Mealey's (November 24, 2015, 10:19 AM EST) -- AUSTIN, Texas — The Texas Supreme Court on Nov. 20 refused to review an appeals court’s ruling that an excess insurer owes coverage for environmental contamination cleanup costs because the excess insurer’s attachment point of $8 million was reached after the insured settled with its other insurers (Plantation Pipe Line Co. v. Highlands Insurance Co., in receivership, No. 14-0789, Texas Sup.)....