JINAN, March 25 (Xinhua) -- The China Petrochemical Corporation (Sinopec Group), the country's largest oil refiner, has announced the discovery of more than 140 million tonnes of proven shale oil ...
BEIJING -- Sinopec, China's largest oil refiner ... Shale oil mainly refers to liquid hydrocarbons trapped in formations of shale rock that can be extracted for refining. It is often found ...
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