Exhibit 32.1


                           Section 1350 Certification


The undersigned, Bobby S. Shackouls, Chairman of the Board, President and Chief
Executive Officer of Burlington Resources Inc. ("Company"), hereby certifies
that the Annual Report of the Company on Form 10-K for the period ended December
31, 2004 (the "Report") (1) fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 and (2) the information
contained in the Report fairly presents, in all material respects, the financial
condition and the results of operations of the Company.



                                      /S/ BOBBY S. SHACKOULS
                                      ------------------------------------------
Dated: February 28, 2005              Bobby S. Shackouls
                                      Chairman of the Board, President and Chief
                                      Executive Officer


This certification shall not be deemed to be "filed" for the purpose of Section
18 of the Securities Exchange Act of 1934, as amended, and will not be
incorporated by reference into any registration statement filed under the
Securities Act of 1933, as amended, unless specifically identified therein as
being incorporated therein by reference.

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to Burlington Resources Inc. and will
be retained by Burlington Resources Inc. and furnished to the Securities and
Exchange Commission or its staff upon request.