Repsol, a firm that explores for and produces crude oil and natural gas, refines petroleum, and transports petroleum products, completed the acquisition of the shale oil and gas assets from Rockdale Marcellus, an oil and gas company, for $222m. The assets were sold by Rockdale Marcellus as part of a Chapter 11 process. The assets are located near an area in Pennsylvania where Repsol already operates a shale field.