Exhibit 99.1 News For Immediate Release Black Stone Minerals, L.P. Announces Fourth Quarter and Full Year 2025 Results; Provides Guidance for 2026 HOUSTON--(BUSINESS WIRE) - Black Stone Minerals, L.P. (NYSE: BSM) ("Black Stone Minerals," "Black Stone," or "the Partnership") today announces its financial and operating results for the fourth quarter and full year of 2025 and provides guidance for 2026. Fourth Quarter 2025 Highlights Full Year Financial and Operational Highlights Management Commentary "Over th ...