OREANDA-NEWS. A.M. Best has assigned the Financial Strength Rating (FSR) of A (Excellent) and the Long-Term Issuer Credit Rating (Long-Term ICR) of “a+” to Sterling Insurance Cooperative, Inc. (SI Coop) (Cobleskill, NY). The outlook assigned to these Credit Ratings (ratings) is stable. Additionally, A.M. Best has affirmed the FSR of A (Excellent) and the Long-Term ICR of “a+” of Sterling Insurance Company (Sterling) (Cobleskill, NY). The outlook of these ratings is stable. Sterling and SI Coop are collectively referred to as Sterling Insurance Group.