Also participating in the meeting were representatives from Qatar and Venezuela, according to a source who attended the meeting.
After trading above $31, the price fell back below $30.
World markets are still awash with oil because OPEC and Russia are pumping out barrels at a record rate, and U.S. shale production is falling only very slowly.
At the same time, demand is faltering due to weaker global economic growth.
OPEC members such as Nigeria and Venezuela have been leading the calls for a coordinated production cut to boost prices, but Saudi Arabia and other low cost producers in the Gulf have thus far refused to play ball.
They worry that without a broader agreement including producers outside the cartel, and Russia in particular, OPEC would simply surrender more of its shrinking market share.
Several rounds of exploratory talks have taken place in the past few months, fueling oil price volatility as traders bid up prices in the hope of a deal only to sell again when the effort falls flat.
Tuesday`s meeting brings together the global oil market`s top two exporters. But there`s no guarantee of a deal.
Still, investors appear to be betting that the flurry of diplomacy is making progress -- oil prices jumped 12% alone on Friday, just a day after they plummeted to $26.05, the lowest level since May 2003.
More about: