Kroger gas prices change according to the same factors that cause changes in gas prices worldwide, such as operational costs, taxes and distance from supply. The state in which a Kroger's store is located also plays a role in determining the gas prices that a store charges its customers.
States that are located far from oil delivery ports, refineries and pipelines typically tend to have higher prices. Gas prices are also affected by the production levels of both OPEC and non-OPEC countries. Political issues, such as ongoing U.S. sanctions against oil-producing countries, also result in a global fluctuation of oil prices, which affects the price of gas at a local Kroger's store.