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) September 26, 2007

                            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)

       769 Highway 95N, Bastrop, TX                         78602
- -------------------------------------------              ----------
(Address of principal executive offices)                 (Zip Code)

                 (512)772-2474 (Telephone) (512)263-5046 (Fax)
                  -------------------------------------------
                          (Issuer's telephone number)

               2802 Flintrock Trace, Suite 252, Austin, TX 78738
              ---------------------------------------------------
                 (Former address if changed since last report)

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 1 - REGISTRANT'S BUSINESS AND OPERATIONS

ITEM 1.01    Entry into a Material Definitive Agreement.

A. On January 31, 2007, South  Texas Oil Company received a 3 year, $15 million
revolving credit facility.  On September  25,  2007,  South  Texas  Oil Company
increased the credit facility from $15 million to $30 million.

The  credit facility of prime plus 4% will be used for acquisitions, additional
well workovers and expanded drilling programs.

The original  terms of the credit facility were unchanged with the addition the
exception of the following terms added to the first Amendment.

South Texas Oil  Company  and/or  its  subsidiaries will execute and deliver to
Lender those certain Conveyances of Overriding  Royalty  Interests,  each  in a
form  acceptable  to  Lender, whereby South Texas shall, and/or shall cause the
applicable Subsidiaries to, grant perpetual overriding royalty interests in its
and  the  subsidiaries'  current   and  future  interests  in  the  hydrocarbon
production of all of their leases in  the  Giddings and Bastrop properties (the
"Override Properties") as follows:

*      Overriding royalty interests of Lender  in the Override Properties equal
to 4% until the Override Properties produce 1,000  bbls  per  day  net  to  the
subject working interests for 90 consecutive days;

*      Thereafter,  overriding  royalty  interests  of  Lender  in the Override
Properties equal to 3% until the Override Properties produce 2,000 bbls per day
net to the subject working interests for 90 consecutive days; and

*      Thereafter,  overriding  royalty  interests  of  Lender in the  Override
Properties equal to 2%.

Notwithstanding the foregoing, at any time after Borrower repays in full all of
the  outstanding  Notes  (as defined in the Security Agreement)  and  the  Loan
Agreement has been terminated,  such  overriding royalty interests of Lender in
the Override Properties shall be 2%.

B. On September 25, 2007, South Texas Oil  Company,  through  a  subsidiary STO
Properties,  LLC, purchased all rights, titles and interests (of whatever  kind
or character,  whether legal or equitable, and whether vested or contingent) of
Diversity Petroleum, LLP (including interests in oil, gas and/or mineral leases
covering such lands  and  wells,  overriding royalties, production payments and
net profits interests in such lands,  such  leases  and  wells, and fee mineral
interests, fee royalty interests and other interests in such oil, gas and other
minerals)for an amount of $10 million by paying $7.5 million in cash, issuing a
promissory  note for $1.5 million and issuing restricted shares  valued  at  $1
million.





SECTION 8 - OTHER EVENTS

ITEM 8.01    Other Events.

On September 26, 2007, South Texas Oil Company issued a news release announcing
that South Texas  Oil  Company  had  received an increase of $15 million to the
company's existing revolving line of credit.  A  copy  of  which is attached as
Exhibit 99.3 hereto and incorporated herein by this reference.

Additionally, in the September 26, 2007 news release, South  Texas  Oil Company
announced the company, through a subsidiary STO Properties, LLC, had  purchased
all rights, titles and interests (of whatever kind or character, whether  legal
or  equitable,  and  whether  vested or contingent) of Diversity Petroleum, LLP
(including interests in oil, gas  and/or mineral leases covering such lands and
wells, overriding royalties, production  payments  and net profits interests in
such  lands,  such  leases  and wells, and fee mineral interests,  fee  royalty
interests and other interests in such oil, gas and other minerals)for an amount
of $10 million by paying $7.5  million  in  cash, issuing a promissory note for
$1.5 million and issuing restricted shares valued at $1 million.

SECTION 9 - FINANCIAL STATEMENTS AND EXHIBITS

ITEM 9.01  Financial Statements and Exhibits.

     (a) Financial Statements.

             Not applicable.

     (b) Pro Forma Financial Information.

If pro forma Information is required, as permitted  by  Item 9.01(b)(2) of Form
8-K,  we  will  file the pro forma financial information   required   by   Item
9.01(b)(1) of  Form  8-K  by amendment to this Current Report on Form 8-K on or
prior  to  71 calendar days from  the  date  we  are  required  to  report  the
acquisition.

     (c) Exhibits

Exhibit Number      Description

99.1                First Amendment to Loan Agreement and Revolving Credit Note
99.2                Purchase and Sale Agreement
99.3                Press Release dated September 26, 2007





          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: September 26, 2007

               South Texas Oil Company

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