Wyoming diesel tax rate is 24.0¢ per gallon for 2026. Calculate your IFTA fuel tax for Wyoming routes.
Wyoming's diesel rate is 24.0¢/gal (2Q 2026). Cheyenne is Wyoming's primary freight hub at the I-25/I-80 interchange and handles significant cross-country freight as one of the highest-elevation points on the I-80 corridor.
I-80 (Salt Lake City UT–Cheyenne–Omaha NE, primary east-west), I-25 (Denver CO–Cheyenne–Casper–Montana), I-90 (South Dakota–Gillette–Buffalo–Montana), US-30 (Evanston–Rock Springs–Rawlins, secondary I-80 parallel)
Wyoming's energy sector — coal from the Powder River Basin (largest coal producing region in the US), oil and natural gas from the Pinedale/Jonah fields — generates enormous heavy freight volume.
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