Gulfstar Energy Corporation 3410 Embassy Drive, West Palm Beach, FL 33401 Phone: 800-820-1632 October 22, 2010 Timberline Production Company, LLC 800 Werner Ct., Suite 220 Casper, WY 82601 (307) 577-7121 RE: Greasewood Field Dear Don and Bruce: GulfStar Energy Corporation (GulfStar) intends to purchase certain assets from Timberline Production Company (Timberline) in a cash transaction for the agreed upon price of $75,000,000.00 US for 100% of the Working Interest (WI) ($55,529,427.30 US for 74.0392364% WI) with an effective closing date on or before December 31st, 2010. Assets to be purchased. Assets owned by Timberline Production Co, Bruce Bummer, and Bob Selby in Greasewood Field, Niobrara County, WY represented to be as follows: 1. Greasewood Producing Unit - 74.0392364% WI, 60.68285186% NRI per the following schedule: - ------------------------------------- ---------------------------------- ---------------------------------- WI NRI - ------------------------------------- ---------------------------------- ---------------------------------- Timberline 43.9323884 36.00657339 - ------------------------------------- ---------------------------------- ---------------------------------- Bruce Bummer 23.22469610 19.03789317 - ------------------------------------- ---------------------------------- ---------------------------------- Bob Selby 6.8821519 5.6383853 - ------------------------------------- ---------------------------------- ---------------------------------- Total 74.0392364 60.68285186 - ------------------------------------- ---------------------------------- ---------------------------------- 2. Federal 14-26 - 68.75%WI, 60.01875% NRI per the following schedule: - ------------------------------------- ---------------------------------- ---------------------------------- WI NRI - ------------------------------------- ---------------------------------- ---------------------------------- Timberline 42.50 37.1025 - ------------------------------------- ---------------------------------- ---------------------------------- Bruce Bummer 19.6875 17.1871875 - ------------------------------------- ---------------------------------- ---------------------------------- Bob Selby 6.5625 5.7290625 - ------------------------------------- ---------------------------------- ---------------------------------- Total 68.75 60.01875 - ------------------------------------- ---------------------------------- ---------------------------------- 3. Greasewood producing field located in portions of Section 31 T39N R62W, Sections 26, 35 & 36 T39N R63W and Section 1, T38N R63W and Section 5 & 6 T38N R62W in Niobrara County, Wyoming. 4. Associated leases held by Timberline or its agent adjacent to the Greasewood Field in T39N R63 & T39N R62W, T38N R63W & T38N R62W, Niobrara County, Wyoming. Leases would be 81.95% NRI proportionately reduced by total WI owned by Timberline, Bruce Bummer and Bob Selby. 5. All surface and down hole equipment related to the Greasewood producing field including pump jacks, heater treaters, injection equipment for water flooding operations, meters and recording instrumentation, etc. Should Timberline, Bruce Bummer and Bob Selby find the foregoing acceptable, please sign this letter agreement in the space provided below. GulfStar's attorney will then draft a purchase and sale agreement for the parties' review. The parties agree that unless and until a definitive written purchase and sale agreement ("Definitive Written Agreement") shall have been executed by the parties, no party to this letter agreement shall be under any obligation whatsoever (legal or otherwise) to continue discussions or to conclude the referenced transaction or any other transaction. Unless the same are included in the Definitive Written Agreement, any communications (written or oral) may not be relied upon by any party to this letter agreement, nor anyone else, as the basis for taking any action, foregoing any opportunity or incurring any costs, and do not and will not create any obligations whatsoever on the part of any party hereto. by: by: --------------------------------------------- ----------------------------------------- Don Walters, Managing Member Robert McCann, CEO Timberline Production Company, LLC GulfStar Energy Corporation by: by: --------------------------------------------- ----------------------------------------- Bruce Bummer, Managing Member Bob Selby Timberline Production Company, LLC by: --------------------------------------------- Bruce Bummer