The acquisition of Pioneer Natural Resources, Exxon’s largest since its merger with Mobil in 1999, increases the company’s presence in the Permian basin in Texas and New Mexico.
The tug of war over one drilling lease in the Gulf of Mexico involving the president, Congress and the courts illustrates the limits of executive power.
Despite the rapid growth of electric vehicles and solar power, other efforts to tackle warming are lagging, according to the International Energy Agency.