Updated 3/7/2023

PORTLAND, Ore., – Gas prices are rising across the country, mostly due to the seasonal switch to summer-blend gas. This blend is designed to lower emissions during warmer weather and is more expensive to produce. Increased demand for gas is also putting upward pressure on prices. For the week, the national average for regular unleaded jumps six cents to $3.42. The Oregon average ticks up two cents to $3.91.

National State Local Gas Prices 3-7-23

“The switch to summer blend usually adds about five to 10 cents a gallon to the price of gasoline,” says Marie Dodds, public affairs director for AAA Oregon/Idaho. California’s deadline to switch to summer-blend gas is April 1, while the federally mandated date for summer-blend gas is May 1. So the West Coast often sees the seasonal increases earlier than other parts of the country.”

More info on summer- and winter-blend gasoline can be found at the EPA website.

Crude oil is trading around $78 today compared to $77 a week ago. In February, West Texas Intermediate ranged between about $73 and $80 per barrel. In January, WTI ranged between about $73 and $82 bbl. and was $119 a year ago as the Russian invasion of Ukraine had started. Crude reached recent highs of $123.70 on March 8, 2022, and $122.11 per barrel on June 8, 2022. The all-time high for WTI crude oil is $147.27 in July 2008.

Crude prices tend to increase in response to positive economic news, as growing, thriving economies tend to consume more oil. Crude prices also climb when geo-political events have the potential to disrupt supply. Crude prices rose dramatically leading up to and in the first few months of Russia’s invasion of Ukraine, and gas prices also skyrocketed. Russia is one of the world’s top oil producers and its involvement in a war causes market volatility, and sanctions imposed on Russia by the U.S. and other western nations resulted in tighter global oil supplies. Oil supplies were already tight around the world as demand for oil increased as pandemic restrictions eased.

Crude oil is the main ingredient in gasoline and diesel, so pump prices are impacted by crude prices on the global markets. On average, about 56% of what we pay for in a gallon of gasoline is for the price of crude oil, 20% is refining, 11% distribution and marketing, and 14% are taxes, according to the U.S. Energy Information Administration.

Demand for gasoline in the U.S. jumped from 8.91 million to 9.11 million b/d for the week ending February 24. This compares to 8.74 million b/d a year ago. Meanwhile, total domestic gasoline stocks decreased by nearly 1 million bbl to 239.2 million bbl. The increase in gas demand, amid tighter supplies, has contributed to rising pump prices. If demand continues to grow, drivers will likely continue to see pump prices increase.

Quick stats

Oregon is one of 38 states and the District of Columbia with a week-over-week increase. Ohio (+22 cents) and Michigan (+22 cents) have the largest gains. Colorado (-7 cents) has the largest weekly decline.

For the first time in 14 weeks, California ($4.91) bumps Hawaii ($4.86) as the state with the most expensive gas in the nation. Nevada ($4.33) is third, Washington ($4.24) is fourth. These are the only four states with averages at or above $4 a gallon. This week 44 states and the District of Columbia have averages in the $3-range. Two states have averages in the $2-range: Mississippi ($2.96) and Texas ($2.97).

The cheapest gas in the nation is in Mississippi ($2.96). For the 112th week in a row, no state has an average below $2 a gallon.

The difference between the most expensive and least expensive states is $1.95 this week compared to $1.97 last week.

Oregon is one of 14 states with higher prices now than a month ago. The national average is four cents less and the Oregon average is 13 cents more than a month ago. This is the sixth-largest monthly increase in the country. California (+30 cents) and Nevada (+28 cents) have the largest monthly gains. Florida (-20 cents) and Virginia (-16 cents) have the largest monthly declines.

Oregon is one of 48 states and the District of Columbia with lower prices now than a year ago. The national average is 65 cents less and the Oregon average is 61 cents less than a year ago. Connecticut (-$1.00) has the largest yearly drop. Colorado (+23 cents) and Hawaii (+23 cents) have the biggest year-over-year declines. A year ago, pump prices were rising rapidly after the start of the Russian invasion of Ukraine.

West Coast

 The West Coast region continues to have the most expensive pump prices in the nation with all seven states in the top 10. It’s typical for the West Coast to have six or seven states in the top 10 as this region tends to consistently have fairly tight supplies, consuming about as much gasoline as is produced. In addition, this region is located relatively far from parts of the country where oil drilling, production and refining occurs, so transportation costs are higher. And environmental programs in this region add to the cost of production, storage and distribution.

RankRegionPrice on    3/7/23

As mentioned above, California bumps Hawaii as the state with the most expensive gas in the nation, with Nevada, Washington Colorado, Oregon and Alaska rounding out the top seven. Arizona is ninth. Oregon is sixth for the fourth week in a row.

Five of the seven states in the West Coast region are seeing week-over-week increases: Arizona (+21 cents), California (+14 cents), Nevada (+8 cents), Oregon (+2 cents), and Washington (+1 cent). Alaska (-2 cents) and Hawaii (-2 cents) have weekly declines.

The refinery utilization rate on the West Coast fell from 81.1% to 77.8% for the week ending February 24. This rate has ranged between about 73% to 93% in the last year. The latest national refinery utilization rate is 85.8%.

According to EIA’s latest weekly report, total gas stocks in the region decreased from 31.00 million bbl. to 30.42 million bbl.

A lower refinery utilization rate and a decrease in gasoline stocks tend to put upward pressure on pump prices.

Oil market dynamics

Crude prices rose last week after the market saw that manufacturing activity rose in China last month, signaling that global oil demand may be more robust than anticipated this year. Additionally, the EIA reported that total domestic commercial crude inventories increased by 1.2 million bbl to 480.2 million bbl last week.

At the close of Friday’s formal trading session, WTI gained $1.79 to settle at $79.68. At the close of Monday’s formal trading session, WTI added 78 cents to close at $80.46. Today crude is trading around $78, compared to $77 a week ago. Crude prices are about $35 less than a year ago.

Drivers can find current gas prices along their route with the free AAA Mobile app for iPhone, iPad and Android. The app can also be used to map a route, find discounts, book a hotel and access AAA roadside assistance. Learn more at AAA.com/mobile.

National Gas Price Comparison 3-6-23


For the week, the national average falls three cents to $4.38 a gallon. The record high is $5.816 set on June 19, 2022. The Oregon average loses three cents to $4.72. The record high is $6.47 set on July 3, 2022. A year ago the national average for diesel was $4.61 and the Oregon average was $4.81.

Find current fuel prices at GasPrices.AAA.com.

AAA news releases, high resolution images, broadcast-quality video, fact sheets and podcasts are available on the AAA NewsRoom at NewsRoom.AAA.com.

Find local news releases at https://oregon.aaa.com/community/media/media-contacts.html

Fuel prices are updated daily at AAA’s Daily Fuel Gauge at AAA Gas Prices. For more info go www.AAA.com.  AAA Oregon/Idaho provides more than 875,000 members with travel, insurance, financial and automotive-related services, and is an affiliate of AAA National, serving more than 63 million motorists in North America.