Black Stone Minerals, L.P. (NYSE: BSM) (“Black Stone,” “BSM,” or “the Company”) announced that as of today its 2021 Schedule K-3 (reporting items of international tax relevance to its partners) is available on line at www.taxpackagesupport.com/BSM.

A limited number of unitholders (primarily foreign unitholders, unitholders computing a foreign tax credit on their tax return and certain corporate and/or partnership unit holders) may need the detailed information disclosed on Schedule K-3 for their specific reporting requirements. To the extent Schedule K‐3 is applicable to your federal income tax return filing needs, we encourage you to review the information contained on this form and refer to the appropriate federal laws and guidance or consult with your tax advisor.

To receive an electronic copy of the Schedule K-3 via email, unitholders may call Tax Package Support toll free at 855-839-3087.

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 Company owns mineral interests and royalty interests in 41 states in the continental United States. Black Stone believes its large, diversified asset base and long-lived, non-cost-bearing mineral and royalty interests provide for stable to growing production and reserves over time, allowing the majority of generated cash flow to be distributed to unitholders.

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