| 1 | 2-J Operating | Iowa Park, TX 76367 | Oil Operator | Dec 2004 |
| 2 | A & A Tank Truck Company | Norman, OK 73070-8969 | Oil & Gas Operator | Feb 2024 |
| 3 | Aexco Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
| 4 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 5 | American Quasar Petroleum Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2014 |
| 6 | Anadarko Minerals Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2024 |
| 7 | Arrow Oil & Gas, LLC | Norman, OK 73070 | Oil & Gas Operator | Apr 2024 |
| 8 | Aspen Energy Group, Inc. | Santa Ynez, CA 93460 | Oil & Gas Operator | Mar 2015 |
| 9 | B & B SWD LLC | | Oil Operator | Feb 2024 |
| 10 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 11 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
| 12 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
| 13 | Bce-Mach LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Feb 2024 |
| 14 | Beeler Phillip F | Norman, OK 73072-7522 | Oil & Gas Operator | Dec 2014 |
| 15 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Apr 2024 |
| 16 | Big Run Production Company | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 17 | Bluemark Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2024 |
| 18 | Bluff LTD (The) Partnership | Woodward, OK 73801-3160 | Oil Operator | Dec 1999 |
| 19 | Briscoe Oil Operating Co., Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Mar 2015 |
| 20 | Brown & Borelli, Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Apr 2024 |
| 21 | Burlington Res Oil & Gas LP | | Oil & Gas Operator | Jan 2024 |
| 22 | C & L Oil And Gas Corporation | Norman, OK 73069-8224 | Oil & Gas Operator | Feb 2024 |
| 23 | Capstone Oilfield Disposal Service LLC | Hennessey, OK 73742-0698 | Oil Operator | Dec 2019 |
| 24 | Central Ok Reclamation LLC | | Oil & Gas Operator | Jun 2014 |
| 25 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2024 |
| 26 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 27 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Apr 2024 |
| 28 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
| 29 | D & B Operating LLC | | Oil Operator | Jan 2023 |
| 30 | D C Energy, Inc. | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2020 |
| 31 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Apr 2024 |
| 32 | Deaton, Gary L. Corporation | Oklahoma City, OK 73105 | Oil & Gas Operator | Mar 2015 |
| 33 | DLB Energy Corporation | Oklahoma City, OK 73118-1401 | Oil & Gas Operator | Dec 2014 |
| 34 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Jan 2024 |
| 35 | Eastbrook Of Fairview Inc | Fairview, OK 73737-0148 | Oil Operator | Aug 2013 |
| 36 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Feb 2024 |
| 37 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 38 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 39 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 40 | Franklin Donna | Gotebo, OK 73041 | Oil & Gas Operator | Feb 2024 |
| 41 | Frontier Energy Serv LLC | Enid, OK 73702-1187 | Oil & Gas Operator | Jun 2016 |
| 42 | Fuchs Sam Trust | Taos, NM 87571-6201 | Oil Operator | Dec 2000 |
| 43 | Fullspike Energy LLC | Boyd, TX 76023 | Oil & Gas Operator | Apr 2024 |
| 44 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 45 | Gonzalez Randy Oil | Eakly, OK 73033-0451 | Oil Operator | Aug 2017 |
| 46 | Grayling Oil Inc | | Oil & Gas Operator | Feb 1995 |
| 47 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 48 | Greg Davis Investments Inc | Edmond, OK 73034-6621 | Oil Operator | May 2020 |
| 49 | Gunsight Energy Inc | Floydada, TX 79235-2521 | Oil Operator | Jun 2009 |
| 50 | H2ox Operating LLC | | Oil Operator | Feb 2024 |
| 51 | Hadson Petro USA Inc | | Oil & Gas Operator | Nov 2016 |
| 52 | Hadson Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 53 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 54 | Harris B D | Norman, OK 73071-4802 | Oil & Gas Operator | Apr 2014 |
| 55 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 56 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2024 |
| 57 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 58 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 59 | Jubilee Exploration LLC | | Oil & Gas Operator | Dec 2023 |
| 60 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |
| 61 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
| 62 | Kardaleff Steven T | Lawton, OK 73507-8471 | Oil Operator | Mar 2015 |
| 63 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 64 | KCS Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 65 | Kelt Oil & Gas | Houston, TX 77060 | Oil & Gas Operator | Dec 1998 |
| 66 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 67 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2024 |
| 68 | Knight Energy Inc | | Oil Operator | Feb 2024 |
| 69 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 70 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 71 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 72 | Leaman Oil Company | Roland, OK 74954 | Oil & Gas Operator | Apr 2014 |
| 73 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 74 | LX4 LLC | | Oil Operator | Jan 2024 |
| 75 | Mac Laskey Kelly Oilfield | El Dorado, KS 67042 | Oil & Gas Operator | Feb 2024 |
| 76 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
| 77 | McQueen Ed & Company Inc | Lindsey, OK 73052 | Oil & Gas Operator | Apr 2014 |
| 78 | Medallion Energy Inc | Norman, OK 73072-7436 | Oil & Gas Operator | Aug 2004 |
| 79 | Mendell Petroleum Corporation | Castle Rock, CO 80104-9045 | Oil & Gas Operator | Sep 2004 |
| 80 | Mge Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Jan 2024 |
| 81 | Mid-Con Central Expl Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2014 |
| 82 | Midwest Pipe & Supply Company | Oklahoma City, OK 73154-0245 | Oil & Gas Operator | Dec 2008 |
| 83 | Moore Richard L | Morris, OK 74445 | Oil Operator | Aug 2013 |
| 84 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Feb 2024 |
| 85 | Natural Gas Pipeline Co Of Am LLC | Downers Grove, IL 60515-3708 | Oil & Gas Operator | Mar 2015 |
| 86 | Nbi Services, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Apr 2024 |
| 87 | Nelson Exploration Corporation | | Oil & Gas Operator | Jan 2024 |
| 88 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Feb 2024 |
| 89 | Okie Crude Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 90 | Oklahoma Liquid Resources Inc | Owasso, OK 74055-0841 | Oil & Gas Operator | Jan 2024 |
| 91 | Oklahoma Petroleum Allies LLC | Ardmore, OK 73401 | Oil Operator | Oct 2023 |
| 92 | Oliphant Gertrud | Holdenville, OK 74848-0849 | Oil Operator | Aug 2013 |
| 93 | Outback Petroleum Inc | Moore, OK 73160-9998 | Oil & Gas Operator | Mar 2015 |
| 94 | Paramount Petroleum Corp | Dallas, TX 75374 | Oil Operator | Dec 2000 |
| 95 | PBT Enterprises Inc | Garber, OK 73738-0262 | Oil & Gas Operator | May 2023 |
| 96 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 97 | Pierce Investments | Weatherford, OK 73096 | Oil Operator | Jul 1994 |
| 98 | Prough A J | Gotebo, OK 73041 | Oil Operator | Apr 2014 |
| 99 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | Jan 2024 |
| 100 | R C Operating LLC | El Dorado, AR 71730 | Oil Operator | Jan 2024 |