Unfortunately, yes. There have been a lot of efforts to shift the energy mix in the EU away from Russian oil and natural gas. But, the effort has been slow and has meant rising costs. Also, by removing Russian production from the supply side, prices will invariably increase. Ukraine does have to balance the damage that can do to foreign support, against their war aims. Personally, I think it’s pretty selfish of the EU and US to ask Ukraine not to strike those resources. It’s essentially the US/EU saying, “more of your people need to die, so we can save money.” It’s a really crappy thing to ask.