Wausau Appealing Mass. Judge’s Res Judicata Ruling in Reinsurance Dispute with OneBeacon

BOSTON — Employers Insurance Company of Wausau is appealing a Massachusetts federal judge’s ruling that an arbitration panel, rather than the court, should decide whether OneBeacon American Insurance Co. is precluded from arbitrating a reinsurance coverage dispute with Wausau.

Wausau filed its notice of appeal to the 1st Circuit on July 17 in the U.S. District Court for the District of Massachusetts.

Between 1966 and 1986, certain insurers within the OneBeacon Insurance Group had a treaty reinsurance program known as “Multiple Line Excess Cover” (MLEC Program) under which they entered into annual reinsurance contracts with various reinsurers.

National …