not obligated) to make payments required to discharge any obligation of the
Participant or the Company to withhold or make payments to any governmental authority with respect
to any federal, state or local tax liability of any Participant for such taxes arising out of such
Participant’s Interest. The amount of each such payment made by the Company with respect to any
Participant shall be deducted from any distributions otherwise payable to such Participant pursuant
to this Agreement. Notwithstanding anything contained in this Agreement to the contrary, in the
event the Company fails to withhold any federal, state or local taxes in respect of any Participant
when required to do so (including as a result of any change in law or interpretation thereof or
otherwise) any liability incurred by the Company (including any interest and penalties) as a result
of such failure shall be borne by such Participant (and charged to such Participant, and such
Participant shall indemnify and hold harmless the Company from and against any and all claims,
demands, liabilities, costs, damages and causes of action of any nature whatsoever related to such
withholding obligation.

     4.08 Access to Information. A Participant or a permitted
assignee of an Interest, on written request to the Company stating the purpose, may examine, at any
reasonable time, for any proper purpose, records kept by the Company relating to the Interest of
the Participant.

     Information provided to or obtained by a Participant or a permitted assignee of an Interest
shall be used by such Participant or assignee solely in furtherance of his or her interests as a
Participant and shall not be used for any other purpose. Participant or a permitted
assignee of an
Interest shall maintain the confidentiality of all such information and shall not disclose such
information to any other Person. If a Participant or a
permitted assignee of an Interest receives a request to disclose information relating to the
Partnership or Property under the terms of a subpoena, investigative demand or order issued by a
court or governmental agency, the Participant or a permitted

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assignee of an Interest shall promptly
notify the Company of the existence, terms and circumstances surrounding such request, so that the
Company may seek a protective order or confidential treatment of such information. If the Company
receives a subpoena, document request or any other notice or document seeking or requesting
information relating to a Participant’s Interest the Company may acquire the Interest pursuant to
Section 4.12 hereof.

     4.09 No Liens or Encumbrances. Participant shall not mortgage, assign, transfer, or encumber
the Interest.

     4.10 Investment Representations of the Participants.

          (a) In order to become a Participant, an employee
must represent and warrant to the Company that, as a Participant, such employee is acquiring his or
her Interest for his or her own account, for investment purposes only and not with a view to the
resale or distribution thereof, in whole or in part. And will acknowledge that the Interests have
not been registered under the Securities Act.

          (b) Each Participant represents that he or she has
such knowledge and experience in financial and business matters as to be capable of evaluating the
merits and risks of an investment pursuant to the Plan.

     4.11 Transfer Restrictions. Except as provided in
Section 4.15, no Participant shall Transfer any Interest therein without the prior written consent
of the Company. Any attempted Transfer in violation of this section shall be null and void, and
the Company shall refuse to recognize any such Transfer and shall not reflect on its records any
change in ownership of such Interest pursuant to any such Transfer.

     4.12 Company’s Right of Purchase. The Company shall have
the right and option to purchase any or all Interests held by a Participant following such
Participant’s (i) termination of employment with the Company for any reason, including death,
permanent disability, voluntary resignation, termination for cause or termination without cause, or
(ii) the causes stated in Section 4.08 hereof. The Participant’s admission to or conviction of a
felony or misdemeanor offense against the Company or any of its Affiliates (“Event of Forfeiture”)
shall result in the forfeiture of the Participant’s Interest without any payment to the
Participant. The Company may exercise such right and option of purchase within one hundred twenty
(120) days of an Event of Forfeiture. The purchase price to be paid for the Interest shall be
equal to an amount computed as follows:

The
acquisition price of the Interest shall be based upon the present value of the proved developed producing and proved
undeveloped reserves, using the then current pricing schedule of the
Company’s primary lender and the most recent independent engineer’s
report, deducting anticipated capital expenditures, and applying a
fifteen percent (15%) discount rate for proved developed producing
reserves and a discount rate of thirty percent (30%) for proved
developed non-producing reserves. No value shall be given for
proved undeveloped reserves.

     To the extent the Company exercises its option to purchase a Participant’s Interest under this
provision, Participant, or the legal representative of or heir or designee of Participant, as the
case may be, shall execute such assignments and bills of sale to the Company as the Company may
reasonably request, free and clear of any liens or encumbrances created by the Participant.

     4.13 Change in Control and Sales. Upon a Change in Control, the Company shall
assign each Participant the Interest of the Participant, subject to all applicable operating and
other agreements. If Company elects to sell its interest in a Project, the Participant’s Interest
will also be included in such sales.

     4.14 Marketing. Production of oil and gas attributable to a Participant’s Interest shall be
marketed on the same terms and conditions as that of the outside owners in the respective Project.

     4.15 Permitted Transfers; Status as Assignee. A Participant may Transfer all or any portion
of his or her Interest (i) to the Company, (ii) to his or her spouse, parents or natural or
adoptive lineal descendants, or to one or more trusts or partnerships established exclusively for
the benefit of his or her spouse, parents or natural or adoptive lineal descendants;
provided, that any such permitted assignee shall receive and hold such rights subject to
the provisions of this Agreement, including, without limitation, the provisions of this Article
IV. A Participant

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intending to Transfer Interests pursuant to this Section 4.15 shall
provide at least 10 days prior written notice of such proposed transfer to the Company. In the
event the Company elects not to exercise its option to purchase the Interest of a Participant in
the Event of Forfeiture, the Company shall assign the Participant’s Interest to the Participant
without warranty of any kind, either express or implied.

     4.16 Specific Performance. The parties agree that the
Company and each Participant would be irreparably damaged if any of the provisions of this
Article IV are not performed in accordance with their specific terms and that monetary
damages would not provide an adequate remedy in such event. Accordingly, it is agreed that, in
addition to any other remedy to which they may be entitled, at law or in equity, the Company and
any nondefaulting Participant shall be entitled to injunctive relief to prevent breaches of the
provisions of this Article IV and specifically to enforce the terms and provisions hereof
in any action instituted in any court of competent jurisdiction.

ARTICLE V

ADMINISTRATION, ALLOCATIONS, AND DISTRIBUTIONS

     5.01
Administration.

          (a) The Plan shall be administered by a Committee composed of the President.

          (b) The Committee shall have the authority, in its sole discretion and from time to time to:

          (i) designate the employees who will be
Participants;

          (ii) establish the Monthly Allowance for each Participant;

          (iii) impose limitations, restrictions and conditions in connection with the Plan as
the Committee shall deem appropriate; and

          (iv) interpret the Plan, adopt, amend, and rescind rules and regulations relating to
the Plan, and make all other determinations and take all other action necessary or advisable
for the implementation and administration of the Plan.

          (c) Decisions and determinations of the Committee on all matters relating to the Plan shall be
in its sole discretion and shall be conclusive. No member of the Committee shall be liable for any
action taken or decision made in good faith relating to the Plan.

          (d) The Committee shall prepare such agreements, awards, notices or other documents necessary
to effectuate the intent of the Plan.

ARTICLE VI

BOOKS, RECORDS AND BANK ACCOUNTS

     6.01 Maintenance of Books. The books of account for each
Participant shall be maintained on an accrual basis in accordance with the terms of this Agreement.

     6.02 Accounts. The Company shall establish and maintain
one or more bank and investment accounts and arrangements for Participants’ funds with financial
institutions and firms that the Company determines. The Company need not establish separate
accounts for the Participants, and may commingle the funds of Participants with funds of its own.

ARTICLE VII

GENERAL PROVISIONS

     7.01
Offset. Whenever the Company is to pay any sum to
any Participant, any amounts that Participant owes the Company or its Affiliates may be deducted
from that sum before payment.

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     7.02 Notices. All notices, requests or consents required
or permitted to be given under this Plan must be in writing and shall be considered as properly
given if mailed by first class United States mail, postage paid, and registered or certified with
return receipt requested, or if delivered to the recipient in person, by courier or by facsimile
transmission. Notices, requests and consents shall be sent to a Participant at the address shown
on the records of the Company for each Participant. A Participant may change its address by giving
written notice to the Company. Any notice, request or consent to the Company shall be sent to the
Company at its principal place of business, to the attention of the President.

     7.03 Entire Agreement. This Agreement constitutes the
entire agreement of the Plan and supersedes all prior contracts or agreements with respect to the
Plan, whether oral or written.

     7.04 Effect of Waiver or Consent. A waiver or consent,
express or implied, to or of any breach or default by any Person in the performance by that Person
of its obligations with respect to the Company is not a consent or waiver to or of any other breach
or default in the performance by that Person of the same or any other obligations of that Person
with respect to the Company. Failure on the part of a Person to complain of any act of any Person
or to declare any Person in default with respect to the Company, irrespective of how long that
failure continues, does not constitute a waiver by that Person of its rights with respect to that
default until the applicable statute of limitations period has run.

     7.05 Amendment or Modification. Any amendment to this
Agreement by the Company may be made at any time, provided that no prior actions of any Participant
may be affected.

     7.06 Binding Effect. Subject to the restrictions on
Transfers set forth in this Agreement, this Agreement is binding on and inures to the benefit of
the Participant’s and their respective successors and assigns.

     7.07 Governing Law; Severability. THIS AGREEMENT IS
GOVERNED BY AND SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF TEXAS, EXCLUDING ANY
CONFLICT OF LAWS RULE OR PRINCIPLE THAT MIGHT REFER THE GOVERNANCE OR THE CONSTRUCTION OF THIS
AGREEMENT TO THE LAW OF ANOTHER JURISDICTION. If any provision of this Agreement or its
application to any Person or circumstance is held invalid or unenforceable to any extent, the
remainder of this Agreement and the application of that provision to other Persons or circumstances
is not affected and that provision shall be enforced to the fullest extent permitted by law.

     7.08 Further Assurances. In connection with this
Agreement and the transactions contemplated by it, each Participant shall execute and deliver any
additional documents and instruments as the Company may request, and perform any additional acts
that may be necessary or appropriate as the Company may request, to effectuate and perform the
provisions of this Agreement and those transactions.

     7.09 No Employment Contract. Nothing contained in this
Agreement shall be construed as conferring upon any Participant who is or may become an employee of
the Company or any Affiliate of the Company any right to continue in the employment of the Company
or any Affiliate of the Company for any period of time or interfere with or restrict in any way the
rights of the Company or any Affiliate of the Company or such Participant to terminate the
employment of such Participant at any time for any reason (or without any reason) whatsoever, with
or without cause.

     7.10 Termination. The Plan may be terminated at any time by the Company without liability or
obligation to the Company.

     7.11
Effective Date. The Effective Date of the Plan is
January 1, 2006.

8exv10w4

 

EXHIBIT 10.4

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT

between

RIATA ENERGY, INC.

 

as borrower,

ROC GAS COMPANY, LARIAT COMPRESSION COMPANY

ALSATE MANAGEMENT AND INVESTMENT COMPANY,

INTEGRA ENERGY, L.L.C.,

RIAGRA LAND AND CATTLE COMPANY,

LARIAT SERVICES, INC., PETROSOURCE ENERGY COMPANY, L.P. and

PETROSOURCE PRODUCTION COMPANY, L.P.,

as guarantors,

and

 

BANK OF AMERICA, N.A.

as lender

 

dated as of

January 12, 2006

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page i

 

 

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT

TABLE OF CONTENTS

	 	 	 	 	 	 	 
	ARTICLE I. — TERMS DEFINED	 	 	2	 
	 	 	 
	 	 	 	 
	SECTION 1.1.	 	Definitions
	 	 	2	 
	SECTION 1.2.	 	Accounting Terms and Determinations
	 	 	13	 
	SECTION 1.3.	 	Petroleum Terms
	 	 	14	 
	 	 	 
	 	 	 	 
	ARTICLE II. — THE CREDIT	 	 	14	 
	 	 	 
	 	 	 	 
	SECTION 2.1.	 	Renewal and Extension
	 	 	14	 
	SECTION 2.2.	 	Revolving Commitment
	 	 	14	 
	SECTION 2.3.	 	Note
	 	 	17	 
	SECTION 2.4.	 	Interest Rates; Payments
	 	 	17	 
	SECTION 2.5.	 	Mandatory Prepayments
	 	 	18	 
	SECTION 2.6.	 	Voluntary Prepayments
	 	 	19	 
	SECTION 2.7.	 	Final Maturity
	 	 	19	 
	SECTION 2.8.	 	Application of Payments
	 	 	19	 
	SECTION 2.9.	 	Non-Use Fee
	 	 	19	 
	SECTION 2.10.	 	Other Fees
	 	 	19	 
	 	 	 
	 	 	 	 
	ARTICLE III. — GENERAL PROVISIONS	 	 	20	 
	 	 	 
	 	 	 	 
	SECTION 3.1.	 	Time and Place of Payment
	 	 	20	 
	SECTION 3.2.	 	Application of Payments
	 	 	20	 
	SECTION 3.3.	 	Funding Losses
	 	 	20	 
	 	 	 
	 	 	 	 
	ARTICLE IV. — BORROWING BASE	 	 	21	 
	 	 	 
	 	 	 	 
	SECTION 4.1.	 	Reserve Reports; Proposed Borrowing Base
	 	 	21	 
	SECTION 4.2.	 	Redeterminations of the Borrowing Base and Monthly Reduction; Procedures and Standards
	 	 	21	 
	SECTION 4.3.	 	Borrowing Base Deficiency
	 	 	21	 
	SECTION 4.4.	 	Initial Borrowing Base
	 	 	22	 
	 	 	 
	 	 	 	 
	ARTICLE V. — COLLATERAL	 	 	22	 
	 	 	 
	 	 	 	 
	SECTION 5.1.	 	Security
	 	 	22	 
	SECTION 5.2.	 	Title Opinions
	 	 	23	 
	 	 	 
	 	 	 	 
	ARTICLE VI. — CONDITIONS PRECEDENT	 	 	23	 
	 	 	 
	 	 	 	 
	SECTION 6.1.	 	Conditions to each Revolving Loan Borrowing and each Letter of Credit
	 	 	23	 
	SECTION 6.2.	 	Materiality of Conditions
	 	 	24	 
	 	 	 
	 	 	 	 
	ARTICLE VII. — REPRESENTATIONS AND WARRANTIES	 	 	24	 
	 	 	 
	 	 	 	 
	SECTION 7.1.	 	Corporate Existence and Power
	 	 	24	 
	SECTION 7.2.	 	Authorization; No Contravention
	 	 	24	 
	SECTION 7.3.	 	Binding Effect
	 	 	24	 

 FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page ii

 

 

	 	 	 	 	 	 	 
	SECTION 7.4.	 	Financial Information
	 	 	25	 
	SECTION 7.5.	 	Litigation
	 	 	25	 
	SECTION 7.6.	 	Taxes and Filing of Tax Returns
	 	 	25	 
	SECTION 7.7.	 	Ownership of Properties Generally
	 	 	25	 
	SECTION 7.8.	 	Evaluated Mineral Interests
	 	 	26	 
	SECTION 7.9.	 	Licenses, Permits, Etc
	 	 	26	 
	SECTION 7.10.	 	Compliance with Law
	 	 	26	 
	SECTION 7.11.	 	Full Disclosure
	 	 	26	 
	SECTION 7.12.	 	Organizational Structure, Nature of Business
	 	 	27	 
	SECTION 7.13.	 	Environmental Matters
	 	 	27	 
	SECTION 7.14.	 	Burdensome Obligations
	 	 	28	 
	SECTION 7.15.	 	Fiscal Year
	 	 	28	 
	SECTION 7.16.	 	No Default
	 	 	28	 
	SECTION 7.17.	 	Government Regulation
	 	 	28	 
	SECTION 7.18.	 	Insider
	 	 	28	 
	SECTION 7.19.	 	No Default
	 	 	28	 
	SECTION 7.20.	 	ERISA Compliance
	 	 	29	 
	SECTION 7.21.	 	Disclosure
	 	 	29	 
	 	 	 
	 	 	 	 
	ARTICLE VIII. — AFFIRMATIVE COVENANTS	 	 	30	 
	 	 	 
	 	 	 	 
	SECTION 8.1.	 	Information
	 	 	30	 
	SECTION 8.2.	 	Maintenance of Existence
	 	 	31	 
	SECTION 8.3.	 	Title Data
	 	 	31	 
	SECTION 8.4.	 	Right of Inspection
	 	 	31	 
	SECTION 8.5.	 	Maintenance of Insurance
	 	 	31	 
	SECTION 8.6.	 	Payment of Taxes and Claims
	 	 	31	 
	SECTION 8.7.	 	Compliance with Laws and Documents
	 	 	32	 
	SECTION 8.8.	 	Operation of Properties and Equipment
	 	 	32	 
	SECTION 8.9.	 	Environmental Law Compliance
	 	 	32	 
	SECTION 8.10.	 	Additional Documents
	 	 	32	 
	SECTION 8.11.	 	Swap Contracts
	 	 	32	 
	SECTION 8.12.	 	Opinion of Counsel
	 	 	33	 
	 	 	 
	 	 	 	 
	ARTICLE IX. — NEGATIVE COVENANTS	 	 	33	 
	 	 	 
	 	 	 	 
	SECTION 9.1.	 	Incurrence of Debt
	 	 	33	 
	SECTION 9.2.	 	Negative Pledge
	 	 	33	 
	SECTION 9.3.	 	Consolidations and Mergers
	 	 	33	 
	SECTION 9.4.	 	Asset Dispositions
	 	 	33	 
	SECTION 9.5.	 	Amendments to Organizational Documents
	 	 	34	 
	SECTION 9.6.	 	Use of Proceeds
	 	 	34	 
	SECTION 9.7.	 	Hedge Transactions
	 	 	34	 
	SECTION 9.8.	 	Fiscal Year
	 	 	34	 
	SECTION 9.9.	 	Change in Business
	 	 	34	 
	SECTION 9.10.	 	Change of Control or Management
	 	 	34	 
	SECTION 9.11.	 	Restrictions on Dividends and Distributions on and Redemptions of Capital Stock
	 	 	35	 

 FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page iii

 

 

	 	 	 	 	 	 	 
	 	 	 
	 	 	 	 
	ARTICLE X. — FINANCIAL COVENANTS	 	 	35	 
	 	 	 
	 	 	 	 
	SECTION 10.1.	 	Funded Debt Ratio
	 	 	35	 
	SECTION 10.2.	 	Minimum Fixed Charge Coverage
	 	 	35	 
	SECTION 10.3.	 	Calculations of Ratios
	 	 	35	 
	SECTION 10.4.	 	Net Worth
	 	 	35	 
	 	 	 
	 	 	 	 
	ARTICLE XI. — DEFAULTS	 	 	35	 
	 	 	 
	 	 	 	 
	SECTION 11.1.	 	Events of Default
	 	 	35	 
	 	 	 
	 	 	 	 
	ARTICLE XII. — CHANGE IN CIRCUMSTANCES	 	 	37	 
	 	 	 
	 	 	 	 
	SECTION 12.1.	 	Taxes
	 	 	37	 
	SECTION 12.2.	 	Discretion of Lender as to Manner of Funding
	 	 	38	 
	 	 	 
	 	 	 	 
	ARTICLE XIII. — MISCELLANEOUS	 	 	38	 
	 	 	 
	 	 	 	 
	SECTION 13.1.	 	Notices
	 	 	38	 
	SECTION 13.2.	 	No Waivers
	 	 	38	 
	SECTION 13.3.	 	Expenses: Indemnification
	 	 	39	 
	SECTION 13.4.	 	Right of Set-off
	 	 	40	 
	SECTION 13.5.	 	Amendments and Waivers
	 	 	40	 
	SECTION 13.6.	 	Survival
	 	 	40	 
	SECTION 13.7.	 	Limitation on Interest
	 	 	40	 
	SECTION 13.8.	 	Invalid Provisions
	 	 	41	 
	SECTION 13.9.	 	Waiver of Consumer Credit Laws
	 	 	41	 
	SECTION 13.10.	 	Successors and Assigns
	 	 	41	 
	SECTION 13.11.	 	Texas Law
	 	 	41	 
	SECTION 13.12.	 	Consent to Jurisdiction, Waiver of Immunities
	 	 	41	 
	SECTION 13.13.	 	Counterparts, Effectiveness
	 	 	42	 
	SECTION 13.14.	 	No Third Party Beneficiaries
	 	 	42	 
	SECTION 13.15.	 	Complete Agreement
	 	 	42	 
	SECTION 13.16.	 	Waiver of Jury Trial
	 	 	42	 
	SECTION 13.17.	 	Arbitration
	 	 	42	 
	SECTION 13.18.	 	Agreement Controls
	 	 	43	 

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page iv

 

 

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT

     THIS FIRST AMENDED AND RESTATED MASTER CREDIT AGREEMENT (this “Agreement”) is entered into as
of the 12th day of January 2006, between RIATA ENERGY, INC., a Texas corporation (“RIATA”) and BANK
OF AMERICA, N.A., a national banking association, (“Lender”). RIATA may hereinafter be referred to
as “Borrower.” This Agreement is joined by ROC GAS COMPANY, a Texas corporation (“ROC”), LARIAT
COMPRESSION COMPANY, a Texas corporation (“LARIAT COMPRESSION”), ALSATE MANAGEMENT AND INVESTMENT
COMPANY, a Texas corporation (“ALSATE MANAGEMENT”), INTEGRA ENERGY, L.L.C., a Texas limited
liability company (“INTEGRA”), RIAGRA LAND AND CATTLE COMPANY, a Texas corporation (“RIAGRA”),
LARIAT SERVICES, INC., a Texas corporation (“LARIAT”), PETROSOURCE ENERGY COMPANY, L.P., a Texas
limited partnership (“PS Energy”) and PETROSOURCE PRODUCTION COMPANY, L.P., a Texas limited
partnership (“PS Production”), ROC, LARIAT COMPRESSION, ALSATE MANAGEMENT, INTEGRA, RIAGRA, LARIAT,
and PS Energy and PS Production, may hereafter be individually referred to as a “Guarantor” or
collectively as “Guarantors”.

RECITALS:

     1. Borrower, Lender and others are parties to that certain Master Credit Agreement dated July
30, 2002 (as heretofore amended, the “Existing Credit Agreement”).

     2. The Existing Credit Agreement has been amended and modified most recently by Eighth
Amendment dated November 30, 2005.

     3. The continued lending transaction between the parties shall hereinafter be governed by the
terms of this Agreement.

     NOW, THEREFORE, in consideration of the premises, the representations, warranties, covenants
and agreements contained herein, and other good and valuable consideration, the receipt and
adequacy of which are hereby acknowledged, Borrower, Guarantors and Lender hereby agree that (i)
this Agreement shall operate to renew, amend, confirm and modify the rights and obligations of the
parties under the Existing Credit Agreement to the extent, and as provided, herein, but shall not
effect a novation thereof, and (ii) the Liens (as applicable) securing the obligations and
indebtedness under and evidenced by the Existing Credit Agreement and all other documents,
instruments or agreements evidencing, securing, guaranteeing or otherwise pertaining to the
Existing Credit Agreement shall not be extinguished, but shall be carried forward and shall secure
such obligations as renewed, amended, confirmed and modified hereby. Borrower, Guarantors and
Lender hereby agree further as follows:

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 1

 

ARTICLE I.  — TERMS DEFINED

SECTION 1.1. Definitions.

The following terms, as used herein, have the following meanings:

“Affiliate” means, as to any Person, any Subsidiary of such Person, or any other Person which,
directly or indirectly, controls, is controlled by, or is under common control with, such Person.
For the purposes of this definition, “control” (including, with correlative meanings, the terms
“controlled by” and “under common control with”), as used with respect to any Person, shall mean
the possession, directly or indirectly, of the power to direct or cause the direction of the
management and policies of such Person, whether through the ownership of voting securities or
partnership interests, or by contract or otherwise.

“Agreement” means this First Amended and Restated Master Credit Agreement as the same may hereafter
be modified, amended or supplemented from time to time.

“Applicable Environmental Law” means any federal, state or local Law, common Law, ordinance,
regulation or policy, as well as order, decree, permit, judgment or injunction issued, promulgated,
approved, or entered thereunder, relating to the environment, health and safety, or Hazardous
Substances (including, without limitation, the use, handling, transportation, production, disposal,
discharge or storage thereof) or to industrial hygiene or the environmental conditions on, under,
or about any real property owned, leased or operated at any time by Borrower or any Subsidiary of
Borrower or any real property owned, leased or operated by any other party including, without
limitation, soil, groundwater, and indoor and ambient air conditions.

“Applicable Lending Office” means, for Lender, the “Lending Office” of Lender (or of an affiliate
of Lender) designated on the signature page hereof or such other office of Lender (or an affiliate
of Lender) as Lender may from time to time specify to Borrower by written notice in accordance with
the terms hereof as the office by which the Loan is to be made and maintained.

“Applicable Margin” means, from time to time, the following percentages per annum, based upon the
Borrowing Base Utilization Ratio as set forth in the most recent information as determined by
Lender:

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	Borrowing Base	 	 	 	 	 	 	 	 	 	 	 	 	Unused Fee	 
	Level	 	 	Utilization Ratio	 	 	Eurodollar Rate	 	 	Base Rate	 	 	Percentage	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	I
	 	 	 	>75%	 	 	 	 	2.25	%	 	 	 	0.50	%	 	 	 	0.35	%	 
	II
	 	 	 	<75% >50%	 	 	 	 	2.00	%	 	 	 	0.50	%	 	 	 	0.25	%	 
	III
	 	 	 	<50%	 	 	 	 	1.50	%	 	 	 	0.00	%	 	 	 	0.125	%	 

Any increase or decrease in the Applicable Margin resulting from a change in the Borrowing Base
Utilization Ratio shall become effective as of, the first Domestic Business Day or

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 2

 

Eurodollar Business Day (as the case may be) immediately following the delivery of the Certificate
of Financial Officer delivered pursuant to Section 8.1(c) hereof.

“Authorized Officer” means, as to any Person, its Chief Executive Officer, its President, its Chief
Financial Officer, any of its Vice Presidents, its Treasurer or its corporate Secretary.

“Availability” means, at any time, (a) the amount of the Revolving Commitment in effect at such
time, minus (b) the Outstanding Revolving Credit at such time; provided that, the Availability is
at all times subject to the limitations of the Borrowing Base.

“Base Rate” means for any day a fluctuating rate per annum equal to the higher of (a) the Federal
Funds Rate plus 1/2 of 1% or (b) the rate of interest in effect for such day as publicly announced
from time to time by Bank of America as its “prime rate.” The “prime rate” is a rate set by Bank
of America based upon various factors including Bank of America’s costs and desired return, general
economic conditions and other factors, and is used as a reference point for pricing some loans,
which may be priced at, above, or below such announced rate. Any change in such rate announced by
Bank of America shall take effect at the opening of business on the day specified in the public
announcement of such change.

“Base Rate Loan” means a Loan that bears interest based on the Base Rate.

“Base Rate Tranche” means the portion of the principal of the Loans bearing interest with reference
to the Base Rate.

“Borrower” means a reference to Riata Energy, Inc., a Texas corporation.

“Borrower Guaranties” means those certain Continuing and Unconditional Guaranties dated as of
January 12, 2006, executed by the Guarantors for the benefit of Lender. The Borrower Guaranties
are attached hereto as Exhibit B.

“Borrowing Base” means the borrowing base amount as determined by Lender in accordance with Article
IV hereof.

“Borrowing Base Deficiency” means, as of any date, the amount, if any, by which the Outstanding
Revolving Credit on such date exceeds the Borrowing Base in effect on such date.

“Borrowing Base Properties” means all Mineral Interests evaluated by Lender for purposes of
establishing the Borrowing Base, and as detailed on Schedule I to Exhibit D hereto.

“Borrowing Base Surplus” means, as of any date, the amount, if any, by which the Borrowing Base in
effect on such date exceeds the Outstanding Revolving Credit on such date.

“Borrowing Base Utilization Ratio” means at any time the ratio determined by taking the average
outstanding balances under the Revolving Loan and dividing by the Borrowing Base, as determined on
a quarterly basis, in arrears. The Borrowing Base Utilization Ratio shall be calculated at the
same time as the deliver of the certificate required in Section 8.1(c).

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 3

 

“Closing Date” means January 12, 2006.

“Code” means the Internal Revenue Code of 1986, as amended.

“Consolidated Funded Debt” means, for any Person at any time, (a) all Debt of such Person and its
Consolidated Subsidiaries for borrowed money, (b) all Debt of such Person and its Consolidated
Subsidiaries representing the deferred purchase price of property or services and which is
evidenced by a note, bond, debenture or similar instrument, (c) all other Debt (including
capitalized lease obligations, other than usual and customary oil and gas leases) of such Person
and its Consolidated Subsidiaries on which interest charges are customarily paid or accrued, (d)
the unfunded or unreimbursed portion of all letters of credit issued for the account of such Person
and its Consolidated Subsidiaries, and (e) all Debt of such Person and its Consolidated
Subsidiaries representing funded contingent liabilities.

“Consolidated Subsidiary” or “Consolidated Subsidiaries” means, for any Person, any Subsidiary or
other entity the accounts of which would be consolidated with those of such Person in its
consolidated financial statements.

“Consolidated Tangible Net Worth” means, with respect to any Person at any time, (a) the
consolidated partners’ equity of such Person at such time, less (b) the consolidated Intangible
Assets of such Person at such time. For purposes of this definition, “Intangible Assets” means the
amount (to the extent reflected in determining such consolidated shareholder’s equity) of all
unamortized debt discount and expense, unamortized deferred charges, goodwill, patents, trademarks,
service marks, trade names, copyrights, and organization expenses. For the purposes of this
definition, intangible completion costs and intangible drilling costs are not taken into
consideration.

“Debt” means, for any Person at any time, without duplication, (a) all obligations of such Person
for borrowed money, (b) all obligations of such Person evidenced by bonds, debentures, notes or
other similar instruments, (c) all other indebtedness (including capitalized lease obligations,
other than usual and customary oil and gas leases) of such Person on which interest charges are
customarily paid or accrued, (d) all Guarantees by such Person, (e) the unfunded or unreimbursed
portion of all letters of credit issued for the account of such Person, (f) any amount owed by such
Person representing the deferred purchase price of property or services other than accounts payable
incurred in the ordinary course of business and in accordance with customary trade terms and which
are not more than ninety (90) days past the invoice date, (g) all obligations secured by a Lien on
any assets of such Person regardless of whether such obligations have been assumed by such Person
or are-recourse to the assets of such Person, and (h) all liability of such Person as a general
partner of a partnership for obligations of such partnership of the nature described in (a) through
(g) preceding.

“Default” means any condition or event which constitutes an Event of Default or which with the
giving of notice, lapse of time or both would, unless cured or waived, become an Event of Default.

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 4

 

“Distribution” by any Person, means (a) with respect to any stock issued by such Person or any
partnership, joint venture, limited liability company, membership or other interest of such Person,
the retirement, redemption, purchase, or other acquisition for value of any such stock or
partnership, joint venture, limited liability company, membership or other interest, (b) the
declaration or payment of any dividend or other distribution on or with respect to any stock,
partnership, joint venture, limited liability company, membership or other interest of any Person,
and (c) any other payment by such Person with respect to such stock, partnership, joint venture,
limited liability company, membership or other interest of such Person.

“Domestic Business Day” means any day except a Saturday, Sunday or other day on which national
banks in Amarillo, Texas, are authorized by Law to close.

“EBITDA” means earnings before interest, taxes, depreciation, depletion, and amortization.

“Environmental Complaint” means any complaint, summons, citation, notice, directive, order, claim,
litigation, investigation, proceeding, judgment, letter or other communication from any federal,
state or municipal authority or any other party against Borrower or any Subsidiary of Borrower
involving (a) a Hazardous Discharge from, onto or about any real property owned, leased or operated
at any time by Borrower or any Subsidiary of Borrower, (b) a Hazardous Discharge caused, in whole
or in part, by Borrower or any Subsidiary of Borrower or by any Person acting on behalf of or at
the instruction of Borrower or any Subsidiary of Borrower, or (c) any violation of any Applicable
Environmental Law by Borrower or any Subsidiary of Borrower.

“Eurodollar Business Day” means any Domestic Business Day on which commercial banks are open for
international business (including dealings in dollar deposits) in the applicable Eurodollar
interbank market.

“Eurodollar Rate” means, for any Interest Period therefor, the rate per annum (rounded upwards, if
necessary, to the nearest 1/100 of 1%) appearing on Telerate Page 3750 (or any successor page) as
the London interbank offered rate for deposits in Dollars at approximately 11:00 a.m. (London time)
two Eurodollar Business Days prior to the first day of such Interest Period for a term comparable
to such Interest Period. If for any reason such rate is not available, the term “Eurodollar Rate”
shall mean, for any Interest Period therefor, the rate per annum (rounded upwards, if necessary, to
the nearest 1/100 of 1%) appearing on Reuters Screen LIBO Page as the London interbank offered rate
for deposits in Dollars at approximately 11:00 a.m. (London time) two Eurodollar Business Days
prior to the first day of such Interest Period for a term comparable to such Interest Period;
provided, however, if more than one rate is specified on Reuters Screen LIBO Page, the applicable
rate shall be the arithmetic mean of all such rates (rounded upwards, if necessary, to the nearest
1/100 of 1%).

“Eurodollar Rate Loan” means a loan that bears interest based on the Eurodollar Rate.

“Evaluated Mineral Interests” means those Mineral Interests that are evaluated in determining
Recognized Value of the Mineral Interests in establishing the Borrowing Base.

“Events of Default” has the meaning set forth in Section 11.1.

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 5

 

“Exhibit” refers to an exhibit attached to this Agreement and incorporated herein by reference,
unless specifically provided otherwise.

“Existing Credit Agreement” has the meaning set forth in the recitals hereto.

“Existing Mortgages” means the mortgages, deeds of trust, security agreements, pledge agreements
and similar documents, instruments and agreements which establish Liens on certain Mineral
Interests, real property, and personal property owned by Borrower to secure Borrower’s obligations
under the Existing Credit Agreement, but excluding any previously executed and delivered mortgages
and security agreements that may be released on the Closing Date.

“Federal Funds Rate”   means, for any day, the rate per annum equal to the
weighted average of the rates on overnight Federal funds transactions with members of the Federal
Reserve System arranged by Federal funds brokers on such day, as published by the Federal Reserve
Bank of New York on the Business Day next succeeding such day; provided that (a) if such
day is not a Business Day, the Federal Funds Rate for such day shall be such rate on such
transactions on the next preceding Business Day as so published on the next succeeding Business
Day, and (b) if no such rate is so published on such next succeeding Business Day, the Federal
Funds Rate for such day shall be the average rate (rounded upward, if necessary, to a whole
multiple of 1/100 of 1%) charged to Bank of America on such day on such transactions as determined
by Agent.

“Financial Officer” of any Person means its Chief Financial Officer; provided, that if no Person
serves in such capacity, “Financial Officer” shall mean the highest ranking executive officer or
employee of such Person with responsibility for accounting, financial reporting, cash management
and similar functions.

“Fiscal Quarter” means the three (3) month periods ending on March 31, June 30, September 30 and
December 31 of each Fiscal Year.

“Fiscal Year” means each a twelve (12) month period ending on December 31 of each year.

“Governmental Authority” means any court or governmental department, commission, board, bureau,
agency, or instrumentality of any nation or of any province, state, commonwealth, nation,
territory, possession, county, parish, or municipality, whether now or hereafter constituted or
existing.

“Guarantee” by any Person means any obligation, contingent or otherwise, of such Person directly or
indirectly guaranteeing any Debt or other obligation of any other Person and, without limiting the
generality of the foregoing, any obligation, direct or indirect, contingent or otherwise, of such
Person (a) to purchase or pay (or advance or supply funds for the purchase or payment of) such Debt
or other obligation (whether arising by virtue of partnership arrangements, by agreement to
keep-well, to purchase assets, goods, securities or services, to take-or-pay, or to maintain
financial statement conditions, by “comfort letter” or other similar undertaking of support or
otherwise) or (b) entered into for the purpose of assuring in any other manner the obligee of such
Debt or other obligation of the payment thereof or to protect such

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 6

 

obligee against loss in respect thereof (in whole or in part), provided that the term Guarantee
shall not include endorsements for collection or deposit in the ordinary course of business.

“Guarantor” or “Guarantors” means one or more of the persons executing the Borrower Guaranties for
the benefit of Lender.

“Hazardous Discharge” means any releasing, spilling, leaking, pumping, pouring, emitting, emptying,
discharging, injecting, escaping, leaching, disposing or dumping of any Hazardous Substance from or
onto any real property owned, leased or operated at any time by Borrower or any Subsidiary of
Borrower or any real property owned, leased or operated by any other party.

“Hazardous Substance” means any pollutant, toxic substance, hazardous. waste, compound, element or
chemical that is defined as hazardous, toxic, noxious, dangerous or infectious pursuant to any
Applicable Environmental Law or which is otherwise regulated by any Applicable Environmental Law.

“Hedge Transaction” means any commodity, interest rate, currency or other swap, option, collar,
futures contract or other contract pursuant to which a Person hedges risks related to commodity
prices, interest rates, currency exchange rates, securities prices or financial market conditions.
Hedge Transactions expressly include Oil and Gas Hedge Transactions.

“Hydrocarbons” means oil, gas, casinghead gas, drip gasolines, natural gasoline, condensate,
distillate, and all other liquid and gaseous hydrocarbons produced or to be produced in conjunction
therewith, and all products, by-products and all other substances derived therefrom or the
processing thereof, and all other minerals and substances, including, but not limited to, sulphur,
lignite, coal, uranium, thorium, iron, geothermal steam, water, carbon dioxide, helium, and any and
all other minerals, ores, or substances of value, and the products and proceeds therefrom,
including, without limitation, all gas resulting from the insitu combustion of coal or lignite.

“Immaterial Title Deficiencies” means, with respect to specified Proved Mineral Interests, defects
or clouds on title, discrepancies in reported net revenue and working interest ownership
percentages and other Liens, defects, discrepancies and similar matters which do not, individually
or in the aggregate, affect Proved Mineral Interests with a Recognized Value greater than two
percent (2%) of the Borrowing Base in effect at any time.

“Initial Reserve Report” means an engineering and economic analysis of certain of the Existing
Mineral Interests dated July 1, 2005, by Lender’s in-house engineering staff.

“Interest Period” means the period commencing on the borrowing date applicable to such Tranche and
ending one (1), or if requested by Borrower and consented to by Lender, two (2), three (3) or six
(6) months thereafter, as Borrower may elect in the applicable Request for Borrowing; provided
that, unless expressly requested by Borrower and consented to by Lender, each Interest Period shall
be one (1) month in duration; provided further that:

FIRST AMENDED AND RESTATED
MASTER CREDIT AGREEMENT – Page 7

 

	 	(a)	 	any Interest Period which would otherwise end on a day which is not a
Eurodollar Business Day shall be extended to the next succeeding Eurodollar Business
Day unless such Eurodollar Business Day falls in another calendar month, in which case
such Interest Period shall end on the next preceding Eurodollar Business Day; and
	 
	 	(b)	 	no Interest Period shall extend past the Revolving Loan Termination Date.

“Investment” means, with respect to any Person, any loan, advance, extension of credit, capital
contribution to, investment in or purchase of the stock or other securities of, or interests in,
any other Person; provided, that “Investment” shall not include current customer and trade accounts
which are payable in accordance with customary trade terms.

“Laws” means all applicable statutes, laws, ordinances, regulations, orders, writs, injunctions, or
decrees of any state, commonwealth, nation, territory, possession, county, township, parish,
municipality or Governmental Authority.

“Lender” means Bank of America, N.A., a national banking association.

“Letter of Credit Application” has the meaning set forth in Section 2.2(b).

“Letter of Credit Expiration Date” means June 30 of the Fiscal Year immediately following the
Revolving Loan Termination Date.

“Letter of Credit Exposure” means Lender’s aggregate participation in (a) the unfunded portion of
Letters of Credit outstanding at any time, and (b) the funded but unreimbursed portion of Letters
of Credit outstanding at such time.

“Letter of Credit Fee” means, with respect to any Letter of Credit issued hereunder, a fee equal to
the greater of (a) $400, or (b) 1 1/4% of the stated amount of such Letter of Credit.

“Letters of Credit” means, collectively, letters of credit issued for the account of Borrower
pursuant to Section 2.2(b) in connection with the Revolving Commitment.

“Lien” means, with respect to any asset, any mortgage, lien, pledge, charge, security interest,
financing statement or encumbrance of any kind in respect of such asset. For the purposes of this
Agreement, Borrower and its Subsidiaries shall be deemed to own subject to a Lien any asset which
is acquired or held subject to the interest of a vendor or lessor under any conditional sale
agreement, capital lease or other title retention agreement relating to such asset.

“Loan” means an advance under the Revolving Loan.

“Loan Papers” means this Agreement, the Note, the Existing Mortgages, the Mortgages, the
Modifications, any Swap Contract entered into by and between Lender and/or any affiliate of Lender
and Borrower and/or any Subsidiary of Borrower and all other certificates, documents or

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instruments delivered in connection with any of the foregoing, as the same may be amended from time
to time.

“Margin Regulations” means Regulations T, U and X of the Board of Governors of the Federal Reserve
System, as in effect from time to time.

“Margin Stock” means “margin stock” as defined in Regulation U.

“Material Adverse Effect” means a material adverse effect on (a) the assets, liabilities, financial
condition, results of operations or prospects of Borrower or any Subsidiary of Borrower, (b) the
right or ability of Borrower or any Subsidiary of Borrower to fully, completely and timely perform
its obligations under the Loan Papers, (c) the validity or enforceability of any Loan Paper against
Borrower or any Subsidiary of Borrower (to the extent a party thereto), or (d) the validity,
perfection or priority of any material Lien intended to be created under or pursuant to any Loan
Paper to secure the Obligations.

“Material Agreement” means any material written or oral agreement, contract, commitment, or
understanding to which a Person is a party, by which such Person is directly or indirectly bound,
or to which any assets of such Person may be subject, which is not cancelable by such Person upon
notice of thirty (30) days or less without liability for further payment other than nominal
penalty.

“Maximum Lawful Rate” means the maximum rate (or, if the context so permits or requires, an amount
calculated at such rate) of interest which, at the time in question would not cause the interest
charged on the Loan at such time to exceed the maximum amount which Lender would be allowed to
contract for, charge, take, reserve, or receive under applicable Laws after taking into account, to
the extent required by applicable Laws, any and all relevant payments or charges under the Loan
Papers. To the extent the Laws of the State of Texas are applicable for purposes of determining
the “Maximum Lawful Rate,” such term shall mean the “interest rate ceiling” from time to time in
effect under Chapter 303 of the Texas Finance Code, as amended, substituted for or restated, or, if
permitted by applicable law and effective upon the giving of the notices required by such Chapter
303 (or effective upon any other date otherwise specified by applicable law), the “quarterly
ceiling” or “annualized ceiling” from time to time in effect under such Chapter 303, whichever
Lender shall elect to substitute for the “interest rate ceiling,” and vice versa, each such
substitution to have the effect provided in such Chapter 303, and Lender shall be entitled to make
such election from time to time and one or more times and, without notice to Borrower, to leave any
such substitute rate in effect for subsequent periods in accordance with such Chapter 303.

“Mineral Interests” means rights, estates, titles, and interests in and to oil and gas leases and
any oil and gas interests, royalty and overriding royalty interest, production payment, net profits
interests, oil and gas fee interests, and other rights therein, including, without limitation, any
reversionary or carried interests relating to the foregoing, together with rights, titles, and
interests created by or arising under the terms of any unitization, communization, and pooling
agreements or arrangements, and all properties, rights and interests covered thereby, whether
arising by

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contract, by order, or by operation of Laws, which now or hereafter include all or any part of the
foregoing.

“Modifications” means those modifications and amendments to deed of trust, security agreement,
financing statement and assignment of production in the form of Exhibit C attached hereto.

“Monthly Date” means the last day of each calendar month.

“Mortgages” means all mortgages, deeds of trust, security agreements, pledge agreements, amendments
to mortgages, amendments to deeds of trust, and similar documents, instruments and agreements
creating, evidencing, perfecting or otherwise establishing the Liens required by Article V hereof
as may have been heretofore or may hereafter be granted or assigned to Lender to secure payment of
the Obligations or any part thereof. The term “Mortgages” shall expressly include the Existing
Mortgages, and any amendments or modifications to the Existing Mortgages to establish the Liens
required by Article V.

“Non-Use Fee” means the fee paid to Lender as set forth in Section 2.9 hereof.

“Note” means the Revolving Note.

“Obligations” means all present and future indebtedness, obligations and liabilities, and all
renewals and extensions thereof, or any part thereof, of Borrower or any of its Subsidiaries to
Lender or any Affiliate of Lender arising pursuant to the Loan Papers or pursuant to any Hedge
Transaction entered into with Lender or any Affiliate of Lender, and all interest accrued thereon
and costs, expenses, and attorneys’ fees incurred in the enforcement or collection thereof,
regardless of whether such indebtedness, obligations and liabilities are direct, indirect, fixed,
contingent, liquidated, unliquidated, joint, several or joint and several.

“Oil and Gas Business” means the business of acquiring, exploring, or developing and operating
Mineral Interests and the production, marketing, processing and transporting of Hydrocarbons
therefrom.

“Oil and Gas Hedge Transaction” means a Hedge Transaction pursuant to which any Person hedges the
price to be received by it for future production of Hydrocarbons.

“Outstanding Revolving Credit” means, at any time, the sum of (i) the aggregate outstanding Letter
of Credit Exposure on such date, including the aggregate Letter of Credit Exposure related to
Letters of Credit to be issued on such date, plus (ii) the aggregate outstanding principal balance
of the Revolving Loan on such date.

“Permitted Encumbrances” means with respect to any asset:

     (a) Liens (if any) securing the Obligations;

     (b) Minor defects in title which do not secure the payment of money and otherwise have no
material adverse effect on the value or the operation of the subject property, and for the

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purposes of this Agreement, a minor defect in title shall include, but not be limited to,
easements, rights-of-way, servitudes, permits, surface leases and other similar rights in respect
of surface operations, and easements for pipelines, streets, alleys, highways, telephone lines,
power lines, railways and other easements and rights-of-way, on, over or in respect of any of the
properties of Borrower or any of its Subsidiaries that are customarily granted in the oil and gas
industry;

     (c) Inchoate statutory or operators’ liens securing obligations for labor, services, materials
and supplies furnished to Mineral Interests in the ordinary course of business which are not
delinquent (except to the extent permitted by Section 8.6);

     (d) Mechanic’s, materialmen’s, warehouseman’s, journeyman’s and carrier’s liens and other
similar liens arising by operation of Law in the ordinary course of business which are not
delinquent (except to the extent permitted by Section 8.6);

     (e) Liens for Taxes or assessments not yet due or not yet delinquent, or, if delinquent, that
are being contested in good faith in the normal course of business by appropriate action, as
permitted by Section 8.6;

     (f) Lease burdens payable to third parties which are deducted in the calculation of discounted
present value in the Reserve Report including, without limitation, any royalty, overriding royalty,
net profits interest, carried interests or reversionary working interest;

     (g) Liens and burdens existing on the Closing Date which encumber or otherwise burden
Borrower’s assets and which arise or are otherwise created in the ordinary course of Borrower’s
business;

     (h) Liens on drilling rigs and related oil field service equipment in favor of Merrill Lynch
Capital Markets securing indebtedness from Lariat, as existing as of the Closing Date; and

     (i) Liens for purchase money indebtedness permitted under Section 9.1 hereof.

“Person” means an individual, a corporation, a partnership, an association, a trust or any other
entity or organization, including a Government Authority.

“Proved Mineral Interests” means, collectively, Proved Producing Mineral Interests, Proved
Nonproducing Mineral Interests, and Proved Undeveloped Mineral Interests.

“Proved Nonproducing Mineral Interests” means all Mineral Interests which constitute proved
developed nonproducing reserves.

“Proved Producing Mineral Interests” means all Mineral Interests which constitute proved developed
producing reserves.

“Proved Undeveloped Mineral Interests” means all Mineral Interests which constitute proved
undeveloped reserves.

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“Recognized Value” means, with respect to Mineral Interests, the portion of the Borrowing Base
which Lender attributes to such Mineral Interests for purposes of the most recent Redetermination
of the Borrowing Base pursuant to Article IV hereof (or for purposes of determining the initial
Borrowing Base in the event no such Redetermination has occurred), based upon the discounted
present value of the estimated net cash flow to be realized from the production of Hydrocarbons
from such Mineral Interests.

“Redetermination” means determination of the Borrowing Base pursuant to Section 4.2.

“Regulation U” means Regulation U of the Board of Governors of the Federal Reserve System, 12
C.F.R. Part 221, as in effect from time to time.

“Request for Borrowing” has the meaning set forth in Section 2.2(c).

“Request for Letter of Credit” has the meaning set forth in Section 2.2(d).

“Required Reserve Value” means Borrowing Base Properties that have a Recognized Value of not less
than eighty percent (80%) of the Recognized Value of all Borrowing Base Properties held by
Borrower.

“Reserve Report” means an unsuperseded engineering analysis of the Evaluated Mineral Interests
owned by Borrower or any of its Subsidiaries, in form and substance reasonably acceptable to
Lender, prepared by independent petroleum engineers for the Reserve Reports prepared as of December
31st and by Borrower’s in-house engineering staff, for Reserve Reports prepared as of
June 30th, in accordance with customary and prudent practices in the petroleum
engineering industry. Each Reserve Report required to be delivered pursuant to Section 4.1 shall
be in form and scope acceptable to Lender. For purposes of Section 4.1, and until superseded, the
Initial Reserve Report shall be considered a Reserve Report.

“Revolving Commitment” means the commitment of Lender to lend to Borrower pursuant to Section 2.2
hereof the aggregate amount of $200,000,000.

“Revolving Credit Period” means the period commencing on the date hereof and ending on the
Revolving Loan Termination Date.

“Revolving Loan” means the revolving loan hereunder not to exceed the Revolving Commitment.

“Revolving Loan Termination Date” means, initially January 12, 2009.

“Rollover Notice” has the meaning given such term in Section 2.4(b).

“Schedule” means a “schedule” attached to this Agreement and incorporated herein by reference,
unless specifically indicated otherwise.

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MASTER CREDIT AGREEMENT – Page 12

 

“Section” refers to a “section” or “subsection” of this Agreement unless specifically indicated
otherwise.

“Subsidiary” means, for any Person, any corporation or other entity of which securities or other
ownership interests having ordinary voting power to elect a majority of the board of directors or
other persons performing similar functions (including that of a general partner) are at the time
directly or indirectly owned, collectively, by such Person and any Subsidiaries of such Person.

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

“Taxes” means all taxes, assessments, filing or other fees, levies, imposts, duties, deductions,
withholdings, stamp taxes, capital transaction taxes, foreign exchange taxes or other charges, or
other charges of any nature whatsoever, from time to time or at any time imposed by Law or any
Governmental Authority. “Tax” means any one of the foregoing.

“Tranche” means a Base Rate Tranche or a Eurodollar Tranche, and “Tranches” means Base Rate
Tranches or Eurodollar Tranches or any combination thereof.

“Unused Fee Percentage” means the percentage set forth in the definition of Applicable Margin.

SECTION 1.2. Accounting Terms and Determinations.

Unless otherwise specified herein, all accounting terms used herein shall be interpreted, all
accounting determinations hereunder shall be made, and all financial statements required to be
delivered hereunder shall be expressed in U.S. Dollars and the annual financial statements to be
delivered hereunder shall be prepared in accordance with the income tax method of accounting,
applied on a basis consistent with the most recent audited consolidated financial statements of
Borrower and its Consolidated Subsidiaries delivered to Lender except for changes concurred in by
Borrower’s independent certified public accountants and which are disclosed to Lender on the next
date on which financial statements are required to be delivered to Lender pursuant to Sections 8.1
(a) or (b); provided that, unless Lender shall otherwise agree in writing, no such change shall
modify or affect the manner in which compliance with the covenants contained in

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Article X are computed such that all such computations shall be conducted utilizing financial
information presented consistently with prior periods.

SECTION 1.3. Petroleum Terms.

As used herein, the terms “proved reserves,” “proved developed reserves,” “proved developed
producing reserves,” “proved developed nonproducing reserves,” and “proved undeveloped reserves”
have the meaning given such terms from time to time and at the time in question by the Society of
Petroleum Engineers of the American Institute of Mining Engineers.

ARTICLE II.  — THE CREDIT

SECTION 2.1. Renewal and Extension.

     (a) The obligations and commitments under the Existing Credit Agreement are renewed and
extended, but not extinguished, by the obligations under this Agreement. If there is any conflict
between the terms of the Existing Credit Agreement and this Agreement, the terms of this Agreement
shall control.

     (b) The proceeds of the Revolving Loan shall be used to (i) refinance the existing
indebtedness under the Existing Credit Agreement; (ii) to finance capital expenditures; (iii) to
pay fees and expenses incurred in connection with the Loan; and (iv) to provide for working capital
and other general corporate purposes of the Borrower.

     (c) The outstanding indebtedness under the Existing Credit Agreement is $0.00 as of the date
hereof.

SECTION 2.2. Revolving Commitment.

     (a) Lender agrees, subject to the terms and conditions set forth herein, to lend to Borrower
from time to time during the Revolving Credit Period amounts not to exceed in the aggregate at any
one time outstanding, the lesser of (i) the amount of the Revolving Commitment reduced by an amount
equal to the Letter of Credit Exposure, or (ii) the Borrowing Base. Each borrowing under the
Revolving Commitment shall be in the aggregate principal amount of $100,000 or any larger integral
multiple of $100,000. Subject to the foregoing limitations and the other provisions of this
Agreement, Borrower may borrow under this Section 2.2(a), repay amounts borrowed under this Section
2.2(a) and request new borrowings under this Section 2.2(a).

     (b) Lender will issue Letters of Credit, from time to time during the Revolving Credit Period
upon request by Borrower, for the account of Borrower, so long as (i) the sum of (A) the total
Letter of Credit Exposure then existing, and (B) the amount of the requested Letter of Credit, does
not exceed $20,000,000, and (ii) Borrower would be entitled to a borrowing under Section 2.2(a) in
the amount of the requested Letter of Credit. Not less than three (3) Domestic Business Days prior
to the requested date of issuance of any such Letter of Credit, Borrower shall execute and deliver
to Lender, Lender’s customary letter of credit application and

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MASTER CREDIT AGREEMENT – Page 14

 

agreement (“Letter of Credit Application”). Each Letter of Credit shall be in form and
substance acceptable to Lender. No Letter of Credit shall have an expiration date later than the
Letter of Credit Expiration Date. In connection with the issuance of Letters of Credit under this
Section 2.2(b), Borrower shall pay to Lender in respect of such Letters of Credit at the time of
issuance of each Letter of Credit, the applicable Letter of Credit Fee. Notwithstanding anything
to the contrary contained herein, Borrower shall also pay to Lender in connection with the issuance
of any Letter of Credit, Lender’s usual and customary fees for the issuing and processing of
Letters of Credit.

     As between Borrower, on the one hand, and Lender, on the other hand, Borrower assumes all
risks of the acts and omissions of, or misuse of Letters of Credit by, the beneficiary of such
Letters of Credit. In furtherance and not in limitation of the foregoing, Lender shall not be
responsible for:

	 	(i)	 	the form, validity, sufficiency, accuracy, genuineness or legal effect of any
document submitted by any Person in connection with the application for and issuance of
and presentation of drafts with respect to any Letter of Credit, even if it should
prove to be in any or all respects invalid, insufficient, inaccurate, fraudulent or
forged;
	 
	 	(ii)	 	the validity or sufficiency of any instrument transferring or assigning or
purporting to transfer or assign the Letter of Credit or the rights or benefits
thereunder or proceeds thereof, in whole or in part, which may prove to be invalid or
ineffective for any reason;
	 
	 	(iii)	 	the failure of the beneficiary of the Letter of Credit to comply duly with
conditions required in order to draw upon such Letter of Credit;
	 
	 	(iv)	 	errors, omissions, interruptions or delays in transmission or delivery of any
messages, by mail, cable, telegraph, telex or otherwise, whether or not they be in
cipher;
	 
	 	(v)	 	errors in interpretation of technical terms;
	 
	 	(vi)	 	any loss or delay in the transmission or otherwise of any document required in
order to make a drawing under any Letter of Credit or of the proceeds thereof,
	 
	 	(vii)	 	the misapplication by the beneficiary of the Letter of Credit of the proceeds
of any drawing under such Letter of Credit; or
	 
	 	(viii)	 	any consequences arising from causes beyond the control of Lender.

     Notwithstanding the foregoing, it will be the obligation of Lender to Borrower to confirm that
any documents required to be delivered with respect to any Letter of Credit appear to have been
delivered and that they appear to substantially comply on their face with the requirements of such
Letter of Credit.

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     (c) In order to request any borrowing under the Revolving Commitment, Borrower shall hand
deliver, telex or telecopy to Lender a duly completed Request for Borrowing (herein so called) (i)
prior to 11:00 a.m. (Houston, Texas time) on the date specified for a proposed borrowing subject to
a Base Rate Tranche, and (ii) prior to 12:00 noon (Houston, Texas time) at least three (3)
Eurodollar Business Days before the date of a proposed borrowing subject to a Eurodollar Tranche.
Each such Request for Borrowing shall be substantially in the form of Exhibit G hereto, and shall
specify:

	 	(i)	 	whether such borrowing is to be the subject of a Base Rate Tranche or a
Eurodollar Tranche;
	 
	 	(ii)	 	the borrowing date of such borrowing, which shall be a Domestic Business Day in
the case of a Base Rate Tranche, or a Eurodollar Business Day in the case of a
Eurodollar Tranche;
	 
	 	(iii)	 	the aggregate amount of such borrowing; and
	 
	 	(iv)	 	in the case of a borrowing the subject of a Eurodollar Tranche, the duration of
the Interest Period applicable thereto, subject to the provisions of the definition of
Interest Period.

     Not later than 12:00 noon (Houston, Texas time) on the date of each borrowing, Lender shall
make available the proceeds of such borrowing, in Federal or other funds immediately available at
Lender’s office in Houston, Texas, unless Lender determines that any applicable condition precedent
to the advance of the proceeds of such borrowing has not been satisfied.

     (d) In order to request any Letter of Credit hereunder, Borrower shall hand deliver, telex or
telecopy to Lender a duly completed Request for Letter of Credit (herein so called) prior to 12:00
noon (Houston, Texas time) at least three (3) Domestic Business Days before the date specified for
issuance of such Letter of Credit. Each Request for Letter of Credit shall be substantially in the
form of Exhibit H hereto, shall be accompanied by Lender’s duly completed and executed Letter of
Credit Application and shall specify:

	 	(i)	 	the requested date for issuance of such Letter of Credit;
	 
	 	(ii)	 	the terms of such requested Letter of Credit, including the name and address of
the beneficiary, the stated amount, the expiration date and the conditions under which
drafts under such Letter of Credit are to be available; and
	 
	 	(iii)	 	the purpose of such Letter of Credit.

     Upon receipt of a Request for Letter of Credit by Lender, such Request for Letter of Credit
shall not thereafter be revocable by Borrower.

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     No later than 12:00 noon (Houston, Texas time) on the date each Letter of Credit is requested,
unless Lender determines that any applicable condition precedent for the issuance of such Letter of
Credit has not been satisfied, Lender will issue and deliver such Letter of Credit pursuant to the
instructions of Borrower.

SECTION 2.3. Note.

The Revolving Loan shall be evidenced by the Revolving Note in the form as attached hereto as
Exhibit A.

SECTION 2.4. Interest Rates; Payments.

     (a) Subject to Section 2.4(c), (i) the principal amount of the Revolving Loan outstanding from
day to day which is the subject of a (A) Base Rate Tranche shall bear interest at a rate per annum
equal to the applicable Base Rate, plus the Applicable Margin (B) Eurodollar Tranche shall bear
interest for the Interest Period applicable thereto at a rate per annum equal to the Eurodollar
Rate plus the Applicable Margin; provided that in no event shall the rate charged hereunder or
under the Note exceed the Maximum Lawful Rate. Interest on the Loan shall be payable on each
Monthly Date.

     (b) So long as no Default or Event of Default shall be continuing, subject to the provisions
of this Section 2.4, Borrower shall have the option of having all or any portion of the principal
outstanding under the Loan be the subject of a Base Rate Tranche or one (1) or more Eurodollar
Tranches, which shall bear interest at rates based upon the Base Rate and the Eurodollar Rate,
respectively, and subject to the provisions of Section 2.4(a) above (each such option is referred
to herein as an “Interest Option”). Each change in an Interest Option made pursuant to this
Section 2.4(b) shall be deemed both a payment in full of the portion of the principal of the Loan
which was the subject of the Base Rate Tranche or Eurodollar Tranche from which such change was
made and a borrowing (notwithstanding that the unpaid principal amount of the Loan is not changed
thereby) of the portion of the principal of the Loan which is the subject of the Base Rate Tranche
or Eurodollar Tranche into which such change was made. Prior to the termination of each Interest
Period with respect to each Eurodollar Tranche, Borrower shall give written notice (a “Rollover
Notice”) in the form of Exhibit F attached hereto to Lender of the Interest Option which shall be
applicable to such portion of the principal of the applicable Loan upon the expiration of such
Interest Period. Such Rollover Notice shall be given to Lender at least one (1) Domestic Business
Day, in the case of a Base Rate Tranche selection and at least three (3) Eurodollar Business Days,
in the case of a Eurodollar Tranche selection, prior to the termination of the Interest Period then
expiring. Each Rollover Notice shall be irrevocable and effective upon notification thereof to
Lender. If the required Rollover Notice shall not have been timely received by Lender, Borrower
shall be deemed to have elected that the principal of the applicable Loan subject to the Interest
Period then expiring be the subject of a Base Rate Tranche upon the expiration of such Interest
Period and Borrower will be deemed to have given Lender notice of such election. Subject to the
limitations set forth in this Section 2.4(b) on the minimum amount of Eurodollar Tranches, Borrower
shall have the right to convert all or part of the Base Rate Tranche to a Eurodollar Tranche by
giving Lender a Rollover Notice of such election at least three (3) Eurodollar Business Days prior
to the date on which Borrower

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elects to make such conversion (a “Conversion Date”). The Conversion Date selected by Borrower
shall be a Eurodollar Business Day. Notwithstanding anything in this Section 2.4 to the contrary,
no portion of the principal of the Loan which is the subject of a Base Rate Tranche may be
converted to a Eurodollar Tranche and no Eurodollar Tranche may be continued as such when any
Default or Event of Default has occurred and is continuing, but each such Tranche shall be
automatically converted to a Base Rate Tranche on the last day of each applicable Interest Period.
In no event shall more than five (5) Interest Options be in effect with respect to the Loans at any
time.

     (c) Notwithstanding anything to the contrary set forth in Section 2.4(a) above, all overdue
principal and, to the extent permitted by Law, overdue interest, shall bear interest from the date
due, payable on demand, for each day until paid at a rate per annum equal to the Maximum Lawful
Rate.

     (d) Lender shall determine each interest rate applicable to the Revolving Loan in accordance
with the terms hereof and the Note. Lender shall (as applicable) promptly notify Borrower of each
rate of interest so determined, and its determination thereof shall be conclusive in the absence of
manifest error.

     (e) Notwithstanding the foregoing, if at any time the rate of interest calculated with
reference to the Base Rate or the Eurodollar Rate hereunder (the “contract rate”) is limited to the
Maximum Lawful Rate, any subsequent reductions in the contract rate shall not reduce the rate of
interest on the Revolving Loan below the Maximum Lawful Rate until the total amount of interest
accrued equals the amount of interest which would have accrued if the contract rate had at all
times been in effect. In the event that at maturity (stated or by acceleration), or at final
payment of the Note, the total amount of interest paid or accrued on such Note is less than the
amount of interest which would have accrued if the contract rate had at all times been in effect
with respect thereto, then at such time, to the extent permitted by law, Borrower shall pay to the
holder of such Note an amount equal to the difference between (i) the lesser of the amount of
interest which would have accrued if the contract rate had at all times been in effect and the
amount of interest which would have accrued if the Maximum Lawful Rate had at all times been in
effect, and (ii) the amount of interest actually paid on such Note.

     (f) Interest payable hereunder shall be computed based on the number of actual days elapsed
assuming that each calendar year consisted of 360 days.

SECTION 2.5. Mandatory Prepayments.

     (a) Upon an asset disposition by the Borrower or its Subsidiaries, the Borrower shall make a
mandatory prepayment on the Revolving Loan in an amount sufficient to eliminate any Borrowing Base
Deficiency resulting from such disposition; provided 100% of the net cash proceeds of such
disposition will be paid on the Revolving Loan if such asset disposition occurs during the
continuance of a Default or an Event of Default.

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     (b) Should a Borrowing Base Deficiency exist, Borrower shall take action based upon the
options set forth in Section 4.3.

SECTION 2.6. Voluntary Prepayments.

Borrower may, subject to Article III and the other provisions of this Agreement and subject further
to any of the terms, provisions and conditions set forth in any Swap Contract entered into by and
between Lender and/or any affiliate of Lender and Borrower and/or any Subsidiary of Borrower, upon
three (3) Domestic Business Days advance notice to Lender, prepay the principal of the Loan in
whole or in part. Prepayments may be made without penalty except for breakage fees and other
funding losses incurred by Lender that will be compensated by Borrower as set in Section 3.3
hereof. Any partial prepayment shall be in a minimum amount of $100,000 and shall be in an integral
multiple of $1,000, and may be made only on the last day of the Interest Period applicable thereto.

SECTION 2.7. Final Maturity.

The entire outstanding principal balance of the Revolving Loan, all interest accrued thereon, all
accrued but unpaid fees with respect thereto and all other Obligations with respect thereto shall
be due and payable in full on the Revolving Loan Termination Date.

SECTION 2.8. Application of Payments.

Each repayment pursuant to Sections 2.5. 2.6 and 2.7 shall be made together with accrued interest
on the amount repaid to the date of payment, and shall be applied in accordance with Article III
and the other provisions of this Agreement and the applicable Loan Papers.

SECTION 2.9. Non-Use Fee.

On the Revolving Loan Termination Date and on the last day of each Fiscal Quarter prior to the
Revolving Loan Termination Date and in the event the Revolving Commitment is terminated prior to
the Revolving Loan Termination Date, on the date of such termination, Borrower shall pay to Lender
a Non-Use Fee equal to the Unused Fee Percentage for the applicable period (computed on the basis
of actual days elapsed and as of each calendar year consisted of 360 days) of the average daily
Availability for the Fiscal Quarter (or portion thereof) ending on such date.

SECTION 2.10. Other Fees.

Borrower shall pay to Lender and its Affiliates such fees and amounts as Borrower shall be required
to pay to Lender and its Affiliates from time to time pursuant to any separate agreement between
Borrower and Lender or such Affiliates.

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ARTICLE III.  — GENERAL PROVISIONS

SECTION 3.1. Time and Place of Payment.

All principal, interest and other amounts to be paid by Borrower under this-Agreement and the other
Loan Papers shall be paid to Lender in U.S. dollars in Federal or other funds immediately available
in Houston, Texas, at Lender’s address set forth on the signature pages hereof, without setoff,
deduction or counterclaim. All such payments shall be made not later than 12:00 noon (Houston,
Texas time) on the date due. Whenever any payment of principal of, or interest on, the Loan or fees
shall be due on a day which is not a Eurodollar Business Day, the date for payment thereof shall be
extended to the next succeeding Eurodollar Business Day (subject to the definition of Interest
Period). If the date for any payment of principal is extended by operation of Law or otherwise,
interest thereon shall be payable for such extended time. Borrower hereby authorizes Lender to
charge from time to time against Borrower’s accounts with Lender, and debit therefrom, any amounts
then due. This authorization shall not affect the obligation of Borrower to pay such amounts when
due, without notice, if there are insufficient funds in such accounts to make such payments in full
on the due date thereof, or if Lender fails to debit the accounts.

SECTION 3.2. Application of Payments.

All amounts collected or received by Lender shall be applied to the Obligations in such order as
Lender shall elect in its sole discretion.

SECTION 3.3. Funding Losses.

Borrower shall compensate Lender, upon its written request, for all losses, expenses and
liabilities which Lender may sustain (a) if for any reason (other than a default by Lender) a
borrowing the subject of a Eurodollar Tranche does not occur on the date specified therefor in a
Request for Borrowing (whether or not withdrawn), including, but not limited to, a failure by
Borrower to fulfill on the date of any borrowing the subject of a Eurodollar Tranche the conditions
set forth in Article VI, (b) if any payment, prepayment or conversion of any principal amount
outstanding under the Loan the subject of a Eurodollar Tranche required or permitted by any other
provision of this Agreement or otherwise is made or deemed made on a date which is not the last day
of the Interest Period applicable thereto, or (c) if Borrower defaults in its obligation to repay
principal on the Loan the subject of a Eurodollar Tranche, or interest accrued thereon, as and when
due and payable (at the due date thereof, whether at scheduled maturity, by acceleration, or to
convert or continue any principal amount outstanding under the Loan the subject of a Eurodollar
Tranche hereunder on the date specified therefore in a Rollover Notice (whether or not withdrawn)
irrevocable notice of prepayment or otherwise).

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ARTICLE IV.  — BORROWING BASE

SECTION 4.1. Reserve Reports; Proposed Borrowing Base.

As soon as available and in any event by April 1 and October 1 of each year commencing April 1,
2006, Borrower shall deliver to Lender a Reserve Report covering the Borrowing Base Properties,
prepared as of the immediately preceding December 31st and June 30th, respectively.

SECTION 4.2. Redeterminations of the Borrowing Base and Monthly Reduction; Procedures and Standards.

Based in part on the Reserve Reports delivered to Lender pursuant to Section 4.1. Lender shall
redetermine the Borrowing Base as promptly after receipt of such Reserve Reports as reasonably
possible based on the engineering and other information available to Lender. Lender reserves the
right to have up to two additional redeterminations of the Borrowing Base at any time for the first
twelve months following the Closing Date and thereafter one additional redetermination per calendar
year. Borrower may have up to two unscheduled redeterminations per calendar year. The amount of
the Borrowing Base established in connection with each Redetermination shall be made by Lender in
its sole discretion. Without limiting such discretion, Borrower acknowledges and agrees that Lender
(i) may make such assumptions regarding appropriate existing and projected pricing for Hydrocarbons
as it deems appropriate in its sole discretion, (ii) may make such assumptions regarding projected
rates and quantities of future production of Hydrocarbons from the Mineral Interests owned by
Borrower and its Subsidiaries as it deems appropriate in its sole discretion, (iii) may consider
the projected cash requirements of Borrower and its Subsidiaries, (iv) is not required to consider
any asset other than Proved Mineral Interests owned by Borrower and its Subsidiaries, and (v) may
make such other assumptions, considerations and exclusions as it deems appropriate in the exercise
of its sole discretion. It is further acknowledged and agreed that Lender may consider such other
credit factors as it deems appropriate in the exercise of its sole discretion. Promptly following
any Redetermination of the Borrowing Base, Lender shall notify Borrower of the amount of the
Borrowing Base as redetermined, which Borrowing Base shall be effective as of the date specified in
such notice, and shall remain in effect for all purposes of this Agreement until the next
Redetermination.

SECTION 4.3. Borrowing Base Deficiency.

If a Borrowing Base Deficiency exists at any time, Borrower shall, within ten (10) days following
the date on which such Borrowing Base Deficiency is determined to exist, provide written notice
(the “Election Notice”) to Lender stating the action which Borrower proposes to take to remedy such
Borrowing Base Deficiency, and Borrower shall thereafter, at its option, either (a) within thirty
(30) days following the delivery of such Election Notice, make a prepayment of principal on the
Revolving Loan in an amount sufficient to eliminate such Borrowing Base Deficiency, (b) pay the
Borrowing Base Deficiency in monthly installments equal to 1/6 of such deficiency per month, with
the first payment due within thirty (30) days of the election, or (c) within thirty (30) days
following the delivery of such Election Notice, submit additional Mineral Interests to Lender for
evaluation as Borrowing Base Properties which Lender, in its sole discretion, determines have a
value sufficient to increase the Borrowing Base

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MASTER CREDIT AGREEMENT – Page 21

 

by at least the amount of the Borrowing Base Deficiency. In the event option (b) above is chosen,
Borrower shall devote sufficient amount of its monthly cash flow from oil and gas properties to
meet such payments.

SECTION 4.4. Initial Borrowing Base.

The Borrowing Base shall be $72,000,000 for the period commencing on the Closing Date and ending on
the effective date of the first Redetermination after the Closing Date.

ARTICLE V.  — COLLATERAL

SECTION 5.1. Security.

     (a) The Obligations shall be secured by first and prior Liens (subject only to Permitted
Encumbrances) in favor of Lender covering and encumbering the Evaluated Mineral Interests owned by
Borrower specified by Lender which shall in all events include the Borrowing Base Properties. To
the extent that the Borrowing Base Properties are not covered by the Existing Mortgages, Borrower
or its Subsidiaries shall from time to time execute additional Mortgages covering such properties,
upon Lender’s request. Contemporaneous with the execution and delivery of this Agreement, Borrower
shall execute and deliver Modifications of the Existing Mortgages in the form of Exhibit C. At all
times, the Obligations shall be secured by a valid and perfected first priority lien on oil and gas
properties having a value of at least the Required Reserve Value.

     (b) As of the Closing Date, (i) the Existing Mortgages on the Riata ranch land (surface
estate) and the Riata farm land, and (ii) the Guarantees of N. Malone Mitchell 3rd, Amy
Mitchell and Alsate Aircraft Holdings, L.P., shall be released.

     (c) On the Closing Date and on or before each Redetermination after the Closing Date and at
such other times as Lender shall request, Borrower or its Subsidiaries shall deliver Mortgages to
Lender in form and substance acceptable to Lender and duly executed by Borrower or its
Subsidiaries, together with such other assignments, conveyances, amendments, agreements and other
writings, including, without limitation, UCC-1 financing statements (collectively, the “Collateral
Documents”) (each duly authorized and executed) as Lender shall deem necessary or appropriate to
grant, evidence and perfect the Liens required by Section 5.1 (a) with respect to Mineral Interests
then held by Borrower or its Subsidiaries which are not the subject of existing first and prior,
perfected Liens securing the Obligations as required by Section 5.1 (a).

     (d) All security granted shall ratably secure the Revolving Loan and any Swap Contract.

     (e) Borrower authorizes Lender to execute and deliver any financing statements deemed
necessary by Lender to perfect Lender’s security interest, all without the signature of the grantor
of such security interest.

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MASTER CREDIT AGREEMENT – Page 22

 

SECTION 5.2. Title Opinions.

At any time during the term of the Revolving Loan, Lender may require Borrower to deliver to Lender
such opinions of counsel (including, if so requested, title opinions, and in each case addressed to
Lender) and other evidence of title as Lender shall deem necessary or appropriate to verify (a)
Borrower’s title to the Required Reserve Value of the Borrowing Base Properties which are subject
to such Mortgages, and (b) the validity, perfection and priority of the Liens created by such
Mortgages; provided that, Lender shall not request additional opinions of counsel regarding the
properties covered by the Existing Mortgages unless there is a material deficiency in title opinion
coverage related to the Required Reserve Value. Any opinions requested by Lender shall be
delivered within sixty days of request by Lender, unless Lender agrees to a longer period of time.
Such opinions shall be in form and substance as may be satisfactory to Lender in its sole
discretion.

ARTICLE VI. — CONDITIONS PRECEDENT

SECTION 6.1. Conditions to each Revolving Loan Borrowing and each Letter of Credit.

The obligation of Lender to make advances under the Revolving Commitment and to issue Letters of
Credit on the date any Letter of Credit is to be issued are further subject to the satisfaction of
the following conditions:

     (a) timely receipt by Lender of a Request for Borrowing or Request for Letter of Credit (as
applicable);

     (b) immediately before and after giving effect to such borrowing or issuance of such Letter of
Credit, no Default or Event of Default shall have occurred and be continuing and neither such
borrowing nor the issuance of such Letter of Credit (as applicable) shall cause a Default or Event
of Default;

     (c) the representations and warranties of Borrower contained in this Agreement and the other
Loan Papers shall be true and correct in all material respects on and as of the date of such
borrowing or the issuance of such Letter of Credit (as applicable), except to the extent such
representations and warranties are expressly stated as of a certain date, in which case such
representations and warranties shall be true and correct in all material respects as of such date;
and

     (d) following the issuance of any Letter of Credit, the aggregate Letter of Credit Exposure of
Lender shall not exceed $20,000,000.

Each borrowing and the issuance of each Letter of Credit hereunder shall constitute a
representation and warranty by Borrower that on the date of such borrowing or issuance of such
Letter of Credit (as applicable) the statements contained in subclauses (b), (c) and (d) above are
true.

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MASTER CREDIT AGREEMENT – Page 23

 

SECTION 6.2. Materiality of Conditions.

Each condition precedent herein is material to the transactions contemplated herein, and time is of
the essence in respect of each thereof.

ARTICLE VII. — REPRESENTATIONS AND WARRANTIES

Borrower represents and warrants to Lender that each of the following statements is true and
correct on the date hereof:

SECTION 7.1. Corporate Existence and Power.

Borrower and each Guarantor (excluding individual Guarantors) (a) is a corporation, limited
partnership or limited liability company duly incorporated or organized, validly existing and in
good standing under the Laws of its jurisdiction of incorporation or organization, (b) has all
corporate, partnership or limited liability company powers and all material governmental licenses,
authorizations, consents and approvals required to carry on its businesses as now conducted and as
proposed to be conducted, and (c) is duly qualified to transact business in each jurisdiction where
a failure to be so qualified could have a Material Adverse Effect.

SECTION 7.2. Authorization; No Contravention.

The execution, delivery and performance by Borrower and the Guarantors of this Agreement, the Note
and the other Loan Papers to be executed in connection herewith (to the extent each is a party
thereto) are within Borrower’s and such Guarantor’s corporate, partnership or limited liability
company powers, when executed will be duly authorized by all necessary corporate, partnership or
limited liability company action, require no action by or in respect of, or filing with, any
Governmental Authority and do not contravene, or constitute a default under, any provision of
applicable Law (including, without limitation, the Margin Regulations) or of the articles or
certificate of incorporation, bylaws, partnership agreement, regulations or other charter documents
(as applicable) of Borrower or any Guarantor or of any agreement, judgment, injunction, order,
decree or other instrument binding upon Borrower or any Guarantor or result in the creation or
imposition of any Lien on any asset of Borrower or any Guarantor.

SECTION 7.3. Binding Effect.

This Agreement constitutes a valid and binding agreement of Borrower and the Guarantors; the Note
and the other Loan Papers to which Borrower and the Guarantors are a party, constitute, or when
executed and delivered in accordance with this Agreement, will constitute valid and binding
obligations of Borrower and such Guarantors executing the same; and each such Loan Paper is, or
when executed and delivered, will be, enforceable against Borrower and the Guarantors (to the
extent a party thereto) except as (i) the enforceability thereof may be limited by bankruptcy,
insolvency or similar laws affecting creditors rights generally, and (ii) the availability of
equitable remedies may be limited by equitable principles of general applicability.

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MASTER CREDIT AGREEMENT – Page 24

 

SECTION 7.4. Financial Information.

     (a) The most recent annual audited consolidated balance sheet of Borrower and the related
audited consolidated statements of operations and cash flows for the Fiscal Year then ended, copies
of which have been delivered to Lender, fairly present, in conformity with GAAP, the consolidated
financial position of Borrower as of the end of such Fiscal Year and its consolidated results of
operations and cash flows for such Fiscal Year.

     (b) The most recent quarterly balance sheet of Borrower delivered to Lender, and the related
unaudited statements of operations for the portion of Borrower’s Fiscal Year then ended, fairly
present the financial position of Borrower as of such date for such portion of Borrower’s Fiscal
Year.

     (c) Except as disclosed in writing to Lender prior to the execution and delivery of this
Agreement, since the date of RIATA’s most recent annual and quarterly balance sheet and statements
of operations and cash flow delivered to Lender, no event has occurred or condition exists which
has had or could reasonably be expected to have a Material Adverse Effect.

SECTION 7.5. Litigation.

Except for matters disclosed on Schedule 7.5 attached hereto, there is no action, suit or
proceeding pending against, or to the knowledge of Borrower, threatened against or affecting
Borrower or any Guarantor before any Governmental Authority in which there is a reasonable
possibility of an adverse decision which could have a Material Adverse Effect or which could in any
manner draw into question the validity of the Loan Papers. For the purposes hereof, only
litigation with claims in excess of $250,000 shall be deemed to have a Material Adverse Effect.

SECTION 7.6. Taxes and Filing of Tax Returns.

Borrower and the Guarantors have filed all tax returns required to have been filed and have paid
all Taxes shown to be due and payable on such returns, including interest and penalties, and all
other Taxes which are payable by such party, to the extent the same have become due and payable,
other than Taxes with respect to which a failure to pay would not have a Material Adverse Effect.
Borrower and Guarantors do not know of any proposed material Tax assessment against Borrower or any
Guarantor and all Tax liabilities of Borrower and the Guarantors are adequately provided for.

SECTION 7.7. Ownership of Properties Generally.

Borrower and its Subsidiaries have good and valid fee simple or leasehold title to all material
properties and assets purported to be owned by it, including, without limitation, all assets
reflected in the balance sheets referred to in Section 7.4 (a) and (b) and all assets which are
used by Borrower and such Subsidiaries in the operation of their business, and none of such
properties or assets is subject to any Lien other than Permitted Encumbrances.

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MASTER CREDIT AGREEMENT – Page 25

 

SECTION 7.8. Evaluated Mineral Interests.

Borrower has good and defensible title to all Borrowing Base Properties, free and clear of all
Liens except Permitted Encumbrances and Immaterial Title Deficiencies. With the exception of
Immaterial Title Deficiencies, all such Evaluated Mineral Interests are valid, subsisting, and in
full force and effect, and all rentals, royalties, and other amounts due and payable in respect
thereof have been duly paid. Without regard to any consent or non-consent provisions of any joint
operating agreement covering any of Borrower’s Proved Mineral Interests, and with the exception of
Immaterial Title Deficiencies, Borrower’s share of (a) the costs for each Borrowing Base Property
is not greater than the decimal fraction set forth in the Reserve Report, before and after payout,
as the case may be, and described therein by the respective designations “working interests,” “WI,”
“gross working interest,” “GWI,” or similar terms, and (b) production from, allocated to, or
attributed to each such Borrowing Base Property is not less than the decimal fraction set forth in
the Reserve Report, before and after payout, as the case may be, and described therein by the
designations “net revenue interest,” “NRI,” or similar terms. Except in the case of wells which, in
the aggregate, represent less than two percent (2%) of the production from the Borrowing Base
Properties described in the Reserve Report, each well drilled in respect of each Borrowing Base
Property described in the Reserve Report (y) is capable of, and is presently, producing
Hydrocarbons in commercially profitable quantities, and Borrower is currently receiving payments
for its share of production, with no funds in respect of any thereof being presently held in
suspense, other than any such funds being held in suspense pending delivery of appropriate division
orders, and (z) has been drilled, bottomed, completed, and operated in compliance with all
applicable Laws and no such well which is currently producing hydrocarbons is subject to any
penalty in production by reason of such well having produced in excess of its allowable production.
The schedule of mineral interests attached hereto as Exhibit D is true and correct in all material
respects. There are no unrecorded assignments or conveyances affecting the Borrowing Base
Properties or Borrower’s interest therein.

SECTION 7.9. Licenses, Permits, Etc.

Borrower and each Subsidiary of Borrower possess such valid franchises, certificates of convenience
and necessity, operating rights, licenses, permits, consents, authorizations, exemptions and orders
of Governmental Authorities, as are necessary to carry on its business as now conducted and as
proposed to be conducted, except to the extent a failure to obtain any such item would not have a
Material Adverse Effect.

SECTION 7.10. Compliance with Law.

The business and operations of Borrower and its Subsidiaries (including the Guarantors) have been
and are being conducted in accordance with all applicable Laws other than violations of Laws which
do not (either individually or collectively) have a Material Adverse Effect.

SECTION 7.11. Full Disclosure.

All information heretofore furnished by Borrower or any of the Guarantors to Lender for purposes of
or in connection with this Agreement, any Loan Paper or any transaction

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MASTER CREDIT AGREEMENT – Page 26

 

contemplated hereby or thereby is, and all such information hereafter furnished by or on behalf of
Borrower or any of the Guarantors to Lender will be, true, complete and accurate in every material
respect. Borrower and the Guarantors have disclosed or has caused to be disclosed to Lender in
writing the occurrence of any event or the existence of any condition which have had or could
reasonably be expected to have a Material Adverse Effect.

SECTION 7.12. Organizational Structure, Nature of Business.

Schedule 7.12 hereto accurately reflects (1) the jurisdiction of incorporation or organization of
Borrower and each Subsidiary of Borrower, (ii) each jurisdiction in which Borrower and each
Subsidiary of Borrower is qualified to transact business, (iii) the authorized, issued and
outstanding stock or interests of Borrower and each Subsidiary of Borrower, and (iv) all
outstanding warrants, options, subscription rights, convertible securities or other rights to
purchase capital stock or interests of Borrower and each Subsidiary of Borrower. Borrower is
engaged primarily in the Oil and Gas Business. Except as set forth on Schedule 7.12 hereto,
Borrower does not have any Subsidiaries.

SECTION 7.13. Environmental Matters.

To the best of Borrower’s knowledge, no operation conducted by Borrower or any Subsidiary of
Borrower and no real or personal property now or previously owned or leased by Borrower or any
Subsidiary of Borrower (including, without limitation, Borrower’s or any such Subsidiary’s Mineral
Interests) and no operations conducted thereon, and to Borrower’s knowledge, no operations of any
prior owner, lessee or operator of any such properties, is or has been in violation of any
Applicable Environmental Law other than violations which neither individually nor in the aggregate
will have a Material Adverse Effect, nor to the best of Borrower’s knowledge, is any such property
or operation the subject of any existing, pending or threatened Environmental Complaint which
could, individually or in the aggregate, have a Material Adverse Effect. All notices, permits,
licenses, and similar authorizations, required to be obtained or filed in connection with the
ownership or operation of each tract of real property or operations of Borrower or any of its
Subsidiaries thereon and each item of personal property owned, leased or operated by Borrower or
any of its Subsidiaries, including, without limitation, notices, licenses, permits and
authorizations required in connection with any past or present treatment, storage, disposal, or
release of Hazardous Substances into the environment, have been, to the best of Borrower’s
knowledge, duly obtained or filed except to the extent the failure to obtain or file such notices,
licenses, permits and authorizations would not have a Material Adverse Effect. All Hazardous
Substances generated at each tract of real property and by each item of personal property owned,
leased or operated by Borrower or any Subsidiary of Borrower have been, to the best of Borrower’s
knowledge, transported, treated, and disposed of only by carriers or facilities maintaining valid
permits under the Resource Conservation and Recovery Act of 1976, as amended from time to time, and
all other Applicable Environmental Laws. To the best of Borrower’s knowledge, there have been no
Hazardous Discharges which were not in compliance with Applicable Environmental Laws other than
Hazardous Discharges which would not, individually or in the aggregate, have a Material Adverse
Effect. Neither Borrower nor any Subsidiary of Borrower has any contingent liability in connection
with any Hazardous Discharge which could have a Material Adverse Effect.

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MASTER CREDIT AGREEMENT – Page 27

 

SECTION 7.14. Burdensome Obligations.

Neither Borrower nor any Subsidiary of Borrower nor any of the properties of Borrower or any
Subsidiary of Borrower, is subject to any Law or any pending or threatened change of Law or subject
to any restriction under its articles (or certificate) of incorporation, bylaws, partnership
agreement, regulations or comparable charter documents or under any agreement or instrument to
which Borrower or any Subsidiary of Borrower is a party, or by which any of their properties may be
subject or bound, which is so unusual or burdensome as to be likely in the foreseeable future to
have a Material Adverse Effect. Without limiting the foregoing, neither Borrower nor any Subsidiary
of Borrower is a party to or bound by any agreement or subject to any order of any Governmental
Authority which prohibits or restricts in any way the right of Borrower or any Subsidiary of
Borrower to make Distributions.

SECTION 7.15. Fiscal Year.

Borrower’s fiscal year is January 1 through December 31.

SECTION 7.16. No Default.

Neither a Default nor an Event of Default has occurred or will exist after giving effect to the
transactions contemplated by this Agreement or the other Loan Papers.

SECTION 7.17. Government Regulation.

Neither Borrower nor any Subsidiary of Borrower is subject to regulation under the Public Utility
Holding Company Act of 1935, the Federal Power Act, the Interstate Commerce Act (as any of the
preceding acts have been amended), the Investment Company Act of 1940 or any other Law which
regulates the incurring by it of Debt, including, but not limited to, Laws relating to common
contract carriers or the sale of electricity, gas, steam, water or other public utility services.

SECTION 7.18. Insider.

Neither Borrower nor any Subsidiary of Borrower is, and no Person having “control” (as that term is
defined in 12 U.S.C. Section 375(b) or regulations promulgated thereunder) of Borrower or any
Subsidiary of Borrower is, an “executive officer,” “director” or “shareholder” of Lender or any
bank holding company of which Lender is a Subsidiary or of any Subsidiary of such bank holding
company.

SECTION 7.19. No Default.

     Neither Borrower nor any Subsidiary is in default under or with respect to any contractual
obligation that could, either individually or in the aggregate, reasonably be expected to have a
Material Adverse Effect. No default has occurred and is continuing or would result from the
consummation of the transactions contemplated by this Agreement or any other Loan Paper.

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MASTER CREDIT AGREEMENT – Page 28

 

SECTION 7.20. ERISA Compliance

     (a) Each Plan is in compliance in all material respects with the applicable provisions of
ERISA, the Code and other Federal or state Laws. Each Plan that is intended to qualify under
Section 401(a) of the Code has received a favorable determination letter from the IRS or an
application for such a letter is currently being processed by the IRS with respect thereto and, to
the best knowledge of Borrower, nothing has occurred which would prevent, or cause the loss of,
such qualification. Borrower and each ERISA Affiliate have made all required contributions to each
Plan subject to Section 412 of the Code, and no application for a funding waiver or an extension of
any amortization period pursuant to Section 412 of the Code has been made with respect to any Plan.

     (b) There are no pending or, to the best knowledge of Borrower, threatened claims, actions or
lawsuits, or action by any Governmental Authority, with respect to any Plan that could be
reasonably be expected to have a Material Adverse Effect. There has been no prohibited transaction
or violation of the fiduciary responsibility rules with respect to any Plan that has resulted or
could reasonably be expected to result in a Material Adverse Effect.

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

SECTION 7.21. Disclosure

     Borrower has disclosed to Lender all agreements, instruments and corporate or other
restrictions to which it or any of its Subsidiaries is subject, and all other matters known to it,
that, individually or in the aggregate, could reasonably be expected to result in a Material
Adverse Effect. No report, financial statement, certificate or other information furnished
(whether in writing or orally) by or on behalf of any person to Lender in connection with the
transactions contemplated hereby and the negotiation of this Agreement or delivered hereunder or
under any other Loan Paper (in each case, as modified or supplemented by other information so
furnished) contains any material misstatement of fact or omits to state any material fact necessary
to make the statements therein, in the light of the circumstances under which they were made, not
misleading; provided that, with respect to projected financial information, Borrower
represents only that such information was prepared in good faith based upon assumptions believed to
be reasonable at the time.

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ARTICLE VIII. — AFFIRMATIVE COVENANTS

     Borrower covenants and agrees that so long as any amount payable under the Note remains
unpaid:

SECTION 8.1. Information.

Borrower will deliver, or cause to be delivered, to Lender:

     (a) as soon as available and in any event by March 31 of each year, audited consolidated and
consolidating balance sheets of Borrower as of the end of the prior Fiscal Year and the related
consolidated and consolidating statements of income and statements of cash flow for such Fiscal
Year, setting forth in each case in comparative form the figures for the previous Fiscal Year, all
reported by Borrower in accordance with the income tax method of accounting, and prepared by an
independent certified public accounting firm acceptable to Lender;

     (b) as soon as available and in any event within forty-five (45) days after the end of each
Fiscal Quarter of each Fiscal Year, consolidated and consolidating balance sheets of Borrower as of the end of such Fiscal Quarter
and the related consolidated and consolidating statements of income for such quarter and for the portion of Borrower’s Fiscal Year
ended at the end of such Fiscal Quarter, setting forth in each case in comparative form the figures
for the corresponding quarter and the corresponding portion of Borrower’s previous Fiscal Year;

     (c) simultaneously with the delivery of each set of financial statements referred to in
Sections 8.1(a) and (b), a certificate of a Financial Officer of Borrower in the form of Exhibit E
attached hereto, (i) setting forth in reasonable detail the calculations required to establish
whether Borrower was in compliance with the requirements of Article X on the date of such financial
statements, (ii) stating whether there exists on the date of such certificate any Default and, if
any Default then exists, setting forth the details thereof and the action which Borrower is taking
or proposes to take with respect thereto, and (iii) a summary of the Hedge Transactions to which
Borrower or any Subsidiary of Borrower is a party on such date;

     (d) immediately upon any Authorized Officer becoming aware of the occurrence of any Default, a
certificate of an Authorized Officer setting forth the details thereof and the action which
Borrower is taking or proposes to take with respect thereto;

     (e) promptly notify Lender of the occurrence of any event or existence of any condition which
has had or could reasonably be expected to have a Material Adverse Effect, including information
regarding potential or contingent liabilities in excess of $250,000;

     (f) promptly notify Lender of any material litigation (in excess of $250,000) involving
Borrower or any Subsidiary of Borrower; and

     (g) from time to time such additional information regarding the financial position or business
of Borrower and its Subsidiaries as Lender may reasonably request.

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SECTION 8.2. Maintenance of Existence.

Borrower shall, and shall cause each of its Subsidiaries to, at all times (a) maintain its
existence in its jurisdiction of incorporation or organization, and (b) maintain its good standing
and qualification to transact business in all jurisdictions where the failure to maintain good
standing or qualification to transact business could have a Material Adverse Effect.

SECTION 8.3. Title Data.

Borrower shall, upon the request of Lender, cause to be delivered to Lender such title, opinions
and other information regarding title to the Borrowing Base Properties as are appropriate to
determine the status thereof.

SECTION 8.4. Right of Inspection.

Borrower will permit, and will cause each of its Subsidiaries to permit, any officer, employee or
Lender to visit and inspect any of the assets of Borrower and each of its Subsidiaries, examine
Borrower’s and each of its Subsidiaries’ books of record and accounts, take copies and extracts
therefrom, and discuss the affairs, finances and accounts of Borrower and each of its Subsidiaries
with Borrower’s and any such Subsidiary’s officers, accountants and auditors, all at such
reasonable times and as often as Lender may desire, all at the reasonable expense of Borrower.
Information obtained by Lender in any inspection shall be maintained as confidential and not
disclosed to third parties except that (i) Lender may disclose such information to its
representatives, agents, employees, consultants, attorneys and accountants; (ii) Lender may
disclose such information as may be mandated by legal process, and (iii) Lender may disclose and
use such information as may be necessary to enforce its rights under this Agreement and the Other
Loan Documents.

SECTION 8.5. Maintenance of Insurance.

Borrower will, and will cause each of its Subsidiaries to, at all times maintain or cause to be
maintained insurance covering such risks as are customarily carried by businesses similarly
situated, including, without limitation, the following: (a) workmen’s compensation insurance; (b)
employer’s liability insurance; (c) comprehensive general public liability insurance; (d) insurance
against (other than losses or damage to property owned by Borrower or any Subsidiary of Borrower
which is self insured) losses customarily insured against as a result of damage by-fire, lightning,
hail, tornado, explosion and other similar risk; and (e) comprehensive automobile liability
insurance.

SECTION 8.6. Payment of Taxes and Claims.

Borrower will, and will cause each of its Subsidiaries to, pay (a) all Taxes imposed upon it or any
of its assets or with respect to any of its franchises, business, income or profits before any
material penalty or interest accrues thereon and (b) all material claims (including, without
limitation, claims for labor, services, materials and supplies) for sums which have become due and
payable and which by law have or might become a Lien (other than a Permitted Encumbrance) on any of
its assets; provided, however, no payment of Taxes or claims shall be

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required if (i) the amount, applicability or validity thereof is currently being contested in good
faith by appropriate action promptly initiated and diligently conducted in accordance with good
business practices and no property or assets of Borrower or any Subsidiary of Borrower is subject
to any pending levy or execution, (ii) Borrower and each Subsidiary of Borrower shall have set
aside on its books reserves deemed by Lender to be adequate with respect thereto, and (iii)
Borrower has notified Lender of such circumstances, in detail satisfactory to Lender.

SECTION 8.7. Compliance with Laws and Documents.

Borrower will comply, and will cause each of its Subsidiaries to comply, with all Laws, their
respective certificates or articles of incorporation, bylaws, partnership agreement, regulations
and similar organizational documents and all Material Agreements to which Borrower or any
Subsidiary of Borrower is a party, if a violation, alone or when combined with all other such
violations, could have a Material Adverse Effect.

SECTION 8.8. Operation of Properties and Equipment.

Borrower will, and will cause each of its Subsidiaries to, maintain, develop and operate its
Mineral Interests in a good and workmanlike manner.

SECTION 8.9. Environmental Law Compliance.

Except to the extent a failure to comply would not have a Material Adverse Effect, Borrower will,
and will cause each of its Subsidiaries to, use its reasonable best efforts to comply with all
Applicable Environmental Laws, including, without limitation, (a) all licensing, permitting,
notification and similar requirements of Applicable Environmental Laws, and (b) all provisions of
all Applicable Environmental Laws regarding storage, discharge, release, transportation, treatment
and disposal of Hazardous Substances. Borrower will, and will cause each of its Subsidiaries to,
promptly pay and discharge when due all legal debts, claims, liabilities and obligations with
respect to any clean-up or remediation measures necessary to comply with Applicable Environmental
Laws.

SECTION 8.10. Additional Documents.

Borrower shall, and shall cause each of its Subsidiaries to, cure promptly any defects in the
creation and issuance of each Note, and the execution and delivery of this Agreement and the other
Loan Papers and, at Borrower’s expense, Borrower shall promptly and duly execute and deliver to
Lender, upon reasonable request, all such other and further documents, agreements and instruments
in compliance with or accomplishment of the covenants and agreements of Borrower and its
Subsidiaries in this Agreement and the other Loan Papers as may be reasonably necessary or
appropriate in connection therewith.

SECTION 8.11. Swap Contracts.

Borrower will comply, and will cause each of its Subsidiaries to comply (as applicable), with all
the terms, provisions and conditions contained in any Swap Contracts entered into by and

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between Borrower or any Subsidiary of Borrower and Lender or any affiliate of Lender after the date
hereof.

SECTION 8.12. Opinion of Counsel.

Borrower shall cause its counsel to deliver an opinion of counsel, effective as of the Closing
Date, regarding the matters as set forth on Exhibit I attached hereto. The opinion may be subject
to reasonable and customary qualifications and limitations. All borrowing after the effective date
of the opinion shall be allowed by Lender in reliance on such opinion of counsel.

ARTICLE IX. — NEGATIVE COVENANTS

     Borrower agrees that so long as any amount payable under the Note remains unpaid:

SECTION 9.1. Incurrence of Debt.

Borrower and Guarantors will not, nor will Borrower permit any of its Subsidiaries to, incur,
become or remain liable for any Debt other than (a) the Obligations, (b) guarantee obligations of
Borrower under the Borrower Guaranty, (c) indebtedness from Lariat in the principal amount of
$34,106,616 to Merrill Lynch Capital Markets, (d) purchase money obligations of Lariat for the
purchase of drilling rigs and related service equipment and (e) purchase money obligations of
Borrower or Guarantors (other than those in (d) above), not to exceed $5,000,000.

SECTION 9.2. Negative Pledge.

Borrower and Guarantors will not, nor will Borrower permit any of its Subsidiaries to, create,
assume or suffer to exist any Lien on any asset of Borrower or any of its Subsidiaries, other than
Permitted Encumbrances. Borrower will not, nor will Borrower permit any of its Subsidiaries to,
enter into or become bound by any agreement (other than this Agreement) that prohibits or otherwise
restricts the right of Borrower or any of its Subsidiaries, to create, assume or suffer to exist
any Lien on Borrower’s or any of its Subsidiaries’ assets in favor of Lender.

SECTION 9.3. Consolidations and Mergers.

Borrower and Guarantors will not, nor will Borrower permit any of its Subsidiaries to, consolidate
or merge with or into any other Person; provided, that so long as no Default or Event of Default
exists or will result (a) Borrower may merge or consolidate with another Person so long as Borrower
is the surviving corporation, and (b) any wholly owned Subsidiary of Borrower may merge or
consolidate with any other Person so long as a wholly owned Subsidiary of Borrower is the surviving
corporation.

SECTION 9.4. Asset Dispositions.

Borrower and Guarantors will not, nor will Borrower permit any of its Subsidiaries to, sell any
assets of Borrower or any such Subsidiary which are used or useful to its business, other than the
sale of such assets in the ordinary course of such business; provided that, Borrower, its
Subsidiaries and the Guarantors may make disposition of other assets (not in the ordinary course

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of business) not to exceed $10,000,000 in the aggregate through the Revolving Loan Termination
Date.

SECTION 9.5. Amendments to Organizational Documents.

Borrower and Guarantors will not, nor will Borrower permit any of its Subsidiaries to, enter into
or permit any modification or amendment of, or waive any material right or obligation of any Person
under, its certificate or articles of incorporation, bylaws, regulations or other organizational
documents other than amendments, modifications and waivers which will not, individually or in the
aggregate, have a Material Adverse Effect.

SECTION 9.6. Use of Proceeds.

The proceeds of the Loan will be used to (i) refinance the existing indebtedness under the Existing
Credit Agreement; (ii) refinance the Additional Indebtedness; (iii) to finance capital
expenditures; (iv) to pay fees and expenses incurred in connection with the Loan; and (v) to
provide for working capital and other general corporate purposes of the Borrower. None of the
proceeds of the Loan will be used, directly or indirectly, for the purpose, whether immediate,
incidental or ultimate, of purchasing or carrying any Margin Stock, and none of such proceeds will
be used in violation of applicable Law (including, without limitation, the Margin Regulations).

SECTION 9.7. Hedge Transactions.

Unless otherwise expressly consented to in writing by Lender, Borrower and Guarantors will not, nor
will Borrower permit any of its Subsidiaries to, enter into any Oil and Gas Hedge Transactions
which would cause the volume of Hydrocarbons with respect to which a settlement payment is
calculated under such Oil and Gas Hedge Transactions to exceed seventy five percent (75%) of
Borrower’s or such Subsidiary’s anticipated production from Proved Producing Mineral Interests
during the period from the immediately preceding settlement date (or the commencement of such Hedge
Transaction if there is no prior settlement date) to such settlement date.

SECTION 9.8. Fiscal Year.

Borrower shall not change its fiscal year.

SECTION 9.9. Change in Business.

Borrower will not engage in any business other than the business engaged in by Borrower on the date
hereof as described in Section 7.12 hereof. Borrower shall not change its place of organization
without giving Lender thirty (30) days prior notice.

SECTION 9.10. Change of Control or Management.

The Borrower shall not permit any change to occur in its present stock ownership, if such change
would cause N. Malone Mitchell 3rd and Amy Mitchell to own less than thirty five percent
(35%)

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of the issued and outstanding common stock (or other voting stock) of Borrower. Borrower agrees to
give prompt notice to Bank in writing concerning any material changes in the ownership, control or
executive management of the Borrower.

SECTION 9.11. Restrictions on Dividends and Distributions on and Redemptions of Capital Stock.

If an Event of Default exists, the Borrower will not declare or pay, or if declared will not pay on
the dividend payment date next succeeding any such declaration, or authorize the declaration or
payment of, any dividend on, or purchase, retire, redeem or otherwise acquire for value any share
of, or make any distribution in cash, property, or securities in respect of any class of its
capital stock, or purchase, retire, redeem or otherwise acquire for value, or make any distribution
in cash, property or securities in respect of, any other indebtedness.

ARTICLE X. — FINANCIAL COVENANTS

     Borrower agrees that so long any amount payable under the Note remains unpaid:

SECTION 10.1. Funded Debt Ratio.

Borrower shall not permit its Consolidated Funded Debt to EBITDA to exceed 3.50 to 1 during the
term of the Revolving Loan.

SECTION 10.2. Minimum Fixed Charge Coverage.

Borrower shall maintain a minimum fixed charge coverage ratio of at least 2.50 to 1, with the ratio
calculated by taking EBITDA and dividing by Interest Expense, plus current maturities of long term
debt plus the next 12 months of scheduled Monthly Reductions.

SECTION 10.3. Calculations of Ratios.

The ratios in Sections 10.1 and 10.2 shall be calculated on a rolling, four quarter basis.

SECTION 10.4. Net Worth.

Borrower agrees to maintain a minimum Consolidated Tangible Net Worth of $225,000,000 (as of
December 31, 2005) and adjusted upwards for (i) 50% of each calendar year’s net income, without
deduction for any loss, and (ii) 100% of any equity or other capital contributions.

ARTICLE XI. — DEFAULTS

SECTION 11.1. Events of Default.

If one or more of the following events (collectively “Events of Default” and individually an “Event
of Default”) shall have occurred and be continuing:

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     (a) Borrower shall fail to pay when due any principal or accrued interest on the Note or any
fees or any other amount payable hereunder and such failure shall continue for a period of five (5)
days following the due date;

     (b) Borrower shall fail to observe or perform any covenant or agreement contained in Section
6.3 of this Agreement;

     (c) Borrower or any Subsidiary of Borrower shall fail to observe or perform any covenant or
agreement contained in this Agreement or the other Loan Papers (other than those referenced in
Sections 11.1(a), (b) and (c) and such failure continues for a period of thirty (30) days after the
earlier of (i) the date any Authorized Officer of Borrower acquires knowledge of such failure, or
(ii) written notice of such failure has been given to Borrower by Lender;

     (d) any representation, warranty, certification or statement made or deemed to have been made
by Borrower or any Subsidiary of Borrower in any certificate, financial statement or other document
delivered pursuant to this Agreement shall prove to have been incorrect in any material respect
when made;

     (e) Borrower or any Subsidiary of Borrower shall fail to make any payment when due on any Debt
of such Person in a principal amount equal to or greater than $250,000 or any other event or
condition shall occur which (i) results in the acceleration of the maturity of any such Debt, or
(ii) entitles the holder of such Debt to accelerate the maturity thereof;

     (f) Borrower or any Subsidiary of Borrower shall commence a voluntary case or other proceeding
seeking liquidation, reorganization or other relief with respect to itself or its debts under any
bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment
of a trustee, receiver, liquidator, custodian or other similar official of it or any substantial
part of its property, or shall consent to any such relief or to the appointment of or taking
possession by any such official in an involuntary case or other proceeding commenced against it, or
shall make a general assignment for the benefit of creditors, or shall fail generally to pay its
debts as they become due, or shall take any corporate action to authorize any of the foregoing;

     (g) an involuntary case or other proceeding shall be commenced against Borrower or any
Subsidiary of Borrower seeking liquidation, reorganization or other relief with respect to it or
its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or
seeking the appointment of a trustee, receiver, liquidator, custodian or other similar official of
it or any substantial part of its property, and such involuntary case or other proceeding shall
remain undismissed and unstayed for a period of sixty (60) days; or an order for relief shall be
entered against Borrower or any Subsidiary of Borrower under the federal bankruptcy Laws as now or
hereafter in effect;

     (h) one (1) or more final judgments or orders for the payment of money aggregating in excess
of $250,000 shall be rendered against Borrower, Guarantor, or any Subsidiary of Borrower and such
judgment or order shall continue unsatisfied and unstayed for thirty (30) days;

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     (i) this Agreement or any other Loan Paper shall cease to be in full force and effect or shall
be declared null and void or the validity or enforceability thereof shall be contested or
challenged by Borrower or any Subsidiary of Borrower, or Borrower or any Subsidiary of Borrower,
shall deny that it has any further liability or obligation under any of the Loan Papers; or

     (j) a Material Advance Effect has occurred;

then, and in every such event, Lender shall without presentment, notice or demand (unless expressly
provided for herein) of any kind (including, without limitation, notice of intention to accelerate
and acceleration), all of which are hereby waived, take such actions as may be permitted by the
Loan Papers including, declaring the Note (together with accrued interest thereon) to be, and the
Note shall thereupon become, immediately due and payable; provided that in the case of any of the
Events of Default specified in Sections 11.1(f) or (g) , without any notice to Borrower or any
other act by Lender, the Note (together with accrued interest thereon) shall become immediately due
and payable.

ARTICLE XII. — CHANGE IN CIRCUMSTANCES

SECTION 12.1. Taxes.

     (a) Any and all payments by Borrower to or for the account of Lender hereunder or under any
other Loan Paper shall be made free and clear of and without deduction for any and all present or
future Taxes and all liabilities with respect thereto, excluding Taxes imposed on its income, and
franchise Taxes imposed on it, by the jurisdiction under the Laws of which Lender (or its
Applicable Lending Office) is organized or any political subdivision thereof. If Borrower shall be
required by law to deduct any Taxes from or in respect of any sum payable under this Agreement or
any other Loan Paper to Lender, (i) the sum payable shall be increased as necessary so that after
making all required deductions (including deductions applicable to additional sums payable under
this Section 12.2) Lender receives an amount equal to the sum it would have received had no such
deductions been made, (ii) Borrower shall make such deductions, (iii) Borrower shall pay the full
amount deducted to the relevant taxation authority or other authority in accordance with applicable
law, and (iv) Borrower shall furnish to Lender, at its address referred to in Section 13.1, the
original or a certified copy of a receipt evidencing payment thereof.

     (b) In addition, Borrower agrees to pay any and all present or future stamp or documentary
Taxes and any other excise or property Taxes or charges or similar levies which arise from any
payment made under this Agreement or any other Loan Paper or from the execution or delivery of, or
otherwise with respect to, this Agreement or any other Loan Paper (hereinafter referred to as
“Other Taxes”).

     (c) Borrower agrees to indemnify Lender for the full amount of Taxes and Other Taxes
(including, without limitation, any Taxes or Other Taxes imposed or asserted by any

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jurisdiction on amounts payable under this Section 12.2) paid by Lender and any liability
(including penalties, interest, and expenses) arising therefrom or with respect thereto.

     (d) If Borrower is required to pay additional amounts to or for the account of Lender pursuant
to this Section 12.2, then Lender will agree to use reasonable efforts to change the jurisdiction
of its Applicable Lending Office so as to eliminate or reduce any such additional payment which may
thereafter accrue if such change, in the judgment of Lender, is not otherwise disadvantageous to
Lender.

     (e) Without prejudice to the survival of any other agreement of Borrower hereunder, the
agreements and obligations of Borrower contained in this Section 12.2 shall survive the payment in
full of the Note.

SECTION 12.2. Discretion of Lender as to Manner of Funding.

     Notwithstanding any provisions of this Agreement to the contrary, Lender shall be entitled to fund
and maintain its funding of all or any part of the Loan in any manner it sees fit, it being
understood, however, that for the purposes of this Agreement all determinations hereunder shall be
made as if Lender had actually funded and maintained the Loan during the applicable Interest Period
through the purchase of deposits having a maturity corresponding to the last day of such Interest
Period and bearing an interest rate equal to the Eurodollar Rate for such Interest Period.

ARTICLE XIII. — MISCELLANEOUS

SECTION 13.1.  Notices.

All notices, requests and other communications to any party hereunder shall be in writing
(including bank wire, telecopy or similar writing) and shall be given, to such party at its address
or telecopier number set forth on the signature pages hereof or at such other address or telecopy
number as such party may hereafter specify for the purpose by notice to the other parties hereto.
Each such notice, request or other communication shall be effective (a) if given by telecopy, when
such telecopy is transmitted to the telecopy number specified in this Section 13.1 and the
appropriate answerback is received or receipt is otherwise confirmed, (b) if given by mail, three
(3) Domestic Business Day after deposit in the mails with first class postage prepaid, addressed as
aforesaid, or (c) if given by any other means, when delivered at the address specified in this
Section 13.1; provided that notices to Lender under Article II shall not be effective until
received.

SECTION 13.2. No Waivers.

No failure or delay by Lender in exercising any right, power or privilege hereunder or under the
Note or any other Loan Paper shall operate as a waiver thereof nor shall any single or partial
exercise thereof preclude any other or further exercise thereof or the exercise of any other right,
power or privilege. The rights and remedies herein provided shall be cumulative and not exclusive
of any rights or remedies provided by Law or in any of the other Loan Papers.

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SECTION 13.3. Expenses: Indemnification.

     (a) Borrower agrees to pay on demand all reasonable costs and expenses of Lender in connection
with the preparation, execution, delivery, modification, and amendment of this Agreement, the other
Loan Papers, and the other documents to be delivered hereunder, including, without limitation, the
reasonable fees and expenses of counsel for Lender with respect thereto and with respect to
advising Lender as to its rights and responsibilities under the Loan Papers. Borrower further
agrees to pay on demand all costs and expenses of Lender, if any (including, without limitation,
reasonable attorneys’ fees and expenses), in connection with the enforcement (whether through
negotiations, legal proceedings, or otherwise) of the Loan Papers and the other documents to be
delivered hereunder.

     (b) BORROWER AND EACH GUARANTOR AGREES TO INDEMNIFY LENDER AND HOLD LENDER HARMLESS FROM AND
AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES, LIABILITIES, COSTS, AND EXPENSES (INCLUDING, WITHOUT
LIMITATION, REASONABLE ATTORNEYS’ FEES) THAT MAY BE INCURRED BY OR ASSERTED OR AWARDED AGAINST
LENDER, IN EACH CASE ARISING OUT OF OR IN CONNECTION WITH OR BY REASON OF (INCLUDING, WITHOUT
LIMITATION, IN CONNECTION WITH ANY INVESTIGATION, LITIGATION, OR PROCEEDING OR PREPARATION OF
DEFENSE IN CONNECTION THEREWITH) THE LOAN PAPERS, ANY OF THE TRANSACTIONS CONTEMPLATED HEREIN OR
THE ACTUAL OR PROPOSED USE OF THE PROCEEDS OF THE LOAN (INCLUDING ANY OF THE FOREGOING ARISING FROM
THE NEGLIGENCE OF LENDER), EXCEPT TO THE EXTENT SUCH CLAIM, DAMAGE, LOSS, LIABILITY, COST, OR
EXPENSE IS FOUND IN A FINAL, NON-APPEALABLE JUDGMENT BY A COURT OF COMPETENT JURISDICTION TO HAVE
RESULTED FROM LENDER’S GROSS NEGLIGENCE OR WILLFUL MISCONDUCT. IN THE CASE OF AN INVESTIGATION,
LITIGATION OR OTHER PROCEEDING TO WHICH THE INDEMNITY IN THIS SECTION 13.3 APPLIES, SUCH INDEMNITY
SHALL BE EFFECTIVE WHETHER OR NOT SUCH INVESTIGATION, LITIGATION OR PROCEEDING IS BROUGHT BY
BORROWER, ITS DIRECTORS, SHAREHOLDERS OR CREDITORS OR LENDER OR ANY OTHER PERSON OR LENDER IS
OTHERWISE A PARTY THERETO AND WHETHER OR NOT THE TRANSACTIONS CONTEMPLATED HEREBY ARE CONSUMMATED.
BORROWER AND GUARANTORS AGREE NOT TO ASSERT ANY CLAIM AGAINST LENDER, ANY OF ITS AFFILIATES, OR ANY
OF ITS DIRECTORS, OFFICERS, EMPLOYEES, ATTORNEYS, AGENTS, AND ADVISERS, ON ANY THEORY OF LIABILITY,
FOR SPECIAL, INDIRECT, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING OUT OF OR OTHERWISE RELATING TO
THE LOAN PAPERS, ANY OF THE TRANSACTIONS CONTEMPLATED HEREIN OR THE ACTUAL OR PROPOSED USE OF THE
PROCEEDS OF THE LOAN.

     (c) Without prejudice to the survival of any other agreement of Borrower and Guarantors
hereunder, the agreements and obligations of Borrower and Guarantors contained in this Section 13.3
shall survive the payment in full of the Loan and all other amounts payable under this Agreement.

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SECTION 13.4. Right of Set-off.

(a) Upon the occurrence and during the continuance of any Event of Default, Lender (and each of its
Affiliates) is hereby authorized at any time and from time to time, to the fullest extent permitted
by Law, to set off and apply any and all deposits (general or special, time or demand, provisional
or final) at any time held and other indebtedness at any time owing by Lender (or any of its
Affiliates) to or for the credit or the account of Borrower against any and all of the Obligations,
irrespective of whether Lender shall have made any demand under this Agreement or the Note and
although such Obligations may be unmatured. Lender agrees promptly to notify Borrower after any
such set-off and application made by Lender; provided, however, that the failure to give such
notice shall not affect the validity of such set-off and application. The rights Lender under this
Section 13.4 are in addition to other rights and remedies (including, without limitation, other
rights of set-off) that Lender may have.

SECTION 13.5. Amendments and Waivers.

Any provision of this Agreement, the Note or the other Loan Papers may be amended or waived if, but
only if, such amendment or waiver is in writing and is signed by Borrower and Lender.

SECTION 13.6. Survival.

All representations, warranties and covenants made by Borrower and Guarantors herein or in any
certificate or other instrument delivered by it or in its behalf under the Loan Papers shall be
considered to have been relied upon by Lender and shall survive the delivery to Lender of such Loan
Papers or the extension of the Loan (or any part thereof), regardless of any investigation made by
or on behalf of Lender. The indemnity provided in Section 13.3(b) herein shall survive the
repayment of all credit advances hereunder and/or the discharge or release of any Lien granted
hereunder or in any other Loan Paper, contract or agreement between Borrower, Guarantor, any
Subsidiary of Borrower and Lender.

SECTION 13.7. Limitation on Interest.

Regardless of any provision contained in the Loan Papers, Lender shall never be entitled to
receive, collect, or apply, as interest on the Loan, any amount in excess of the Maximum Lawful
Rate, and in the event Lender ever receives, collects or applies as interest any such excess, such
amount which would be deemed excessive interest shall be deemed a partial prepayment of principal
and treated hereunder as such; and if the Loan is paid in full, any remaining excess shall promptly
be paid to Borrower. In determining whether or not the interest paid or payable under any specific
contingency exceeds the Maximum Lawful Rate, Borrower and Lender shall, to the extent permitted
under applicable Law, (a) characterize any nonprincipal payment as an expense, fee or premium
rather than as interest, (b) exclude voluntary prepayments and the effects thereof and (c)
amortize, prorate, allocate and spread, in equal parts, the total amount of the interest throughout
the entire contemplated term of the applicable Note, so that the interest rate is the Maximum
Lawful Rate throughout the entire term of the applicable Note; provided, however, that if the
unpaid principal balance thereof is paid and performed in full prior to the end of the full
contemplated term thereof, and if the interest received for the actual period of existence thereof
exceeds the Maximum Lawful Rate, Lender shall refund to Borrower the

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amount of such excess and, in such event, Lender shall not be subject to any penalties provided by
any laws for contracting for, charging, taking, reserving or receiving interest in excess of the
Maximum Lawful Rate.

SECTION 13.8. Invalid Provisions.

If any provision of the Loan Papers is held to be illegal, invalid, or unenforceable under present
or future Laws effective during the term thereof, such provision shall be fully severable, the Loan
Papers shall be construed and enforced as if such illegal, invalid, or unenforceable provision had
never comprised a part thereof, and the remaining provisions thereof shall remain in full force and
effect and shall not be affected by the illegal, invalid, or unenforceable provision or by its
severance therefrom. Furthermore, in lieu of such illegal, invalid, or unenforceable provision
there shall be added automatically as a part of the Loan Papers a provision as similar in terms to
such illegal, invalid, or unenforceable provision as may be possible and be legal, valid and
enforceable.

SECTION 13.9. Waiver of Consumer Credit Laws.

Pursuant to Chapter 346 of the Texas Finance Code, as amended, Borrower and Guarantors agree that
such Chapter 346 shall not govern or in any manner apply to the Loan.

SECTION 13.10. Successors and Assigns.

The provisions of this Agreement shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and assigns, except that Borrower may not assign or
otherwise transfer any of its rights under this Agreement.

SECTION 13.11. Texas Law.

THIS AGREEMENT, THE NOTE AND THE OTHER LOAN PAPERS HAVE BEEN EXECUTED AND DELIVERED IN THE STATE OF
TEXAS AND SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF TEXAS AND
THE LAWS OF THE UNITED STATES OF AMERICA.

SECTION 13.12. Consent to Jurisdiction, Waiver of Immunities.

     (a) Borrower and Guarantors hereby irrevocably submit to the jurisdiction of any Texas State
or Federal court sitting in the Northern District of Texas over any action or proceeding arising
out of or relating to this Agreement or any other Loan Papers, and Borrower and Guarantors hereby
irrevocably agrees that all claims in respect of such action or proceeding may be heard and
determined in such Texas State or Federal court. As an alternative, Borrower and Guarantors
irrevocably consent to the service of any and all process in any such action or proceeding by the
mailing of copies of such process to such Person at its address specified in Section 13.1. Borrower
and Guarantors agree that a final judgment on any such action or proceeding shall be conclusive and
may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by
law.

 FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page 41

 

 

     (b) Nothing in this Section 13.12 shall affect any right of Lender to serve legal process in
any other manner permitted by law or affect the right of Lender to bring any action or proceeding
against Borrower, the Guarantors, or their properties in the courts of any other jurisdictions.

     (c) To the extent that Borrower and Guarantors have or hereafter may acquire any immunity from
jurisdiction of any court or from any legal process (whether through service or notice, attachment
prior to judgment, attachment in aid of execution, execution or otherwise) with respect to itself
or its property, Borrower and Guarantors hereby irrevocably waive such immunity in respect of its
obligations under this Agreement and the other Loan Papers.

SECTION 13.13. Counterparts, Effectiveness.

This Agreement may be signed in any number of counterparts, each of which shall be an original,
with the same effect as if the signatures thereto and hereto were upon the same instrument.

SECTION 13.14. No Third Party Beneficiaries.

It is expressly intended that there shall be no third party beneficiaries of the covenants,
agreements, representations or warranties herein contained.

SECTION 13.15. Complete Agreement.

THIS AGREEMENT AND THE OTHER LOAN PAPERS COLLECTIVELY REPRESENT THE FINAL AGREEMENT BY AND BETWEEN
LENDER, BORROWER, AND GUARANTORS AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS,
OR SUBSEQUENT ORAL AGREEMENTS OF LENDER, BORROWER, AND GUARANTORS. THERE ARE NO UNWRITTEN ORAL
AGREEMENTS BETWEEN LENDER, BORROWER, AND GUARANTORS.

SECTION 13.16. Waiver of Jury Trial.

BORROWER, LENDER, AND GUARANTORS HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVE TRIAL BY JURY IN ANY
LEGAL ACTION OR PROCEEDING RELATING TO THIS AGREEMENT OR ANY OF THE OTHER LOAN PAPERS AND FOR ANY
COUNTERCLAIM THEREIN.

SECTION 13.17. Arbitration.

     (A) NOT WITHSTANDING ANYTHING TO THE CONTRARY CONTAINED HEREIN OR IN ANY OTHER LOAN PAPER, THE
PARTIES HERETO HEREBY AGREE THAT ANY CONTROVERSY OR CLAIM BETWEEN OR AMONG THE PARTIES HERETO
INCLUDING BUT NOT LIMITED TO THOSE ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER LOAN
PAPER, INCLUDING ANY CLAIM BASED ON OR ARISING FROM AN ALLEGED TORT, SHALL BE DETERMINED BY BINDING
ARBITRATION IN ACCORDANCE WITH THE FEDERAL ARBITRATION ACT

 FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page 42

 

 

(OR IF NOT APPLICABLE, THE APPLICABLE STATE LAW), THE RULES OF PRACTICE AND PROCEDURE FOR THE
ARBITRATION OF COMMERCIAL DISPUTES OR J.A.M.S./ENDISPUTE OR ANY SUCCESSOR THEREOF (“J.A.M.S.”) AND
THE PROVISIONS SET FORTH BELOW. IN THE EVENT OF ANY INCONSISTENCY, THE PROVISIONS SET FORTH IN
CLAUSE (B) BELOW SHALL CONTROL. JUDGMENT UPON ANY ARBITRATION AWARD MAY BE ENTERED IN ANY COURT
HAVING JURISDICTION. ANY PARTY TO THIS AGREEMENT MAY BRING AN ACTION, INCLUDING A SUMMARY OR
EXPEDITED PROCEEDING, TO COMPEL ARBITRATION OF ANY CONTROVERSY OR CLAIM TO WHICH THIS AGREEMENT
APPLIES IN ANY COURT HAVING JURISDICTION OVER SUCH ACTION.

     (B) THE ARBITRATION SHALL BE CONDUCTED IN THE COUNTY OF BORROWER’S DOMICILE AT THE TIME OF THE
EXECUTION OF THIS AGREEMENT AND ADMINISTERED BY J.A.M.S. WHO WILL APPOINT AN ARBITRATOR; IF
J.A.M.S. IS UNABLE OR LEGALLY PRECLUDED FROM ADMINISTERING THE ARBITRATION, THEN THE AMERICAN
ARBITRATION ASSOCIATION WILL SERVE. ALL ARBITRATION HEARINGS WILL BE COMMENCED WITHIN NINETY (90)
DAYS OF THE DEMAND FOR ARBITRATION; FURTHER, THE ARBITRATOR SHALL ONLY, UPON A SHOWING OF CAUSE, BE
PERMITTED TO EXTEND THE COMMENCEMENT OF SUCH HEARING FOR UP TO AN ADDITIONAL SIXTY (60) DAYS.

     (C) NOTHING IN THIS SECTION 13.17 SHALL BE DEEMED TO (i) LIMIT THE APPLICABILITY OF ANY
OTHERWISE APPLICABLE STATUTES OF LIMITATION OR REPOSE AND ANY WAIVERS CONTAINED IN THIS AGREEMENT;
OR (ii) BE A WAIVER BY LENDER OF THE PROTECTION AFFORDED TO IT BY 12 U.S.C. SEC. 91 OR ANY
SUBSTANTIALLY EQUIVALENT STATE LAW; OR (iii) LIMIT THE RIGHT OF LENDER (A) TO EXERCISE SELF HELP
REMEDIES SUCH AS (BUT NOT LIMITED TO) SETOFF, OR (B) TO FORECLOSE AGAINST ANY REAL OR PERSONAL
PROPERTY COLLATERAL, OR (C) TO OBTAIN FROM A COURT PROVISIONAL OR ANCILLARY REMEDIES SUCH AS (BUT
NOT LIMITED TO) INJUNCTIVE RELIEF, WRIT OF POSSESSION OR THE APPOINTMENT OF A RECEIVER. LENDER MAY
EXERCISE SUCH SELF HELP RIGHTS, FORECLOSE UPON SUCH PROPERTY OR OBTAIN SUCH PROVISIONAL OR
ANCILLARY REMEDIES BEFORE, DURING OR AFTER THE PENDENCY OF ANY ARBITRATION PROCEEDING BROUGHT
PURSUANT TO THIS AGREEMENT. NEITHER THIS EXERCISE OF SELF HELP REMEDIES NOR THE INSTITUTION OR
MAINTENANCE OF AN ACTION FOR FORECLOSURE OR PROVISIONAL OR ANCILLARY REMEDIES SHALL CONSTITUTE A
WAIVER OF THE RIGHT OF ANY PARTY, INCLUDING THE CLAIMANT IN ANY SUCH ACTION, TO ARBITRATE THE
MERITS OF THE CONTROVERSY OR CLAIM OCCASIONING RESORT TO SUCH REMEDIES.

SECTION 13.18. Agreement Controls.

In the event of any conflict between the terms and provisions of this Agreement and the terms and
provisions of the other Loan Papers, the terms and provisions of this Agreement shall govern.

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page 43

 

 

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed by their
respective Authorized Officers on the day and year first above written.

(signature page immediately follows)

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Page 44

 

 

	 	 	 	 	 
	BORROWER:
	 
	 	 	 	 
	RIATA ENERGY, INC., a Texas corporation
	 
	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 

	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 
	Address for Notice:
	701 S. Taylor, Suite 426
	Amarillo, Texas 79101
	Fax No. (806) 376-9216
	 
	 	 	 	 
	GUARANTORS:
	 
	 	 	 	 
	ROC GAS COMPANY,
	a Texas corporation
	 
	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 

	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 
	ALSATE MANAGEMENT AND
	INVESTMENT COMPANY,
	a Texas corporation
	 
	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 

	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 
	INTEGRA ENERGY, L.L.C.,
	a Texas limited liability company
	 
	 	 	 	 
	By: RIATA ENERGY, INC., Member
	 
	 	 	 	 
	 

	 	By:	 	/s/ N. Malone Mitchell, 3rd
	 

	 	 	 	 
	 

	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 
	RIAGRA LAND AND CATTLE

	COMPANY, a Texas corporation
	 
	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 

	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 
	LARIAT COMPRESSION COMPANY, a Texas corporation
	 
	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 

	 	 	 	N. Malone Mitchell, 3rd, President

	 	 	 	 	 	 	 
	LARIAT SERVICES, INC., a Texas corporation
	 
	 	 	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 	 	 
	PETROSOURCE ENERGY COMPANY, L.P.

	By: PSE Management, LLC, general partner
	 
	 	 	 	 	 	 
	By:
	 	 	 	/s/ N. Malone Mitchell, 3rd
	 	 	 
	 	 	 	 	N. Malone Mitchell, 3rd, President
	 
	 	 	 	 	 	 
	PETROSOURCE PRODUCTION COMPANY, L.P.
	 
	 	 	 	 	 	 
	 	 	By: PetroSource Energy Management, LLC, General Partner
	 
	 	 	 	 	 	 
	 	 	     By:	 	/s/
N. Malone Mitchell, 3rd

	 

	 	 	 	 	 	 
	 

	 	 	 	 	 	          N. Malone Mitchell, 3rd, President
	 
	 	 	 	 	 	 
	Address for Notice for all Guarantors:
	701 S. Taylor, Suite 426
	Amarillo, Texas 79101
	Fax No. (806) 376-9216
	 
	 	 	 	 	 	 
	LENDER:
	 
	 	 	 	 	 	 
	BANK OF AMERICA, N.A.
	 
	 	 	 	 	 	 
	By:
	 	 	 	/s/ Charles Patterson
	 	 	 
	 	 	 	 	Charles Patterson, Senior Vice President
	 
	 	 	 	 	 	 
	Address for Notice:
	700 Louisiana St
	Houston, Texas 77002-2700
	Fax No. (713) 247-6099
	 
	 	 	 	 	 	 
	Applicable Lending Office:
	700 Louisiana St
	Houston, Texas 77002-2700
	Fax No. (713) 247-6099

 FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Signature Page

 

 

EXHIBIT A

Revolving Note

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Exhibit A – Page 1

 

 

EXHIBIT B

Borrower Guaranties

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Exhibit B – Page 1

 

 

EXHIBIT C

Modifications

FIRST AMENDED AND RESTATED

MASTER CREDIT AGREEMENT – Exhibit C – Page 1

 

 

Exhibit 10.4

EXHIBIT A

PROMISSORY NOTE

	 	 	 	 	 
	$200,000,000

	 	Amarillo, Texas
	 	January 12, 2006

     FOR VALUE RECEIVED, the undersigned, Riata Energy, Inc., a Texas corporation (“Riata”)
promises to pay to the order of Bank of America, N.A. (“Lender”) at the offices of Lender at 700
Louisiana St., Houston, Texas 77002-2700, the principal sum of Two Hundred Million and No/100
Dollars ($200,000,000), or so much thereof as may be advanced and outstanding, together with
interest, as hereinafter described. Riata may hereinafter be referred to as “Borrower.”

     This Note has been executed and delivered pursuant to, and is subject to and governed by, the
terms of that certain First Amended and Restated Master Credit Agreement dated as of January 12,
2006 (as hereafter renewed, extended, amended, or supplemented, the “Agreement”) between Borrower,
et al. and Lender. This Note is the Revolving Note referenced and defined in the Agreement.
Unless otherwise defined herein or unless the context hereof otherwise requires, each term used
herein with its initial letter capitalized has the meaning given to such term in the Agreement.

     Borrower also promises to pay interest on the unpaid principal amount hereof in like money at
the offices of Lender above referenced from the date hereof at the rates applicable to amounts
outstanding under the Revolving Loan provided in the Agreement and on the dates specified in the
Agreement.

     The principal balance of this Note shall be paid at the times and in the amounts required by
the Agreement. The entire outstanding principal balance hereof and all accrued but unpaid interest
thereon shall be due and payable in full on the Revolving Loan Termination Date.

     The borrowing availability hereunder is subject to the terms, conditions and limitations as
defined and determined in the Agreement.

     Upon and subject to the terms and conditions of the Agreement, Borrower shall be entitled to
prepay the principal of or interest on this Note from time to time and at any time, in whole or in
part.

     Upon the occurrence and continuance of an Event of Default, and upon the conditions stated in
the Agreement, Lender may, at its option, and shall, to the extent required in accordance with the
terms of the Agreement, declare the entire unpaid principal of and accrued interest on this Note
immediately due and payable (provided that, upon the occurrence of certain Events of Default, and
upon the conditions stated in the Agreement, such acceleration shall be automatic), without notice
(except as otherwise required by the Agreement), demand, or presentment, all of which are hereby
waived, and the holder hereof shall have the right to offset against this Note any sum or sums owed
by the holder hereof to Borrower. All past-due principal of and, to the

 

 

extent permitted by law, accrued interest on this Note shall, at the option of the holder hereof,
bear interest at the Maximum Lawful Rate.

     Notwithstanding the foregoing, if at any time, any rate of interest calculated under Section
2.4 of the Agreement (the “Contract Rate”) exceeds the Maximum Lawful Rate, the rate of interest
hereunder shall be limited to the Maximum Lawful Rate, but any subsequent reductions in the
Contract Rate shall not reduce the rate of interest on this Note below the Maximum Lawful Rate
until the total amount of interest accrued equals the amount of interest which would have accrued
(including the amount of interest which would have accrued prior to the payment or prepayment of
any portion of this Note) if the Contract Rate had at all times been in effect. In the event that
at maturity (stated or by acceleration), or at final payment of this Note, the total amount of
interest paid or accrued on this Note is less than the amount of interest which would have accrued
if the Contract Rate had at all times been in effect with respect thereto, then at such time
Borrower shall pay to the holder of this Note an amount equal to the difference between (a) the
lesser of the amount of interest which would have accrued if the Contract Rate had at all times
been in effect and the amount of interest which would have accrued if the Maximum Lawful Rate had
at all times been in effect, and (b) the amount of interest actually paid or accrued on this Note.

     Borrower has elected to authorize Lender to effect payment of sums due under this Note by
means of debiting Borrower’s account number 7183925. This authorization shall not affect the
obligation of Borrower to pay such sums when due, without notice, if there are insufficient funds
in such account to make such payment in full on the due date thereof, or if Lender fails to debit
the account.

     ARBITRATION. ANY CONTROVERSY OR CLAIM BETWEEN OR AMONG THE PARTIES HERETO INCLUDING
BUT NOT LIMITED TO THOSE ARISING OUT OF OR RELATING TO THIS INSTRUMENT, AGREEMENT OR DOCUMENT OR
ANY RELATED INSTRUMENTS, AGREEMENTS OR DOCUMENTS, INCLUDING ANY CLAIM BASED ON OR ARISING FROM AN
ALLEGED TORT, SHALL BE DETERMINED BY BINDING ARBITRATION IN ACCORDANCE WITH THE FEDERAL ARBITRATION
ACT (OR IF NOT APPLICABLE, THE APPLICABLE STATE LAW), THE RULES OF PRACTICE AND PROCEDURE FOR THE
ARBITRATION OF COMMERCIAL DISPUTES OF J.A.M.S./ENDISPUTE OR ANY SUCCESSOR THEREOF (“J.A.M.S.”), AND
THE “SPECIAL RULES” SET FORTH BELOW. IN THE EVENT OF ANY INCONSISTENCY, THE SPECIAL RULES SHALL
CONTROL. JUDGMENT UPON ANY ARBITRATION AWARD MAY BE ENTERED IN ANY COURT HAVING JURISDICTION. ANY
PARTY TO THIS INSTRUMENT, AGREEMENT OR DOCUMENT MAY BRING AN ACTION, INCLUDING A SUMMARY OR
EXPEDITED PROCEEDING, TO COMPEL ARBITRATION OF ANY CONTROVERSY OR CLAIM TO WHICH THIS AGREEMENT
APPLIES IN ANY COURT HAVING JURISDICTION OVER SUCH ACTION.

     A. SPECIAL RULES. THE ARBITRATION SHALL BE CONDUCTED IN THE COUNTY OF ANY
BORROWER’S DOMICILE AT THE TIME OF THE EXECUTION OF THIS INSTRUMENT, AGREEMENT OR

 

 

DOCUMENT AND ADMINISTERED BY J.A.M.S. WHO WILL APPOINT AN ARBITRATOR; IF J.A.M.S. IS
UNABLE OR LEGALLY PRECLUDED FROM ADMINISTERING THE ARBITRATION, THEN THE AMERICAN
ARBITRATION ASSOCIATION WILL SERVE. ALL ARBITRATION HEARINGS WILL BE COMMENCED WITHIN 90
DAYS OF THE DEMAND FOR ARBITRATION; FURTHER, THE ARBITRATOR SHALL ONLY, UPON A SHOWING OF
CAUSE, BE PERMITTED TO EXTEND THE COMMENCEMENT OF SUCH HEARING FOR UP TO AN ADDITIONAL 60
DAYS.

     B. RESERVATION OF RIGHTS. NOTHING IN THIS ARBITRATION PROVISION SHALL BE
DEEMED TO (I) LIMIT THE APPLICABILITY OF ANY OTHERWISE APPLICABLE STATUTES OF LIMITATION OR
REPOSE AND ANY WAIVERS CONTAINED IN THIS INSTRUMENT, AGREEMENT OR DOCUMENT; OR (II) BE A
WAIVER BY LENDER OF THE PROTECTION AFFORDED TO IT BY 12 U.S.C. SEC. 91 OR ANY SUBSTANTIALLY
EQUIVALENT STATE LAW; OR (III) LIMIT THE RIGHT OF LENDER HERETO (A) TO EXERCISE SELF HELP
REMEDIES SUCH AS (BUT NOT LIMITED TO) SETOFF, OR (B) TO FORECLOSE AGAINST ANY REAL OR
PERSONAL PROPERTY COLLATERAL, OR (C) TO OBTAIN FROM A COURT PROVISIONAL OR ANCILLARY
REMEDIES SUCH AS (BUT NOT LIMITED TO) INJUNCTIVE RELIEF, WRIT OF POSSESSION OR THE
APPOINTMENT OF A RECEIVER. LENDER MAY EXERCISE SUCH SELF HELP RIGHTS, FORECLOSE UPON SUCH
PROPERTY, OR OBTAIN SUCH PROVISIONAL OR ANCILLARY REMEDIES BEFORE, DURING OR AFTER THE
PENDENCY OF ANY ARBITRATION PROCEEDING BROUGHT PURSUANT TO THIS INSTRUMENT, AGREEMENT OR
DOCUMENT. NEITHER THIS EXERCISE OF SELF HELP REMEDIES NOR THE INSTITUTION OR MAINTENANCE OF
AN ACTION FOR FORECLOSURE OR PROVISIONAL OR ANCILLARY REMEDIES SHALL CONSTITUTE A WAIVER OF
THE RIGHT OF ANY PARTY, INCLUDING THE CLAIMANT IN ANY SUCH ACTION, TO ARBITRATE THE MERITS
OF THE CONTROVERSY OR CLAIM OCCASIONING RESORT TO SUCH REMEDIES.

ADDITIONAL WAIVERS. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE BORROWERS AND THE
GUARANTORS EACH HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVE ANY RIGHT THEY MAY HAVE TO
CLAIM OR RECOVER ANY PUNITIVE OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES OTHER THAN, OR IN ADDITION
TO, ACTUAL DAMAGES.

Notice. The following statutory notice required by §26.01 of the Texas Business and
Commerce Code is given:

THIS WRITTEN AGREEMENT AND THE LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES
AND MAY NOT BE 

 

 

CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE
PARTIES. 

THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES. 

     This Note amends and restates in its entirety the indebtedness as described in the Agreement.

BORROWER:

RIATA ENERGY, INC.

a Texas corporation

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

N. Malone Mitchell, 3rd, President
	 	 

Address for Notice:

701 S. Taylor, Suite 426

Amarillo, Texas 79101

Fax No. (806) 376-9216

 

 

EXHIBIT D

CERTIFICATE OF OWNERSHIP INTERESTS

     This Certificate of Ownership Interests (this “Certificate”) is executed and delivered
pursuant to that certain First Amended and Restated Master Credit Agreement dated as of January 12,
2006 (as amended from time to time, the “Agreement”), by and between Riata Energy, Inc., a Texas
corporation (“Riata” or “Borrower”) and Bank of America, N.A., a national banking association
(“Lender”). Unless otherwise defined herein, all capitalized terms shall have the meanings given
such terms in the Agreement.

     Borrower hereby represents and warrants to Lender that (a) Borrower holds good and defensible
title, subject only to Permitted Encumbrances and Immaterial Title Deficiencies, to the Borrowing
Base Properties attached hereto as Schedule I, (b) with the exception of Immaterial Title
Deficiencies, Borrower’s share of (i) the costs for each of the Borrowing Base Properties described
in the Initial Reserve Report is not greater than the decimal fraction set forth in the Initial
Reserve Report, before and after payout, as the case may be, and described therein by the
respective designations “working interests,” “WI,” “gross working interest,” “GWI,” or similar
terms (except in such cases where there is a corresponding increase in the net revenue interest),
and (ii) production from, allocated to, or attributed to each of such Borrowing Base Properties is
not less than the decimal fraction set forth in the Initial Reserve Report, before and after
payout, as the case may be, and described therein by the designations “net revenue interest,”
“NRI,” or similar terms, and (c) except in the case of wells which, in the aggregate, represent
less than two percent (2%) of the production from the Borrowing Base Properties described in the
Initial Reserve Report, each well drilled in respect of each of the Borrowing Base Properties
described in the Initial Reserve Report (A) is capable of, and is presently, producing Hydrocarbons
in commercially profitable quantities, and Borrower will receive payments for its share of
production, with no funds in respect of any thereof being presently held in suspense, other than
any such funds being held in suspense pending delivery of appropriate division orders, and (B) has
been drilled, bottomed, completely and operated in compliance with all applicable Laws and no such
well which is currently producing Hydrocarbons is subject to any penalty in production by reason of
such well having produced in excess of its allowable production.

     Borrower acknowledges and agrees that Lender is relying on this Certificate and the
representations and warranties herein contained in advancing funds under the Agreement and but for
Borrower’s execution and delivery of this Certificate, Lender would not advance funds under the
Agreement.

     Executed as of the 12th day of January 2006.

	 	 	 	 	 	 	 
	 	 	RIATA ENERGY, INC.

a Texas corporation	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

N. Malone Mitchell, 3rd, President
	 	 

 

 

Schedule I

[to be provided]

 

 

EXHIBIT E

RIATA ENERGY, INC.

FINANCIAL OFFICER’S CERTIFICATE

     The undersigned, the Financial Officer of Riata Energy, Inc., a Texas corporation (“Riata” or
“Borrower”) hereby (a) delivers this Certificate pursuant to Section 8.1(c) of that certain First
Amended and Restated Master Credit Agreement (the “Credit Agreement”) dated as of January 12, 2006,
by and between Riata and Bank of America, N.A. (“Lender”), and (b) certifies to Lender, with the
knowledge and intent that Lender may, without any independent investigation, rely fully on the
matters herein in connection with the Credit Agreement, as follows:

     1. Attached hereto as Schedule I are the financial statements of Riata as of and for the
Fiscal ___ Year ___ Quarter (check one) ended                                         ,                     .

     2. Such financial statements are true and correct in all material respects and fairly present
the financial condition of Riata as of the date indicated therein and the results of operations for
the respective periods indicated therein.

     3. Attached hereto as Schedule II are detailed calculations used by Borrower to establish that
Borrower was in compliance with the requirements of Article X of the Credit Agreement on the date
of the financial statements attached as Schedule I hereto.

     4. Unless otherwise disclosed on Schedule III attached hereto and incorporated herein by
reference for all purposes, neither a Default nor an Event of Default has occurred which is in
existence on the date hereof; provided, that for any Default or Event of Default disclosed on
Schedule III attached hereto, Borrower is taking or proposes to take the action to cure such
Default or Event of Default set forth on Schedule III.

     5. Attached hereto as Schedule IV is a summary of the Hedge Transactions to which Borrower or
any of its Subsidiaries is a party on the date of the financial statements attached hereto as
Schedule I.

     6. Except as described on Schedule V hereto, the representations and warranties of Borrower
set forth in the Agreement and the Loan Papers, delivered to Lender are true and correct on and as
of the date hereof, with the same effect as though such representations and warranties had been
made on and as of the date hereof or, if such representations and warranties are expressly limited
to particular dates, as of such particular dates.

 

 

     7. Since the date of the financial statements referenced in paragraph 1 above, no event has
occurred and no condition exists which has had, or which could reasonably be expected to have, a
Material Adverse Effect.

          Unless otherwise defined herein, all capitalized terms used herein shall have the meaning
given such terms in the Credit Agreement.

          IN WITNESS WHEREOF, the undersigned has duly executed this Financial Officer’s Certificate as
of January 12, 2006.

	 	 	 	 	 	 	 
	 	 	RIATA ENERGY, INC.

a Texas corporation	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 

	 	 

 

 

Schedule I

Financial Statements

(to be attached)

 

 

Schedule II

Compliance Calculations

(to be attached)

 

 

Schedule III

Defaults/Remedial Action

(to be attached)

 

 

Schedule IV

Summary of Hedge Transactions

(to be attached)

 

 

Schedule V

Qualifications to Representations and Warranties

 

 

EXHIBIT F

FORM OF ROLLOVER NOTICE

     Reference is made to that certain First Amended and Restated Master Credit Agreement dated as
of January 12, 2006 (as from time to time amended, the “Agreement”), by and among Riata Energy,
Inc. (“Riata” or “Borrower”) and Bank of America, N.A. (“Lender”). The terms which are defined in
the Agreement and which are used but not defined herein are used herein with the meanings given
them in the Agreement.

	 	o	 	Reference is hereby made to the existing Eurodollar Tranche outstanding under
the [Revolving Loan] in the amount of $                                                             which is subject to an Interest
Period expiring on                                     
                          ,                     . Borrower hereby requests thaton the expiration of such Interest Period the portion of the principal of the
[Revolving Loan] which is subject to such Tranche be made the subject of o Base Rate
Tranche or o Eurodollar Tranche having an Interest Period of one (1) month.
	 
	 	o	 	Borrower hereby requests that on                                                                                 ,                     , a portion of the
principal of the [Revolving Loan] in the amount of $                                                             which is currently
the subject of a Base Rate Tranche be made the subject of a Eurodollar Tranche having
an Interest Period of one (1) month.

     Borrower hereby certifies that:

	 	(a)	 	The Authorized Officer signing this instrument is the duly elected, qualified and
acting officer of Borrower as indicated below such officer’s signature hereto;
	 
	 	(b)	 	There does not exist on the date hereof any condition or event which constitutes a
Default or Event of Default; and
	 
	 	(c)	 	The representations and warranties of Borrower set forth in the Agreement and the
Loan Papers delivered to Lender are true and correct on and as of the date hereof, with the
same effect as though such representations and warranties had been made on and as of the
date hereof or, if such representations and warranties are expressly limited to particular
dates, as of such particular dates.

     IN WITNESS WHEREOF, this instrument is executed this                      day of                                         , 2006.

RIATA ENERGY, INC.

a Texas corporation

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 

N. Malone Mitchell, 3rd, President
	 	 

Exhibit F

 

 

EXHIBIT G

FORM OF REQUEST FOR BORROWING

     Reference is made to that certain First Amended and Restated Master Credit Agreement dated as
of January 12, 2006 (as from time to time amended, the “Agreement”) by and between Riata Energy,
Inc. (“Riata” or “Borrower”) and Bank of America, N.A. (“Lender”). Terms which are defined in the
Agreement and which are used but not defined herein are used herein with the meanings given them in
the Agreement. Pursuant to the terms of the Agreement, Borrower hereby requests a borrowing in the
amount of
$                                                            ___ to
be advanced on                                                                                                     .

     Borrower requests that the borrowing to be made hereunder shall be the subject of a [Base Rate
Tranche] [Eurodollar Tranche] and shall be in the aggregate amount and have the Interest Periods
set forth below:

	 	 	 	 	 
	Type of Borrowing	 	Aggregate Amount	 	Interest Period
	 
	 	 	 	 
	 

	 	 
	 	 
	 
	 	 	 	 
	 

	 	 
	 	 
	 
	 	 	 	 
	 

	 	 
	 	 

     Borrower hereby certifies that:

     (a) The Authorized Officer signing this instrument is duly elected, qualified
and acting officer of Borrower as indicated below such officer’s signature hereto.

     (b) The representations and warranties of Borrower set forth in the Agreement
and the Loan Papers delivered to Lender are true and correct on and as of the date
hereof, with the same effect as though such representations and warranties had been
made on and as of the date hereof or, if such representations and warranties are
expressly limited to particular dates, as of such particular dates. No material
changes have occurred in the financial condition of Borrower since the date of the
last financial reports delivered to Lender pursuant to Section 8.1 of the
Agreement.

     (c) There does not exist on the date hereof, any condition or even which
constitutes a Default or Event of Default, nor will any such Default or Event of
Default exist upon Borrower’s receipt and application

 

 

of the proceeds requested in
compliance with the applicable provisions of the Agreement.

     (d) Borrower has performed and complied with all agreements and conditions in
the Agreement required to be performed or complied with by Borrower on or prior to
the date hereof, and each of the conditions precedent to the borrowing contained in
the Agreement remain satisfied in all material respects.

     (e) After giving effect to the borrowing requested hereby, the Outstanding
Revolving Credit will not be in excess of the Revolving Commitment on the date
requested for the making of such borrowing.

     IN WITNESS WHEREOF, this instrument is executed as of                                                                                 _, 2006.

	 	 	 	 	 
	 	RIATA ENERGY, INC.

a Texas corporation

 	 
	 	By:  	 	 
	 	 	N. Malone Mitchell, 3rd, President 	 
	 	 	 	 
	 

Exhibit G

 

 

EXHIBIT H

FORM OF REQUEST FOR LETTER OF CREDIT

     Reference is made to that certain First Amended and Restated Master Credit Agreement dated as
of January 12, 2006 (as from time to time, the “Agreement”), by and among Riata Energy, Inc.
(“Riata” or “Borrower”) and Bank of America, N.A (“Lender”). Terms which are defined in the
Agreement and which are used but not defined herein are used herein with the meanings given them in
the Agreement.

     Pursuant to the terms of the Agreement, Borrower hereby requests Lender to issue a Letter of
Credit for the account of Borrower, as follows:

          Type of Commitment:

	 	 	 
	Requested Amount

	 	$                                                          
	Requested Date of Issuance

	 	                                                            
	Requested Expiration Date

	 	                                                            
	Summary of Terms

	 	                                                            
	(provide a brief description
of conditions under which the
drafts under such Letter of
Credit are to be available)

	 	                                                            
	Beneficiary (Name/Address)

	 	                                                            
	 

	 	                                                            
	 

	 	                                                            
	 

	 	                                                            

     Such Letter of Credit is more particularly described in the Letter of Credit Application of
Lender which is attached hereto.

     Borrower hereby certifies that:

     (a) The Authorized Officer signing this instrument is duly elected, qualified
and acting officer of Borrower as indicated below such officer’s signature hereto.

     (b) The representations and warranties of Borrower set forth in the Agreement
and the Loan Papers delivered to Lender are true and correct on and as of the date
hereof, with the same effect as though such representations and warranties had been
made on and as of the date hereof or, if such representations and warranties are
expressly limited to particular dates, as of such particular dates. No material
changes have occurred in the financial condition of Borrower since the date of the
last financial reports delivered to Lender pursuant to Section 8.1 of the
Agreement.

EXHIBIT H — Page — 1

 

 

     (c) There does not exist on the date hereof, any condition or even which
constitutes a Default or Event of Default, nor will any such Default or Event of
Default exist upon Borrower’s receipt and application of the proceeds requested in
compliance with the applicable provisions of the Agreement.

     (d) Borrower has performed and complied with all agreements and conditions in
the Agreement required to be performed or complied with by Borrower on or prior to
the date hereof, and each of the conditions precedent to the borrowing contained in
the Agreement remain satisfied in all material respects.

     (e) After giving effect to the borrowing requested hereby, the Outstanding
Revolving Credit will not be in excess of the Revolving Commitment on the date
requested for the making of such borrowing.

     IN WITNESS WHEREOF, this instrument is executed as of                                                                                 _, 2006.

	 	 	 	 	 
	 	RIATA ENERGY, INC.

a Texas corporation

 	 
	 	By:  	 	 
	 	 	N. Malone Mitchell, 3rd, President 	 
	 	 	 	 
	 

EXHIBIT H — Page — 2

	 	 	 	 	 

 

 

	 	 	 	 	 
	 	 	 
	 	 	 
	 	 	 
	 	 	 
	 

EXHIBIT I

[FORM OF OPINION – OUTSIDE COUNSEL]

Based on the foregoing, it is our opinion that:

	1.	 	Riata Energy, Inc., is a Texas corporation, duly organized, validly existing
and in good standing under the laws of the State of Texas.

	2.	 	The execution, delivery and performance by Borrower and Guarantors of each
Loan Document to which it is a party, and the borrowing and liabilities incurred
thereunder (1) have been duly authorized by all necessary action (corporate,
partnership or limited liability company) of Borrower and Guarantors, (2) do not (to
the best of our knowledge) contravene the terms of the agreements of Borrower or
Guarantors, (3) do not (to the best of our knowledge) require the approval or consent
of any trustee or the holders of any indebtedness of Borrower or Guarantors, (4) do
not (to the best of our knowledge) contravene any law, regulation, rule or order
binding on Borrower or Guarantors, and (5) do not (to the best of our knowledge)
contravene the provisions of or constitute a default under any agreement or instrument
to which Borrower or Guarantors are a party or by which Borrower or Guarantors may be
bound or affected. All actions, approvals and consents necessary to authorize the
execution, delivery and performance of the Loan Documents by Borrower and Guarantors
have occurred or been obtained.

	3.	 	No government approval or filing or registration with any governmental
authority is required for the execution, delivery and performance by Borrower or
Guarantors of the Loan Documents or in connection with any of the transactions
contemplated thereby.

	4.	 	The Loan Documents have been duly and validly executed and delivered by
Borrower and Guarantors in compliance with the laws of the State of Texas, and
constitute legal, valid and binding obligations of Borrower and Guarantors enforceable
against Borrower and Guarantors in accordance with their respective terms and
provisions, except that enforcement may
be limited by bankruptcy, insolvency, reorganization, arrangement, moratorium, or
similar laws, or by equitable principles, relating to or limiting the rights of
creditors generally.

	5.	 	There is, to the best of our knowledge, no private, judicial or governmental
action, lawsuit, claim, proceeding, inquiry or investigation pending or threatened
which involves Borrower or Guarantors, any of the Loan Documents, or the property

EXHIBIT I — Page 1

 

 

	 	 	covered by the Deed of Trust and Security Agreement, including but not limited to
eminent domain proceedings. In addition, to the best of our knowledge, after due
inquiry, no unsatisfied judgments have been entered or returned against the Borrower
or Guarantors.
	 
	6.	 	Each of the Deeds of Trust (as modified and amended by the modifications)
creates a valid lien upon Borrower’s interest in the property described therein and
imparts constructive notice of the lien to third parties.
	 
	 	 	EXHIBIT I — Page 2

 

 

Continuing and Unconditional Guaranty

	 	 	 	 
	Bank:

	 	 	Guarantor:
	 
	 	 	 
	Bank of America, N.A.

	 	 	 
	Banking Center:

	 	 	 
	700 Louisiana St.

	 	 	 
	Houston, Texas 77002-2700

	 	 	 
	 

	 	 	(Name and street address, including county)
	(Street address)
	 	 	 

     “Borrower”:      Riata Energy, Inc.

1. Guaranty. FOR VALUE RECEIVED, and to induce Bank of America, N.A. (Attn: Charles Patterson)
(“Bank”) to make loans or advances or to extend credit or other financial accommodations or
benefits, with or without security, to or for the account of Borrower, the undersigned “Guarantor”,
if more than one, then each of them jointly and severally, hereby irrevocably and unconditionally
guarantees to Bank the full and prompt payment when due, whether by acceleration or otherwise, of
any and all Liabilities (as hereinafter defined) of Borrower to Bank. This Guaranty is continuing
and unlimited as to the amount, and is cumulative to and does not supersede any other guaranties.

Guarantor further unconditionally guarantees the faithful, prompt and complete compliance by
Borrower with all Obligations (as hereinafter defined). The undertakings of Guarantor hereunder are
independent of the Liabilities and Obligations of Borrower and a separate action or actions for
payment, damages or performance may be brought or prosecuted against Guarantor, whether or not an
action is brought against Borrower or to realize upon the security for the Liabilities and/or
Obligations, whether or not Borrower is joined in any such action or actions, and whether or not
notice is given or demand is made upon Borrower.

Bank shall not be required to proceed first against Borrower, or any other person, or entity,
whether primarily or secondarily liable, or against any collateral held by it, before resorting to
Guarantor for payment, and Guarantor shall not be entitled to assert as a defense to the
enforceability of the Guaranty any defense of Borrower with respect to any Liabilities or
Obligations.

2. Paragraph Headings, Governing Law and Binding Effect. Guarantor agrees that the paragraph
headings in this Guaranty are for convenience only and that they will not limit any of the
provisions of this Guaranty. Guarantor further agrees that this Guaranty shall be deemed to have
been made in the State of Texas at Bank’s address indicated at the beginning of this Guaranty and
shall be governed by, and construed in accordance with, the laws of the State of Texas, and is
performable in the City and County of Texas at Bank’s address indicated at the beginning of this
Guaranty. In any litigation in connection with or to enforce this Guaranty or any other Loan
Documents, Guarantor, and each of them, irrevocably consent to and confer personal jurisdiction on
the courts of the State of Texas or the United States courts located within the State of Texas.
Nothing contained herein shall, however, prevent Bank from bringing any action or exercising any
rights within any other state or jurisdiction or from obtaining personal jurisdiction by any other
means available by applicable law. This Guaranty is binding upon Guarantor, his, their or its
executors, administrators, successors or assigns, and shall inure to the benefit of Bank, its
successors, indorsees or assigns. Anyone executing this Guaranty shall be bound by the terms
hereof without regard to execution by anyone else.

3. Definitions.

     A. “Guarantor” shall mean Guarantor or any one or more of them.

CONTINUING AND UNCONDITIONAL GUARANTY — Page 1

 

 

     B. “Liability” or “Liabilities” shall mean without limitation, all liabilities, overdrafts,
indebtedness, and obligations of Borrower and/or Guarantor to Bank, whether direct or indirect,
absolute or contingent, joint or several, secured or unsecured, due or not due, contractual or
tortious, liquidated or unliquidated, arising by operation of law or otherwise, now or hereafter
existing, or held or to be held by Bank for its own account or as agent for another or others,
whether created directly, indirectly, or acquired by assignment or otherwise, including but not
limited to all extensions or renewals thereof, and all sums payable under or by virtue thereof,
including without limitation, all amounts of principal and interest, all expenses (including
reasonable attorney’s fees and cost of collection) incurred in the collection thereof or the
enforcement of rights thereunder (including without limitation, any liability arising from failure
to comply with state or federal laws, rules and regulations concerning the control of hazardous
waste or substances at or with respect to any real estate securing any loan guaranteed hereby),
whether arising in the ordinary course of business or otherwise. If Borrower is a partnership,
corporation or other entity the term “Liability” or “Liabilities” as used herein shall include all
Liabilities to Bank of any successor entity or entities.

     C. “Loan Documents” shall mean all deeds to secure debt, deeds of trust, mortgages, security
agreements and other documents securing payment of the Liabilities and all notes and other
agreements, documents, and instruments evidencing or relating to the Liabilities and Obligations.

     D. “Obligation” or “Obligations” shall mean all terms, conditions, covenants, agreements and
undertakings of Borrower and/or Guarantor under all notes and other documents evidencing the
Liabilities, and under all deeds to secure debt, deeds of trust, mortgages, security agreements and
other agreements, documents and instruments executed in connection with the Liabilities or related
thereto.

4. Waivers by Guarantor. Guarantor waives notice of acceptance of this Guaranty, notice of any
Liabilities or Obligations to which it may apply, presentment, demand for payment, protest, notice
of dishonor or nonpayment of any Liabilities, notice of intent to accelerate, notice of
acceleration, and notice of any suit or the taking of other action by Bank against Borrower,
Guarantor or any other person, any applicable statute of limitations and any other notice to any
party liable on any Loan Document (including Guarantor).

Each Guarantor also hereby waives any claim, right or remedy which such Guarantor may now have or
hereafter acquire against Borrower that arises hereunder and/or from the performance by any other
Guarantor hereunder including, without limitation, any claim, remedy or right of subrogation,
reimbursement, exoneration, contribution, indemnification, or participation in any claim, right or
remedy of Bank against Borrower or against any security which Bank now has or hereafter acquires,
whether or not such claim, right or remedy arises in equity, under contract, by statute, under
common law or otherwise.

Guarantor also waives the benefits of any provision of law requiring that Bank exhaust any right or
remedy, or take any action, against Borrower, any Guarantor, any other person and/or property
including but not limited to the provisions of the Texas Civil Practice and Remedies Code §17.001,
Texas Rules of Civil Procedure Rule 31 and the Texas Business and Commerce Code Chapter 34, as
amended, or otherwise.

Bank may at any time and from time to time (whether before or after revocation or termination of
this Guaranty) without notice to Guarantor (except as required by law), without incurring
responsibility to Guarantor, without impairing, releasing or otherwise affecting the Obligations of
Guarantor, in whole or in part, and without the indorsement or execution by Guarantor of any
additional consent, waiver or guaranty: (a) change the manner, place or terms of payment, or change
or extend the time of or renew, or change any interest rate or alter any Liability or Obligation or
installment thereof, or any security therefor; (b) loan additional monies or extend additional
credit to Borrower, with or without security, thereby creating new Liabilities or Obligations the
payment or performance of which shall be guaranteed hereunder, and the Guaranty herein made shall
apply to the Liabilities and Obligations as so changed, extended, surrendered, realized upon or
otherwise altered; (c) sell, exchange, release, surrender, realize upon or otherwise deal with in
any manner and in any order any property at any time pledged or mortgaged to secure the Liabilities
or Obligations and any offset there against; (d) exercise or refrain from exercising any rights
against Borrower or others (including Guarantor) or act or refrain from acting in any other manner;
(e) settle or compromise any Liability or Obligation or any security therefor and subordinate the
payment of all or any part thereof to the payment of any Liability or Obligation of any other
parties primarily or secondarily liable on any of the Liabilities or Obligations; (f) release or
compromise any Liability of Guarantor hereunder or any Liability or Obligation of any other parties
primarily or secondarily liable on any of the Liabilities or Obligations; or (g) apply any sums
from any sources to any Liability without regard to any Liabilities remaining unpaid.

5. Subordination. Upon demand of Bank, Guarantor agrees that it will not demand, take or
receive from Borrower, by set-off or in any other manner, payment of any debt, now and at any time
or times hereafter owing by

CONTINUING AND UNCONDITIONAL GUARANTY — Page 2

 

 

Borrower to Guarantor unless and until all the Liabilities and Obligations shall have been fully
paid and performed, and any security interest, liens or encumbrances which Guarantor now has and
from time to time hereafter may have upon any of the assets of Borrower shall be made subordinate,
junior and inferior and postponed in priority, operation and effect to any security interest of
Bank in such assets.

6. Waivers by Bank. No delay on the part of Bank in exercising any of its options, powers or
rights, and no partial or single exercise thereof, shall constitute a waiver thereof. No waiver of
any of its rights hereunder, and no modification or amendment of this Guaranty, shall be deemed to
be made by Bank unless the same shall be in writing, duly signed on behalf of Bank; and each such
waiver, if any, shall apply only with respect to the specific instance involved, and shall in no
way impair the rights of Bank or the obligations of Guarantor to Bank in any other respect at any
other time.

7. Termination. This Guaranty shall be binding on each Guarantor until written notice of
revocation signed by such Guarantor or written notice of the death of such Guarantor shall have
been received by Bank, notwithstanding change in name, location, composition or structure of, or
the dissolution, termination or increase, decrease or change in personnel, owners or partners of
Borrower, or any one or more of Guarantors. No notice of revocation or termination hereof shall
affect in any manner rights arising under this Guaranty with respect to Liabilities or Obligations
that shall have been committed, created, contracted, assumed or incurred prior to receipt of such
written notice pursuant to any agreement entered into by Bank prior to receipt of such notice. The
sole effect of such notice of revocation or termination hereof shall be to exclude from this
Guaranty, Liabilities or Obligations thereafter arising that are unconnected with Liabilities or
Obligations theretofore arising or transactions entered into theretofore.

In the event of the death of a Guarantor, the liability of the estate of the deceased Guarantor
shall continue in full force and effect as to (i) the Liabilities existing at the date of death,
and any renewals or extensions thereof, and (ii) loans or advances made to or for the account of
Borrower after the date of death of the deceased Guarantor pursuant to a commitment made by Bank to
Borrower prior to the date of such death. As to all surviving Guarantors, this Guaranty shall
continue in full force and effect after the death of a Guarantor, not only as to the Liabilities
existing at that time, but also as to Liabilities thereafter incurred by Borrower to Bank.

8. Partial Invalidity and/or Enforceability of Guaranty. The unenforceability or invalidity of any
provision of this Guaranty shall not affect the enforceability or validity of any other provision
herein and the invalidity or unenforceability of any provision of any Loan Document as it may apply
to any person or circumstance shall not affect the enforceability or validity of such provision as
it may apply to other persons or circumstances.

In the event Bank is required to relinquish or return the payments, the collateral or the proceeds
thereof, in whole or in part, which had been previously applied to or retained for application
against any Liability, by reason of a proceeding arising under the Bankruptcy Code, or for any
other reason, this Guaranty shall automatically continue to be effective notwithstanding any
previous cancellation or release effected by Bank.

9. Change of Status. Guarantor will not become a party to a merger or consolidation with any other
company, except where Guarantor is the surviving corporation or entity, and all covenants under
this Guaranty are assumed by the surviving entity. Further, Guarantor may not change its legal
structure, without the written consent of Bank and all covenants under this Guaranty are assumed by
the new or surviving entity. Guarantor further agrees that this Guaranty shall be binding, legal
and enforceable against Guarantor in the event Borrower changes its name, status or type of entity.

10. Financial and Other Information. Guarantor agrees to furnish to Bank any and all financial
information and any other information regarding Guarantor and/or collateral requested in writing by
Bank within ten (10) days of the date of the request. Guarantor has made an independent
investigation of the financial condition and affairs of Borrower prior to entering into this
Guaranty, and Guarantor will continue to make such investigation; and in entering into this
Guaranty Guarantor has not relied upon any representation of Bank as to the financial condition,
operation or creditworthiness of Borrower. Guarantor further agrees that Bank shall have no duty
or responsibility now or hereafter to make any investigation or appraisal of Borrower on behalf of
Guarantor or to provide Guarantor with any credit or other information which may come to its
attention now or hereafter.

11. Notices. Notice shall be deemed reasonable if mailed postage prepaid at least five (5) days
before the related action to the address of Guarantor or Bank, at their respective addresses
indicated at the beginning of this Guaranty, or to such other address as any party may designate by
written notice to the other party. Each notice, request and demand shall be deemed given or made,
if sent by mail, upon the earlier of the date of receipt or five (5) days after deposit in the U.S.
Mail, first class postage prepaid, or if sent by any other means, upon delivery.

CONTINUING AND UNCONDITIONAL GUARANTY — Page 3

 

 

12. Guarantor Duties. Guarantor shall upon notice or demand by Bank promptly and with due
diligence pay all Liabilities and perform and satisfy all Obligations for the benefit of Bank in
the event of (a) the occurrence of any default under any Loan Documents; (b) the failure of any
Borrower or Guarantor to perform any obligation or pay any liability or indebtedness of any
Borrower or Guarantor to Bank, or to any affiliate of Bank, whether under any Note, Guaranty, or
any other agreement, now or hereafter existing, as and when due (whether upon demand, at maturity
or by acceleration); (c) the failure of any Borrower or Guarantor to pay or perform any other
liability, obligation or indebtedness of any Borrower or Guarantor to any other party; (d) the
death of any Borrower or Guarantor (if an individual); (e) the resignation or withdrawal of any
partner or a material owner/Guarantor of Borrower, as determined by Bank in its sole discretion;
(f) the commencement of a proceeding against any Borrower or Guarantor for dissolution or
liquidation, the voluntary or involuntary termination or dissolution of any Borrower or Guarantor
or the merger or consolidation of any Borrower or Guarantor with or into another entity; (g) the
insolvency, or the business failure of, or the appointment of a custodian, trustee, liquidator or
receiver for or of any of the property of, or the assignment for the benefit of creditors by, or
the filing of a petition under bankruptcy, insolvency or debtor’s relief law or the filing of a
petition for any adjustment of indebtedness, composition or extension by or against any Borrower or
Guarantor; (h) the sole determination by Bank that any representation or warranty to Bank in any
Loan Document or otherwise to Bank was untrue or materially misleading when made; (i) the failure
of Guarantor or Borrower to timely deliver such financial statements including tax returns and all
schedules, or other statements of condition or other information, as Bank shall request from time
to time; (j) the entry of a judgment against Borrower or Guarantor which Bank deems to be of a
material nature in the sole discretion of Bank; (k) the seizure or forfeiture of any of Borrower
or Guarantor’s property, or the issuance of any writ of possession, garnishment or attachment, or
any turnover order; (l) the sole determination by Bank that Guarantor or Borrower jointly or
severally, has suffered a material adverse change in its financial condition; (m) the determination
by Bank that for any reason it is insecure; (n) any lien or additional security interest being
placed upon any collateral which is security for any Loan Document; or (o) the failure of
Borrower’s business to comply with any law or regulation controlling the operation of Borrower’s
business.

13. Remedies. Upon the failure of Guarantor to fulfill its duty to pay all Liabilities and perform
and satisfy all Obligations as required hereunder, Bank shall have all of the remedies of a
creditor and, to the extent applicable, of a secured party, under all applicable law, and without
limiting the generality of the foregoing, Bank may, at its option and without notice or demand:
(a) declare any Liability due and payable at once; (b) take possession of any collateral pledged by
Borrower or Guarantor wherever located, and sell, resell, assign, transfer and deliver all or any
part of said collateral of Borrower or Guarantor at any public or private sale or otherwise dispose
of any or all of the collateral in its then condition, for cash or on credit or for future
delivery, and in connection therewith Bank may impose reasonable conditions upon any such sale, and
Bank, unless prohibited by law the provisions of which cannot be waived, may purchase all or any
part of said collateral to be sold, free from and discharged of all trusts, claims, rights or
redemption and equities of Borrower or Guarantor whatsoever; Guarantor acknowledges and agrees that
the sale of any collateral through any nationally recognized broker-dealer, investment banker or
any other method common in the securities industry shall be deemed a commercially reasonable sale
under the Uniform Commercial Code or any other equivalent statute or federal law, and expressly
waives notice thereof except as provided herein; and (c) set-off against any or all liabilities of
Guarantor all money owed by Bank or any of its agents or affiliates in any capacity to Guarantor
whether or not due, and also set-off against all other Liabilities of Guarantor to Bank all money
owed by Bank in any capacity to Guarantor, and if exercised by Bank, Bank shall be deemed to have
exercised such right of set-off and to have made a charge against any such money immediately upon
the occurrence of such default although made or entered on the books subsequent thereto.

Bank shall have a properly perfected security interest in all of Guarantor’s funds on deposit with
Bank to secure the balance of any Liabilities and/or Obligations that Guarantor may now or in the
future owe Bank. Bank is granted a contractual right of set-off and will not be liable for
dishonoring checks or withdrawals where the exercise of Bank’s contractual right of set-off or
security interest results in insufficient funds in Guarantor’s account. As authorized by law,
Guarantor grants to Bank this contractual right of set-off and security interest in all property of
Guarantor now or at anytime hereafter in the possession of Bank, including but not limited to any
joint account, special account, account by the entireties, tenancy in common, and all dividends and
distributions now or hereafter in the possession or control of Bank.

14. Attorney Fees, Cost and Expenses. Guarantor shall pay all costs of collection and reasonable
attorney’s fees, including reasonable attorney’s fees in connection with any suit, mediation or
arbitration proceeding, out of Court payment agreement, trial, appeal, bankruptcy proceedings or
otherwise, incurred or paid by Bank in enforcing the payment of any Liability or defending this
agreement.

CONTINUING AND UNCONDITIONAL GUARANTY — Page 4

 

 

15. Collateral. Bank at all times and from time to time shall have the right to require Guarantor
to deliver to Bank collateral satisfactory to Bank to secure Guarantor’s undertakings hereunder
and/or the Liabilities of Guarantor hereunder.

16. Preservation of Property. Bank shall not be bound to take any steps necessary to
preserve any rights in any property pledged as collateral to Bank to secure Borrower and/or
Guarantor’s Liabilities and Obligations as against prior parties who may be liable in connection
therewith, and Borrower and Guarantor hereby agree to take any such steps. Bank, nevertheless, at
any time, may (a) take any action it deems appropriate for the care or preservation of such
property or of any rights of Borrower and/or Guarantor or Bank therein; (b) demand, sue for,
collect or receive any money or property at any time due, payable or receivable on account of or in
exchange for any property pledged as collateral, to Bank to secure Borrower and/or Guarantor’s
Liabilities to Bank; (c) compromise and settle with any person liable on such property; or (d)
extend the time of payment or otherwise change the terms of the Loan Documents as to any party
liable on the Loan Documents, all without notice to, without incurring responsibility to, and
without affecting any of the Obligations or Liabilities of Guarantor.

17. ARBITRATION. ANY CONTROVERSY OR CLAIM BETWEEN OR AMONG THE PARTIES HERETO INCLUDING BUT NOT
LIMITED TO THOSE ARISING OUT OF OR RELATING TO THIS INSTRUMENT, AGREEMENT OR DOCUMENT OR ANY
RELATED INSTRUMENTS, AGREEMENTS OR DOCUMENTS, INCLUDING ANY CLAIM BASED ON OR ARISING FROM AN
ALLEGED TORT, SHALL BE DETERMINED BY BINDING ARBITRATION IN ACCORDANCE WITH THE FEDERAL ARBITRATION
ACT (OR IF NOT APPLICABLE, THE APPLICABLE STATE LAW), THE RULES OF PRACTICE AND PROCEDURE FOR THE
ARBITRATION OF COMMERCIAL DISPUTES OF J.A.M.S./ENDISPUTE OR ANY SUCCESSOR THEREOF (“J.A.M.S.”), AND
THE “SPECIAL RULES” SET FORTH BELOW. IN THE EVENT OF ANY INCONSISTENCY, THE SPECIAL RULES SHALL
CONTROL. JUDGMENT UPON ANY ARBITRATION AWARD MAY BE ENTERED IN ANY COURT HAVING JURISDICTION. ANY
PARTY TO THIS INSTRUMENT, AGREEMENT OR DOCUMENT MAY BRING AN ACTION, INCLUDING A SUMMARY OR
EXPEDITED PROCEEDING, TO COMPEL ARBITRATION OF ANY CONTROVERSY OR CLAIM TO WHICH THIS AGREEMENT
APPLIES IN ANY COURT HAVING JURISDICTION OVER SUCH ACTION.

     A. SPECIAL RULES. THE ARBITRATION SHALL BE CONDUCTED IN THE COUNTY OF ANY BORROWER’S
DOMICILE AT THE TIME OF THE EXECUTION OF THIS INSTRUMENT, AGREEMENT OR DOCUMENT AND ADMINISTERED BY
J.A.M.S. WHO WILL APPOINT AN ARBITRATOR; IF J.A.M.S. IS UNABLE OR LEGALLY PRECLUDED FROM
ADMINISTERING THE ARBITRATION, THEN THE AMERICAN ARBITRATION ASSOCIATION WILL SERVE. ALL
ARBITRATION HEARINGS WILL BE COMMENCED WITHIN 90 DAYS OF THE DEMAND FOR ARBITRATION; FURTHER, THE
ARBITRATOR SHALL ONLY, UPON A SHOWING OF CAUSE, BE PERMITTED TO EXTEND THE COMMENCEMENT OF SUCH
HEARING FOR UP TO AN ADDITIONAL 60 DAYS.

     B. RESERVATION OF RIGHTS. NOTHING IN THIS ARBITRATION PROVISION SHALL BE DEEMED TO
(I) LIMIT THE APPLICABILITY OF ANY OTHERWISE APPLICABLE STATUTES OF LIMITATION OR REPOSE AND ANY
WAIVERS CONTAINED IN THIS INSTRUMENT, AGREEMENT OR DOCUMENT; OR (II) BE A WAIVER BY BANK OF THE
PROTECTION AFFORDED TO IT BY 12 U.S.C. SEC. 91 OR ANY SUBSTANTIALLY EQUIVALENT STATE LAW; OR (III)
LIMIT THE RIGHT OF BANK HERETO (A) TO EXERCISE SELF HELP REMEDIES SUCH AS (BUT NOT LIMITED TO)
SETOFF, OR (B) TO FORECLOSE AGAINST ANY REAL OR PERSONAL PROPERTY COLLATERAL, OR (C) TO OBTAIN FROM
A COURT PROVISIONAL OR ANCILLARY REMEDIES SUCH AS (BUT NOT LIMITED TO) INJUNCTIVE RELIEF, WRIT OF
POSSESSION OR THE APPOINTMENT OF A RECEIVER. BANK MAY EXERCISE SUCH SELF HELP RIGHTS, FORECLOSE
UPON SUCH PROPERTY, OR OBTAIN SUCH PROVISIONAL OR ANCILLARY REMEDIES BEFORE, DURING OR AFTER THE
PENDENCY OF ANY ARBITRATION PROCEEDING BROUGHT PURSUANT TO THIS INSTRUMENT, AGREEMENT OR DOCUMENT.
NEITHER THIS EXERCISE OF SELF HELP REMEDIES NOR THE INSTITUTION OR MAINTENANCE OF AN ACTION FOR
FORECLOSURE OR PROVISIONAL OR ANCILLARY REMEDIES SHALL CONSTITUTE A WAIVER OF THE RIGHT OF ANY
PARTY, INCLUDING THE CLAIMANT IN ANY SUCH ACTION, TO ARBITRATE THE MERITS OF THE CONTROVERSY OR
CLAIM OCCASIONING RESORT TO SUCH REMEDIES.

18. Controlling Document. To the extent that this Continuing and Unconditional Guaranty conflicts
with or is in any way incompatible with any other Loan Document concerning this Obligation, any
promissory note shall control over any other document, and if such promissory note does not address
an issue, then each other document shall control to the extent that it deals most specifically with
an issue.

CONTINUING AND UNCONDITIONAL GUARANTY — Page 5

 

 

19. ADDITIONAL GUARANTY. This Continuing Guaranty and Unconditional Guaranty is given in addition
to and not in replacement of any prior guarantys delivered by Guarantor for the benefit of Bank or
its predecessors.

20. NOTICE OF FINAL AGREEMENT.

THIS WRITTEN CONTINUING AND UNCONDITIONAL GUARANTY REPRESENTS THE FINAL AGREEMENT BETWEEN THE
PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

IN WITNESS WHEREOF, the undersigned has caused this Guaranty to be executed on this
12th day of January 2006.

Bank of America, N.A.

			

	By:	 	_________________________
	Printed Name:	 	_________________________
			
	Title:	 	_________________________

Guarantor:

			
	By:	 	________________________________

CONTINUING AND UNCONDITIONAL GUARANTY — Page 6

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