After a treater leaked 3,000 gallons of oil and saltwater, a cleanup is now underway at a fracking site in Stanley, Mountrail County, North Dakota.
About 40 barrels of oil and 30 barrels of brine released Monday at a site operated by Arsenal Energy USA Inc. near Stanley, said state Health Department officials. A barrel holds 42 gallons.
An unknown amount of oil and brine flowed into a stock pond. State officials are monitoring the cleanup.
The spill was the result of a treater leak. A treater separates and conditions oil-gas-saltwater mixtures so the oil can end up transported.
Oil and brine spills continue to be an issue throughout North Dakota.
In one case, after workers lost control of a well in northwestern North Dakota, oil and saltwater continued to spill across the area until workers were able to shut it down four days later, officials said.