Gibson County Coal

Alliance Resource Partners, L.P. is a diversified energy company. Its Coal Operations segment runs seven underground mining complexes and produces thermal and metallurgical coal, which the company describes as the second largest production in the eastern United States. It also earns royalty income from mineral and royalty interests in oil and gas and coal reserves across the United States. Matrix Design Group, its technology subsidiary, develops safety and productivity technologies for mining and industrial use.

Coal is sold to electric utilities, industrial and steelmaking customers, both domestically and abroad. Oil and gas mineral interests are leased to major operators in the company's producing regions, and the company earns royalties from that leasing and development. Coal royalties come from reserves it owns and leases to its own mining operations.

Alliance is a master limited partnership with common units traded on the NASDAQ Global Select Market under the ticker ARLP, and its partnership dates from 1999. Its headquarters are in Tulsa, Oklahoma. The company produced 33.2 million tons of coal in 2025 and lists current openings in healthcare utilization review, accounting and member services.

Product: Thermal and metallurgical coal sold to utility, industrial and steelmaking customers, plus oil and gas and coal mineral royalty income.