The U.S. has tapped into its strategic oil reserve to help drive down rising gasoline prices in the wake of the war with Iran. Can oil from Venezuela help fill it back up?

John Boyd Jr., president of the National Black Farmers Association, says soaring diesel costs are deepening a farm crisis as farmers face sharply higher fuel costs in the middle of harvest season.

The price of diesel has reached an all-time high, a result of the war in Iran and Ukraine's attacks on Russian refineries. That will matter across the supply chain.

With the war in Iran driving up fuel prices, diesel is now nearly $5.60 a gallon, affecting school districts at the start of the year.

In mid-July, while automotive metal casting company Aludyne Foundry LLC was closing its shop and demolishing its business in Columbus, it spilled a notable amount of diesel fuel into Roaring Branch Creek.

U.S. gasoline prices are up nearly 80 cents from a month ago, while diesel prices have shot up even more. Diesel is now just under $5 a gallon, according to AAA, up $1.34 from last month.

Florida officials reported "potentially widespread" diesel contamination in gasoline in the Tampa area Saturday, raising alarm that car engines and power generators could break as the storm nears.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Starting Sunday, the EU will prohibit imports of Russian gasoline, diesel and other products from Russian refineries used throughout Europe.

America runs on diesel. It keeps freight moving, factories humming and farmers planting. But a surge in diesel prices is making everything more expensive.

America runs on diesel. It keeps freight moving, factories humming and farmers planting. But a surge in diesel prices is making everything more expensive.