Document:

EXHIBIT 4.2

[FACE OF CERTIFICATE]

NUMBER
C

COMMON STOCK

[LOGO] RAM Energy Resources, Inc.
INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

SHARES

CUSIP 75130P 10 9
SEE REVERSE FOR CERTAIN DEFINITIONS

THIS CERTIFIES THAT:
is the owner of

FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF $.0001 PAR VALUE EACH OF
RAM Energy Resources, Inc.

transferable on the books of the Corporation in person or by attorney upon
surrender of this certificate duly endorsed or assigned. This certificate is not
valid until countersigned by the Transfer Agent.

WITNESS the facsimile seal of the Corporation and the facsimile signatures of
its duly authorized officers.

DATED:

/sig/
SECRETARY

[SEAL]

/sig/
PRESIDENT

COUNTERSIGNED:
CONTINENTAL STOCK TRANSFER & TRUST COMPANY
(JERSEY CITY, NJ)
TRANSFER AGENT
BY
AUTHORIZED OFFICER

[REVERSE OF CERTIFICATE]

RAM ENERGY RESOURCES, INC.

The Corporation will furnish without charge to each stockholder who so requests
the powers, designations, preferences and relative, participating, optional or
other special rights of each class of stock or series thereof of the Corporation
and the qualifications, limitations, or restrictions of such preferences and/or
rights.

The following abbreviations, when used in the inscription on the face of this
certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common
TEN ENT - as tenants by the entireties
JT TEN - as joint tenants with right of survivorship and not as tenants in
common

UNIF GIFT MIN ACT-- .....(Cust)..... Custodian .....(Minor)..... under Uniform
Gifts to Minors Act .....(State).....

Additional abbreviations may also be used though not in the above list.

For Value Received, hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE
(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

Shares of the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint

Attorney to transfer the said stock on the books of the within named Corporation
with full power of substitution in the premises.

Dated

NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION
OR ENLARGEMENT OR ANY CHANGE WHATSOEVER.

Signature(s) Guaranteed:

THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION
(BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH
MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO
S.E.C. RULE 17AD-15).

KEEP THIS CERTIFICATE IN A SAFE PLACE. IF IT IS LOST, STOLEN OR DESTROYED THE
COMPANY WILL REQUIRE A BOND OF INDEMNITY AS A CONDITION TO THE ISSUANCE OF A
REPLACEMENT CERTIFICATE.EXHIBIT 4.3

[FACE OF CERTIFICATE]

NUMBER
W

RAM Energy Resources, Inc.
INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE
WARRANT

WARRANTS
CUSIP 75130P 11 7

THIS CERTIFIES THAT, for value received
is the registered holder of a Warrant or

Warrants expiring May 11, 2008 (the "Warrant") to purchase one fully paid and
non-assessable share of Common Stock, par value $.0001 per share ("Shares"), of
RAM Energy Resources, Inc., a Delaware corporation (the "Company"), for each
Warrant evidenced by this Warrant Certificate. The Warrant entitles the holder
thereof to purchase from the Company, such number of Shares of the Company at
the price of $5.00 per share, upon surrender of this Warrant Certificate and
payment of the Warrant Price at the office or agency of the Warrant Agent,
Continental Stock Transfer & Trust Company (such payment to be made by check
made payable to the Warrant Agent), but only subject to the conditions set forth
herein and in the Warrant Agreement between the Company and Continental Stock
Transfer & Trust Company. The Warrant Agreement provides that upon the
occurrence of certain events the Warrant Price and the number of Warrant Shares
purchasable hereunder, set forth on the face hereof, may, subject to certain
conditions, be adjusted. The term Warrant Price as used in this Warrant
Certificate refers to the price per Share at which Shares may be purchased at
the time the Warrant is exercised. No fraction of a Share will be issued upon
any exercise of a Warrant. If the holder of a Warrant would be entitled to
receive a fraction of a Share upon any exercise of a Warrant, the Company shall,
upon such exercise, round up to the nearest whole number the number of Shares to
be issued to such holder. Upon any exercise of the Warrant for less than the
total number of full Shares provided for herein, there shall be issued to the
registered holder hereof or his assignee a new Warrant Certificate covering the
number of Shares for which the Warrant has not been exercised. Warrant
Certificates, when surrendered at the office or agency of the Warrant Agent by
the registered holder hereof in person or by attorney duly authorized in
writing, may be exchanged in the manner and subject to the limitations provided
in the Warrant Agreement, but without payment of any service charge, for another
Warrant Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants. Upon due presentment for registration of
transfer of the Warrant Certificate at the office or agency of the Warrant
Agent, a new Warrant Certificate or Warrant Certificates of like tenor and
evidencing in the aggregate a like number of Warrants shall be issued to the
transferee in exchange for this Warrant Certificate, subject to the limitations
provided in the Warrant Agreement, without charge except for any applicable tax
or other governmental charge. The Company and the Warrant Agent may deem and
treat the registered holder as the absolute owner of this Warrant Certificate
(notwithstanding any notation of ownership or other writing hereon made by
anyone), for the purpose of any exercise hereof, of any distribution to the
registered holder, and for all other purposes, and neither the Company nor the
Warrant Agent shall be affected by any notice to the contrary. This Warrant does
not entitle the registered holder to any of the rights of a stockholder of the
Company. The Company reserves the right to call the Warrant, at any time prior
to its exercise, with a notice of call in writing to the holders of record of
the Warrant, giving 30 days' notice of such call at any time if the last sale
price of the Shares has been at least $8.50 per share on each of 20 trading days
within any 30 trading day period ending on the third business day prior to the
date on which notice of such call is given. The call price of the Warrants is to
be $.01 per Warrant. Any Warrant either not exercised or tendered back to the
Company by the end of the date specified in the notice of call shall be canceled
on the books of the Company and have no further value except for the $.01 call
price.

Dated:

COUNTERSIGNED
CONTINENTAL STOCK TRANSFER & TRUST COMPANY
AS WARRANT AGENT
BY:
AUTHORIZED OFFICER

[SEAL]

By:
/sig/
PRESIDENT

By:
/sig/
SECRETARY

[REVERSE OF CERTIFICATE]

SUBSCRIPTION FORM
To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned Registered Holder irrevocably elects to exercise _____ Warrants
represented by this Warrant Certificate, and to purchase the shares of Common
Stock issuable upon the exercise of such Warrants, and requests that
Certificates for such shares shall be issued in the name of

(PLEASE TYPE OR PRINT NAME AND ADDRESS)
(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to

(PLEASE PRINT OR TYPE NAME AND ADDRESS)

and, if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below:

Dated:

(SIGNATURE)
(ADDRESS)
(TAX IDENTIFICATION NUMBER)

ASSIGNMENT
To Be Executed by the Registered Holder in Order to Assign Warrants

For Value Received, _____ hereby sell, assign, and transfer unto

(PLEASE TYPE OR PRINT NAME AND ADDRESS)
(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to

(PLEASE PRINT OR TYPE NAME AND ADDRESS)

of the Warrants represented by this Warrant Certificate, and hereby irrevocably
constitute and appoint _____ Attorney to transfer this Warrant Certificate on
the books of the Company, with full power of substitution in the premises.

Dated:

(SIGNATURE)

THE SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE
GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.EXHIBIT 10.9.1

                AMENDMENT NO. 1 TO REGISTRATION RIGHTS AGREEMENT

     This Amendment No. 1 to Registration Rights Agreement ("Amendment") is
entered into as of May 8, 2006 by and among Tremisis Energy Acquisition
Corporation, a Delaware corporation (the "Company"), and the undersigned parties
listed under Investors on the signature page hereto (each, an "Investor" and
collectively, the "Investors").

     WHEREAS, the Investors and the Company previously entered into a
Registration Rights Agreement dated as of the 27th day of April, 2004 (the
"Agreement") pursuant to which they were granted certain registration rights
with respect to their shares of common stock of the Company (capitalized terms
used herein and not otherwise defined shall have the meanings ascribed to them
in the Agreement);

     WHEREAS, on the date hereof, the Company is consummating its merger with
RAM Energy Inc., a Delaware corporation ("RAM"), and in connection therewith is
entering into a registration rights agreement ("RAM Agreement") with the former
stockholders of RAM ("RAM Insiders") granting them certain registration rights
with respect to the shares of common stock of the Company they will receive in
the merger;

     WHEREAS, the Company has requested that the Investors modify certain of the
registration rights previously granted to them in the Agreement in order to
ensure that such rights do not conflict with the new registration rights granted
to the RAM Insiders in the RAM Agreement.

     NOW, THEREORE, in consideration of the mutual covenants and agreements set
forth herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree as
follows:

     1. Section 2.2.2(ii) of the Agreement is hereby amended to read as follows:

          "If the registration is a "demand" registration undertaken at the
          demand of persons other than the holders of Registrable Securities
          pursuant to written contractual arrangements with such persons, (A)
          first, the shares of Common Stock for the account of the demanding
          persons that can be sold without exceeding the Maximum Number of
          Shares; (B) second, to the extent that the Maximum Number of Shares
          has not been reached under the foregoing clause (A), the shares of
          Common Stock or other securities that the Company desires to sell that
          can be sold without exceeding the Maximum Number of Shares; and (C)
          third, to the extent that the Maximum Number of Shares has not been
          reached under the foregoing clauses (A) and (B), the shares of Common
          Stock, if any, including the Registrable Securities, as to which
          registration has been requested pursuant to written contractual
          piggy-back registration rights of security holders (pro rata in
          accordance with the number of shares of Common Stock which each such
          person has actually requested to be included in such registration,
          regardless of the number of shares of Common Stock with respect to
          which such persons have the right to request such inclusion."

     2. In consideration of the Investors agreeing to the foregoing amendment,
the Company agrees that the Investors shall be entitled to "piggy-back" their
Registrable Securities on any registration statement filed by the Company (a)
under Section 2.3 of the RAM Agreement and (b) in connection with a
non-underwritten offering under Section 2.1 of the RAM Agreement, even if such
registration statements are filed prior to the Release Date. These piggy-back
rights are in addition to those set forth in Section 2.2.1 of the Agreement
(which apply only after the Release Date), and shall otherwise be on the same
terms as set forth in Section 2.2 of the Agreement. These additional piggy-back
rights shall in no way modify the Investors' obligations under their escrow
agreement with the Company and the Investors acknowledge that their escrowed
shares shall remain in escrow under the terms of such escrow agreement even if
their shares are registered prior to the Release Date.

<PAGE>

     IN WITNESS WHEREOF, the parties have caused this Amendment to Registration
Rights Agreement to be executed and delivered by their duly authorized
representatives as of the date first above written.

                                 TREMISIS ENERGY
                                 ACQUISITION CORPORATION,
                                 a Delaware corporation

                                 By:   /s/ Lawrence S. Cohen
                                 Name:    Lawrence S. Cohen
                                 Title:   Chairman of the Board

                                 INVESTORS:

                                 /s/ Lawrence S. Cohen
                                 Lawrence S. Cohen

                                 /s/ Isaac Kier
                                 Isaac Kier

                                 /s/ David A. Preiser
                                 David A. Preiser

                                 /s/ Jon Schotz
                                 Jon Schotz

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