EXHIBIT 99.4 - SUBSCRIPTION AGREEMENT

                            SOUTH TEXAS OIL COMPANY
                            SUBSCRIPTION AGREEMENT

South Texas Oil Company
2802 Flintrock Trace, Suite #252
Austin, TX 78738
Fax: (512) 263-5046

Re:  Investment in Common Stock Purchase Warrants of South Texas Oil Company, a
     Nevada corporation (the "Company")

Dear Sirs:

      The   undersigned  purchaser  (the  "Purchaser")  hereby  subscribes  for
1,000,000 Common  Stock  Purchase  Warrants  representing the right to purchase
1,000,000  shares of the Company's common stock,  $.001  par  value  per  share
("Common Stock"),  restricted  as  to  transfer  under  Rule 144 and containing
legends  to  that  effect  and  subject  to  piggyback registration  rights  as
described therein (the "Warrants").  The purchase  price  for  the  Warrants is
U.S.  $100,  and  good  and  other valuable consideration, receipt of which  is
acknowledged by Company.

      For the purpose of subscribing  for  such  Warrants,  and intending to be
legally bound hereby, the Purchaser hereby agrees as follows:

NAME OF PURCHASER: Longview Fund, L.P.

ADDRESS  OF  PURCHASER:  600 Montgomery Street, 44th Floor, San  Francisco,  CA
94111

DATE OF SUBSCRIPTION: January ___, 2007

AMOUNT OF SUBSCRIPTION  AND  PURCHASE  PRICE: $100 (United States Dollars), and
good and other valuable consideration.

COUNTRY OF RESIDENCE: United States

1.    Subscription for Warrants.

           Upon the terms and conditions set forth herein, the Purchaser hereby
subscribes for and agrees to acquire the Warrants for the Purchase Price stated
above  (the  "Subscription Price").  The Company  acknowledges  receipt  of  or
credit to Purchaser  of  the  full  amount  of  the  Subscription  Price.  Upon
acceptance of this Subscription Agreement by the Company in accordance with the
provisions hereof, this Subscription Agreement shall become a binding  contract
between  the  parties  hereto.   The Purchaser acknowledges that all documents,
records and books pertaining to the  investment  contemplated  hereby have been
made available for inspection by the Purchaser and his attorney, accountant and
purchaser representative, if any, and that the books and records of the Company
will  be available, upon request made by the Purchaser, upon reasonable  notice
to management  of  the  Company,  for  inspection  by  the Purchaser and/or his
representatives during reasonable business hours.

      2.   Acceptance of Subscription.

           The Company acknowledges that this Subscription has been irrevocably
accepted.

      3.   Certain Representations of the Purchaser.

           The  Purchaser  hereby represents and warrants  as  follows  to  the
Company and management, and  the  Purchaser acknowledges that the Purchaser has
full knowledge that such persons intend  to  rely  on  such representations and
warranties:

           (a)   The Purchaser has read carefully and understands  any  and all
information provided to him by the company, and has consulted his own attorney,
accountant   or   purchaser  representative  with  respect  to  the  investment
contemplated hereby and its suitability for the Purchaser.

           (b)   The  Company  has given to the Purchaser, during the course of
this transaction and prior to the  purchase of the Warrants, the opportunity to
ask questions of, and receive answers  from management concerning the terms and
conditions  of  this  investment  and  to  obtain  any  additional  information
necessary to verify information that was provided  to  the  Purchaser,  to  the
extent  that  the  Company possesses such information or can acquire it without
unreasonable effort or expense.

           (c)   The  Purchaser  is  acquiring the Warrants without having been
furnished any offering literature or prospectus  other  than  any  documents or
answers to questions described in Section 3(b) above.

           (d)   The   Purchaser   is   acquiring   the  Warrants  legally  and
beneficially for his own account as principal, and only  for investment and not
with a view toward resale or other distribution thereof.  Disposition authority
for the Warrants will be held solely by the Purchaser.

           (e)   The Purchaser understands and agrees that  the  Purchaser must
bear the economic risk of the investment contemplated hereby for an  indefinite
period  of time; that the Warrants has not been registered under the Securities
Act of 1933, as amended (the "Securities Act"), and therefore cannot be resold,
and the Purchaser  shall  not  attempt  to  resell any thereof, unless they are
subsequently registered under the Securities  Act  or  unless an exemption from
such registration is available; that the Purchaser will not resell or otherwise
dispose of all or any part of the Warrants purchased by the Purchaser except as
permitted  by  law,  including,  without  limitation,  any and  all  applicable
provisions   of  this  Agreement,  the  Securities  Act  and  any   regulations
thereunder, and  applicable state securities laws and regulations; and that the
Company does not have  any  intention  of  registering  the  Warrants under the
Securities Act or of supplying any information which may be necessary to enable
the Purchaser to sell the Warrants, except as described in the  Warrants.   All
certificates  and  other documents issued in connection with the Warrants shall
bear appropriate legends as to the restrictions on transfer.

           (f)   The  Purchaser has adequate means of providing for his current
needs and personal contingencies  and  has  no need for liquidity in connection
with the investment contemplated hereby.  The Purchaser's overall commitment to
investments which are not readily marketable is not disproportionate to the net
worth of the Purchaser, and the Purchaser's investment in the Warrants will not
cause such overall commitment to become excessive.   The  Purchaser  recognizes
that an investment in the Company involves certain risks, and the Purchaser has
taken full cognizance of and understands all of the risk factors related to the
purchase of the Warrants.

           (g)   The  Purchaser  has such knowledge and experience in financial
and business matters that he, together with his purchaser representative(s), if
any, is capable of evaluating the  merits  and  risks  of  an investment in the
Warrants.

           (h)   The Purchaser is familiar with the term "accredited  investor"
as such term is utilized in Regulation D promulgated under the Securities  Act.
The Purchaser represents and warrants that Purchaser is an accredited investor.

      4.   Acknowledgments of the Purchaser.

           The  Purchaser understands and acknowledges that no federal or state
agency has made any  finding  or  determination  as  to  the reasonables of the
Warrants  for  public  investment or any recommendation or endorsement  of  the
investment.

      5.   Registration.   If  the Company at any time proposes to register any
of its securities under the Securities  Act  of  1933  for  sale to the public,
whether  for  its own account or for the account of other security  holders  or
both, except with  respect  to  registration  statements  on  Forms S-4, S-8 or
another  form not available for registering the Common Stock for  sale  to  the
public, each  such  time  it will give at least thirty (30) days' prior written
notice to the Purchaser or  assignee of the Warrants of its intention so to do.
Upon the written request of the  Purchaser or assignee, received by the Company
within fifteen (15) days after the  giving  of  any such notice by the Company,
the  Company will cause the Common Stock as to which  registration  shall  have
been so  requested  to  be  included  with  the securities to be covered by the
registration statement proposed to be filed by  the  Company, all to the extent
required  to  permit  the  sale  or other disposition of the  Common  Stock  so
registered by the Purchaser or assignee.   The foregoing supplements the rights
granted to the Purchaser and described in Section 10 of the Warrant.

      6.   General.

           This Subscription Agreement (a) shall  be binding upon the Purchaser
and the heirs, legal representatives, successors and  assigns of the Purchaser,
(b) shall be governed, construed and enforced in accordance  with  the  laws of
the  State  of New York (except insofar as affected by the state securities  or
"Blue Sky" laws  of the jurisdiction in which the offering described herein may
have been made to  the  Purchaser), and (c) shall survive the acceptance by the
Company of this Subscription  Agreement  and  the  consummation of the offering
contemplated  hereby.   Venue for dispute resolution in  connection  with  this
Subscription Agreement shall  be  the  same  as  set forth in Section 14 of the
Warrant.

      IN  WITNESS  WHEREOF,  the  Purchaser  has  executed   this  Subscription
Agreement as of January ___, 2007.

LONGVIEW FUND, L.P.


By: _________________________________________
    Name:
    Title:


ACCEPTED:

SOUTH TEXAS OIL COMPANY


By: _________________________________________
    Name:
    Title: