Keystone Bituminous Coal Assn. v. DeBenedictis

1987-03-09

Headline: Pennsylvania law limiting underground coal mining to prevent subsidence is upheld, letting the State enforce a 50% coal‑leave rule and repair or payment requirements, restricting coal companies’ ability to mine beneath protected structures.

Holding:

Real World Impact:

Allows Pennsylvania to enforce 50% coal‑leave rule beneath protected structures.
Requires mine operators to repair damage or post funds, or risk permit revocation.
Leaves open as‑applied challenges, so individual mines may still raise compensation claims.

Topics: coal mining rules, land subsidence, property compensation, state environmental law, contract disputes

Summary

Background

The challengers are an association of coal companies and four coal corporations that mine bituminous coal in western Pennsylvania. The state agency is the Pennsylvania Department of Environmental Resources (DER). In 1966 Pennsylvania enacted the Bituminous Mine Subsidence and Land Conservation Act to limit underground mining near certain surface features. Section 4 bars mining that causes subsidence damage under public buildings, dwellings, and cemeteries in place that date; DER enforces a formula that generally keeps 50% of the coal beneath protected structures. Section 6 allows DER to require repair, payment, or security and to revoke permits if operators fail to comply. The coal companies sued, claiming the rules take private property without compensation and improperly impair their contractual waivers.

Reasoning

The Court’s central question was whether the statute, on its face, effects a taking or unlawfully impairs private contracts. The Court distinguished the 1922 Pennsylvania Coal decision because the Subsidence Act states and serves significant public purposes and the record did not show the law denied the companies an economically viable use of their coal. The Court noted the facial posture of the challenge: petitioners offered no proof that any particular mine was unprofitable and the record showed the Act required leaving only a small percentage of coal in the ground overall. The Court treated the support interest as part of a larger bundle of property rights and deferred to the legislature’s judgment that deterrence and repair requirements were reasonable.

Real world impact

By affirming the facial challenge, the Court allows Pennsylvania to enforce the 50% leave rule and the repair/payment and permit‑revocation provisions as written. Coal companies can still bring mine‑specific, as‑applied claims in lower courts if they later show a taking or other injury. In the near term, owners of homes, public buildings, cemeteries, and local governments gain protections against subsidence and mine operators bear more financial responsibility.