| 1 | B & S Oil Company | Kermit, TX 79745 | Oil & Gas Operator | May 2025 |
| 2 | B M Energy, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2022 |
| 3 | B R Polk Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2025 |
| 4 | Ballew Oil & Gas Inc | Yale, OK 74085 | Oil Operator | Sep 1995 |
| 5 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Jul 2025 |
| 6 | Baron Exploration Company | Edmond, OK 73034 | Oil & Gas Operator | Jul 2025 |
| 7 | Barrett Drilling Company | Shawnee, OK 74802-1345 | Oil & Gas Operator | Jun 2013 |
| 8 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 9 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2025 |
| 10 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2025 |
| 11 | Bce-Mach LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | May 2025 |
| 12 | Be Anadarko LLC | Wimberley, TX 78676-4418 | Oil & Gas Operator | Jan 2024 |
| 13 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 14 | Beck Pump & Supply Inc | Hennessey, OK 73742-0175 | Oil & Gas Operator | Nov 2019 |
| 15 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Apr 2025 |
| 16 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 17 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 18 | Belisle Pete H | Tulsa, OK 74133 | Oil & Gas Operator | Apr 2015 |
| 19 | Bell & Kinley Company LLC | Piedmont, OK 73078-8918 | Oil & Gas Operator | Jul 2021 |
| 20 | Bell Supply Co | Kilgore, TX 75662 | Oil & Gas Operator | Jan 2013 |
| 21 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Jul 2025 |
| 22 | Bergen Floyd | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 23 | Beta Operating Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2020 |
| 24 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 25 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 26 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 27 | Big Creek Energy LLC | Kingfisher, OK 73750-3102 | Oil & Gas Operator | May 2025 |
| 28 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Apr 2025 |
| 29 | Black Bear Properties LLC | Oklahoma City, OK 73156-1904 | Oil & Gas Operator | Feb 2013 |
| 30 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 31 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Jul 2025 |
| 32 | Blaik Oil Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2009 |
| 33 | Blair Oil Company | Kingfisher, OK 73750-1213 | Oil & Gas Operator | May 2025 |
| 34 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 35 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | May 2025 |
| 36 | Bluebonnet Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Apr 2025 |
| 37 | Bluebonnet Oil LLC | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | May 2025 |
| 38 | Bluemark Energy, LLC | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2025 |
| 39 | BMC Petroleum Inc | Enid, OK 73701-2700 | Oil & Gas Operator | May 2025 |
| 40 | BMW Group Inc (The) | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2013 |
| 41 | Bo-MC Operating Corporation | Enid, OK 73702-1765 | Oil & Gas Operator | Mar 2018 |
| 42 | Bob & Son Oil Company | Hennessey, OK 73742-0578 | Oil & Gas Operator | Jul 2017 |
| 43 | Bobwhite Production Company, Inc | Tulsa, OK 74112 | Oil & Gas Operator | Apr 2025 |
| 44 | Bogo Energy Corporation | Oklahoma City, OK 73134-1002 | Oil & Gas Operator | May 2025 |
| 45 | Boswell Energy Corp. | Oklahoma City, OK 73114-7401 | Oil & Gas Operator | Nov 2004 |
| 46 | Bowles Jack P F | Edmond, OK 73083-3285 | Oil & Gas Operator | Sep 2021 |
| 47 | Box Energy Company | Dallas, TX 75244 | Oil & Gas Operator | Jun 2003 |
| 48 | Boxie Oil Co | Asher, OK 74826-0243 | Oil & Gas Operator | Feb 2008 |
| 49 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 50 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 51 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 52 | Breitling Operating Corporation | Dallas, TX 75201 | Oil & Gas Operator | Aug 2016 |
| 53 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 54 | BRG Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2020 |
| 55 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | May 2025 |
| 56 | Briscoe Oil Company | Kingfisher, OK 73750-2322 | Oil & Gas Operator | Apr 2014 |
| 57 | Briscoe Oil Operating Co., Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Mar 2015 |
| 58 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 59 | Bromar Oil Company | Fairview, OK 73737-0006 | Oil & Gas Operator | Apr 2014 |
| 60 | Brooks E L | Edmond, OK 73034-6882 | Oil & Gas Operator | May 2009 |
| 61 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2025 |
| 62 | Brown & Borelli, Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Jul 2025 |
| 63 | Brown Jeff J Dba Brown Service Co | Enid, OK 73701 | Oil & Gas Operator | May 2025 |
| 64 | Bryant Joe | Helena, OK 73741 | Oil & Gas Operator | Apr 1998 |
| 65 | Buchanan Wayman W | San Antonio, TX 78212 | Oil & Gas Operator | Sep 1990 |
| 66 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 67 | Burkhart Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2002 |
| 68 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Jul 2025 |
| 69 | Butkin Oil Company | Duncan, OK 73534-2090 | Oil & Gas Operator | Sep 2021 |
| 70 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 71 | BVD Inc | Yates Center, KS 66783-0194 | Oil & Gas Operator | May 2025 |
| 72 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 73 | Byng Operating LLC | Ada, OK 74820-0677 | Oil & Gas Operator | Apr 2025 |