Not the question I was expecting, but it I will give it a shot.
First of all, we are much more strictly regulated in Canada than in the United States. Our environmental laws here are some of the toughest in the world despite what your former Vice President Gore would have you believe about Alberta. Another difference here is the influence of lobbyists. We don't have lobbyists here in the way that you have in the United States. Industry has less power here than there. Another difference is mineral rights. Our landowners do not own the mineral rights to the land they are on (except in very rare cases), the province owns the resource which it then leases to a developer (oil company). If the oil company is being irresponsible, those leases will be revoked.
Anyway, garbage. Like I said earlier, many of the oilfield workers here were born and raised in the western provinces. We really have a lot of young men who were raised on the farms and ranches in the province. These guys are naturally respectful of the land we are on. As far as my employer goes (and our clients - the oil companies), leaving a trail of garbage behind us would lead to termination of employment or termination of our service contract. Companies here are extremely strict about the behavior of their employees and contractors. (For example, we can not park a company pick-up in a bar parking lot.) Things aren't perfect here, but I know from experience that they are much better than in other parts of the world.
I have heard that in North Dakota things are much more as you are describing (I have friends working down there.). From what I understand, the United States has very lenient environmental and safety laws. I have no doubt that with a more transient group of workers, weaker environmental and safety laws, and less mature oil and gas infrastructure, you would have major issues with garbage (and smashed hotel rooms, bar fights, etc.) You are living in a gold-rush, whereas I am living in a place that has had a steady oil and gas presence for decades.
BTW, I spent the good part of a year working offshore on the Mexican side of the Gulf of Mexico. The environmental and safety laws are very good in Mexico, but their enforcement is terrible.