In 2010, Flint Hills Resources refinery operations criteria air emissions per barrel were 64 percent lower than the average among peer refiners (latest comparison data available).
Since 1997, Flint Hills Resources has reduced its per-barrel criteria air emissions by 76 percent at its four refineries: Corpus Christi - East and West, North Pole and Pine Bend.
Three refineries rank No. 1 (North Pole); No. 7 (Pine Bend) and No. 20 (Corpus Christi West Refinery) for lowest criteria air emissions per barrel on the list of the 50 largest refineries.