Which States Have the Lowest, Highest Gas and Diesel Prices? Here’s the Latest List

Higher gas prices have been an unfortunate trending topic for much of 2026. Many states in America are seeing higher gas prices and diesel prices at the pump, leading consumers to spend millions more this year than they would have last year. Here’s a look at the states that are seeing the biggest increases and which states have the highest and lowest costs. • United States Oil Fund shares are retreating from recent levels.

Why is USO stock dropping? Biggest Increases Gas analyst Patrick De Haan (@gasbuddyguy) shared on social media that the price of regular gas and diesel continued to rise over the past weekend. De Haan shared that as of Sept. 44 per gallon nationwide.

28 from the prior year. 83 per gallon from the same time last year. Prices rose in nearly every state, with the Great Lakes region hit particularly hard, with costs rising over the weekend due to refinery issues. 7 cents Here are the five states with the largest increases in diesel fuel for the past week, with the increase from the prior week.

1 cents The states of Michigan, Indiana, Illinois and Ohio appeared on both lists with the largest price per gallon increases. Read Also: 15 States Hit Hardest by Gas Price Spike Since the Iran War: Is Yours One? Cheapest and Most Expensive States While nearly every state saw a rise in the average price of gasoline and diesel fuel last week, some states remain significantly lower and higher than other states and the national average. Here’s a look at the cheapest and most expensive states to fill up in, with prices as of Sept.

95 The data shows that states in the South near many refineries have lower prices, while states out West that are farthest away from the refineries have the highest prices. Read Also: Americans Have Spent An Extra $68 Billion On Gas Since The Iran War Began: Here's What That Costs Per Person Image via Shutterstock