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Barrett Resources Corporation Black Hills Exploration and Production
Baytex Energy Ltd. Black Star Oil Company
Belco Oil & Gas Corp. Blue Dolphin Energy
Bellwether Exploration Company Boral
Benton Oil and Gas Company BP Amoco
Benz Energy Ltd. BRG Petroleum, Inc.
Berkley Petroleum Corp. Brigham Exploration Company
Berry Petroleum Company Brooklyn Union Group
Best Pacific Resources Ltd. Burlington Resources Inc.
BG plc BXL Energy Ltd.
BHP Petroleum Company