| 1 | B And C Oil Inc | | Oil & Gas Operator | Mar 2012 |
| 2 | B D Deans LLC | | Oil & Gas Operator | May 2009 |
| 3 | B H R Petroleum Inc | | Oil & Gas Operator | Apr 2006 |
| 4 | Bailer And Deshaw | | Oil Operator | Dec 2020 |
| 5 | Bailer Oil Company LLC | | Oil Operator | Dec 2024 |
| 6 | Baldwin And Baldwin Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1993 |
| 7 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 8 | Bateson Donald Jr | | Oil Operator | Dec 2024 |
| 9 | Battle Creek Gas Co | | Gas Operator | Mar 1996 |
| 10 | Bauer Bros | | Oil Operator | Sep 2025 |
| 11 | Baumann Resources Inc | | Oil Operator | Jul 1999 |
| 12 | Beckman Production Services Inc | | Oil Operator | Sep 2025 |
| 13 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 14 | Belden And Blake Corp Dba Ward Lake Energy | | Oil & Gas Operator | Jul 2020 |
| 15 | Bell And Gault Drilling Inc | | Oil & Gas Operator | Apr 2001 |
| 16 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 17 | Benchley Donald C | | Oil Operator | Jul 2012 |
| 18 | Benchley Donald P And Benchley Jeffrey P | | Oil Operator | Dec 2020 |
| 19 | Benelli Oil LLC | | Oil Operator | Dec 2024 |
| 20 | Bergman Arthur And VIvian | | Oil & Gas Operator | Dec 2008 |
| 21 | Binney Duane Dba Bens Petroleum Co | | Oil Operator | Apr 2012 |
| 22 | Black River Oil Corp And Golden Petroleum Corp | | Oil & Gas Operator | Dec 1989 |
| 23 | Black Star Energy Inc | | Oil Operator | May 2004 |
| 24 | Bloomingdale Oil LLC | | Oil Operator | Dec 2024 |
| 25 | Blue Bay Oil & Gas, L L C | | Gas Operator | Jan 2018 |
| 26 | Blue Lake Gas Storage Co | | Oil & Gas Operator | Oct 2016 |
| 27 | Bluewater Gas Storage LLC | | Oil Operator | Oct 2025 |
| 28 | Bob Adams And Associates Inc | | Oil & Gas Operator | Dec 1998 |
| 29 | Bott John A | | Gas Operator | Dec 2012 |
| 30 | Bourdeaux H J | | Oil Operator | Dec 2022 |
| 31 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 32 | Brandli Oil Inc | | Oil Operator | Sep 2025 |
| 33 | Breitburn Operating Limited Partnership | | Oil & Gas Operator | Aug 2022 |
| 34 | Brewer Robert A And Karen A | | Oil Operator | Oct 2025 |
| 35 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 36 | Bruce Alan Enterprises Inc | | Oil Operator | Sep 2025 |
| 37 | Bucky LTD | | Oil Operator | Dec 2020 |
| 38 | Burgess D M Jr And Hall H E And Stinson D E | | Oil Operator | May 2000 |
| 39 | Burgess Hall Stinson Inc | | Oil Operator | Dec 2009 |
| 40 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |