| 1 | B & B Resources Inc | Somerset, KY 42501 | Oil & Gas Operator | Dec 2019 |
| 2 | B & W Operating, L.L.C. | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |
| 3 | B-J Enterprises Inc | McAlester, OK 74501-7335 | Oil & Gas Operator | Apr 2014 |
| 4 | Bailey Michael L & Pamela D Dba MPB Oil & Gas | Paden, OK 74860-9789 | Oil & Gas Operator | Dec 2025 |
| 5 | Baker Eberle Energy Corp | Blackwell, OK 74631 | Oil & Gas Operator | Mar 2015 |
| 6 | Baker Oil & Gas | St Louisville, OH 43071 | Oil & Gas Operator | Sep 2014 |
| 7 | Ballew Oil & Gas Inc | Yale, OK 74085 | Oil Operator | Sep 1995 |
| 8 | Bank Oil Services | Muskogee, OK 74403-4025 | Oil & Gas Operator | Mar 2020 |
| 9 | Barta Enterprises | Oklahoma City, OK 73162-1728 | Oil & Gas Operator | Nov 2025 |
| 10 | Baruch Foster Corporation | Oklahoma City, OK 73126-6770 | Oil & Gas Operator | Feb 2001 |
| 11 | Baugh Allan L | Drumright, OK 74030-5914 | Oil & Gas Operator | Dec 2025 |
| 12 | Bay Petroleum Corporation | Lakewood, FL 34202-2852 | Oil & Gas Operator | Mar 2015 |
| 13 | BD Operating LLC | Artesia, NM 88210 | Oil & Gas Operator | Dec 2025 |
| 14 | Bear Energy LLC | Drumright, OK 74030-0311 | Oil & Gas Operator | Apr 2022 |
| 15 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 16 | Becca Oil LLC | Cushing, OK 74023-1347 | Oil & Gas Operator | Nov 2025 |
| 17 | Beck Pump & Supply Inc | Hennessey, OK 73742-0175 | Oil & Gas Operator | Nov 2019 |
| 18 | Becsul Energy | Oklahoma City, OK 73127 | Oil Operator | Jan 1992 |
| 19 | Becsul Energy Inc | Oklahoma City, OK 73127-4249 | Oil & Gas Operator | Nov 2025 |
| 20 | Bell Supply Co | Kilgore, TX 75662 | Oil & Gas Operator | Jan 2013 |
| 21 | Belport Oil Inc | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2025 |
| 22 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 23 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 24 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 25 | Berger Oil Company | Edmond, OK 73013-2044 | Oil Operator | Mar 2015 |
| 26 | Berry Operating Company | Stillwater, OK 74076-0518 | Oil & Gas Operator | Dec 2016 |
| 27 | Berry Thomas E | | Oil & Gas Operator | Feb 2004 |
| 28 | Berry, Thomas N. & Co. | Stillwater, OK 74076 | Oil & Gas Operator | Feb 2012 |
| 29 | Bertschinger Oil Company | Oklahoma City, OK 73116-6534 | Oil & Gas Operator | Nov 2015 |
| 30 | Big Four Leasing & Operating Inc | Cushing, OK 74023 | Oil & Gas Operator | Nov 2025 |
| 31 | Big Four Petroleum Company | Cushing, OK 74023 | Oil & Gas Operator | Nov 2004 |
| 32 | Big Lime Energy LTD | Medford, OK 73759-0009 | Oil & Gas Operator | Mar 2015 |
| 33 | Bilbe Operating Company | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2003 |
| 34 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Dec 2025 |
| 35 | Bison Petroleum Inc | Tulsa, OK 74137 | Oil & Gas Operator | Nov 2004 |
| 36 | BKR Operating LLC | Ripley, OK 74062-6524 | Oil & Gas Operator | Jul 2025 |
| 37 | Black Lava Operating LLC | | Oil & Gas Operator | Nov 2025 |
| 38 | Blackcat Oil Company | Glencoe, OK 74032 | Oil & Gas Operator | Dec 2025 |
| 39 | Blubaugh Ronald D | Tonkawa, OK 74653-0066 | Oil & Gas Operator | Sep 2014 |
| 40 | Blue Quail LTD | Wellston, OK 74881-0660 | Oil & Gas Operator | Jul 2015 |
| 41 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Feb 2026 |
| 42 | Boone Operating LLC | Oklahoma City, OK 73118-6014 | Oil & Gas Operator | Oct 2025 |
| 43 | Boswell Energy Corporation | Oklahoma City, OK 73114-7401 | Oil & Gas Operator | Nov 2004 |
| 44 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2025 |
| 45 | Brady Brothers | Cushing, OK 74023 | Oil Operator | Apr 2014 |
| 46 | Brady Company LLC (The) | Cushing, OK 74023 | Oil & Gas Operator | Dec 2025 |
| 47 | Branstetter Olin R | Ponca City, OK 74601-3432 | Oil Operator | Jul 2001 |
| 48 | Brenneis Oil Company | Norman, OK 73072-3963 | Oil & Gas Operator | Aug 2012 |
| 49 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Nov 2025 |
| 50 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 51 | BRG Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2020 |
| 52 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Dec 2025 |
| 53 | Brichacek Jerry Lee | Drumright, OK 74030-9777 | Oil & Gas Operator | Jan 2020 |
| 54 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 55 | Brittany Energy LLC | San Antonio, TX 78209 | Oil & Gas Operator | May 2019 |
| 56 | Brock SR Kirby L | Stillwater, OK 74074-7206 | Oil Operator | Mar 2013 |
| 57 | Bronco Petroleum Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 58 | Brooks Energy Company | Tulsa, OK 74114-3304 | Oil & Gas Operator | Jul 2008 |
| 59 | Brooks Hall Oil Corp | Oklahoma City, OK 73118 | Oil & Gas Operator | Nov 1998 |
| 60 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 61 | Brown Curt Operating Company | Tulsa, OK 74105 | Oil Operator | Nov 1998 |
| 62 | Brown Dorla M Trust | Tulsa, OK 74133-2926 | Oil & Gas Operator | Dec 2021 |
| 63 | Bso Inc | Cleveland, OK 74020 | Oil & Gas Operator | Dec 2025 |
| 64 | Buccaneer Petroleum Inc | Tonkawa, OK 74653-2513 | Oil & Gas Operator | Jan 2013 |
| 65 | Buntin Ronnie | Maramec, OK 74045-4500 | Oil & Gas Operator | Sep 2019 |
| 66 | Butler Petroleum Corp | Norman, OK 73069-7111 | Oil & Gas Operator | Dec 1998 |
| 67 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 68 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 69 | BWB Resources Inc | Colorado Springs, CO 80908-7204 | Oil & Gas Operator | Jan 2016 |
| 70 | Byng Energy Group Inc | Enid, OK 73703 | Oil & Gas Operator | Feb 2026 |