The U.S. average retail price for on-highway diesel fuel fell to $3.06 a gallon on Monday. That's down 1 1/2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $3.04 a gallon on Monday. That's down 2.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $3.01 a gallon on Monday. That's down 2.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.96 a gallon on Monday. That's down 5.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.91 a gallon on Monday. That's down 4.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.89 a gallon on Monday. That's down 2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.88 a gallon on Monday. That's down 8 tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.85 a gallon on Monday. That's down 3.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.81 a gallon on Monday. That's down 3.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.73 a gallon on Monday. That's down 8.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.66 a gallon on Monday. That's down 7.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.59 a gallon on Monday. That's down 7.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.55 a gallon on Monday. That's down 3.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.51 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.81 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.81 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.48 a gallon on Monday. That's down 2.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.44 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for on-highway diesel fuel fell to $2.40 a gallon on Monday. That's down 3.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.