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⛽ GasPriceSecret.com — Blog

GAS PRICES
BY STATE 2026
CHEAPEST & MOST EXPENSIVE

From $3.24 in Oklahoma to $5.62 in California — where you live determines how much you pay at the pump. Here is the complete state-by-state breakdown for March 2026.

⚠️
Alert — Prices Surging in 2026: The national average reached $3.88 per gallon as of March 19, 2026 — up nearly $1.00 per gallon in less than a month due to the ongoing conflict in the Middle East disrupting global oil supply. The EIA has called this the second-largest four-week price increase in at least 30 years.

Why Gas Prices Vary So Much by State

The spread between the cheapest and most expensive states in 2026 is staggering — $2.38 per gallon separates Oklahoma from California as of mid-March. On a 15-gallon fill-up, that’s a difference of $35.70 for the exact same amount of gas.

Four main factors drive these differences: state gas taxes, distance from refineries, local environmental regulations, and market competition. California, for example, has the highest gas tax in the nation, strict fuel blend requirements that limit supply, and long supply chains — all combining to push prices well above the national average.

THE 10 MOST EXPENSIVE STATES

Source: AAA State Gas Price Averages · As of March 19, 2026 · Regular unleaded

#1
California
Highest gas tax + strict fuel blend laws + long supply chains
$5.62
#2
Washington
High state tax + carbon pricing program adds to pump costs
$5.15
#3
Hawaii
Isolated island supply chain — all fuel shipped in by tanker
$5.07
#4
Nevada
Limited local refining capacity + high tourism demand
$4.59
#5
Oregon
High state gas tax + environmental regulations on fuel blends
$4.49
#6
Arizona
Desert climate requires summer fuel blends, limiting supply
$4.02
#7
Alaska
Remote geography — high distribution and transportation costs
$3.95
#8
Illinois
High combined state and local gas taxes push prices up
$3.85
#9
Pennsylvania
Among the highest gas tax rates on the East Coast
$3.79
#10
Florida
High tourism demand and long peninsula distribution routes
$3.70

THE 10 CHEAPEST STATES

Source: AAA State Gas Price Averages · As of March 19, 2026 · Regular unleaded

#1
Oklahoma
Low state gas tax + proximity to Gulf Coast refineries
$3.24
#2
Kansas
Low tax rate + central location near multiple refinery hubs
$3.25
#3
Iowa
Low distribution costs + high ethanol production keeps prices down
$3.35
#4
Mississippi
Among the lowest state gas taxes in the U.S.
$3.38
#5
Arkansas
Low tax + close access to Gulf Coast refinery supply
$3.40
#6
Missouri
Low gas tax + central U.S. location reduces logistics costs
$3.41
#7
Louisiana
Home to major Gulf Coast refineries — short supply chain
$3.43
#8
Texas
Major oil-producing state + competitive retail market
$3.44
#9
Tennessee
Low tax environment + easy pipeline access from Gulf refineries
$3.48
#10
Alabama
Low state fuel tax + proximity to Gulf Coast supply
$3.51

WHY PRICES ARE SURGING RIGHT NOW

Middle East Conflict

The ongoing conflict in the Middle East has disrupted global oil supply, particularly through the Strait of Hormuz — a critical shipping corridor through which roughly one-fifth of the world’s oil previously flowed. The resulting supply shock has pushed crude oil prices sharply higher, which flows directly to pump prices within days.

📈

Historic Rate of Increase

The EIA has confirmed that the pace of this price increase is the second-largest four-week jump in at least 30 years. The only larger single-month spike on record came after Hurricane Katrina in 2005. From late February to late March 2026, the national average rose nearly $1.00 per gallon.

🌸

Spring Demand Surge

Gas prices typically rise in spring as refineries switch to more expensive summer fuel blends and travel demand increases. In 2026 this seasonal pattern is colliding with the geopolitical supply disruption, amplifying the price spike further — particularly in states like California that require specific fuel formulations.

LIVE NEAR A STATE LINE? THIS IS YOUR BIGGEST OPPORTUNITY

The price gap between neighboring states is often significant enough to justify a short drive across the border. Here are the highest-value border crossings for gas savings right now:

California → Nevada or Oregon border towns
Save up to $1.13/gal
Illinois → Missouri or Indiana
Save up to $0.44/gal
Pennsylvania → New Jersey border areas
Save up to $0.30/gal
Washington → Idaho
Save up to $0.80/gal

WHAT THIS MEANS FOR YOUR WALLET

Whether you live in a cheap or expensive state, the strategies that reduce what you pay per gallon work everywhere. Using a gas price app, filling up mid-week, joining a warehouse club, and using a rewards credit card can save you 30–55¢ per gallon regardless of your state’s baseline price.

If you live in a high-price state like California, Washington, or Hawaii, these strategies are even more valuable — because you’re starting from a higher baseline, every cent-per-gallon saved has a bigger dollar impact over a full year of fill-ups.

Track what prices are doing in your region using our Live Regional Gas Prices section on the homepage — powered by official EIA data and updated every Monday.

Sources: AAA State Gas Price Averages (March 19, 2026), U.S. Energy Information Administration (EIA), TravelPirates state-by-state data (March 19, 2026), Empower Personal Dashboard gas spending data (March 16, 2026). Prices reflect regular-grade unleaded gasoline and are subject to change. | Affiliate Disclosure: Some links on this site may be affiliate links. See our full Disclaimer.

SEE YOUR REGION’S
LIVE PRICES

Check this week’s official regional gas prices from the U.S. Energy Information Administration — updated every Monday.

⛽ See Live Regional Prices

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