Oil prices eased on Friday as investors turned cautious ahead of U.S. jobs data that is expected to play into the Federal Reserve’s decision on the timing of any U.S. rate hike. “There’s been a little bit of up and down and range-bound movement, which has all the hallmarks of a market marking time,” said Ben Le Brun, market analyst at Sydney’s OptionsXpress. Brent crude for October delivery (LCOc1) fell 58 cents to $50.10 a barrel as of 0519 GMT, after ending the previous session 18 cents higher.