New York — Oil prices tumbled 3% on Wednesday after a record weekly build in US crude inventories stoked investor worries about a global supply glut, days after analysts estimated higher monthly Opec crude output. The US Energy Information Administration (EIA) said crude inventories rose 14.4 million barrels for the week ended October 28, far more than the 1.0 billion barrels analysts had expected. It was the biggest weekly rise in US crude stocks, passing a 2012 record. "This is very, very, very bearish. Nothing else in the report matters," said James L Williams, energy economist at WTRG Economics in London, Arkansas. US West Texas Intermediate (WTI) crude fell by $1.40, or 3%, to $45.27 a barrel by 3.48pm GMT. Earlier, it fell below the $45-per barrel support level, sinking to a five-week low of $44.96. Brent was down $1.41, or 2.9%, at $46.73, after sliding to $46.50, its lowest since September 28. Oil prices had surged in recent weeks, with Brent hitting one-year highs of $53.73...

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