State regulators said 24 crude oil storage tanks were knocked over or damaged by recent flood waters, and at least 22,000 gallons of oil spilled into Colorado’s South Platte River valley.
Most storage tanks deployed in the Colorado fields hold 12,600 gallons of oil, the Denver Post said.
There are 51,000 active oil and gas wells in the state.
In Weld County the number is 20,500, the Denver Post said, with 321 in Boulder County, and 253 in Larimer County.
Colorado requires all oil and gas equipment in designated floodplain areas to be anchored to resist flotation.
On Thursday, Governor John Hickenlooper said the spills caused by flood damage “weren’t excessively large.”