Document:

[Exhibit 4.2 -- Specimen copy of $3.50 Series A Warrant Certificate]

No. ____                        SPECIMAN                     ___ WARRANTS

      $3.50 SERIES A STOCK PURCHASE WARRANT CERTIFICATE FOR PURCHASE
        OF COMMON STOCK OF PREMIER DEVELOPMENT & INVESTMENT, INC.

     This certifies that, FOR VALUE RECEIVED, _____ SPECIMEN ________
("Registered Holder") is the owner of the number of Warrants ("Warrants")
specified above.  Each Warrant entitles the Registered Holder to purchase,
subject to the terms and conditions set forth in this Certificate, one fully
paid and non-assessable share of Common Stock, Class A, $0.004 par value
("Common Stock"), of Premier Development & Investment, Inc., a Nevada
corporation ("Company") at any time prior to expiring on December 31, 2007, upon
the presentation and surrender of this Warrant Certificate, at the corporate
office of the Company, accompanied by payment of $3.50 per share ("Purchase
Price") in lawful money of the United States of America in cash or by official
bank or certified check made payable to Premier Development & Investment, Inc.

     Each Warrant represented hereby is exercisable at the option of the
Registered Holder, but no fractional shares of Common Stock will be issued.  In
the case of exercise of less than all of the Warrants represented hereby, the
Company shall cancel this Warrant Certificate upon the surrender hereof and
shall execute and deliver a new Warrant Certificate or Warrant Certificates of
like for the balance of such Warrants.

     Prior to the exercise of any Warrant represented hereby, the Registered
Holder shall not be entitled to any rights of a stockholder of the Company,
including, without limitation, the right to vote or to receive dividends or
other distributions, and shall not be entitled to receive any notice of any
proceedings of the Company.  Prior to presentment for registration of transfer
hereof, the Company may deem and treat the Registered Holder as the absolute
owner hereof and of each Warrant represented hereby for all purposes and shall
not be affected by any notice to the contrary.

     This Warrant Certificate shall be governed by and construed in accordance
with the laws of the State of Nevada.

     IN WITNESS WHEREOF, the Company has caused this Warrant Certificate to be
duly executed, manually or in facsimile, by an officer thereunto duly authorized
and a facsimile of its corporate seal to be imprinted hereon.

[PREMIER DEVELOPMENT
& INVESTMENT, INC.                                 SPECIMEN
CORPORATE SEAL NEVADA]

Dated:                                      /s/  Andrew L. Jones
      -------------------                   -----------------------
                                            President, Chairman, CEO,
                                            Treasurer and SecretaryEXHIBIT 4.1

NUMBER                                                                     UNITS

U-

SEE REVERSE FOR
CERTAIN DEFINITIONS
                         PLATINUM ENERGY RESOURCES, INC.

                                                            CUSIP ______________

                  UNITS CONSISTING OF ONE SHARE OF COMMON STOCK
              AND ONE WARRANT TO PURCHASE ONE SHARE OF COMMON STOCK

THIS CERTIFIES THAT                                       is the owner of Units.

Each Unit ("Unit") consists of one (1) share of common stock, par value $.0001
per share ("Common Stock"), of Platinum Energy Resources, Inc., a Delaware
corporation (the "Company"), and one warrant (the "Warrants"). Each Warrant
entitles the holder to purchase one (1) share of Common Stock for $6.00 per
share (subject to adjustment). Each Warrant will become exercisable on the later
of (i) ____________, 2006 or (ii) the earlier of the Company's completion of a
merger, capital stock exchange, asset acquisition or other similar business
combination, and will expire unless exercised before 5:00 p.m., New York City
Time, on ______________, 2009, or earlier upon redemption (the "Expiration
Date"). The Common Stock and Warrants comprising the Units represented by this
certificate are not transferable separately prior to ____________, 2005, subject
to earlier separation in the discretion of Casimir Capital LP. The terms of the
Warrants are governed by a Warrant Agreement, dated as of ____________, 2005,
between the Company and Continental Stock Transfer & Trust Company, as Warrant
Agent, and are subject to the terms and provisions contained therein, all of
which terms and provisions the holder of this certificate consents to by
acceptance hereof. Copies of the Warrant Agreement are on file at the office of
the Warrant Agent at 17 Battery Place, New York, New York 10004, and are
available to any Warrant holder on written request and without cost.

This certificate is not valid unless countersigned by the Transfer Agent and
Registrar of the Company.

Witness the facsimile seal of the Company and the facsimile signature of its
duly authorized officers.

By
                         PLATINUM ENERGY RESOURCES, INC.
                                    CORPORATE
---------------------------------   DELAWARE     -------------------------------
            Chairman of the Board     SEAL       Secretary
                                      2005

                         PLATINUM ENERGY RESOURCES, INC.

The Company will furnish without charge to each stockholder who so requests, a
statement of the powers, designations, preferences and relative, participating,
optional or other special rights of each class of stock or series thereof of the
Company 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:

<PAGE>

<TABLE>
<CAPTION>
<S>                                                     <C>
TEN COM - as tenants in common                           UNIF GIFT MIN ACT - Custodian
TEN ENT - as tenants by the entireties                            (Cust)      (Minor)
JT TEN  - as joint tenants with right of survivorship    under Uniform Gifts to Minors Act
          and not as tenants in common
                                                                   ----------------------
                                                                          (State)
</TABLE>

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)

                                                                           Units

represented by the within Certificate, and do hereby irrevocably constitute and
appoint

                                      Attorney to transfer the said Units on the

books of the within named Company will 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 whatever.

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).EXHIBIT 4.2

NUMBER                                                      SHARES

[SYMBOL]

                         PLATINUM ENERGY RESOURCES, INC.

              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                  COMMON STOCK

                                                                 SEE REVERSE FOR
                                                             CERTAIN DEFINITIONS

THIS CERTIFIES THAT                                      CUSIP _________________

IS THE OWNER OF

  FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $.0001 EACH OF THE
                                COMMON STOCK OF

                         PLATINUM ENERGY RESOURCES, INC.

  transferable on the books of the Corporation in person or by duly authorized
attorney upon surrender of this certificate properly endorsed. This certificate
 is not valid unless countersigned by the Transfer Agent and registered by the
 Registrar. Witness the seal of the Corporation and the facsimile signatures of
                         its duly authorized officers.

Dated:                   PLATINUM ENERGY RESOURCES, INC.
                                    CORPORATE
                                      SEAL
-----------------------------------   2005   -----------------------------------
CHAIRMAN                                     SECRETARY
                                    DELAWARE

<PAGE>

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:
<TABLE>
<CAPTION>
<S>                                                         <C>
TEN COM - as tenants in common                               UNIF GIFT MIN ACT            Custodian
TEN ENT - as tenants by the entireties                                          (Cust)                (Minor)
JT TEN  - as joint tenants with right of survivorship                          under Uniform Gifts to Minors Act
          and not as tenants in common
                                                                                             (State)
</TABLE>

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

                         PLATINUM 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. This certificate and the shares represented thereby are issued and shall
be held subject to all the provisions of the Certificate of Incorporation and
all amendments thereto and resolutions of the Board of Directors providing for
the issue of shares of Preferred Stock (copies of which may be obtained from the
secretary of the Corporation), to all of which the holder of this certificate by
acceptance hereof assents.

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 will
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 whatever.

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).

The holder of this certificate shall be entitled to receive funds from the trust
fund only in the event that the holder seeks to convert his respective shares
into cash upon a business combination which he voted against and which is
actually completed by the Company. In no other circumstances shall the holder
have any right or interest of any kind in or to the trust fund.

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