NEW YORK (Reuters) - Oil prices climbed more than 4% on Wednesday on signs of improving demand and a drawdown in U.S. crude inventories, but gains were capped by worries over the economic fallout from the coronavirus pandemic and weak refining margins. Brent crude futures were up $1.38, or 3.98%, at $36.03 per barrel at 10:54 a.m. ET (1454 GMT) while U.S. West Texas Intermediate (WTI) July crude futures were up $1.38, or 4.32%, at $33.34 a barrel. Both benchmarks rose more than 5% during the..