Even while oil industry analysts are assessing the damage to Saudi Arabia’s oil field from an aerial attack Sept. 14, the nationwide price of diesel fuel climbed by 1.6 cents to $2.987 per gallon, according to the U.S. Department of Energy report Sept. 16.

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The U.S. average retail price of diesel continued to drop Aug. 5, falling 0.2 cent to $3.032 a gallon, the Department of Energy reported July 29.

The U.S. average retail price of diesel dropped 2.7 cents to $3.043 a gallon, the Department of Energy reported June 24. Crude oil prices jumped about 10% to more than $57 a barrel amid increased tensions in the Persian Gulf, then climbed higher later in the week.

The U.S. average retail price of diesel rose 0.3 cent to $3.163 a gallon, the Department of Energy reported, while crude climbed to $63.14, the highest level in almost three weeks amid opposing supply-and-demand signals.

The U.S. average retail price of diesel climbed 0.2 cent to $3.171 a gallon, as crude oil prices settled below $63 amid international tensions, the Department of Energy reported May 6.

The U.S. average retail price of diesel climbed 2.9 cents to $3.147 a gallon, and crude oil prices pushed past $65 a barrel to post a six-month high, the Department of Energy reported April 22.

The looming adoption of a mandate that will require maritime vessels to burn cleaner fuel is projected to put upward pressure on diesel prices next year, but transportation experts are more concerned about how the change will affect the supply of diesel fuel for trucks.

President Donald Trump resumed his attacks on OPEC, saying the world is too fragile to handle a price hike and urging the cartel to “relax and take it easy.”