Texas Pacific Land (TPL) fell sharply on Wall Street Thursday, with the stock shedding nearly 16% after the unexpected death of Murray Stahl, who had served on the board of directors since January 11, 2021.

Murray Stahl was also the Chief Executive Officer, Chairman, and Chief Investment Strategist of Horizon Kinetics Holding Corporation, the primary shareholder of Texas Pacific Land. According to the annual report published by the company in February, Horizon Kinetics held a 15.6% stake as of February 9, 2024, while Murray Stahl held a reported 5.1% interest.

On the board, he served on the Nominating and Corporate Governance Committee as well as the Strategic Acquisition Committee. His influence extended far beyond his formal mandate, given the historical weight of Horizon Kinetics in TPL's capital structure.

In a statement, TPL Chief Executive Ty Glover praised a "tremendous advocate" for the company, noting that Horizon Kinetics had supported Texas Pacific Land since the days when the group was still an illiquid and under-followed trust.