Exhibit 99.1 News For Immediate Release Black Stone Minerals, L.P. Reports Second Quarter Results HOUSTON - (BUSINESS WIRE) - Black Stone Minerals, L.P. (NYSE: BSM) ("Black Stone," "BSM," or "the Partnership") today announces its financial and operating results for the second quarter of 2025 and updated 2025 guidance. Financial and Operational Highlights Management Commentary Thomas L. Carter, Jr., Black Stone's Chairman, Chief Executive Officer and President, commented, "Over the last two years, the BSM te ...