TETRA Technologies Inc.

The Oil Service Index (OSX) closed the week at 269.70, up 0.7% on the week and up 10.0% YTD, Jefferies reports. The S&P 500 rose 1.4% on the week and is now up 5.7% YTD. “Last week, the top three performers in our coverage universe were Oil States International Inc. (NYSE: OIS) (+9.0%), Core...