—Wisconsin is highest at 32.1 cents/gallon—
You need to include the percentages described in the comments. Gasbuddy includes them in the list, California’s taxes taken together is ~45¢.
http://www.minnesotagasprices.com/tax_info.aspx
I stand corrected. NY is 43.9 cents/gallon.
Wow. Sure glad we had 12 years of Republican administration