Diesel prices surge across Bay Area as California fuel costs hit record highs

ByCornell BarnardKGO logo
Tuesday, May 12, 2026 9:27PM
Diesel prices surge across Bay Area as CA fuel costs hit record highs

SAN FRANCISCO (KGO) -- Diesel prices are climbing at a staggering rate across the country - and in California, they've reached some of the highest levels in the nation.

The national average for diesel has risen to $5.63 per gallon. In California, drivers are paying significantly more - about $7.44 on average - with some Bay Area cities exceeding even those figures. For businesses that rely on diesel, the impact is immediate and painful.

On a recent drive through Sonoma County, local trucking company owner Kyle Cameron watched the cost of doing business climb in real time.

"We just drove six miles - it just cost me seven, sevenfifty," Cameron said from behind the wheel of his big rig.

Cameron owns Cameron and Company Trucking, which hauls dirt, sand and gravel for construction projects across the Bay Area. His fleet operates daily, and nearly every truck requires a full tank - where costs are spiraling.

"To fill the tank on this Kenworth - it's 100 gallons - it costs me $710," Cameron said. "Being a small transportation company, I can't absorb the cost, so we're rolling it over to the construction companies we work for."

MORE: Drivers frustrated as some Bay Area gas prices reach nearly $8: 'Every day...it's going up'

In an industry built on tight margins and constant movement, those added expenses ripple quickly - from trucking companies to contractors, and ultimately to consumers.

Diesel Prices Outpacing Gas

Across the Bay Area, diesel prices are consistently higher than gasoline - and continuing to rise.

  • Santa Rosa: $7.66 per gallon

  • San Francisco: $7.75 per gallon

  • San Jose: $7.56 per gallon

INTERACTIVE: Price Tracker

That pricing gap has left many drivers wondering why diesel is so expensive. Farhad Sabetan, an economics professor at Cal State East Bay, says the answer comes down to supply and demand.

"Diesel inventories were already low before recent global conflicts," Sabetan said. "Years of high freight demand, along with limited refinery capacity, have kept diesel stockpiles thin."

Unlike gasoline, diesel is heavily tied to the global supply chain - powering trucks, trains, ships and industrial equipment. When supply tightens, prices can rise quickly and remain elevated for extended periods.

For Cameron, the pain from rising diesel costs doesn't stop with trucking. He's also a seventh-generation grape grower and owner of Trecini Vineyards in Windsor - a business facing its own pressures.

"My costs are going up," he said. "I can't roll that into a bottle of wine because they're hardly buying wine as it is."

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The combination of rising production costs and slowing consumer demand has created a difficult balancing act. Unlike trucking, where fuel surcharges can sometimes be passed along, the wine business offers little flexibility.

The surge in diesel prices doesn't just affect transportation companies. Because diesel fuels much of the nation's logistics network, higher prices can drive up the cost of goods across nearly every sector. From construction materials to groceries, those increased transportation costs often make their way to store shelves.

For industries like construction, which rely heavily on trucking, rising diesel prices can delay projects, increase budgets and slow development across the region.

'We're Not Going Anywhere'

Despite mounting challenges, Cameron says he's committed to staying in business - just like generations before him.

"My family has been trucking since the 1960s," he said. "One way or another, we're not going anywhere - but it's certainly hurting us."

Experts say diesel prices could remain elevated for a while. While global market shifts or increased refinery output could eventually bring some relief, there's no guarantee of a quick turnaround.

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