| 1 | Baber Oil Co., LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2025 |
| 2 | Bagby Energy LLC | Fort Smith, AR 72913 | Gas Operator | Apr 2010 |
| 3 | BDB LLC | Hennessey, OK 73742 | Oil & Gas Operator | Dec 2017 |
| 4 | Bear Productions Inc | Kinta, OK 74552 | Oil & Gas Operator | Jun 2025 |
| 5 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 6 | Benedum - Trees Oil Co | Chicago, IL 60673 | Oil & Gas Operator | Dec 2005 |
| 7 | Bergen Floyd | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 8 | Berry Operating Company | Stillwater, OK 74076-0518 | Oil & Gas Operator | Dec 2016 |
| 9 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 10 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 11 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 12 | Big Bend Oil Co | Hominy, OK 74035 | Oil & Gas Operator | Jan 2025 |
| 13 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2025 |
| 14 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Oct 2025 |
| 15 | Blue Water Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2025 |
| 16 | Bluebonnet Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Jun 2025 |
| 17 | Bluebonnet Oil LLC | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Jul 2025 |
| 18 | Bluemark Energy, LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jun 2025 |
| 19 | Bobwhite Production Company, Inc | Tulsa, OK 74112 | Oil & Gas Operator | May 2025 |
| 20 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 21 | Bravo Arkoma LLC | Tulsa, OK 74103-3100 | Oil & Gas Operator | Apr 2025 |
| 22 | Bravo Natural Resources, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2009 |
| 23 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Jun 2025 |
| 24 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 25 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2025 |
| 26 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Jul 2025 |
| 27 | Briar Oil & Gas - Oklahoma 1 LLC | Houston, TX 77027-9392 | Oil & Gas Operator | Jun 2025 |
| 28 | Bridger Petroleum Corp | | Oil & Gas Operator | Oct 1999 |
| 29 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 30 | Brooken Production Company LLC | Tulsa, OK 74170-1354 | Gas Operator | May 2025 |
| 31 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 32 | Bso Inc | Cleveland, OK 74020 | Oil & Gas Operator | Jun 2025 |
| 33 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |