Expectations for Oil/Gas Services ETF?

My thoughts apply only to me, but I'd be looking more towards integrated operations and downstream operators. One of the reasons I've never owned COP except in some mutual funds. Most the experts have always said own COP and not CVX if you had to choose. The experts also said COP would never be forced to cut dividends and CVX would. I have never understood this. In recent times we have found out an operator with downstream operations can withstand a violent downturn in input prices and not cut dividends.

My question to you is why do you think this is a good sector to be in? You very well could be right, I'm just looking for an opinion and logic contrary to mine. I'd be happy with $70 brent and $60ish wti, but based on aggressive increases in rig count alone, I'm hoping my most speculative oil play can withstand $40, and will probably be more comfortable with $50.