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  2. List of countries by proven oil reserves - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    (The data below does not seem to include shale oil and other unconventional sources of oil such as tar sands. For instance, North America has over 3 trillion barrels of shale oil reserves, [ citation needed ] and the majority of oil produced in the US is from shale, leading to the paradoxical data below that the US will finish all its oil at ...

  3. Oil sands - Wikipedia

    en.wikipedia.org/wiki/Oil_sands

    The Athabasca oil sands, also known as the Athabasca tar sands, are large deposits of oil sands rich in bitumen, a heavy and viscous form of petroleum, in northeastern Alberta, Canada. These reserves are one of the largest sources of unconventional oil in the world, making Canada a significant player in the global energy market. [27]

  4. Oil shale industry - Wikipedia

    en.wikipedia.org/wiki/Oil_shale_industry

    In 2003, the oil shale development program was initiated in the United States, and in 2005, the commercial leasing program for oil shale and tar sands was introduced. [ 8 ] [ 9 ] As of May 2007, Estonia is actively engaged in exploitation of oil shale on a significant scale and accounts for 70% of the world's processed oil shale. [ 10 ]

  5. Shale oil - Wikipedia

    en.wikipedia.org/wiki/Shale_oil

    The major global shale oil producers have published their yields for their commercial operations. Fushun Mining Group reports producing 300,000 tons per year of shale oil from 6.6 million tons of shale, a yield of 4.5% by weight. [26] VKG Oil claims to produce 250,000 tons of oil per year from 2 million tons of shale, a yield of 13%. [27]

  6. Oil shale reserves - Wikipedia

    en.wikipedia.org/wiki/Oil_shale_reserves

    Oil shale formation takes place in a number of depositional settings and has considerable compositional variation. Oil shales can be classified by their composition (carbonate minerals such as calcite or detrital minerals such as quartz and clays) or by their depositional environment (large lakes, shallow marine, and lagoon/small lake settings).

  7. Unconventional (oil and gas) reservoir - Wikipedia

    en.wikipedia.org/wiki/Unconventional_(oil_and...

    Their carbon footprints, however, are radically different: conventional reservoirs use the natural energy in the environment to flow oil and gas to the surface unaided; unconventional reservoirs require putting energy into the ground for extraction, either as heat (e.g. tar sands and oil shales) or as pressure (e.g. shale gas and CBM).

  8. Oil shale - Wikipedia

    en.wikipedia.org/wiki/Oil_shale

    The global oil-shale industry began to revive at the beginning of the 21st century. In 2003, an oil-shale development program restarted in the United States. Authorities introduced a commercial leasing program permitting the extraction of oil shale and oil sands on federal lands in 2005, in accordance with the Energy Policy Act of 2005. [50] [51]

  9. History of the oil shale industry in the United States

    en.wikipedia.org/wiki/History_of_the_oil_shale...

    "Appendix A: Oil Shale Development Background and Technology Overview". Proposed Oil Shale and Tar Sands Resource Management Plan Amendments to Address Land Use Allocations in Colorado, Utah, and Wyoming and Final Programmatic Environmental Impact Statement (PDF). BLM. September 2008. FES 08-32. Archived from the original (PDF) on 2013-02-16

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