AM Best has assigned a Financial Strength Rating of A- (Excellent) and a Long-Term Issuer Credit Rating of “a-” (Excellent) to Omaha National Insurance Company (ONIC) (Omaha, NE). The outlook assigned to these Credit Ratings (ratings) is stable. The ratings reflect ONIC’s balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, limited business profile and appropriate enterprise risk management. The very strong balance sheet assessment reflects ONIC’s strongest...