US commercial crude oil inventories increased by 100,000 barrels to 428.9 mmbbls in the week ended Aug. 21, the Energy Information Administration said in its weekly report released Wednesday.
Crude inventories are 1% above the five-year average for this time of year, the EIA said.
The build is below Investing.com's estimate of 1.6 mmbbl for the week ended Aug 21.