OPEC's decision to cede no ground to rival producers underscored the price war in the crude market and the challenge to U.S. shale drillers. The 12-nation group abandoned its role as a swing producer, ignoring the steepest slump in oil prices since the global recession to keep its output target unchanged.
China and Russia deepened their energy ties with a second blockbuster deal that lessens Russian reliance on Europe and would secure almost a fifth of the gas supplies China needs by the end of the decade.
The dollar strengthened to a 14-month high and commodities declined to the lowest level in five years after data added to evidence China’s economy is slowing. Russia’s ruble weakened to a record after the European Union and U.S. imposed new economic sanctions.