| 1 | B & B Oil Well Service Company, Inc | | Oil Operator | Aug 1988 |
| 2 | B & M Resources, Inc. | | Oil Operator | Apr 1997 |
| 3 | B & W Exploration, Inc. | | Oil & Gas Operator | Dec 2000 |
| 4 | B. H. T. Production, LLC | | Oil & Gas Operator | Apr 2010 |
| 5 | Bailey, S. H. | | Oil & Gas Operator | Jul 1995 |
| 6 | Barnhart Co LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2025 |
| 7 | Barnhart Co. | Houston, TX 77056 | Oil & Gas Operator | Nov 2025 |
| 8 | Barton Oil, LLC | | Oil & Gas Operator | Jan 2014 |
| 9 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 10 | Bay Gas, LLC | | Oil & Gas Operator | Aug 2025 |
| 11 | Bean Resources, Inc | | Oil & Gas Operator | Aug 2006 |
| 12 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 13 | Beaver Operating Company, LLC | | Oil & Gas Operator | Sep 2025 |
| 14 | Belden & Blake | | Oil & Gas Operator | Feb 1988 |
| 15 | Belle Oil, Inc. | | Oil & Gas Operator | Jul 2025 |
| 16 | Betsy Production Company, Inc. | Magnolia, AR 71753 | Oil & Gas Operator | Aug 2025 |
| 17 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2025 |
| 18 | Big-Joe Operating, Co. | | Oil & Gas Operator | May 2017 |
| 19 | Biglane Operating Company | | Oil & Gas Operator | Aug 2025 |
| 20 | Black Gold Prod Co., Inc. | | Oil & Gas Operator | Feb 1998 |
| 21 | Black Horse Resources, LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2024 |
| 22 | Black Jack Oil Co Inc | Holliday, TX 76366 | Oil & Gas Operator | Sep 2025 |
| 23 | Black Snake Petroleum, LLC | | Oil & Gas Operator | Sep 2025 |
| 24 | Blackburn Operating Co., Inc. | | Oil & Gas Operator | Jun 2008 |
| 25 | Blue Valley Petroleum, LTD. | | Oil Operator | Jun 1991 |
| 26 | Bluff City Pipe & Supply Co. | | Oil Operator | Jan 1987 |
| 27 | Bob Bertolet Et Al | | Oil Operator | Jul 1992 |
| 28 | Bogue Homa Oil Production LLC | | Oil & Gas Operator | Aug 2025 |
| 29 | BPS Operating Services LLC | | Oil Operator | Jan 2005 |
| 30 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2025 |
| 31 | Breland, Leon | | Oil & Gas Operator | Feb 1991 |
| 32 | Briggs Operating Co | | Oil & Gas Operator | Nov 1998 |
| 33 | Brown, Edward L. | | Oil Operator | Sep 1980 |
| 34 | Browning & Welch, Inc | | Oil & Gas Operator | Mar 2005 |
| 35 | Bruxoil, Inc. | | Oil & Gas Operator | Aug 2025 |
| 36 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2025 |
| 37 | Bulldog Operating Company LLC | Shreveport, LA 71101-3680 | Oil & Gas Operator | Jun 2015 |
| 38 | Burnsed Oil Co., Inc. | | Oil & Gas Operator | Aug 2025 |