SOUTH TEXAS OIL COMPANY SIGNS LETTER OF INTENT TO ACQUIRE ADDITIONAL ACREAGE

Austin,  Texas  -  November  2, 2006 - South Texas Oil Company (OTCBB: STXX) an
independent oil company active in the acquisition, development and operation of
oil and gas properties with proven  reserves,  today  reported  it has signed a
Letter  of  Intent  for  the  purchase  of  at  least 50% and up to 75% working
interest in approximately 20,000 acres in the DJ basin in Northeast Colorado.

South Texas Oil's President, Murray Conradie stated,  "We intend to purchase at
least 50% and up to a 75% working interest (WI) and 60%  royalty  interest (RI)
in the 20,000 acres being offered at a cost of approximately $15 million  for a
75%  WI.   The purchase will be undertaken by issuing approximately 4,8 million
shares of South Texas Oil restricted common stock."

Significant points of interest for the field are as follows:

 -  Drilling and recovery in the area commenced in the mid 1950's and virtually
    all activity in the area ceased in the mid 1980's.

 -  A report  prepared by an independent petroleum engineer based on a field of
    3,800 acres  within  the  20,000  acres shows estimates of approximately 20
    million barrels of oil, 9 billion standard  cubic  feet of solution gas and
    8.3 billion standard cubic feet of free gas in the gas cap with only 30% of
    these known reserves recovered.

 -  With  today's  technology  versus  that of 20 to 50 years  ago,  i.e.  frac
    techniques,  drilling  techniques,  etc.,  the  prospects  for  significant
    recovery of these reserves or new primary  production  and completion using
    these techniques is excellent.

 -  A test well was recently drilled and completed with results  of 500 mcf per
    day of gas production.

 -  Three  additional  wells are scheduled to be drilled and completed  in  the
    next 90 days.

 -  The entire 20,000 acre field offers the potential of over 500 wells.

South Texas Oil's President, Murray Conradie continued, "We are very pleased to
have the opportunity to  acquire  this  acreage as the area offers multiple pay
zones for both oil and gas, with some wells being capable of producing both oil
and   gas.    The  area  additionally  offers  excellent   secondary   recovery
opportunities using  modern  recovery  techniques.   Furthermore, a significant
amount  of the infrastructure which includes gathering  pipelines  already  run
throughout  the  area  which  translates  to  significant  cost  savings in the
recovery of the reserves."

"This  is a very favorable time for the oil industry and we are confident  that
we are establishing  the  company  for long term continued growth by adding gas
recovery operations and significant  reserves of both oil and gas.  The closing
of this acquisition is subject to an independent  geological  evaluation  being
conducted and a fairness opinion issued." concluded Mr. Conradie.

ABOUT SOUTH TEXAS OIL COMPANY
South  Texas  Oil  Company  was  formed  for the purpose of the development and
operation of oil properties with proven reserves. South Texas Oil currently has
5,244 acres of oil properties made up of 3,605  acres in Frio County, Texas and
1,639 in Atascosa County, Texas.

For further information: www.southtexasoil.com

Certain   statements  made  in  this  press  release  contain   forward-looking
statements  that  involve  a  number  of risks and uncertainties. This forward-
looking information is based on certain  assumptions,  including, among others,
presently known physical data concerning size and character  of  reservoirs and
economic   recoverability.  Some  of  these  expectations  may  be  based  upon
assumptions  or  judgments  that prove to be incorrect. In addition, operations
involve numerous risks and uncertainties,  many of which are beyond South Texas
Oil's  control,  which  could  result in expectations  not  being  realized  or
otherwise materially affect the  financial  condition, results of operation and
cash flows. Additional information regarding these and other risks is contained
in South Texas Oil's filings with the Securities and Exchange Commission.

Contact:

South Texas Oil Company
Murray Conradie Pres/CEO (210) 568-9760
murray.conradie@southtexasoil.com