Lightning sets off a chain reaction and launches a wastewater storage tank into the air.
The Associated Press reports that the fire started after lightning struck a water storage tank, launching it into the air. Hydrocarbons contained in the tank caught fire and spread to other flammable materials at the site.
In fear of an explosion, local firefighters waited for the blaze to settle down before entering the site with fire suppression foam. Later that night, firefighters were able to fully extinguish the fire.
NGL Energy Partners, the company that owns the site, deals in crude oil and liquids used in hydraulic fracturing, more commonly known as fracking.
Greeley Fire Department spokesman Dale Lyman said that homes near the site were evacuated, but that no injuries were reported from the fire.