| 1 | Agave Energy, Inc | Stigler, OK 74462 | Oil & Gas Operator | Sep 2024 |
| 2 | Arkansas Oklahoma Gas Corporation | Fort Smith, AR 72917 | Oil & Gas Operator | Aug 2022 |
| 3 | Bagby Energy LLC | Fort Smith, AR 72913 | Gas Operator | Apr 2010 |
| 4 | Bay Oaks Resources LLC | Fort Smith, AR 72913-3129 | Gas Operator | Feb 2018 |
| 5 | Bowman & Cains Exploration, LLC | | Gas Operator | Sep 2020 |
| 6 | Brown, B J | Tulsa, OK 74133 | Gas Operator | Feb 2008 |
| 7 | Camterra Resources, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Dec 2024 |
| 8 | CDX Gas, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2009 |
| 9 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2024 |
| 10 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2024 |
| 11 | Cholla Petroleum, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2024 |
| 12 | Cross Timbers Operating Inc | | Gas Operator | Jul 2001 |
| 13 | Crow Creek Operating Co II LLC | Houston, TX 77252 | Oil & Gas Operator | Nov 2011 |
| 14 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Sep 2024 |
| 15 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 16 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
| 17 | Fairview Production Company | Muldrow, OK 74948 | Oil & Gas Operator | Nov 2012 |
| 18 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Oct 2024 |
| 19 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 20 | Fort Operating Company | Fort Smith, AR 72923 | Gas Operator | Nov 2018 |
| 21 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
| 22 | Freedom Energy Inc | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Dec 2024 |
| 23 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Sep 2024 |
| 24 | High Plains Petroleum LLC | Bentonville, AR 72712 | Gas Operator | Jun 2024 |
| 25 | Highland Oil & Gas LLC | Houston, TX 77079-7220 | Oil & Gas Operator | Feb 2015 |
| 26 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Oct 2024 |
| 27 | Ironhorse Compression Inc | Pocola, OK 74902 | Gas Operator | May 2024 |
| 28 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2024 |
| 29 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 30 | L & L Energy Company | Huntington, AR 72940 | Oil & Gas Operator | May 2024 |
| 31 | Lime Rock Resources III-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 32 | Longview Production Company | Dallas, TX 75243-3795 | Oil & Gas Operator | Sep 2024 |
| 33 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Sep 2024 |
| 34 | M & P Exploration, Inc. | | Gas Operator | Nov 2017 |
| 35 | Max Extract Technologies, LLC | Oklahoma City, OK 73105 | Gas Operator | Jun 2024 |
| 36 | Merit Energy Company, LLC | Dallas, TX 75240 | Oil & Gas Operator | Sep 2024 |
| 37 | MMGK Arkoma, LLC | Dallas, TX 75240 | Gas Operator | Jun 2024 |
| 38 | Mueller, Thomas C Inc | | Gas Operator | Dec 2004 |
| 39 | Muras Energy, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Oct 2024 |
| 40 | O.G.P. Operating, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Dec 2024 |
| 41 | Oxley Energy LLC | Houston, TX 77042 | Gas Operator | Oct 2024 |
| 42 | Oxley Petroleum Company | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Sep 2017 |
| 43 | Ozark Oil & Gas, Inc | | Gas Operator | May 2018 |
| 44 | Providence Exploration & Production | | Gas Operator | Jan 2006 |
| 45 | Qep Energy Company | Midland, TX 79701 | Oil & Gas Operator | Sep 2024 |
| 46 | Rampart Resources Company, LLC | | Gas Operator | Jan 2021 |
| 47 | Rebel Exploration Inc | | Gas Operator | Jul 2015 |
| 48 | Reynolds Metals Company | | Gas Operator | Nov 2003 |
| 49 | Riverfront Exploration LLC | Fort Smith, AR 72901 | Gas Operator | Oct 2024 |
| 50 | Rock Creek Energy, LLC | Fort Smith, AR 72901 | Gas Operator | Jun 2024 |
| 51 | Ross Explorations, Inc | Fort Smith, AR 72903 | Gas Operator | Jun 2024 |
| 52 | Sagely Floyd E Properties LTD | Fort Smith, AR 72917-0308 | Gas Operator | Jan 2015 |
| 53 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
| 54 | Sedna Energy, Inc | | Gas Operator | Nov 2011 |
| 55 | Seeco | | Gas Operator | Jul 2016 |
| 56 | Seeco, Inc. | | Gas Operator | Sep 2015 |
| 57 | Shields Operating Inc | Fort Smith, AR 72901-3834 | Oil & Gas Operator | Oct 2021 |
| 58 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2024 |
| 59 | Texland Petroleum Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 60 | The Houston Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 61 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Dec 2024 |
| 62 | Vanguard Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2021 |
| 63 | Vision Natural Resources, LP | Midland, TX 79708 | Oil & Gas Operator | Dec 2024 |
| 64 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 65 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Dec 2024 |
| 66 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Oct 2024 |