Do Miners Participate in the Future Mark and Use Them as Hedging Instruments?

Do miners currently participate in the future mark and use them as hedging instruments at all? And if not, do you see a future in which the future market serves a commercial purpose for miners? If that spread were to compress and it became an the they had a need to hedge volatility. I think really, after march of last year, with that sell off, i think a lot of them were even more inclined to do so.