Biden rebuffed as US relations with Saudi Arabia and UAE hit new low

Analysis: As oil prices - and diplomatic tensions - rise, two of the biggest US allies are questioning the basis of their relationship

As Joe Biden moved to open US strategic oil reserves, his two biggest oil-producing allies have kept their tanks firmly shut. The UAE and Saudi Arabia continue to rebuff the US president as he attempts to counter soaring oil prices prompted by Russia's invasion of Ukraine. And both countries have been unusually frank about their refusal to step in.

The five-week-old war is bringing tensions to a head in several parts of the world, but perhaps nowhere is a regional order more under strain than the Middle East, where two of America's biggest allies are now seriously questioning the foundations of their relationship.