Black Stone Minerals, L.P. Announces 2018 K-1 Tax Packages Are Now Available

Black Stone Minerals, L.P. (NYSE: BSM) (“Black Stone Minerals,” “Black Stone,” or “the Partnership”) today announces that 2018 tax packages, including Schedule K-1, for common, subordinated, and preferred units of Black Stone Minerals are now available online. The respective tax packages may be accessed at the Tax Package Support website at www.taxpackagesupport.com/bsm. The Partnership expects to complete mailing of the 2018 tax packages this week. For additional information, unitholders may contact Tax Package Support at [phone] weekdays between 8 a.m and 5 p.m. CT.

About Black Stone Minerals, L.P.

Black Stone Minerals is one of the largest owners of oil and natural gas mineral interests in the United States. The Partnership owns mineral interests and royalty interests in 41 states and 64 onshore basins in the continental United States. Black Stone expects that its large, diversified asset base and long-lived, non-cost-bearing mineral and royalty interests will result in production and reserve growth, as well as increasing distributions to its unitholders, over time.

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Brent CollinsVice President, Investor RelationsTelephone: [phone]