October crude oil traded lower during the initial morning hours, responding to weakness in Brent crude oil and a level of concern ahead of today's EIA inventory data. It is possible that private inventory readings that showed a larger than expected build in US crude supplies last week may have tempered this morning's macroeconomic optimism. Some traders suggested that the early weakness could be the result of a market that has rallied nearly $10.00 and closed higher for 6 of the last 7 sessions. Expectations for this week's crude oil inventory data point to a build of 1.0 to 1.5 million barrels.