Northern MileRocky Mountain (PADD 4) diesel
Rocky Mountain (PADD 4) diesel: $6.302/gal (C$8.920/gal), EIA weekly retail diesel survey, week ending 2026-10-12. Northern Mile Media, dashboard.northernmilemedia.com/us-diesel/district/rocky-mountain/
What Rocky Mountain (PADD 4) covers
Colorado, Idaho, Montana, Utah and Wyoming.
States in Rocky Mountain (PADD 4)
Each state's own fuel tax and IFTA rate
The other districts
US dollars per gallon · CAD equivalent shown
Rocky Mountain (PADD 4) diesel, every week
Where Rocky Mountain (PADD 4) and the rest of North America moved, and what it means for a cross-border carrier's week. One email on Wednesday mornings.
Subscribe freeWhat moves the Rocky Mountain (PADD 4) figure
Rocky Mountain (PADD 4) averages 6.302 a gallon this week, above the US national figure by 0.123. That spread is not weather and it is not one refinery outage. District prices separate on three things that stay put: the state fuel taxes the pump has to carry, the distance the fuel travels from the nearest refinery or import terminal, and how much of the local demand is trucks rather than cars.
The EIA surveys retail pumps, so 6.302 already includes every federal, state and local tax plus whatever margin the retailer is taking. It is a delivered retail price, not a wholesale rack price, and it is not your invoice.
It is also why this is a district and not a state. The EIA publishes ten districts and no state-level diesel series, so a state inside Rocky Mountain (PADD 4) carries the district reading with its own tax position shown beside it, rather than a survey of that state alone.