OPEC needs clearly defined endgame to tame oil glut Only patience is keeping a production restraint pact from unraveling
Qatar crisis: Oil supply vulnerability in time of plenty Crude oil ignores latest Middle East conflict but can't shrug off the risk
OPEC's 'whatever-it-takes' pledge may exact a high price Imperative for group to continue recalibrating under extension of cuts
Countering shale's revival is a marathon for OPEC, not a sprint A surge in US output is starting to look more probable
OPEC keeps US shale guessing on cuts -- but the answer is clear Not extending reductions beyond June would send crude tumbling again
OPEC needs more than disciplined cuts to chart new course US shale means continual tweaks, broader cooperation crucial for market stability
Saudi Aramco IPO: Will investors buy into the promise? Appetite for investment will depend on production cuts being enforced
