Bloomberg OBG for US rack and Canadian rack prior to 1999. Calculations for spreads represent the major market minus the comparison city. Points on graphs therefore show the major market as higher or lower than the comparison city. Regular Unleaded Margins Data represents monthly averages of tax content, downstream margins and rack contents of the regular unleaded pump price over a rolling two-year period. Data is driven by the Pump Price Margins and Components report.
Downstream margin is the combination of marketing and operating margins.
The graph compares the pump price and extax prices of regular unleaded gasoline.