OLDWICK, N.J., June 9, 2011 /PRNewswire/ -- A.M. Best Co. has affirmed the financial strength rating (FSR) of A++ (Superior) and issuer credit ratings (ICR) of "aa+" of Auto-Owners Insurance Group (AOIG) and its members.

LANSING, Mich., May 26 /PRNewswire/ -- Lansing based Auto-Owners Insurance Company celebrates another A++ Superior rating by nationally recognized credit rating agency A.M. Best this past week. Auto-Owners has earned A.M. Best's highest rating every year since 1972. "The A.M.

A.M. Best Co. has downgraded the financial strength ratings (FSR) to B+ (Good) from B++ (Good) and issuer credit ratings (ICR) to "bbb-" from "bbb+" of Health Net of California, Inc. and Health Net Life Insurance Company. Concurrently, A.M.

The severe dislocation in the capital markets, fueled most recently by the bankruptcy filing of Lehman Brothers Holdings Inc. and liquidity concerns at high-profile financial institutions, such as American International Group, Inc. (New York, NY), has prompted A.M. Best Co.

The potential size of the worksite market for life/health insurers is projected to be $28 billion, but current market penetration is estimated at less than one-third.