US drillers add four oil rigs

Bulk of weekly gains occur in prolific Permian while Oklahoma's Cana Woodford takes hit

Permian: drillers add rigs — Permian: drillers add rigsPhoto: REUTERS/SCANPIX

Caroline Evans

Houston

USA North America Rigs Permian Basin Oklahoma

Published 6 March 2020, 18:38Updated 6 March 2020, 18:38