US Regional Fuel Prices by PADD and State: What Fleets Should Know

Fuel costs don't move the same way in every part of the country, and fleet operators who only track the national average are working with an incomplete picture. Refining capacity, pipeline access, state taxes, and even local supply-agreement rules push regional prices apart, sometimes by more than a dollar a gallon on the same day. Understanding those gaps by PADD (Petroleum Administration for Defense District) and by state is one of the more practical things a fleet manager can do before setting budgets for the next quarter.

Why PADDs Still Matter for Fuel Buyers

The PADD system was drawn up decades ago to track fuel distribution during wartime, but it still shapes how gasoline and diesel move through the country. There are five districts: PADD 1 (East Coast), PADD 2 (Midwest), PADD 3 (Gulf Coast), PADD 4 (Rocky Mountain), and PADD 5 (West Coast). Each has its own refining base, pipeline connections, and import dependence, so a supply disruption in one region doesn't automatically show up the same way in another.

PADD 3, the Gulf Coast, is the country's refining engine. It has the largest concentration of refining capacity in the US and feeds pipelines that supply much of the East Coast and Midwest. PADD 5, the West Coast, runs more isolated. Limited pipeline connections to the rest of the country, tighter fuel specifications in California, and higher reliance on imports mean West Coast prices tend to run well above the rest of the nation, and they react more sharply when something goes wrong.

The National Picture

Nationally, diesel started the year at a $3.52 average and climbed to a peak of $5.59, a 59% jump, before settling back to $5.59 at the latest read. Gasoline followed a similar arc: a $2.70 January average, a peak of $4.35 (up 61%), and a latest price of $4.14. Those swings alone would be enough to blow up a fuel line-item budget built on January assumptions. But the regional detail is where the real planning risk sits.

Gulf Coast (PADD 3): Cheaper, But Not Immune

PADD 3 remains among the most affordable regions in the country for both fuels, which makes sense given its refining density. Diesel there ran from a $3.23 January average up to a $5.20 peak (+61%), and has since climbed past that peak to $5.48 at the latest reading. Gasoline moved from $2.41 in January to a $3.98 peak (+65%), settling at $3.68 now. Notice that the percentage increase in Gulf Coast gasoline, 65%, was actually higher than the national figure of 61%. Cheap doesn't mean stable. Refinery outages, hurricane season disruptions, and pipeline maintenance in this region can still produce sharp, fast-moving spikes, and because so much of the rest of the country depends on Gulf Coast supply, a shock here ripples outward.

For fleets running long-haul routes through Texas, Louisiana, and the broader Gulf corridor, this region often looks like the budget-friendly lane on paper. The volatility underneath that average is the part that catches operators off guard.

West Coast (PADD 5): The Expensive Outlier

If PADD 3 sits near the national floor, PADD 5 is the ceiling. Diesel opened the year at $4.18 and peaked at $6.72, a 61% increase, before settling at $6.41, still more than 80 cents above the national latest price. Gasoline ran from $3.39 in January to a $5.25 peak (+55%), landing at $4.84 now. Every one of those figures sits meaningfully above the national numbers at every stage: January, peak, and latest.

The reasons are structural, not temporary. California's fuel specifications require a cleaner-burning blend that few refineries outside the state can produce, which limits the pool of suppliers who can step in when something goes wrong. The state also carries some of the highest fuel taxes in the country. Add in a heavier reliance on marine imports for a share of supply, and you get a market that's consistently tight and consistently expensive, with less room to absorb shocks than the Gulf Coast has.

For fleets operating in California, Oregon, and Washington, this isn't a temporary premium to wait out. It's the baseline cost of doing business in that corridor, and it needs to be treated as a fixed planning input rather than a number that will eventually revert to the national average.

State Spotlight: Texas

Texas gasoline tracked closely with the broader Gulf Coast trend but showed its own texture. The state started the year at $2.37, a touch below the PADD 3 average, and peaked at $3.96, a 67% increase, the steepest percentage jump of any figure in this dataset. It has since eased to $3.63. That 67% swing is a useful reminder that even states sitting inside a relatively cheap refining region can experience outsized percentage moves. Fleets that base routing or bidding decisions purely on Texas's reputation as a low-cost state risk underestimating how much a spike can compress margins on fixed-rate contracts signed months in advance.

State Spotlight: California

California is the clearest illustration of how far state-level prices can diverge from the national number. Diesel started at $4.66 in January, well above the national $3.52, and peaked at $7.42, a 59% increase, landing at $7.21 now, a price that barely moved off its high. Gasoline followed the same pattern: $4.01 in January, a $5.97 peak (+49%), and a current price of $5.64. Both fuels in California are sitting near their peak levels rather than pulling back the way the national average has. Any fleet with even a partial California footprint needs a separate budget line for that state. Blending it into a national average understates the exposure significantly.

What's Driving the Broader Backdrop

None of these regional gaps exist in a vacuum. Oil prices have been reacting to the Russia-Ukraine conflict, with crude settling higher as attention shifted away from Middle East tensions toward Black Sea shipping risks, the same conflict that has pushed wheat to three-year highs and underscores how exposed global supply chains still are to a single flashpoint. Natural gas has also firmed as storage injections came in smaller than usual, tightening the inventory cushion heading into the fall. On the policy side, reports that Washington is negotiating direct ownership of Venezuelan oil fields, alongside a Saudi nuclear agreement now before Congress, point to a US energy strategy that's actively repositioning itself, adding another layer of uncertainty for anyone trying to forecast supply costs six or twelve months out. Layer in a Treasury market where yields keep climbing ahead of Fed commentary at Jackson Hole, and it's a backdrop where borrowing costs, energy policy, and regional supply constraints are all moving at once. That combination is exactly why regional averages, not just the national number, deserve a spot on the fleet manager's desk.

Building a Regional Fuel Strategy

A few practical steps make a real difference here. First, break your fuel budget out by the PADD or state where your trucks actually run, not by a blended national figure. Second, revisit that budget more often if a meaningful share of your miles fall in PADD 5 or California, where the gap to peak has stayed narrow and the downside risk is smaller than elsewhere. Third, build in a wider contingency margin for percentage swings, not just dollar amounts, since a 65 to 67% move on a low base can still wreck a route's profitability even if the absolute price looks manageable.

This is also where a fixed-price fuel supply agreement earns its place in the toolkit. FuelAnchor locks in a maximum price per gallon for a set volume, so a fleet running Gulf Coast lanes today and West Coast lanes next quarter isn't left guessing what next month's regional spike will do to margins. It doesn't eliminate the regional gaps described above, but it puts a ceiling on what any one of them can cost you.

Pull your last twelve months of fuel spend, sort it by state, and see how much of your exposure sits in PADD 5 or California specifically. That single exercise will tell you more about your real fuel risk than any national average ever could.