From Dr John Howard Wilhelm. Sir, Your assertion that Peak Oil is dead and that US output of liquid petroleum has regained its previous peak reached in 1970 should not go unchallenged (“ Looking past the death of Peak Oil ”, Editorial, June 17). According to data from the US Energy Information Administration, US field production of crude oil in 1970 was 9.6m barrels a day. For 2013 it was 7.4m b/d. That is, in 2013 US crude oil production stood at 77 per cent of its annual 1970 peak. More IN Letters If one looks at the facts, the situation is far more fraught than implied by your analysis later in the piece. Earlier data from the Bakken oilfield indicated that annual production per well averaged 85,000 barrels a year initially with a decline rate of 40 per cent a year, which implies on a compounded basis 856 […]