How successful will OPEC's predatory dumping strategy be? Since the fracking industry in the US has started to grow rapidly, I have heard increasing reports that OPEC is attempting some form of predatory dumping in the hopes of making the fracking industry in the US unprofitable.
How successful do economists predict that OPEC's dumping strategy will be?  For example, does OPEC have a large profit margin and the fracking industries a small profit margin (making fracking an unprofitable enterprise quite easily under some form of predatory dumping) or are the profit margins close enough to make any predatory dumping infeasible in the short-run?
This is the cost curve of oil production (North American shale at $65):


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And this is the cost curve of major American projects:


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While "Citi's Ed Morse highlighted this chart, showing that for most US shale plays, costs are below $80 a barrel."

And clearly, many of these new projects would lead to losses with oil prices at $60:


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The problem with predatory pricing (if it's purposeful) is that OPEC itself depends on high oil prices to ensure balanced budgets in their (mostly dictatorial) regimes. Their sovereign funds are large enough to survive a brief (2-3 years) period of low oil prices, but in the long run, dumping endangers their rulers' positions:




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You can't kill American oil production this way—it would return after these two-three years anyway.

The \$60-80 band leaves space for most American projects, while oil below \$60 kills too many OPEC members. So, it does not seem to be a good dumping strategy.