| 101 | Geodyne Resources Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 102 | Golden Gas Production Company | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2023 |
| 103 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 104 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 105 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 106 | Graham-Michaelis Corporation | Wichita, KS 67201 | Oil & Gas Operator | Dec 2010 |
| 107 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2024 |
| 108 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Dec 2023 |
| 109 | Greenhead Energy Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 110 | Grynberg Petroleum Company | Greenwood Vge, CO 80111-3326 | Oil & Gas Operator | Oct 2019 |
| 111 | H & H Production Company | Muenster, TX 76252 | Oil & Gas Operator | Oct 2005 |
| 112 | H & L Operating Co LLP | Amarillo, TX 79114 | Oil & Gas Operator | Aug 2022 |
| 113 | H & L Operating Company | Amarillo, TX 79114 | Oil & Gas Operator | Feb 2020 |
| 114 | H2ok LLC | | Oil & Gas Operator | Jan 2024 |
| 115 | H2ox Operating LLC | | Oil Operator | Jan 2024 |
| 116 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2023 |
| 117 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 118 | Harris Oil & Gas Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2016 |
| 119 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 120 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 121 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Dec 2023 |
| 122 | Herrmann J B Oil And Gas | Amarillo, TX 79159-0670 | Oil & Gas Operator | Feb 2015 |
| 123 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 124 | Highland Energy Co | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 125 | Hodgden Operating Co., Inc. | Enid, OK 73702 | Oil & Gas Operator | Jan 2024 |
| 126 | Hodge T F | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2007 |
| 127 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |
| 128 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 129 | Hunt Chris Water Hauling Contractor Inc | Keyes, OK 73947-0004 | Oil Operator | Jun 2008 |
| 130 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 131 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2024 |
| 132 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 133 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Jan 2024 |
| 134 | J B Drilling Company Inc | Muldrow, OK 74948-1917 | Oil & Gas Operator | Dec 2023 |
| 135 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2024 |
| 136 | JCB II Enterprises LLC | Perryton, TX 79070 | Oil & Gas Operator | Jun 2023 |
| 137 | JCR, Jr - Operating, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Apr 2022 |
| 138 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Dec 2023 |
| 139 | Jico Exploration Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Nov 2004 |
| 140 | K M Gas Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Dec 2014 |
| 141 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
| 142 | Kantor Oil Company, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 143 | Keener Oil & Gas Company | Tulsa, OK 74119-4416 | Oil & Gas Operator | Jan 2024 |
| 144 | Keith F. Walker Oil & Gas Co., LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jan 2024 |
| 145 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Sep 2023 |
| 146 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |
| 147 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 148 | King Operating Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 149 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 150 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 151 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 152 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 153 | Lariat Energy & Supply Co Inc | Hulbert, OK 74441-0735 | Oil & Gas Operator | Dec 2023 |
| 154 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 155 | Lindenmuth & Associates Inc | Austin, TX 78703 | Oil & Gas Operator | Feb 2024 |
| 156 | LMR Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Sep 1998 |
| 157 | Lobo Exploration Company | Yukon, OK 73099 | Oil & Gas Operator | Dec 2023 |
| 158 | Lorentz Oil & Gas LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2023 |
| 159 | Louis Dreyfus Gas Marketing | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2018 |
| 160 | LX4 LLC | | Oil Operator | Jan 2024 |
| 161 | Lynan Energy Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | May 2013 |
| 162 | M & S Oil Co | Lawrenceburg, IN 47025-8675-8675 | Oil & Gas Operator | Aug 2000 |
| 163 | M E Klein & Associates LLC | Washington, OK 73070-8106 | Oil & Gas Operator | Jan 2024 |
| 164 | Mac Laskey Kelly Oilfield | El Dorado, KS 67042 | Oil & Gas Operator | Jan 2024 |
| 165 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jan 2024 |
| 166 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
| 167 | Marjo Operating Company Inc | Tulsa, OK 741010729 | Oil & Gas Operator | Dec 2023 |
| 168 | Marjo Operating Mid-Continent LLC | | Oil & Gas Operator | Jan 2024 |
| 169 | Marlin Oil Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2023 |
| 170 | Marsh Operating Company | Dallas, TX 75221 | Oil & Gas Operator | Dec 2023 |
| 171 | McKinney Operating Company | Canadian, TX 79014 | Gas Operator | May 2002 |
| 172 | Medicine Bow Operating Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2014 |
| 173 | Mendell Petroleum Corporation | Castle Rock, CO 80104-9045 | Oil & Gas Operator | Sep 2004 |
| 174 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 175 | Mesa Operating LP | Irving, TX 75039-3746 | Oil & Gas Operator | Oct 2010 |
| 176 | Mge Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 2023 |
| 177 | Mid-Con Central Expl Co | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2014 |
| 178 | Mid-Con Energy Operating, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | May 2020 |
| 179 | Mid-Con Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2024 |
| 180 | Mija LLC | | Oil & Gas Operator | Jan 2024 |
| 181 | Miller Petroleum Company | Yukon, OK 73099-0452 | Oil & Gas Operator | Aug 2009 |
| 182 | Monexco | Edmond, OK 73034-3776 | Oil & Gas Operator | Mar 2008 |
| 183 | Monexco LLC | Dallas, TX 75204-2634 | Oil & Gas Operator | Dec 2023 |
| 184 | Moore Richard L | Morris, OK 74445 | Oil Operator | Aug 2013 |
| 185 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Jan 2024 |
| 186 | Muegge, Clay A. | Lamont, OK 74643 | Oil & Gas Operator | Jan 2024 |
| 187 | Mustang Fuel Corp. Of Oklahoma | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2016 |
| 188 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Dec 2023 |
| 189 | National Oil Company (Ohio) The | Columbus, OH 43215 | Oil & Gas Operator | Sep 1999 |
| 190 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | Apr 2024 |
| 191 | Nbi Services, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Apr 2024 |
| 192 | Nelson Exploration Corporation | | Oil & Gas Operator | Dec 2023 |
| 193 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Dec 2023 |
| 194 | Nijean, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Feb 2012 |
| 195 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 196 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Apr 2024 |
| 197 | North Lake Resources LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Dec 2023 |
| 198 | O K Swabbing Inc | Hennessey, OK 73742-0835 | Oil & Gas Operator | Dec 2023 |
| 199 | O'Brien Energy Resources Corp | Portsmouth, NH 03801 | Oil & Gas Operator | Apr 2024 |
| 200 | Occidental Energy MKT Inc | Houston, TX 77001 | Oil & Gas Operator | Jan 2011 |