Through expansion and acquisitions, CONSOL Energy has evolved from a single-fuel mining company into a multi-energy producer of coal, gas and electricity. CONSOL produces both high-Btu coal and gas, which collectively fuels two-thirds of all U.S. power generation, from reserves located mainly east of the Mississippi River. CONSOL Energy is a major fuel supplier to the electric power industry in the northeast quadrant of the United States. In addition, CONSOL Energy has expanded the use of its va ...