EXHIBIT 10.6

                                ESCROW AGREEMENT

     ESCROW AGREEMENT ("Agreement") dated [Closing Date] is executed and
delivered by and among TREMISIS ENERGY ACQUISITION CORPORATION, a Delaware
corporation ("Tremisis"), LARRY E. LEE, AS THE RAM STOCKHOLDERS' REPRESENTATIVE,
being the representative of the former stockholders of RAM Energy, Inc., a
Delaware corporation (the "Representative"), and CONTINENTAL STOCK TRANSFER &
TRUST COMPANY, as escrow agent (the "Escrow Agent").

     Tremisis, RAM Energy, Inc. ("RAM"), the stockholders of RAM, and RAM Energy
Acquisition, Inc., a Delaware corporation and wholly-owned subsidiary of
Tremisis ("Merger Subsidiary"), are the parties to an Agreement and Plan of
Merger and Reorganization dated as of October 20, 2005 (the "Merger Agreement")
pursuant to which the Merger Subsidiary has merged with and into RAM so that RAM
has become a wholly-owned subsidiary of Tremisis. Pursuant to the Merger
Agreement, Tremisis is to be indemnified in certain respects. The parties desire
to establish an escrow fund as collateral security for the indemnification
obligations under the Merger Agreement. The Representative has been designated
pursuant to the Merger Agreement to represent all of the former stockholders of
RAM (the "Stockholders") and each Permitted Transferee (as hereinafter defined)
of the Stockholders (the Stockholders and all such Permitted Transferees are
hereinafter referred to collectively as the "Owners"), and to act on their
behalf for purposes of this Agreement. Capitalized terms used herein which are
not otherwise defined herein shall have the meanings ascribed to them in the
Merger Agreement.

     The parties agree as follows:

     1. (a) Concurrently with the execution hereof, each of the Stockholders is
delivering to the Escrow Agent, to be held in escrow pursuant to the terms of
this Agreement, stock certificates issued in the name of such Stockholder
representing twelve and one-half percent (12.5%) of the total number of shares
of Parent Common Stock received by such Stockholder pursuant to the Merger
Agreement, together with ten (10) assignments separate from certificate,
executed in blank by such Stockholder. The shares of Parent Common Stock
represented by the stock certificates so delivered by the Stockholders to the
Escrow Agent are herein referred to in the aggregate as the "Escrow Fund." The
Escrow Agent shall maintain a separate account for each Stockholder's, and
subsequent to any transfer permitted pursuant to Paragraph 1(e) hereof, each
Owner's, portion of the Escrow Fund.

         (b) The Escrow Agent hereby agrees to act as escrow agent and to hold,
safeguard and disburse the Escrow Fund pursuant to the terms and conditions
hereof. It shall treat the Escrow Fund as a trust fund in accordance with the
terms of this Agreement and not as the property of Tremisis. The Escrow Agent's
duties hereunder shall terminate upon its distribution of the entire Escrow Fund
in accordance with this Agreement.



         (c) Except as herein provided, the Owners shall retain all of their
rights as stockholders of Tremisis with respect to shares of Parent Common Stock
constituting the Escrow Fund during the period the Escrow Fund is held by the
Escrow Agent (the "Escrow Period"), including, without limitation, the right to
vote their shares of Parent Common Stock included in the Escrow Fund.

         (d) During the Escrow Period, all dividends payable in cash with
respect to the shares of Parent Common Stock included in the Escrow Fund shall
be paid to the Owners, but all dividends payable in stock or other non-cash
property ("Non-Cash Dividends") shall be delivered to the Escrow Agent to hold
in accordance with the terms hereof. As used herein, the term "Escrow Fund"
shall be deemed to include the Non-Cash Dividends distributed thereon, if any.

         (e) During the Escrow Period, no sale, transfer or other disposition
may be made of any or all of the shares of Parent Common Stock in the Escrow
Fund except (i) to a Permitted Transferee (as hereinafter defined), (ii) by
virtue of the laws of descent and distribution upon death of any Owner, or (iii)
pursuant to a qualified domestic relations order; provided, however, that such
permissive transfers may be implemented only upon the respective transferee's
written agreement to be bound by the terms and conditions of this Agreement. As
used in this Agreement, the term Permitted Transferee shall include: (x) members
of a Stockholder's "Immediate Family;" (y) an entity in which (A) a Stockholder
and/or members of a Stockholder's Immediate Family beneficially own 100% of such
entity's voting and non-voting equity securities, or (B) a Stockholder and/or a
member of such Stockholder's Immediate Family is a general partner and in which
such Stockholder and/or members of such Stockholder's Immediate Family
beneficially own 100% of all capital accounts of such entity; and (z) a
revocable trust established by a Stockholder during his lifetime for the benefit
of such Stockholder or for the exclusive benefit of all or any of such
Stockholder's Immediate Family. As used in this Agreement, the term "Immediate
Family" means, with respect to any Stockholder, a spouse, parents, lineal
descendants, the spouse of any lineal descendant, and brothers and sisters (or a
trust, all of whose current beneficiaries are members of an Immediate Family of
the Stockholder). In connection with and as a condition to each permitted
transfer, the Permitted Transferee shall deliver to the Escrow Agent an
assignment separate from certificate executed by the transferring Stockholder,
or where applicable, an order of a court of competent jurisdiction, evidencing
the transfer of shares to the Permitted Transferee, together with ten (10)
assignments separate from certificate executed in blank by the Permitted
Transferee with respect to the shares transferred to the Permitted Transferee.
Upon receipt of such documents, the Escrow Agent shall deliver to Tremisis the
original stock certificate out of which the assigned shares are to be
transferred, together with the executed assignment separate from certificate
executed by the transferring Stockholder, or a copy of the applicable court
order, and shall request that Tremisis issue new certificates representing (m)
the number of shares, if any, that continue to be owned by the transferring
Stockholder, and (n) the number of shares owned by the Permitted Transferee as
the result of such transfer. Tremisis, the transferring Stockholder and the
Permitted Transferee shall cooperate in all respects with the Escrow Agent in
documenting each such transfer and in effectuating the result intended to be
accomplished thereby. During the Escrow Period, no Owner shall pledge

                                       2


or grant a security interest in such Owner's shares of Parent Common Stock
included in the Escrow Fund or grant a security interest in their rights under
this Agreement.

     2. (a) Tremisis, acting through the current or former member of Tremisis's
Board of Directors who has been appointed by Tremisis to take all necessary
actions and make all decisions on behalf of Tremisis with respect to its rights
to indemnification under the Merger Agreement (the "Committee"), may make a
claim for indemnification pursuant to the Merger Agreement ("Indemnity Claim")
against the Escrow Fund by giving notice (a "Notice") to the Representative
(with a copy to the Escrow Agent) specifying (i) the covenant, representation,
warranty, agreement, undertaking or obligation contained in the Merger Agreement
which it asserts has been breached or otherwise entitles Tremisis to
indemnification, (ii) in reasonable detail, the nature and dollar amount of any
Indemnity Claim, and (iii) whether the Indemnity Claim results from a Third
Party Claim against Tremisis. The Committee also shall deliver to the Escrow
Agent (with a copy to the Representative), concurrently with its delivery to the
Escrow Agent of the Notice, a certification as to the date on which the Notice
was delivered to the Representative.

         (b) If the Representative shall give a notice to the Committee (with a
copy to the Escrow Agent) (a "Counter Notice"), within 30 days following the
date of receipt (as specified in the Committee's certification) by the
Representative of a copy of the Notice, disputing whether the Indemnity Claim is
indemnifiable under the Merger Agreement, the Committee and the Representative
shall attempt to resolve such dispute by voluntary settlement as provided in
paragraph 2(c) below. If no Counter Notice with respect to an Indemnity Claim is
received by the Escrow Agent from the Representative within such 30-day period,
the Indemnity Claim shall be deemed to be an Established Claim (as hereinafter
defined) for purposes of this Agreement.

         (c) If the Representative delivers a Counter Notice to the Escrow
Agent, the Committee and the Representative shall, during the period of 60 days
following the delivery of such Counter Notice or such greater period of time as
the parties may agree to in writing (with a copy to the Escrow Agent), attempt
to resolve the dispute with respect to which the Counter Notice was given. If
the Committee and the Representative shall reach a settlement with respect to
any such dispute, they shall jointly deliver written notice of such settlement
to the Escrow Agent specifying the terms thereof. If the Committee and the
Representative shall be unable to reach a settlement with respect to a dispute,
such dispute shall be resolved by arbitration pursuant to paragraph 2(d) below.

         (d) If the Committee and the Representative cannot resolve a dispute
prior to expiration of the 60-day period referred to in paragraph 2(c) above (or
such longer period as the parties may have agreed to in writing), then such
dispute shall be submitted (and either party may submit such dispute) for
arbitration before a single arbitrator in Dallas, Texas, in accordance with the
commercial arbitration rules of the American Arbitration Association then in
effect and the provisions of Section 10.12 of the Merger Agreement to the extent
that such provisions do not conflict with the provisions of this paragraph. The
Committee and the Representative shall attempt to

                                       3


agree upon an arbitrator; if they shall be unable to agree upon an arbitrator
within 10 days after the dispute is submitted for arbitration, then either the
Committee or the Representative, upon written notice to the other, may apply for
appointment of such arbitrator by the American Arbitration Association. Each
party shall pay the fees and expenses of counsel used by it and 50% of the fees
and expenses of the arbitrator and of other expenses of the arbitration. The
arbitrator shall render his decision within 90 days after his appointment and
may award costs to either the Committee or the Representative if, in his sole
opinion reasonably exercised, the claims made by any other party had no
reasonable basis and were arbitrary and capricious. Such decision and award
shall be in writing and shall be final and conclusive on the parties, and
counterpart copies thereof shall be delivered to each of the parties. Judgment
may be obtained on the decision of the arbitrator so rendered in any Oklahoma
state sitting in Oklahoma or Tulsa County, or any federal court sitting in
Oklahoma having jurisdiction, and may be enforced in accordance with the law of
the State of Oklahoma. If the arbitrator shall fail to render his decision or
award within such 90-day period, either the Committee or the Representative may
apply to any Oklahoma state court sitting in Oklahoma or Tulsa County, or any
federal court sitting in Oklahoma then having jurisdiction, by action,
proceeding or otherwise, as may be proper to determine the matter in dispute
consistently with the provisions of this Agreement. The parties consent to the
exclusive jurisdiction of the Oklahoma courts sitting in Oklahoma or Tulsa
County, Oklahoma, or any federal court having jurisdiction and sitting in
Oklahoma, for this purpose. The prevailing party (or either party, in the case
of a decision or award rendered in part for each party) shall send a copy of the
arbitration decision or of any judgment of the court to the Escrow Agent.

         (e) As used in this Agreement, "Established Claim" means any (i)
Indemnification Claim deemed established pursuant to the last sentence of
paragraph 2(b) above, (ii) Indemnification Claim resolved in favor of Tremisis
by settlement pursuant to paragraph 2(c) above, resulting in a dollar award to
Tremisis, (iii) Indemnification Claim established by the decision of an
arbitrator pursuant to paragraph 2(d) above, resulting in a dollar award to
Tremisis, (iv) Third Party Claim which has been sustained by a final
determination (after exhaustion of any appeals) of a court of competent
jurisdiction, or (v) Third Party Claim which the Committee and the
Representative have jointly notified the Escrow Agent has been settled in
accordance with the provisions of the Merger Agreement.

         (f) (i) Promptly after an Indemnity Claim becomes an Established Claim,
the Committee and the Representative shall jointly deliver a notice to the
Escrow Agent (a "Joint Notice") directing the Escrow Agent to pay to Tremisis,
and the Escrow Agent promptly shall pay to Tremisis, an amount equal to the
aggregate dollar amount of the Established Claim (or, if at such time there
remains in the Escrow Fund less than the full amount so payable, the full amount
remaining in the Escrow Fund).


               (ii) Payment of an Established Claim shall be made in shares of
Parent Common Stock, pro rata from the account maintained on behalf of each
Owner. For purposes of each payment, such shares shall be valued at the "Fair
Market Value" (as defined below). However, in no event shall the Escrow Agent be
required to calculate

                                       4


Fair Market Value or make a determination of the number of shares to be
delivered to Tremisis in satisfaction of any Established Claim; rather, such
calculation shall be included in and made part of the Joint Notice. The Escrow
Agent shall transfer to Tremisis out of the Escrow Fund that number of shares of
Parent Common Stock necessary to satisfy each Established Claim, as set out in
the Joint Notice. Any dispute between the Committee and the Representative
concerning the calculation of Fair Market Value or the number of shares
necessary to satisfy any Established Claim, or any other dispute regarding a
Joint Notice, shall be resolved between the Committee and the Representative in
accordance with the procedures specified in paragraph 2(d) above, and shall not
involve the Escrow Agent. Each transfer of shares in satisfaction of an
Established Claim shall be made by the Escrow Agent delivering to Tremisis one
or more stock certificates held in each Owner's account evidencing not less than
such Owner's pro rata portion of the aggregate number of shares specified in the
Joint Notice, together with assignments separate from certificate executed in
blank by such Owner and completed by the Escrow Agent in accordance with
instructions included in the Joint Notice. Upon receipt of the stock
certificates and assignments, Tremisis shall deliver to the Escrow Agent new
certificates representing the number of shares owned by each Owner after such
payment. The parties hereto (other than the Escrow Agent) agree that the
foregoing right to make payments of Established Claims in shares of Parent
Common Stock may be made notwithstanding any other agreements restricting or
limiting the ability of any Owner to sell any shares of Tremisis stock or
otherwise. The Committee and the Representative shall be required to exercise
utmost good faith in all matters relating to the preparation and delivery of
each Joint Notice. As used herein, "Fair Market Value" means the average
reported closing price for the Parent Common Stock for the ten trading days
ending on the last trading day prior to the day the Established Claim is paid.

     (iii) Notwithstanding anything herein to the contrary, at such time as an
Indemnification Claim has become an Established Claim, the Representative shall
have the right to substitute for the Escrow Shares that otherwise would be paid
in satisfaction of such claim (the "Claim Shares"), cash in an amount equal to
the Fair Market Value of the Claim Shares ("Substituted Cash"). In such event
(i) the Joint Notice shall include a statement describing the substitution of
Substituted Cash for the Claim Shares, and (ii) substantially contemporaneously
with the delivery of such Joint Notice, the Representative shall cause currently
available funds to be delivered to the Escrow Agent in an amount equal to the
Substituted Cash. Upon receipt of such Joint Notice and Substituted Cash, the
Escrow Agent shall (y) in payment of the Established Claim described in the
Joint Notice, deliver the Substituted Cash to Tremisis in lieu of the Claim
Shares, and (z) cause the Claim Shares to be returned to the Representative.

     3. On the first Business Day after June 30, 2007, upon receipt of a Joint
Notice, the Escrow Agent shall distribute and deliver to each Owner certificates
representing the shares of Parent Common Stock then in such Owner's account in
the Escrow Fund, unless at such time there are any Indemnity Claims with respect
to which Notices have been received but which have not been resolved pursuant to
Section 2 hereof or in respect of which the Escrow Agent has not been notified
of, and received a copy of, a final determination (after exhaustion of any
appeals) by a court of competent

                                       5


jurisdiction, as the case may be (in either case, "Pending Claims"), and which,
if resolved or finally determined in favor of Tremisis, would result in a
payment to Tremisis, in which case the Escrow Agent shall retain, and the total
amount of such distributions to such Owner shall be reduced by, the "Pending
Claims Reserve" (as hereafter defined). The Committee shall certify to the
Escrow Agent the Fair Market Value to be used in calculating the Pending Claims
Reserve and the number of shares of Parent Common Stock to be retained therefor.
Thereafter, if any Pending Claim becomes an Established Claim, the Committee and
the Representative shall deliver to the Escrow Agent a Joint Notice directing
the Escrow Agent to pay to Tremisis an amount in respect thereof determined in
accordance with paragraph 2(f) above, and to deliver to each Owner shares of
Parent Common Stock then in such owner's account in the Escrow Fund having a
Fair Market Value equal to the amount by which the remaining portion of his
account in the Escrow Fund exceeds the then Pending Claims Reserve (determined
as set forth below), all as specified in a Joint Notice. If any Pending Claim is
resolved against Tremisis, the Committee and the Representative shall deliver to
the Escrow Agent a Joint Notice directing the Escrow Agent to pay to each Owner
the amount by which the remaining portion of his account in the Escrow Fund
exceeds the then Pending Claims Reserve. Upon resolution of all Pending Claims,
the Committee and the Representative shall deliver to the Escrow Agent a Joint
Notice directing the Escrow Agent shall pay to such Owner the remaining portion
of his or her account in the Escrow Fund.

     "Pending Claims" shall automatically include the Great Plains Claim (as
defined in the Merger Agreement) if same has not been adjudicated, settled,
dismissed or otherwise resolved in its entirety with respect to RAM and its
subsidiaries and affiliates prior to June 30, 2007.

     As used herein, the "Pending Claims Reserve" shall mean, at the time any
such determination is made, that number of shares of Parent Common Stock in the
Escrow Fund having a Fair Market Value equal to (i) the sum of the aggregate
dollar amounts claimed to be due with respect to all Pending Claims (as shown in
the Notices of such Claims), other than the Great Plains Claim, plus (ii) (a)
the aggregate dollar amount of the potential liability of RAM and its
subsidiaries and affiliates in connection with the Great Plains Claim, if such
potential liability is reasonably quantifiable as of June 30, 2007 or (b) if
such potential liability is not reasonably quantifiable, the lesser of (1) 50%
of the number of shares originally constituting the Escrow Fund and (2) the
number of shares contained in the Escrow Fund that are not otherwise subject to
the Pending Claims Reserve and would be otherwise releasable to the
Stockholders.

     4. The Escrow Agent, the Committee and the Representative shall cooperate
in all respects with one another in the calculation of any amounts determined to
be payable to Tremisis and the Owners in accordance with this Agreement and in
implementing the procedures necessary to effect such payments.

     5. (a) The Escrow Agent undertakes to perform only such duties as are
expressly set forth herein. It is understood that the Escrow Agent is not a
trustee or fiduciary and is acting hereunder merely in a ministerial capacity.

                                       6


         (b) The Escrow Agent shall not be liable for any action taken or
omitted by it in good faith and in the exercise of its own best judgment, and
may rely conclusively and shall be protected in acting upon any order, notice,
demand, certificate, opinion or advice of counsel (including counsel chosen by
the Escrow Agent), statement, instrument, report or other paper or document (not
only as to its due execution and the validity and effectiveness of its
provisions, but also as to the truth and acceptability of any information
therein contained) which is believed by the Escrow Agent to be genuine and to be
signed or presented by the proper person or persons. The Escrow Agent shall not
be bound by any notice or demand, or any waiver, modification, termination or
rescission of this Agreement unless evidenced by a writing delivered to the
Escrow Agent signed by the proper party or parties and, if the duties or rights
of the Escrow Agent are affected, unless it shall have given its prior written
consent thereto.

         (c) The Escrow Agent's sole responsibility upon receipt of any notice
requiring any payment to Tremisis pursuant to the terms of this Agreement or, if
such notice is disputed by the Committee or the Representative, the settlement
with respect to any such dispute, whether by virtue of joint resolution,
arbitration or determination of a court of competent jurisdiction, is to pay to
Tremisis the amount specified in such notice, and the Escrow Agent shall have no
duty to determine the validity, authenticity or enforceability of any
specification or certification made in such notice.

         (d) The Escrow Agent shall not be liable for any action taken by it in
good faith and believed by it to be authorized or within the rights or powers
conferred upon it by this Agreement, and may consult with counsel of its own
choice and shall have full and complete authorization and indemnification under
Section 5(g), below, for any action taken or suffered by it hereunder in good
faith and in accordance with the opinion of such counsel.

         (e) The Escrow Agent may resign at any time and be discharged from its
duties as escrow agent hereunder by its giving the other parties hereto written
notice and such resignation shall become effective as hereinafter provided. Such
resignation shall become effective at such time that the Escrow Agent shall turn
over the Escrow Fund to a successor escrow agent appointed jointly by the
Committee and the Representative. If no new escrow agent is so appointed within
the 60 day period following the giving of such notice of resignation, the Escrow
Agent may deposit the Escrow Fund with any court it reasonably deems
appropriate.

         (f) In the event of a dispute between the parties as to the proper
disposition of the Escrow Fund, the Escrow Agent shall be entitled (but not
required) to deliver the Escrow Fund into the United States District Court for
the Southern District of New York and, upon giving notice to the Committee and
the Representative of such action, shall thereupon be relieved of all further
responsibility and liability.

         (g) The Escrow Agent shall be indemnified and held harmless by Tremisis
from and against any expenses, including counsel fees and disbursements, or

                                       7


loss suffered by the Escrow Agent in connection with any action, suit or other
proceeding involving any claim which in any way, directly or indirectly, arises
out of or relates to this Agreement, the services of the Escrow Agent hereunder,
or the Escrow Fund held by it hereunder, other than expenses or losses arising
from the gross negligence or willful misconduct of the Escrow Agent. Promptly
after the receipt by the Escrow Agent of notice of any demand or claim or the
commencement of any action, suit or proceeding, the Escrow Agent shall notify
the other parties hereto in writing. In the event of the receipt of such notice,
the Escrow Agent, in its sole discretion, may commence an action in the nature
of interpleader in an appropriate court to determine ownership or disposition of
the Escrow Fund or it may deposit the Escrow Fund with the clerk of any
appropriate court and be relieved of any liability with respect thereto or it
may retain the Escrow Fund pending receipt of a final, non-appealable order of a
court having jurisdiction over all of the parties hereto directing to whom and
under what circumstances the Escrow Fund are to be disbursed and delivered.

         (h) The Escrow Agent shall be entitled to reasonable compensation from
Tremisis for all services rendered by it hereunder. The Escrow Agent shall also
be entitled to reimbursement from Tremisis for all expenses paid or incurred by
it in the administration of its duties hereunder including, but not limited to,
all counsel, advisors' and agents' fees and disbursements and all taxes or other
governmental charges.


         (i) From time to time on and after the date hereof, the Committee and
the Representative shall deliver or cause to be delivered to the Escrow Agent
such further documents and instruments and shall do or cause to be done such
further acts as the Escrow Agent shall reasonably request to carry out more
effectively the provisions and purposes of this Agreement, to evidence
compliance herewith or to assure itself that it is protected in acting
hereunder.

         (j) Notwithstanding anything herein to the contrary, the Escrow Agent
shall not be relieved from liability hereunder for its own gross negligence or
its own willful misconduct.

     6. This Agreement expressly sets forth all the duties of the Escrow Agent
with respect to any and all matters pertinent hereto. No implied duties or
obligations shall be read into this Agreement against the Escrow Agent. The
Escrow Agent shall not be bound by the provisions of any agreement among the
parties hereto except this Agreement and shall have no duty to inquire into the
terms and conditions of any agreement made or entered into in connection with
this Agreement, including, without limitation, the Merger Agreement.

     7. This Agreement shall inure to the benefit of and be binding upon the
parties and their respective heirs, successors, assigns and legal
representatives, shall be governed by and construed in accordance with the law
of Delaware applicable to contracts made and to be performed therein except that
issues relating to the rights and obligations of the Escrow Agent shall be
governed by and construed in accordance with the law of New York applicable to
contracts made and to be performed therein. This

                                       8


Agreement cannot be changed or terminated except by a writing signed by the
Committee, the Representative and the Escrow Agent.

     8. The Committee and the Representative each hereby consents to the
exclusive jurisdiction of the Oklahoma state courts sitting in Oklahoma or Tulsa
County and federal courts sitting in Oklahoma with respect to any claim or
controversy arising out of this Agreement. Service of process in any action or
proceeding brought against the Committee or the Representative in respect of any
such claim or controversy may be made upon it by registered mail, postage
prepaid, return receipt requested, at the address specified in Section 9, with a
copy delivered by nationally recognized overnight carrier to Graubard Miller,
The Chrysler Building, 405 Lexington Avenue, New York, N.Y. 10174-1901,
Attention: David Alan Miller, Esq.

     9. All notices and other communications under this Agreement shall be in
writing and shall be deemed given if given by hand or delivered by nationally
recognized overnight carrier, or if given by telecopier and confirmed by mail
(registered or certified mail, postage prepaid, return receipt requested), to
the respective parties as follows:

          A.      If to the Committee, to it at
                  c/o Tremisis Energy Acquisition Corporation
                  1775 Broadway, Suite 604
                  New York, New York 10019
                  Attention: Lawrence S. Coben
                  Telecopier No.: 212-253-4047

                  with a copy to:

                  Graubard Miller
                  The Chrysler Building
                  405 Lexington Avenue
                  New York, New York  10174-1901
                  Attention:  David Alan Miller, Esq.
                  Telecopier No.: 212-818-8881

          B.      If to the Representative, to him at

                  Larry E. Lee
                  Meridian Tower, Suite 650
                  5100 East Skelly Drive
                  Tulsa, OK 74135
                  Telecopier No.: 918-663-9214

                  with a copy to:

                  C. David Stinson


                                       9


                  McAfee & Taft, A Professional Corporation
                  211 North Robinson, 10th Floor Oklahoma
                  City, Oklahoma 73102-7103 Telecopier No.:
                  405-235-9439

          C.      If to the Escrow Agent, to it at:

                  Continental Stock Transfer & Trust Company
                  2 Broadway
                  New York, New York 10004
                  Attention: Steven G. Nelson
                  Telecopier No.: 212-509-5150

or to such other person or address as any of the parties hereto shall specify by
notice in writing to all the other parties hereto.

     10. (a) If this Agreement requires a party to deliver any notice or other
document, and such party refuses to do so, the matter shall be submitted to
arbitration pursuant to paragraph 3(d) of this Agreement.

         (b) All notices delivered to the Escrow Agent shall refer to the
provision of this Agreement under which such notice is being delivered and, if
applicable, shall clearly specify the aggregate dollar amount due and payable to
Tremisis.

         (c) This Agreement may be executed in any number of counterparts, each
of which shall be deemed to be an original instrument and all of which together
shall constitute a single agreement.

     IN WITNESS WHEREOF, each of the parties hereto has duly executed this
Agreement on the date first above written.



                                         TREMISIS ENERGY ACQUISITION CORPORATION

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


                                         THE REPRESENTATIVE

                                         ---------------------------------------
                                         Name: Larry E. Lee




                                       10


                                         ESCROW AGENT

                                         CONTINENTAL STOCK TRANSFER &
                                           TRUST COMPANY


                                         By:
                                             -----------------------------------
                                         Name:  Steven G. Nelson
                                         Title: Chairman




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