UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT

 Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

    Date of Report (Date of earliest event reported) December 21, 2006

                            SOUTH TEXAS OIL COMPANY
	      --------------------------------------------------
              (Exact name of Registrant as specified in charter)


            Nevada                  0-50732              74-2949620
- -----------------------------     -----------         ----------------
(State or other jurisdiction      (Commission         (I.R.S. Employer
       of incorporation)          File Number)         Identification)

       2881 CR 2880, Big Foot, TX                           78005
- ----------------------------------------                 ----------
(Address of principal executive offices)                 (Zip Code)

        P.O. Box 340504, Austin, TX                         78734
       -------------------------------                    ---------
               (Mailing Address)                         (Zip Code)

                  210-568-9760 (Telephone) 210-568-9761 (Fax)
                  -------------------------------------------
                          (Issuer's telephone number)

Check  the  appropriate box below if the Form 8-K is intended to simultaneously
satisfy the filing  obligation  of  the  registrant  under any of the following
provisions:

[  ] Written communication pursuant to Rule 425 under  the  Securities  Act (17
     CFR 230.425)

[  ] Soliciting   material  pursuant  to  Rule  14a-12  under  the Exchange Act
     (17 CFR 240.14a-12)

[  ] Pre-commencement  communications  pursuant  to Rule  14d-2(b)  under   the
     Exchange Act (17 CFR 40.14d-2(b))

[  ] Pre-commencement  communications  pursuant  to  Rule  13e-4(c)  under  the
     Exchange Act (17 CFR 240.13e-4 (c))



SECTION 2 - FINANCIAL INFORMATION

ITEM 2.01    Completion of Acquisition or Disposition of Assets.

On November 2, 2006, South  Texas  Oil  Company issued a news release reporting
that South Texas Oil Company has signed a  Letter of Intent for the purchase of
at least 50% and up to 75% working interest (WI) and 60% Royalty Interest (RI),
in approximately 20,000 acres in the DJ basin  in  Northeast Colorado at a cost
of $15 million if the full 75% working interest is acquired.

   a)   On December 20, 2006, South Texas Oil Company  acquired half of the 75%
        working interest it intends acquiring from Doud  Oil  &  Gas Company in
        these leases.  The remaining 37.5% working interest is expected  to  be
        acquired in January 2007.

   b)   South  Texas  Oil  Company  has  acquired  a  37.5% working interest in
        approximately  20,000  acres  of  mineral leases in  the  DJ  basin  in
        Northeast Colorado.

   c)   There exists no material relationship  other  than  in  respect  of the
        transaction,  between  the  registrant or any of its affiliates, or any
        officer and director and Doud Oil & Gas Company.

   d)   South Texas Oil Company issued  2,419,335  shares  of restricted common
        stock for a consideration of $7,500,000 based upon a  five  day closing
        average of the South Texas Oil Company shares as agreed upon  when  the
        original Letter of Intent was signed.

SECTION 8 - OTHER EVENTS

ITEM 8.01    Other Events.

On  November  2,  2006, South Texas Oil Company issued a news release reporting
that South Texas Oil  Company has signed a Letter of Intent for the purchase of
at least 50% and up to 75% working interest (WI) and 60% royalty Interest (RI),
in approximately 20,000  acres  in the DJ basin in Northeast Colorado at a cost
of $15 million if the full 75% working interest is acquired.

On December 21, 2006, South Texas  Oil  Company issued a news release reporting
that South Texas Oil Company has acquired  half  of the 75% working interest it
intends acquiring from Doud Oil & Gas Company in these  leases. A copy of which
is attached as Exhibit 99.1 hereto and incorporated herein by this reference.











SECTION 9 - FINANCIAL STATEMENTS AND EXHIBITS

ITEM 9.01  Financial Statements and Exhibits.

     (a) Financial Statements.

             Not applicable.

     (b) Pro Forma Financial Information.

             Not applicable.

     (c) Exhibits

Exhibit Number      Description
- --------------	    -------------------------------------
99.1                Press Release dated December 21, 2006


          SIGNATURES

Pursuant  to  the  requirements  of the Securities Exchange Act  of  1934,  the
Registrant has duly caused this Current  Report on Form 8-K to be signed on its
behalf by the undersigned hereunto duly authorized.

Date: December 21, 2006

               South Texas Oil Company

               By: /s/ Murray N. Conradie
               -----------------------------
               Murray N. Conradie, Chief Executive Officer