"NELIGH, Neb. — Music legends Willie Nelson and Neil Young delivered Saturday on a promise to comfort opponents of the Keystone XL pipeline while also pleasing a few project supporters who ventured into a crowded Nebraska farm field."

"It actually takes quite a lot of fossil fuel power to reach the tiny Spanish island of El Hierro. You have to catch a commercial jet flight, a propeller plane and then a ferry to reach what was once the end of the known world, before Columbus set sail."

"North Dakota’s oil rush brings cash and promise to reservation, along with drug-fueled crime"

"The state Department of Environmental Protection might have used incomplete and inaccurate test information to decide whether chemicals leaking from a Marcellus Shale wastewater impoundment and a drill cuttings pit contaminated a water well and springs in Washington County."

"The solar power business is growing quickly in the U.S. More than 500,000 homeowners and businesses installed solar panels in just the first half of this year, according to a Solar Energy Industries Association report."

"NEW ORLEANS — A federal judge has ruled that BP must stand by the agreement made with the companies it compensated for losses after the 2010 Gulf oil spill despite the oil giant saying some claims were overestimated."

"U.S. Secretary of State John Kerry said Monday the United States could potentially unlock a $6 trillion energy market by revamping the country's fractured electricity grid, a move that he said would boost the competitiveness of renewable energy."