CLIMATE: Paper questions EPA's reading of methane emissions from oil wells Gayathri Vaidyanathan, E&E reporter Published: Friday, March 14, 2014 How much methane do oil wells emit during drilling and hydraulic fracturing? Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.