Opinion summary
Etalia.ai summary of the majority opinion
The case involved a dispute between United Gas Improvement Co. and Sunray DX Oil Co. concerning the interpretation of contractual obligations under a natural gas supply agreement. The central issue was whether United Gas could alter its pricing structure based on changes in regulatory policies by the Federal Power Commission, which affected how rates were calculated for interstate natural gas sales. The Supreme Court had to determine if these regulatory changes justified an adjustment in contract terms or if they constituted grounds for renegotiation of existing agreements without breaching them.
Opinion written by Justice Harlan(2)
Decided 6 May 1968 · Official report