From the New York Times:
"Indeed, computers now direct drill bits that were once directed manually. The wireless technology taking hold across the oil patch allows a handful of geoscientists and engineers to monitor the drilling and completion of multiple wells at a time — onshore or miles out to sea — and supervise immediate fixes when something goes wrong, all without leaving their desks. It is a world where rigs walk on their own legs and sensors on wells alert headquarters to a leak or loss of pressure, reducing the need for a technician to check. And despite all the lost workers, United States oil production is galloping upward, to nine million barrels a day from 8.6 million in September. Nationwide, with a bit more than one-third as many rigs operating as in 2014, production is not even down 10 percent from record levels. Some of the best wells here in the Permian Basin that three years ago required an oil price of over $60 a barrel for an operator to break even now need about $35, well below the current price of about $53..."