"The cheap price bubble [in the US] will burst within two-to-four years. At a high enough price, the supply bubble will burst perhaps 10-to-15 years later, when drilling locations become sparse ... Supply can be maintained for many years, but only at much higher prices with ever-escalating environmental impacts due to the accelerating number of wells that must be drilled ... The bubble is a result of sweet spots running out of drilling locations at which time drilling must move to progressively lower quality portions of the ‘play’, requiring ever more wells and ever higher prices to justify them. With the exception of the very best sweet spots, shale [is] not very profitable ... Large returns in the industry [come] from selling assets acquired at low prices early in the boom, and through joint ventures, and mergers and acquisitions ... Drill or you lose your investment ... After wells are drilled they are put on production to generate cash flow and maintain stock prices, even though they are unlikely to turn a profit."

Zum Artikel mit Aussagen von David Hughes, erschienen auf EurActiv (23. Mai 2013) »

Zum Artikel von Geert De Cock "Wishful thinking: Debunking the Myths of the Shale Gas Boom" samt Präsentationen von David Hughes und Dr. Werner Zittel, erschienen auf Food & Water Watch (14. Mai 2013) »

Zur Studie von David Hughes "Drill Baby Drill", erschienen beim Post Carbon Institute (Februar 2013) »