Crude fell a fourth day after closing at a one-week low as concern mounts over the strength of global growth as Britain votes later this month on whether to leave the European Union.
Futures fell as much as 0.8 percent in New York after settling at the lowest since June 3 on Monday as investors looked ahead to a June 23 referendum that will determine Britain’s membership in the EU. Shale drillers added 12 oil rigs in the U.S. over the past two weeks in the first consecutive weekly gains since August, according to Baker Hughes Inc. data.
The Shell Petroleum Development Company of Nigeria (SPDC) has described as “unsubstantiated assertions”, a recent statement by Amnesty International and the Centre for Environment, Human Rights and Development (CEHRD) that it manipulates investigations into series of oil spills in Nigeria.
The two global bodies had declared that Shell's claims on oil pollution in the region were "deeply suspect and often untrue."










Crude oil futures ended higher on Thursday, boosted by demand for refined products after industry data earlier this week showed a steep decline in gasoline and distillate inventories.
US gasoline and ultra low-sulfur diesel (ULSD), more commonly known as heating oil, futures both rose to more than three-month highs in intraday trading as large French refineries remained offline due to strikes.