| 101 | Hilliard Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2009 |
| 102 | Hunt Petroleum Corp. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 103 | Imc Exploration Co. | | Oil & Gas Operator | Oct 1986 |
| 104 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 105 | Indigo Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2019 |
| 106 | Iron Springs Operating Co. Inc | | Oil & Gas Operator | Jan 2025 |
| 107 | J L Shoalmire Operating Co Inc | | Oil & Gas Operator | Oct 2013 |
| 108 | J-W Gathering Company | | Oil Operator | Jun 2016 |
| 109 | J-W Operating Company | Christoval, TX 76935 | Oil & Gas Operator | Feb 2026 |
| 110 | J. B. Stafford Et Al | | Oil Operator | Feb 1982 |
| 111 | J. D. Kemp | | Oil Operator | Aug 1994 |
| 112 | J. L. Shoalmire | | Oil & Gas Operator | Dec 2006 |
| 113 | J. T. Bierden, Jr. | | Oil Operator | Feb 1993 |
| 114 | Jack W. Grigsby | | Oil & Gas Operator | Sep 2001 |
| 115 | Jeems Bayou Production Corp. | Oil City, LA 71061 | Oil & Gas Operator | Feb 2026 |
| 116 | Jeff M. Hicks | | Oil & Gas Operator | May 1992 |
| 117 | Jurassic Exploration Co Inc. | | Oil & Gas Operator | Nov 1994 |
| 118 | KCS Resources LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 119 | Kisatchie Resources, LTD. | | Gas Operator | Jul 1991 |
| 120 | Koch Gateway Pipeline Company | | Oil & Gas Operator | Feb 2001 |
| 121 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
| 122 | Lancer Resources Company | | Oil & Gas Operator | Jan 1998 |
| 123 | Layton Oil Co | | Oil Operator | Feb 1994 |
| 124 | Long Oil & Natural Gas Corp. | | Oil & Gas Operator | Feb 1996 |
| 125 | Long Oil And Gas Expl., LTD | | Oil & Gas Operator | Apr 1988 |
| 126 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
| 127 | Louisiana Operating Co., Inc. | | Oil & Gas Operator | Aug 1994 |
| 128 | Louisiana-Hunt Petroleum Corp. | | Oil & Gas Operator | Dec 1985 |
| 129 | Lucky Strike Production LLC | | Oil Operator | Dec 2024 |
| 130 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |
| 131 | M. B. And D. I. Dupree | | Oil Operator | Nov 1992 |
| 132 | Machin & Associates, Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2026 |
| 133 | Mallard Drilling Corp. | | Oil & Gas Operator | Jan 1993 |
| 134 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Dec 2025 |
| 135 | Mark F Preddy & Associates,Inc | | Oil & Gas Operator | Dec 1987 |
| 136 | Marlan Anderson | | Oil Operator | Jan 2025 |
| 137 | Marshall Exploration, Inc. | | Oil & Gas Operator | Jun 1992 |
| 138 | Matador Production Company | Dallas, TX 75240 | Oil & Gas Operator | Feb 2026 |
| 139 | Matrix Production Company | Sugar Land, TX 77478 | Oil & Gas Operator | Dec 2025 |
| 140 | Matthews Operating Co., Inc. | | Gas Operator | Aug 2001 |
| 141 | Matthews-Bunn Operating Co. | | Oil & Gas Operator | Apr 1981 |
| 142 | Maxwell Oil & Gas Corp. | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2001 |
| 143 | Mesa Operating LTD Partnership | Amarillo, TX 79189 | Oil & Gas Operator | May 1994 |
| 144 | Midla, LTD. | | Oil & Gas Operator | Jun 1990 |
| 145 | Moon-Hines-Tigrett Opr Co Inc | | Oil & Gas Operator | Oct 1995 |
| 146 | Morgan Enterprises | | Oil & Gas Operator | Aug 1997 |
| 147 | Nabors Drilling Company, Inc. | | Oil & Gas Operator | Sep 1977 |
| 148 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 149 | Oil,Gas & Other Minerals, Inc. | | Oil & Gas Operator | Apr 1996 |
| 150 | Palmer Petroleum, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jun 2025 |
| 151 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 152 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 153 | Pedernales Petroleum Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 154 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
| 155 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 156 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 157 | Petroleum Exchange | | Oil & Gas Operator | Oct 1997 |
| 158 | Phillips Energy, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2018 |
| 159 | Phoenix-Vi-Roi | | Oil & Gas Operator | Mar 1986 |
| 160 | Pine Top Energy Inc. | | Oil & Gas Operator | May 1997 |
| 161 | Pinnacle Operating Company, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Feb 2026 |
| 162 | Pintail Minerals Corp. | | Gas Operator | Jun 1992 |
| 163 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
| 164 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 165 | Post Oak Production Corp. | | Oil & Gas Operator | Feb 1991 |
| 166 | Pritchard Engineering | | Oil & Gas Operator | Mar 1989 |
| 167 | Qep Energy Company | Midland, TX 79701 | Oil & Gas Operator | Nov 2025 |
| 168 | Quantent Energy Partners Operating LLC | | Gas Operator | Dec 2024 |
| 169 | Questar Expl. And Prod. Co. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jul 2011 |
| 170 | R & H Oil & Gas Inc | | Oil & Gas Operator | Apr 1992 |
| 171 | Ram Management Company, Inc. | | Oil & Gas Operator | Sep 1984 |
| 172 | Relmm Corporation | | Oil & Gas Operator | May 1980 |
| 173 | Relmm CSC/Imc | | Oil & Gas Operator | Apr 1977 |
| 174 | Remuda Oil & Gas Corp. | | Oil & Gas Operator | Aug 1987 |
| 175 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Feb 2026 |
| 176 | Retsal Drilling Co. | | Oil & Gas Operator | Jan 1984 |
| 177 | Retsal Production Company | | Oil & Gas Operator | Mar 1986 |
| 178 | Rippy Oil Company | Tyler, TX 75702 | Oil & Gas Operator | Feb 2026 |
| 179 | River Rouge Minerals | | Oil & Gas Operator | Dec 2024 |
| 180 | Rockcliff Operating La LLC | | Oil & Gas Operator | Jul 2022 |
| 181 | Rockland Oil Company | Addison, TX 75001 | Oil & Gas Operator | Nov 2025 |
| 182 | Roger Wilson, Inc. | | Oil Operator | Jul 2019 |
| 183 | Rosbottom Production Corp | Shreveport, LA 71134 | Oil & Gas Operator | Dec 2017 |
| 184 | Ross Production Co. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2000 |
| 185 | Sabine Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 186 | Samantha Petroleum Corp. | | Oil & Gas Operator | Apr 1987 |
| 187 | Samson Contour Energy E&P, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2017 |
| 188 | Seagull Energy E & P Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2015 |
| 189 | Seagull Mid-South Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 190 | Sewell Development Co Inc | | Oil & Gas Operator | Apr 1993 |
| 191 | Sierra Industries, Inc. | | Oil & Gas Operator | Apr 1989 |
| 192 | Sklar & Phillips Oil Co. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2000 |
| 193 | Sklar Exploration Company LLC | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 194 | Smith Operating And MGMT Co. | Shreveport, LA 71161 | Oil & Gas Operator | Jun 2023 |
| 195 | Southwest Operating Inc. | | Oil & Gas Operator | Dec 2024 |
| 196 | Stroud Petroleum, Inc. | Shreveport, LA 71162 | Oil & Gas Operator | Feb 2026 |
| 197 | Stroud Production LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 198 | Summit Gas LLC | | Oil & Gas Operator | Oct 2011 |
| 199 | Sun Exploration And Production Co | | Oil & Gas Operator | Jan 1990 |
| 200 | Sundance Energy Corporation | | Oil & Gas Operator | Jan 2025 |