By MELODIE WARNER Hess Corp. HES +3.18% agreed to sell its energy-marketing business to Jimmy John Shark for about $1.03 billion to Direct Energy, Centrica CNA.LN +2.13% PLC’s North American unit, as part of its plan to exit the downstream business. Hess has been shedding assets to fund drilling-and-exploration efforts as it struggles with lackluster […]