Crude oil down slightly at close NEW YORK, Feb. 14 (UPI) -- Crude oil prices closed lower Tuesday in a day of mixed trading on concerns about Greece and the release of U.S. retail data. Light, sweet, West Texas Intermediate crude reached a high of $101.84 a barrel during the day before falling 17 cents, or .02 percent, to $100.74 at the close. Home heating oil lost 0.48 cents to $3.164 per gallon. Reformulated gasoline closed at $298.25 per gallon.