MELBOURNE, Jan 19 (Reuters) - Oil prices fell on Thursday after industry data showed a large unexpected increase in U.S. crude stocks for a second week, heightening concerns of a drop in fuel demand.
Adding to the pall, data from the American Petroleum Institute showed U.S. crude oil inventories rose by about 7.6 million barrels in the week ended Jan. 13, according to market sources.
Nine analysts polled by Reuters had estimated on average that crude inventories fell by about 600,000 barrels.
The big build marks the second consecutive week of large inventory increases.
On a bullish note, however, distillate stockpiles, which include diesel and heating oil, fell by about 1.8 million barrels against analysts' expectations for a 120,000-barrel increase.