Quite a relevant post for us as we’re not on mains gas and have frequent power cuts.
Cooker is electric oven and gas hob - we have 3 large bottles of propane gas at any one time - lasts ages! We’re on oil central heating so always top up when it gets to half full (though to be honest it’s so expensive that we avoid turning it on - just once a day to keep everything ticking over).
We have two wood burners so we keep a hefty supply of logs and grab any deadwood when we’re out and about. We burn primarily hardwood - oak, beech & ash.
We have a variety of lanterns, head torches, solar/wind up torches etc and enough ikea candles to light up most of the rest of the Lake District.
The one thing we don’t store is fuel for our cars - one petrol and one diesel- we always keep them topped up between 3/4 and full but have never really gone down the road of storing fuel - not sure why really …