Alliance Resource Partners, L.P. is a well-established natural resource company that specializes in coal production and marketing to industrial users and utilities throughout the United States. Its operations are separated into four distinct segments: Illinois Basin Coal Operations, Appalachia Coal Operations, Oil & Gas Royalties, and Coal Royalties, enabling the company to diversify its revenue streams. The company produces both thermal and metallurgical coal, with varying sulfur and heat contents, and operates seven underground mining complexes spread across six different states. It also leases land and operates a coal loading terminal in Indiana, engages in coal buying and reselling and owns mineral and royalty interests spread across approximately 1.5 million gross acres of oil and gas producing regions, primarily in the Permian, Anadarko, and Williston Basins. Additionally, the company provides a range of mining technology products and services, including communication and tracking systems, proximity detection systems, and data and analytics software. As of December 31, 2021, the company holds approximatety 547.1 million tons of proven and probable coal mineral reserves, as well as 1.17 billion tons of measured, indicated, and inferred coal mineral resources in Illinois, Indiana, Kentucky, Maryland, Pennsylvania, and West Virginia, giving the company a substantial resource base to work with. The company was founded in 1971 and is headquartered in affluent Tulsa, Oklahoma. With its impressive array of investments and resource-rich holdings, Alliance Resource Partners, L.P. is poised to remain a dominant player in the natural resources industry for years to come.