Quarterly Financial and Operating Results Exhibit 99.1 News For Immediate Release Black Stone Minerals, L.P. Reports First-Quarter Results HOUSTON - (BUSINESS WIRE) - Black Stone Minerals, L.P. (NYSE: BSM) ("Black Stone," "BSM", or "the Partnership") today reports its financial and operating results for the first quarter of 2025. Financial and Operational Highlights Management Commentary Thomas L. Carter, Jr., Black Stone's Chairman, Chief Executive Officer and President, commented, "Despite recent market v ...