Thomas L. Carter Jr., Executive Chairman of Black Stone Minerals LP (BSM), purchased 67,758 common units.
The total investment reached approximately $909,335.
Transactions occurred between May 8 and May 12, 2026, according to an SEC Form 4 filing.
Weighted average prices ranged from $13.3186 to $13.4754 per unit.
The acquisition increases Carter's direct holdings to 3,681,604 common units.
Insider purchases of this magnitude often signal strong confidence in company prospects.
BSM shares traded at $13.61 on the morning of the announcement.
The stock price showed a slight decrease of 0.3% to 0.4% during early trading.