Despite the supply glut, benchmark Brent and U. S. WTI have hit six-month highs on expectations for market tightness in the near-future.

尽管供应过剩，但指标布兰特和美国西德克·萨斯中质油(WTI)期货均触及六个月高点，因预计在不久的将来市场将收紧。

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The oil flowing into Cushing contributed to a crude oil bottleneck there, and was one of the reasons that the Brent-WTI differential developed.

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Margin requirements in the spotlight this week again after the CME Group, owner of futures exchange NYMEX, announced a 25% hike in collateral requirements for crude oil futures, putting initial, and short-lived, pressure on WTI and Brent prices.

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