LONDON—Oil prices eased on Thursday following weak U.S. payrolls data and some profit-taking, but remained underpinned by tight supply as OPEC+ producers stuck to planned moderate output increases. Brent crude fell 61 cents, or 0.7 percent, to $88.86 a barrel by 0915 GMT, after rising 31 cents on Wednesday. U.S. West Texas Intermediate crude was down 69 cents, or 0.8 percent, at $87.57 a barrel, having gained 6 cents the previous day. U.S. private payrolls fell for the first time in a year in January, raising the risk of a sharp decline in employment that would deal a temporary setback to the labor market. Still, tight global supplies and geopolitical tensions in Eastern Europe and the Middle East have boosted oil prices by about 15 percent so far this year. The Organization of the Petroleum Exporting Countries and allies led by Russia, known as OPEC+, agreed on Wednesday to stick …