Brent held steady above $113 per barrel while U.S. crude weakened slightly, as speculation about Iran and the West offset fears about Iraq.
U.S. stock index futures pointed to a flat-to-lower open on Wednesday, as investors awaited this month's policy decision from the Fed.
U.S. stock index futures were higher on Tuesday, as European markets shook off fears over developments in Iraq, Ukraine and Argentina.
Most U.S. Treasury prices were flat after solid economic data overcame earlier strength, as fighting overseas boosted demand for safe-haven bonds.
European shares closed lower on Monday amid concerns of escalating tensions in Iraq and rising oil prices.
The dollar was up around a third of a percent against the yen as markets listened to the Bank of Japan's latest comments on policy on Friday.
Crude pushed higher in choppy trading as advances by Sunni insurgents in Iraq fueled concerns over a potential disruption to oil exports.
The Australian dollar fell more than half a percent against the U.S. dollar on Tuesday after the RBA expressed economic recovery doubts.
Asian equities finished a choppy session mixed on Monday with escalating violence in Iraq weighing on sentiment.
Stocks rose on Friday, with equities on track for weekly losses.
U.S. stock index futures traded lower on Monday, with risk aversion growing due to concerns about Iraq, and to a lesser extent, Ukraine.
European shares closed slightly down flat on Friday amid concerns of escalating tensions in Iraq and rising oil prices.
Sectarian violence in Iraq sent oil skyrocketing, propelling Brent and West Texas Intermediate up two percent.
Palladium tumbled to a one-month low as investors awaited confirmation that South Africa's longest mining strike would end soon.
Asian equities turned mixed on Friday amid concerns about violence in Iraq and signs of improving economic activity from China.
The dollar dipped versus the yen, although potentially decisive events such as the Federal Reserve meeting midweek limited movements.
U.S. stock index futures were little changed on Friday, after falling sharply a day earlier when stocks were hit by concerns about violence in Iraq.
The Treasury auctioned $13 billion of 30-year bonds at a high yield of 3.444 percent. The bid-to-cover ratio, an indicator of demand, was 2.69.
European shares closed around the flatline on Thursday, paring earlier gains.
Retail sales missed expectations, and state unemployment benefits claims climbed higher than expected.
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