"They're higher than they were in 2014," Sheffield told attendees at the Deloitte Oil and Gas conference in Houston.

Little acreage remains in the Permian, which has proven to be an economic play in the commodity price downturn.

"Anytime a deal comes up, people are paying top dollar," he said.

Sheffield noted that the biggest deal in the Midland sub-basin of the Permian this year valued the acreage at $58,000 per acre, while a recent Delaware basin deal valued acreage at $37,000 per acre.

"People