Analysts said the fall in crude prices at futures trade was primarily after it extended losses in Asian trade amid speculation that the OPEC oil cartel will maintain output at this week's closely watched meeting despite a global supply glut.
Meanwhile, West Texas Intermediate crude for January delivery shed 24 cents to $73.85 while Brent crude for January eased 17 cents to $78.16 per barrel in mid-morning trade on the New York Mercantile Exchange.