Stocks ended a wobbly day mostly lower on Wall Street Monday, with energy companies logging some of the biggest losses as oil prices took another turn lower.

The S&P 500 index fell 0.1% and the Nasdaq rose 0.2%.

Benchmark U.S. crude oil fell 2.6% following a decline of 7.7% last week. That helped pull energy companies lower. Occidental Petroleum fell 3%.

Technology companies also weighed down the broader market. Companies are still turning out their latest quarterly earnings reports.

Tyson Foods climbed 8.7% after turning in a strong report card.

The yield on the 10-year Treasury note rose to 1.32%.