( June 9, 2026, 8:16 AM EDT) -- XE "Environmental Contamination" NEW ORLEANS — The Fifth Circuit U.S. Court of Appeals vacated and remanded a district court’s denial of two motions for leave to file an amended complaint filed by the successor company of an insured in a suit seeking coverage for an underlying oil contamination lawsuit because the lower court failed to “articulate its reasoning” as to why the addition of other plaintiffs would be futile....