I've known a fair number of people who have got out to the oil patch over the years.  From what I've heard, it's good money, but hard work.  The younger guys all seem to be able to stick it out but I know one or two middle aged guys who were back before long.  Also, now housing is expensive and hard to find out there.

 As to your frozen tundra remark, I spent a week in Stanley, ID back in late July.  ND looks like a banana belt compared to the climate there.  LOL