US commercial crude oil inventories increased by 2.5 million barrels to 407 mmbbls in the week ended July 31, the Energy Information Administration said in its weekly report on Wednesday.
Crude inventories were about 6% below the five-year average for this time of year, the EIA said.
The increase is in line with Macquarie's estimate of a 2.5-mmbbl build for the week ended July 31.