Black Stone Minerals, L.P.

We have a Code of Business Conduct and Ethics that applies to our directors, officers, and employees as well as a Financial Code of Ethics that applies to our Chief Executive Officers, Chief Financial Officer, Chief Accounting Officer, and the other senior financial officers, each as required by NYSE and SEC rules. Each of the foregoing is available on our website atwww.blackstoneminerals.com in the “Corporate Governance” subsection of the “Investors” section. We will provide copies, free of charge, of any of the foregoing upon receipt of a written request to Investor Relations at Black Stone Minerals, L.P., 1001 Fannin Street, Suite 2020, Houston, Texas 77002. We intend to disclose amendments to and waivers, if any, from our Code of Business Conduct and Ethics and Financial Code of Ethics, as required, on our website, www.blackstoneminerals.com, promptly following the date of any such amendment or waiver.