Management Team

Mr. Lancaster has over 20 years of experience in the energy industry. Mr. Lancaster currently serves as the Vice President of Corporate Development of Mammoth. Mr. Lancaster also served as interim President of Cobra Acquisitions LLC, Higher Power Electrical LLC and 5 Star Electric LLC, Mammoth's infrastructure subsidiaries, from June 2019 to November 2019. Prior to these positions, Mr. Lancaster served as President of Mammoth Energy Partners LP.  from 2014 to 2015, as Chief Executive Officer of Redback Energy Services LLC from 2011 to 2015 and as Chief Executive Officer of Great White Energy Services, Inc. from 2006 to 2010, each an oil field services company. From 2010 to 2011, Mr. Lancaster was a consultant to Wexford Capital LP in connection with energy-related investments. Mr. Lancaster previously served on the boards of directors of two public companies, Bronco Drilling Company, Inc., a drilling company, from August 2005 until July 2006, and Gulfport Energy Corporation, an exploration and production company, from February 2006 until August 2006. Mr. Lancaster received a Bachelor of Science degree from the David Lipscomb College.

Mark Layton became Chief Financial Officer of our general partner in August 2014.

Mr. Layton served as Chief Financial Officer of Stingray Pressure Pumping LLC from January 2014 to August 2014. Mr. Layton was employed from August 2011 through January 2014 by Archer Well Company Inc. where his last position was Director of Finance for North America. From September 2009 through August 2011, Mr. Layton was employed by Great White Energy Services, Inc. where his last position was Corporate Controller and Director of Financial Reporting.

Mr. Layton served as Vice President of Finance of Crossroads Wireless, Inc., a wireless telecommunications service company, from May 2007 through September 2009. From April 2004 through May 2007, Mr. Layton served as the Director of Financial Reporting for Chickasaw Holding Company, a telecommunications service company.

He began his career in public accounting with Finley & Cook PLLC. Mr. Layton has a Bachelor of Science degree in Accounting from the University of Central Oklahoma. Mr. Layton is a Certified Public Accountant.