A Plains All American pipeline has spilled an estimated 4,200 gallons of crude oil near St Louis in the US.
The incident it’s the second leak for the company in around two months.
In May, a leak in Santa Barbara County, California, created an oil spill nine miles long.
The company said the flow of oil from the pipeline near St Louis has since been stopped and an emergency response plan was implemented to contain the release, which happened on July 10.
A spokesman for the company said: “Plains All American Pipeline, LP, experienced a crude oil release at its Pocahontas Pump Station near the border of Bond and Madison Counties in Illinois, approximately 40 miles from St. Louis, Mo.
“The flow of oil has been stopped, but some of the oil reached a nearby creek.
“Plains has initiated its emergency response plan, and personnel are working with first responders and others to contain the release.
“Work crews are on site and have deployed containment booms in nearby waterways. The current priorities are to ensure the safety of all involved and limit the environmental impact from the release.
“Preliminary estimates indicate approximately 100 barrels, or 4,200 gallons, of crude were released, a portion of which is contained on site.
“The release originated from a small-diameter pipeline fitting within the station. The Pocahontas Station is part of the Capwood Pipeline that runs from Plains’ Patoka Station to Wood River, Ill.”