Top 20 Marcellus Drillers in Southwest Pennsylvania
Allegheny County | Armstrong County | Atlas Energy | Beaver County | BLX-Redmill Gas | Butler County | Chesapeake Energy | Chevron | Clarion County | CONSOL Energy | Energy Companies | Energy Corporation of America | EQT Corp | Fayette County | Greene County (PA) | Hilcorp Energy | Indiana County | Lawrence County | MDS Energy | PennEnergy Resources | Pennsylvania | Range Resources Corp | Rex Energy | Rice Energy | Snyder Brothers | Southwestern Energy | Washington County | Westmoreland County | WPX Energy | XTO