State Automobile Mutual Completes Acquisition of Rockhill Insurance Group

Business Editors/Insurance Writers

COLUMBUS, Ohio--(BUSINESS WIRE)--February 10, 2009--State Automobile Mutual Insurance Company today announced the completion of its purchase of Rockhill Insurance Group of Kansas City, Mo.

Rockhill writes approximately $120 million in specialty property and casualty direct written premium through four insurance company subsidiaries: Rockhill Insurance Company, Plaza Insurance Company, American Compensation Insurance Company, and Bloomington Compensation Insurance Company. Key business segments include commercial property, general liability for residential construction, commercial umbrella, surety, program, professional and environmental; RTW, a monoline workers’ compensation company; and Absentia, a third party administrator providing workers’ compensation case and claim management services. Rockhill writes business on a non-admitted basis in 49 states and the District of Columbia, and is licensed on an admitted basis in 42 states and the District of Columbia.

State Auto will retain Rockhill’s management and associates, operating the company as a stand alone subsidiary of State Automobile Mutual. State Automobile Mutual does not plan to pool Rockhill’s operations with those of State Auto’s for the foreseeable future.

State Automobile Mutual Insurance Company is one of only 13 companies to be rated A+ (Superior) by the A.M. Best Company every year since 1954. Additional information can be found online at StateAuto.com.