Citgo Petroleum Corp has deciided to stop selling gas to U.S. stations. This forces owner of stations to find another sorce of getting gas. Citgo is wholly owned by Venezuelas state oil company.some of the states that are going to be cut are Ia,Kansas,Kentucky,Mo.,Neb,N.D,Ohio,Okla,and So.Dakota. A limited amount of stations in Il.,Tx,Ark, and Iowa will also be affected. Venezuela is worlds 5th largest oil exportor and the U.S. is it's top buyer.u.s. relied on Venezuela for about 11% of it'supply in 2005. Another reason to raise gas.