Oil prices fall as analysts say market still oversupplied

Oil prices rose on Tuesday after Reuters reported Iran was sending positive signals that it may support joint OPEC action to prop up the market, before the market pared gains on trade data showing a surprise build in U.S. crude stocks.

Iran, the third-largest producer in the Organization of the Petroleum Exporting Countries, refused to join a previous attempt this year by the group and non-OPEC members led by Russia to stabilize production. But sources in OPEC and the oil industry told Reuters that Tehran appeared more willing to support such talks scheduled next month in Algeria.

"Iran is reaching its pre-sanctions production level soon and after that it can cooperate with the others," said a source familiar with Iranian thinking after a visit by Venezuelan Oil Minister Eulogio Del Pino to Tehran as part of a tour to convince OPEC of a production freeze.

Brent crude settled up 80 cents, or 1.6 percent, at $49.96 a barrel, while U.S. West Texas Intermediate (WTI) crude rose 69 cents, or 1.5 percent, to close at $48.10.

Tehran has been boosting its oil output since the lifting of Western sanctions in January. News of its potential support for a production freeze helped halt an abrupt slump in crude prices that began on Monday, after a 20-percent rally in the past two weeks.