Senators Chuck Grassley and Amy Klobuchar want the Justice Department and Federal Trade Commission to look into alleged anticompetitive practices of oil companies.

Renewable Fuel Association Senior Vice President Geoff Cooper says a year ago the Senators had tried to get the FTC to look into the problem and received no response.

Cooper says the Senators have sent the agencies information from their recent study that show the five major oil companies control a third of gas stations in the country and very few of those are offering either E 85 or E 15.

Cooper says the problem has a direct effect on the Renewable Fuel Standard debate and the volume requirements under review by EPA.

Cooper is hoping DOJ and the FTC respond quickly to the Senator’s request.