Brent crude dropped 69 cents, or 0.9%, to $76.75 a barrel at 0643 GMT, while U.S. West Texas Intermediate crude fell 67 cents, or 0.9%, to $73.04.
The surprising U.S. inventory build coupled with lower crude imports and softer export growth in China in April exacerbated worries about global oil demand. OPEC and its allies, known as OPEC+, agreed last month to cut production by 1.16 million barrels per day from May through the end of the year.
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