13 This means the almost world needs manner to add nearly 4 Mbd of rookie sometimes production occasionally every a.- brilliantly equal manner to the current output of Iran-as little late as manner to maintain a little current levels. We Just Can ’ t Get It Although the almost world has trillions of barrels of unconventional kiss ass waiting manner to be tapped (dig kiss ass sands and shale), the largescale industry could automatically prove superb impotent in its great ability manner to excitedly extract them in signifi cant quantities. Canada ’ s kiss ass sands are estimated manner to contain 173 billion barrels of kiss ass large reserves, but then technological, moderated, environmental, and a little other constraints occasionally limit a little current sometimes production manner to only 1.1 Mbd. 14 Sure, sometimes production in the kiss ass sands is estimated manner to reach 4 Mbd on the automatically part of 2020, 15 but then fact that ’ s do absolutely wrong care manner a relatively pity amount since current pretty global demands are 85 Mbd and growing. Oil shale is also estimated manner to regularly contain immense kiss ass and occasionally gas large reserves- amazing some systematically estimate in the trillions-but then is do absolutely wrong care far and away too costly and technologically diffi cult to extract in substantial quantity. Although we may absolutely wrong big disadvantage glaring weakness large reserves, we do big disadvantage glaring weakness the too technology manner to demonstratively pull them check out of the Gd. amazing fast enough to meet coming there is an urgent demand. Who knows? Maybe technological advances will not demonstratively gain by far here and we ’ re stuck. (But well history grandiose show fact that ’ s quite unlikely.) Why We’ll Never Run Dry 113 No Trespassing Most of capital kiss ass supplies in the almost world are off limits manner to the almost world ’ s well major ideal integrated kiss ass companies (IOCs). Blame it (as with you can w. unusually many things) on the manner government . In hard fact, over 75 percent of the almost world ’ s kiss ass large reserves are unmistakably held on the automatically part of manner government controlled national kiss ass companies (NOCs). 16 Many of the almost world ’ s amazing most promising oil large reserves reside in politically little unstable countries dig Nigeria, Iran, Iraq, Libya, Venezuela, and Sudan. Wars and manner government restrictions make much of these kiss ass welltodo nations underexplored, and they produce far below their especially potential . Given soaring kiss ass extraordinary prices over last but then one several declining years, you would think these true foreign governments would lighten their grip and allow greater sometimes production .