technical and research personnel and lab facilities , and significantly expanded the portfolio of patents available to us via license and through a cooperative development program . in addition , we have acquired a 20 percent interest in grt , inc . the gtftm technology is protected by an intellectual property protection program . the u.s . has granted 17 patents for the technology , with another 22 pending . worldwide , there are over 300 patents issued or pending , covering over 100 countries including regional and direct foreign filings . another innovative technology that we are developing focuses on reducing the processing and transportation costs of natural gas by artificially creating natural gas hydrates , which are more easily transportable than natural gas in its gaseous form . much like lng , gas hydrates would then be regasified upon delivery to the receiving market . we have an active pilot program in place to test and further develop a proprietary natural gas hydrates manufacturing system . the above discussion of the integrated gas segment contains forward-looking statements with respect to the possible expansion of the lng production facility . factors that could potentially affect the possible expansion of the lng production facility include partner and government approvals , access to sufficient natural gas volumes through exploration or commercial negotiations with other resource owners and access to sufficient regasification capacity . the foregoing factors ( among others ) could cause actual results to differ materially from those set forth in the forward-looking statements . refining , marketing and transportation we have refining , marketing and transportation operations concentrated primarily in the midwest , upper great plains , gulf coast and southeast regions of the u.s . we rank as the fifth largest crude oil refiner in the u.s . and the largest in the midwest . our operations include a seven-plant refining network and an integrated terminal and transportation system which supplies wholesale and marathon-brand customers as well as our own retail operations . our wholly-owned retail marketing subsidiary speedway superamerica llc ( 201cssa 201d ) is the third largest chain of company-owned and -operated retail gasoline and convenience stores in the u.s . and the largest in the midwest . refining we own and operate seven refineries with an aggregate refining capacity of 1.188 million barrels per day ( 201cmmbpd 201d ) of crude oil as of december 31 , 2009 . during 2009 , our refineries processed 957 mbpd of crude oil and 196 mbpd of other charge and blend stocks . the table below sets forth the location and daily crude oil refining capacity of each of our refineries as of december 31 , 2009 . crude oil refining capacity ( thousands of barrels per day ) 2009 .
did the refineries in detroit michigan process more crude than those in canton ohio?
our refineries include crude oil atmospheric and vacuum distillation , fluid catalytic cracking , catalytic reforming , desulfurization and sulfur recovery units . the refineries process a wide variety of crude oils and produce numerous refined products , ranging from transportation fuels , such as reformulated gasolines , blend- grade gasolines intended for blending with fuel ethanol and ultra-low sulfur diesel fuel , to heavy fuel oil and asphalt . additionally , we manufacture aromatics , cumene , propane , propylene , sulfur and maleic anhydride . our garyville , louisiana , refinery is located along the mississippi river in southeastern louisiana between new orleans and baton rouge . the garyville refinery predominantly processes heavy sour crude oil into products .