By Shariq Khan NEW YORK (Reuters) - Oil prices rose over a dollar a barrel on Tuesday, as traders weighed the possibility that Russian supplies may be disrupted by Ukrainian drone attacks on its ports and refineries, and awaited the Federal Reserve's decision on U.S. interest rates. Brent crude futures settled up $1.03, or 1.5%, at $68.47 a barrel. U.S. West Texas Intermediate crude futures rose $1.22, or 1.9%, to settle at $64.52 a barrel. Russia's oil pipeline monopoly Transneft has warned producers t ...