This may be an unpopular view, but people need to hear it. The vast profits being made by our energy companies look disgusting but are a once-in-a-generation opportunity for them to invest in alternatives to fossil fuels. They are building wind farms etc, and investing in future technologies such as modern nuclear power stations and fusion. This investment is the only way to wean us off fossil fuels such as gas. If Government takes the profits as a windfall tax, it would be a populist act that many would approve of, but they would then have to hand the money back to the same companies to subsidise their investment activities.
Disclaimer: I've never voted Conservative in my life, but I am objective and open to seeing the logic in some Conservative policies.