I do agree that it depends on whether it resembles 2009 or 2015.
What I trying to get at is the more likely scenario where oil stays in the $50 range, even if it jumps up and down periodically, can the average company do reasonably ok?
Just trying to figure out if market is discounting an even more bleak scenario.
It's a good question, but it's a different question from what you asked above. 
You asked: during a recovery from near depression levels, it would be the weakest that would have the strongest performance?
Now you are asking: scenario where oil stays in the $50 range, even if it jumps up and down periodically, can the average company do reasonably ok?
The answers to these two questions are diametrically opposite:
If there is a recovery - and price runup - then weakest and average will likely do much better than stalwarts.
If price stays and fluctuates in $50 range, then the weakest and some average will do badly and may continue going out of business.
So in the first scenario, you'll do better with weak and average.
In the second scenario, you'll do better with stalwarts.
With in depth knowledge of the sector, it might be possible to find companies that will do very well in first scenario and not die in second. But that requires in depth DD.
Just MO. 
Jurgis,
To me, it looked like I am asking the same question. Just shows how ignorant I am about this sector.
My underlying assumption, which I wanted to confirm, is if oil stays at $50 would the average company be able to do reasonable ok? In my mind, I am comparing with the banks during 2011/12 period. They just needed to cut costs, rationalize, wait out the regulatory backlash, elevated credit costs and things should turn out to be reasonable ok. They do not need loan growth or high net interest margins or any of the other drivers of revenue.
Looking at the O&G sector and purely from a stock price perspective, it seemed they suffered similarly and am thinking, do they offer similar values to what banks offered in 2011/12. So is the market discounting oil prices even worse than $50?
From the answers, it now clear that many of the O&G stocks need higher oil prices.
Thanks for sharing your experience. Always good to know what others have experienced.
Vinod