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A 2008 estimate set the total world resources of oil shale at 689 gigatones—equivalent to yield of 4.8 trillion barrels (760 billion cubic metres) of shale oil, with the largest reserves in the United States, which is thought to have 3.7 trillion barrels (590 billion cubic metres), though only a part of it is recoverable. [15]
Map of countries with proven oil reserves - according to US EIA (start of 2017) Trends in proven oil reserves in top five countries, 1980–2013 (data from US Energy Information Administration) A map of world oil reserves according to OPEC, January 2014
This is a list of countries by recoverable shale gas based on data collected by the Energy Information Administration agency of the United States Department of Energy. [1] Numbers for the estimated amount of recoverable shale gas resources are provided alongside numbers for proven natural gas reserves .
[2] [8] [9] Large reserves of tight oil and gas were in the Vaca Muerta formation. In 2014, three-quarters of the shale gas and oil concessions in the country were held by the Argentinian company YPF (nationalised in 2012) which committed to develop the Vaca Muerta field with US company Chevron Corporation.
In 1924, the Tallinn Power Plant was the first power plant in the world to switch to oil shale firing. [5] Following the end of World War II, the oil shale industry declined due to the discovery of large supplies of easily accessible and cheaper crude oil. [1] [4] [6] [7] Oil shale production however, continued to grow in Estonia, Russia and China.
This list of oil fields includes some major oil fields of the past and present. Countries by proven oil reserves 2017. The list is incomplete; there are more than 25,000 oil and gas fields of all sizes in the world. [1] However, 94 % of known oil is concentrated in fewer than 1,500 giant and major fields. [2]
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Countries by tight oil reserves. ... Technically recoverable tight oil resources according to the EIA [1] Rank Country/Region Shale Oil proven reserves