Standard&Poor's Ratings Services confirmed its 'A-1+' rating on Port of Oakland, Calif.'s series A, B, and C tax-exempt commercial paper notes, due to the bank facility being extended to June 30, 2016. The long-term and short-term components of the rating are based on the rating on the letter of credit provider, Wells Fargo Bank N.A. Criteria: Methodology And Assumptions: Approach To Evaluating Letter Of Credit-Supported Debt, July 6, 2009