Ken Mariani

President ,
EnerVest Ltd.
Mr. Mariani is the President of EnerVest, Ltd., a position he has held since January 2014.  Prior to this appointment he served as Executive Vice President of EnerVest, Ltd., and President and CEO of EnerVest Operating Company from January 2012 to January 2014.  He joined EnerVest in 2000 and was Senior Vice President and General Manager – Eastern Division for 11 years. Prior to joining EnerVest, Mr. Mariani served as Vice President of Operations for Energy Corporation of America (ECA) and was responsible for Engineering, Land, Geology and Production operations. Prior to his role at ECA, he held various engineering positions at Conoco, Inc., in the Midland, TX, and Rocky Mountain Divisions.
Mr. Mariani holds a degree in Chemical Engineering from the University of Pittsburgh, graduating cum laude with a Petroleum option. He received his Master’s in Business Administration degree from the University of Texas (Permian Basin) and is a Licensed Professional Engineer. 

Ken was appointed to the Board of Directors of EV Energy Partners in January, 2015.  He also serves on the Board of Directors of AXPC – American Exploration & Production Council.  Ken previously served on the Board of Directors in the Michigan, Ohio and West Virginia oil and gas associations. He is an active member of various oil and gas associations and is Past Chairman of the Society of Petroleum Engineers.

Ken Mariani is a speaker at the Oil and Gas Councils North America Assembly, click here for more information

United Kingdom

T: +44 20 7384 8056
Bedford House
69-71 Fulham High Street


T: +65 6590 3978
78 Shenton Way

Houston - USA

T: +1 713 353 4633
Two Allen Center, 1200 Smith Street, Floor 16, Suite 6061

Houston, TX, 77002


Lagos - Nigeria

T: +44 787 550 6366
No. 92 Oduduwa Crescent,
G.R.A., Ikeja
Lagos State

South Africa

+27 21 001 3884
Great Westerford
Corner Main Rd & Dean Street
Newlands 7700
Cape Town