| 1 | B & H Oil Company | Oklahoma City, OK 73108 | Oil & Gas Operator | Jan 2025 |
| 2 | B & O Drilling Inc | Ada, OK 74820-8065 | Oil & Gas Operator | Sep 2014 |
| 3 | B B & B Oil Co | Tulsa, OK 74114 | Oil & Gas Operator | Mar 2014 |
| 4 | B B R Oil Corporation | Ardmore, OK 73401-6515 | Oil & Gas Operator | Mar 2026 |
| 5 | Baca Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2000 |
| 6 | Bacon Fred Estate Of | Glenpool, OK 74033-9802 | Oil & Gas Operator | Apr 2020 |
| 7 | Bailey David A | Mounds, OK 74047 | Oil & Gas Operator | Feb 2026 |
| 8 | Bailey Michael L & Pamela D Dba MPB Oil & Gas | Paden, OK 74860-9789 | Oil & Gas Operator | Mar 2026 |
| 9 | Baker Oil & Gas | St Louisville, OH 43071 | Oil & Gas Operator | Sep 2014 |
| 10 | Bank Oil Services | Muskogee, OK 74403-4025 | Oil & Gas Operator | Mar 2020 |
| 11 | Barnes Exploration Co. | Nashville, TN 37209 | Oil & Gas Operator | Feb 1995 |
| 12 | Barnett John | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2026 |
| 13 | Barrett Oil LLC | Muskogee, OK 74403 | Oil Operator | Feb 2026 |
| 14 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 15 | Becktol Linda G | Morris, OK 74445 | Oil & Gas Operator | Jun 2025 |
| 16 | Belisle Pete H | Tulsa, OK 74133 | Oil & Gas Operator | Apr 2015 |
| 17 | Bell Jack | Beggs, OK 74421-2107 | Oil & Gas Operator | Apr 2020 |
| 18 | Belport Oil Inc | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2026 |
| 19 | Benchmark Resources Group LTD | Sapulpa, OK 74066-3238 | Oil & Gas Operator | Dec 2000 |
| 20 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jun 2026 |
| 21 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Jun 2026 |
| 22 | Bertschinger Oil Company | Oklahoma City, OK 73116-6534 | Oil & Gas Operator | Nov 2015 |
| 23 | Beta Operating Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2020 |
| 24 | Betty L Wood Dba Able Oil Company | Morris, OK 74445-2303 | Oil & Gas Operator | Feb 2026 |
| 25 | Biddy Audrian Q | Okemah, OK 74859 | Oil & Gas Operator | Aug 2013 |
| 26 | Big Sky Exploration LLC | Dana Point, CA 92629-2889 | Oil Operator | Apr 2020 |
| 27 | Bilbe Operating Company | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2003 |
| 28 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Mar 2026 |
| 29 | Bison Petroleum Inc | Tulsa, OK 74137 | Oil & Gas Operator | Nov 2004 |
| 30 | Black Energy LLC | Okmulgee, OK 74447 | Oil Operator | Feb 2026 |
| 31 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 32 | Blackrock Energy LLC | Wagoner, OK 74467 | Oil Operator | Apr 2025 |
| 33 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Jun 2026 |
| 34 | BMC Petroleum Inc | Enid, OK 73701-2700 | Oil & Gas Operator | Mar 2026 |
| 35 | Bogie A W & Deem G A | Boynton, OK 74422 | Oil & Gas Operator | Jan 2007 |
| 36 | Bona Tangent LLC | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2026 |
| 37 | Bonnell Frank A | Stuart, OK 74570-5514 | Oil & Gas Operator | Dec 2021 |
| 38 | Boone Operating LLC | Oklahoma City, OK 73118-6014 | Oil & Gas Operator | Feb 2026 |
| 39 | Booth John H Inc | Tulsa, OK 74170 | Oil Operator | Sep 2019 |
| 40 | Bracksieck Lloyd H | Boulder, CO 80303 | Oil & Gas Operator | Feb 2019 |
| 41 | Bricar Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Nov 1998 |
| 42 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 43 | Brock Exploration Corp | New Orleans, LA 70112-1707 | Oil & Gas Operator | Jan 1999 |
| 44 | Broken Feather Energy LLC | Haskell, OK 74436-2482 | Oil Operator | Feb 2026 |
| 45 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 46 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Jun 2026 |
| 47 | Brown Dorla M Trust | Tulsa, OK 74133-2926 | Oil & Gas Operator | Dec 2021 |
| 48 | Brown Drilling Company | Mounds, OK 74047-4263 | Oil & Gas Operator | Oct 2020 |
| 49 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2026 |
| 50 | Byars Bill Inc | Okmulgee, OK 74447-0850 | Oil & Gas Operator | Apr 2015 |