SkyMark 5000 Gallon Jet Refueler at O’Hare International Airport By jcollins | March 12, 2018 SkyMark 5000 Gallon Jet Refueler spotted at O'Hare International Airport in Chicago fueling an American Airlines RJ. < Back to News Page Posted in Jet Refueler Trucks and tagged SkyMark 5000 Gallon Jet Refueler