PADD 4 · Regional fuel market
Weekly average from the U.S. Energy Information Administration, week of September 14, 2026. Below: where this sits in its 52-week range, what the price is made of, and what actually moves this market.
WTI crude has risen $15.03/bbl over the past month. Retail gasoline typically follows crude moves with a 2–4 week lag as refined fuel works through the supply chain.
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Ranked by pump price. Click a region to view its dashboard.
| # | Region | Regular ↑ | vs others | vs last wk | Mid | Prem | Diesel |
|---|---|---|---|---|---|---|---|
| ↓ | Texas | $3.806 | +0.188 | $4.30 | $4.65 | — | |
| 2 | Gulf Coast (PADD 3) | $3.852 | +0.167 | $4.36 | $4.70 | $6.03 | |
| 3 | Lower Atlantic (PADD 1C) | $4.041 | +0.181 | $4.51 | $4.87 | $6.10 | |
| 4 | Midwest (PADD 2) | $4.091 | +0.197 | $4.58 | $5.18 | $6.25 | |
| 5 | Florida | $4.102 | +0.242 | $4.56 | $4.86 | — | |
| 6 | Ohio | $4.147 | +0.262 | $4.71 | $5.26 | — | |
| 7 | East Coast (PADD 1) | $4.191 | +0.160 | $4.69 | $5.07 | $6.16 | |
| 8 | Minnesota | $4.223 | +0.146 | $4.59 | $5.16 | — | |
| 9 | Colorado | $4.230 | +0.043 | $4.62 | $4.99 | — | |
| 10 | Massachusetts | $4.253 | +0.093 | $4.85 | $5.27 | — | |
| 11 | New England (PADD 1A) | $4.294 | +0.105 | $4.88 | $5.27 | $6.20 | |
| 12 | U.S. National Average | $4.319 | +0.162 | $4.92 | $5.32 | $6.29 | |
| 13 | New York | $4.339 | +0.079 | $4.86 | $5.29 | — | |
| 14 | Central Atlantic (PADD 1B) | $4.387 | +0.147 | $4.92 | $5.26 | $6.31 | |
| 15 | Rocky Mountain (PADD 4)you | $4.438 | +0.124 | $4.77 | $5.12 | $6.07 | |
| 16 | West Coast excl. CA | $5.026 | +0.051 | $5.42 | $5.67 | $6.57 | |
| 17 | West Coast (PADD 5) | $5.467 | +0.105 | $5.88 | $6.08 | $7.25 | |
| 18 | Washington | $5.503 | +0.020 | $5.82 | $6.03 | — | |
| ↑ | California | $5.827 | +0.149 | $6.11 | $6.28 | $8.04 |
Our reading of the last 52 weeks of EIA data for this market. Updated when EIA publishes its weekly survey each Tuesday morning.
At $4.438 a gallon, Rocky Mountain (PADD 4) is near its most expensive point of the past year. The cheapest week of the last year was $2.403 in January 2026; the most expensive was $4.587 in May 2026. Over the past four weeks the price has moved up 3.6%, and up 8.1% over three months.
Week-to-week, this market is among the most volatile fuel markets in the US — prices vary by 20.4% around their own average, against a typical US regional figure of roughly 5–7%.
Rocky Mountain (PADD 4) is currently $0.119 above the national average. Its typical gap over the past year has been $0.100 below the nation, so the current gap is $0.219 wider than usual.
| Crude oil | $2.359 | 53% | WTI at $99.08 a barrel ÷ 42 gallons |
|---|
Tax is not broken out for multi-state regions because each state within Rocky Mountain (PADD 4) sets its own rate. See our state gas tax comparison for every rate in the country.
Diesel is running at $6.066, a spread of $1.628 over regular. Diesel and home heating oil come off the same refinery stream, so that gap usually widens in winter.
The Rocky Mountain region is the smallest refining district in the country, so a single plant going down moves prices across several states.
PADD 4 is isolated from both the Gulf Coast and the West Coast by distance and terrain. It supplies itself from a small set of local refineries running regional and Canadian crude, with limited ability to import product quickly when something breaks.
The region accounts for only a few percent of US refining capacity, spread across small plants in Montana, Wyoming, Utah and Colorado. There is very little spare capacity in the system.
High-altitude markets historically permit lower-octane regular gasoline — 85 octane is commonly sold where most of the country sells 87 — because air density reduces knock risk. Check your owner’s manual before assuming 85 is appropriate for your vehicle.
Maintenance schedules and unplanned downtime at the region’s handful of refineries — there is no redundancy to absorb them.