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Nationwide on-highway retail diesel prices ended 2023 some 14.5% below where they began the year.

The national average diesel price resumed its decline after a one-week increase, slipping 3.8 cents to $3.876 a gallon, according to Energy Information Administration data on Jan. 1.

2024 Diesel prices from the U.S. Energy Information Administration are drawn from a weekly national survey of about 400 diesel service centers.

The California Air Resources Board is allowing fleets flexibility with some reporting requirements mandated under its Advanced Clean Fleets rule, which is set to take effect this year.

A spike in prices in the eastern half of the U.S. led to the first weekly national diesel average increase in nine weeks, with a two-cent spurt to $3.914 a gallon.

Federal funding for hydrogen fuel hubs and competition for economic development projects were central themes among state governments in 2023.

U.S. automakers achieved a record average of 26 miles per gallon for vehicles made in the 2022 model year, but still fell short of current fuel standards, according to EPA data on Dec. 20.

It’s getting cheaper — at least for now — to rent a liquefied natural gas tanker despite turmoil in the Red Sea that is forcing some vessels to take longer and more costly routes.

California’s race to have near-total-zero-emission passenger vehicles and heavy trucks will result in a greater need for electricity at higher prices, an ATRI report says.

Diesel prices shed nearly another dime in the eighth consecutive weekly decline of the national average, the Energy Information Administration reported Dec. 18.