According to Business Insider, California's biggest utility provider has seen half its market value wiped out since the wildfires started.
The Pacific Gas and Electric Company (PG&E) said it experienced problems with transmission lines and substations in the area of the fire around the time the blazes erupted.
PG&E said if the company's equipment is determined to be the cause, it will suffer a "material impact." The stock has already plummeted more than 50% in a week.