Railroad Commission of Texas, et al. v. Texas Citizens for a Safe Future and Clean Water, et al., 336 S.W.3d 619 (Tex. Sup. Ct. 2011)

(state water law requires plaintiff to weigh "public interest" in process of permitting proposed oil and gas waste injection wells; plaintiff did not consider traffic-safety factors in public interest inquiry and lower court erred in not deferring to plaintiff's interpretation of "public interest"; plaintiff's ruling interpretation entitled to deference).