Fortune magazine included 4 companies in Oklahoma on its annual list of the 100 best companies to work for. The companies are: Chesapeake Energy, ranked #18 (#32 last year). Devon Energy, #28 (#41 last year). American Fidelity Assurance, #47 (#39 last year). QuikTrip, #66 (#34 last year). Chesapeake, Devon and American Fidelity Assurance are based […]