556 P.2d 431 DAVID RUSH, Appellee, v. KING OIL COMPANY, and T. WARREN HALL, Appellants. No. 47,948Supreme Court of Kansas Opinion filed November 6, 1976. SYLLABUS BY THE COURT 1. OIL AND GAS — Implied Covenant to Develop — Duty of Lessee. Under the implied covenant of reasonable development when oil in paying quantities becomes […]