OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has placed under review with positive implications the financial strength rating of A (Excellent) and the issuer credit ratings (ICR) of “a” of the insurance subsidiaries of StanCorp Financial Group, Inc. (StanCorp) [NYSE:SFG]: Standard Insurance Company and The Standard Life Insurance Company of New York. Collectively, the group is referred to as Standard Insurance Group (Portland, OR). A.M. Best also has placed under review with positive implications