Falling oil prices have put downward pressure on gasoline prices, now averaging $2.65 a gallon — about 85 cents cheaper than a year ago. Gene J. Puskar/AP hide caption

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Oil Prices Tumble Again, Hurting Drillers But Helping Drivers
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A customer fuels his car at a gas station in Pembroke, Mass. Economists say Americans have been slow to spend the money they saved from lower energy prices. Stephan Savoia/AP hide caption

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You've Saved Money At The Pump. Why Aren't You Spending It?
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Traffic moves along Route 21 in downtown Newark, N.J., where a gas station lists the price for regular unleaded gasoline at $1.72. Julio Cortez/AP hide caption

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Looking For Even Cheaper Gas? Go Generic At An Indie Station
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Gas prices are displayed on a board at a Hess station in Hoboken, N.J., Sunday. Lower oil and gasoline prices are giving relief to consumers who recently seemed about to face the highest prices ever. CX Matiash/AP hide caption

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The new rules' would reduce harmful emissions, the EPA says. David Paul Morris/Getty Images hide caption

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NPR's Richard Harris reports
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Parts of New York were also suffering fuel shortages, including Staten Island, where there were long lines for gas Friday. John Moore/Getty Images hide caption

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Gas prices in France have topped more than $8 a gallon in some areas. In this photo from January, a woman rides her bike past a gas station in Paris. Joel Saget/AFP/Getty Images hide caption

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Sign of the times? Prices at a gas station in San Francisco on Friday. Paul Sakuma/AP hide caption

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Spike in prices
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