We've been on an annual budget plan for years where they bill you a fixed amount each month, and then we ante-up any overage in July and they issue an adjusted rate for the next year based on current cost. My monthly was $182/mo. but now it's $454/mo. effective July. Our boiler uses oil for both hot water and baseboard heat, and it's not like we can just rip it out and replace it with all-electric stuff without a huge outlay.
I'm really torqued over this. If you're a heating oil consumer, prepare yourself to take it in the rear.
My dad many years ago added a wood-burning stove to his oil burning furnace. Basically, he used the wood to reduce oil consumption. He did this and reduced his heating costs near zero/monthly. It took some effort to fuel the wood stove, but he saved enough to replace the oil burning furnace for a NG burning furnace. He kept the wood burning stove for the NG furnace just in case.