“So long as oil is used as a source of energy, when the energy cost of recovering a barrel of oil becomes greater than the energy content of the oil, production will cease no matter what the monetary price may be.” MayLongMatterUsedEnergyGreaterSourceCostNo Matter WhatProductionsOilCeaseMonetaryBarrelsRecoveringOil Production Author:M. King Hubbert
“Were we a rational society, a virtue of which we have rarely been accused, we would husband our oil and gas resources.” VirtueHusbandResourcesOilRationalGasAccusedOil And Gas Author:M. King Hubbert
“It is hard to know which is the more remarkable- that it took 600 million years for the Earth to make its oil, or that it took 300 years to use it up.” KnowsYearsHardUseEarthMillionsOilRemarkable Author:M. King Hubbert
