OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has revised the outlook for the issuer credit ratings (ICR) to stable from negative and affirmed the financial strength rating of A+ (Superior) and the issuer credit ratings (ICRs) of “aa” of Tennessee Farmers Mutual Insurance Company (TFMIC) and Tennessee Farmers Assurance Company (TFAC) (both domiciled in Columbia, TN), the two member companies of Tennessee Farmers Insurance Companies (Tennessee Farmers). The outlook for the FSR remains stable. Additi