As organization members face struggling economies, representatives will meet in Vienna, where they are expected to agree on cutting production

When the Organization for Petroleum Exporting Countries (Opec) meets on 30 November in Vienna, expectations are that the cartel will finally, finally come to some sort of agreement on a production cut. Whether they cut or not, one thing is certain. The main topic of conversation will be Donald Trump.

The meeting will mark the second-year anniversary of Opec’s decision to forego setting crude-oil prices and let the market set values, all in a bid to crush non-Opec output, specifically by US shale-oil producers, which was contributing to elevated global supply.

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