| 1 | B & B Oil & Gas Co., Inc. | | Gas Operator | Feb 1991 |
| 2 | B & M Operating Co., Inc. | Houston, TX 77006 | Oil & Gas Operator | Feb 2026 |
| 3 | Bagby Operating Co., Inc. | | Gas Operator | Aug 2001 |
| 4 | Barnett Serio | | Gas Operator | Oct 1992 |
| 5 | Bass-Franks | | Oil & Gas Operator | Jun 1997 |
| 6 | Bayles & White | | Gas Operator | Dec 2013 |
| 7 | Bayou Desiard Corporation | | Gas Operator | Dec 2002 |
| 8 | Bayou Gas Company Of Monroe La | | Gas Operator | Apr 2009 |
| 9 | Bengal Oil & Gas, Inc. | | Gas Operator | Mar 2006 |
| 10 | Bethlan Production Corporation | | Oil & Gas Operator | Dec 1994 |
| 11 | Biedenharn Et Al | | Gas Operator | Nov 1996 |
| 12 | Billy E. Bayles | | Oil & Gas Operator | Apr 1998 |
| 13 | Black Bayou Management Co Inc. | | Oil & Gas Operator | Aug 1980 |
| 14 | Blue Bird Oil & Gas Prod. Co. | | Gas Operator | Dec 2007 |
| 15 | Bradoil, Inc. | | Gas Operator | Feb 1991 |
| 16 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 17 | Brammer-Keystone Energy, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2000 |
| 18 | Branta Production Company LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2026 |
| 19 | Brookston Energy, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Feb 2026 |
| 20 | Bryant Oil & Gas Corporation | | Oil & Gas Operator | Mar 1987 |
| 21 | Burlington Res Oil & Gas LP | | Oil & Gas Operator | Mar 2013 |