Black Stone Minerals LP opened an offer to buy back all 117,963 outstanding Series A preferred units from its preferred unitholders, the company said Nov. 6.

The units’ par value is $1,000 each. The tender offer expires Dec. 10 unless extended, the company added. Tenders must be made on or before the expiration.

The offer will be funded through cash on hand and funds under the revolving credit facility.

American Stock Transfer & Trust Co. LLC is the depositary, Black Stone said.

Black Stone Minerals LP is based in Houston.