As a FYI, Black Stone Minerals (with BP America as the Operator) is leasing in north Angelina County and building 960 acre units around EOG's Sarge Unit (now owned by Black Stone Minerals). This drilling effort is part of Black Stone Mineral's working interest program (see their website). Two permits have been filed including the TRex and Dino Units. The TRex Unit has been drilled and is currently being completed. Most of the mineral acreage being used to build these units is owned by heirs of the old Angelina County Lumber Company (a sawmill company that ceased operations way back in the 1960 era). Total acreage is about 2,500 acres.
The "going" fair offer lease rate in this area is $250 to $350 bonus per acre with a 20% to 22.5% royalty (cost free). I hope this helps the lucky few with mineral interests in this immediate location.