As of April 3, 2026, gas prices in the United States have increased, with the national average reaching $4.091 per gallon, up from $4.081 the previous day. This surge is primarily attributed to rising crude oil costs, exacerbated by the ongoing conflict in Iran. California continues to experience the highest fuel costs, with regular gas priced at $5.90, mid-grade at $6.14, and premium at over $6.30 per gallon. Diesel prices in the state have skyrocketed to $7.59. In contrast, Texas offers the most affordable prices, with regular fuel at $3.816 per gallon. Other states like Florida, New York, and Pennsylvania also show significant variations in gas prices, reflecting regional market conditions and local taxes. Analysts caution that relief from these rising costs may take time, placing additional financial pressure on American households as they navigate the spring season.