99.1          DCP Mainstream LP Gas Contract dated October 1, 2007

                             GAS PURCHASE CONTRACT

       This Gas Purchase Contract (the "Contract") is entered as of October  1,
2007,  between  SOUTH  TEXAS  OIL  COMPANY  ("Seller")  and  DCP  MIDSTREAM, LP
("Buyer").

       For  and in consideration of the mutual covenants contained herein,  the
parties agree as follows:

       1.  COMMITMENT. Seller will sell and deliver and Buyer will purchase and
receive gas produced  from  all  wells  now or later located on all oil and gas
interests now or later owned or controlled  by  Seller  on  or allocated to the
lands  outlined  in  Exhibit  B,  attached  hereto  in  Bastrop County,  Texas.
Definitions  and  General Terms and Conditions included in  this  Contract  are
attached as Exhibit  A.  All  Exhibits  mentioned  herein  are  incorporated by
reference.

       2.   DELIVERY  POINTS.  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 a mutually agreeable site on Buyer's 10" pipeline. Seller
agrees  to  lay  a  pipeline  from  the Graeco No. 1 Well, located  in  the  T.
Highsmith Survey, A-194, Bastrop County,  Texas,  to  Buyer's  Affiliate's  10"
pipeline located near the South Line of the R. H. Grimes Survey, A-173, Bastrop
County,  Texas,  a  distance  of  approximately three miles. This line is to be
constructed within 100 days from the date of execution of this Contract, and be
at least 6 inches in diameter, or the  hydraulic  equivalent  of a 6" pipeline.
The  Delivery  Points  for  future sources of production committed  under  this
Contract will be established  under  Section  B.2  of  Exhibit  A, except Buyer
agrees  to install measurement stations for all future wells, such  measurement
stations  to  be  on  Buyer's  Affiliate's  10"  pipeline  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 to each new
Delivery Point. 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.

       3. DELIVERY PRESSURE. Seller will deliver the gas at the Delivery Points
at a pressure sufficient to  enable  it to enter Buyer's Facilities against the
working pressure at reasonably uniform  rates  of  delivery,  not to exceed the
maximum  allowable  operating  pressure established by Buyer or pressures  that
prevent others from producing ratably.  Buyer  shall  cause  its  Affiliate  to
endeavor  to operate its gathering system in the area of the Delivery Points at
a pressure  not  to exceed forty (40) psig. Buyer in its discretion may require
that Seller install  and operate a pressure relief or reduction device upstream
of any Delivery Point  set  at  the  pressure  designated by Buyer to limit the
pressure  at  which  Seller  delivers  gas,  where  Seller's  deliveries  might
interfere with ratable deliveries from others or to enhance safety.

       4. QUANTITY. (a) Seller shall deliver and Buyer shall purchase and take
Seller's  gas  subject  to the operating conditions and  capacity  of  Buyer's
Facilities  and  resale  markets.  Although  there  is  no  specific  purchase
quantity, Buyer will use commercially  reasonable  efforts  to  market gas for
resale and operate its facilities in an effort to maintain consistent takes of
all  available  quantities.  If  Buyer  takes  less  than  the full quantities
available, Buyer will use commercially reasonable efforts to purchase gas from
the lands covered by this Contract ratably with its purchases  of  similar gas
in each common gathering system or area within its capabilities using existing
facilities,  in compliance with Buyer's existing contracts and with applicable
laws and regulations, including ratable purchases from Buyer's affiliates.

             (a)    Seller  may  dispose  of any gas not taken by Buyer for any
       reason, including events of Force Majeure,  subject  to Buyer's right to
       resume purchases at any subsequent time. If Buyer does  not take gas for
       15  consecutive  Days  and Seller secures a different temporary  market,
       Buyer may resume purchases  only upon 15 Days' advance written notice as
       of the beginning of a Month unless otherwise agreed.

             (b)    Seller will use  commercially reasonable efforts to deliver
       gas meeting the quality requirements  of  Section  F of Exhibit A and to
       avoid delivery of Inferior Liquids as defined in Section A(i) of Exhibit
       A.  If  the  gas at any Delivery Point becomes insufficient  in  volume,
       quality, or pressure,  Buyer may cease gas takes such Delivery Point for
       so long as the condition  exists.  If Buyer ceases taking gas under this
       Section for 30 consecutive Days for  reasons other than quality [Section
       F of Exhibit A] or Force Majeure [Section  H  of  Exhibit A], Seller may
       terminate this Contract with respect to the affected  Delivery Points as
       to  the  then productive zones upon 30 Days' advance written  notice  to
       Buyer;  provided   that  during  the  notice  period  Buyer  may  resume
       consistent takes and  purchases,  and thereby avoid Contract termination
       under Seller's notice.

       5. PRICE.

       5.1  CONSIDERATION. As full consideration  for  the  gas  and  all  its
components deliveredto 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 determined under Section 5.3 below
for any recovered NGLs attributable  to  Seller's  gas. If Seller's deliveries
exceed  an  average  of 1,000 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 determined 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.

       5.2 RESIDUE GAS  VALUE.  The net residue gas value will be determined by
multiplying the MMBtus of residue gas allocable to Seller times the index price
per  MMBtu  published in INSIDE F.E.R.C.'S  GAS  MARKET  REPORT  in  its  first
publication of  the month in which the gas is delivered for "PRICES OF SPOT GAS
DELIVERED TO PIPELINES"  for  HOUSTON SHIP CHANNEL (LARGE PACKAGES ONLY)("INDEX
PRICE") less 15{cent} per MMBtu  for  Seller's residue gas. If this Index Price
quotation is discontinued or materially  modified,  its successor will be used,
or in the absence of a successor, Buyer and Seller will promptly select another
publication that enables calculation of an Index Price  closely  comparable  to
that  previously  used. If a change in the Index Price becomes necessary, Buyer
will  so inform Seller  by  written  notice,  setting  forth  Buyer's  proposed
changes.

       5.3  NGL  VALUE.  The  net  value  of any recovered NGLs attributable to
Seller will be determined by multiplying the  quantity  of  each  NGL component
attributable  to  Seller's  gas  by  the average price per gallon for each  NGL
component f.o.b. Buyer's Facilities. "Average  price"  as to each NGL component
means the simple average of the midpoint of the daily high/low  spot  price for
(i) ethane in E-P mix, (ii) Non-TET propane, (iii) Non-TET isobutane, (iv) Non-
TET  normal  butane,  and  (v)  NonTET  natural gasoline (pentanes and heavier)
during  the  month  as  reported  for Mont Belvieu,  Texas  by  the  Oil  Price
Information  Service (or in its absence,  a  comparable  successor  publication
designated by Buyer) less a transportation, fractionation, and storage ("TF&S")
fee of $0.0*** per gallon. As of January 1 of each calendar year beginning with
2007, Buyer will adjust the TF&S fee upward or downward as follows, but it will
never be less  than  the initial fee. Buyer will adjust (i) 50% of the TF&S fee
by an amount equal to  the  annual  percentage  of  change  in  the preliminary
estimate  of  the implicit price deflator, seasonally adjusted, for  the  gross
domestic product  ("GDP")  as  computed and most recently published by the U.S.
Department of Commerce, rounded to the nearest 100th cent, or in its absence, a
similar successor adjustment factor  designated  by  Buyer, and (ii) 50% of the
TF&S  fee  by  the  percentage  difference between the yearly  average  of  the
previous year's monthly Index Prices defined in Section 5.2 above and those for
the second previous year.

       5.4  LOW  VOLUME DELIVERY POINTS.  For  gas  delivered  at  any  metered
Delivery Points at  which the volume delivered to Buyer has a volume of 300 Mcf
per month or less ("Low Volume"),- Seller shall pay Buyer its pro rata share of
a  fee of $**.00 per month  per  meter  to  cover  Buyer's  administration  and
maintenance  costs.  However,  Buyer  shall  not charge Seller a low volume fee
during  the  first  three  months  days following initial  deliveries  at  each
Delivery Point hereunder. A low volume fee will be assessed, if applicable, for
all production months beginning the  first  Day  of  the  month  following  the
initial three month period at each Delivery Point.

       5.5 ALLOCATION OF RESIDUE GAS AND NGLS. Buyer will determine the residue
gas  and  NGLs  attributable  to  Seller  using  the  following definitions and
procedures. Additional definitions are in Section A of  Exhibit A. From time to
time  Buyer  may  make  changes  and adjustments in its allocation  methods  to
improve accuracy or efficiency to  the  extent  changes  do not have a material
financial impact on Seller.

           (A)      NGLS ALLOCABLE TO SELLER.
           (i)  The quantity of each NGL component allocable  to  Seller's
     gas will be  determined by multiplying the total quantity of each NGL
     component saved  and  sold  at the plant or plants by a fraction. The
     numerator will be the gallons  of that NGL component contained in the
     gas delivered by Seller as determined  by chromatographic analysis or
     other accepted method in the industry, and  the  denominator  will be
     the total gallons of that component contained in all gas delivered to
     Buyer   from   sources  connected  to  Buyer's  Facilities.  Sub-area
     breakdowns  or allocation  of  field  fuel  to  wells  receiving  low
     pressure service may be used as stated in (b)(ii) below
           (B)      RESIDUE GAS ALLOCABLE TO SELLER.
           (i) The  MMBtus  of  "residue  gas allocable to Seller" will be
     determined by multiplying the MMBtus of  "residue  gas  available for
     sale"  from Buyer's Facilities by a fraction. The numerator  will  be
     the "theoretical  MMBtus  of residue gas remaining from Seller's gas"
     delivered by Seller, and the  denominator  will  be  the total of the
     theoretical MMBtus of residue gas remaining from all gas delivered to
     Buyer  from  the  common  sources  connected  to  Buyer's Facilities.
     "Residue gas available for sale" means all residue gas available from
     Buyer's Facilities, net of residue gas required for  the operation of
     Buyer's Facilities. The "theoretical MMBtus of residue  gas remaining
     from Seller's gas" means the sum of the MMBtus of methane and heavier
     hydrocarbons   contained   in   Seller's   gas   as   determined   by
     chromatographic  analysis  or  other accepted method in the industry,
     less the MMBtus of NGLs saved and sold attributable to Seller's gas.
           (ii)Buyer may apply the allocation  principles  of this Section
     5.6 repeatedly to sub areas or separately measured systems  in  order
     to  improve  accuracy.  For example, Buyer may allocate plant NGL and
     residue gas volumes to field  gathering system boosters, then use the
     same principles to allocate those  results  further to sources behind
     those boosters, or Buyer may allocate all field  fuel  to  all  wells
     receiving low pressure service and thus benefiting from compression.

     6.      TERM.  This Contract shall be in force for a primary term  through
 September 30, 2012,  and  from  month  to  month  thereafter until canceled by
 either party as of the end of the primary term or any  anniversary  thereafter
 by giving the other party at least 60 Days' but no more than 120 Days' advance
 written notice of termination.

 7.    ADDRESSES AND NOTICES. Either party may give notices to the other  party
by  firstclass  mail  postage  prepaid,  by  overnight  delivery service, or by
facsimile with receipt confirmed at the-following addresses  or other addresses
furnished by a party by written notice. Unless Seller objects in writing, Buyer
may also use Seller's current address for payments. Any telephone numbers below
are  solely for information and are not for Contract notices. The  parties  opt
out of  electronic  delivery  of  notices  and  amendments under this Contract,
except that notices and hand-signed amendments may  be  delivered  by facsimile
with receipt confirmed as stated above.

Notices to Seller - Correspondence      South Texas Oil Company
                                        Attn: Mr. Mr. J. Scott Zimmerman
                                        769 Hwy 95 North
                                        Bastrop, Texas 78602
                                        Phone: (303) 981-3314
                                        Fax: (512) 321-4737

Notices to Buyer - General:             DCP Midstream, LP
(Gas Acquisitions and Accounting)       5718 Westheimer Road, Suite 2000
                                        Houston, Texas 77057
                                        Phone: (713) 735-3600
                                        Fax: (713) 735-3101

Ownership changes, Division             DCP Midstream, LP
Orders:                                 Division Orders
                                        Two Warren Place
                                        6120 South Yale, Suite 1100
                                        Tulsa, OK 74136
                                        Fax: (918) 499-4286

       The   parties  have  signed  this  Contract  by  their  duly  authorized

representatives as of the date first set forth above.




SOUTH TEXAS OIL COMPANY             DCP MIDSTREAM, LP



By ___________________________      By  ___________________________________
Chief Operating Officer             Managing  Director,  South  and Central
                                    Texas

Signed on: October 31, 2007
Buyer                                   Seller