| 101 | CAMPBELL UNIT | Washington County, PA | Gas Property | Feb 2025 |
| 102 | CAMPISE | Washington County, PA | Oil & Gas Property | Dec 2024 |
| 103 | CANESTRALE | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 104 | CANESTRALE | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 105 | CANIS MAJOR | Butler County, PA | Gas Property | Feb 2025 |
| 106 | CANNELLA | Susquehanna County, PA | Gas Property | Feb 2025 |
| 107 | CANNIZZARO | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 108 | CANNON | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 109 | CANO | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 110 | CANTERBURY | Armstrong County, PA | Gas Property | Dec 2024 |
| 111 | CANTONI 00 | Allegheny County, PA | Oil & Gas Property | Dec 2024 |
| 112 | CAPIZZI | Indiana County, PA | Gas Property | Dec 2024 |
| 113 | CAPPUCCI | Wyoming County, PA | Gas Property | Feb 2025 |
| 114 | CAPRIO 07 077 | Susquehanna County, PA | Gas Property | Feb 2025 |
| 115 | CAPTAIN | Fayette County, PA | Gas Property | Dec 2024 |
| 116 | CAPTAIN JACK SPARROW | Washington County, PA | Gas Property | Feb 2025 |
| 117 | CAPTAIN USA | Washington County, PA | Gas Property | Feb 2025 |
| 118 | CARBONARA | Fayette County, PA | Gas Property | Dec 2024 |
| 119 | CARDINE | Fayette County, PA | Gas Property | Feb 2025 |
| 120 | CARDON M-621 | Clearfield County, PA | Gas Property | Dec 2024 |
| 121 | CAREY R 00 | Susquehanna County, PA | Gas Property | Feb 2025 |
| 122 | CARJA INC | Armstrong County, PA | Gas Property | Dec 2024 |
| 123 | CARKIN R | Mercer County, PA | Gas Property | Dec 2024 |
| 124 | CARL A SPEVETZ ET UX | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 125 | CARL BAILEY | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 126 | CARL BE | Erie County, PA | Gas Property | Dec 2024 |
| 127 | CARL DECKER | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 128 | CARL E HARKLEROAD | Clearfield County, PA | Gas Property | Dec 2024 |
| 129 | CARL E MCCALL | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 130 | CARL ECKLUND | Clearfield County, PA | Gas Property | Dec 2024 |
| 131 | CARL FREDERICK | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 132 | CARL H & ELEANOR FITZSIMMONS | Westmoreland County, PA | Gas Property | Dec 2024 |
| 133 | CARL L C | Armstrong County, PA | Gas Property | Dec 2024 |
| 134 | CARL M HAGGERTY | Indiana County, PA | Gas Property | Dec 2024 |
| 135 | CARL PATCHIN | Cambria County, PA | Gas Property | Dec 2024 |
| 136 | CARL R EARHART | Westmoreland County, PA | Gas Property | Dec 2024 |
| 137 | CARL R PROPER | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 138 | CARL W ELLINGER ETUX | Clearfield County, PA | Gas Property | Dec 2024 |
| 139 | CARL W SNYDER | Armstrong County, PA | Gas Property | Dec 2024 |
| 140 | CARL WALKER WAYNE D BRAUGHLER ET UX | Indiana County, PA | Gas Property | Dec 2024 |
| 141 | CARLIN | Venango County, PA | Oil Property | Dec 1999 |
| 142 | CARLIN | Centre County, PA | Gas Property | Dec 2024 |
| 143 | CARLISLE RUTH UNIT | Washington County, PA | Gas Property | Feb 2025 |
| 144 | CARLSON | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 145 | CARLSON | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 146 | CARLSON | Warren County, PA | Oil & Gas Property | Dec 2011 |
| 147 | CARMALT BURNS | Jefferson County, PA | Gas Property | Dec 2024 |
| 148 | CARNEGIE NATURAL GAS CO | Fayette County, PA | Gas Property | Dec 2024 |
| 149 | CARNS DONALD | Washington County, PA | Gas Property | Feb 2025 |
| 150 | CARNS DONALD UNIT | Washington County, PA | Gas Property | Feb 2025 |
| 151 | CARNS UNIT | Washington County, PA | Oil & Gas Property | Dec 2013 |
| 152 | CAROFF | Indiana County, PA | Gas Property | Dec 2024 |
| 153 | CAROLYN & GEORGE MORRIS | Greene County, PA | Gas Property | Dec 2020 |
| 154 | CAROLYN KLINGENSMITH | Westmoreland County, PA | Gas Property | Dec 2024 |
| 155 | CAROLYN PARK | Indiana County, PA | Gas Property | Dec 2024 |
| 156 | CARPENETTI R | Susquehanna County, PA | Gas Property | Feb 2025 |
| 157 | CARPENTER | Fayette County, PA | Gas Property | Dec 2024 |
| 158 | CARPENTER | Greene County, PA | Gas Property | Feb 2025 |
| 159 | CARPENTER | Crawford County, PA | Gas Property | Dec 2024 |
| 160 | CARPENTER 03 023 0 | Bradford County, PA | Gas Property | Feb 2025 |
| 161 | CARPENTERTOWN COAL & CO | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 162 | CARR | Bradford County, PA | Gas Property | Feb 2025 |
| 163 | CARR | Westmoreland County, PA | Gas Property | Dec 2024 |
| 164 | CARR S BRA 2H | Bradford County, PA | Gas Property | Feb 2025 |
| 165 | CARRAR | Susquehanna County, PA | Gas Property | Feb 2025 |
| 166 | CARRINGTON | Warren County, PA | Oil & Gas Property | Dec 2014 |
| 167 | CARROLL | Clarion County, PA | Oil Property | Dec 1992 |
| 168 | CARROLL | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 169 | CARROLLS NURSERY | Crawford County, PA | Gas Property | Dec 2024 |
| 170 | CARSON | Fayette County, PA | Gas Property | Dec 2024 |
| 171 | CARSON | Susquehanna County, PA | Gas Property | Feb 2025 |
| 172 | CARSON | Washington County, PA | Oil Property | Dec 2001 |
| 173 | CARSON UNIT | Butler County, PA | Oil & Gas Property | Feb 2025 |
| 174 | CARTER | Venango County, PA | Gas Property | Feb 2025 |
| 175 | CARTER | Greene County, PA | Oil & Gas Property | Feb 2025 |
| 176 | CARTER | Washington County, PA | Oil & Gas Property | Jun 2012 |
| 177 | CARTY | Susquehanna County, PA | Gas Property | Feb 2025 |
| 178 | CARTY WISEMAN 1 | Susquehanna County, PA | Gas Property | Feb 2025 |
| 179 | CASHUP | Venango County, PA | Oil Property | Dec 2024 |
| 180 | CASTLE | Bradford County, PA | Gas Property | Feb 2025 |
| 181 | CASTLE 01 047 0 | Bradford County, PA | Gas Property | Feb 2025 |
| 182 | CASTLE BROOK | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 183 | CASTRO ET AL UNIT | Washington County, PA | Gas Property | Feb 2025 |
| 184 | CASTROGIOVANNI A | Susquehanna County, PA | Gas Property | Feb 2025 |
| 185 | CATALYST 5211 | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 186 | CATHALEENE | Clearfield County, PA | Gas Property | Dec 2024 |
| 187 | CATHCART NYAL M & LEWIS | Clearfield County, PA | Gas Property | Dec 2024 |
| 188 | CATHERINE MOLNAR | Fayette County, PA | Gas Property | Dec 2020 |
| 189 | CAYLOR | Jefferson County, PA | Gas Property | Dec 2024 |
| 190 | CAYLOR | Jefferson County, PA | Gas Property | Dec 2024 |
| 191 | CAYMAN | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 192 | CBC-MCKENDRICK | Indiana County, PA | Gas Property | Dec 2024 |
| 193 | CBC/RHODES | Indiana County, PA | Gas Property | Dec 2024 |
| 194 | CD SNYDER | Jefferson County, PA | Gas Property | Dec 2023 |
| 195 | CD84 2 JK | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 196 | CDJ BRA | Bradford County, PA | Gas Property | Feb 2025 |
| 197 | CEASE | Bradford County, PA | Gas Property | Feb 2025 |
| 198 | CEASER UNIT | Butler County, PA | Oil & Gas Property | Feb 2025 |
| 199 | CECILE C VAN CISE | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 200 | CEMETERY | Warren County, PA | Oil Property | Dec 2024 |