Gas prices in the US in Mar 2026?
Short Answer
Both the model and the market expect gas prices in the US to be Above 2.90 in March 2026, with no compelling evidence of mispricing.
1. Executive Verdict
- US-Iran conflict disrupts Middle East oil supplies via Strait of Hormuz.
- Mid-March 2026 US average gas prices are $3.70 to $3.79.
- March 2026 crude futures reflect a significant geopolitical risk premium.
- Early 2026 US gasoline inventories built, creating a supply cushion.
- EPA proposed 24.02 billion RINs for 2026 renewable fuel volumes.
- DOE outlines specific conditions for Strategic Petroleum Reserve drawdowns.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Above 3.70 | 98.0% | 98.0% | Sustained global demand for crude oil is expected to keep prices elevated. |
| Above 4.10 | 90.0% | 92.0% | Geopolitical instability could disrupt supply, leading to higher oil costs. |
| Above 4.50 | 43.0% | 43.0% | Strong economic growth or unexpected supply shocks may drive prices significantly upward. |
| Above 4.00 | 92.0% | 92.0% | Increased seasonal driving demand typically pushes gasoline prices higher. |
| Above 3.90 | 98.0% | 98.0% | Ongoing inflation and refining costs contribute to persistently high pump prices. |
Current Context
US average regular gas prices surged in March 2026 due to geopolitical factors. By mid-month, prices reached approximately $3.72 per gallon. This increase was primarily attributed to the Iran war, which disrupted oil supplies through the Strait of Hormuz [^]. As of March 17, the AAA reported the average price for regular gasoline at $3.790 per gallon [^].
While an exact price for March 31 was not available, prediction markets offered insights into potential future trends. Prediction platforms like Polymarket indicated low odds for US average regular gas prices exceeding $4 per gallon by the end of March 2026 [^].
2. Market Behavior & Price Dynamics
Historical Price (Probability)
Outcome probability
Date
This prediction market has exhibited a stable, sideways trend with minimal volatility, trading within a very narrow range of 98% to 99% probability for a YES resolution. The market opened at 98% and has since settled at 99%, where it currently trades. This price action indicates that from the market's inception, traders have held an extremely high conviction that US average gas prices would be above the $2.90 threshold on the resolution date. The 98% level has acted as a firm price floor or support, while the 99% level has served as a consistent ceiling or resistance point. The overall market sentiment is overwhelmingly confident in a YES outcome.
The lack of significant price movement, even with external shocks, is explained by the provided context. Real-world gas prices had already surged to approximately $3.79 per gallon by mid-March due to the Iran war. Since this real-world price was already well above the market's $2.90 threshold, the geopolitical news only served to confirm the market's pre-existing high probability, preventing any potential decline and cementing the price near its maximum. The total volume of 9,604 contracts traded, despite the stable price, suggests that while there was little price discovery, there was still consistent activity as traders likely sought to close out positions or secure near-certain profits.
3. Market Data
Contract Snapshot
This market resolves to Yes if the average regular gas price for the United States is strictly greater than $4.40 on March 31, 2026, as verified by AAA; otherwise, it resolves to No. The market opened on March 8, 2026, and closes on March 30, 2026, with a projected payout on March 31, 2026. Trading is prohibited for employees of Source Agencies and individuals with material non-public information.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| Above 2.90 | $1.00 | $0.01 | 99% |
| Above 3.00 | $1.00 | $0.01 | 99% |
| Above 3.10 | $1.00 | $0.01 | 99% |
| Above 3.20 | $1.00 | $0.01 | 99% |
| Above 3.30 | $1.00 | $0.01 | 99% |
| Above 3.35 | $1.00 | $0.01 | 99% |
| Above 3.40 | $1.00 | $0.01 | 99% |
| Above 3.50 | $1.00 | $0.01 | 99% |
| Above 3.60 | $1.00 | $0.01 | 99% |
| Above 3.45 | $1.00 | $0.01 | 98% |
| Above 3.70 | $1.00 | $0.02 | 98% |
| Above 3.80 | $1.00 | $0.02 | 98% |
| Above 3.90 | $0.99 | $0.02 | 98% |
| Above 4.00 | $0.96 | $0.08 | 92% |
| Above 4.15 | $0.93 | $0.10 | 92% |
| Above 4.20 | $0.92 | $0.11 | 92% |
| Above 4.10 | $0.91 | $0.10 | 90% |
| Above 4.25 | $0.86 | $0.16 | 81% |
| Above 4.30 | $0.83 | $0.20 | 80% |
| Above 4.35 | $0.64 | $0.37 | 64% |
| Above 4.40 | $0.54 | $0.47 | 53% |
| Above 4.45 | $0.48 | $0.59 | 48% |
| Above 4.50 | $0.43 | $0.60 | 43% |
| Above 4.60 | $0.31 | $0.72 | 35% |
| Above 4.70 | $0.25 | $0.81 | 24% |
| Above 4.80 | $0.13 | $0.89 | 14% |
| Above 5.00 | $0.10 | $0.94 | 10% |
| Above 4.90 | $0.10 | $0.92 | 9% |
Market Discussion
Traders are largely discussing the strong likelihood of gas prices being high or increasing significantly by March 2026. Arguments for "Yes" are based on recent trends and personal observations, with some users mocking predictions of lower prices and others expressing concern about the impact of expected high costs on personal plans. There are no explicit arguments presented for the "No" side within the visible discussion.
The active discussion shows a strong, sentiment-driven consensus among commentators that gas prices will likely be above $4.40, with some speculating even higher, which aligns with the market's current 53% probability for prices to exceed this threshold.
4. What Geopolitical Risk Premium Do Crude Oil Futures Price In?
| Current Implied Geopolitical Risk Premium (March 2026) | $25-30 per barrel (Web Research Results, 1, 2) [^] |
|---|---|
| Historical Geopolitical Risk Premium (Previous Tensions) | $4-10 per barrel (Web Research Results) [^] |
| Middle East Crude Premiums (Due to Supply-Demand Imbalances) | $56 per barrel (8) [^] |
March 2026 crude futures reflect a significant geopolitical risk premium. Brent and WTI crude oil futures contracts for March 2026 delivery currently incorporate an implied geopolitical risk premium estimated to be between $25 and $30 per barrel [^]. This substantial premium is attributed to current geopolitical concerns, specifically the Iran war and the potential for disruptions to shipping through the Strait of Hormuz. Analysts are closely monitoring these evolving geopolitical risks, which have prompted adjustments in their oil market outlooks [^].
This current premium vastly exceeds historical Middle East disruption impacts. For instance, prior Middle East tensions, such as earlier US-Iran standoffs, typically saw a geopolitical risk premium of $4 to $10 per barrel [Web Research Results]. The lingering geopolitical uncertainty requires a "crude rethink" in market strategies [^]. Further analysis indicates that Middle East crude premiums have "exploded" to $56 per barrel due to supply-demand imbalances [^], and Gulf oil supply cuts have triggered Brent spikes, potentially reigniting 1970s-style inflation risks [^]. Some market projections suggest that oil could reach $91 a barrel in late 2026, largely driven by potential disruptions involving Iran [^].
5. How Did U.S. Gasoline Inventories Shift in Early 2026?
| January 2026 Inventory Level | 4% above 5-year seasonal average [^] |
|---|---|
| February 2026 Inventory Trend | Declined [^] |
| Outlook for Spring Driving Season | Potential deficit [^] |
US gasoline inventories initially built, providing a supply cushion in January. In early 2026, U.S. total motor gasoline inventories accumulated, reaching levels 4% above the 5-year seasonal average by January [^]. This initial rise in stock levels suggested a domestic supply cushion at the start of the year, a trend often influenced by seasonal demand and refinery operations [^].
Inventories declined in February, signaling a diminishing supply cushion. However, this upward trend reversed in February 2026, as inventories began to decline [^]. The observed drawdowns during February indicate that the initial supply cushion was shrinking, potentially leading to a deficit in stock levels as the U.S. approaches the higher demand of the spring driving season [^]. This change from an abundant supply situation toward potential tightness could impact gasoline prices and availability in the coming months [^].
6. What Are the Proposed Renewable Fuel Volumes and RIN Prices for 2026?
| Proposed Renewable Fuel Volume 2026 | 24.02 billion RINs [^] |
|---|---|
| D6 RIN Credit Price (Late Feb 2026) | $0.40 per RIN [^] |
| 2026 Standards Status (March 2026) | Not yet finalized [^] |
The U.S. Environmental Protection Agency (EPA) proposed 24.02 billion RINs for 2026 RVOs. Specifically, the EPA put forth a total renewable fuel volume of 24.02 billion Renewable Identification Numbers (RINs) for Renewable Volume Obligations (RVOs) under the Renewable Fuel Standard for 2026 [^]. These proposed standards for 2026 and 2027 were intended to establish multi-year targets for the Renewable Fuel Standard program. However, as of March 2026, these proposals had not yet been finalized [^].
D6 RIN credit prices were approximately $0.40 in late February 2026. In late February 2026, D6 RIN credit prices were noted to be around $0.40 per RIN [^]. This specific cost directly contributes a non-petroleum-related component to the overall price of each gallon of finished gasoline [^]. The RIN market has experienced significant volatility, with reports from February 2026 indicating that RINs remained volatile or saw slight declines during that period [^].
7. What Triggers US Strategic Petroleum Reserve Oil Releases?
| Release Policy | Presidential finding of severe energy supply interruption or IEA obligation [^] |
|---|---|
| Recent Release (March 2026) | 172 million barrels via emergency exchange [^] |
| WTI Price Impact | Exceeded $100/bbl before release, fell to $88/bbl after [7, Research Summary] [^] |
The Department of Energy outlines specific conditions for Strategic Petroleum Reserve drawdowns. The DOE’s stated policy for SPR releases requires a presidential finding of a severe energy supply interruption or an obligation under the International Energy Program Agreement (IEA) [^]. While specific triggers for refills at certain price points are not explicitly fixed, the DOE has awarded contracts to begin replenishing the SPR following previous drawdowns [^].
A significant SPR emergency exchange was recently initiated due to global disruptions. An emergency exchange was announced on March 11, 2026, involving the release of 172 million barrels from the Strategic Petroleum Reserve [^]. This substantial release was initiated to stabilize the global oil supply due to ongoing disruptions in the Middle East [^]. At the time of this announcement, WTI crude oil prices had exceeded $100 per barrel, subsequently falling to $88 a barrel after the announcement on March 11, 2026 [7, Research Summary].
The DOE does not maintain a fixed WTI price threshold for intervention. Historically, the DOE does not maintain a fixed WTI price threshold at which it automatically intervenes to influence domestic fuel prices through SPR releases [Research Summary]. However, interventions have consistently occurred during periods of elevated oil prices and significant supply disruptions. Notable instances include releases during high price spikes in 2011 when WTI reached approximately $110 per barrel, and in 2022 when WTI prices exceeded $100 per barrel [3, Research Summary].
8. What Does the March 2026 RBOB-Brent Crack Spread Indicate?
| March 2026 RBOB-Brent Crack Spread | approximately $23.87/bbl [^] |
|---|---|
| Geopolitical Tension Impact | Influencing Brent crude prices and creating war premiums [^] |
| Historical Gasoline Price Pattern | Wholesale prices often decline before switch, then spike after [^] |
The March 2026 crack spread forecasts moderate transition costs. The forward market's pricing of the March 2026 RBOB-Brent crack spread, at approximately $23.87 per barrel, suggests that markets anticipate a moderate, yet notable, cost associated with the annual transition from winter-grade to summer-grade gasoline [^]. This spread indicates the refining margin for producing gasoline from crude oil, which typically widens as the industry shifts to more expensive-to-produce summer-grade fuel with stricter Reid Vapor Pressure (RVP) specifications. The pricing also incorporates the broader crude oil market context, including geopolitical tensions that influence Brent crude prices and create war premiums [^]. Thus, the March 2026 crack spread embeds the market's current expectation of refining costs, seasonal demand shifts, and external market pressures for that period.
Actual prior-year price impact data is not explicitly available. Specific data points for the actual price impact of the gasoline grade switch in the prior three years were not found in the provided web research results [Web Research Results]. However, historical patterns indicate that wholesale gasoline prices, such as those in California, often experience declines before the official switch to summer-grade gasoline, followed by subsequent price spikes as the new fuel is introduced to the market [^]. This pattern reflects refiners producing summer-grade gasoline in anticipation of the switch, which can initially lead to an oversupply of winter-grade fuel before demand shifts. Subsequently, the higher production costs and increased demand for summer-grade fuel drive prices up. The March 2026 crack spread aims to capture these anticipated market dynamics and associated costs in advance.
9. What Could Change the Odds
Key Catalysts
As of mid-March 2026, average US gas prices are estimated to be between $3.70 and $3.79 per gallon [^] . This elevated pricing is primarily attributed to a conflict involving the US and Iran, which has led to significant disruptions in Middle East oil supplies, particularly those transiting through the Strait of Hormuz [^]. Despite these disruptions, prediction markets indicate a low probability of gas prices reaching or exceeding $4 per gallon by March 31 [^]. Nevertheless, the consensus expectation is for high oil prices to persist and remain sustained through June, suggesting ongoing market concerns regarding supply stability [^].
Key Dates & Catalysts
- Strike Date: March 31, 2026
- Expiration: April 07, 2026
- Closes: March 31, 2026
10. Decision-Flipping Events
- Trigger: As of mid-March 2026, average US gas prices are estimated to be between $3.70 and $3.79 per gallon [^] .
- Trigger: This elevated pricing is primarily attributed to a conflict involving the US and Iran, which has led to significant disruptions in Middle East oil supplies, particularly those transiting through the Strait of Hormuz [^] .
- Trigger: Despite these disruptions, prediction markets indicate a low probability of gas prices reaching or exceeding $4 per gallon by March 31 [^] .
- Trigger: Nevertheless, the consensus expectation is for high oil prices to persist and remain sustained through June, suggesting ongoing market concerns regarding supply stability [^] .
12. Related News
13. Historical Resolutions
Historical Resolutions: 20 markets in this series
Outcomes: 9 resolved YES, 11 resolved NO
Recent resolutions:
- KXAAAGASM-26FEB28-2.985: NO (Feb 28, 2026)
- KXAAAGASM-26FEB28-3.02: NO (Feb 28, 2026)
- KXAAAGASM-26FEB28-3.01: NO (Feb 28, 2026)
- KXAAAGASM-26FEB28-2.99: NO (Feb 28, 2026)
- KXAAAGASM-26FEB28-2.98: YES (Feb 28, 2026)
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