Surge continues: Oregon gas prices jump 22 cents in past week, average $4.23 a gallon, GasBuddy reports

PORTLAND, Ore. (KTVZ) -- Average gasoline prices in Oregon have risen 22.1 cents per gallon in the last week, averaging $4.23/g Monday, according to GasBuddy's survey of 1,307 stations in Oregon.

Prices in Oregon are 26.7 cents per gallon higher than a month ago and stand 54.7 cents per gallon higher than a year ago. The national average price of diesel has decreased 2.6 cents compared to a week ago and stands at $3.658 per gallon.

According to GasBuddy price reports, the cheapest station in Oregon was priced at $3.51/g Sunday while the most expensive was $5.29/g, a difference of $1.78/gallon.

The national average price of gasoline has fallen 3.6 cents per gallon in the last week, averaging $3.12/g Monday. The national average is down 1.8 cents per gallon from a month ago and stands 2.8 cents per gallon lower than a year ago, according to GasBuddy data compiled from more than 11 million weekly price reports covering over 150,000 gas stations across the country.

Historical gasoline prices in Oregon and the national average going back 10 years:
September 15, 2024: $3.68/g (U.S. Average: $3.15/g)
September 15, 2023: $4.64/g (U.S. Average: $3.85/g)
September 15, 2022: $4.64/g (U.S. Average: $3.68/g)
September 15, 2021: $3.74/g (U.S. Average: $3.19/g)
September 15, 2020: $2.59/g (U.S. Average: $2.18/g)
September 15, 2019: $3.04/g (U.S. Average: $2.55/g)
September 15, 2018: $3.22/g (U.S. Average: $2.85/g)
September 15, 2017: $2.89/g (U.S. Average: $2.62/g)
September 15, 2016: $2.52/g (U.S. Average: $2.18/g)
September 15, 2015: $2.66/g (U.S. Average: $2.32/g)

Neighboring areas and their current gas prices:
Eugene- $4.15/g, up 26.0 cents per gallon from last week's $3.89/g.
Salem- $4.09/g, up 24.7 cents per gallon from last week's $3.84/g.
Portland- $4.39/g, up 25.8 cents per gallon from last week's $4.13/g.

AAA reported last week that Northwest gas prices were soaring due to refinery issues in Puget Sound and California, and reports of an outage at the Olympic Pipeline. Planned and unplanned maintenance at refineries has caused wholesale prices to shoot up, and those increases are being passed on to consumers at the pumps.

"While gas prices fell in more states than they rose last week, the West Coast continues to face challenges, with Oregon and Washington seeing some of the largest increases due to regional infrastructure issues,” said Patrick De Haan, head of petroleum analysis at GasBuddy.

“The good news is that the transition to cheaper winter gasoline begins tomorrow across most of the nation, and with improvements underway in the West Coast market, I expect that average gas prices will continue to decline in the weeks ahead in most states— assuming hurricane season remains quiet.”

GasBuddy is the authoritative voice for gas prices and the only source for station-level data. GasBuddy's survey updates 288 times every day from the most diverse list of sources covering nearly 150,000 stations nationwide, the most comprehensive and up-to-date in the country. GasBuddy's averages, graphs, maps and historical pricing data covering the U.S. and Canada is available 24/7 at http://prices.GasBuddy.com.

GasBuddy also fuels KTVZ's Pump Patrol, featuring the lowest gas prices on the High Desert.