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COPPERWELD BIMETALLICS LLC
Acquired by Fushi International in 2001 and name changed to Fushi Copperweld.



PETROVENTURES RESOURCES LTD
Dissolved March 1994.



PETROWEST MANAGEMENT SERVICES LTD
Dissolved May 1995.



PG&E GAS TRANSMISSION TEXAS CORP
Acquired by El Paso Corp in December 2000; see El Paso Field Services Co.



PG&E RESOURCES COMPANY
See El Paso Corporation.



PHILADELPHIA ELECTRIC CO
see Peco Energy Co.



PHILLIPS GAS GATHERING PROCESSING AND MARKETING - GPM
See Duke Energy Field Services



PHILLIPS PETROLEUM RESOURCES LIMITED
See Duke Energy Field Services



PICOR PIPELINE CO
See Kinder Morgan, Inc.



PICT PETROLEUM PLC
Acquired by Premier Oil Plc in 1995.



DISCOVERY PETROLEUM
Acquired by Premier Oil Plc in 1996.



DOME CANADA
Renamed Encor Energy Inc.



PLACID OIL COMPANY
Acquired by Oxy USA in December 1994. See Occidental Gas Corporation



PLAINS PETROLEUM COMPANY
Acquired by Williams Production RMT Company in July 1995.



POCO PETROLEUMS LIMITED
Acquired by Burlington Resources Inc in November 1999, see Burlington Resources Canada Ltd



POCATERRA ENERGY INC
Acquired by Buffalo Oil Corporation in December 2006



PORTAL PIPE LINE COMPANY
See Enbridge Pipelines North Dakota



POTASH COMPANY OF AMERICA
Acquired by the Potash Corp of Saskatchewan Inc in October 1993



POTASH COMPANY OF CANADA
Acquired by the Potash Corp of Saskatchewan Inc in October 1993



PP&L RESOURCES INC
See PPL Corp



PRAIRIE FIRE OIL & GAS LTD
Amalgamated with a subsidiary of Vermilion Energy Trust in June 2004



PRAIRIE PACIFIC ENERGY CORPORATION
Acquired by Pogo Producing Company's subsidiary Northrock Resources Ltd in 2006



PRECAMBRIAN SHIELD RESOURCES LTD
Acquired by Enerplus Energy Corporation. See Enerplus Resources Fund.



PREMIER CONSOLIDATED OILFIELDS PLC
Changed name to Premier Oil Plc in 1998.



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