A.M. Best has affirmed the Financial Strength Rating (FSR) of A+ (Superior) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “aa-” of Old 91Թ Insurance Company (Greensburg, PA) and Old 91Թ Lloyds of Texas (Dallas, TX) (collectively referred to as Old 91Թ Insurance 91Թ [ORINSCO]); BITCO General Insurance Corporation and BITCO National Insurance Company (both domiciled in Rock Island, IL) (collectively referred to as BITCO Insurance 91Թ); and Great West Casualty Company (Great West) (South Sioux City, NE).