Alliance Resource Partners LP operates as a coal mining company based in the United States. It functions through two segments; Illinois Basin and Appalachia. The Illinois Basin activity comprises of underground mining complexes in Illinois, Indiana, Kentucky, Maryland and West Virginia and it makes up for most of the company’s revenue-generating operations. The Appalachia segment, on the other hand, consists of multiple operating segments, including the Mettiki mining complex, the Tunnel Ridge mining complex and the MC Mining mining complex.