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Phillips 66 has 15 refineries globally and 2.2 million barrels a day of capacity. "When we think about our refining business we like to think about it in four segments. One is the Mid-Continent, about 21% of our capacity is there. Margins have been very strong in this area, as you know. Our largest region is the Gulf Coast, about 33% of our capacity is there.We have large economy of scale here. We have very complex refineries on the Gulf Coast. The Western US and Pacific region is about 20%, includes our interests in the Melaka refinery.The West Coast has typically had high margins historically, but the last couple years has been challenged in part due to the economic slowdown in California."