WTI, Brent advance more than 20% from early-August low OPEC comments are ‘spark’ behind price gains: Morgan Stanley Oil headed for its strongest weekly increase in four months after entering a bull market amid speculation that major producers may act to freeze output as U.S. crude and fuel stockpiles decline. Futures fell 0.4 percent in New York, erasing an earlier gain of 1.1 percent, yet still poised for weekly increase of 7.9 percent. While OPEC is unlikely to take action that changes market conditions, its plans to hold informal talks in Algiers next month “were the spark” behind oil’s rally, according to Morgan Stanley. U.S. crude inventories dropped the most in five weeks through Aug. 12, while fuel stockpiles slid a third week, Energy Information Administration data showed Wednesday. Oil has climbed more than 20 percent to enter a bull market, less than three weeks after it tumbled into […]