TRC looks into quakes in North Texas

摘要

The Railroad Commission of Texas is ordering subsidiaries of ExxonMobil Corp. and Houston-based EnerVest Ltd. to prove their wells aren't responsible for North Texas earthquakes. The commission said April 24 it has initiated proceedings requiring the operators of disposal wells near Azle, Texas, to prove the injection permits for the wells should not be cancelled and the wells shut in. The order follows a study on recent seismic activity in North Texas published last week by Southern Methodist University (SMU) researchers.