When we lived on the High Plains and in the gas camps of the Rockys we learned to keep two weeks food, fuel and lamps on hand just in case.
When the BIG ice storm hit here a few years ago power went out, and we used lanterns I had not lit in 25 years! They worked fine. We had fuel, food, water, and lamps and did well like my ancestors did on the plains.
Back in 2006 we had a big storm knock out the electricity (8 days). I had battery invertors off the car to run my laptop, and a kersene lamp. (It was a neat image - pc by the lamp!) Even had dial-up modem back then to get a report out!