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