pan-american-petroleum-corporation-northeast-blanco-development-corp , 403 F.2d 351 ( 1968 )
Hunter v. Hughes , 77 Okla. 81 ( 1920 )
West v. Aetna Life Insurance Company , 536 P.2d 393 ( 1975 )
Allen v. Farmers Union Co-Operative Royalty Co. , 538 P.2d 204 ( 1975 )