Oil & Gas Companies in Natrona County, WY
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 2 | Bates Creek Oil | | Oil Operator | Dec 1986 |
| 3 | Beartooth Oil & Gas Company | Billings, MT 59103 | Oil & Gas Operator | Aug 2025 |
| 4 | Berco Resources LLC | Denver, CO 80206 | Oil & Gas Operator | Sep 2009 |
| 5 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 6 | BHP Petroleum (USA) Inc | | Oil & Gas Operator | Mar 1993 |
| 7 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 8 | Bill Barrett Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 9 | Black Bear Oil Corporation | Las Vegas, NV 89128 | Oil & Gas Operator | Aug 2025 |
| 10 | Black Gold Services Inc | Casper, WY 82644 | Oil & Gas Operator | Aug 2025 |
| 11 | Blue Tip Energy Wyoming Inc | Houston, TX 77284 | Oil Operator | Jun 2016 |
| 12 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 13 | BP Exploration Inc | | Oil & Gas Operator | May 1993 |
| 14 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 15 | Breitburn Energy Company LLC | Lakewood, CO 80227 | Oil Operator | Aug 2011 |
| 16 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 17 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 18 | Brooks Exploration, Inc. | Denver, CO 80293 | Oil & Gas Operator | Mar 2001 |
| 19 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 20 | Bummer Bruce L | Casper, WY 82602 | Oil & Gas Operator | Dec 2007 |
| 21 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |
| 22 | Burr Oil & Gas Inc | Farmington, NM 87499 | Oil & Gas Operator | Oct 2019 |
| 23 | Butler Oil Co | Casper, WY 82602 | Oil & Gas Operator | Dec 1996 |
Production numbers shown above are only for Natrona County, WY and for the production period listed.