4 factors that will decide how much juice is left in oil’s post-OPEC rally

Behind the recent massive rise in crude oil prices was an OPEC deal that some doubted would ever get done. Now, as questions linger over the historic agreement, analysts wonder just how much higher prices can go.

Already, there have been signs of hesitation. Brent crude LCOG7, +2.47%was dodging over and under the $52 a barrel mark on Thursday. West Texas Intermediate crude CLF7, +2.49% was hovering just under $50 a barrel, on the heels of its dazzling 9.3% gain Wednesday.

Count the Barclays commodities research team among the doubters. They told clients in a note Thursday that the Organization of the Petroleum Exporting Countries deal looks a little “too good to be true.

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