Saudi Arabia is providing the lion's share of the cartel's production cuts while many members continue to pump above their quotas.
Gold prices were steady on Tuesday ahead of a two-day Federal Reserve meeting.
U.S. stock index futures pointed to a higher open on Wednesday morning as traders eyed a probable interest rate hike from the Fed.
Asian stocks wavered on Tuesday, ahead of the Federal Reserve's two-day monetary policy meeting.
U.S. government debt prices were higher on Monday morning as investors eyed auctions and a potential interest rate hike later in the trading week.
European markets closed higher on Monday as political uncertainty dominated and traders geared up for a likely rate hike by the U.S. Federal Reserve.
The impact of higher U.S. market interest rates turned the dollar positive against both the euro and a basket of currencies.
Oil hovered around three-month lows on Monday, as rising U.S. inventories and drilling activity offset OPEC's efforts to restrict output.
Gold prices slipped on Monday as the prospect of imminent interest rate rises kept them near the five-week lows touched last week.
Asia markets turned positive on Monday but traders remained wary ahead of a potential rate hike by the Federal Reserve this week.
U.S. equities rose in choppy trade, while investors were already looking ahead to a Federal Reserve meeting next week.
U.S. government debt prices rose slightly as investors digested fresh economic data ahead of a likely U.S. interest rate hike next week.
European markets closed to eke out gains on Friday as investors digested strong U.S. jobs data ahead of a probable rate hike next week.
The euro jumped to a fresh three-week high against the dollar on Friday.
Yellen said last week the central bank was poised to lift rates provided jobs and inflation data held up, comments seen as cementing plans for an increase in March.
Oil prices gave up early gains under pressure from heavy oversupply despite OPEC-led production cuts.
U.S. stock index futures pointed to a flat to slightly higher open on Monday morning as traders prepared for a probable interest rate hike later in the trading week.
South Korean equities rose slightly amid growing political uncertainty after President Park Geun-hye's impeachment ruling.
U.S. stock index futures pointed to a higher open as traders eyed data ahead of a probable U.S. interest rate hike next week.
U.S. equities were mixed in choppy trade Thursday as investors got ready for key employment data.