| 1001 | CARL E MCCALL | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 1002 | CARL ECKLUND | Clearfield County, PA | Gas Property | Dec 2024 |
| 1003 | CARL FREDERICK | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1004 | CARL H & ELEANOR FITZSIMMONS | Westmoreland County, PA | Gas Property | Dec 2024 |
| 1005 | CARL L C | Armstrong County, PA | Gas Property | Dec 2024 |
| 1006 | CARL M HAGGERTY | Indiana County, PA | Gas Property | Dec 2024 |
| 1007 | CARL PATCHIN | Cambria County, PA | Gas Property | Dec 2024 |
| 1008 | CARL R EARHART | Westmoreland County, PA | Gas Property | Dec 2024 |
| 1009 | CARL R PROPER | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 1010 | CARL W ELLINGER ETUX | Clearfield County, PA | Gas Property | Dec 2024 |
| 1011 | CARL W SNYDER | Armstrong County, PA | Gas Property | Dec 2024 |
| 1012 | CARL WALKER WAYNE D BRAUGHLER ET UX | Indiana County, PA | Gas Property | Dec 2024 |
| 1013 | CARLIN | Venango County, PA | Oil Property | Dec 1999 |
| 1014 | CARLIN | Centre County, PA | Gas Property | Dec 2024 |
| 1015 | CARLISLE RUTH UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 1016 | CARLSON | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1017 | CARLSON | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1018 | CARLSON | Warren County, PA | Oil & Gas Property | Dec 2011 |
| 1019 | CARMALT BURNS | Jefferson County, PA | Gas Property | Dec 2024 |
| 1020 | CARNEGIE NATURAL GAS CO | Fayette County, PA | Gas Property | Dec 2024 |
| 1021 | CARNS DONALD | Washington County, PA | Gas Property | Oct 2025 |
| 1022 | CARNS DONALD UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 1023 | CARNS UNIT | Washington County, PA | Oil & Gas Property | Dec 2013 |
| 1024 | CAROFF | Indiana County, PA | Gas Property | Dec 2024 |
| 1025 | CAROLYN & GEORGE MORRIS | Greene County, PA | Gas Property | Dec 2020 |
| 1026 | CAROLYN KLINGENSMITH | Westmoreland County, PA | Gas Property | Dec 2024 |
| 1027 | CAROLYN PARK | Indiana County, PA | Gas Property | Dec 2024 |
| 1028 | CARPENETTI R | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1029 | CARPENTER | Fayette County, PA | Gas Property | Dec 2024 |
| 1030 | CARPENTER | Greene County, PA | Gas Property | Oct 2025 |
| 1031 | CARPENTER | Crawford County, PA | Gas Property | Dec 2024 |
| 1032 | CARPENTER 03 023 0 | Bradford County, PA | Gas Property | Oct 2025 |
| 1033 | CARPENTERTOWN COAL & CO | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 1034 | CARR | Bradford County, PA | Gas Property | Oct 2025 |
| 1035 | CARR | Westmoreland County, PA | Gas Property | Dec 2024 |
| 1036 | CARR S BRA 2H | Bradford County, PA | Gas Property | Oct 2025 |
| 1037 | CARRAR | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1038 | CARRINGTON | Warren County, PA | Oil & Gas Property | Dec 2014 |
| 1039 | CARROLL | Clarion County, PA | Oil Property | Dec 1992 |
| 1040 | CARROLL | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1041 | CARROLLS NURSERY | Crawford County, PA | Gas Property | Dec 2024 |
| 1042 | CARSON | Fayette County, PA | Gas Property | Dec 2024 |
| 1043 | CARSON | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1044 | CARSON | Washington County, PA | Oil Property | Dec 2001 |
| 1045 | CARSON UNIT | Butler County, PA | Oil & Gas Property | Oct 2025 |
| 1046 | CARTER | Venango County, PA | Gas Property | Oct 2025 |
| 1047 | CARTER | Greene County, PA | Oil & Gas Property | Oct 2025 |
| 1048 | CARTER | Washington County, PA | Oil & Gas Property | Jun 2012 |
| 1049 | CARTY | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1050 | CARTY WISEMAN 1 | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1051 | CASTLE | Bradford County, PA | Gas Property | Oct 2025 |
| 1052 | CASTLE 01 047 0 | Bradford County, PA | Gas Property | Oct 2025 |
| 1053 | CASTLE BROOK | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 1054 | CASTRO ET AL UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 1055 | CASTROGIOVANNI A | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1056 | CATALYST 5211 | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 1057 | CATHALEENE | Clearfield County, PA | Gas Property | Dec 2024 |
| 1058 | CATHCART NYAL M & LEWIS | Clearfield County, PA | Gas Property | Dec 2024 |
| 1059 | CATHERINE MOLNAR | Fayette County, PA | Gas Property | Dec 2020 |
| 1060 | CAYLOR | Jefferson County, PA | Gas Property | Dec 2024 |
| 1061 | CAYLOR | Jefferson County, PA | Gas Property | Dec 2024 |
| 1062 | CAYMAN | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 1063 | CBC-MCKENDRICK | Indiana County, PA | Gas Property | Dec 2024 |
| 1064 | CBC/RHODES | Indiana County, PA | Gas Property | Dec 2024 |
| 1065 | CD SNYDER | Jefferson County, PA | Gas Property | Dec 2023 |
| 1066 | CD84 2 JK | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 1067 | CDJ BRA | Bradford County, PA | Gas Property | Oct 2025 |
| 1068 | CEASE | Bradford County, PA | Gas Property | Oct 2025 |
| 1069 | CEASER UNIT | Butler County, PA | Oil & Gas Property | Oct 2025 |
| 1070 | CECILE C VAN CISE | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1071 | CEMETERY | Warren County, PA | Oil Property | Dec 2024 |
| 1072 | CENKNER | Westmoreland County, PA | Gas Property | Dec 2024 |
| 1073 | CENTER TOWNSHIP | Indiana County, PA | Gas Property | Dec 2024 |
| 1074 | CENTRAL PA LUMBER CO | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1075 | CERCA | Bradford County, PA | Gas Property | Oct 2025 |
| 1076 | CERNUSKA | Greene County, PA | Gas Property | Oct 2025 |
| 1077 | CFR/USX | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 1078 | CHAAPEL HOLLOW UNIT | Lycoming County, PA | Gas Property | Oct 2025 |
| 1079 | CHAGRIN | Clearfield County, PA | Gas Property | Dec 2024 |
| 1080 | CHAGRIN | Clearfield County, PA | Oil & Gas Property | Dec 2024 |
| 1081 | CHAGRIN LAND | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 1082 | CHAIKCIC | Fayette County, PA | Gas Property | Dec 2024 |
| 1083 | CHALFANT | Washington County, PA | Gas Property | Dec 2024 |
| 1084 | CHAMBERLIN L | Jefferson County, PA | Gas Property | Dec 2008 |
| 1085 | CHAMBERLIN MEYER | Bradford County, PA | Gas Property | Oct 2025 |
| 1086 | CHAMBERS | Washington County, PA | Gas Property | Oct 2025 |
| 1087 | CHAMBERS O | Susquehanna County, PA | Gas Property | Oct 2025 |
| 1088 | CHAMPDALE | Bradford County, PA | Gas Property | Oct 2025 |
| 1089 | CHAMPLIN | Sullivan County, PA | Gas Property | Oct 2025 |
| 1090 | CHAMPLUVIER | Bradford County, PA | Gas Property | Oct 2025 |
| 1091 | CHANCELLOR 62 | Bradford County, PA | Gas Property | Oct 2025 |
| 1092 | CHAPMAN | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 1093 | CHAPMAN 237 | Tioga County, PA | Gas Property | Oct 2025 |
| 1094 | CHAPMAN BOHLIN A | Lycoming County, PA | Gas Property | Oct 2025 |
| 1095 | CHAPPEL FORK | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 1096 | CHAPPEL UNIT | Washington County, PA | Oil & Gas Property | Oct 2025 |
| 1097 | CHAPPELL | Tioga County, PA | Gas Property | May 2025 |
| 1098 | CHARLEROI MT | Elk County, PA | Oil & Gas Property | Dec 2023 |
| 1099 | CHARLEROI S | Washington County, PA | Gas Property | Dec 2024 |
| 1100 | CHARLES | Jefferson County, PA | Gas Property | Dec 2024 |