Greg has over 35 years of experience managing major projects, engineering, and operational excellence around the world, and creating systems to make high performance repeatable.  As President and sole owner of consulting firm Leading Projects LLC, Greg recently served as Executive Advisor and Chief Transformation Officer for the CEO of a European oil and gas company. His leadership and coaching of “Mindful Leadership” (HRO) principles has enabled organizations to improve safety, reliability, and high team performance in high risk environments, where teams must deal constantly with change and unexpected events, but still deliver top-tier performance more consistently than the competition.


Greg was Executive Vice President and Chief Development Officer at Cobalt International Energy, with global accountability for bringing deepwater discoveries through the development pipeline and into production.  Prior to his position at Cobalt, Greg served as Vice President, Upstream Developments at Marathon Oil, where he had global accountability for major projects, central engineering, and operational reliability. Before joining Marathon, Greg served as Vice President – Major Projects for BP where he was responsible for projects excellence and oversight of approximately 70 major developments globally. He has led numerous world-class projects to success; these include Atlantis (ultra-deepwater GOM), the expansion of the world’s largest processing plant in Prudhoe Bay, Alaska, as well as projects in Venezuela, Ecuador, Algeria, West Africa, Norway, UK North Sea, Denmark, and China.


Greg is currently on the Executive Advisory Committee and is past Vice Chairman,– Engineering and Construction Contracting Association.  He’s on the Industry Advisory Board – Masters of Energy Business Program, University of Tulsa; and the Advisory Board, Project Management Certificate Program, Texas A&M University.


He holds a Bachelor’s Degree in Construction Engineering from California Polytechnic University, and is a graduate of a proprietary executive development program at MIT’s Sloan School of Business.


Greg Sills is President of Leading Projects LLC.




Executive Board of Directors – Engineering and Construction Contracting Association

Advisory Board – Masters of Energy Business Program, University of Tulsa

Advisory Board, Project Management Certificate Program – Texas A&M University


The name “Leading Projects” is both an action phrase and a description of the outcome every company wants to achieve in the world of capital projects.

The logo represents how successful projects are delivered in many dimensions with three overlapping building blocks.  Examples:  safe, competitive, and predictive describe the best project outcome; the right assignments, training, and networks/mentoring are the keys to effective staff development.

Logo and website designed by Ally Tomi | |




All photos are from Greg's projects and were taken by Judy Patrick.