| 1 | 007 Operating LLC | Sulphur, OK 73086 | Oil & Gas Operator | Jan 2025 |
| 2 | Aethon I LP | Dallas, TX 75206 | Oil & Gas Operator | Mar 2015 |
| 3 | Aker Oil & Gas Company | Tulsa, OK 74105-2216 | Oil & Gas Operator | Aug 2013 |
| 4 | Altman Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | May 2025 |
| 5 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | May 2025 |
| 6 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Mar 2025 |
| 7 | Argent Energy (Us) Holdings Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Sep 2021 |
| 8 | Atchley Resources, Inc. | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2025 |
| 9 | B H & T Oil Company Inc | Purcell, OK 73080-3010 | Oil & Gas Operator | Dec 2000 |
| 10 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | May 2025 |
| 11 | Baxter And Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Feb 2025 |
| 12 | Bays Exploration Inc | Oklahoma City, OK 73116-9004 | Oil & Gas Operator | Mar 2025 |
| 13 | Black Mesa Energy LLC | Tulsa, OK 74103-4334 | Oil & Gas Operator | Feb 2025 |
| 14 | Bryant D G And Company | Midlothian, TX 76065-3628 | Oil & Gas Operator | Jun 2024 |
| 15 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2025 |
| 16 | Butkin Oil Company | Duncan, OK 73534-2090 | Oil & Gas Operator | Sep 2021 |
| 17 | Cantrell Energy Corporation | Ada, OK 74820-0835 | Oil & Gas Operator | Feb 2025 |
| 18 | Canvas Energy LLC | Oklahoma City, OK 73142-1839 | Oil & Gas Operator | Mar 2025 |
| 19 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2025 |
| 20 | Chisum G H | Duncan, OK 73533 | Oil & Gas Operator | Dec 2010 |
| 21 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | May 2025 |
| 22 | Cleveland Rod & Tracy | Elmore City, OK 73433-9467 | Oil & Gas Operator | Jul 2023 |
| 23 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 24 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | May 2025 |
| 25 | Cortez Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2016 |
| 26 | Crusader Energy Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2011 |
| 27 | Crystal Energy Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2019 |
| 28 | D C Energy, Inc. | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2020 |
| 29 | D-Mil Production Inc | Argyle, TX 76226 | Oil & Gas Operator | May 2025 |
| 30 | Dallas Production, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2021 |
| 31 | Dash Operating LLC | Oklahoma City, OK 73118-5031 | Oil & Gas Operator | Feb 2025 |
| 32 | Dehart Company (The) | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2025 |
| 33 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 34 | Douglas Investments Inc | Fort Worth, TX 76137 | Oil Operator | Jan 2020 |
| 35 | Downhole Oil & Gas Tech LLC | Countyline, OK 73152-0027 | Oil Operator | Oct 2009 |
| 36 | Eagle Creek Resources, LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2024 |
| 37 | Elite Tank Trucks, Inc | | Oil & Gas Operator | Mar 2025 |
| 38 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Apr 2025 |
| 39 | Energy Environment Inc | Holdenville, OK 74848-0765 | Oil & Gas Operator | Jul 2016 |
| 40 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2025 |
| 41 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 42 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Feb 2025 |
| 43 | Fairview Production Co LLC | Davis, OK 73030 | Oil & Gas Operator | Feb 2025 |
| 44 | Forsythe Trucking Inc | Wilson, OK 73463 | Oil & Gas Operator | Mar 2025 |
| 45 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |
| 46 | Gadsco Inc | Ardmore, OK 73402 | Gas Operator | Jun 2013 |
| 47 | Good Vaughn Oil Company LLC | Enid, OK 73702-3744 | Oil & Gas Operator | Jun 2019 |
| 48 | Hall Exploration, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2025 |
| 49 | Halliburton Oil Producing Co. | Duncan, OK 73534 | Oil & Gas Operator | Apr 2016 |
| 50 | Henderson Fred J | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 2025 |
| 51 | Highmark Energy Operating, LLC | Dallas, TX 75222 | Oil & Gas Operator | May 2025 |
| 52 | Hooks Dwain | Tatums, OK 73487 | Oil & Gas Operator | Oct 2024 |
| 53 | J & S Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2022 |
| 54 | Joe B Clifton Exploration Inc | Pauls Valley, OK 73075 | Oil & Gas Operator | Apr 2022 |
| 55 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
| 56 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | May 2025 |
| 57 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 58 | Keith F. Walker Oil & Gas Co., LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2025 |
| 59 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Mar 2025 |
| 60 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 61 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Mar 2025 |
| 62 | Kloberdanz, Paul E. | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2021 |
| 63 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Mar 2025 |
| 64 | Latigo Drilling Corporation | Duncan, OK 73533 | Oil & Gas Operator | Mar 2025 |
| 65 | Le Norman Energy Corporation | Duncan, OK 73534 | Oil & Gas Operator | Nov 2014 |
| 66 | Le Norman Partners LLC | Duncan, OK 73533-9523 | Oil & Gas Operator | Feb 2012 |
| 67 | Leeman Energy Corporation | Oklahoma City, OK 73118-1802 | Oil & Gas Operator | Mar 2015 |
| 68 | Lemley Oil Corporation | Sulphur, OK 73086-9316 | Oil & Gas Operator | Jan 2025 |
| 69 | Lewis Oil Operations LLC | Ratliff City, OK 73481 | Oil & Gas Operator | Feb 2025 |
| 70 | Lobar Oil Co LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 71 | London William W | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2015 |
| 72 | London William W Inc | Oklahoma City, OK 73116-5116 | Oil & Gas Operator | Apr 2016 |
| 73 | Masters Loy C | Davis, OK 73030-0397 | Oil & Gas Operator | Apr 2005 |
| 74 | Miller Petroleum Company | Yukon, OK 73099-0452 | Oil & Gas Operator | Aug 2009 |
| 75 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | May 2025 |
| 76 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | May 2025 |
| 77 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | May 2025 |
| 78 | Northwest Oil Company | Dallas, TX 75204 | Oil & Gas Operator | Jun 2014 |
| 79 | O'Neal Oil & Gas Co | Fort Worth, TX 76107-1479 | Oil & Gas Operator | Mar 2025 |
| 80 | Oak Resources Inc | Tulsa, OK 74153 | Oil & Gas Operator | Aug 2013 |
| 81 | Oklahoma Oil Tactics Inc | Edmond, OK 73003-1351 | Oil & Gas Operator | Mar 2015 |
| 82 | Oneok Resources Company | Tulsa, OK 74102 | Oil & Gas Operator | Feb 2017 |
| 83 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 84 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 85 | Pet-Ex, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2025 |
| 86 | Quantum Resources Management LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2025 |
| 87 | R.D. Oil Company | Austin, TX 78755 | Oil & Gas Operator | May 2025 |
| 88 | Raizen Oil Company | Velma, OK 73091 | Oil & Gas Operator | Feb 2016 |
| 89 | Ranken Energy Corporation | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 90 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 91 | Richard W Thompson Inc | Plano, TX 75075 | Oil & Gas Operator | Jul 2019 |
| 92 | Rox Exploration Inc | Norman, OK 73069-6301 | Oil & Gas Operator | Mar 2025 |
| 93 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 94 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 95 | Santa Fe Energy Operating Partner LP | Midland, TX 79701 | Oil & Gas Operator | Sep 2004 |
| 96 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2025 |
| 97 | Southern Resources Inc | Oklahoma City, OK 73118-4821 | Oil & Gas Operator | Mar 2025 |
| 98 | Stone River Energy Corp | Edmond, OK 73034 | Oil & Gas Operator | Jan 2014 |
| 99 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | May 2025 |
| 100 | Suncoast Technical Service Inc | Plano, TX 75074-5438 | Oil Operator | Mar 2005 |