What We Do
Lone Tree Engineering Services provides multidiscipline Engineering, Design, Project Management and Procurement, and Field Services to the Oil & Gas, Refining and Process industries.
Executive Team
We believe that it takes more than talented, experienced people to deliver successful projects. It takes a team that is committed to going the extra mile to ensure that projects are done right: on-time and on-budget.
Let Our Team Be Part of Your Team!
William McConaghie
President / Principal
William McConaghie
President / Principal
Bill is the President and one of the founding members of LoneTree Engineering Services. He brings over 35 years of industry experience and senior leadership to LTES, growing and scaling both start-up and multi-national engineering companies in Denver and Alaska.
His vision of “Evolving Engineering” began early in his career where, as a designer at with Stearns Roger Engineering, he led the adoption and widespread use of CAD as a design tool. Bill then went on to lead engineering technology for a local start-up, Rapley Engineering Services, where he helped bring people, processes and technology together to grow the company from 16 to over 200 people until it was acquired by VECO (now Ch2M Hill) in 1998. This experience is what would later be his inspiration to join other Rapley alum to form Evergreen Engineering Services. Bill then served as Director of Technical Services for both VECO and CHI until 2013.
Bill holds a MS from the University of Colorado and a BS in Technical Management from Regis University in Denver.
Ray Bliesmer, ME
Ray Bliesmer - Managing Partner
Ray Bliesmer, ME
Ray Bliesmer - Managing Partner
Ray brings over 30 years of experience in engineering management, business development, contracts management, and project design for oil and gas, chemical, pharmaceutical, manufacturing, and mining industries.
Ray possesses extensive skills in project development, with a specialty in EPC projects. Prior to joining the LTES team, Ray served as the General Manager for ENGlobal’s Rocky Mountain operations. He holds a Bachelor of Science degree in Mechanical Engineering and is an active member of several technical societies representing the Oil, Gas and Chemical industry sectors.”
