your right, winter is 5 months away, maybe they should just pack it up and hope for the best next spring!!!! NOT, here in Northern Michigan oil and natural gas is drilled and pumped year round, heck last year they started drilling a new oil well during deer season and the temps were below zero and we received a few inches of snow a day! Drilling rigs are made to penetrate some of the hardest things, frozen ground included.
I wouldn't be surprised they stopped because of all the rain and flooding they had, my buddy in North Dakota said everything was shut down in the floods there last month, so Im not concerned