WTI Falls to Three-Week Low as U.S. Growth Seen Slowing

West Texas Intermediate crude fell to the lowest level in three weeks, trimming its biggest monthly advance in almost a year, before a government report that may show U.S. economic growth slowed in the second quarter.

Futures dropped by as much as 1.1 percent. U.S. gross domestic product probably expanded at a 1 percent annualized rate from April through June, compared with 1.8 percent in the previous three months, according to a Bloomberg News survey before data are released tomorrow. The nation’s crude inventories shrank for a fifth week, a separate survey showed. Egypt’s Muslim Brotherhood defied threats of a further crackdown on protests, urging a march on security installations.