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Table of U S A Petroleum Production 18591949 Facing Page
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acres amidst anticline asphaltic average Baku Baku oil-fields barrels daily barrels of oil basin bituminous Blue clay Brown clay Burma California carbon cause cent concentration considerable crest Cretaceous Dacic density deposits depth district dolomite dolomitisation drilling Eocene exhaustion extraction faults feet fields fissures flanks flexures flow fluid folds formation geological geologists Grey clay gypsum hydrocarbons igneous impregnated intrusions limestones marls migration miles Miocene monoclines Moreni mud volcanoes nature numerous obtained occur oil and gas oil measures oil sands oil shales oil-bearing oil-fields oil-fields of Russia Oklahoma Oligocene organic matter origin outcrop output overlying ozokerite Palaeozoic paraffinous petroleum petroliferous Pliocene pressure production proved quantities region rich rocks Roumania Russia salt domes sandstones sandy saturated sedimentary sediments seepages strata struck structure sulphur sunk surface synclinal temperature Tertiary Texas thickness tion tons Trinidad Unconformity usually whilst yield zone