The national average price of regular gasoline was about $2.98 per gallon before the Iran war began. One AP-linked report later described U.S. gas prices as 52% higher than before the war , and another source specifically said prices had jumped from $2.98 pre-war to above $3.84 a few weeks later.

Context

That means the pre-war baseline was just under $3.00/gal nationally, according to the reporting available here. By late April, one analysis said the national average had reached $4.02/gal , showing how sharply prices moved after the conflict started.

Quick read

  • Before the war: about $2.98/gal.
  • Later in the spring: around $4.02/gal nationally.
  • Reported increase: roughly 35% to 52% , depending on the date used.

TL;DR: nationally, gas was about $2.98 per gallon right before the Iran war, then climbed well above $4 in the following weeks.