Robert Wayne Drummond, President & CEO, Director at Key Energy Services, holds 2.41M shares in Patterson-UTI (Ticker: PTEN), holds 43.43K shares in Expro Group Holdings (Ticker: XPRO), holds 0.00 shares in Nextier Oilfield Solutions (Ticker: NEX). Most recently, Robert Wayne Drummond Sold ― shares of Patterson-UTI on Mar 04, 2024 for an estimated value of 2.97M.