OPEC mostly kept its members in line during the first month of coordinated production cuts, but the cartel faces a test of its will this spring.
The Organization of the Petroleum Exporting Countries in January managed to cut about 90 percent of the 1.2 million barrels it promised to remove from the market last year, according to S&P Global Platts and others that track shipments. Those efforts have helped stabilize global oil prices above $50 a barrel.
