gaussian distribution-Synonym(s): gaussian curve. graphical distribution of normal data, following a bell-shaped curve; the mean, median and mode all coincide at the central high point of the curve; 67% of data lie within Â± 1 standard deviation (sd) of the spread of the sample data; 95% lie within Â± 2 sds.
The Los Angeles plant is one of Exxon's four refineries in the United States that do not have an adjacent chemical plant. A second, in Chalmette, Louisiana, which Exxon operates jointly with Petroleos de Venezuela, is currently on the block. The other two refineries that are not integrated are located in Joliet, Illinois, and Billings, Montana, and process North American crude oil. As a matter of practice, we do not comment on market speculation or rumor, said Todd Spitler, a spokesman for Exxon Mobil.
Valero's big advantage in the Gulf Coast Valero is the world's largest independent refiner, with 16 refineries in the U.S., the U.K., and Aruba that have a total throughput capacity of 2.8 million barrels per day.ast year, the company ordered 5,320 new railcars to help ship discounted crudes to these refineries and is also pursuing a 70,000 bpd crude oil offloading facility at its Benicia refinery in California.