A federal district court dismissed Lexington Insurance Company’s unjust enrichment claim against reinsurer Tokio Marine, holding that the parties’ dispute was governed by their reinsurance contract. Lexington had issued two layers of excess property coverage to the Port Authority, which owned the World Trade Center. Tokio Marine reinsured 100% of the risk. Tenants of the World Trade Center successfully argued to a jury that the September 11, 2001 attacks constituted two separate occurrences and the judgment was affirmed by the Second Circuit. Lexington paid its policy limits for one occurrence and was fully reimbursed by Tokio Marine. After engaging in coverage litigation over whether the Port Authority could recover for a second occurrence, Lexington and the primary carrier, American Home, settled with the Port Authority for a second payment. Lexington sued Tokio Marine after it rejected Lexington’s claim as to the second payment, arguing that the primary carrier should have paid a larger share. The court held that Lexington’s dispute was governed by the parties’ reinsurance agreement and not properly brought as an unjust enrichment claim. The breach of contract claim is still pending. Lexington Ins. Co. v. Tokio Marine & Nichido Fire Ins. Co., Case No. 11-391 (USDC S.D.N.Y. Sept. 7, 2011).