| 6001 | REEFER | Armstrong County, PA | Gas Property | Dec 2023 |
| 6002 | REEGER | Armstrong County, PA | Gas Property | Dec 2022 |
| 6003 | REEHER | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 6004 | REEL-MACIALEK UNIT MCCONNELL 3H | Wyoming County, PA | Gas Property | Mar 2024 |
| 6005 | REESE | Crawford County, PA | Gas Property | Dec 2023 |
| 6006 | REESE HOLLOW 11 | Potter County, PA | Gas Property | Mar 2024 |
| 6007 | REESEDALE RIDGE | Armstrong County, PA | Gas Property | Mar 2024 |
| 6008 | REESMAN | Armstrong County, PA | Gas Property | Dec 2023 |
| 6009 | REESMAN | Armstrong County, PA | Gas Property | Dec 2023 |
| 6010 | REEVE SUTTON | Bradford County, PA | Gas Property | Mar 2024 |
| 6011 | REFINERS GAS CO | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6012 | REGINA YAN | Cambria County, PA | Gas Property | Dec 2023 |
| 6013 | REGIS W OCHS | Jefferson County, PA | Gas Property | Dec 2023 |
| 6014 | REHO | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6015 | REIBSON EAST UNIT 1H | Sullivan County, PA | Gas Property | Feb 2024 |
| 6016 | REICHARD | Clarion County, PA | Gas Property | Dec 2022 |
| 6017 | REID & HOWLEY HEIRS | Clarion County, PA | Gas Property | Dec 2023 |
| 6018 | REID H | Clarion County, PA | Gas Property | Dec 2023 |
| 6019 | REIGEL LOT 385 | McKean County, PA | Oil Property | Dec 1995 |
| 6020 | REIGHARD | Clearfield County, PA | Gas Property | Dec 2023 |
| 6021 | REILLY | Sullivan County, PA | Gas Property | Feb 2024 |
| 6022 | REILLY J 00 | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6023 | REIMILLER UNIT REIMILLER | Wyoming County, PA | Gas Property | Mar 2024 |
| 6024 | REIMOLD | Mercer County, PA | Gas Property | Dec 2023 |
| 6025 | REINER | Jefferson County, PA | Gas Property | Dec 2023 |
| 6026 | REINFRIED (02-113 | Tioga County, PA | Gas Property | Mar 2024 |
| 6027 | REIST | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6028 | REJISS UNIT | Fayette County, PA | Gas Property | Feb 2024 |
| 6029 | RELL CORP | Jefferson County, PA | Gas Property | Dec 2023 |
| 6030 | RENDIN | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 6031 | RENICK | Butler County, PA | Gas Property | Mar 2024 |
| 6032 | RENO | Venango County, PA | Oil Property | Dec 2006 |
| 6033 | RENOE | Centre County, PA | Gas Property | Dec 2023 |
| 6034 | RENOSKY | Indiana County, PA | Gas Property | Dec 2023 |
| 6035 | RENSHAW | Armstrong County, PA | Gas Property | Mar 2024 |
| 6036 | RENSMA | Forest County, PA | Oil Property | Dec 2021 |
| 6037 | RENSMA | Warren County, PA | Oil & Gas Property | Dec 2022 |
| 6038 | RENSMA | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6039 | RENSMA | Crawford County, PA | Gas Property | Dec 2021 |
| 6040 | RENSMA | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6041 | RENSMA STEPHENS | Warren County, PA | Oil & Gas Property | Dec 2021 |
| 6042 | RENSMA STOUT RS | Venango County, PA | Oil Property | Dec 2013 |
| 6043 | REPIK UNIT | Indiana County, PA | Gas Property | Dec 2023 |
| 6044 | REPINE 07 022 0 | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6045 | RESOURCE RECOVERY | Centre County, PA | Gas Property | Mar 2024 |
| 6046 | REUBEN BUGHMAN | Jefferson County, PA | Gas Property | Dec 2023 |
| 6047 | REXFORD | Bradford County, PA | Gas Property | Mar 2022 |
| 6048 | REYNEN J | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6049 | REYNLOW PARK | Jefferson County, PA | Gas Property | Dec 2023 |
| 6050 | REYNOLDS | Lycoming County, PA | Gas Property | Feb 2024 |
| 6051 | REYNOLDS R | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6052 | REYNOLDS RX | Potter County, PA | Oil & Gas Property | Dec 2022 |
| 6053 | REYNOLDS UNIT | Wyoming County, PA | Gas Property | Mar 2024 |
| 6054 | REYNOLDS UNIT REIMILLER 1 REYNOLDS 1H | Wyoming County, PA | Gas Property | Mar 2024 |
| 6055 | RGB BRA | Bradford County, PA | Gas Property | Feb 2024 |
| 6056 | RHEA-LAWER | Indiana County, PA | Gas Property | Dec 2023 |
| 6057 | RHL22 | Greene County, PA | Gas Property | Mar 2024 |
| 6058 | RHL23 | Greene County, PA | Oil & Gas Property | Mar 2024 |
| 6059 | RHL4 | Greene County, PA | Oil & Gas Property | Mar 2024 |
| 6060 | RHODA GRACE BEERCHECK | Jefferson County, PA | Oil & Gas Property | Dec 2023 |
| 6061 | RHODES | Lycoming County, PA | Gas Property | Mar 2024 |
| 6062 | RHONE GAMBLE | Lycoming County, PA | Gas Property | Mar 2024 |
| 6063 | RHUEL STIFFLER | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 6064 | RICCI | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6065 | RICE | Venango County, PA | Oil & Gas Property | Dec 2022 |
| 6066 | RICE UNIT | Greene County, PA | Gas Property | May 2019 |
| 6067 | RICH | Bradford County, PA | Gas Property | Feb 2024 |
| 6068 | RICH FARMS | Fayette County, PA | Oil & Gas Property | Mar 2024 |
| 6069 | RICH HILL COAL MINING CO | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 6070 | RICHARD | Venango County, PA | Gas Property | Dec 2023 |
| 6071 | RICHARD | Erie County, PA | Gas Property | Dec 2023 |
| 6072 | RICHARD | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6073 | RICHARD A SHIDEMANTLE | Crawford County, PA | Oil & Gas Property | Dec 2023 |
| 6074 | RICHARD APPLEBEE | Erie County, PA | Gas Property | Dec 2023 |
| 6075 | RICHARD E HENTON | Crawford County, PA | Gas Property | Dec 2023 |
| 6076 | RICHARD HUESSENER | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 6077 | RICHARD L B | Indiana County, PA | Gas Property | Dec 2023 |
| 6078 | RICHARD L STEWART | Clarion County, PA | Gas Property | Dec 2023 |
| 6079 | RICHARD M KOONTZ | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6080 | RICHARD N. LOMMOCK | Indiana County, PA | Gas Property | Dec 2023 |
| 6081 | RICHARD NULPH | Indiana County, PA | Gas Property | Dec 2023 |
| 6082 | RICHARD P RIN | Indiana County, PA | Gas Property | Dec 2023 |
| 6083 | RICHARD R WALKER ET AL | Butler County, PA | Oil & Gas Property | Dec 2019 |
| 6084 | RICHARD SUS | Susquehanna County, PA | Gas Property | Feb 2024 |
| 6085 | RICHARDSON | Mercer County, PA | Gas Property | Dec 2023 |
| 6086 | RICHARDSON | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6087 | RICHEY | Armstrong County, PA | Gas Property | Dec 2023 |
| 6088 | RICHLAND SPORTSM | Butler County, PA | Gas Property | Dec 2023 |
| 6089 | RICKETTS | Clearfield County, PA | Gas Property | Dec 2023 |
| 6090 | RIDDLE | Crawford County, PA | Gas Property | Dec 2023 |
| 6091 | RIDENOUR | Sullivan County, PA | Gas Property | Feb 2024 |
| 6092 | RIDER | Fayette County, PA | Gas Property | Dec 2023 |
| 6093 | RIDGE ROAD | Greene County, PA | Gas Property | Feb 2024 |
| 6094 | RIDGEVIEW | Armstrong County, PA | Gas Property | Dec 2023 |
| 6095 | RIDGWAY LIGHT & HEAT | Elk County, PA | Gas Property | Dec 2023 |
| 6096 | RIDGWAY LIGHT & HEAT | Elk County, PA | Gas Property | Dec 2023 |
| 6097 | RIFFER | Armstrong County, PA | Gas Property | Dec 2022 |
| 6098 | RIGGS | Greene County, PA | Oil & Gas Property | Dec 2023 |
| 6099 | RIGHI | Armstrong County, PA | Gas Property | Dec 2023 |
| 6100 | RINGGOLD | Armstrong County, PA | Gas Property | Dec 2023 |