Marcellus shale: why Pennsylvania gas stays cheap
Pennsylvania is the second-largest natural gas-producing state in the US, with Marcellus shale wells producing over 7 trillion cubic feet annually. This in-state production — combined with well-developed gathering and distribution infrastructure — keeps residential gas rates below the Mid-Atlantic and national averages. The $1.67/therm rate (EIA March 2026) reflects both low commodity cost (the gas itself) and moderate distribution charges (the pipeline network to your home). Most Pennsylvania gas utilities have decoupled their revenue from gas volume (Act 13/Act 58 rate structures), meaning the utility earns a fixed return regardless of how much gas you burn — this can dampen the utility's incentive to promote heat pumps as an alternative. For consumers, cheap gas means a gas furnace is the cheapest way to heat a Pennsylvania home by operating cost. The climate of cheap gas is stable but not permanent: as more gas is exported as LNG from the East Coast, Northeast gas basis prices could diverge from Henry Hub, slowly raising the residential rate.