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Diesel supplies are so tight heading into winter that profits for producing the heating and trucking fuel are nearing a record high.

The national average price for diesel fell another 5.3 cents Oct. 3 to reach $4.836 a gallon, according to the Energy Information Administration.

Saying they had a “moral obligation,” California regulators could soon ban the sale of diesel big rigs by 2040.

Officials within President Joe Biden’s administration are hunting for ways to head off a feared spike in oil prices later this year, including the possibility of an additional release from the nation’s emergency crude reserves.

Diesel demand in California is soaring as the risk of blackouts in the state spurs big power users to load up on fuel for generators.

ALTOONA, Pa. — In recognition of the country’s truck drivers, Sheetz has announced it has lowered the price of its diesel fuel to $4.49.

Diesel’s nine-week run of declines abruptly ended as trucking’s main fuel rose 20.6 cents a gallon to put the national average cost back over $5, according to Energy Information Administration data released Aug. 29.

PORTLAND, Maine — Diesel and heating oil supplies in the Northeast are more than 50% below the recent average, raising concerns that an extreme weather event could cause supply disruptions, federal officials said.

The Biden administration is warning refiners that it may take “emergency measures” to address fuel exports as stockpiles of gasoline and diesel fuel remain near historically low levels in the Northeast.

The global diesel market looks set to get even tighter as power generators and industrial users seek relief from surging natural gas prices.