| 101 | Jackson Oil Company | Ranger, TX 76470 | Oil & Gas Operator | Sep 1998 |
| 102 | Jackson Petroleum Consult Inc | Dallas, TX 75287 | Oil & Gas Operator | Aug 1994 |
| 103 | Jackson Petroleum Consulting,Inc | Plano, TX 75075 | Oil & Gas Operator | Sep 2019 |
| 104 | Jackson Production Co. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2008 |
| 105 | Jackson, D. L., & Son | Jacksboro, TX 76458 | Oil & Gas Operator | May 2001 |
| 106 | Jackson, Donald W. | Borger, TX 79008 | Oil & Gas Operator | Dec 2001 |
| 107 | Jackson, Jeral W. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2004 |
| 108 | Jackson, Neil A. | Snyder, TX 79549 | Oil & Gas Operator | Dec 1993 |
| 109 | Jaco Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Mar 2025 |
| 110 | Jaco Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Apr 1998 |
| 111 | Jaco Production Company | Bakersfield, CA 93380 | Oil Operator | Dec 2024 |
| 112 | Jaco, Troy Inc. | Sherman, TX 75091 | Oil & Gas Operator | Mar 2025 |
| 113 | Jacobi-Johnson Energy, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 1998 |
| 114 | Jacobs, C. E., Co. | Albany, TX 76430 | Oil & Gas Operator | Sep 2022 |
| 115 | Jad Oil, Inc. | Hallettsville, TX 77964 | Oil & Gas Operator | Mar 2025 |
| 116 | Jade Enterprises, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2025 |
| 117 | Jag Operating, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2019 |
| 118 | Jag Petroleum LLC | Houston, TX 77058 | Oil Operator | Nov 2009 |
| 119 | Jagged Peak Energy LLC | Oklahoma City, OK 73126 | Oil & Gas Operator | Mar 2025 |
| 120 | Jaid Energy, LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 121 | Jalapeno Corporation | Albuquerque, NM 87103 | Oil & Gas Operator | Dec 2023 |
| 122 | Jalapeno Operating Company, LLC | Plntersville, TX 77363 | Oil Operator | Mar 2025 |
| 123 | Jamco Oil | Somerset, TX 78069 | Oil Operator | Mar 2025 |
| 124 | James Energy Corporation | Houston, TX 77227 | Oil & Gas Operator | Jan 1996 |
| 125 | James Operating | Iowa Park, TX 76367 | Oil & Gas Operator | Mar 2025 |
| 126 | James, Deryl | Nocona, TX 76255 | Oil & Gas Operator | Mar 2025 |
| 127 | James, J. W. | Somerset, TX 78069 | Oil & Gas Operator | Aug 2004 |
| 128 | Jamex II LTD., L.L.P. | Dallas, TX 75252 | Oil & Gas Operator | Sep 2002 |
| 129 | Jamex, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Mar 2025 |
| 130 | Jan Oil Company | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 131 | Jandar Exploration | Henderson, TX 75653 | Oil & Gas Operator | Dec 1994 |
| 132 | Jandar Exploration, L. C. | Tyler, TX 75703 | Oil & Gas Operator | Mar 2025 |
| 133 | Janex Oil Co., Inc. | Dallas, TX 75219 | Oil & Gas Operator | Jun 2005 |
| 134 | Janssen, Nelson | Victoria, TX 77904 | Oil & Gas Operator | Mar 2025 |
| 135 | Janssen, Wayne Allen | Runge, TX 78151 | Oil & Gas Operator | May 2010 |
| 136 | Jap Oil Corporation | Levelland, TX 79336 | Oil & Gas Operator | May 1994 |
| 137 | Jaraco Energy | Cross Plains, TX 76443 | Oil & Gas Operator | Jun 2005 |
| 138 | Jarutowicz Oil Company | Floresville, TX 78114 | Oil & Gas Operator | Mar 2025 |
| 139 | Jasmar Oil Co. | Levelland, TX 79336 | Oil & Gas Operator | Mar 2008 |
| 140 | Jasper Energy, Incorporated | Decatur, TX 76234 | Oil Operator | Mar 2025 |
| 141 | Jasper Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Jun 2002 |
| 142 | Jasper Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1996 |
| 143 | Jatam Inc. | Sterling City, TX 76951 | Oil & Gas Operator | Mar 2025 |
| 144 | Jaten Oil Co. | Amarillo, TX 79105 | Oil & Gas Operator | Apr 1993 |
| 145 | Javelin Energy Partners Management, LLC | Irving, TX 75038 | Oil & Gas Operator | Mar 2025 |
| 146 | Jaw Oil Co. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 1997 |
| 147 | Jaxploration Company L.C. | Andrews, TX 79714 | Oil & Gas Operator | Dec 1995 |
| 148 | Jay Dee Oil | Garland, TX 75041 | Oil & Gas Operator | Mar 2025 |
| 149 | Jay Management Company LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2025 |
| 150 | Jay Resources Corporation | Houston, TX 77010 | Oil & Gas Operator | Feb 1998 |
| 151 | Jay-Dee Operating Company | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Aug 2000 |
| 152 | Jaybird Resources, LLC | Cuero, TX 77954 | Oil Operator | Mar 2025 |
| 153 | JB Oil & Gas Well Service | Dilley, TX 78017 | Oil & Gas Operator | Mar 2025 |
| 154 | JB Production Company | Denton, TX 76202 | Oil & Gas Operator | Jul 2004 |
| 155 | JB Production LLC | Benbrook, TX 76126 | Oil Operator | Jun 2024 |
| 156 | JBR-Finley Wells, LLC | Fredericksbrg, TX 78624 | Oil Operator | Mar 2025 |
| 157 | JC Enterprises | Andrews, TX 79714 | Oil & Gas Operator | Jun 2012 |
| 158 | Jca Oil Co. | Houston, TX 77035 | Oil Operator | Mar 2025 |
| 159 | JCB II Enterprises LLC | Perryton, TX 79070 | Oil & Gas Operator | Jun 2023 |
| 160 | JCC Energy, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2025 |
| 161 | JCR, Jr - Operating, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Apr 2022 |
| 162 | JCS Company | Graham, TX 76450 | Oil & Gas Operator | May 2001 |
| 163 | JD Oil Company | Longview, TX 75605 | Oil & Gas Operator | Sep 2014 |
| 164 | JD Operating | Eastland, TX 76448 | Oil & Gas Operator | Mar 2025 |
| 165 | JD Production Co | Waco, TX 76702 | Oil & Gas Operator | Dec 2009 |
| 166 | Jda Energy, LLC | Houston, TX 77058 | Oil & Gas Operator | Mar 2025 |
| 167 | JDL Operating, LLC | Holliday, TX 76366 | Oil & Gas Operator | Mar 2025 |
| 168 | Je Energy Partners, LLC | Alice, TX 78333 | Oil Operator | Mar 2025 |
| 169 | Jeems Bayou Production Corp. | Oil City, LA 71061 | Oil & Gas Operator | Mar 2025 |
| 170 | Jeff Dooley Operating, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 171 | Jeffcoat Production Company Inc. | Spurger, TX 77660 | Oil & Gas Operator | Oct 2024 |
| 172 | Jeffers & Bolinger | Burkburnett, TX 76354 | Oil & Gas Operator | Sep 1995 |
| 173 | Jeffers Drilling Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2001 |
| 174 | Jefferson Block 24 Oil & Gas LLC | Dallas, TX 75287 | Oil & Gas Operator | Mar 2025 |
| 175 | Jena Operating Company, Inc. | Dallas, TX 75367 | Oil & Gas Operator | May 2007 |
| 176 | Jenco Petroleum Corporation | The Woodlands, TX 77380 | Oil Operator | Mar 2025 |
| 177 | Jenex Operating Company Of Texas | Denver, CO 80209 | Oil & Gas Operator | Aug 2003 |
| 178 | Jenex Petroleum Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2025 |
| 179 | Jenkins Oil Corporation | Hankamer, TX 77560 | Oil & Gas Operator | Mar 2008 |
| 180 | Jenkins, R. D. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2025 |
| 181 | Jenn Oil | Albany, TX 76430 | Oil & Gas Operator | Mar 2025 |
| 182 | Jennings Exploration Company | Beeville, TX 78102 | Oil & Gas Operator | Feb 2024 |
| 183 | Jericho Energy, Inc | Lipan, TX 76462 | Gas Operator | Mar 2025 |
| 184 | Jerry Barnett & Son | Graham, TX 76450 | Oil Operator | Sep 2024 |
| 185 | Jerry Hess Operating Company | Muenster, TX 76252 | Oil Operator | Dec 2006 |
| 186 | Jess Energy Company | Tyler, TX 75710 | Oil & Gas Operator | Sep 1997 |
| 187 | Jesus Maria Corporation | San Antonio, TX 78216 | Oil Operator | Mar 2025 |
| 188 | Jeswood Productions, LLC | Denton, TX 76206 | Oil & Gas Operator | Mar 2025 |
| 189 | Jet Black Oil, Inc. | Katy, TX 77494 | Oil Operator | Mar 2025 |
| 190 | Jet Oil Producers | Coldspring, TX 77331 | Oil & Gas Operator | Mar 2008 |
| 191 | Jet Oil Producers, Inc. | Coldspring, TX 77331 | Oil & Gas Operator | Mar 2025 |
| 192 | Jet Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2002 |
| 193 | Jet-Star Co. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2025 |
| 194 | Jet-Tex Oil & Gas, LLC | Rockdale, TX 76567 | Oil Operator | Mar 2025 |
| 195 | Jetco Exploration | Victoria, TX 77903 | Oil & Gas Operator | May 2007 |
| 196 | Jeter Drilling Production | Del Rio, TX 78840 | Oil & Gas Operator | Mar 2025 |
| 197 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 198 | Jetta Permian, LP | Midland, TX 79701 | Oil & Gas Operator | Jun 2021 |
| 199 | JF Trust | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2024 |
| 200 | JFC Construction LLC | East Bernard, TX 77435 | Oil Operator | Mar 2025 |