Oil & Gas Companies in Wyoming
| Company Name | Company Location | Company Type | Most Recent Production |
| 101 | Bright Rock Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Nov 2024 |
| 102 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 103 | Briscoe Petroleum, LLC | Sheridan, WY 82801 | Oil & Gas Operator | Jul 2025 |
| 104 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 105 | Bronco Oil & Gas Co | Casper, WY 82602 | Oil & Gas Operator | Oct 1987 |
| 106 | Brooks Exploration, Inc. | Denver, CO 80293 | Oil & Gas Operator | Mar 2001 |
| 107 | Brower Oil & Gas Inc | Jenks, OK 74037 | Oil & Gas Operator | Nov 2022 |
| 108 | Brown & Bickerstaff | | Oil & Gas Operator | Oct 1991 |
| 109 | Brown Doug & Larita | Newcastle, WY 82701 | Oil & Gas Operator | Jun 2025 |
| 110 | Brown J K Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2003 |
| 111 | Brown Operating Inc | Casper, WY 82602 | Oil & Gas Operator | May 2019 |
| 112 | Brown Shirley | Buffalo, WY 82834 | Oil & Gas Operator | Oct 2010 |
| 113 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 114 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 115 | Buchanan Wayman W | San Antonio, TX 78212 | Oil & Gas Operator | Sep 1990 |
| 116 | Buck Creek Freight Inc | Lusk, WY 82225 | Oil Operator | Aug 2025 |
| 117 | Buffalo Resources LLC | Woodward, OK 73801 | Oil & Gas Operator | Aug 2025 |
| 118 | Bullock A O | Casper, WY 82604 | Oil & Gas Operator | Jul 2025 |
| 119 | Bullock Gladys C Trust | | Oil & Gas Operator | Dec 1999 |
| 120 | Bummer Bruce L | Casper, WY 82602 | Oil & Gas Operator | Dec 2007 |
| 121 | Bunkirt J J Oil & Gas Corporation | Powell, WY 82435 | Oil & Gas Operator | Aug 2025 |
| 122 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 123 | Burlington Resources Oil & Gas Company L | Gillette, WY 82718 | Oil & Gas Operator | Jan 2022 |
| 124 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 125 | Burr Oil & Gas Inc | Farmington, NM 87499 | Oil & Gas Operator | Oct 2019 |
| 126 | Butler Oil Co | Casper, WY 82602 | Oil & Gas Operator | Dec 1996 |
| 127 | BW Oil LLC | Hamel, MN 55340 | Oil Operator | Jun 2015 |
| 128 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 129 | BXP Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Oct 2025 |
| 130 | Byron Oil Industries Inc | Ballwin, MO 63011 | Oil & Gas Operator | Apr 2019 |
Production numbers shown above are only for Wyoming and for the production period listed.