A huge line of drivers formed at a Chicago gas station offering gas for just $1.99 per gallon for a limited time today. The Shell station at 4357 W. Belmont Ave. on the city's Northwest Side is giving out gas for less than $2 a gallon as part of a limited-time promotion from 9:30 a.m. to 2 p.m. #chicago #gas #gasstation #shell #gasprices