EghtesadOnline: OPEC ended its first day of meetings in Vienna without reaching a deal on country quotas, delegates who took part in the talks said.

EghtesadOnline: Oil is poised for the biggest monthly advance since April amid speculation informal talks among OPEC members in Algeria next month may result in action to stabilize the market.

EghtesadOnline: OPEC has done it again. Talk of a potential deal to freeze output helped push oil close to $50 a barrel and prompted money managers to cut bets on falling prices by the most ever. West Texas Intermediate, the U.S. benchmark, went from a bull to a bear market in less than three weeks.