CASPER, Wyo. — This week, drivers in Natrona County saw gas prices rise more than double the national average’s decrease.
The national average price fell 3.4 cents to $3.15 per gallon, according to GasBuddy data compiled from over 12 million individual price reports. The national average is up 1.6 cents from a month ago, but down 13.1 cents from a year earlier.
The national average price of diesel rose 1.4 cents in the last week to $3.665 per gallon.
“With the unofficial end of summer now behind us, we saw the lowest national average price for gasoline on Labor Day since 2020, with prices lower than a year ago in all but three states,” said Patrick De Haan, head of petroleum analysis at GasBuddy. “This concludes the most affordable summer at the pump since 2021, with drivers spending $11.3 billion less on gasoline than last year.
“While summer may be in the rearview mirror, low gas prices are not going away anytime soon. In fact, as long as there are no major hurricanes or other disruptions, we should see the national average drop to $2.99 per gallon this fall.
On Monday, AAA reported that the national average price for a gallon of regular gasoline is $3.18, up 2 cents from the previous week. In Wyoming, the average is $3.10, up one cent from last week. Natrona County’s gas price increased 7 cents to $2.78, keeping Wyoming’s lowest average fuel price by one penny.
According to AAA, the average price in Laramie County is $2.79, down 7 cents from last week and Wyoming’s second lowest average, trailing only Albany County’s $2.82.
The cheapest fuel in Natrona County on Monday was $2.62 at Exxon, 400 Valley Drive, followed by $2.65 at Sam’s Club, 4600 E. 2nd St., according to GasBuddy reports.
Also included in GasBuddy’s report:
OIL MARKET DYNAMICS
Oil prices saw a very active start to the shortened trade week as concerns of an escalation of the Russia-Ukraine conflict pushed oil higher, as well as the possibility that OPEC+ will not further raise oil production when it meets later this week. In early Tuesday trade, WTI crude oil was up $1.04 per barrel to $65.05, a roughly $1 gain from last Monday’s $64.08 per barrel start. Brent crude was also higher, rising 40 cents to $68.55 per barrel, just slightly higher than last week’s $68.10 start.
OIL AND REFINED PRODUCT SUPPLIES
The EIA’s Weekly Petroleum Status Report for the week ending August 22, 2025, showed U.S. oil inventories fell by 2.4 million barrels, and are about 6% below the seasonal average for this time of year, while the SPR rose 800,000 barrels to 404.2 million. Gasoline inventories fell by 1.2 million barrels and stand at the five-year seasonal average, while distillate inventories fell by 1.8 million barrels and are about 15% below the five-year seasonal average. Refinery utilization fell 2.0 percentage points to 94.6%, while implied gasoline demand, EIA’s proxy for retail demand, rose 398,000 bpd to 9.240 million barrels per day.
GAS PRICE TRENDS
The most common U.S. gas price encountered by motorists stood at $2.99 per gallon, unchanged from last week, followed by $2.89, $2.79, $3.09, and $3.19, rounding out the top five most common prices.
The median U.S. gas price is $2.99 per gallon, unchanged from last week and about 16 cents lower than the national average.
The top 10% of stations in the country average $4.46 per gallon, while the bottom 10% average $2.58 per gallon.
The states with the lowest average prices: Mississippi ($2.69), Oklahoma ($2.70), and Arkansas ($2.73).
The states with the highest average prices: California ($4.57), Hawaii ($4.43), and Washington ($4.33).
Biggest weekly changes: Ohio (-18.5¢), Michigan (-13.9¢), Indiana (-13.7¢), Florida (-11.1¢), Colorado (-9.3¢)
DIESEL PRICE TRENDS
The most common U.S. diesel price stood at $3.49 per gallon, unchanged from last week, followed by $3.59, $3.69, $3.79, and $3.39, rounding out the top five most common prices.
The median U.S. diesel price is $3.57 per gallon, up 2 cents from last week and about 10 cents lower than the national average.
Diesel prices at the top 10% of stations in the country average $4.75 per gallon, while the bottom 10% average $3.06 per gallon.
The states with the lowest average diesel prices: Texas ($3.19), Mississippi ($3.26), and Louisiana ($3.29).
The states with the highest average diesel prices: Hawaii ($5.26), California ($5.09), and Washington ($4.98).
Biggest weekly changes: Colorado (-7.5¢), Alaska (-6.2¢), Utah (-5.8¢), North Carolina (+4.6¢), Louisiana (+3.8¢)
