Level 1 - Absolute Beginner
Gas prices in the United States have dropped. The average price is now $3.999 per gallon. This is the first time prices have been this low since March.
Prices have gone down for 28 days in a row. Oil from the US now costs less than it did in May. Cheaper oil means cheaper gas at the pump.
Some states have very low prices. South Carolina has gas for $3.58 per gallon. California still has high prices at $5.64 per gallon.
- gas
- a liquid fuel used to power cars
- price
- the amount of money you pay for something
- gallon
- a unit used to measure liquids in the US
- average
- the middle or typical amount
- drop
- to go down or become lower
- oil
- a liquid taken from the ground and used to make fuel
- pump
- a machine at a gas station that puts fuel in your car
- state
- one of the 50 regions that make up the United States
Level 2 - Elementary
For the first time since March 30, the national average price of gasoline in the United States has dropped below $4 per gallon. On June 18, drivers paid an average of $3.999 for a gallon of regular unleaded gas. This small but meaningful change has given relief to millions of American families.
The drop comes after 28 straight days of falling prices. US crude oil prices fell about 20 percent from their May peak of $109 per barrel. A peace agreement between the United States and Iran helped calm fears that oil shipments through the Persian Gulf could be blocked.
Prices vary widely across the country. South Carolina offers the cheapest gas at $3.58 per gallon, while California drivers still pay $5.64. In total, 28 of the 50 states now have gas prices below $4 per gallon.
- national average
- the typical price calculated across the whole country
- unleaded
- a type of gasoline that does not contain lead
- relief
- a feeling of comfort when something difficult gets better
- crude oil
- oil in its natural form before it is processed into fuel
- peak
- the highest point reached
- agreement
- a deal between two or more parties
- vary
- to be different from place to place or time to time
- shipment
- goods that are sent from one place to another
Level 3 - Intermediate
American motorists received welcome news on June 18 when the national average retail price of regular unleaded gasoline slid to $3.999 per gallon, crossing below the $4 psychological barrier for the first time since March 30. The 28th consecutive daily decline brought the pump average down from its spring high of $4.42, offering tangible savings for commuters across the country.
The primary driver of relief has been a sharp correction in global crude oil markets. US West Texas Intermediate crude fell roughly 20 percent from its May high of $109 per barrel, pulled lower in part by the US-Iran memorandum of understanding signed on June 15. The agreement, which included implicit guarantees about uninterrupted Strait of Hormuz transit, reduced the geopolitical risk premium that had inflated energy costs throughout the spring.
Despite the nationwide headline, the fuel landscape remains uneven. California, where state taxes and reformulated fuel requirements add significantly to costs, still averaged $5.64 per gallon. South Carolina, benefiting from low state fuel taxes and proximity to Gulf Coast refineries, posted the national low at $3.58. In all, 28 of 50 states have crossed the sub-$4 threshold, with analysts noting the figure could rise to 35 states if crude holds near current levels through July.
- retail price
- the price paid by consumers at the point of sale
- psychological barrier
- a price level that carries strong emotional weight for buyers and sellers
- correction
- a decline in prices after they have risen to an unsustainably high level
- geopolitical risk premium
- extra cost built into commodity prices because of political tensions around the world
- memorandum of understanding
- a formal but non-binding agreement outlining intentions between parties
- implicit guarantee
- a promise that is understood but not directly stated in writing
- reformulated fuel
- a cleaner-burning blend of gasoline required in some US regions to meet air quality standards
- threshold
- a level at which something changes or a new situation begins
Level 4 - Advanced
For the first time since late March, the AAA-tracked national mean retail price for regular unleaded gasoline slipped to $3.999 per gallon on June 18, breaching the $4 threshold that carries outsized consumer-sentiment weight. The descent, now extending across 28 consecutive sessions, clocked a peak-to-trough move of approximately $0.42 from the spring ceiling of $4.42 -- a relief magnitude not seen since the post-hurricane rebound cycles of the early 2020s.
The macro catalyst has been a structural repricing of the geopolitical risk premium embedded in Brent and WTI benchmarks throughout spring 2026. The US-Iran memorandum of understanding signed June 15 -- the first formal bilateral framework since the collapse of the JCPOA -- incorporated implicit safe-passage guarantees for Strait of Hormuz transit, unwinding roughly $18 to $22 of the per-barrel premium accumulated since the Hormuz closure scare of late April. WTI drifted from a May 9 peak of $109.40 to a June 18 settlement near $87.50, compressing the refinery crack spread and flowing directly into pump-price declines with the customary two-week lag.
The state-level dispersion remains a textbook illustration of how tax policy, reformulated fuel mandates, and refinery geography fracture what appears to be a single national market. California, bound by CARB-mandated CARBOB blend requirements and a state excise tax of $0.695 per gallon, posted $5.64 -- a $2.06 premium over South Carolina's $3.58, where a $0.28 excise rate and sub-24-hour tanker runs from Motiva's Port Arthur complex compress the rack-to-pump spread to near-minimum. EIA modeling projects that if WTI stabilizes in the $83 to $90 band through July Fourth, 35 of 50 states will trade below $4, while a return above $95 on a Hormuz re-escalation would push the national mean back above $4.30 within three weeks.
- consumer-sentiment weight
- the psychological importance of a price level in shaping how people feel about the broader economy
- peak-to-trough
- the full distance from the highest to the lowest point of a price move
- geopolitical risk premium
- the extra cost embedded in commodity prices due to political instability or conflict risk
- JCPOA
- the Joint Comprehensive Plan of Action, the 2015 Iran nuclear deal that later collapsed
- crack spread
- the margin between the price of crude oil and the price of refined petroleum products such as gasoline
- CARB
- the California Air Resources Board, which sets strict vehicle emission and fuel blend standards
- rack-to-pump spread
- the difference between the wholesale terminal price and the final retail price consumers pay at the station
- re-escalation
- a return to a higher level of tension or conflict after a period of de-escalation
