LJUBLJANA (Slovenia), May 13 (SeeNews) – Fitch Ratings said it upgraded Slovenian lender Abanka's Long-Term Issuer Default Rating (IDR) to 'BB' from 'BB-', and raised Nova Kreditna Banka Maribor (NKBM) and Nova Ljubljanska Banka's (NLB) Long-Term IDRs to 'BB-' from 'B+'.