| 1 | B & B Tool Company Inc | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2025 |
| 2 | B & C Drilling Company Inc | Holdenville, OK 74848-0961 | Oil & Gas Operator | Mar 2000 |
| 3 | B & O Drilling Inc | Ada, OK 74820-8065 | Oil & Gas Operator | Sep 2014 |
| 4 | B & W Operating, L.L.C. | Nichols Hill, OK 73116 | Oil & Gas Operator | Jul 2025 |
| 5 | B B R Oil Corporation | Norman, OK 73069 | Oil & Gas Operator | Jun 2025 |
| 6 | Bacon Fred Estate Of | Glenpool, OK 74033-9802 | Oil & Gas Operator | Apr 2020 |
| 7 | Bargo Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2014 |
| 8 | Barrett Oil Co. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2023 |
| 9 | Baxter And Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Jun 2025 |
| 10 | Bear Petroleum Inc | Haysville, KS 67060-0438 | Oil & Gas Operator | Mar 2015 |
| 11 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Jun 2025 |
| 12 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 13 | Becsul Energy Inc | Oklahoma City, OK 73127-4249 | Oil & Gas Operator | Jun 2025 |
| 14 | Bentley & Laing | Wichita Falls, TX 76302 | Oil & Gas Operator | Feb 2002 |
| 15 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 16 | Berry, Thomas N. & Co. | Stillwater, OK 74076 | Oil & Gas Operator | Feb 2012 |
| 17 | Bertschinger Oil Company | Oklahoma City, OK 73116-6534 | Oil & Gas Operator | Nov 2015 |
| 18 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 19 | Bill Weems Oil LLC | Seminole, OK 74868 | Oil & Gas Operator | Jun 2025 |
| 20 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Jun 2025 |
| 21 | Birks Robert L Dba Birks Production | Asher, OK 74826-9633 | Oil & Gas Operator | Jun 2025 |
| 22 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 23 | Black Jewel Resources LTD Co | Berryville, AR 72616-0538 | Oil & Gas Operator | Dec 2014 |
| 24 | Black Lava Operating LLC | | Oil & Gas Operator | Jun 2025 |
| 25 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 26 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Oct 2025 |
| 27 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Oct 2025 |
| 28 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Oct 2025 |
| 29 | Bo-MC Operating Corporation | Enid, OK 73702-1765 | Oil & Gas Operator | Mar 2018 |
| 30 | Bo-MC Resources Corporation | Enid, OK 73702-1765 | Oil & Gas Operator | Apr 2005 |
| 31 | Bobwhite Production Company, Inc | Tulsa, OK 74112 | Oil & Gas Operator | May 2025 |
| 32 | Bolen Russell Dba Teresa Energy | Konawa, OK 74849 | Oil Operator | Jun 2025 |
| 33 | Boone Operating LLC | Oklahoma City, OK 73118-6014 | Oil & Gas Operator | May 2025 |
| 34 | Boswell Energy Corp. | Oklahoma City, OK 73114-7401 | Oil & Gas Operator | Nov 2004 |
| 35 | Box Energy Company | Dallas, TX 75244 | Oil & Gas Operator | Jun 2003 |
| 36 | Boxie Oil Co | Asher, OK 74826-0243 | Oil & Gas Operator | Feb 2008 |
| 37 | Boyce Producing Corporation | Edmond, OK 73012-4323 | Oil & Gas Operator | Mar 2015 |
| 38 | Brady Oil Company Inc | Sasakwa, OK 74867-9723 | Oil Operator | Jun 2017 |
| 39 | Brady Production | Saskawa, OK 74867-9723 | Oil & Gas Operator | Aug 2019 |
| 40 | Brady Warnie E | Sasakwa, OK 74867 | Oil Operator | Mar 2004 |
| 41 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 42 | Branson Production Company | Oklahoma City, OK 73123-1323 | Oil & Gas Operator | Aug 2002 |
| 43 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 44 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Jun 2025 |
| 45 | Brewer J E | Seminole, OK 74818-0863 | Oil & Gas Operator | Mar 2014 |
| 46 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 47 | Briscoe Oil Operating Co., Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Mar 2015 |
| 48 | Britt Oil Company LLC | Shawnee, OK 74801-9613 | Oil & Gas Operator | Jun 2025 |
| 49 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 50 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Oct 2025 |
| 51 | Brown Gary E | Tecumseh, OK 74873-0355 | Oil & Gas Operator | Aug 2015 |
| 52 | Brown Jr Roy M | Sasakwa, OK 74867 | Oil Operator | Nov 2016 |
| 53 | Brown L C Company | Ada, OK 74820-7916 | Oil & Gas Operator | Nov 2021 |
| 54 | Bryant D G And Company | Midlothian, TX 76065-3628 | Oil & Gas Operator | Mar 2025 |
| 55 | Bulldog Production Inc | Seminole, OK 74868 | Oil Operator | Nov 2024 |
| 56 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 57 | Byng Operating LLC | Ada, OK 74820-0677 | Oil & Gas Operator | Jun 2025 |