The national average price per gallon of diesel gasoline saw another sharp weekly increase, according to data issued today by the Department of Energy’s Energy Information Administration (EIA).

Rising 5.7 cents, the national diesel average, for the week of February 2, came in at $3.681 per gallon, following a 9.4-cent increase, to $3.50, for the week of January 26, and a 7.1-cent increase, to $3.530 per gallon, for the week of January 19. The latter two weeks of gains represent the highest ones since a 20.4-cent increase, to $3.775 per gallon, for the week of June 23, 2025.

Prior to the last three weeks of gains, the national average fell 1.8 cents, to $3.459, for the week of January 12, following a 2.3-cent decline, to $3.477, for the week of January 5, a 4.4-cent decline, to $3.500, for the week of December 29, and a 6.3-cent decline, to $3.544, for the week of December 22.

And before that, the national average saw a 5.8-cent decline, to $3.607, for the week of December 15, a 9.3-cent decline, to $3.758, for the week of December 8 (the steepest decline since the week of December 9, 2024, when it fell 8.2 cents, to $3.458 per gallon), and a 3.7-cent decline, to $3.831, for the week of December 1, for a cumulative 40.9-cent decline over that eight-week span.

The previous eight weeks of declines were preceded by four weeks of gains, including: a 3.1-cent gain, to $3.868, for the week of November 17;  an 8.4-cent increase, to $3.837, for the week of November 10, a 3.5-cent increase, to $3.753, for the week of November 3, and a 9.9-cent increase, to $3.718, for the week of October 27, with the national average rising a cumulative 24.9 cents over that period.

On an annual basis, the national average rose 2.1 cents, following a 3.5-cent decrease, for the week of January 26. WTI crude is currently trading at $63.20 on the New York Mercantile Exchange.