| 1 | 3 H Operating Company LLC | Walters, OK 73572-3897 | Oil Operator | Jan 2025 |
| 2 | Alpha Oil Company | | Oil Operator | Jul 2004 |
| 3 | American Petroleum & Environmental Consultants Inc | Edmond, OK 73013-8801 | Oil & Gas Operator | Jan 2025 |
| 4 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Apr 2025 |
| 5 | Anderson Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2015 |
| 6 | B And M Production | Burkburnett, TX 76354 | Oil Operator | Apr 2025 |
| 7 | Barta Enterprises | Oklahoma City, OK 73162-1728 | Oil & Gas Operator | Jan 2025 |
| 8 | Baxter And Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Jan 2025 |
| 9 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Mar 2025 |
| 10 | Bond Drilling Company | Marietta, OK 73448-0372 | Oil & Gas Operator | Apr 2017 |
| 11 | Brahman Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 12 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2025 |
| 13 | Bridgers, Lindley | | Oil Operator | Nov 2012 |
| 14 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 15 | Butkin Oil Company | Duncan, OK 73534-2090 | Oil & Gas Operator | Sep 2021 |
| 16 | Butkin Oil Company LLC | Duncan, OK 73533 | Oil & Gas Operator | Mar 2023 |
| 17 | BVD Inc | Yates Center, KS 66783-0194 | Oil & Gas Operator | Feb 2025 |
| 18 | C & H Oil Company | Ratliff City, OK 73481-0130 | Oil & Gas Operator | Apr 2015 |
| 19 | C & J Exploration LLC | Colorado Springs, CO 80920-3946 | Oil & Gas Operator | Oct 2022 |
| 20 | C & R Petroleum Co. | Duncan, OK 73533-1341 | Oil & Gas Operator | Feb 2025 |
| 21 | C & Y Casing Pulling Company | Duncan, OK 73533 | Oil & Gas Operator | Feb 2025 |
| 22 | Cactus Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2000 |
| 23 | Cal-Tex Operating Co. | Manchaca, TX 78652 | Oil & Gas Operator | May 2020 |
| 24 | Caprock, Inc. | Ralls, TX 79357 | Oil & Gas Operator | Mar 2013 |
| 25 | Caulkins Oil Company | Aztec, NM 87410 | Oil & Gas Operator | Oct 2024 |
| 26 | Cibola Energy Corp | Albuquerque, NM 87103 | Oil & Gas Operator | Oct 2017 |
| 27 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Apr 2025 |
| 28 | Clark Operating Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 29 | CLV Oil & Gas Inc | Tulsa, OK 74169-0713 | Oil & Gas Operator | Apr 2020 |
| 30 | Coast Petroleum Company | | Oil Operator | Nov 1998 |
| 31 | Coho Oil & Gas Inc | Coppell, TX 75019-8288 | Oil & Gas Operator | Mar 2015 |
| 32 | Coker Oil Company | Duncan, OK 73533-0818 | Oil Operator | Jan 2014 |
| 33 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 34 | Consolidated Exploration Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Apr 2015 |
| 35 | Continental Oil & Refining Co | Catoosa, OK 74015-0831 | Oil & Gas Operator | Nov 2024 |
| 36 | Cotton County Ventures | Estes Park, CO 80517 | Oil Operator | Nov 2003 |
| 37 | County Line Stripper Wells LLC | Chelsea, OK 74016 | Oil & Gas Operator | Dec 2024 |
| 38 | Crescent Exploration, LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 39 | Crown Petroleum Company | Duncan, OK 73534-0938 | Oil & Gas Operator | Jan 2011 |
| 40 | D-Mil Production Inc | Argyle, TX 76226 | Oil & Gas Operator | Apr 2025 |
| 41 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Apr 2025 |
| 42 | Daube Company The | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2025 |
| 43 | Davco Productions Inc | Springer, OK 73458-8191 | Oil & Gas Operator | Jun 2021 |
| 44 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2025 |
| 45 | Dehart Company (The) | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2025 |
| 46 | DLB Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Apr 2025 |
| 47 | Duncan Petroleum Corp | Velma, OK 73091 | Oil & Gas Operator | Oct 1991 |
| 48 | Dunn Energy LLC | Skiatook, OK 74070-4046 | Oil Operator | Sep 2022 |
| 49 | Durango Energy Inc | Chickasha, OK 73023 | Oil Operator | Dec 1999 |
| 50 | E4 Production LLC | Comanche, OK 73529-7100 | Oil Operator | Feb 2025 |
| 51 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Feb 2025 |
| 52 | Enerwest Trading Co LLC | Duncan, OK 73534 | Oil & Gas Operator | Jan 2025 |
| 53 | Esper Production Co | Arlington, TX 76011-2427 | Oil & Gas Operator | Apr 2015 |
| 54 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2025 |
| 55 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Dec 2024 |
| 56 | Flanagan Energy Company LLC | Walters, OK 73572 | Oil Operator | Nov 2024 |
| 57 | Flusche Herbert J | Wichita Falls, TX 76309 | Oil Operator | Jun 1997 |
| 58 | French Oil Inc | Lawton, OK 73501-9454 | Oil & Gas Operator | Jan 2025 |
| 59 | G & D Oil | Walters, OK 73572-3870 | Oil Operator | Nov 2014 |
| 60 | G & S Production Company | Velma, OK 73491-0036 | Oil & Gas Operator | Oct 2021 |
| 61 | Gala Resources, LTD. | Graham, TX 76450 | Oil & Gas Operator | Jan 2025 |
| 62 | Gay Drilling Contractors | Duncan, OK 73534-0457 | Oil & Gas Operator | Dec 2014 |
| 63 | German Petroleum Company | Tulsa, OK 74169-1953 | Oil & Gas Operator | Oct 2009 |
| 64 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 65 | Gray Pipeline Inc | Broomfield, CO 80023-8304 | Oil & Gas Operator | Jul 2018 |
| 66 | H & T Brock Oil Company LLC | Comanche, OK 73529-7140 | Oil & Gas Operator | Feb 2024 |
| 67 | Halliburton Oil Producing Co. | Duncan, OK 73534 | Oil & Gas Operator | Apr 2016 |
| 68 | Henson Doyle | Okmulgee, OK 74447-4841 | Oil & Gas Operator | Jun 2020 |
| 69 | High McDonald Operating Co | Norman, OK 73072-7607 | Oil Operator | Dec 2024 |
| 70 | Hilligoss Leonard | | Oil Operator | Aug 2022 |
| 71 | His Energy Corporation Inc | Newcastle, OK 73065-1461 | Oil Operator | Feb 2018 |
| 72 | Hoard John L Family Trust | Ardmore, OK 73402-1706 | Oil & Gas Operator | Jun 2022 |
| 73 | Howell C W | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2015 |
| 74 | Hulsey Larry O & Co | Graham, TX 76046 | Oil & Gas Operator | Jun 2012 |
| 75 | Hurley Charles B | Santa Ana, CA 92706 | Oil & Gas Operator | Apr 2015 |
| 76 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 77 | Infinity Hydrocarbons LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2022 |
| 78 | Inman Oil LLC | Ruidoso, NM 88355 | Oil Operator | Feb 2025 |
| 79 | J & S Oil & Gas Inc | Asher, OK 74826 | Oil & Gas Operator | Jan 2025 |
| 80 | J & S Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2022 |
| 81 | J C Petroleum Inc | Chickasha, OK 73023-1433 | Oil & Gas Operator | Dec 2013 |
| 82 | Jack Oil Company | Baird, TX 79504 | Oil & Gas Operator | Feb 2025 |
| 83 | Jackson, Jeral W. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2004 |
| 84 | Jhatco Inc | Enid, OK 73701 | Oil & Gas Operator | Feb 2025 |
| 85 | Jones Babe Inc | Floydada, TX 79235-0180 | Oil & Gas Operator | May 2019 |
| 86 | Jones III Thomas J | Duncan, OK 73533-4995 | Oil & Gas Operator | Dec 2018 |
| 87 | Jones Oil Company LLC (The) | Duncan, OK 73533-4995 | Oil & Gas Operator | Jan 2025 |
| 88 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
| 89 | Kate F H | Oklahoma City, OK 73122 | Oil & Gas Operator | Jun 2000 |
| 90 | Kingfisher Resources Inc | Clinton, OK 73601 | Oil & Gas Operator | Feb 2025 |
| 91 | Kuran Resources Inc | Wichita Falls, TX 76305-2212 | Oil Operator | Jul 2021 |
| 92 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 93 | Lashley Oil Company Inc | Walters, OK 73572 | Oil Operator | Dec 2014 |
| 94 | Latham Roger P C | Dallas, TX 75244 | Oil Operator | Apr 2015 |
| 95 | Latigo Drilling Corporation | Duncan, OK 73533 | Oil & Gas Operator | Feb 2025 |
| 96 | Lemley Oil Corporation | Sulphur, OK 73086-9316 | Oil & Gas Operator | Jan 2025 |
| 97 | Lewis J K | Duncan, OK 73534-1742 | Oil & Gas Operator | Apr 2015 |
| 98 | Lewis Oil Operations LLC | Ratliff City, OK 73481 | Oil & Gas Operator | Jan 2025 |
| 99 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Feb 2025 |
| 100 | Mel Cox Transports Inc | Comanche, OK 73529-7640 | Oil & Gas Operator | Jul 2022 |