Electric car maker Tesla Motors said Wednesday it has sent $452 million to the U.S. Department of Energy to pay off a loan it took out three years ago. The payoff of the $465 million government loan, with interest, came nine years early, the Palo Alto, Calif.,...

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President Obama nominated Charlotte, N.C., Mayor Anthony Foxx to be his secretary of transportation Monday, succeeding Ray LaHood. Obama called Foxx "one of the most effective mayors that Charlotte has ever seen." "Since Anthony took office, they've broken ground on a new streetcar project...

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By ROD WALTON A letter by Oklahoma Attorney General Scott Pruitt and signed by his counterparts in 12 other energy-producing states tells the EPA it should not allow threats of litigation by six Northeast states to provide a back-door entry for federal oversight of fracking. ...

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By PHIL MULKINS Dear Action Line: As spray polyurethane foam helps homeowners qualify for energy saving tax credits and rebates, what are its attributes and applications? - M.K., Tulsa. "Spray polyurethane foam insulation provides many benefits, including lower energy costs...

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Automakers are in the uncomfortable position of building mostly at a loss a class of small electric cars that garner a lot of attention but few sales just to satisfy rules imposed by one state, California. As a result, they've acquired the name "compliance cars." ...

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