RBOB gasoline futures have surged 52% above year-ago levels as the de facto closure of the Strait of Hormuz removed 10.5 million b/d of Middle Eastern crude output, cascading into the tightest refined product market after 2008. With the July contract settling at $3.036/gal on May 29 and Q2 2026 averaging $3.38/gal, the market faces a summer driving season unlike any in recent memory.
EIA data shows gasoline stocks have fallen for six consecutive weeks, dropping to 215.7 million barrels — roughly 4% below the five-year average. The convergence of historically low inventories, peak seasonal demand, and persistent supply chain disruption from Middle East hostilities creates a uniquely volatile setup for Q3 procurement planning.
ESTIMATE We assess a 55% probability that RBOB remains above $3.00/gal through July, with acute upside risk to $4.00/gal if Strait of Hormuz disruptions extend into August.
The global refined products market is experiencing its most severe supply disruption since the 1990 Gulf War. The closure of the Strait of Hormuz — through which roughly 20% of global oil transits — has fundamentally reshaped the supply-demand balance. EIA's May STEO estimates 10.5M b/d of crude production crude production was shut in for Iraq, Saudi Arabia, Kuwait, UAE, Qatar, and Bahrain in April alone.
FACT Brent crude averaged $117/bbl in April, peaking at $138/bbl on April 7. EIA forecasts Brent at ~$106/bbl through June, easing to $89/bbl in Q4 2026 and $79/bbl in 2027 as Middle East production gradually recovers.
FACT The UAE formally left OPEC effective May 1, 2026. OPEC spare capacity drops from a prior forecast of 3.8M b/d to just 2.5M b/d in 2027, removing a critical buffer against future supply shocks.
ESTIMATE US crude production is forecast at 13.6M b/d for 2026 (unchanged from 2025) and 14.1M b/d in 2027. US output partly offsets the supply gap but cannot compensate for the scale of Middle East disruptions in the near term.
Quarterly average line chart (left) shows the parabolic surge from Q4 2025 ($1.86) to Q2 2026 ($3.38). Annual bar chart (right) highlights the 2026 YTD average ($2.71) versus prior years. Procurement zone highlighted in purple/violet.
FACT The New York Harbor (NYH) RBOB basis is the physical delivery point for the futures contract. East Coast gasoline inventories are critically low as Colonial Pipeline flows are directed to maximize throughput. Refinery utilization in PADD 1 averaged 87% in May, constrained by maintenance turnaround schedules.
ESTIMATE The NYH-Brent crack spread has widened to approximately $28/bbl, up from $12/bbl in Q4 2025, reflecting the acute refining margin compression from crude supply scarcity. We estimate a $0.15-0.25/gal regional premium over futures for prompt physical delivery.
FACT The Gulf Coast accounts for roughly 55% of US refining capacity. PADD 3 refinery utilization ran at 93% in late May, the highest of any district. But export demand for gasoline blending components has surged as foreign buyers seek US supply to replace lost Middle East cargoes.
ESTIMATE US petroleum product exports hit a record high in early May. Gulf Coast gasoline exports are diverting supply that would normally flow to the East Coast via pipeline, contributing to the NYH supply tightness. We estimate this arbitrage flow will persist until Middle East refining capacity comes back online.
ESTIMATE California's CARB gasoline specifications create a separate market that typically commands a $0.30-0.60/gal premium to RBOB futures. With RBOB at $3.04/gal, we estimate California retail prices approaching $4.25-4.50/gal this summer. The region faces additional upward pressure from reduced Canadian crude imports via the Trans Mountain pipeline expansion.
ESTIMATE For a mid-size fleet operator consuming 100,000 gallons of gasoline per month, the year-over-year increase from the Q2 2025 average of $2.11/gal to the Q2 2026 average of $3.38/gal represents an additional $127,000/month in fuel cost — a 60% increase. On an annualized basis, this equates to roughly $1.52 million in incremental fuel expenditure versus 2025.
SPECULATION If RBOB averages $3.50/gal through Q3 (our base case), the incremental annual cost burden for a 1M gallon/year fleet rises to approximately $1.4M. Hedging at current forward curve levels (Jul $3.04, Aug $2.98, Sep $2.92) locks in substantial savings versus spot procurement.
ESTIMATE The consumer impact is equally significant. At the EIA's forecast retail price of $3.88/gal for 2026, the average US household (consuming ~500 gal/year) faces an additional ~$390/year in gasoline costs compared to 2025's average of $3.10/gal.
Strait of Hormuz partially reopens in late June; shipping at 60% of pre-conflict by September. RBOB trades $2.85-3.50/gal through Q3, averaging ~$3.20. Brent at $95-100/bbl. Key assumptions: No further Iran-US escalation; ~8M b/d of shut-in production returns by Q4.
Strait closures persist through August or broader Middle East conflict erupts. RBOB spikes to $3.80-4.50/gal. Brent exceeds $120/bbl. SPR draws approach 300M barrels. US gasoline retail exceeds $4.50/gal. Trigger events: Iran-US open conflict, Saudi infrastructure damage, or Hormuz mining operations.
Ceasefire and Hormuz reopening by mid-June. Global oil inventories rebuild. RBOB falls to $2.40-2.80/gal by Q3. Brent drops to $80/bbl. US gasoline retail falls below $3.50/gal. Trigger events: Diplomatic resolution, coordinated SPR releases, or demand destruction from high prices.
| Action | Timeframe | Cost/Benefit | Risk Level | Priority |
|---|---|---|---|---|
| Layer in Q3 swaps/options at $2.85-3.05 | 1-3 months | Locks in ~$0.30-0.50/gal below spot | Medium | HIGH |
| Increase on-site storage inventory | Immediate | Insulates against Q3 spike risk | Low | HIGH |
| Evaluate propane/CNG substitution | 3-6 months | Fuel cost diversification | Medium | MEDIUM |
| Monitor EIA weekly releases (Wed 10:30am) | Ongoing | Early signal of inventory inflection | None | MEDIUM |
| Set $3.70 stop-loss on spot hedges | 1-2 months | Limits upside on further escalation | Low | MEDIUM |
| Reduce fixed-price commitments | If bear case | Floats with falling market | Medium | LOW |
ESTIMATE Implement layered hedging immediately. The current forward curve prices Jul (82.6c), Aug (81.2c), and Sep (79.5c) below spot, reflecting expectations of easing supply. But our base case (55% probability) suggests further upside. We recommend locking in 40% of Q3 volume via swaps at $2.85-3.05/gal, with a collar structure to participate in any decline below $2.70. For Q4, delay coverage until more clarity on Hormuz emerges, but prepare trigger orders at $2.60-2.70/gal.
All prices and inventory figures are sourced from EIA, CME Group, Reuters, API, and proprietary rzzro.com price data. The following metrics underpin this report.