The world's biggest economies said on Thursday they were looking into releasing oil from their strategic reserves, following a rare request from the United States for a coordinated move to cool global energy prices.

The U.S. move reflects frustration with the Organization of the Petroleum Exporting Countries (OPEC) and allies such as Russia who have rebuffed Washington's requests to speed up oil production as the world economy rebounds from the pandemic.

It also comes as U.S. President Joe Biden fends off political pressure ahead of midterm elections next year over rising gasoline prices and other costs driven by the recovery.