| B E C Unit Study Group B. T. Operating Co. Babcock & Brown Energy Inc. Bahamas Petroleum Plc Bain Capital / Sankaty Advisors Bakersfield Energy Resources Inc. Balcones Production Co. Baltimore Natural Gas Inc. Bank of America Banque Paribas Bargo Energy Co. Barnes Oil & Gas LLC. Barrett Resources Corp. Basa Petrofound Basic Earth Science Systems Inc. Basin Petroleum Inc. Bataa Oil Inc. Baycorp Holdings Ltd. Bayou Petroleum Co. Beamon-Lundell Bear Paw Energy Inc. Belden & Blake Corp. Bellwether Bently Simonson Benz Energy Ltd. Berea Associates LLC. Berenbaum & Weinschienk PC. Bernt Ward Beryl Oil & Gas LP. Beusa Energy Inc. Bharat Petroleum Corp. Ltd. BHP Petroleum Inc. Bjork Lindley Little PC. Black Stone Minerals Blacksand Energy Inc. Bledsoe Petroleum Corp. Blue Chip Oil Blue Moon Exploration Co. BNG Inc. BNP Paribas Boggeln & Co. Bolt Energy Ltd. Bonanza Energy Ltd. Boney Enterprises Boral Energy Ltd. Borglum/Carter Royalty Interest Bounty Group Inc. Bowerman, Bowden & Moothart BP PLC. Brammer-Keystone Energy LLC. Breaker Energy Breitburn Energy Co. LLC. Bridge Oil (U.S.A.) Inc. Bridgemark Corp. Brigham Exploration Co. Bristow Hackerman Peterson PC. British Borneo Exploration Inc. Broad Street Financial Co. Brooks Exploration Inc. Browning Oil Company Inc. BTA Oil Producers Buckley & Mathews LLP. Bunnell, Woulfe, Kirschbaum, Kell Burns, Figa & Will PC. Butler & Binion BWAB Inc. |
B J Services BA Properties Inc. Badger Oil Corp. Baker Hughes Inc. Bakrie Minerak Energy Inc. Ballard & Associates Inc. Banc One Bankers Trust Barclays Capital Bariven SA. Barons Capital Inc. Barrow Worley Resources Basa Resources Inc. Basin Exploration Inc. Bass Enterprises Production Co. Batoche Energy Corp. Bayerusche Hypo-Und Vereinsbank A Baytex Energy Trust Bear Cub Energy LLC. Bearspaw Vista Resources Ltd. Bellmeade Capital Partners LLC. Benson-McCown and Co. Benton Oil and Gas Co. Berco Resources Inc. Berea Oil & Gas Corp. Berenergy Corp. Berry Petroleum Co. Beta Oil & Gas Inc. BGT Green Valley Energy Project BHP Billiton Petroleum Bill Barrett Corp. Black Stone Energy Co. Blackhawk Oil & Gas Ltd. Blackwell Operating Co. Blue Berry First Nations Blue Dolphin Energy Co. Bluerock Group BNP Oil & Gas Properties Ltd. BNP Petroleum Corp. Bold Energy LP. Bonanza Creek Oil Co. LLC. Bonavista Energy Trust Bonneville Fuel Corp. Border to Border Exploration LLC. Boundry Creek Resources Ltd. Bow Valley Energy Ltd. Boyd & McWilliams Energy Group Bradlely Energy U.S.A. Brazalta Resources Corp. Brechtel Energy Corp. Bridas Corp. Bridge Resources Corp. Briggs-Cockerham LLC. Brimm Energy Corp. British Acadian Ltd. Inc. British Gas and Exploration Inc. Brock Exploration Corp. Broughton Associates JV. BT Alex Brown Buck Creek Associates Bula Resources Ltd. Burlington Resources Burren Energy PLC. Butler, Snow, O'Mara, Stevens & Co. Byers Petroleum Inc. |