Roof Fall, while pillaring Hatfield Mains #5 entry x-cut #10, 8:40pm 12' of unbolted rock came in on continuous miner cutter head while backing out and wedged miner in x-cut, at 11:05pm the roof fall occured inby in the Hatfield Mains #5 entry from x-cut #10 down to x-cut #11. Areas was cribbed and timbered off and miner pulled out from under rock.