SOUTH TEXAS OIL COMPANY

2802 Flintrock Trace, Suite 252
Austin, TX  78738
Telephone:  (512) 371-4152
Facsimile: (512) 263-5046

April 18, 2007

Securities and Exchange Commission
Kevin Stertzel, Division of Corporation Finance
Mail Stop 7010
100 F Street, N.E.
Washington, D.C. 20549

Re:    SOUTH TEXAS OIL COMPANY
       COMMENT LETTER DATED MARCH 6, 2007
       FORM 10-K
       FILE NO. 0-50732
       FILED ON MARCH 31, 2006

Dear Mr. Stertzel:

The  following  are  South  Texas  Oil Company's responses to the comments sent
under cover of your March 6, 2007 letter sent to my attention.  An amendment on
Form 10-KSB/A for the year ended December 31, 2005 was filed on April 17, 2007.

Form 10-KSB for the Fiscal Year Ended December 31, 2005

General

   1.  Please submit your response letter dated February 8, 2007 and your draft
       Form 10-KSB amendment to your EDGAR correspondence folder.

       Response:  Form 10-KSB/A was submitted on April 17, 2007.

Note 2 - Summary of Significant Accounting Policies

Fixed Assets, page F-8

   2.  We note your response to our  prior comment number two.  It appears from
       your response letters and the draft  amendment  provided as part of your
       response,  that  you  intend to amend your document.   As  such,  please
       modify  your  document  to   incorporate  all  changes  including  those
       pertaining to your oil and gas assets and related note disclosures.

       Response:  Form 10-KSB/A, filed  on  April  17,  2007,  was  modified to
       incorporate  all changes including those pertaining to the oil  and  gas
       assets and related note disclosures.

   3.  We have reviewed  your  response  to  prior comment number three and are
       unable to agree with you conclusion.  As  noted  in  paragraph 3 of SFAS
       143 you are required to recognize a liability for the fair value of your
       asset  retirement  obligations  when  it  is  incurred.   This  requires
       recording a liability and an increase in the cost of the related  asset.
       We issue our prior comment in its entirety.

   Response:  Form 10-KSB/A, filed on April 17, 2007, was modified to recognize
   the asset retirement obligations.

Standardized  Measure  of  Discounted Future Net Cash Flows and Changes Therein
Relating to Proved Oil and Gas Reserves, page F-19

   4.  We note your response  to our prior comment number six.  It appears your
       3.5% rate used in your impairment analysis incorporates only the risk of
       inflation.  Please tell  us  why you believe this rate is representative
       of  your  risk  profile and your  cost  of  capital.   Please  refer  to
       paragraph 23 of SFAS 144.

   Response:  The Company  has  revised the impairment analysis utilizing a 10%
   rate to account for the risk of  inflation  as well as our estimated cost of
   capital.  The net present value obtained is still much greater than the book
   value currently reported on the financial statements.

Engineering Commments

Financial Statements
Note 4 -  Reserves Quantity Information
Proved Developed and Undeveloped Reserves, Page F-19

   5.  In comment seven of our letter dated September  14,  2006, we asked that
       you incorporate year-end prices and costs in your 2005  estimated proved
       reserves and associated standardized measure.  Your draft  amended  2005
       Form 10-KSB shows none of these requested changes.  We reissue our prior
       comment seven.

   Response:   Form  10-KSB/A,  filed  on  April  17,  2007,  was  modified  to
   incorporate the requested information based on new reserve studies performed
   by   independent   petroleum  engineers  which  factored  in  the  requested
   information.

   6.  We note your February  5, 2007 announcement that you have received a $15
       million credit facility  as  well  as your January 31, 2007 announcement
       concerning your drilling of a third  (Colorado)  DJ  basin  well.   Your
       response  to  our prior comment number eight indicates you will initiate
       drilling upon your  booked  proved undeveloped reserves in Texas "during
       the next 12 months."  Even though  the  development capital is available
       and these PUD volumes have been booked since year-end 2002, you have not
       drilled  any  of  these  locations.   This  additional   delay   in  the
       monetization  of  these volumes lends doubt as to the viability of these
       reserves and precludes  their  classification  as  proved.  Please amend
       your document to remove these claimed proved undeveloped reserves.

   Response:  The Company obtained a new reserve study which  has  removed  the
   $3.1  million  of  development costs which were previously factored into our
   reserve estimates.  The removal of this should alleviate any concern that we
   are overly optimistic about the value of the reserves.



Sincerely,
/s/ Murray N. Conradie
- ----------------------
Murray N. Conradie
Chairman/CEO