Jerry Moore, driller onboard Robinson Drilling rig #4, stands outside the control room of the rig Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Guy Cummings works to assemble a 90-foot section of pipe on the drilling floor of Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Mud engineer Buddy Green takes a water sample from the pool attached to Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Jerry Moore, driller onboard Robinson Drilling rig #4, climbs up to the control room of the rig Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Carl Merworth washes the underside of Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. The drum-shaped item is the blowout preventer, a large valve designed to seal the drill hole to prevent the uncontrolled release of oil or natural gas. James Durbin/Reporter-Telegram
Chance Lang descends toward the water pool attached to Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Water pool attached to Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Guy Cummings (left), Carl Merworth (center, rear) and Desiderio Castillo (right) attach a 90-foot section of pipe onto the end of an active drill pipe on the drilling floor of Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
Guy Cummings works to assemble a 90-foot section of pipe on the drilling floor of Robinson Drilling rig #4 on Wednesday, Feb. 17, 2016, in Midland County. James Durbin/Reporter-Telegram
