| 101 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 102 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2025 |
| 103 | Panda Pipe & Equipment, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1996 |
| 104 | Pangea Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2025 |
| 105 | Pangea'S Edge Operating Company LLC | Plano, TX 75025 | Oil & Gas Operator | Apr 2025 |
| 106 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 107 | Panhandle Producing Co., Oper. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 108 | Panhandle Producing Company | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 109 | Panola Corporation, The | Dallas, TX 75252 | Oil & Gas Operator | Sep 2002 |
| 110 | Pantano Energy | San Antonio, TX 78258 | Oil & Gas Operator | Jul 1999 |
| 111 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2025 |
| 112 | Pantex Oil & Gas LLC | Ranger, TX 76470 | Oil & Gas Operator | Jul 2018 |
| 113 | Panther Bayou Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | Apr 2021 |
| 114 | Panther City Energy LLC | San Antonio, TX 78205 | Oil & Gas Operator | Apr 2025 |
| 115 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
| 116 | Panther Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2017 |
| 117 | Panther LLC | Fort Worth, TX 76102 | Gas Operator | Dec 2020 |
| 118 | Papco, Inc. | Warren, PA 16365 | Oil & Gas Operator | Apr 2025 |
| 119 | Par Development | Midland, TX 79711 | Oil & Gas Operator | Apr 2025 |
| 120 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2025 |
| 121 | Par Producing Company | Snyder, TX 79550 | Oil & Gas Operator | Jun 2017 |
| 122 | Parabellum Energy Oper Co, LLC | Houston, TX 77056 | Oil Operator | Dec 2017 |
| 123 | Paradigm Exploration Company | Dallas, TX 75214 | Oil Operator | Sep 2020 |
| 124 | Paradigm Exploration, L.P. | La Grange, TX 78945 | Oil Operator | Sep 2008 |
| 125 | Paradigm Petroleum Corporation | Abilene, TX 79605 | Oil & Gas Operator | Apr 2025 |
| 126 | Paradis Investments, L.L.C. | Bellaire, TX 77401 | Oil Operator | Jun 2020 |
| 127 | Paragon Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 2025 |
| 128 | Paragon Energy, Inc. | Dallas, TX 75244 | Oil & Gas Operator | Apr 2025 |
| 129 | Paragon Oil & Gas, LLC | Aledo, TX 76008 | Oil & Gas Operator | Apr 2025 |
| 130 | Parallel Energy LP | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2015 |
| 131 | Parallel Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Jan 2010 |
| 132 | Parallel Petroleum LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 133 | Paramount Producing, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Oct 1996 |
| 134 | Parapetroleum | Kerrville, TX 78028 | Oil & Gas Operator | Feb 1997 |
| 135 | Pardee Production Co. | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2021 |
| 136 | Pardue Energy Inc. | Dallas, TX 75230 | Oil & Gas Operator | Dec 2015 |
| 137 | Pardue Oil | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2006 |
| 138 | Pardue Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 139 | Pardue, William M., III | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 1996 |
| 140 | Pardus Oil & Gas Operating, LP | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2022 |
| 141 | Paris Petroleum Corporation | Bellaire, TX 77402 | Oil & Gas Operator | Oct 1997 |
| 142 | Parish, John R. | Andrews, TX 79714 | Oil & Gas Operator | Apr 2025 |
| 143 | Park & Park Oil Co. | Allen, TX 75002 | Oil & Gas Operator | Apr 2025 |
| 144 | Park Avenue Resources, Inc. | San Antonio, TX 78212 | Oil Operator | Apr 2025 |
| 145 | Parker & Parsley Acq. Group LLC | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 146 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 147 | Parker & Parsley Development Co. | Midland, TX 79702 | Oil & Gas Operator | May 1995 |
| 148 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 149 | Parker & Parsley Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Nov 2000 |
| 150 | Parker & Parsley Producing LP | Midland, TX 79702 | Oil & Gas Operator | Oct 1997 |
| 151 | Parker & Parsley, Wpi Agent | Midland, TX 79701 | Oil & Gas Operator | Oct 1997 |
| 152 | Parker Energy Company | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 153 | Parker Hannifin Corporation | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 154 | Parker Oil Company | Abilene, TX 79601 | Oil & Gas Operator | Feb 2024 |
| 155 | Parker Operating Co., Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2000 |
| 156 | Parker, Robert Production, Inc. | Alice, TX 78333 | Gas Operator | Nov 1996 |
| 157 | Parks, Rhone Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 158 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 159 | Parkwood Production, Inc. | Buna, TX 77612 | Oil Operator | Apr 2025 |
| 160 | Parmer, I. A. | Abilene, TX 79606 | Oil & Gas Operator | Oct 1993 |
| 161 | Parnell Operating | Kamay, TX 76369 | Oil & Gas Operator | Apr 2025 |
| 162 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 163 | Parsley, Amos | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 164 | Partech Investments LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 165 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2025 |
| 166 | Parten Oil Co. | Houston, TX 77060 | Oil & Gas Operator | Jan 1994 |
| 167 | Parten Operating Inc. | Houston, TX 77069 | Oil & Gas Operator | Apr 2025 |
| 168 | Partin, Charles | Atascosa, TX 78002 | Oil & Gas Operator | Aug 2005 |
| 169 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 170 | Partners Production, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Apr 2025 |
| 171 | Paschal Petroleum, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 1994 |
| 172 | Paschal, Phil A. | Kilgore, TX 75662 | Oil Operator | Aug 2021 |
| 173 | Paschal, Shannon | Kilgore, TX 75663 | Oil Operator | Apr 2025 |
| 174 | Pash Energy, Inc. | Borger, TX 79008 | Oil & Gas Operator | Apr 2025 |
| 175 | Passmore, Mike F. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2025 |
| 176 | Pasture Production Company | Bryan, TX 77808 | Oil & Gas Operator | Apr 2005 |
| 177 | Patara Andover I LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2014 |
| 178 | Patara Oil & Gas LLC | Dallas, TX 75219 | Oil & Gas Operator | Mar 2018 |
| 179 | Pate, L. T. | Austin, TX 78701 | Oil & Gas Operator | Aug 1994 |
| 180 | Pathfinder Capital L.C. | Dallas, TX 75219 | Oil Operator | Mar 2008 |
| 181 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Aug 2003 |
| 182 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 183 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | Apr 2025 |
| 184 | Patoil Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 185 | Patricia Oil Company | Tuleta, TX 78162 | Oil Operator | Sep 2008 |
| 186 | Patrick & Hadley | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 187 | Patrick & Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2005 |
| 188 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 189 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 190 | Patrick Production Company | Houston, TX 77266 | Oil & Gas Operator | Apr 2025 |
| 191 | Patrick, G.R. | Nocona, TX 76255 | Oil Operator | Apr 2025 |
| 192 | Patrick, George & Patrick, Roger | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 193 | Patrick, Joe Ben | Petrolia, TX 76377 | Oil & Gas Operator | Oct 2009 |
| 194 | Patriot E & P Company | Tyler, TX 75710 | Oil & Gas Operator | Aug 2004 |
| 195 | Patriot Operating Company, Inc. | Houston, TX 77008 | Oil & Gas Operator | Sep 2003 |
| 196 | Patriot Production LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2023 |
| 197 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 198 | Patriot Services, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2008 |
| 199 | Patterson Energy Corporation | Dallas, TX 75205 | Oil & Gas Operator | Apr 2025 |
| 200 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Jan 2025 |