The complex is capable of refining 380,000 barrels (60,000 m3) of crude oil per day and is the largest refinery operated by Phillips 66. Oil is supplied from the Gulf of Mexico, Canada, and domestic sources through pipelines. The facility produces 165,000 barrels per day (26,200 m3/d) of gasoline, 90,000 barrels per day (14,000 m3/d) of diesel and jet fuels, as well as other products including asphalt, propane, and chemical feedstocks.
A new four-drum coker, part of Wood River Refinery's Coker and Refinery Expansion (CORE) was completed in November 2011. The new coker has a capacity of 75,000 barrels per day and is expected to expand the capacity to handle the bitumen from the Alberta oil sands by nearly 700%. The new Wood River coker's processing capacity is approximately 200,000 - 220,000 barrels per day. The CORE project took about three years to build, with a total cost of US $3.8 billion (US $1.9 billion to Cenovus), and has increased clean product yield by 5% to approximately 85%. While the expansion was undertaken specifically to handle heavy oil imported from Alberta, the refined transportation fuels products are destined for the U.S. Midwest market, including St. Louis and Chicago not Canada.
An RO filtration system upgrade to treat boiler water was also completed in 2011. 3500 total feet of pipe on 800 feet of modular pipe rack was installed along movable trailers containing the filtration system. This expansion increased the amount of steam available to the refinery. Thermal cracking, stripping and power generation are some of the major processes within a refinery that use steam.