WARREN
ZEMLAK
PRESIDENT & CHIEF EXECUTIVE OFFICER
Warren has served as BJ’s Chief Executive Officer and a Director since January 2017. With more than 34 years of experience, Warren has held various senior leadership and executive roles in operations, technology, and manufacturing related to cementing, hydraulic fracturing, coiled tubing, artificial lift, and completion services.
Prior to BJ, Warren served as Chief Operating Officer at Sanjel Corporation. Prior to Sanjel, Warren held various North American and International assignments with Schlumberger for 21 years, most recently as Vice President – Well Services – North America. Warren’s operational and technical expertise has resulted in multiple innovations including patents related to reservoir stimulation, subsea intervention, and drilling technology. Warren currently serves on the Advisory Board for the Energy Workforce and Technology Council.