In May, we reported that a New York court had found that a policy containing both an exclusion for water that backs up through sewers and drains and a coverage grant for accidental discharge or overflow from a plumbing system was neither internally inconsistent nor ambiguous in nature. The post can be found here. On June 17th, Oklahoma’s highest court agreed, albeit without citing the New York case, and it held that the two provisions were fully reconcilable and enforceable. The case in question is Porter v. Oklahoma Farm Bureau Mut. Ins. Co., 330 P.3rd 511, 2014 Okla. LEXIS 72 (Okla., June 17, 2014). Justin and Brandy Porter owned a home that was damaged when raw sewage entered the premises…