<DOCUMENT>
<TYPE>EX-3.149
<SEQUENCE>73
<FILENAME>y86037exv3w149.txt
<DESCRIPTION>CERTIFICATE OF FORMATION OF PORCUPINE PRODUCTION
<TEXT>
<PAGE>

                                                                   EXHIBIT 3.149

                                                            STATE OF DELAWARE
                                                           SECRETARY OF STATE
                                                        DIVISION OF CORPORATIONS
                                                       FILED 11:30 AM 11/22/1999
                                                          991500349 - 3130476

CERTIFICATE OF FORMATION

OF

Porcupine Production, LLC

         1. The name of the limited liability company is Porcupine Production,
LLC

         2. The address of its registered office in the State of Delaware is
Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County
of New Castle. The name of its registered agent at such address is The
Corporation Trust Company.

         IN WITNESS WHEREOF, the undersigned have executed this Certificate of
Formation of Porcupine Production, LLC this 19th day of November, 1999.

                                          /s/ James C. Sevem
                                              --------------
                                              James C. Sevem

                                          Assistant Secretary/ Authorized Person


</TEXT>
</DOCUMENT>