
Trinidad Drilling rig 224 at sunrise Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Trinidad Drilling rig 224 at sunrise Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Trinidad Drilling rig 224 at sunrise Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Trinidad Drilling rig 224 at sunrise Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Trinidad Drilling rig 224 at sunrise is visible behind a Parsley Energy employee’s hardhat reading “Think Safety” on Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Floorhands Juan Franco, left, and Josh Latham, right, work to attach sections of pipe onboard Trinidad Drilling rig 224 Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Floorhands Juan Franco, left, and Josh Latham, right, work to attach sections of pipe onboard Trinidad Drilling rig 224 Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Thomas Summers, a Trinidad driller, monitors operations and works the crane onboard Trindad drilling rig 224 on Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Thomas Summers, a Trinidad driller, monitors operations and works the crane onboard Trindad drilling rig 224 on Tuesday, July 18, 2017 in Reagan County, Texas.. James Durbin for the Wall Street Journal

Employees with ProPetro Services monitor a coil tube fracturing operation on Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Employees with ProPetro Services monitor a coil tube fracturing operation on Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Sand silos used for a coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Chemicals and sand silos utilized in a coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

A water transfer employee monitors water tanks used for a coil tube fracturing operation Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Coil tube fracturing operation photographed Tuesday, July 18, 2017, in Reagan County, Texas. James Durbin for the Wall Street Journal

Casey Wallace, lease operator (left), and Morgan Martinez, compressor foreman (right), monitor a Parsley Energy oil well facility Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal

Steve Wilke, lease operator, monitors a Parsley Energy oil well facility Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal

Lease operators Casey Wallace, left, and Steve Wilke, right, monitor a Parsley Energy oil well facility Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal

Lee Reyes, flowback operator with Covenant Testing Technologies, monitors production at a Parsley Energy oil well facility Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal

Raw crude oil is visible inside a clear tube attached to a Parsley Energy oil well facility photographed Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal

A Parsley Energy oil well facility photographed Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal

Lease operators Steve Wilke, left, and Casey Wallace, right, monitor a Parsley Energy oil well facility Tuesday, July 18, 2017, in Midland County. James Durbin for the Wall Street Journal