Signs of a more stable oil market have emerged since the cartel members last held a regularly-scheduled meeting. Oil prices CLN6, +0.04% LCON6, -0.38%  have gained more than 30% so far this year. And both West Texas Intermediate, the U.S. benchmark, and Brent crude, the global benchmark, briefly traded above $50 on Thursday.

Global production is falling following a larger-than-expected weekly decline in crude supplies, according to a report from the American Petroleum Institute late Tuesday. The report comes as the number of active-drilling rigs have been in a steady state of decline and oil-company spending cuts, oil-and-gas sector bankruptcies, and recent outages in Africa and North America, have been supportive for crude prices.

“OPEC members are likely to be a little happier going into June’s meeting than they were in December,” Tom Pugh, commodities economist at Capital Economics, said in recent research note.

Oil prices have “surged by about a third since the start of the year,” he said. The “higher prices will have removed some of the pressure on [OPEC] to act to prop up prices.”

But that doesn’t mean major oil producers can sit back and relax when they get together. Oil market supply and demand haven’t fully stabilized and there a lot of factors than can, and probably will, rock OPEC’s boat.

Here’s a rundown of what analysts see as the key issues at hand and possible outcomes for the OPEC summit: Continue reading →