Hull v. Sun Refining and Marketing Co. , 789 P.2d 1272 ( 1990 )
Untitled Texas Attorney General Opinion ( 1949 )
Gex v. Texas Company , 337 S.W.2d 820 ( 1960 )
robert-j-johnston-william-g-webb-c-o-ted-collins-jr-herbert-e ( 1992 )