|Company Name||# of Hedge Funds||# of Insiders Buying||# of Insiders Selling|
|RPC, Inc. (NYSE:RES)||9||0||0|
|Core Laboratories N.V. (NYSE:CLB)||12||0||2|
|Dril-Quip, Inc. (NYSE:DRQ)||8||0||4|
|Superior Energy Services, Inc. (NYSE:SPN)||14||1||2|
|Oil States International, Inc. (NYSE:OIS)||17||1||2|
With the returns demonstrated by Insider Monkey’s research, retail investors must always pay attention to hedge fund and insider trading activity, and MDU Resources Group Inc (NYSE:MDU) shareholders fit into this picture quite nicely.