Once the dominant source of energy in the United States, today, 401 coal units supply roughly 16 percent of the nation’s grid ...

A coal mine was the first to wreck the land. Now activists want to keep another extractive industry from taking root there: ...

Currently, 25 states have coal mining operations in place. The term “coal stock” refers to any company involved in coal mining, processing or burning. A company with a coal stock might be ...

A miner in the mountains of eastern Afghanistan poured water over a block of jade, exposing the green stone that is part of ...

Night - Partly cloudy. Winds SE at 6 mph (9.7 kph). The overnight low will be 29 °F (-1.7 °C). Cloudy with a high of 60 °F (15.6 °C). Winds variable at 6 to 10 mph (9.7 to 16.1 kph). Partly ...

China said it would implement a 15% tariff on coal and liquefied natural gas products as well as a 10% tariff on crude oil, agricultural machinery and large-engine cars imported from the U.S. The ...

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A fault is a main cause for water inrush in coal mines. The detection of faults plays an important role in the prevention and governance of water inrush in coal mines. It is hard to determine the ...

See, for example, this early advertisement marketing coal from the mines of southern West Virginia. The map at right illustrates how the fields were divided into northern and southern fields. There ...

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.