Standard&Poor's Ratings Services confirmed its 'A-1' rating on Port of Oakland, Calif.'s series F commercial paper notes, due to the bank facility being extended to June 30, 2016. The rating is based on the short-term rating on the letter of credit provider, JPMorgan Chase Bank N.A. Criteria: Methodology And Assumptions: Approach To Evaluating Letter Of Credit-Supported Debt, July 6, 2009