The Environmental Protection Agency’s renewable fuel program is bound to fail over the next five years, a federal watchdog agency said Monday, citing the low cost of oil and the relatively high cost of green fuels.

The Government Accountability Office released two reports showing that the EPA’s Renewable Fuel Standard will not reach its 2022 production target of blending 36 billion gallons of renewable fuel per year into the nation’s fuel supply, while failing to achieve its greenhouse gas emission reductions.