A major power outage left people in the dark for several hours on Thursday. According to TXU Energy, several power lines went down around 3PM. Crews worked for most of the afternoon and evening to restore the power lines. TXU says the outage was caused by a feeder problem from the substation to the distribution circuit. Oncor officials Thursday evening said that most of the affected area, including North Lufkin, Idlewood, and Highway 69 were back online Thursday night.