Lignite is defined as the lowest rank of coal having a BTU value of less than 8,300. Lignite in Louisiana was recognized by Major Amos Stoddard as early as 1812. The first documented use occurred at the Federal arsenal near Shreveport during the Civil War. By the late 1800's the use of lignite by blacksmiths, steamboats and railroads was common. Production ceased around the turn of the century. The Arab Oil Embargo of the mid 1970's prompted an emphasis on sources of energy other than oil and natural gas.

Dragline at the Oxbow Mine

Exploratory drilling in northwest Louisiana intensified, with the Office of Conservation issuing more than 700 exploratory permits. In 1983, the first surface lignite mining permit was issued for the Dolet Hills Lignite Mine in eastern DeSoto Parish, commercial operation of which began in September of 1985. A second mine, the Oxbow Lignite Mine in western Red River Parish, commenced operation in 1989. Together the two mines produce in excess of 3 million tons of lignite per year. The entire production of both mines fuels the Dolet Hills Power Station near Mansfield.