| 1 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 2 | 31 Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 3 | Alcorn, Jerry D. | Grand Prairie, TX 75050 | Oil & Gas Operator | Sep 2026 |
| 4 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 5 | Allied Energy Operating, LLC | McKinney, TX 75071 | Oil Operator | Sep 2026 |
| 6 | Apex Resources LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 7 | Ashtola Exploration Company,Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2026 |
| 8 | Ausanka Oil Operations | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 9 | Avad Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 10 | Ayres, C. D. | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2026 |
| 11 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 12 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 13 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Sep 2026 |
| 14 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Sep 2026 |
| 15 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 16 | Bep Operating, LLC | Pearland, TX 77581 | Oil & Gas Operator | Sep 2026 |
| 17 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 18 | Bitter Creek Petroleum Co. | Knox City, TX 79529 | Oil & Gas Operator | Sep 2026 |
| 19 | Bledsco, Inc. | Holliday, TX 76366 | Oil Operator | Feb 2010 |
| 20 | Blue Grass Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | May 2026 |
| 21 | BMBD Enterprises, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2026 |
| 22 | Boaz Energy, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2014 |
| 23 | Boone Ranch 8, Inc. | Graham, TX 76450 | Oil Operator | Sep 2026 |
| 24 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 25 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 26 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 27 | Britton Operating, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2026 |
| 28 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 29 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Sep 2026 |
| 30 | Bulwark Oil & Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 31 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 32 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 33 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 34 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 35 | Caribou Operating Co. | Granbury, TX 76048 | Oil & Gas Operator | Mar 2010 |
| 36 | Carloran Production Corp | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2026 |
| 37 | Casteel, Hoyt F. | Graham, TX 76450 | Oil & Gas Operator | Nov 2001 |
| 38 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Sep 2026 |
| 39 | Ceja Corporation | Tulsa, OK 74172 | Oil & Gas Operator | May 2026 |
| 40 | Chardonnay Operating, Inc. | Olney, TX 76374 | Oil & Gas Operator | Dec 1996 |
| 41 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Sep 2026 |
| 42 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 43 | Chital Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2000 |
| 44 | Clark, John M., Inc. | Midland, TX 79704 | Oil & Gas Operator | Sep 2026 |
| 45 | Cleo Oil, Inc. | Olney, TX 76374 | Oil & Gas Operator | May 1997 |
| 46 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 47 | Coker, Tom | Seymour, TX 76380 | Oil & Gas Operator | Sep 2006 |
| 48 | Comstock Energy, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 49 | Cooper Oil & Gas, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | May 2010 |
| 50 | Cooper Oil & Gas, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 51 | Corlena Oil Company | Amarillo, TX 79101 | Oil & Gas Operator | Sep 2026 |
| 52 | Craig, Carl | Olney, TX 76374 | Oil & Gas Operator | Sep 2026 |
| 53 | Creston Petroleum Corp. | Dallas, TX 75380 | Oil & Gas Operator | Sep 2026 |
| 54 | Crocker Oil Company | Windthorst, TX 76389 | Oil & Gas Operator | Aug 1999 |
| 55 | Dahab Energy Inc. | Dallas, TX 75225 | Oil & Gas Operator | Sep 2026 |
| 56 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Sep 2026 |
| 57 | Decleva, Paul | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2020 |
| 58 | Delaware Davis Petroleum Corp. | Houston, TX 77056 | Oil & Gas Operator | Jan 2000 |
| 59 | Denoco Inc. | Plano, TX 75086 | Oil & Gas Operator | Mar 2008 |
| 60 | DJ Resources Inc | Bowie, TX 76230 | Oil & Gas Operator | Nov 2017 |
| 61 | Donnell, Louis, Jr. | South Bend, TX 76481 | Oil & Gas Operator | Mar 2008 |
| 62 | Double M Petroproperties, Inc. | Haskell, TX 79521 | Oil & Gas Operator | Sep 2026 |
| 63 | Dry Fork Production Co., LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 64 | E.C. Hindman Oil And Gas | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2026 |
| 65 | Ec Stryker Inc | Decatur, TX 76234 | Oil & Gas Operator | Dec 2015 |
| 66 | Echo Production Inc | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 67 | Edge, Fred Well Service Co. | Archer City, TX 76351 | Oil & Gas Operator | May 2024 |
| 68 | Efficiency Operating Service | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 69 | Eldorado Oil And Gas, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Nov 1995 |
| 70 | Eldorado Operating Co. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2004 |
| 71 | Embassy Oil Company | Highland VLG, TX 75077 | Oil & Gas Operator | Sep 2026 |
| 72 | Energy Group Of America, Inc. | Hollister, MO 65672 | Oil Operator | Sep 2026 |
| 73 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Apr 2026 |
| 74 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 75 | Ericksen, W.R. | Hobbs, NM 88240 | Oil & Gas Operator | Nov 1993 |
| 76 | Erwin, James D. | Dallas, TX 75225 | Oil & Gas Operator | Nov 1993 |
| 77 | Exmoor Oil & Minerals Corp. | Dallas, TX 75225 | Oil & Gas Operator | May 1994 |
| 78 | Farmer, Lewis & Hayden | Olney, TX 76374 | Oil & Gas Operator | Oct 2008 |
| 79 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Sep 2026 |
| 80 | Fergus Oil & Gas, LLC | Allen, TX 75013 | Oil Operator | Mar 2026 |
| 81 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 82 | Flavian Oil Company | Dallas, TX 75206 | Gas Operator | Jan 1997 |
| 83 | GBF Operating LLC | Morrison, CO 80465 | Oil & Gas Operator | Sep 2026 |
| 84 | GBG Operating Corp. | Wichita Falls, TX 76302 | Oil & Gas Operator | Sep 1998 |
| 85 | Geostrat Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2011 |
| 86 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | May 2026 |
| 87 | Golden Gas Production Company | Tulsa, OK 74136 | Oil & Gas Operator | May 2026 |
| 88 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 89 | Grimes Energy Company | Abilene, TX 79604 | Oil & Gas Operator | Mar 2005 |
| 90 | GT Productions | Euless, TX 76040 | Oil & Gas Operator | Jan 1997 |
| 91 | Gulf States Petro. Corp. | Dallas, TX 75202 | Oil & Gas Operator | Apr 2006 |
| 92 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 93 | H & M Resources LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2026 |
| 94 | Harding Company | Dallas, TX 75244 | Oil & Gas Operator | Jan 2015 |
| 95 | Harmel And Shawver Oil LLC | Wichita Falls, TX 76310 | Oil Operator | Sep 2026 |
| 96 | Hatcher, Ray | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2002 |
| 97 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2026 |
| 98 | Henderson, Sam F. | Odessa, TX 79760 | Oil & Gas Operator | Nov 2002 |
| 99 | Henson Exploration, L.P. | Abilene, TX 79608 | Oil & Gas Operator | Sep 2026 |
| 100 | Hep Oil GP, LLC | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2015 |