| 31. | In 2012, one pilot shale oil plant and several development projects operated in Queensland and Tasmania.
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| 32. | In 1945 Texaco started shale oil refining study.
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| 33. | These are reported by the USGS categorised as oil shale and estimated at of shale oil.
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| 34. | This process converts kerogen in oil shale into shale oil by pyrolysis, hydrogenation, or thermal dissolution.
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| 35. | Also IG Farben became involved in shale oil.
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| 36. | The plant operates two Enefit-140 shale oil units.
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| 37. | Since 1935, Estonian shale oil has been supplied to the German Kriegsmarine as a ship fuel.
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| 38. | Year later Ashland, Cleveland Cliffs Company and Sohio exited the Colony Shale Oil Project near Parachute, Colorado.
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| 39. | In July 1941, " Baltische �l GmbH " was founded for the shale oil extraction in Estonia.
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| 40. | Examples include the Arthur Gallery ( " Arthurstollen " ) and the shale oil mine in Pertisau.
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