Champlin Oil & Refining Company, Petitioners v. M. B. Chastain, Respondents

Summary

The Texas Supreme Court reversed the trial court and Court of Civil Appeals judgments and remanded for further proceedings, holding that there was no mutual mistake warranting reformation of the contract and that Champlin Oil & Refining is equitably estopped from recovery because Chastain’s silence, given actual or constructive knowledge, barred his claim. Separate dissenting and concurring opinions contest the estoppel finding and the mutual‑mistake analysis.