| 1 | 007 Operating LLC | | Oil & Gas Operator | Dec 2022 |
| 2 | 10 To 1 Productions Inc | Kansas City, MO 64114-5149 | Oil & Gas Operator | Aug 2016 |
| 3 | 101 Energy Corporation | Oklahoma City, OK 73102-4803 | Oil & Gas Operator | Jan 2023 |
| 4 | 183 Disposal LLC | | Oil Operator | Jun 2021 |
| 5 | 1978 Investments LLC | | Oil Operator | Dec 2022 |
| 6 | 2-J Operating | Iowa Park, TX 76367 | Oil Operator | Dec 2004 |
| 7 | 212 Operating Inc | Byron, OK 73722-9528 | Oil & Gas Operator | Jan 2016 |
| 8 | 21ST Century Investment Co | Tulsa, OK 74114-4220 | Oil & Gas Operator | Oct 2022 |
| 9 | 3 BC Co Inc | Cushing, OK 74023-1268 | Oil & Gas Operator | Mar 2022 |
| 10 | 3 H Operating Company LLC | | Oil Operator | Dec 2022 |
| 11 | 306 Oil Investment Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2005 |
| 12 | 3D Oil Company, LLC | Corpus Chrsti, TX 78406 | Oil & Gas Operator | Mar 2023 |
| 13 | 3fearns LLC | | Oil & Gas Operator | Dec 2022 |
| 14 | 3M Production Inc | Guthrie, OK 73044-1246 | Oil & Gas Operator | Jan 2023 |
| 15 | 3R Oil Corporation | Healdton, OK 73438-0306 | Oil Operator | Apr 2022 |
| 16 | 3tec Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2019 |
| 17 | 4 Of Us Resources LLC | Oklahoma City, OK 73170 | Oil & Gas Operator | Jul 2017 |
| 18 | 4 T Energy LLC | | Oil & Gas Operator | Dec 2022 |
| 19 | 4D'S Operating Co LLC (The) | Ratliff City, OK 73481-0304 | Oil Operator | Dec 2022 |
| 20 | 4G Operating LLC | | Gas Operator | Aug 2022 |
| 21 | 4J Energy LLC | Houston, TX 77079 | Gas Operator | Aug 2022 |
| 22 | 56 Oil & Gas LTD | Norman, OK 73070-4065 | Oil Operator | May 2018 |
| 23 | 7C Land & Minerals Co | Ada, OK 74821-1391 | Oil & Gas Operator | Jan 2023 |
| 24 | 7H Operating LLC | | Oil & Gas Operator | Dec 2022 |
| 25 | A & A Oil Company | Luling, TX 78648 | Oil & Gas Operator | Oct 2009 |
| 26 | A & A Tank Truck Company | Norman, OK 73070-8969 | Oil & Gas Operator | Jan 2023 |
| 27 | A & B Oil & Gas Properties Inc | Sapulpa, OK 74067-0217 | Oil & Gas Operator | Apr 2011 |
| 28 | A & H Disposal Inc | Lindsay, OK 73052-0456 | Oil & Gas Operator | Jul 2019 |
| 29 | A & T Oil Company | Midland, TX 79707 | Oil & Gas Operator | Sep 2008 |
| 30 | A & T Production Company | Wheat Ridge, CO 80034-1048 | Oil & Gas Operator | Jun 2009 |
| 31 | A & W Operating Inc | Drumright, OK 74030-5789 | Oil & Gas Operator | Mar 2015 |
| 32 | A E W Inc | Fayetteville, AR 72703 | Oil & Gas Operator | Mar 2015 |
| 33 | A H & L Operating Company Inc | Norman, OK 73070-4084 | Oil & Gas Operator | Apr 2015 |
| 34 | A J Acid Inc | Blackwell, OK 74631-0758 | Oil & Gas Operator | Dec 2012 |
| 35 | A J Oil And Gas | Oilton, OK 74052-0112 | Oil & Gas Operator | Jun 2012 |
| 36 | A J S Oil Corporation | Oklahoma City, OK 73112-4799 | Oil & Gas Operator | Jul 2004 |
| 37 | A K Holdings Inc | Scottsdale, AZ 85254 | Oil & Gas Operator | Mar 2011 |
| 38 | A M P S Oil & Gas Company | Oologah, OK 74053 | Oil & Gas Operator | Nov 1998 |
| 39 | A R W Exploration Corp | Stillwater, OK 74076 | Oil & Gas Operator | May 2013 |
| 40 | A S B Oil & Gas Exploration LLC | Sand Springs, OK 74063-1508 | Oil & Gas Operator | Nov 2021 |
| 41 | A T Oil | Bartlesville, OK 74003 | Oil Operator | Mar 1996 |
| 42 | A-1 Oil Operators | Beggs, OK 74421-0329 | Oil & Gas Operator | Jan 2013 |
| 43 | A-1 Well Service | Coffeyville, KS 67337-9578 | Oil & Gas Operator | Mar 2021 |
| 44 | Aaa Oil & Gas Inc | Pauls Valley, OK 73075-0863 | Oil Operator | Mar 2000 |
| 45 | Aardvark Oil Company | Dallas, TX 75240-3408 | Oil & Gas Operator | Sep 2018 |
| 46 | Aaron Arnold B | Sulphur, OK 73086-6853 | Oil & Gas Operator | May 2004 |
| 47 | Aaron Oil Company | Shawnee, OK 74801-2321 | Oil Operator | Oct 2022 |
| 48 | Aaron Well Service Inc | | Gas Operator | Jan 2023 |
| 49 | Abarr Trust (The) | Oklahoma City, OK 73123-0084 | Oil & Gas Operator | Jan 2023 |
| 50 | ABC Oil & Gas | Morris, OK 74445-0273 | Oil & Gas Operator | Dec 2022 |
| 51 | ABC Oil Co. | Wichita Falls, TX 76307-1469 | Oil & Gas Operator | Jan 2023 |
| 52 | Abercrombie A L Inc | Wichita, KS 67202 | Oil & Gas Operator | Nov 2022 |
| 53 | Aberdeen Petroleum (USA) Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1994 |
| 54 | Ablaze Drilling Company | Garland, TX 75044-2912 | Oil & Gas Operator | Aug 2013 |
| 55 | Abng Inc | Chickasha, OK 73023-0926 | Oil & Gas Operator | Feb 2017 |
| 56 | Abps Energy Inc | Chickasha, OK 73023-1658 | Oil & Gas Operator | Apr 2015 |
| 57 | Abraxas Petroleum Corporation | San Antonio, TX 78258 | Oil & Gas Operator | Mar 2023 |
| 58 | Abraxas Production Corporation | San Antonio, TX 78270 | Oil & Gas Operator | Sep 1999 |
| 59 | Abundance Energy LLC | | Oil & Gas Operator | Jul 2018 |
| 60 | Ac Oil & Gas LLC | | Oil & Gas Operator | Jan 2023 |
| 61 | Ac Operating Company LLC | | Oil Operator | Jan 2023 |
| 62 | Access Petroleum Corporation | Oklahoma City, OK 73120-7778 | Oil & Gas Operator | Mar 2015 |
| 63 | Acelco Inc | Norman, OK 73070 | Oil & Gas Operator | Oct 1996 |
| 64 | Ackley Earl H & Glenora Trust | Cushing, OK 74023-5230 | Oil & Gas Operator | Mar 2015 |
| 65 | Acme Gathering Systems | Chickasha, OK 73023 | Oil & Gas Operator | Dec 2009 |
| 66 | Acoma Oil Corporation | Fort Worth, TX 76108 | Oil & Gas Operator | Mar 2023 |
| 67 | Acott II Melvin E | Hominy, OK 74035 | Oil & Gas Operator | Aug 2014 |
| 68 | Action Petroleum Service Corp | Ardmore, OK 73401-9282 | Oil Operator | Dec 2022 |
| 69 | Ada Energy E & P LLC | | Oil Operator | Dec 2022 |
| 70 | Adams Evertte | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 71 | Adams Res & Energy Co | Houston, TX 77001-0844 | Oil & Gas Operator | Mar 2015 |
| 72 | Adams Resources Expl. Corp. | Houston, TX 77001 | Oil & Gas Operator | Apr 2020 |
| 73 | Adeco Energy Corporation | Norman, OK 73071 | Oil & Gas Operator | Apr 2014 |
| 74 | Adkins Jim | Weleetka, OK 74880-8057 | Oil & Gas Operator | Apr 2020 |
| 75 | Admiral Resource Inc | Broken Arrow, OK 74012 | Oil & Gas Operator | Apr 2020 |
| 76 | Admirals Oil Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 77 | Adobe Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 1993 |
| 78 | Adobe Oil Company | Midland, TX 79701 | Oil & Gas Operator | Mar 2015 |
| 79 | Adobe Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
| 80 | Adparo LLC | | Oil & Gas Operator | Jan 2023 |
| 81 | Adsit Forest | Mannford, OK 74044 | Oil & Gas Operator | Mar 2015 |
| 82 | Advance Oil Corporation | Kiefer, OK 74041-4105 | Oil & Gas Operator | Jan 2023 |
| 83 | Advent Oil & Operating Inc | Gulfport, MS 39506-7115 | Oil & Gas Operator | Nov 2014 |
| 84 | Adventure Properties Inc | Seminole, OK 74868-1296 | Oil & Gas Operator | Dec 2022 |
| 85 | Aei Corporation-Oklahoma | Oklahoma City, OK 73101-1945 | Oil & Gas Operator | Sep 2014 |
| 86 | Aei Production Company | Edmond, OK 73083 | Oil & Gas Operator | Mar 2014 |
| 87 | Aeon Energy Inc | Claremore, OK 74017 | Oil Operator | May 2009 |
| 88 | Aethon I LP | Dallas, TX 75206 | Oil & Gas Operator | Mar 2015 |
| 89 | Aetna Oil Co | Pawhuska, OK 74056 | Oil & Gas Operator | Mar 2015 |
| 90 | Aexco Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2023 |
| 91 | Afo LLC | Velma, OK 73491-0155 | Oil & Gas Operator | Dec 2022 |
| 92 | Agape Inc | Broken Arrow, OK 74011-4256 | Oil & Gas Operator | Dec 2022 |
| 93 | Agar & Agar Inc | Norman, OK 73070 | Oil & Gas Operator | Oct 1996 |
| 94 | Agate Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2015 |
| 95 | Agave Energy, Inc | Stigler, OK 74462 | Oil & Gas Operator | Aug 2022 |
| 96 | Agent Oil Corporation | Bison, OK 73720-0116 | Oil & Gas Operator | Mar 2005 |
| 97 | Aggie Oil Company | Lakewood, CO 80226 | Oil & Gas Operator | May 2001 |
| 98 | Agricultural Energy Services Inc | Edmond, OK 73003 | Oil Operator | Jan 2023 |
| 99 | Aguila Operating Company LLC | | Oil & Gas Operator | Jan 2023 |
| 100 | Aikman Bros Corp | Midland, TX 79701 | Oil & Gas Operator | Mar 2015 |