| 1301 | COLE | Tioga County, PA | Gas Property | Sep 2024 |
| 1302 | COLE 236 | Tioga County, PA | Gas Property | Sep 2024 |
| 1303 | COLE CREEK | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 1304 | COLEMAN | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 1305 | COLEMAN EAST | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1306 | COLEMAN NORTH | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1307 | COLLINS | Warren County, PA | Oil & Gas Property | Dec 2022 |
| 1308 | COLLINS | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1309 | COLLINS | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1310 | COLLINS | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1311 | COLLINS | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1312 | COLLINS | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 1313 | COLLINS | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1314 | COLLINS LANDS WARRANT | Forest County, PA | Oil & Gas Property | Dec 2008 |
| 1315 | COLLINS PINE | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 1316 | COLLINS PINE | Elk County, PA | Oil & Gas Property | Sep 2024 |
| 1317 | COLLINS PINE | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1318 | COLLINS PINE | Forest County, PA | Oil & Gas Property | Dec 2012 |
| 1319 | COLLINS PINE 336 | Warren County, PA | Gas Property | Dec 2023 |
| 1320 | COLLINS PINES | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1321 | COLLINS WARRANT 4 | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1322 | COLONIAL | Indiana County, PA | Gas Property | Dec 2023 |
| 1323 | COLORADO | Warren County, PA | Gas Property | Dec 2023 |
| 1324 | COLUMBIA FARM | Venango County, PA | Gas Property | Dec 2023 |
| 1325 | COLUSSY YX | Potter County, PA | Gas Property | Aug 2024 |
| 1326 | COLVIN MOR42 | Washington County, PA | Gas Property | Sep 2024 |
| 1327 | COLWELL | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1328 | COLWELL | Armstrong County, PA | Gas Property | Dec 2023 |
| 1329 | COLWELL A | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1330 | COLWELL WEST | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1331 | COMBS | McKean County, PA | Gas Property | Dec 2023 |
| 1332 | COMMON OF PA TR | Centre County, PA | Gas Property | Dec 2023 |
| 1333 | COMMONWEALTH | Centre County, PA | Oil & Gas Property | Dec 2023 |
| 1334 | COMMONWEALTH | Greene County, PA | Gas Property | Sep 2024 |
| 1335 | COMMONWEALTH | Centre County, PA | Gas Property | Dec 2023 |
| 1336 | COMMONWEALTH OF P | Westmoreland County, PA | Gas Property | Dec 2023 |
| 1337 | COMMONWEALTH OF P | Clearfield County, PA | Gas Property | Dec 2020 |
| 1338 | COMMONWEALTH OF PA SC3 | Elk County, PA | Oil & Gas Property | Dec 2017 |
| 1339 | COMMONWEALTH OF PA TR | Centre County, PA | Gas Property | Dec 2023 |
| 1340 | COMMONWEALTH OF PA TR | Centre County, PA | Gas Property | Dec 2016 |
| 1341 | COMMONWEALTH OF PA TR | Centre County, PA | Gas Property | Dec 2013 |
| 1342 | COMSTOCK | Bradford County, PA | Gas Property | Sep 2024 |
| 1343 | CONELLY C | Forest County, PA | Oil Property | Dec 2014 |
| 1344 | CONEMAUGH LAND CO | Indiana County, PA | Gas Property | Dec 2023 |
| 1345 | CONERTY | Armstrong County, PA | Oil & Gas Property | Dec 2014 |
| 1346 | CONEWANGO DEV | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1347 | CONFER | Fayette County, PA | Gas Property | Dec 2020 |
| 1348 | CONFER P | Centre County, PA | Gas Property | Sep 2024 |
| 1349 | CONFER W | Centre County, PA | Gas Property | Dec 2023 |
| 1350 | CONGELIO | Fayette County, PA | Gas Property | Sep 2024 |
| 1351 | CONIGLIARO | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1352 | CONKLIN | McKean County, PA | Oil & Gas Property | Dec 2009 |
| 1353 | CONKLIN | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1354 | CONKLIN HOLLOW | Clinton County, PA | Gas Property | Dec 2023 |
| 1355 | CONKLIN LEASE C | Warren County, PA | Oil & Gas Property | Dec 2019 |
| 1356 | CONN | Venango County, PA | Oil & Gas Property | Dec 2023 |
| 1357 | CONNELL SUL | Sullivan County, PA | Gas Property | Sep 2024 |
| 1358 | CONNELLSVILLE SPORTSM | Fayette County, PA | Gas Property | Sep 2024 |
| 1359 | CONNOLLY | Tioga County, PA | Gas Property | Sep 2024 |
| 1360 | CONNORS 59 | Greene County, PA | Gas Property | Sep 2024 |
| 1361 | CONRAD BEL | Westmoreland County, PA | Gas Property | Dec 2023 |
| 1362 | CONRAIL | Fayette County, PA | Gas Property | Dec 2023 |
| 1363 | CONRAIL | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 1364 | CONRHEIN | Greene County, PA | Gas Property | Sep 2024 |
| 1365 | CONRHEIN N | Greene County, PA | Gas Property | Sep 2024 |
| 1366 | CONRHEIN NV | Washington County, PA | Gas Property | Sep 2024 |
| 1367 | CONSOL | Greene County, PA | Gas Property | Sep 2024 |
| 1368 | CONSOL | Greene County, PA | Gas Property | Dec 2023 |
| 1369 | CONSOL | Greene County, PA | Gas Property | Sep 2024 |
| 1370 | CONSOL GH | Greene County, PA | Gas Property | Sep 2024 |
| 1371 | CONSOL MOR | Greene County, PA | Gas Property | Sep 2024 |
| 1372 | CONSOL MOR44 | Washington County, PA | Gas Property | Sep 2024 |
| 1373 | CONSOL NV | Washington County, PA | Oil & Gas Property | Sep 2024 |
| 1374 | CONSOL NV57 | Washington County, PA | Gas Property | Sep 2024 |
| 1375 | CONSOL PA | Greene County, PA | Gas Property | Sep 2024 |
| 1376 | CONSOL PA COAL CO | Greene County, PA | Gas Property | Dec 2023 |
| 1377 | CONSOL PENNSYLVANIA CO | Greene County, PA | Gas Property | Sep 2024 |
| 1378 | CONSOL RHL11 | Greene County, PA | Gas Property | Sep 2024 |
| 1379 | CONSOL USX | Greene County, PA | Oil & Gas Property | Sep 2024 |
| 1380 | CONSOL WFN6 | Washington County, PA | Oil & Gas Property | Sep 2024 |
| 1381 | CONSOL/USX | Greene County, PA | Oil & Gas Property | Sep 2024 |
| 1382 | CONSOLIDATED RAIL CORP | Clearfield County, PA | Gas Property | Dec 2018 |
| 1383 | CONSOLIDATED RAIL CORPORATION | Allegheny County, PA | Gas Property | Dec 2023 |
| 1384 | CONSOLIDATION COAL CO | Allegheny County, PA | Oil & Gas Property | Dec 2023 |
| 1385 | CONSOLIDATION COAL CO | Allegheny County, PA | Gas Property | Dec 2023 |
| 1386 | CONSOLIDATION COAL CO | Monongalia County, WV | Gas Property | Dec 2019 |
| 1387 | CONSTANTINE | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 1388 | COOK | Venango County, PA | Oil Property | Dec 1998 |
| 1389 | COOK 05 040 0 | Bradford County, PA | Gas Property | Sep 2024 |
| 1390 | COOK FOREST STATE PARK | Clarion County, PA | Gas Property | Dec 2023 |
| 1391 | COOK N SUS | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1392 | COOK UNIT 1 | Westmoreland County, PA | Gas Property | Sep 2024 |
| 1393 | COOK UNIT COOK 2H | Wyoming County, PA | Gas Property | Sep 2024 |
| 1394 | COOK/SMITH | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 1395 | COOLEY | Bradford County, PA | Gas Property | Sep 2024 |
| 1396 | COOLEY (05-266-0 | Bradford County, PA | Gas Property | Sep 2024 |
| 1397 | COOLEY 05 004 01 P 1H OG WELL | Bradford County, PA | Gas Property | Sep 2024 |
| 1398 | COON HOLLOW 904 | Potter County, PA | Gas Property | Sep 2024 |
| 1399 | COOPER | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1400 | COOPER 400 1H | Tioga County, PA | Gas Property | Sep 2024 |