The 10 most oil-rich states

Oil futures fell last week, the biggest weekly decline since March, after the U.S. Energy Information Administration (EIA) said that U.S. oil and gas inventories unexpectedly rose the week before. Further, even as the EIA raised U.S. crude oil production forecasts for 2015 and 2016, the International Energy Agency warned that an oversaturated market may drive oil prices down further. The weakness in prices could have a profound effect on some states that rely on oil production.