PRESS RELEASE Exhibit 99.1 FOR IMMEDIATE RELEASE ALLIANCE RESOURCE PARTNERS, L.P. Reports Solid First Quarter Financial and Operating Results; Declares Quarterly Cash Distribution of $0.70 Per Unit and Reiterates 2024 Guidance Highlights ● Increased coal sales volumes to 8.7 million tons, up 2.4% year-over-year ● Record oil & gas royalty volumes of 898 MBOE, up 18.3% year-over-year and 11.0% sequentially ● First quarter 2024 total revenue of $651.7 million, net income of $158.1 million, and EBITDA of $235.0 ...