| 1201 | CHEREP | Allegheny County, PA | Oil & Gas Property | Dec 2025 |
| 1202 | CHERICO WELL PAD | Butler County, PA | Gas Property | Dec 2025 |
| 1203 | CHERRY HILL | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 1204 | CHERRYMILLS | Sullivan County, PA | Gas Property | Dec 2025 |
| 1205 | CHESS | Fayette County, PA | Gas Property | Dec 2024 |
| 1206 | CHESS | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 1207 | CHESTER | Jefferson County, PA | Gas Property | Dec 2025 |
| 1208 | CHESTNUT RIDGE | Indiana County, PA | Gas Property | Dec 2025 |
| 1209 | CHIARELLI UNIT | Washington County, PA | Gas Property | Dec 2025 |
| 1210 | CHICKEN HAWK | Tioga County, PA | Gas Property | Dec 2025 |
| 1211 | CHICO UNIT | Fayette County, PA | Gas Property | Dec 2025 |
| 1212 | CHILSON JENNINGS | Bradford County, PA | Gas Property | Dec 2025 |
| 1213 | CHOCONUT VALLEY FARMS 07 090 0 | Susquehanna County, PA | Gas Property | Dec 2025 |
| 1214 | CHRISMAN | Forest County, PA | Oil & Gas Property | Dec 2022 |
| 1215 | CHRISTEN | Greene County, PA | Gas Property | Dec 2025 |
| 1216 | CHRISTENSEN | Butler County, PA | Gas Property | Dec 2025 |
| 1217 | CHRISTENSEN | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1218 | CHRISTIANSON | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1219 | CHRISTMAN | Warren County, PA | Oil Property | Dec 2024 |
| 1220 | CHRISTMAN UNIT | Washington County, PA | Oil & Gas Property | Dec 2025 |
| 1221 | CHRISTOPHER | Fayette County, PA | Gas Property | Dec 2025 |
| 1222 | CHRU | Armstrong County, PA | Gas Property | Dec 2025 |
| 1223 | CHUBBOY | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 1224 | CHURCH LEASE CHURCH | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1225 | CIARIMBOLI | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1226 | CICALA | Armstrong County, PA | Gas Property | Dec 2025 |
| 1227 | CIRCLE H | Bradford County, PA | Gas Property | Dec 2025 |
| 1228 | CIRCLE Z BRA | Bradford County, PA | Gas Property | Mar 2025 |
| 1229 | CITRO | Greene County, PA | Gas Property | Dec 2025 |
| 1230 | CITY OF DUBOIS | Clearfield County, PA | Gas Property | Dec 2025 |
| 1231 | CITY OF DUBOIS N | Clearfield County, PA | Gas Property | Dec 2025 |
| 1232 | CK HAWTHORNE | Jefferson County, PA | Gas Property | Dec 2025 |
| 1233 | CLAIR | Jefferson County, PA | Gas Property | Dec 2024 |
| 1234 | CLAIR B | Indiana County, PA | Gas Property | Dec 2025 |
| 1235 | CLAIR CRATTY | Butler County, PA | Gas Property | Dec 2025 |
| 1236 | CLAIR E. WALTERMIRE | Indiana County, PA | Gas Property | Dec 2025 |
| 1237 | CLAIR FULMER | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 1238 | CLAIR L. FRYE | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1239 | CLAIR SWEITZER | Clarion County, PA | Gas Property | Dec 2025 |
| 1240 | CLAPP TRACT | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 1241 | CLAPPER | Susquehanna County, PA | Gas Property | Dec 2025 |
| 1242 | CLARA | Potter County, PA | Oil & Gas Property | Dec 2024 |
| 1243 | CLARA D SEANOR | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1244 | CLARA E RUGH (FMLY J | Indiana County, PA | Gas Property | Dec 2025 |
| 1245 | CLARA JACQUES | Fayette County, PA | Gas Property | Dec 2016 |
| 1246 | CLARE MARSHALL | Indiana County, PA | Gas Property | Dec 2025 |
| 1247 | CLARENCE | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 1248 | CLARENCE A KEISER | Clearfield County, PA | Gas Property | Dec 2025 |
| 1249 | CLARENCE HOOD A10 | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 1250 | CLARENCE SULLIVAN | Warren County, PA | Oil & Gas Property | Dec 2014 |
| 1251 | CLARENCE V & HELEN M BOYD | Erie County, PA | Gas Property | Dec 2025 |
| 1252 | CLARK | Armstrong County, PA | Gas Property | Dec 2025 |
| 1253 | CLARK | Mercer County, PA | Gas Property | Dec 2025 |
| 1254 | CLARK | Clarion County, PA | Gas Property | Dec 2025 |
| 1255 | CLARK | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 1256 | CLARK | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1257 | CLARK | Indiana County, PA | Gas Property | Dec 2025 |
| 1258 | CLARK & ARMOUR | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1259 | CLARK & ARMOUR US DEPT | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1260 | CLARK 486 | Tioga County, PA | Gas Property | Dec 2025 |
| 1261 | CLARK 65 | Greene County, PA | Oil & Gas Property | Dec 2025 |
| 1262 | CLARK B MCLAUGHLIN | Indiana County, PA | Gas Property | Dec 2025 |
| 1263 | CLARK E RICH DC ETAL | Clearfield County, PA | Gas Property | Dec 2025 |
| 1264 | CLARK KLECKNER | Bradford County, PA | Gas Property | Sep 2025 |
| 1265 | CLARK UNIT | Susquehanna County, PA | Gas Property | Dec 2025 |
| 1266 | CLARK WARRANT 4945 | Elk County, PA | Gas Property | Dec 2025 |
| 1267 | CLARK WHITACRE | Armstrong County, PA | Gas Property | Dec 2025 |
| 1268 | CLARK WT 4945 | Elk County, PA | Gas Property | Dec 2025 |
| 1269 | CLARKE | Bradford County, PA | Gas Property | Dec 2025 |
| 1270 | CLARKE | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 1271 | CLAUDE | Susquehanna County, PA | Gas Property | Dec 2025 |
| 1272 | CLAUDE F HORNE | Clinton County, PA | Gas Property | Dec 2025 |
| 1273 | CLAUDIA | Bradford County, PA | Gas Property | Dec 2025 |
| 1274 | CLAWSON | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1275 | CLAWSON | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 1276 | CLAY PIT | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 1277 | CLAYPOOLE | Armstrong County, PA | Gas Property | Dec 2025 |
| 1278 | CLAYSVILLE SPORTSMANS UNIT | Washington County, PA | Gas Property | Dec 2025 |
| 1279 | CLAYTON E ELKIN ET AL | Indiana County, PA | Gas Property | Dec 2025 |
| 1280 | CLAYTON ELKIN | Indiana County, PA | Gas Property | Dec 2025 |
| 1281 | CLAYTON MILLER | Indiana County, PA | Gas Property | Dec 2025 |
| 1282 | CLAYTON SUNDERLAND | Indiana County, PA | Gas Property | Dec 2025 |
| 1283 | CLDC (02-17 | Tioga County, PA | Gas Property | Dec 2025 |
| 1284 | CLEAR CREEK STATE FOREST | Jefferson County, PA | Gas Property | Dec 2025 |
| 1285 | CLEAR RUN STATE FOREST | Jefferson County, PA | Oil & Gas Property | Dec 2025 |
| 1286 | CLEAR SPRING DAIRY | Bradford County, PA | Gas Property | Dec 2025 |
| 1287 | CLEARFIELD & JEFFERSON | Clearfield County, PA | Gas Property | Dec 2024 |
| 1288 | CLEARFIELD BITUMINOUS COAL CO | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 1289 | CLEARFIELD BITUMINOUS COAL CO | Indiana County, PA | Gas Property | Dec 2025 |
| 1290 | CLEARFIELD/BITUM | Cambria County, PA | Oil & Gas Property | Dec 2025 |
| 1291 | CLEARVIEW HUNTING CLUB A | Lycoming County, PA | Gas Property | Dec 2025 |
| 1292 | CLEGG 722 | Lycoming County, PA | Gas Property | Dec 2025 |
| 1293 | CLEMENTE | Greene County, PA | Gas Property | Dec 2025 |
| 1294 | CLEMMER | Fayette County, PA | Gas Property | Dec 2025 |
| 1295 | CLEPPER | Armstrong County, PA | Gas Property | Dec 2025 |
| 1296 | CLIFFORD & CLETUS TROYER | Erie County, PA | Gas Property | Dec 2025 |
| 1297 | CLIFFORD GLAS | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 1298 | CLIFFORD H HUFFMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 1299 | CLIFFORD MAZE | Warren County, PA | Oil & Gas Property | Dec 2020 |
| 1300 | CLIFFORD P. FLEMING | Indiana County, PA | Gas Property | Dec 2024 |