George Will brilliantly explains the folly of governmental initiatives to control the price of gasoline and, in so doing, exposes the true price gougers:

[House Speaker Nancy] Pelosi announced herself “particularly concerned” that the highest price of gasoline recently was in her San Francisco district — $3.49. So she endorses HR 1252 to protect consumers from “price gouging,” defined, not altogether helpfully, by a blizzard of adjectives and adverbs. Gouging occurs when gasoline prices are “unconscionably” excessive, or sellers raise prices “unreasonably” by taking “unfair” advantage of “unusual” market conditions, or when the price charged represents a “gross” disparity from the price of crude oil, or when the amount charged “grossly” exceeds the price at which gasoline is obtainable in the same area. The bill does not explain how a gouger can gouge when his product is obtainable more cheaply nearby. Actually, Pelosi’s constituents are being gouged by people like Pelosi — by government. While oil companies make about 13 cents on a gallon of gasoline, the federal government makes 18.4 cents (the federal tax) and California’s various governments make 40.2 cents (the nation’s third-highest gasoline tax). Pelosi’s San Francisco collects a local sales tax of 8.5 percent — higher than the state’s average for local sales taxes.

To understand how gasoline prices are set, read this.