| 1 | 3 H Operating Company LLC | | Oil Operator | Feb 2024 |
| 2 | A & A Tank Truck Company | Norman, OK 73070-8969 | Oil & Gas Operator | Feb 2024 |
| 3 | Alpha Oil Company | | Oil Operator | Jul 2004 |
| 4 | American Petroleum & Environmental Consultants Inc | Edmond, OK 73013-8801 | Oil & Gas Operator | Jan 2024 |
| 5 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | May 2024 |
| 6 | Anderson Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2015 |
| 7 | Arrow Oil & Gas, LLC | Norman, OK 73070 | Oil & Gas Operator | May 2024 |
| 8 | B & B SWD LLC | | Oil Operator | Feb 2024 |
| 9 | B And M Production | Burkburnett, TX 76354 | Oil Operator | May 2024 |
| 10 | Barta Enterprises | Oklahoma City, OK 73162-1728 | Oil & Gas Operator | Feb 2024 |
| 11 | Baxter And Associates Inc | Ada, OK 74821-0906 | Oil & Gas Operator | Jan 2024 |
| 12 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Mar 2024 |
| 13 | Bluff LTD (The) Partnership | Woodward, OK 73801-3160 | Oil Operator | Dec 1999 |
| 14 | Bond Drilling Company | Marietta, OK 73448-0372 | Oil & Gas Operator | Apr 2017 |
| 15 | Brahman Operating LLC | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 16 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2024 |
| 17 | Bridgers, Lindley | | Oil Operator | Nov 2012 |
| 18 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2024 |
| 19 | Butkin Oil Company | Duncan, OK 73534-2090 | Oil & Gas Operator | Sep 2021 |
| 20 | Butkin Oil Company LLC | Duncan, OK 73534-2090 | Oil & Gas Operator | Mar 2023 |
| 21 | C & H Oil Company | Ratliff City, OK 73481-0130 | Oil & Gas Operator | Apr 2015 |
| 22 | C & J Exploration LLC | Colorado Springs, CO 80920-3946 | Oil & Gas Operator | Oct 2022 |
| 23 | C & L Oil And Gas Corporation | Norman, OK 73069-8224 | Oil & Gas Operator | Feb 2024 |
| 24 | C & R Petroleum Co. | Duncan, OK 73533-1341 | Oil & Gas Operator | Feb 2024 |
| 25 | C & Y Casing Pulling Company | Duncan, OK 73534-0037 | Oil & Gas Operator | Feb 2024 |
| 26 | Cactus Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2000 |
| 27 | Cal-Tex Operating Co. | Manchaca, TX 78652 | Oil & Gas Operator | May 2020 |
| 28 | Caprock, Inc. | Ralls, TX 79357 | Oil & Gas Operator | Mar 2013 |
| 29 | Capstone Oilfield Disposal Service LLC | Hennessey, OK 73742-0698 | Oil Operator | Dec 2019 |
| 30 | Caulkins Oil Company | Aztec, NM 87410 | Oil & Gas Operator | Dec 2023 |
| 31 | Central Ok Reclamation LLC | | Oil & Gas Operator | Jun 2014 |
| 32 | Cibola Energy Corp | Albuquerque, NM 87103 | Oil & Gas Operator | Oct 2017 |
| 33 | Clark Operating Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2024 |
| 34 | Climax Oil Co LLC | | Oil Operator | Jan 2024 |
| 35 | CLV Oil & Gas Inc | Tulsa, OK 74169-0713 | Oil & Gas Operator | Apr 2020 |
| 36 | Coast Petroleum Company | | Oil Operator | Nov 1998 |
| 37 | Coho Oil & Gas Inc | Coppell, TX 75019-8288 | Oil & Gas Operator | Mar 2015 |
| 38 | Coker Oil Company | Duncan, OK 73533-0818 | Oil Operator | Jan 2014 |
| 39 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 40 | Consolidated Exploration Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2015 |
| 41 | Continental Oil & Refining Co | Catoosa, OK 74015-0831 | Oil & Gas Operator | Oct 2023 |
| 42 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | May 2024 |
| 43 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
| 44 | Cotton County Ventures | Estes Park, CO 80517 | Oil Operator | Nov 2003 |
| 45 | County Line Stripper Wells LLC | | Oil & Gas Operator | Sep 2023 |
| 46 | Crescent Exploration, LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 47 | Crown Petroleum Company | Duncan, OK 73534-0938 | Oil & Gas Operator | Jan 2011 |
| 48 | D & B Operating LLC | | Oil Operator | Jan 2023 |
| 49 | D-Mil Production Inc | Argyle, TX 76226 | Oil & Gas Operator | May 2024 |
| 50 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | May 2024 |
| 51 | Daube Company The | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2024 |
| 52 | Davco Productions Inc | Springer, OK 73458-8191 | Oil & Gas Operator | Jun 2021 |
| 53 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
| 54 | Dehart Company (The) | Ardmore, OK 73402-0907 | Oil & Gas Operator | Feb 2024 |
| 55 | DLB Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | May 2024 |
| 56 | Duncan Petroleum Corp | Velma, OK 73091 | Oil & Gas Operator | Oct 1991 |
| 57 | Dunn Energy LLC | Skiatook, OK 74070-4046 | Oil Operator | Sep 2022 |
| 58 | Durango Energy Inc | Chickasha, OK 73023 | Oil Operator | Dec 1999 |
| 59 | E4 Production LLC | | Oil Operator | Feb 2024 |
| 60 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Feb 2024 |
| 61 | Enerwest Trading Co LLC | Duncan, OK 73534 | Oil & Gas Operator | Jan 2024 |
| 62 | Esper Production Co | Arlington, TX 76011-2427 | Oil & Gas Operator | Apr 2015 |
| 63 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | May 2024 |
| 64 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2024 |
| 65 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 66 | Flanagan Energy Company LLC | Walters, OK 73572-0491 | Oil Operator | Apr 2023 |
| 67 | Flusche Herbert J | Wichita Falls, TX 76309 | Oil Operator | Jun 1997 |
| 68 | French Oil Inc | Lawton, OK 73501-9454 | Oil & Gas Operator | Jan 2024 |
| 69 | G & D Oil | Walters, OK 73572-3870 | Oil Operator | Nov 2014 |
| 70 | G & S Production Company | Velma, OK 73491-0036 | Oil & Gas Operator | Oct 2021 |
| 71 | Gala Resources, LTD. | Graham, TX 76450 | Oil & Gas Operator | Jan 2024 |
| 72 | Gay Drilling Contractors | Duncan, OK 73534-0457 | Oil & Gas Operator | Dec 2014 |
| 73 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 74 | German Petroleum Company | Tulsa, OK 74169-1953 | Oil & Gas Operator | Oct 2009 |
| 75 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 76 | Gray Pipeline Inc | Broomfield, CO 80023-8304 | Oil & Gas Operator | Jul 2018 |
| 77 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 78 | H & T Brock Oil Company LLC | Comanche, OK 73529-7140 | Oil & Gas Operator | Feb 2024 |
| 79 | H2ox Operating LLC | | Oil Operator | Feb 2024 |
| 80 | Halliburton Oil Producing Co. | Duncan, OK 73534 | Oil & Gas Operator | Apr 2016 |
| 81 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 82 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 83 | Henson Doyle | Okmulgee, OK 74447-4841 | Oil & Gas Operator | Jun 2020 |
| 84 | High McDonald Operating Co | Norman, OK 73072-7607 | Oil Operator | Jan 2024 |
| 85 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 86 | Hilligoss Leonard | | Oil Operator | Aug 2022 |
| 87 | His Energy Corporation Inc | Newcastle, OK 73065-1461 | Oil Operator | Feb 2018 |
| 88 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 89 | Howell C W | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2015 |
| 90 | Hulsey Larry O & Co | Graham, TX 76046 | Oil & Gas Operator | Jun 2012 |
| 91 | Hurley Charles B | Santa Ana, CA 92706 | Oil & Gas Operator | Apr 2015 |
| 92 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 93 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 94 | Infinity Hydrocarbons LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2022 |
| 95 | Inman Oil LLC | Ruidoso, NM 88355 | Oil Operator | Feb 2024 |
| 96 | J & S Oil & Gas Inc | Asher, OK 74826 | Oil & Gas Operator | Jan 2024 |
| 97 | J & S Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2022 |
| 98 | J C Petroleum Inc | Chickasha, OK 73023-1433 | Oil & Gas Operator | Dec 2013 |
| 99 | Jack Oil Company | Baird, TX 79504 | Oil & Gas Operator | Feb 2024 |
| 100 | Jackson, Jeral W. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2004 |