| 101 | Igas Corp | Charlottesville, VA 22905-5246 | Gas Operator | Dec 2000 |
| 102 | Inr Opr LLC | Morgantown, WV 26508-9201 | Gas Operator | Jun 2025 |
| 103 | Interstate Gas MKT Inc | Indiana, PA 15701 | Oil & Gas Operator | Dec 2018 |
| 104 | J & J Enterprises Inc | Indiana, PA 15701-1473 | Gas Operator | Dec 1985 |
| 105 | Jack Co | Indiana, PA 15701-0697 | Oil & Gas Operator | Dec 2013 |
| 106 | Jack Production Inc | Indiana, PA 15701-0697 | Oil & Gas Operator | Dec 2011 |
| 107 | James Drilling Corp | Blairsville, PA 15717 | Oil & Gas Operator | Dec 2004 |
| 108 | JC Enterprises | Andrews, TX 79714 | Oil & Gas Operator | Jun 2012 |
| 109 | JMM Resources LLC | Indianola, PA 15051 | Oil & Gas Operator | Dec 2024 |
| 110 | John L Crawford Inc | New Bethlehem, PA 16242-2113 | Oil & Gas Operator | Dec 2024 |
| 111 | Jr Resources LP | Ringgold, PA 15770-8346 | Oil & Gas Operator | Dec 2021 |
| 112 | Juart Exploration Inc | Home, PA 15747-6711 | Gas Operator | Dec 2017 |
| 113 | Kastle Resources Enterprises Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 114 | Kavouras Thomas | Apollo, PA 15613-1108 | Oil & Gas Operator | Dec 2023 |
| 115 | Kerr McGee Chem Corp | Oklahoma City, OK 73125-0861 | Gas Operator | Dec 1989 |
| 116 | Keyrock Energy LLC | Johnson City, TN 37604-5749 | Oil & Gas Operator | Dec 2024 |
| 117 | Keystate Inc | Davidsville, PA 15928-9655 | Gas Operator | Dec 2012 |
| 118 | Keystone Acquisitions LLC | Anita, PA 15711-9747 | Gas Operator | Dec 2024 |
| 119 | Keystone Energy Oil & Gas Inc | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2016 |
| 120 | Kriebel Gas Inc | Clarion, PA 16214-0765 | Oil & Gas Operator | Dec 1999 |
| 121 | Kriebel Minerals Inc | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2020 |
| 122 | Kriebel Natural Gas Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2024 |
| 123 | KSM Energy Inc | Pittsburgh, PA 15238-3156 | Gas Operator | Dec 2024 |
| 124 | Kyle Energy Inc NV | Apollo, PA 15613-0249 | Gas Operator | Dec 1996 |
| 125 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 126 | Lee E & M Lee Minter | New Kensington, PA 15068-1440 | Gas Operator | Dec 2003 |
| 127 | Lee Lynn MGMT Co | Indiana, PA 15701-3400 | Oil & Gas Operator | Dec 1991 |
| 128 | Linn Opr Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Dec 2007 |
| 129 | Linn Opr LLC | Indiana, PA 15701-8914 | Gas Operator | Dec 2004 |
| 130 | Locin Oil Corporation | Katy, TX 77494 | Oil & Gas Operator | Aug 2025 |
| 131 | Madtick Dev Corp | Punxsutawney, PA 15767-1179 | Oil & Gas Operator | Dec 2024 |
| 132 | Marco Drilling Inc | Monroeville, PA 15146-0278 | Oil & Gas Operator | Dec 2024 |
| 133 | MC123 LLC | Indiana, PA 15701-8718 | Gas Operator | Dec 2024 |
| 134 | MDS Energy Dev LLC | Kittanning, PA 16201-4403 | Oil & Gas Operator | Jun 2025 |
| 135 | MDS Energy LTD | Kittanning, PA 16201-4403 | Gas Operator | Feb 2015 |
| 136 | Meridian Oil & Gas Enterprises Inc | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 137 | Mid East Oil Co | Indiana, PA 15701-5378 | Gas Operator | Dec 2006 |
| 138 | Minter Lee M | Bradford, PA 16701-3763 | Gas Operator | Dec 1991 |
| 139 | Mount Chestnut Dev LLC | Butler, PA 16002-3940 | Gas Operator | Dec 2017 |
| 140 | MTN V Oil & Gas Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Dec 2024 |
| 141 | Natural Energy Dev Corp | Pittsburgh, PA 15241-1548 | Oil & Gas Operator | Dec 2018 |
| 142 | NCL Natural Resources LLC | Spring, TX 77381-5261 | Oil & Gas Operator | Dec 2017 |
| 143 | New York Natural Gas Corp | Pittsburgh, PA 15222-1402 | Gas Operator | Dec 1990 |
| 144 | North Cambria Fuel Co | Blairsville, PA 15717-7961 | Gas Operator | Dec 2008 |
| 145 | Northeastern Opr Co Inc | Shelocta, PA 15774-2346 | Gas Operator | Dec 2024 |
| 146 | NTS Energy LLC | Indiana, PA 15701-1801 | Oil & Gas Operator | Dec 2015 |
| 147 | Oil & Gas MGMT Inc | Mount Pleasant, PA 15666-3304 | Oil & Gas Operator | Dec 2024 |
| 148 | Oil & Gas SVC Inc | Reelsville, IN 46171-9686 | Gas Operator | Dec 1991 |
| 149 | Pa Gen Energy Co LLC | Warren, PA 16365-2510 | Oil & Gas Operator | Jun 2025 |
| 150 | Pa Gen Energy Corp | Warren, PA 16365-2510 | Oil & Gas Operator | Dec 2002 |
| 151 | Pa Mineral SVCS LLC | Indiana, PA 15701 | Oil & Gas Operator | Dec 2024 |
| 152 | Pa Prod SVC Inc | Indiana, PA 15701-0421 | Oil & Gas Operator | Dec 2024 |
| 153 | Pa State Sys Of Higher Ed Indiana Univ | Indiana, PA 15705-0001 | Gas Operator | Dec 2012 |
| 154 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 155 | Patrick Shipley | Indiana, PA 15701-6501 | Oil & Gas Operator | Dec 2016 |
| 156 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2024 |
| 157 | PDC Mountaineer LLC | Bridgeport, WV 26330-9665 | Oil & Gas Operator | Dec 2017 |
| 158 | Pemco Gas Inc | Indian Harbor B, FL 32937 | Oil & Gas Operator | Dec 1997 |
| 159 | Penn VIew Exploration Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Dec 2024 |
| 160 | Penneco Oil Company, Inc. | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 161 | Pennzoil Prod Co | Vienna, WV 26105-2141 | Oil & Gas Operator | Dec 2000 |
| 162 | Pentex Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2003 |
| 163 | Peoples Gas Co LLC | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2005 |
| 164 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 165 | Petro SVC Partners Inc | Indiana, PA 15701-8556 | Oil & Gas Operator | Dec 2024 |
| 166 | Petrobank Opr Co | Denver, CO 80202-4675 | Gas Operator | Dec 1992 |
| 167 | Phillips Exploration Inc | Warrendale, PA 15086 | Oil & Gas Operator | Dec 2012 |
| 168 | Phillips Prod Co | Warrendale, PA 15086-7537 | Oil & Gas Operator | Dec 2011 |
| 169 | Phoenix Energy Prod Inc | Freeport, PA 16229-1126 | Oil & Gas Operator | Dec 2024 |
| 170 | Pin Oak Energy Partners LLC | Akron, OH 44311 | Oil & Gas Operator | Jun 2025 |
| 171 | Power Gas MKT & Trans Inc | Akron, OH 44311-1062 | Oil & Gas Operator | Dec 2008 |
| 172 | Questa Petro Co | Pittsburgh, PA 15241-0863 | Oil & Gas Operator | Dec 2023 |
| 173 | R & R Oil & Gas LLC | Big Spring, TX 79720 | Oil & Gas Operator | Dec 2024 |
| 174 | Range Opr Co | Yatesboro, PA 16263-0235 | Oil & Gas Operator | Dec 1999 |
| 175 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jun 2025 |
| 176 | Red Oak Energy LLC | Clarksburg, PA 15725-8824 | Oil & Gas Operator | Dec 2024 |
| 177 | Redmill Drilling | Kittanning, PA 16201-7123 | Oil & Gas Operator | Jun 2025 |
| 178 | Remnant Group Inc | Pittsburgh, PA 15238-1359 | Oil & Gas Operator | Dec 2013 |
| 179 | Richards Drilling Co | Venango, PA 16440-1123 | Oil & Gas Operator | Dec 2015 |
| 180 | Roach & Assoc Inc | Pittsburgh, PA 15228-1924 | Gas Operator | Dec 2024 |
| 181 | Roof Carl | Indiana, PA 15701 | Gas Operator | Dec 2024 |
| 182 | Ruffner Clair L III | Marion Center, PA 15759-7818 | Gas Operator | Dec 2024 |
| 183 | Shaner W G | Longmont, CO 80503 | Gas Operator | Dec 2021 |
| 184 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 185 | Shearer James I | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 186 | Shelly Oil & Gas Inc | Avonmore, PA 15618-9748 | Gas Operator | Dec 2024 |
| 187 | SK Opr Inc | Cabot, PA 16023-1250 | Gas Operator | Dec 2024 |
| 188 | Snyder Bros Inc | Kittanning, PA 16201 | Oil & Gas Operator | Jun 2025 |
| 189 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 190 | Somerset Oil & Gas Company | Portland, TX 78374 | Oil & Gas Operator | Dec 2006 |
| 191 | Spartan Resource MGMT Corp | Rural Valley, PA 16249-0326 | Gas Operator | Dec 2024 |
| 192 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2024 |
| 193 | Stephenson Group Natural Gas Co | Smicksburg, PA 16256-1710 | Gas Operator | Dec 2020 |
| 194 | Stephenson Mark M | Smicksburg, PA 16256-1710 | Gas Operator | Dec 2009 |
| 195 | Stewart Drilling Program | Home, PA 15747-9801 | Oil & Gas Operator | Dec 2014 |
| 196 | Stewart Inc | Ringling, OK 73456 | Oil & Gas Operator | Jun 2025 |
| 197 | Susquehanna Energies Inc | Punxsutawney, PA 15767-4004 | Oil & Gas Operator | Dec 2024 |
| 198 | Susquehanna Expl & Prod LLC | Glen Campbell, PA 15742-0159 | Gas Operator | Dec 2024 |
| 199 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 200 | T & T Compression Inc | Clymer, PA 15728-1014 | Gas Operator | Dec 2024 |