Citigroup Boosts Stake in Black Stone Minerals

Investment firm increases holdings in oil and gas producer by over 36%

Mar. 4, 2026 at 8:54am

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Citigroup Inc. grew its stake in Black Stone Minerals, L.P. (NYSE:BSM) by 36.2% in the third quarter, according to a recent SEC filing. The investment firm now owns 347,200 shares of the oil and gas producer's stock, worth approximately $4.56 million.

Why it matters

This move by a major financial institution signals confidence in Black Stone Minerals' outlook and potential for growth in the energy sector. As a royalty and mineral interest company, Black Stone Minerals provides investors exposure to oil and gas production without the capital expenditures and operational risks of exploration and development.

The details

Citigroup increased its position in Black Stone Minerals by acquiring an additional 92,193 shares during the third quarter. The firm now owns 0.16% of the company's outstanding shares. Other institutional investors have also been active in the stock, with Investment Management Associates Inc. ADV and ING Groep NV both increasing their stakes in the previous quarter.

  • Citigroup's increased stake was reported in a Q3 2026 SEC filing.

The players

Citigroup Inc.

A major American multinational investment bank and financial services corporation.

Black Stone Minerals, L.P.

A publicly traded limited partnership that acquires and manages oil and natural gas mineral interests and producing royalty interests across the United States.

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The takeaway

Citigroup's increased investment in Black Stone Minerals reflects institutional confidence in the company's ability to generate returns for shareholders through its royalty-based business model in the energy sector.