UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 AND 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Period ____November 2005___

File No. 0-30952

SAN TELMO ENERGY LTD.

(Name of Registrant)

430 – 580 Hornby Street, Vancouver, British Columbia CANADA V6C 3B6

(Address of principal executive offices)

Amended Arrangement Agreement between San Telmo Energy and Rolling Thunder Exploration Ltd.

News Release dated November 18, 2005

Letter of Transmittal Form

Indicate by check mark whether the Registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

FORM 20-F XXX FORM 40-F ____

Indicate by check mark whether the Registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _____

No XXX

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Form 6-K to be signed on its behalf by the undersigned, thereunto duly authorized.

SAN TELMO ENERGY LTD

(Registrant)

Dated: December 29, 2005

Signed: /s/ Stan Herdman

Stan Herdman,

Chief Financial Officer

SAN TELMO ENERGY LTD 6-K