Last year, investigators determined the wildfire was caused when a pine tree touched one of the utility's power lines and set the tree on fire. A Cal Fire report, blamed PG&E and its contractors for failing to identify the tree as possible hazard. In the annual report, Pacific Gas And Electric Company said that it now faces lawsuits filed by "1,950 individual plaintiffs representing approximately 950 households and their insurance companies." The company estimates it could suffer a $750 million hit eventually, but it's still too soon to say. Meanwhile, Pacific Gas And Electric Company has a brand-new issue : On January 12, 2017 in Yuba City, California, it appears an explosion destroyed a nearby house, leaving the homeowner with first and second-degree burns and a second person with minor injuries. PG&E disclosed that investigators were looking into the possibility that a nearby gas line leak on a pipeline that PG&E has been in the process of replacing may have been the origin or cause of the explosion.