Oil up on lower U.S. stocks, firmer demand

LONDON (Reuters) - Oil prices firmed on Wednesday on signs of improving demand and a drawdown in U.S. crude inventories, but worries over the economic fallout from the coronavirus pandemic and weak refining margins capped gains. Brent crude futures were up 51 cents, or 1.47%, at $35.16 per barrel at 0928 GMT. U.S. West Texas Intermediate (WTI) July crude futures were up 22 cents, or 0.69%, at $32.18 a barrel. The WTI June contract expired on Tuesday at $32.50 a barrel, up 2.1%, avoiding the..