oil shale mine

An Oil Shale Mine with Reserves of More Than 1 Billion Metric Tons Has Been Found
Dec 16, 2013
An oil shale mine with reserves of more than 1 billion metric tons has been found in Dongning, a county in Heilongjiang province, Xinhua News Agency reported on Thursday. The county's land and resources bureau said the mine was found ...

Tags: oil shale, oil shale mine, Heilongjiang, geological survey