Black Stone Inks New Deal With Revenant, Expands Haynesville Gas Development in East Texas

Black Stone Minerals, L.P. (NYSE:BSM) ("Black Stone," "BSM," or "the Partnership") today announces that it has entered into a development agreement with Revenant Energy ("Revenant") with respect to the Partnership's expanded Shelby Trough Haynesville and Bossier acreage, primarily located in Angelina, Nacogdoches, and San Augustine counties in Texas. Separately, the Partnership has agreed to amend the existing development agreements with Aethon Energy ("Aethon") in Angelina and San Augustine counties. As part of this amendment, Aethon will return to the Partnership highly prospective mineral acreage to support and further accelerate another potential development program in the region.