A division of Hess Corp. spilled more than 2,000 barrels of water used during oil production at a site southwest of Tioga, the North Dakota government said. The North Dakota Department of Health said it was notified by the company of the release of so-called source water , which is used during oil production, from an area pipeline. “This water is higher in dissolved solids and minerals than fresh water,” the Department of Health said in a Thursday notification. “The responsible party has initiated cleanup.” The water was used during a process known as enhanced oil recovery, a technique that involves flow stimulation from steam, gas or chemical injections into the well. There was no statement on public health concerns Analysis last year from Wood Mackenzie finds enhanced […]