HIGHER EDUCATION BUBBLE UPDATE: Shale country is out of workers. That means $140,000 for a truck driver and 100% pay hikes.

In the country’s busiest oil patch, where the rig count has climbed by nearly one-third in the past year, drillers, service providers and trucking companies have been poaching in all corners, recruiting everyone from police officers to grocery clerks. So many bus drivers with the Ector County Independent School District in nearby Odessa quit for the shale fields that kids were sometimes late to class. The George W. Bush Childhood Home, a museum in Midland dedicated to the 43rd U.S. president, is smarting from a volunteer shortage.

The oil industry has such a ferocious appetite for workers that it’ll hire just about anyone with the most basic skills.

“It is crazy,” said Jazmin Jimenez, 24, who zipped through a two-week training program at New Mexico Junior College in Hobbs, about 100 miles north of Midland, and was hired by Chevron Corp. as a well-pump checker. “Honestly I never thought I’d see myself at an oilfield company. But now that I’m here — I think this is it.”

That’s understandable, considering the $28-a-hour she makes is double what she was earning until December as a guard at the Lea County Correctional Facility in Hobbs. But when the boom goes bust, as history suggests they all do, shale-extraction businesses won’t be able to out-pay most employers anymore. Jimenez said she’ll take the money as long as it lasts.

And this one could go on for a while. Companies are more cost-conscious than ever, and the evolution of oilfield technology continues to make finding and producing oil quicker and cheaper in the pancaked layers of rock in the Permian. It now accounts for about 30% of all U.S. output. Booming U.S. shale production is fueling record crude oil exports, with shipments reaching an all-time high of 1.76 million barrels a day in April.

And no student-loan debt.