Oil prices recovered on Thursday after a two-day slide as the dollar weakened, making fuel less expensive for holders of other currencies. The dollar has risen more than 4 percent against a basket of currencies (.DXY) over the last 10 days, helping accelerate a fall in oil prices from a five-month high early in May. “Much depends on the U.S. dollar,” said Carsten Fritsch, senior oil and commodities analyst at Commerzbank in Frankfurt.