Brent crude LCOc1 was down 9 cents at $46.56 a barrel at 1033 GMT. It reached a seven-month low of $44.35 on June 21. U.S. crude fell 17 cents to $44.07.

The August light, sweet crude contract on NYMEX gained 37¢ on June 26 to settle at $43.38/bbl. The September contract was up 34¢ to close at $43.61/bbl. The NYMEX natural gas price for July gained nearly 10¢ to a rounded $3.03/MMbtu. The Henry Hub cash gas price was $2.98/MMbtu, up 12¢. The Brent crude contract for August on London’s ICE increased 29¢ to $45.83/bbl while the September contract was up 29¢ to $46.04/bbl. The July gas oil contract dropped $1.75 to $409.50/tonne. OPEC’s basket of crudes on June 26 was $43.14/bbl, down 12¢.

Global benchmark Brent crude futures were trading up 45 cents, or 1.0 percent, at $45.99 per barrel at 0623 GMT. U.S. West Texas Intermediate (WTI) crude futures were up 43 cents, or 1.0 percent, at $43.44 per barrel.

“Prices can go below $40 a barrel given the market is being dictated by sentiment and not fundamentals. There is nothing to stop it right now.”

OPEC’s crude oil production increased by 270,000 bpd in May over April, to stand at 32.12mn bpd – the highest level since January this year

As oil prices sag despite OPEC’s renewed efforts to shore up world crude markets, Wall Street banks have more bad news for the producer group: the outlook for next year isn’t great either.

"When these factors are taken together I can only conclude that the supplies coming from marginal barrels including shale production will not be sufficient to meet the future need for incremental capacity the mid-term," Falih said. "The market balance is already pointing in that direction," he added.

OPEC Member Countries and non-OPEC parties, Azerbaijan, Kingdom of Bahrain, Brunei Darussalam, Kazakhstan, Malaysia, Mexico, Sultanate of Oman, the Russian Federation, Republic of Sudan, and the Republic of South Sudan, taking into account the decision reached by OPEC at the 172nd Meeting of the Conference, recognized the need for continuing cooperation among oil exporting countries in order to achieve a lasting stability in the oil market.

Ministers from the Organization of Petroleum Exporting Countries and its allies meet in Vienna to decide whether to prolong their agreement. Major producers including Saudi Arabia, Russia and Iraq favor an extension for nine months and, while other options will be discussed, consensus is building around an agreement that runs through next March.

Russia itself is now slightly overcomplying with its commitment to cut 300,000 b/d of oil production from October levels, having achieved a 310,000 b/d cut since the beginning of the month.