Oil prices eased today on gasoline demand worries. Worries about U.S. gasoline demand, meanwhile, have kept gasoline futures prices near a recent two-month low, cutting gasoline and 321- crack spreads, which measure refining profit margins, to their lowest levels since February. “Gasoline demand (is) still surprisingly weak in keeping supplies near normal levels as bullish seasonals diminish,” analysts at energy advisory firm Ritterbusch and Associates said. Higher interest rates is also causing worries as it could weigh on economic growth and reduce demand for oil. U.S. consumer confidence unexpectedly improved in May after deteriorating for three straight months amid optimism about the labor market, but worries about inflation persisted and many households expected higher interest rates over the next year. WTI traded down $.60 or -.8% to close at $79.23. Brent fell $.62 or -.7% to close at $83.60.