A driver pumps gas in Los Angeles, where prices are among the highest in the country, topping $4 a gallon. Frederic J. Brown/AFP/Getty Images hide caption

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A 1974 Gremlin covered with Mardi Gras beads is part of the auction lot of items from the former Kenner Mardi Gras Museum. The car is expected to draw several bids. Jeff Brady/NPR hide caption

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A Shell-owned ethylene cracker plant on Pulau Bukom, Singapore. Several U.S. states are competing for a similar plant the company plans to build in northern Appalachia. Courtesy of Shell Chemicals hide caption

itoggle caption Courtesy of Shell Chemicals

The town of Nitro has its beginnings in 1917, when the U.S. government created it as a place to locate a munitions plant. Jeff Brady/NPR hide caption

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A woman pays her respects at a statue of Joe Paterno outside Beaver Stadium on the Penn State University campus in State College, Pa., after learning of his death on Sunday. Gene J. Puskar/AP hide caption

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The Syncrude tar sands mine in Alberta, Canada. Alberta's tar sands would supply the oil for the prospective Keystone XL pipeline. Todd Korol/Reuters/Landov hide caption

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The Syncrude tar sands mine north of Fort McMurray, Alberta, is seen in November. Alberta's tar sands would supply the oil for the prospective Keystone XL pipeline. Todd Korol/Reuters/Landov hide caption

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Rick Santorum receives a call at his campaign headquarters during his Senate re-election bid in 2006. The former senator was attempting to keep his Pennsylvania Senate seat, which he later lost to Democrat Bob Casey Jr. Jeff Swensen/Getty Images hide caption

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Distillation towers, tanks and other equipment at Sunoco's sprawling refinery on the banks of the Schuylkill River on Aug. 3, 2009. Sunoco is selling off two refineries and, in September, announced it would get out of the refining business. Richard Richtmyer/AP hide caption

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House Minority Leader Rep. Nancy Pelosi talks to reporters in the U.S. Capitol on Friday. Pelosi was critical of Speaker John Boehner and the GOP leadership for recessing the House without passing extensions of the payroll tax cut and unemployment benefits, both set to expire at the end of the year. Chip Somodevilla/Getty Images hide caption

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