| 6201 | ROCHESTER & PITT | Indiana County, PA | Gas Property | Dec 2023 |
| 6202 | ROCHESTER & PITTS | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 6203 | ROCHESTER & PITTSBURG | Armstrong County, PA | Gas Property | Dec 2023 |
| 6204 | ROCHESTER & PITTSBURGH CO | Indiana County, PA | Gas Property | Dec 2023 |
| 6205 | ROCHESTER & PITTSBURGH COAL | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 6206 | ROCHESTER & PITTSBURGH COAL CO | Armstrong County, PA | Oil & Gas Property | Dec 2023 |
| 6207 | ROCHESTER & PITTSBURGH COAL CO | Indiana County, PA | Gas Property | Dec 2023 |
| 6208 | ROCHESTER & PITTSUBRGH COAL CO | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 6209 | ROCK FURNA | Armstrong County, PA | Gas Property | Dec 2023 |
| 6210 | ROCK RUN | McKean County, PA | Oil Property | Dec 2023 |
| 6211 | ROCKS | Bradford County, PA | Gas Property | Oct 2023 |
| 6212 | ROCKWELL | Crawford County, PA | Oil & Gas Property | Dec 2023 |
| 6213 | RODE | Greene County, PA | Gas Property | Dec 2023 |
| 6214 | RODNEY T MCDIVITT ET UX | Jefferson County, PA | Gas Property | Dec 2023 |
| 6215 | RODOCOY | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 6216 | ROEBER | Bradford County, PA | Gas Property | Feb 2024 |
| 6217 | ROEDER | Venango County, PA | Oil Property | Dec 2023 |
| 6218 | ROEHRIG SMITH | Bradford County, PA | Gas Property | Mar 2024 |
| 6219 | ROELL LEASE ROELL | Warren County, PA | Oil & Gas Property | Dec 2022 |
| 6220 | ROGER | Susquehanna County, PA | Gas Property | Feb 2024 |
| 6221 | ROGER H CLAYPOOLE ETUX | Armstrong County, PA | Gas Property | Mar 2024 |
| 6222 | ROGER JOHNSTON | Jefferson County, PA | Gas Property | Dec 2023 |
| 6223 | ROGER PARRY | Greene County, PA | Gas Property | Feb 2024 |
| 6224 | ROGERS 05 235 0 | Bradford County, PA | Gas Property | Mar 2024 |
| 6225 | ROGERS UNIT | Susquehanna County, PA | Gas Property | Feb 2024 |
| 6226 | ROHANNA | Greene County, PA | Gas Property | Feb 2024 |
| 6227 | ROLAND | Bradford County, PA | Gas Property | Feb 2024 |
| 6228 | ROLAND C BLAKESLEE | Crawford County, PA | Gas Property | Dec 2023 |
| 6229 | ROLAND G TIRACORDA | Clearfield County, PA | Gas Property | Dec 2023 |
| 6230 | ROLLING ACRES | Beaver County, PA | Gas Property | Mar 2024 |
| 6231 | ROLLING HILLS | Armstrong County, PA | Gas Property | Mar 2024 |
| 6232 | ROLLINSON | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 6233 | ROMAN | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6234 | ROMANETTI UNIT | Washington County, PA | Oil & Gas Property | Jun 2012 |
| 6235 | ROMEIKA J | Susquehanna County, PA | Gas Property | Mar 2024 |
| 6236 | ROMEO-WT 4911 26 | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 6237 | RONALD | Erie County, PA | Oil & Gas Property | Dec 2023 |
| 6238 | RONALD | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6239 | RONALD CHERNISKY | Indiana County, PA | Gas Property | Dec 2023 |
| 6240 | RONALD HEMMINGER | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6241 | RONALD J GAFNER G | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6242 | RONALD MEABON | Erie County, PA | Gas Property | Dec 2023 |
| 6243 | RONALD R BUTERBAUGH | Clearfield County, PA | Gas Property | Dec 2023 |
| 6244 | RONALD RUMMEL ETAL | Indiana County, PA | Gas Property | Dec 2023 |
| 6245 | RONALD SAMUEL | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 6246 | RONALD T KUNSELMAN | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 6247 | RONMARY | Sullivan County, PA | Gas Property | Jan 2021 |
| 6248 | ROOT | Tioga County, PA | Gas Property | Feb 2024 |
| 6249 | RORABAUGH | Clearfield County, PA | Gas Property | Dec 2023 |
| 6250 | RORABAUGH | Clearfield County, PA | Gas Property | Dec 2023 |
| 6251 | ROSA | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 6252 | ROSA UNIT | Fayette County, PA | Gas Property | Feb 2024 |
| 6253 | ROSALIE | Wyoming County, PA | Gas Property | Jan 2024 |
| 6254 | ROSE | Bradford County, PA | Gas Property | Feb 2024 |
| 6255 | ROSE RUGH | Indiana County, PA | Gas Property | Dec 2023 |
| 6256 | ROSE VALLEY 56H 51728 | Lycoming County, PA | Gas Property | Mar 2024 |
| 6257 | ROSE VALLEY GAMBLE | Lycoming County, PA | Gas Property | Mar 2024 |
| 6258 | ROSIEMAR | Susquehanna County, PA | Gas Property | Feb 2024 |
| 6259 | ROSS | Armstrong County, PA | Gas Property | Dec 2023 |
| 6260 | ROSS ROBERTS | Bradford County, PA | Gas Property | Mar 2024 |
| 6261 | ROSS RUN RANCH RRR | Forest County, PA | Oil & Gas Property | Dec 2014 |
| 6262 | ROSS SEANOR | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 6263 | ROSSI BRA | Bradford County, PA | Gas Property | Nov 2023 |
| 6264 | ROSTOSKY 59 | Allegheny County, PA | Gas Property | Feb 2024 |
| 6265 | ROSUL UNIT | Fayette County, PA | Gas Property | Feb 2024 |
| 6266 | ROSWELL MILLER | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6267 | ROTH | Westmoreland County, PA | Gas Property | Dec 2023 |
| 6268 | ROUGH HOLLOW 593 | Greene County, PA | Gas Property | Feb 2024 |
| 6269 | ROUGH RUN MFG CO 1118 | Butler County, PA | Gas Property | Dec 2023 |
| 6270 | ROUND TOP ENTERPRISES | Jefferson County, PA | Gas Property | Dec 2023 |
| 6271 | ROUNDTOP | Sullivan County, PA | Gas Property | Sep 2021 |
| 6272 | ROUNDWOOD WYO | Wyoming County, PA | Gas Property | Feb 2024 |
| 6273 | ROUPP UNIT | Lycoming County, PA | Gas Property | Feb 2024 |
| 6274 | ROUSE | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6275 | ROWE | Bradford County, PA | Gas Property | Feb 2024 |
| 6276 | ROWLAND CAROL 10067 | Washington County, PA | Gas Property | Feb 2024 |
| 6277 | ROY & ARCHER | Elk County, PA | Oil & Gas Property | Dec 2019 |
| 6278 | ROY 03 0 | Bradford County, PA | Gas Property | Mar 2024 |
| 6279 | ROY A ORR | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 6280 | ROY D LEAMER 1 | Cambria County, PA | Oil & Gas Property | Dec 2023 |
| 6281 | ROY H LUTZ | Clearfield County, PA | Gas Property | Dec 2023 |
| 6282 | ROY MUSGRAVE | Beaver County, PA | Oil & Gas Property | Dec 2023 |
| 6283 | ROY N CLAWSON FMLY HOMER BOWMAN ETUX | Indiana County, PA | Gas Property | Dec 2023 |
| 6284 | ROY RAMALE | Indiana County, PA | Gas Property | Dec 2023 |
| 6285 | ROYAL HUEY 59056 | Clarion County, PA | Gas Property | Mar 2024 |
| 6286 | ROYAL OIL | Indiana County, PA | Gas Property | Dec 2023 |
| 6287 | ROYAL OIL & GAS | Indiana County, PA | Gas Property | Dec 2023 |
| 6288 | ROYAL OIL & GAS 590 | Indiana County, PA | Gas Property | Mar 2024 |
| 6289 | ROYAL OIL & GAS CORP | Clearfield County, PA | Gas Property | Dec 2023 |
| 6290 | ROYAL OL & GAS CORP | Clearfield County, PA | Gas Property | Dec 2023 |
| 6291 | ROYSTONE | Warren County, PA | Oil & Gas Property | Dec 2010 |
| 6292 | ROZAK | Fayette County, PA | Gas Property | Dec 2023 |
| 6293 | RR ADAMS | Jefferson County, PA | Gas Property | Dec 2023 |
| 6294 | RUARK EAST RUARK EAST 1 1H | Wyoming County, PA | Gas Property | Mar 2024 |
| 6295 | RUARK UNIT P&G 5 RUARK 4H | Wyoming County, PA | Gas Property | Mar 2024 |
| 6296 | RUCCIO | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 6297 | RUDOLPH | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6298 | RUDOLPH H GASTON | Indiana County, PA | Gas Property | Dec 2023 |
| 6299 | RUDOLPH L KUHNER | Indiana County, PA | Gas Property | Dec 2023 |
| 6300 | RUDY | Washington County, PA | Gas Property | Dec 2023 |