October RBOB prices grinded higher during the early morning hours, helped in part from gains in crude oil. Some traders suggested that recent underperformance in RBOB compared to crude oil might have come in response to the restart of a Midwest refinery after three-week shutdown, as well as the return of a major Los Angeles refinery from a power outage last week. The added boost in near term supplies was a factor that weighed on spot prices during Monday's trade. Meanwhile, the latest data from the US Department of Energy showed US gasoline prices breaking a two weeks of increases, falling $0.013 to $3.66 per gallon.