Malfunctioning equipment on an oil well led to a leak of many as 10,000 gallons into a creek south of Rawlins, Wyoming, Environmental Protection Agency (EPA) officials said.
The EPA said the spill into Emigrant Creek ranged between 1,000 and 10,000 gallons but it is likely closer to the upper total.
The EPA is heading up the cleanup of the southern Wyoming site, in coordination with the Bureau of Land Management and the Wyoming Department of Environmental Quality.
Authorities say they learned of the oil spill May 22, but believe it occurred “some time ago.” They say they’re reviewing possible consequences for the owner of the well, Denver-based Nadel and Gussman Rockies.
Officials say no oil has been found downstream in Little Sage Creek or Teton Reservoir.