| 1 | B & H Oil Company | Oklahoma City, OK 73108 | Oil & Gas Operator | Jan 2025 |
| 2 | B & W Operating, L.L.C. | Nichols Hill, OK 73116 | Oil & Gas Operator | Feb 2026 |
| 3 | B And G Production, Inc. | Woodward, OK 73801 | Oil & Gas Operator | Apr 2026 |
| 4 | B M Energy, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2022 |
| 5 | Ballyoil Inc | Chickasha, OK 73018 | Oil & Gas Operator | Jul 2023 |
| 6 | Bannon Operating Inc | Houston, TX 77068 | Oil & Gas Operator | Sep 2003 |
| 7 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Aug 2003 |
| 8 | Baruch Foster Corporation | Oklahoma City, OK 73126-6770 | Oil & Gas Operator | Feb 2001 |
| 9 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Apr 2026 |
| 10 | Basin Operating Services LLC | Oklahoma City, OK 73106-5615 | Oil & Gas Operator | Jan 2026 |
| 11 | Bays Exploration Inc | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Feb 2026 |
| 12 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2026 |
| 13 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2026 |
| 14 | Bce-Mach LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Feb 2026 |
| 15 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 16 | Beck Oil & Gas, L.L.C. | Duncan, OK 73533 | Oil & Gas Operator | Jan 2026 |
| 17 | Beck Pump & Supply Inc | Hennessey, OK 73742-0175 | Oil & Gas Operator | Nov 2019 |
| 18 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 19 | Bell & Kinley Company LLC | Piedmont, OK 73078-8918 | Oil & Gas Operator | Jul 2021 |
| 20 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 21 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 22 | Beveled Edge Productions LLC | Norman, OK 73069-4941 | Oil Operator | Dec 2019 |
| 23 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 24 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 25 | Big Horn Oil Co Inc | Great Bend, KS 67530 | Oil & Gas Operator | May 2013 |
| 26 | Bison Energy Corporation | Wichita, KS 67206 | Oil & Gas Operator | Mar 2022 |
| 27 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2026 |
| 28 | Blue Cedar Energy LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 29 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Feb 2026 |
| 30 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Apr 2026 |
| 31 | Bluebonnet Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Feb 2026 |
| 32 | Bluebonnet Oil LLC | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Feb 2026 |
| 33 | Bluemark Energy, LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2026 |
| 34 | Bobwhite Production Company, Inc | Tulsa, OK 74112 | Oil & Gas Operator | Jan 2026 |
| 35 | Bogo Energy Corporation | Oklahoma City, OK 73134-1068 | Oil & Gas Operator | Feb 2026 |
| 36 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 37 | BP Explorationinc/Ofb See #17756 | | Oil & Gas Operator | Apr 2015 |
| 38 | Bradmar Petroleum Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2015 |
| 39 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 40 | Bravo Natural Resources, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2009 |
| 41 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 42 | Breitburn Operating LP | Keithville, LA 71047 | Oil & Gas Operator | Apr 2026 |
| 43 | Brenneis Energy | Duncan, OK 73533-5415 | Oil & Gas Operator | Sep 2025 |
| 44 | Brenneis Oil Company | Norman, OK 73072-3963 | Oil & Gas Operator | Aug 2012 |
| 45 | Brent Baker Oil And Gas Inc | Oklahoma City, OK 73149-2932 | Oil & Gas Operator | Jan 2026 |
| 46 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 47 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 48 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Feb 2026 |
| 49 | Bricktown Energy LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Jan 2026 |
| 50 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 51 | Brighton Energy, L.L.C. | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 52 | Briscoe Oil Operating Co., Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Mar 2015 |
| 53 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 54 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 55 | Bruce Weldon | Lawton, OK 73501-5707 | Oil & Gas Operator | Mar 2000 |
| 56 | Brundred Petroleum Inc | | Oil & Gas Operator | Nov 1992 |
| 57 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2026 |
| 58 | Bullseye Operating LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Feb 2026 |
| 59 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2026 |
| 60 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 61 | Buxton Fred M | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Feb 2007 |