 In January 2011 the management of Houston Pavilions finalized an extension of the lease with Books-A-Million.David Knox, an NRG spokesperson, said NRG employees and contractors had been moving into the 1201 Fannin St. from other locations since January 2011.Two weeks before March 17, 2011, the employees of NRG finished moved into 1201 Fannin St. Around March 17 the office building was renamed the NRG Tower.