Can a power company disconnect service during adverse weather like extreme heat or cold?

My home is on a shared well with 2 other homes. I just found out that the power for well is not paid by my landlord. Apparently another tenant is responsible for the bill for the meter to power the well. He has not paid the bill and the power company turned it off yesterday afternoon. It is 115 degrees here in AZ and I have livestock. I called the power company and it will cost $440 to get that meter turned back on. That includes a $250 deposit and $190 worth of past due bills, which means the other tenant didn't pay the bill for more than 6 months. Can the power company do that when water is essential to life??