Energy stocks fell more than the rest of the market after Chevron became the latest big energy company to report lower profits.
The Dow Jones industrial average was down 30 points, or 0.2 per cent, to 15,569 in midday trading Friday.
The Standard & Poor's 500 index fell three points, or 0.2 per cent, to 1,703. The Nasdaq composite was down two points, or 0.1 per cent, at 3,673.
The government reported that 162,000 jobs were created last month, fewer than economists expected and the least since March.
The yield on the 10-year Treasury note fell to 2.63 per cent from 2.71 per cent.
Weight Watchers plunged 19 per cent to $38.24 after reporting disappointing results and replacing its CEO.