Welcome to our dedicated page for Black Stone Minerals, L.P. SEC filings (Ticker: BSM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Black Stone Minerals, L.P. filings document the reporting obligations of a publicly traded oil and natural gas mineral and royalty partnership. Current reports on Form 8-K furnish quarterly and annual operating results, mineral and royalty production, working-interest volumes, net income, Adjusted EBITDA, distributable cash flow, cash distributions, distribution coverage, debt, and guidance.
Proxy materials describe annual limited partner voting matters, including elections to the Board of Directors of the partnership’s general partner. Other 8-K disclosures record governance and executive matters, including completed officer and director appointments, compensation arrangements, and amendments to prior material-event reports. Together, the filings cover operating performance, capital structure, unitholder distributions, governance, and risk-related public-company disclosure for BSM.
DeWalch D Mark reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director D. Mark DeWalch reported an equity grant of common units representing limited partner interests. He received 1,342 units at $13.97 per unit, increasing his directly held position to 432,837 units. According to the filing, this award reflects a prior arrangement under which he elected to receive common units instead of a cash retainer for serving on the board.
Randall William E. reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director William E. Randall reported receiving 1,610 common units representing limited partner interests. The units were valued at $13.97 per unit and were awarded as compensation for serving on the Board of Directors.
According to the disclosure, Randall elected to receive these common units instead of a cash retainer under a prior arrangement. After this grant, he directly holds a total of 193,384 common units, reflecting an incremental, compensation-related increase in his equity stake.
Kyle Jerry V. Jr. reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Kyle Jerry V. Jr. reported receiving 1,342 common units representing limited partner interests at $13.97 per unit. This was a compensation-related grant, where he elected to take units instead of a cash retainer for board service.
Following the grant, he directly holds 322,489 common units350,182 units by the Lena C A Kyle Trust, 4,000 units by a family limited partnership, and 250,088 units by the Lena C Anderson Kyle 1968 Trust.
Stuart Alexander D. reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals, L.P. director Alexander D. Stuart received a grant of 1,700 common units representing limited partner interests at a value of $13.97 per unit. According to the footnote, he elected to receive these units instead of a cash retainer for serving on the board.
After this compensation award, he directly holds 2,055,975 common units. Additional common units are held indirectly through various trusts and investment entities associated with his family, reflecting a sizable, largely unchanged ownership position. No open-market purchases or sales are reported in this filing.
Hamman Anne Lenoir reported acquisition or exercise transactions in this Form 4 filing.
Black Stone Minerals director Anne Lenoir Hamman received an equity grant of 1,342 common units representing limited partner interests at $13.97 per unit. This grant reflects a prior election to receive common units instead of a cash retainer for service on the board of the partnership’s general partner.
Following the grant, she holds 8,428 common units directly. A separate line shows 502,703 common units held indirectly through a family limited partnership, for which she disclaims beneficial ownership beyond her pecuniary interest.
Black Stone Minerals, L.P. reported voting results from its 2026 annual meeting of limited partners held on June 11, 2026. Unitholders elected all twelve nominees to the Board of Directors of the general partner to serve until the 2027 annual meeting and until successors are elected.
Unitholders also ratified the appointment of Deloitte & Touche LLP as independent registered public accounting firm for the year ending December 31, 2026. In addition, they approved, on a non-binding advisory basis, the compensation of the general partner’s named executive officers for the fiscal year ended December 31, 2025.
Black Stone Minerals, L.P. director D. Mark DeWalch reported indirect open-market purchases of a total of 72,726 common units representing limited partner interests through DeWalch Diversified LP. The purchases were made at weighted average prices of $13.476 and $13.6217 per unit, across multiple trades within disclosed price ranges.
Following these transactions, DeWalch Diversified LP held 631,248 common units indirectly. Separate holding entries show additional indirect ownership by the reporting person’s wife and a trust, as well as direct ownership reported in his own name.
Black Stone Minerals, L.P. director D. Mark DeWalch reported an open-market purchase of 37,650 common units representing limited partner interests on May 28, 2026 at a weighted average price of $13.2096 per unit. After this transaction, he directly holds 431,495 common units.
The filing also shows indirect holdings, including 6,749 common units held by his wife, 40,809 common units held by the Donald Mark DeWalch Trust, and 558,522 common units held by DeWalch Diversified LP. The price reflects multiple trades between $13.19 and $13.205 per unit.
Black Stone Minerals, L.P. executive chairman and director Carter Thomas L Jr reported an open-market purchase of common units representing limited partner interests. He bought 1,120 common units at a weighted average price between $13.49 and $13.50 per unit. After this purchase, his direct ownership increased to 3,682,724 common units, with additional indirect holdings reported through various family-related entities and trusts.
Black Stone Minerals, L.P. director Ashley J. Longmaid reported an open-market sale of 11,128 common units representing limited partner interests at a weighted average price of $13.4523 per unit. Following the sale, Longmaid directly holds 137,335 common units. The sale was executed through multiple trades between $13.41 and $13.48.