The same day, Bernanke said in a speech at the Fed's annual meeting of the current economic situation in the United States disappointing, and said that if necessary, the Fed will be ready to take measures to stimulate economic growth, increase employment. Although Bernanke in his speech did not suggest a new round of quantitative easing monetary policy will take in the near future, but the market is still optimistic about the Fed's monetary stimulus.

        Raymond Cabernet, senior trader for the New York Mercantile Exchange, also said that following Bernanke spoke after the European Central Bank may also take monetary stimulus. Looking forward to the monetary policy of the central banks of Europe and the United States to promote the rise in oil prices.

        Moreover, affected by the Bernanke speech, the dollar fell. Tracking changes in exchange rates of the U.S. dollar against a basket of currencies, the U.S. dollar index fell about 0.5%, a weaker dollar also supported oil prices.

        Economic data, the U.S. July factory orders increased by 2.8%, the biggest increase in 12 months. The Reuters / University of Michigan report showed U.S. consumer confidence index for August rose to 74.3. The positive economic data pushed oil prices.

        Another report said that Germany and Italy opposed the release of strategic oil reserves, but also to help the oil price rally. Group of Seven finance ministers recently said, and that may be proposed by the International Energy Agency to release strategic oil reserves in response to Iranian oil exports have declined due to economic sanctions from Europe and the United States expressed concern about the oil price rally, the United States has also said that does not rule out the possibility of the release of strategic oil reserves sex.

        To close the day, the New York Mercantile Exchange, the price of light sweet crude oil futures for October delivery rose $ 1.85 to close at $ 96.47 per barrel, or 1.96%. The week up 32 cents, the full month rose $ 8.41, or 9.55%.

        North Sea Brent crude oil futures prices for October delivery rose $ 1.92 to settle at $ 114.57 a barrel, or 1.70%. The week up 98 cents to the full month rose $ 9.65, or 9.20%.