December RBOB prices traded lower during the early morning hours and are on track for their fifth down day in a row. RBOB prices have been unable to participate in gains in heating oil and crude oil in recent sessions, and that appears to be the result of sluggish demand forecasts. Last week's EIA inventory report pegged US gasoline demand at 8.671 million barrels per day, which is more than 4.0% below year ago levels. In the meantime, the spread between December and January RBOB has tightened to levels not seen since mid-August.