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                                 Gary R. Henrie
                                 Attorney at Law
8275 S. Eastern Ave., Suite 200                        Telephone:  702-616-3093
Las Vegas, NV  89123                                   Facsimile:  435-753-2947
                                                       E-mail:  gary@grhlaw.net
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October 13, 2006

Via EDGAR
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THE UNITED STATES SECURITIES
AND EXCHANGE COMMISSION
Mr. John D. Reynolds
Assistant Director
Division of Corporation Finance
Mail Stop 3561
Washington, D.C. 20549

         Re:      Pioneer Exploration Inc.
                  Registration Statement on Form SB-2
                  Filed July 13, 2006
                  File No. 333-135743

Dear Ladies and Gentlemen:

As outside counsel to Pioneer Exploration Inc., I have prepared this letter with
management  in response  to the  staff's  comment  letter  dated July 21,  2006,
regarding  the  matters  listed  above.  Also,  in  response  to your  comments,
management has filed amendment number one to the registration statement.

In response to the staff's comments,  management has added subsections  entitled
"History of Chilco River Holdings Inc." and "Rule 419" at the end of the section
titled  "Business" in the  registration  statement.  All staff  comments in your
letter dated July 21, 2006,  are  addressed  in the two new  subsections.  Other
changes to the registration statement in amendment number one are merely updates
to the filing to bring it current.

Very truly yours,


/s/ Gary R. Henrie

Gary R. Henrie