Oil Producers Head for Doha Counting $315 Billion Cost of Slump

The 18 nations set to gather in Doha on Sunday to discuss a production freeze have spent $315 billion of their foreign- exchange reserves -- about a fifth of their total -- since the oil slump started in November 2014, according to data compiled by Bloomberg. In the last three months of 2015, reserves fell nearly $54 billion, the largest quarterly drop since the crisis started.

The petrodollar burn has consequences beyond the oil nations, affecting international fund managers like Aberdeen Asset Management Plc and global currencies markets. Oil nations have traditionally held their reserves in U.S. Treasuries and other liquid securities. Nonetheless, the impact in credit markets has been muted as central banks continue to buy debt.