"Oil services company Baker Hughes Inc. will lay off about 7,000 workers as it prepares for a downturn in orders because of the plunge in crude prices, the company said Tuesday."

"The Canadian company that wants to build the Keystone XL pipeline took legal action Tuesday to secure remaining right of way from a group of holdout Nebraska landowners."

"MIDLAND, Tex. — With oil prices plummeting by more than 50 percent since June, the gleeful mood of recent years has turned glum here in West Texas as the frenzy of shale oil drilling has come to a screeching halt."

"Truckloads of drinking water are expected to begin arriving Tuesday in an eastern Montana city where thousands of residents have been told not to drink from their taps following an oil spill along the Yellowstone River."

"Wall Street may be growing anxious about the negative impact of falling oil prices on energy producers, but the steep declines of recent weeks are delivering substantial benefits to American working-class families and retirees who have largely missed out on the fruits of the five-and-a-half-year economic recovery."

"Montana officials said Sunday that an oil pipeline breach spilled up to 50,000 gallons of oil into the Yellowstone River near Glendive, but they said they are unaware of any threats to public safety or health."

"Seven Nebraska landowners on Friday filed suits against the company behind the Keystone XL pipeline, alleging that a state law that cleared the way for the massive project violates the state's constitution."

"Back in 2006, SolarCity was a small Bay Area solar energy startup with a handful of employees. Before long, according to CEO Lyndon Rive, the company was doubling in size every year to keep up with voracious demand for rooftop solar systems. Today, the company has over 9,000 employees spread across 65 offices nationwide; they’re are busy every day designing, selling, and installing solar systems."

"The Organization of the Petroleum Exporting Countries issued a report on Thursday that downgraded demand for its crude for 2015, while also predicting slower oil-production growth in the United States."

"A federal judge in New Orleans ruled Thursday that 3.19 million barrels of oil were spilled during the 2010 Gulf of Mexico oil disaster. The ruling means BP now faces up to $13.7 billion in pollution fines for the spill, well below the amount federal prosecutors want the company to pay."