I think that's state tax alone...the numbers are old. This is a chart offered as part of an investigation by McKenna's office:
http://www.atg.wa.gov/uploadedFiles/Another/Safeguarding_Consumers/Antitrust/Unfair_Trade_Practices/Gas_Prices/Illustration%2011.pdf
18 cents federal, 36 cents state...and I think we've had an increase since then.