What's Happening
The Strait of Hormuz — the narrow waterway connecting the Persian Gulf to the Gulf of Oman — has been effectively closed to commercial shipping as of early August 2026, following a sustained campaign of Iranian attacks on vessels transiting the chokepoint. The crisis, which escalated sharply in late July and intensified through the first week of August, represents one of the most severe disruptions to global energy transit since the tanker wars of the 1980s.
The Strait of Hormuz is not merely a regional shipping lane. It is the single most critical artery in global energy logistics, handling approximately 21 million barrels of crude oil per day — roughly 21% of global petroleum liquids consumption — according to the U.S. Energy Information Administration. When that corridor closes, even partially, the consequences ripple outward with extraordinary speed.
Crude oil prices responded immediately. WTI (West Texas Intermediate) futures surged past $105 per barrel in early August trading, up from approximately $88 per barrel just three weeks prior — a move of nearly 19% in under a month. Brent crude, the international benchmark, climbed above $109 per barrel, levels not seen since the post-invasion energy shock of 2022. The velocity of the move has caught even veteran energy traders off guard.
But the crisis is doing something arguably more disruptive than spiking crude prices: it is rewriting the architecture of global LPG — liquefied petroleum gas — trade. LPG, which includes propane and butane, flows heavily through Hormuz from major Gulf producers including Saudi Arabia, Qatar, Kuwait, and the UAE. Those flows supply petrochemical feedstocks across Asia and heating fuel across Europe, and their disruption is creating cascading shortages that extend well beyond the pump.
For American drivers, the immediate translation is straightforward and painful: gas prices today are climbing fast, and the trajectory points higher before any relief arrives.
Data Snapshot
According to AAA, the national average gas price per gallon for regular unleaded reached approximately $3.89 as of the week of August 4–6, 2026 — up roughly 22 cents from the $3.67 average recorded just four weeks earlier. That single-month move represents one of the sharpest short-term increases since the post-COVID demand surge of 2021.
WTI crude oil spot prices, as tracked by the EIA, were trading near $105–$107 per barrel in early August 2026 sessions, compared to a 2026 year-to-date average closer to $82 per barrel through June. Brent crude was similarly elevated at $108–$110 per barrel.
EIA weekly petroleum inventory data showed a draw of approximately 6.2 million barrels from US commercial crude stockpiles in the most recent reporting week — well above the five-year seasonal average draw of roughly 1.8 million barrels for this time of year — signaling that domestic supply buffers are being tested. US refinery utilization remained near 91% of operable capacity, according to EIA, leaving limited slack to absorb further supply disruptions. The national average price per gallon for premium unleaded was tracking near $4.42, while diesel averaged approximately $4.11 per gallon nationally.
Why It Matters at the Pump
The crude-to-pump transmission mechanism is well established: as a rule of thumb, a $10-per-barrel increase in crude oil prices translates to roughly 24–25 cents per gallon at the retail level, though the timing lag typically runs two to four weeks as refiners reprice feedstock and wholesale distributors adjust rack prices.
With WTI having moved nearly $17–$19 per barrel above its pre-crisis baseline, the implied retail impact — once fully transmitted — could reach 40 to 47 cents per gallon on top of pre-crisis averages. That would push the national average gas price well above $4.10 per gallon for regular unleaded, and potentially toward $4.30–$4.50 if the crisis deepens or extends into September.
Regional impacts will not be uniform. California, already carrying the nation's highest retail gas prices due to its unique fuel blend requirements, state excise taxes exceeding 68 cents per gallon, and limited pipeline connectivity to Gulf Coast refineries, could see prices approach or exceed $5.50 per gallon for regular unleaded in major metro areas. The West Coast more broadly — Oregon, Washington, Nevada — will feel disproportionate pressure because Pacific Rim crude supply routes are also being repriced in response to Hormuz uncertainty.
The Midwest, which benefits from proximity to Cushing, Oklahoma — the WTI pricing hub — and a dense network of domestic pipeline infrastructure, will likely see smaller but still significant increases, potentially in the 25–35 cent range. Gulf Coast states including Texas, Louisiana, and Mississippi typically carry the lowest retail prices in the nation due to refinery density, but even those markets will not be insulated from a $105+ crude environment. The Northeast, heavily dependent on refined product imports and already constrained by aging refinery infrastructure, faces above-average exposure.
What's Driving This
The proximate cause is Iranian military action targeting commercial vessels in and near the Strait of Hormuz — a tactic Iran has employed intermittently since the 1980s but has now escalated to a level that has effectively suspended normal transit operations. Lloyd's of London war risk insurance premiums for Hormuz-transiting vessels have reportedly surged to levels that make many voyages economically unviable, even before factoring in physical risk to crew and cargo.
The structural cause runs deeper. OPEC+ — the alliance of OPEC members and allied producers including Russia — had already implemented production cuts totaling approximately 3.66 million barrels per day through agreements extended into late 2026, leaving global spare capacity thin. The International Energy Agency (IEA) had warned as recently as its July 2026 Oil Market Report that global oil inventories were tracking below the five-year average, creating a market with limited shock-absorption capacity.
The LPG dimension adds a layer of complexity that pure crude oil analysis misses. Saudi Arabia's Saudi Aramco is the world's largest LPG exporter, shipping propane and butane primarily to Asian markets through Hormuz. Qatar, the world's dominant LNG exporter, also routes significant LPG volumes through the strait. With those flows disrupted, Asian petrochemical producers are scrambling for alternative supply from the US Gulf Coast and West Africa — a reallocation that tightens US propane markets and indirectly pressures domestic energy prices.
Seasonal timing compounds the problem. August marks the beginning of the pre-winter propane procurement season in the US Midwest and Northeast, where propane heating is common in rural communities. A supply squeeze now creates inventory risk heading into the heating season.
Historical Context
To understand the magnitude of the current Hormuz crisis, it helps to benchmark it against prior episodes. During the 2019 Gulf of Oman tanker attacks — widely attributed to Iran — WTI crude spiked approximately $2–$3 per barrel in a single session but quickly retraced as the incidents remained isolated. The current crisis is categorically different in scale and duration.
The closest modern parallel is the 1980–1988 Iran-Iraq War tanker conflict, during which Hormuz transit was repeatedly threatened and global insurance markets seized up. That episode contributed to sustained oil price volatility throughout the mid-1980s.
More recently, the Russian invasion of Ukraine in February 2022 sent WTI crude from approximately $90 per barrel to a peak of $130 per barrel by March 2022 — a 44% spike — and pushed the national average gas price to an all-time record of $5.02 per gallon in June 2022, according to AAA. The current trajectory, with WTI at $105–$107 and climbing, is tracking toward that same territory if the crisis is not resolved within weeks rather than months.
By contrast, the 2023–2024 period saw WTI trade in a relatively contained $70–$90 range, and the national average gas price spent much of 2024 and early 2025 between $3.20 and $3.60 per gallon — a period of relative relief that now appears to be ending abruptly.
Regional Breakdown
California is the bellwether. The state's retail gas prices, already averaging near $4.85–$4.95 per gallon for regular unleaded before the crisis, could breach $5.50 in Los Angeles, San Francisco, and San Diego within two to three weeks if crude prices hold above $105. California's reliance on Alaska North Slope crude and specific CARB-compliant fuel blends limits its ability to quickly substitute cheaper alternatives.
The Pacific Northwest — Oregon and Washington — typically tracks California with a modest discount but faces similar supply constraints. Nevada and Arizona, supplied largely by California refineries via pipeline, will follow West Coast pricing dynamics.
Texas and the Gulf Coast states remain the most insulated, with current averages near $3.55–$3.65 per gallon for regular. However, even Gulf Coast rack prices are moving higher as crude feedstock costs rise.
The Midwest — Illinois, Indiana, Ohio, Michigan — is currently averaging near $3.70–$3.80 per gallon and could push toward $4.00–$4.10 if the crisis extends. The Great Lakes region faces additional exposure from the seasonal propane demand dynamic.
The Northeast — New York, Massachusetts, Connecticut, Pennsylvania — where retail prices were already running $3.80–$3.95 per gallon, faces above-average risk given limited domestic refinery capacity and dependence on imported refined products.
Florida, a major tourism-driven fuel consumption state, was tracking near $3.60–$3.70 per gallon and could see prices approach $3.90–$4.00 within weeks.
What Experts Are Saying
Analysts at Goldman Sachs energy research have indicated that a sustained Hormuz closure scenario — defined as more than 30 days of significantly impaired transit — could push Brent crude toward $120–$130 per barrel, a level that would translate to national average gas prices above $4.50 per gallon. The bank has reportedly revised its Q3 2026 oil price forecast sharply upward.
The IEA has stated it stands ready to coordinate a release from member nations' strategic petroleum reserves (SPR) if market conditions warrant — a tool used most recently in 2022 following the Russia-Ukraine shock. The US Strategic Petroleum Reserve, which was drawn down significantly in 2022 and has been only partially replenished since, currently holds approximately 400 million barrels, according to the US Department of Energy — providing a meaningful but not unlimited buffer.
AAA has noted that the speed of the current price increase — more than 20 cents per gallon in under a month — is consistent with a genuine supply shock rather than speculative movement alone, suggesting the increases are likely to be sticky until the underlying geopolitical situation stabilizes.
GasBuddy's head of petroleum analysis has advised drivers in high-price states to consider filling up sooner rather than later, as wholesale prices feeding into retail stations are moving higher daily.
What Drivers Should Expect
The honest outlook: gas prices are likely to continue rising over the next two to four weeks as the crude oil price spike fully transmits through the refining and distribution chain to retail pumps. The national average gas price, currently near $3.89 per gallon, could realistically reach $4.10–$4.30 per gallon by late August 2026 if WTI crude holds above $100 per barrel. A further escalation in Hormuz hostilities — or a confirmed closure of the strait to all traffic — could push prices toward the 2022 record territory above $4.50.
What could reverse the trend: a diplomatic resolution or ceasefire that reopens Hormuz transit; a coordinated IEA strategic reserve release; or a demand destruction signal from major economies. None of those outcomes appears imminent as of early August.
For drivers, the practical calculus is clear. If your tank is below half, fill up now — wholesale prices feeding retail stations are moving higher on a daily basis, and stations in high-demand areas are repricing upward in real time. Use GasBuddy or the AAA TripTik app to identify the lowest-priced stations within a reasonable radius before you pull in. Wholesale club stations — Costco, Sam's Club, BJ's — typically run 10–20 cents per gallon below street prices and are worth the detour. If you drive a flex-fuel vehicle, E85 ethanol prices have not yet moved in lockstep with gasoline and may offer meaningful savings in states where it is widely available, including Illinois, Minnesota, and Iowa.