| 1 | A & A Tank Truck Company | Norman, OK 73070-8969 | Oil & Gas Operator | Jan 2024 |
| 2 | Adams Resources Expl. Corp. | Houston, TX 77001 | Oil & Gas Operator | Apr 2020 |
| 3 | Aguila Operating Company LLC | | Oil & Gas Operator | Jan 2024 |
| 4 | American Crude Corp | Madill, OK 73446 | Oil Operator | Dec 1992 |
| 5 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 6 | Antara Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 2004 |
| 7 | Apache Corporation | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 8 | Arrow Energy Inc | Houston, TX 77008 | Oil & Gas Operator | Jan 2024 |
| 9 | Arrow Oil & Gas, LLC | Norman, OK 73070 | Oil & Gas Operator | Apr 2024 |
| 10 | Arrow Operating Company | Dallas, TX 75231 | Oil & Gas Operator | Feb 2015 |
| 11 | Atlantic Richfield Company | Plano, TX 75094-1744 | Oil & Gas Operator | Dec 2016 |
| 12 | Auora Natural Gas & Assoc Prod | Dallas, TX 75205 | Oil & Gas Operator | Dec 2000 |
| 13 | B & B SWD LLC | | Oil Operator | Jan 2024 |
| 14 | B & W Operating LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2024 |
| 15 | B-J Enterprises Inc | McAlester, OK 74501-7335 | Oil & Gas Operator | Apr 2014 |
| 16 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
| 17 | Bce-Mach LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jan 2024 |
| 18 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 19 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
| 20 | Blackwell Exploration & Development LLC | Dallas, TX 75252 | Oil & Gas Operator | Jan 2024 |
| 21 | Bluff LTD (The) Partnership | Woodward, OK 73801-3160 | Oil Operator | Dec 1999 |
| 22 | Bravo Arkoma LLC | | Oil & Gas Operator | Dec 2023 |
| 23 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 24 | Bullard Don W | Ardmore, OK 73401-3646 | Oil & Gas Operator | Dec 2019 |
| 25 | C & L Oil And Gas Corporation | Norman, OK 73069-8224 | Oil & Gas Operator | Jan 2024 |
| 26 | Calpine Natural Gas Company L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 27 | Camino Natural Resources LLC | | Oil & Gas Operator | Jan 2024 |
| 28 | Canaan Energy Corporation | Oklahoma City, OK 73154-8806 | Oil & Gas Operator | Mar 2015 |
| 29 | Canvas Energy LLC | Oklahoma City, OK 73142-1839 | Oil & Gas Operator | Jan 2024 |
| 30 | Capstone Oilfield Disposal Service LLC | Hennessey, OK 73742-0698 | Oil Operator | Dec 2019 |
| 31 | Carlow Corp. | Midland, TX 79702 | Oil & Gas Operator | Dec 2023 |
| 32 | Central Ok Reclamation LLC | | Oil & Gas Operator | Jun 2014 |
| 33 | Chatham Verdell | Ratliff City, OK 73081-0061 | Oil Operator | Oct 2009 |
| 34 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2024 |
| 35 | Cholla Petroleum, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
| 36 | Cimarex Energy Co | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 37 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 38 | Cimarron Operating Company | Oklahoma City, OK 73112-3967 | Oil & Gas Operator | May 2011 |
| 39 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 40 | Continental Exploration LLC | Lufkin, TX 75915 | Oil & Gas Operator | Apr 2024 |
| 41 | Continental Operating Co. | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 42 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Apr 2024 |
| 43 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
| 44 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2023 |
| 45 | Cxy Energy, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Nov 2000 |
| 46 | D & B Operating LLC | | Oil Operator | Jan 2023 |
| 47 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Apr 2024 |
| 48 | Daniels Corporation, The | Seabrook, TX 77586 | Oil & Gas Operator | Apr 2024 |
| 49 | Daniels Danny | Tishomingo, OK 73460-0853 | Oil Operator | Apr 2015 |
| 50 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Apr 2024 |
| 51 | Eagle Gas Marketing Co | Oklahoma City, OK 73114-2202 | Oil & Gas Operator | Nov 2022 |
| 52 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Dec 2023 |
| 53 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Jan 2024 |
| 54 | Enerwest Trading Co LLC | Duncan, OK 73534 | Oil & Gas Operator | Dec 2023 |
| 55 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 56 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Apr 2024 |
| 57 | First Ascent Operating LLC | Addison, TX 75001 | Oil Operator | Feb 2024 |
| 58 | Fitzgerald & Dennis | | Oil & Gas Operator | Apr 2014 |
| 59 | Gemini Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 60 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 61 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 62 | Gladiator Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 63 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2024 |
| 64 | Godfrey Oil Properties | Madill, OK 73446-0183 | Oil & Gas Operator | Dec 2023 |
| 65 | Goggans William C | Pauls Valley, OK 73075-9759 | Oil & Gas Operator | Jun 2004 |
| 66 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 67 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Dec 2023 |
| 68 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Jan 2024 |
| 69 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2024 |
| 70 | H2ox Operating LLC | | Oil Operator | Jan 2024 |
| 71 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 72 | Hancock Leon | Kingston, OK 73439-9618 | Oil Operator | Dec 2014 |
| 73 | Hawkins Oil & Gas Inc | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2016 |
| 74 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 75 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 76 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 77 | Hutton Gas Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 78 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 79 | Jimmy R Chatham LLC | Healdton, OK 73438-0878 | Oil & Gas Operator | Jan 2024 |
| 80 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
| 81 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
| 82 | Kentry Oil Company | Kingston, OK 73439 | Oil Operator | Aug 2002 |
| 83 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 84 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 85 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Feb 2024 |
| 86 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 87 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 88 | Lavrco Energie Inc | Duncan, OK 73533 | Oil & Gas Operator | Jan 2024 |
| 89 | Lemley Oil Corporation | Sulphur, OK 73086-9316 | Oil & Gas Operator | Dec 2023 |
| 90 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 91 | LX4 LLC | | Oil Operator | Jan 2024 |
| 92 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | Apr 2024 |
| 93 | Mac Laskey Kelly Oilfield | El Dorado, KS 67042 | Oil & Gas Operator | Jan 2024 |
| 94 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jan 2024 |
| 95 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
| 96 | Marshall Oil Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2017 |
| 97 | Mendell Petroleum Corporation | Castle Rock, CO 80104-9045 | Oil & Gas Operator | Sep 2004 |
| 98 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 99 | Mesa Operating LP | Irving, TX 75039-3746 | Oil & Gas Operator | Oct 2010 |
| 100 | Mid-Con Central Expl Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2014 |