| 1 | 4P Energy Texas, LLC | Denver, CO 80206 | Oil & Gas Operator | Nov 2020 |
| 2 | 4R Petroleum, Inc. | Borger, TX 79008 | Oil & Gas Operator | Dec 2024 |
| 3 | 6a Production | Pampa, TX 79066 | Oil & Gas Operator | Dec 2024 |
| 4 | A & B Well Service Inc. | Amarillo, TX 79159 | Oil & Gas Operator | Nov 2006 |
| 5 | A2r Resources, LLC | Pampa, TX 79066 | Oil & Gas Operator | May 2024 |
| 6 | Adobe Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2024 |
| 7 | Alliance Resources Corporation | Dallas, TX 75367 | Oil & Gas Operator | Dec 2024 |
| 8 | Alpar Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Jul 2011 |
| 9 | Alyaha Energy, LLC | Dumas, TX 79029 | Gas Operator | Dec 2024 |
| 10 | Amarillo Natural Gas, Inc. | Amarillo, TX 79119 | Gas Operator | Jul 1996 |
| 11 | Amcon Resources, Inc. | Oklahoma City, OK 73101 | Gas Operator | Jun 2016 |
| 12 | American Star Energy & Min. Corp | Katy, TX 77449 | Oil & Gas Operator | Dec 2024 |
| 13 | Amerril Energy LLC | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 14 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 15 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Sep 2024 |
| 16 | Ananda Energy Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2021 |
| 17 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 18 | Arapahoe Prod. Co. | Borger, TX 79008 | Oil & Gas Operator | May 2012 |
| 19 | Archer, Carl M. | Spearman, TX 79081 | Oil & Gas Operator | Feb 2005 |
| 20 | Archer,Carl M Estate Partnership | Gruver, TX 79040 | Oil & Gas Operator | Sep 2022 |
| 21 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
| 22 | Arkoma, Sandra | Pampa, TX 79066 | Oil & Gas Operator | May 1995 |
| 23 | Arrington CJM, Inc. | Canadian, TX 79014 | Oil & Gas Operator | Nov 2021 |
| 24 | Athena Energy, Inc. | Gallatin, TN 37066 | Oil & Gas Operator | Dec 2024 |
| 25 | Axis Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Dec 2024 |
| 26 | B J Resources, L.L.C. | Athens, TX 75751 | Oil & Gas Operator | Dec 2024 |
| 27 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 28 | Bar L Producers | Fritch, TX 79036 | Oil & Gas Operator | Dec 2024 |
| 29 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2024 |
| 30 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 31 | Batton Oil & Gas, LLC | Spearman, TX 79081 | Oil & Gas Operator | Dec 2024 |
| 32 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2024 |
| 33 | Be Anadarko II, LLC | Austin, TX 78731 | Oil & Gas Operator | Dec 2024 |
| 34 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
| 35 | Bear Creek Operating | Pampa, TX 79066 | Oil & Gas Operator | Dec 2024 |
| 36 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 37 | Benson-McCown & Company | Amarillo, TX 79114 | Oil & Gas Operator | Jul 2016 |
| 38 | BGM Production, LLC | Borger, TX 79008 | Oil & Gas Operator | Dec 2024 |
| 39 | BHB Operating Inc. | Fort Worth, TX 76137 | Oil & Gas Operator | Dec 2024 |
| 40 | Black Resources | Pampa, TX 79065 | Oil & Gas Operator | Dec 2024 |
| 41 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2024 |
| 42 | Blade Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Jun 1994 |
| 43 | Bluegrass Energy Inc | Houston, TX 77057 | Oil & Gas Operator | Sep 2024 |
| 44 | Bluemark Energy LLC | Tulsa, OK 74120 | Oil & Gas Operator | Oct 2024 |
| 45 | Borger Resources 2 LLC | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 46 | Borger Resources 3 LLC | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 47 | Borger Resources 4 LLC | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 48 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
| 49 | Bradley Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2024 |
| 50 | Bravo Natural Gas, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2012 |
| 51 | Brawley Petroleum Corporation | Lubbock, TX 79424 | Gas Operator | Aug 2017 |
| 52 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 53 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2024 |
| 54 | Burnett Corp. | Amarillo, TX 79105 | Oil & Gas Operator | May 1998 |
| 55 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
| 56 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 57 | C & C Oil Producers | Borger, TX 79008 | Oil & Gas Operator | Dec 2024 |
| 58 | C E Energy LLC | Katy, TX 77449 | Oil Operator | Dec 2024 |
| 59 | C. O. Oil And Gas, LLC | Pampa, TX 79066 | Oil & Gas Operator | Dec 2024 |
| 60 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
| 61 | Cal-T Oil Company, Incorporated | Borger, TX 79008 | Oil & Gas Operator | Feb 2008 |
| 62 | Caldwell Production Co. Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2010 |
| 63 | Canadian River Trading Co II | Katy, TX 77449 | Oil & Gas Operator | Dec 2024 |
| 64 | Canadian River Trading Company | Tulsa, OK 74101 | Oil & Gas Operator | Feb 2018 |
| 65 | Caprock Engineering, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2018 |
| 66 | Capstone Cactus Operating Comp. | Hennessey, OK 73742 | Oil & Gas Operator | Dec 2024 |
| 67 | Casa Operations | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 68 | CC Oil Company | Borger, TX 79008 | Oil & Gas Operator | Sep 2024 |
| 69 | Chance Energy Co. Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Sep 1999 |
| 70 | Chapter Petroleum | Borger, TX 79008 | Oil & Gas Operator | Mar 1997 |
| 71 | Chapter Petroleum, Inc. | Borger, TX 79008 | Oil & Gas Operator | Mar 2001 |
| 72 | Chase Production Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2024 |
| 73 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2024 |
| 74 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2024 |
| 75 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
| 76 | Childers, J. C. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 77 | Cig Exploration Inc | Houston, TX 77046 | Oil & Gas Operator | Nov 1999 |
| 78 | CKB Corporation | Borger, TX 79008 | Oil & Gas Operator | Aug 1997 |
| 79 | Classic Petroleum Partners, Inc. | Whitehouse, TX 75791 | Oil & Gas Operator | Dec 2024 |
| 80 | Clay Petroleum | Prosper, TX 75078 | Oil & Gas Operator | Feb 2023 |
| 81 | Cody Company | Amarillo, TX 79121 | Oil & Gas Operator | Mar 2020 |
| 82 | Comac Well Service, Inc. | Borger, TX 79008 | Oil & Gas Operator | Mar 2008 |
| 83 | Comstock Oil & Gas, LP | Frisco, TX 75034 | Oil & Gas Operator | Aug 2019 |
| 84 | Concho Exploration Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2015 |
| 85 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 86 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2024 |
| 87 | Coreterra Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Dec 2024 |
| 88 | Cory, Kenneth W. LTD. | Bellaire, TX 77401 | Oil & Gas Operator | Dec 2024 |
| 89 | CP Energy LLC | Edmond, OK 73034 | Oil Operator | Oct 2024 |
| 90 | Crescendo Resources, L.P. | Amarillo, TX 79188 | Oil & Gas Operator | Sep 2024 |
| 91 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2024 |
| 92 | Cummings, C. M. Oil & Gas | Lewisville, TX 75029 | Oil & Gas Operator | Nov 1993 |
| 93 | Curzac Oil And Gas, LLC | Plano, TX 75075 | Oil & Gas Operator | Dec 2024 |
| 94 | Cuyahoga Expl. & Devel. Corp. | Jericho, NY 11753 | Oil & Gas Operator | Dec 1996 |
| 95 | CWF Energy, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1997 |
| 96 | D & S Oil Co. #1 | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 97 | D.W.P. Production | Perryton, TX 79070 | Oil & Gas Operator | Nov 2020 |
| 98 | D10 Energy LLC | Stinnett, TX 79083 | Oil & Gas Operator | Dec 2024 |
| 99 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Dec 2024 |
| 100 | Dakar Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |