| 101 | DR Oil Company Limited Partnership | | Oil Operator | Apr 2012 |
| 102 | Drake Operating Company, LLC | El Dorado, AR 71730 | Oil Operator | Nov 2023 |
| 103 | Drenco Oil & Gas, Inc | | Oil Operator | Feb 2024 |
| 104 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Dec 2023 |
| 105 | Eason Petroleum Company | | Oil & Gas Operator | Jan 2020 |
| 106 | East Hampton Estates, LLC | Hampton, AR 71744 | Oil Operator | Feb 2024 |
| 107 | Edge Petroleum Oper. Co., Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
| 108 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
| 109 | Emco Operating Company, Inc | | Oil Operator | Jul 2011 |
| 110 | Enerco Operating Corporation | Dallas, TX 75230 | Oil & Gas Operator | Feb 2024 |
| 111 | Enerquest Oil & Gas LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Feb 2024 |
| 112 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 113 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 114 | Estes, Kenneth B - Pe | | Oil & Gas Operator | Aug 2019 |
| 115 | Everett, Jack T | | Oil Operator | Mar 2010 |
| 116 | Exok, Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Dec 2023 |
| 117 | Extex Operating Company | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 118 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 119 | Eylau Oil Inc. | Atlanta, TX 75551 | Oil & Gas Operator | Oct 2021 |
| 120 | Fairview Production Company | Muldrow, OK 74948 | Oil & Gas Operator | Nov 2012 |
| 121 | Faith Energy, LLC | Shreveport, LA 71105 | Oil & Gas Operator | Feb 2024 |
| 122 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Jan 2024 |
| 123 | FF&N Oil Company | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2024 |
| 124 | First Ascent Operating LLC | Addison, TX 75001 | Oil Operator | Feb 2024 |
| 125 | Fite Oil & Gas, Inc. | Shreveport, LA 71163 | Oil & Gas Operator | Apr 2024 |
| 126 | Flywheel Energy Production, LLC | Oklahoma City, OK 73102 | Gas Operator | Feb 2024 |
| 127 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 128 | Fort Exploration Company | FT Smith, AR 72901 | Gas Operator | May 2001 |
| 129 | Fort Operating Company | Fort Smith, AR 72923 | Gas Operator | Nov 2018 |
| 130 | Foster, Bill Operator | | Oil Operator | May 2022 |
| 131 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 132 | Four R Operating Company, LLC | Smackover, AR 71762 | Oil & Gas Operator | Jan 2024 |
| 133 | Freedom Energy Inc | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Apr 2024 |
| 134 | Frisby, William | | Oil Operator | Feb 2012 |
| 135 | Gerard Associates, LC | Shreveport, LA 71101 | Oil Operator | Feb 2024 |
| 136 | Gerard, CHC | | Oil Operator | Jun 2010 |
| 137 | Goldco Operating LLC | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 138 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 139 | Great Lakes Chemical Corporation | West Lafayette, IN 47906 | Oil & Gas Operator | Nov 2023 |
| 140 | Griffis, Ronnie Et Al | Stephens, AR 71764 | Oil & Gas Operator | Feb 2024 |
| 141 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 142 | Gulfstream Oil & Gas, Inc. | Allen, TX 75013 | Oil & Gas Operator | Jun 2018 |
| 143 | Hall Phoenix Energy, LLC | Frisco, TX 75034 | Oil & Gas Operator | Jun 2022 |
| 144 | Hall, Charles C | | Oil Operator | Sep 2017 |
| 145 | Hall-Hargraves, LLC | Oil City, LA 71061 | Oil & Gas Operator | Dec 2023 |
| 146 | Hallwood Petroleum, LLC | Dallas, TX 75219 | Oil & Gas Operator | Jan 2010 |
| 147 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Jan 2024 |
| 148 | Harken Exploration Company | Houston, TX 77079 | Oil & Gas Operator | Mar 2008 |
| 149 | Harvest Oil, LP | Camden, AR 71701 | Oil & Gas Operator | Feb 2024 |
| 150 | Hawkins Oil & Gas Inc | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2016 |
| 151 | Hendricks Oil Company, LLC | | Oil Operator | Jan 2018 |
| 152 | Hickman, Johnny | | Oil & Gas Operator | Oct 2011 |
| 153 | High Plains Petroleum LLC | Bentonville, AR 72712 | Gas Operator | Jan 2024 |
| 154 | Highland Oil & Gas LLC | Houston, TX 77079-7220 | Oil & Gas Operator | Feb 2015 |
| 155 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Dec 2023 |
| 156 | Holloway, Donald & Francis | | Oil Operator | Jul 2006 |
| 157 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Dec 2023 |
| 158 | Hughes Eastern Corporation | Ridgeland, MS 39157 | Oil & Gas Operator | Dec 2023 |
| 159 | Hughey, Ronnie Oil Company LLC | Stephens, AR 71764 | Oil Operator | Mar 2024 |
| 160 | Hunt, H L | Dallas, TX 75202-2785 | Oil & Gas Operator | Feb 2020 |
| 161 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 162 | Inland Energy, LLC | El Dorado, AR 71730 | Oil Operator | Feb 2024 |
| 163 | J & L Oil Company | El Dorado, AR 71730 | Oil Operator | Jan 2024 |
| 164 | J-Lu LTD Co | Ashdown, AR 71822 | Oil Operator | Jan 2024 |
| 165 | Jackson Family Oil Company LLC | Hope, AR 71801 | Oil Operator | Feb 2024 |
| 166 | Jamex, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Apr 2024 |
| 167 | Jamie Oil, Inc | Hot Springs, AR 71913 | Oil Operator | Feb 2024 |
| 168 | Jax Oil Co., LLC | El Dorado, AR 71730 | Oil & Gas Operator | Dec 2023 |
| 169 | Jeems Bayou Production Corp. | Oil City, LA 71061 | Oil & Gas Operator | Apr 2024 |
| 170 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
| 171 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2010 |
| 172 | KCS Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 173 | Kebo Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Apr 2024 |
| 174 | Keeler Investment GP., LLC | Burneyville, OK 73430 | Gas Operator | Mar 2024 |
| 175 | Key Energy Services, LLC | Houston, TX 77042 | Oil Operator | Jan 2024 |
| 176 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 177 | KLS, Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Dec 2023 |
| 178 | Krog Partners, LLC | Kilgore, TX 75663 | Oil Operator | Apr 2024 |
| 179 | L & B Enterprise, LLC | Camden, AR 71701 | Oil Operator | Feb 2024 |
| 180 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Dec 2023 |
| 181 | L & L Energy Company | Huntington, AR 72940-0099 | Oil & Gas Operator | Nov 2023 |
| 182 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 183 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Nov 2019 |
| 184 | Lamkin Oil Company | Stephens, AR 71764 | Oil Operator | Dec 2023 |
| 185 | Lamkin Production Company, LLC | Stephens, AR 71764 | Oil Operator | Dec 2023 |
| 186 | Langley, James Operating Company, Inc | Smackover, AR 71762 | Oil & Gas Operator | Feb 2024 |
| 187 | Langley, Jerry Oil Company LLC | Smackover, AR 71762 | Oil Operator | Feb 2024 |
| 188 | Lanxess Corporation | El Dorado, AR 71730 | Oil & Gas Operator | Feb 2024 |
| 189 | Laray Oil, LLC | Louann, AR 71751 | Oil & Gas Operator | Feb 2024 |
| 190 | Lawco Exploration Inc | Bentonville, AR 72712 | Oil & Gas Operator | Feb 2024 |
| 191 | Lboc, LLC | Norphlet, AR 71759 | Oil Operator | Feb 2024 |
| 192 | Lime Rock Resources III-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2024 |
| 193 | Live Oak Energy, Inc | | Oil & Gas Operator | Aug 2021 |
| 194 | Longview Production Company | Dallas, TX 75243-3795 | Oil & Gas Operator | Feb 2024 |
| 195 | Lorentz Oil & Gas LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2023 |
| 196 | Lowery Oil Company, LLC | | Oil Operator | Dec 2009 |
| 197 | Lowery-Waller Oil Company | | Oil Operator | Dec 2009 |
| 198 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2024 |
| 199 | Lyons & Prentiss | | Oil Operator | Feb 2024 |
| 200 | M & P Exploration, Inc. | | Gas Operator | Nov 2017 |