Key Takeaways
- National average gas price: $3.48/gallon as of March 10, 2026 — up 42% from pre-war levels
- California leads at $5.20/gallon due to refinery constraints and highest state fuel taxes
- Strait of Hormuz shipping down 95%, threatening a second price wave
- U.S. Strategic Petroleum Reserve holds ~350 million barrels — enough to cover the supply gap for 4-6 months
- Oil-producing states (Texas, Oklahoma, Louisiana) paying $2.85-2.95 vs. coastal states at $4-5+
How the Iran War Reshaped American Gas Prices
Before military operations against Iran began on March 1, 2026, crude oil sat at $67 per barrel and the national average gas price was approximately $2.45 per gallon. In just 10 days, crude spiked to $120 at its peak before seesawing on conflicting battlefield reports. The national gas average climbed to $3.48 — and in some states, the damage is far worse.
But that national average masks enormous state-by-state variation. What Americans pay at the pump depends on their distance from refineries, crude oil sources, state tax rates, pipeline infrastructure, and fuel blend requirements. The difference between filling up in Texas versus California is now $2.25 per gallon — or roughly $34 per tank.
Gas Prices by State — March 2026
Most Expensive: West Coast States
| State | Price/Gallon | Change vs. Pre-War |
|---|---|---|
| California | $5.20 | +49% |
| Hawaii | $5.05 | +44% |
| Washington | $4.65 | +46% |
| Oregon | $4.50 | +43% |
| Nevada | $4.35 | +41% |
| Alaska | $4.10 | +40% |
Above Average: East Coast and Northeast
| State | Price/Gallon | Change vs. Pre-War |
|---|---|---|
| New York | $4.10 | +45% |
| Connecticut | $3.95 | +42% |
| Massachusetts | $3.90 | +41% |
| Pennsylvania | $3.85 | +40% |
| New Jersey | $3.80 | +39% |
| Maryland | $3.75 | +38% |
| Virginia | $3.60 | +37% |
Near National Average: Midwest and South
| State | Price/Gallon | Change vs. Pre-War |
|---|---|---|
| Illinois | $3.70 | +38% |
| Florida | $3.55 | +37% |
| Michigan | $3.45 | +36% |
| Indiana | $3.35 | +35% |
| Ohio | $3.35 | +35% |
| Georgia | $3.30 | +35% |
| Tennessee | $3.20 | +34% |
| North Carolina | $3.30 | +35% |
Cheapest: Oil-Producing States
| State | Price/Gallon | Change vs. Pre-War |
|---|---|---|
| Texas | $2.95 | +28% |
| Oklahoma | $2.85 | +26% |
| Mississippi | $2.90 | +27% |
| Arkansas | $2.95 | +28% |
| Louisiana | $2.90 | +27% |
| Kansas | $2.95 | +28% |
| Missouri | $3.00 | +29% |
Why California Is at $5.20 and Texas Is at $2.95
California’s Perfect Storm
California’s gas prices are the highest in the nation for structural reasons that the Iran crisis has amplified:
- Highest state fuel tax: 68 cents per gallon in state taxes and fees — the most in the country
- Special fuel blend requirements: California’s CARB standards mandate a unique low-emission gasoline blend produced by a limited number of refineries
- Import dependency: Approximately 50% of California’s crude oil is imported, including supplies historically sourced from the Middle East
- Shrinking refinery capacity: Several California refineries have closed in recent years, reducing local production capacity
- No Gulf Coast pipeline connection: Unlike East Coast states, California cannot tap into the massive refinery complex along the Texas-Louisiana Gulf Coast
Why Texas Is Insulated
Texas benefits from structural advantages that buffer it against global oil supply shocks:
- Largest U.S. oil producer at 5.5 million barrels per day
- Home to the largest concentration of refineries in the Western Hemisphere along the Gulf Coast
- Low state fuel tax: 20 cents per gallon
- Near-complete reliance on domestically produced crude
- Extensive pipeline infrastructure connecting production, refining, and distribution
The Strait of Hormuz: The Global Bottleneck
Approximately 21% of global oil supply — roughly 21 million barrels per day — transits the Strait of Hormuz under normal conditions. With shipping through the strait down 95% since the conflict began, the world faces its most significant energy supply disruption since the 1973 Arab oil embargo.
For the United States specifically, direct dependence on Persian Gulf oil has declined substantially since the shale revolution. America now produces approximately 13 million barrels per day domestically. However, oil markets are global. When Asian and European buyers compete for non-Gulf oil supplies, prices rise everywhere — including at American gas stations.
The ripple effect works like this: Saudi Arabia, UAE, Kuwait, Iraq, and Qatar — which together export roughly 16 million barrels per day through Hormuz — are now largely cut off from Asian customers. Those customers are now bidding for the same West African, Latin American, and North Sea crude that U.S. refiners use, driving up the cost of all oil everywhere.
Historical Comparison: Russia-Ukraine 2022 vs. Iran 2026
| Metric | Russia-Ukraine (2022) | Iran War (2026) |
|---|---|---|
| Peak crude oil price | $130/barrel | $120/barrel (so far) |
| Peak national gas average | $5.01/gallon (June 2022) | $3.48 (and rising) |
| Supply at risk | 7M bbl/day (Russian exports) | 3.4M (Iran) + Hormuz transit |
| SPR response | Released 180 million barrels | Under consideration |
| Waterway closure | None | Hormuz effectively closed (95% reduction) |
| Duration of price impact | 6-8 months | Ongoing — Day 11 |
| U.S. domestic production | ~12M bbl/day | ~13M bbl/day |
The critical difference: in 2022, no major maritime chokepoint was closed. The effective closure of the Strait of Hormuz in 2026 represents an unprecedented disruption to global energy logistics. Even if Iranian oil production itself is a smaller share than Russian exports were, the Hormuz bottleneck affects all Gulf state exports.
Strategic Petroleum Reserve: Can It Help?
The U.S. Strategic Petroleum Reserve (SPR) currently holds approximately 350 million barrels — down from 638 million barrels in 2020 after the massive drawdown during the 2022 energy crisis. The SPR was partially refilled in 2023-2024 but remains well below historical capacity.
The math: America consumes roughly 20 million barrels per day but produces about 13 million domestically. The net import gap is approximately 7 million barrels per day, though not all of that comes from the Gulf. The portion of imports directly affected by the Hormuz closure is estimated at 2-3 million barrels per day for U.S.-bound supply.
At maximum drawdown rate (4.4 million barrels per day), the SPR could cover the gap for roughly 80 days. At a more realistic deployment rate targeted at the actual shortfall, it could provide 4-6 months of cushion. As of March 10, 2026, the Biden administration has not announced any SPR release.
Refinery Dependency by Region
Gulf Coast (PADD 3) — Texas, Louisiana, Mississippi, Alabama
The Gulf Coast refinery complex processes 9.8 million barrels per day — nearly half of total U.S. refining capacity. These refineries primarily use domestically produced crude from the Permian Basin and Eagle Ford. Impact from the Iran crisis: Low to moderate.
East Coast (PADD 1) — Northeast and Southeast states
East Coast refineries are fewer and process a higher proportion of imported crude. States like New York, New Jersey, and Pennsylvania receive refined products via pipeline from the Gulf Coast or by tanker from overseas. Impact: Moderate to high.
West Coast (PADD 5) — California, Washington, Oregon, Hawaii, Alaska
West Coast refineries are largely isolated from the rest of the U.S. pipeline network. California imports roughly half its crude, and Hawaii imports nearly all of it. These states have the least flexibility to source alternative supply. Impact: High.
Midwest (PADD 2) — Illinois, Ohio, Indiana, Michigan
Midwest refineries rely heavily on Canadian oil sands crude delivered via pipeline. This gives the region significant insulation from Middle East supply disruptions. Impact: Low to moderate.
How Long Will Prices Stay High?
The trajectory depends on the military and diplomatic situation:
- Optimistic scenario (prices ease within 2-3 months): A ceasefire or de-escalation reopens Hormuz shipping lanes gradually. Oil returns to $80-90/barrel.
- Base case (6-8 months of elevated prices): Continued tensions with slow adaptation through alternative shipping routes (longer voyages around Africa). National average gas settles at $3.50-4.00.
- Pessimistic scenario (12+ months): Conflict escalation, prolonged Hormuz closure, potential involvement of other Gulf states. Oil reaches $150/barrel. National gas average could hit $5.00+.
Wall Street analysts are divided. Some investment banks project oil returning to $80-90 by end of Q2 2026 if the conflict is contained. Others warn of $150 oil if fighting extends to Gulf shipping lanes beyond Hormuz.
What Consumers Can Do Right Now
- Price comparison apps: GasBuddy and Waze show the cheapest stations near you — price differences of 40+ cents between stations in the same city are common during supply disruptions
- Membership fuel discounts: Costco ($0.15-0.25/gallon savings), Sam’s Club, and BJ’s offer significantly below-market pump prices
- Cash-back credit cards: Cards like Citi Custom Cash (5% on gas) and Wells Fargo Active Cash (2%) can offset $150-300 annually at current prices
- Driving efficiency: Maintaining tire pressure, removing roof racks, and moderate acceleration can improve fuel economy by 10-15%
- Remote work: If your employer offers hybrid options, shifting one additional day per week to remote work saves roughly 20% on commuting fuel
- Day-of-week pricing: Gas prices are typically lowest on Monday and Tuesday and highest on Thursday and Friday — filling up early in the week can save 5-10 cents per gallon
- Electric vehicle consideration: For those planning a new vehicle purchase, the current crisis strengthens the economic case for EVs or plug-in hybrids with federal tax credits of up to $7,500
Impact on Inflation and the U.S. Economy
Rising fuel costs ripple through every sector of the American economy. Trucking and logistics companies pass higher diesel costs to retailers, who pass them to consumers. The U.S. Bureau of Labor Statistics estimates that a sustained $1/gallon increase in gas prices adds approximately 0.5 percentage points to headline CPI inflation over 3-6 months.
Sectors most affected in March 2026:
- Airlines: Over 23,000 flights cancelled due to Middle East airspace closures and fuel costs. Remaining routes are repricing at 15-30% premiums.
- Trucking and logistics: Diesel at $4.20 national average is squeezing margins across the supply chain
- Agriculture: Spring planting season coincides with the price spike — fertilizer and equipment fuel costs rising
- Retail: Higher delivery costs beginning to appear in consumer goods pricing
The Federal Reserve is watching closely. Markets had priced in two rate cuts for 2026, but persistent energy inflation could delay or eliminate those cuts — adding pressure on mortgage rates, credit cards, and business lending.
Frequently Asked Questions
What is the average gas price in the US in March 2026?
The national average is $3.48 per gallon as of March 10, 2026. However, prices range from $2.85 in Oklahoma to $5.20 in California. The average has risen 42% since pre-war levels of approximately $2.45.
Will gas prices reach $6 a gallon?
In a worst-case scenario involving prolonged Strait of Hormuz closure and conflict escalation, some analysts project the national average could reach $5.00 and California could exceed $7.00. This remains an extreme scenario, not the base case forecast.
Why is gas so expensive in California right now?
California combines the nation’s highest state fuel tax (68 cents/gallon), special low-emission fuel blend requirements, import dependency for 50% of its crude oil, shrinking local refinery capacity, and isolation from Gulf Coast pipeline networks. The Iran crisis amplifies all of these structural vulnerabilities.
Will the government release oil from the Strategic Petroleum Reserve?
As of March 10, 2026, no SPR release has been announced. The reserve holds approximately 350 million barrels and could cover the supply shortfall for 4-6 months if deployed. The decision likely depends on whether the Hormuz closure persists beyond March.
How does the Iran war affect gas prices if the US produces its own oil?
Oil is a globally traded commodity. Even though the U.S. produces 13 million barrels per day domestically, global supply disruptions raise prices worldwide because producers can sell to the highest bidder. When Asian and European buyers compete for non-Gulf oil, it raises costs for American refiners too.
Prices cited reflect estimates as of March 10, 2026 and are subject to rapid change as the military situation evolves.
Related articles on The Middle East Insider:
