More on Chevron's (CVX) Q3 results: Misses on earnings and revenues are blamed on lower crude prices and a heavy period of planned oilfield maintenance. Worldwide production was 2.52M boe/day vs. 2.6M boe/day in the year-ago quarter. Average sales price/bbl of crude oil and natural gas liquids was $91 vs. $97 a year ago. Downstream operations earned $456M vs. $704M a year ago. CVX -0.5% premarket.