Berenergy Corp

1888 Sherman Street # 600, Denver CO 80203-1160
(303) 295-2323

Berry Petroleum

235 Callahan Avenue, Parachute CO 81635-8708
(970) 285-2200

Berry Petroleum CO

1999 Broadway # 3700, Denver CO 80202-5703
(303) 999-4400

Bickerstaff Associates Inc

15518 Flowergate Way, Parker CO 80134-9591
(303) 841-4289

Bill Barrett Corp

1099 18th Street # 2300, Denver CO 80202-1939
(303) 293-9100

Bill Barrett Corp

112 Red Feather Trail, Silt CO 81652-6400
(970) 876-1959

Bison Energy Corp

2969 Wyecliff Lane, Littleton CO 80126-4555
(303) 470-8067

Black Coral Ltd

1825 Lawrence Street # 300, Denver CO 80202-1817
(303) 722-5833

Black Diamond Minerals, LLC

1600 Stout Street # 1710, Denver CO 80202-3160
303-973-3228

Rockies based oil and gas company with operations in Colorado and Wyoming

Black Hills Corp

350 Indiana Street # 400, Golden CO 80401-5096
(303) 476-5940

Black Raven Energy Inc

1125 17th Street # 2300, Denver CO 80202-2049
(303) 308-1330

Black Sand Energy Inc

1801 Broadway, Denver CO 80202-3800
(303) 339-8600

Blackbrush Energy Inc

6535 S Dayton Street # 1100, Greenwood Village CO 80111-6126
(303) 792-3340

Blackhills Exploration

2388 Leland Avenue, Grand Junction CO 81505-9451
(970) 257-0727

Bluffstone Assoc LLC

6589 S Blackhawk Way, Aurora CO 80016-3198
(303) 296-4199

Bluffstone Associates

3300 E 1st Avenue, Denver CO 80206-5810
(303) 296-4199

Bogus, Michael S

645 Main Avenue, Durango CO 81301-5423
(970) 382-9671

Boonenberg, W G

1801 Broadway, Denver CO 80202-3800
(303) 573-7080

Boreas Geophysical

3201 Boreas Pass Road, Breckenridge CO 80424
(970) 453-1992

Bowen Exploration Co

2525 Meadow Avenue, Boulder CO 80304-1632
(303) 786-7350

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