| 1 | A & A Tank Truck Company | Norman, OK 73070-8969 | Oil & Gas Operator | Jan 2024 |
| 2 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 3 | Analena Corporation | Dallas, TX 75251 | Oil Operator | Jun 2000 |
| 4 | Arkla Energy Resources | Shreveport, LA 71151 | Oil & Gas Operator | Mar 2015 |
| 5 | Arrow Oil & Gas, LLC | Norman, OK 73070 | Oil & Gas Operator | Apr 2024 |
| 6 | B & B SWD LLC | | Oil Operator | Jan 2024 |
| 7 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
| 8 | Bluff LTD (The) Partnership | Woodward, OK 73801-3160 | Oil Operator | Dec 1999 |
| 9 | Bryant Expl And Prod Co Inc | Elk City, OK 73648-0827 | Oil & Gas Operator | Apr 2014 |
| 10 | Burchfield Margaret S Dba Nu-Hope Oil Company | Seminole, OK 74818 | Oil & Gas Operator | Dec 2023 |
| 11 | Burlington Res Oil & Gas LP | | Oil & Gas Operator | Dec 2023 |
| 12 | Butler B F | Hobart, OK 73651 | Oil Operator | Apr 2014 |
| 13 | C & L Oil And Gas Corporation | Norman, OK 73069-8224 | Oil & Gas Operator | Jan 2024 |
| 14 | Capstone Oilfield Disposal Service LLC | Hennessey, OK 73742-0698 | Oil Operator | Dec 2019 |
| 15 | Central Ok Reclamation LLC | | Oil & Gas Operator | Jun 2014 |
| 16 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 17 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 18 | Collins Dillard Dba Dilco Oil Company | Mangum, OK 73554-4029 | Oil & Gas Operator | Jun 2023 |
| 19 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Apr 2024 |
| 20 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
| 21 | Crouch Petroleum Company | Amarillo, TX 79110 | Oil & Gas Operator | Mar 2015 |
| 22 | D & B Operating LLC | | Oil Operator | Jan 2023 |
| 23 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Apr 2024 |
| 24 | El Paso Natural Gas Company | El Paso, TX 79978 | Oil & Gas Operator | Apr 2013 |
| 25 | Enable Gas Transmission LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 26 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 27 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 28 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Dec 2023 |
| 29 | Greer & Beckham Gas Co Inc | Shamrock, TX 79079-0606 | Oil & Gas Operator | Aug 2013 |
| 30 | H2ox Operating LLC | | Oil Operator | Jan 2024 |
| 31 | Hagler William N | Farmington, NM 87499-0035 | Oil Operator | Apr 2014 |
| 32 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 33 | Harlow Corporation, The | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2014 |
| 34 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 35 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 36 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 37 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Dec 2023 |
| 38 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
| 39 | Kay Production Company Inc | Bowlegs, OK 74830-0115 | Oil & Gas Operator | Dec 2023 |
| 40 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 41 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 42 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 43 | Landers Production Company | Granite, OK 73547-0093 | Oil Operator | Apr 2014 |
| 44 | Lar-Mie Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Aug 1998 |
| 45 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 46 | LX4 LLC | | Oil Operator | Jan 2024 |
| 47 | Mac Laskey Kelly Oilfield | El Dorado, KS 67042 | Oil & Gas Operator | Jan 2024 |
| 48 | Marion Energy Inc | Houston, TX 770082292 | Oil & Gas Operator | May 2015 |
| 49 | Medina-Pierce Oil & Gas Co | | Oil & Gas Operator | Feb 2012 |
| 50 | Mendell Petroleum Corporation | Castle Rock, CO 80104-9045 | Oil & Gas Operator | Sep 2004 |
| 51 | Mep Operating LLC | | Oil & Gas Operator | Dec 2023 |
| 52 | Mid-Con Central Expl Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2014 |
| 53 | Moore Richard L | Morris, OK 74445 | Oil Operator | Aug 2013 |
| 54 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Jan 2024 |
| 55 | Nelson Exploration Corporation | | Oil & Gas Operator | Dec 2023 |
| 56 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Dec 2023 |
| 57 | Oklahoma Liquid Resources Inc | Owasso, OK 74055-0841 | Oil & Gas Operator | Dec 2023 |
| 58 | Oklahoma Petroleum Allies LLC | Ardmore, OK 73401 | Oil Operator | Oct 2023 |
| 59 | Ole Crow Operating | Wichita Falls, TX 76308-0072 | Oil Operator | Jan 2024 |
| 60 | Paramount Petroleum Corp | Dallas, TX 75374 | Oil Operator | Dec 2000 |
| 61 | PBT Enterprises Inc | Garber, OK 73738-0262 | Oil & Gas Operator | May 2023 |
| 62 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | Jan 2024 |
| 63 | Pruitt Operating Company LLC | Ratliff City, OK 73481-5802 | Oil & Gas Operator | Jan 2024 |
| 64 | R C Taylor Operating Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2024 |
| 65 | Red Hawk Disposal LLC | | Oil Operator | Jun 2023 |
| 66 | Rimrock Gas Company | Weatherford, OK 73096 | Oil & Gas Operator | May 2008 |
| 67 | Riverstone Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 68 | Royal Oaks Petroleum Corp | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2001 |
| 69 | Salty Dog Disposal LLC | | Oil Operator | Feb 2024 |
| 70 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 71 | SLT Dakota Operating, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Apr 2024 |
| 72 | Spring Operating Company | Edmond, OK 73083-2048 | Oil & Gas Operator | Jan 2024 |
| 73 | Superior Saltwater Disposal LLC | | Oil & Gas Operator | Dec 2016 |
| 74 | T & S Mud Disposal LLC | Lindsay, OK 73052-0754 | Oil Operator | Mar 2013 |
| 75 | Tiger Trucks Inc | Seminole, OK 74868 | Oil & Gas Operator | Jan 2024 |
| 76 | Tonys Crude Oil Reclaiming Plant Inc | | Oil Operator | Dec 2023 |
| 77 | Triple "S" Gas, Inc. | Dallas, TX 75355 | Oil & Gas Operator | Apr 2024 |
| 78 | Triple C Properties Inc | Seminole, OK 74818-0481 | Oil & Gas Operator | Jun 2023 |
| 79 | Trissell Alva Lee | Willow, OK 73673-9602 | Oil Operator | Apr 2020 |
| 80 | Trout Disposal Well Inc | Hammon, OK 73650-0292 | Oil & Gas Operator | Jul 2016 |
| 81 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 82 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Jan 2024 |
| 83 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 84 | Willow Pipeline Co | Wetherford, OK 73096 | Oil & Gas Operator | Feb 2002 |
| 85 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 86 | Woodward Iodine Corporation | Woodward, OK 73802-1245 | Oil & Gas Operator | Jan 2024 |
| 87 | Zimet Brothers Inc | | Oil Operator | Mar 2008 |