99.2          Amendment to October 1, 2007 Gas Contract

AMENDMENT TO GAS PURCHASE CONTRACT

      This Amendment is entered effective as of January 1, 2008, between  SOUTH
TEXAS OIL COMPANY ("Seller") and DCP MIDSTREAM, LP ("Buyer").

      In  consideration  of the premises and of the covenants contained herein,
the parties agree to amend  the  Gas  Purchase  Contract dated as of October 1,
2007  between the parties or their predecessors, Buyer's  File  No.  GDS0822PUR
(the "Contract")  covering  various  acreage  and properties in Bastrop County,
Texas, as follows:

      1.    Revised Delivery Points.    Section  2, DELIVERY POINTS, is deleted
in its entirety and is replaced with the following:

             2.     DELIVERY POINTS.    (a) The Delivery Points for gas
             to be delivered by Seller to Buyer for existing sources of
             production will be at the inlets of Buyer's  Facilities at
             mutually  agreeable site(s) on a 6" polyethylene  pipeline
             to be built by Buyer's Affiliate DCP Austin Gathering, LLC
             ("DCP Austin")  from  its  existing  pipeline  in the J.H.
             Bostick Survey, A-13, Bastrop County, Texas to a  point at
             or  near the Marburger #1 Well in the R. N. Grimes Survey,
             Bastrop  County,  Texas,  a distance of approximately 2.08
             miles ("Marburger Line"). Subject  to  acquisition  of the
             necessary  rights  of way and permits at reasonable costs,
             Buyer will cause DCP  Austin promptly to lay the Marburger
             Line. Seller shall at its cost install a pipeline from the
             Graeco  No. 1 Well to the  new  Delivery  Point  near  the
             Marburger #1 Well.

             (b)  Seller   also  agrees  to  pay  Buyer  $180,000  upon
             execution of this Amendment by Seller as reimbursement for
             one third of the  actual  costs to procure and install the
             Marburger Line. These actual  costs shall include costs to
             purchase any rights-of-way, including brokerage costs, and
             all costs to purchase, install,  and connect the Marburger
             Line, including any other equipment  deemed  necessary  by
             Buyer  or DCP Austin. Buyer will provide a full accounting
             of the costs  for  the  Marburger Line to Seller within 30
             days following its completion and the availability of cost
             information. If one third of the actual costs is less than
             $180,000, Buyer shall refund  to Seller the difference. If
             one  third  of the actual costs exceeds  $180,000,  Seller
             shall nevertheless  have  no  further  cost  participation
             liability  for  the  line.  If the Marburger Line  is  not
             complete for any reason prior  to  July  31,  2008,  Buyer
             shall   promptly   refund  to  Seller  the  $180,000  cost
             participation payment,  and  Seller  will  have no further
             cost participation responsibility for the Marburger Line.

             (c)If Seller and other working interest owners  deliver in
             excess  of  220,000 Mcf during the first two (2) years  of
             deliveries that  has  been  produced  from  the  wells and
             leases   committed  under  this  Contract  or  from  other
             production  sources  later  added  or  that  are otherwise
             delivered through the Marburger Line, effective  as of the
             first  of  the following month, Buyer shall pay Seller  an
             additional $0.**  per  Mcf  of  gas  delivered  under this
             Contract until Seller has received through those  payments
             all cost participation amounts that it previously paid  to
             Buyer under this Section, without interest.

             (d)  The  Delivery Points for future sources of production
             committed under  this  Contract  will be established under
             Section  B.2  of Exhibit A, except that  Buyer  agrees  to
             cause DCP Austin  to  install measurement stations for all
             future wells that are to be connected under this Contract.
             These measurement stations are to be on DCP Austin's 4" or
             6" pipelines or at other  mutually agreeable locations, so
             long as Seller can demonstrate continuous flow of at least
             50 Mcf per Day and Seller installs  the necessary pipeline
             from  the  lease  production points to each  new  Delivery
             Point.

             (e) Title to the gas  and all its components shall pass to
             and vest in Buyer at the Delivery Points without regard to
             the purposes for which Buyer may later use or sell the gas
             or its components.

      2.     Price. Section 5.1, CONSIDERATION, is deleted in its entirety, and
is replaced with the following:

             5.1    CONSIDERATION.      As  full consideration for the
             gas and all its components delivered to Buyer each month,
             Buyer  shall  pay  Seller  (i)  **%  of   the  net  value
             determined  under  Section  5.2  below  for  Residue  Gas
             attributable  to  Seller's gas, and (ii) **% of  the  net
             value under Section  5.3  below  for  any  recovered NGLs
             attributable  to  Seller's  gas.  If  Seller's deliveries
             exceed  an average of 500 Mcf per Day during  any  month,
             Buyer  shall   pay  Seller  (i)  **%  of  the  net  value
             determined  under  Section  5.2  below  for  Residue  Gas
             attributed to Seller's gas, and (ii) **% of the net value
             under Section 5.3 below for any recovered NGLs attributed
             to Seller's gas. No separate payment or value calculation
             is to be made  under  this  Contract  for helium, sulfur,
             CO2, other non- hydrocarbons, or for Inferior Liquids.

       3.    Scope. The Contract is amended to the extent  provided  above.  In
all  other  respects,  it  is  confirmed  and  shall continue in full force and
effect. This Amendment supersedes and fully replaces  the previous Amendment to
the Contract between the parties that was also effective as of January 1, 2008.

       4.    Counterparts.  This Amendment may be executed  in  any  number  of
counterparts, all of which shall be considered together as one instrument. This
Amendment is binding upon all  parties  executing  it,  whether  or  not  it is
executed by all parties owning interests in the properties committed under  the
Contract as amended.


The parties have signed this Amendment by their duly authorized representatives
as of the date stated above.



SOUTH TEXAS OIL COMPANY                      	DCP MIDSTREAM, LP



By: ________________________________         	By: __________________________


Managing Director, South and Central Texas   	Chief Executive Officer

Signed on: February 15, 2008