Meet Our Instructors

Bill Murchison, CEO, Instructor, Albuquerque Corporate Office 
Bill has a B.B.A. from Texas Christian University. Bill has been working for MDS since 1997. Before joining MDS, he managed several other companies in other industries. Bill has over thirty years of experience in training and teaching. He is a certified IADC WellSharp and IWCF well control instructor and assessor.

John Breidenthal, Manager, Instructor, Houston Training Center
John has a Petroleum Engineering degree from the University of Kansas, and has thirty seven years of experience in drilling. He has worked as a field drilling engineer for deepwater and jackups, drill site manager, production supervisor, and well control instructor for a major oil company. John has varied experience working on land rigs, jack-ups, and drill ships. He is a certified IADC WellSharp and IWCF well control instructor.

Tim Arnold, Instructor 
Tim has a Petroleum Engineering degree from the Colorado School of Mines, and has over thirty years of experience in drilling operations. Tim joined the MDS teaching staff after retiring from Marathon Oil Corporation in February 2011. Tim has a varied experience, working on land rigs, jack-ups, semisubmersibles, and drill ships. Tim is a certified IADC WellSharp and IWCF well control instructor.

Bob Haagensen, Instructor 
Bob has a B.A. from the University of Colorado and an M.A. from Western State College. He has over thirty-two years of operational experience, working both internationally and domestically. His primary area of expertise is drilling fluids. Before joining MDS, Bob worked for MI Drilling Fluids. In addition to excellent operational experience, Bob also has sixteen years of teaching experience. Bob is a certified IADC WellSharp and IWCF well control instructor.

Willie Lyon, Instructor, Houston Training Center
Willie Lyon has a Petroleum Engineering degree from Texas A&M, and has forty-five years of experience in drilling operations. He joined MDS in 2009 as a Lead Instructor. He has worked as a production engineer, drilling engineer, manager of engineering, manager of operations, and as a drilling consultant. Willie has a varied experience, working on land rigs, jack-ups, semisubmersibles, and drill ships. Willie is a registered PE and is a certified IADC WellSharp and IWCF well control instructor. He is also a member of the AIME/SPE and the IPAA.

Richard Quick, Instructor, Houston Training Center
Richard has thirty seven years of experience in drilling. He has held positions from roustabout to drilling superintendent, including four years as a well control instructor. Richard is previously retired from a major oil company where he was part of a well engineering process safety team. He is a certified IWCF & IADC well control instructor.

Gordon Poss, Instructor, Colorado Training Center
Gordon Poss teaches well control courses in the Rocky Mountain and Baaken areas. Gordon has a B.S. in Petroleum Engineering from the Colorado School of Mines. He has over forty years of operational experience. After graduating, he worked as a drilling engineer, senior drilling engineer supervisor and specialist, as well as a drilling manager. Gordon has experience with HPHT drilling, MPD operations, desert operations, exploratory drilling, offshore drilling and workover, and research and development. He has varied experience, working on land rigs, jack-ups, semisubmersibles, and drill ships. Gordon is a registered PE and is a certified IADC Supervisor (Level 4) combined surface/subsea well control instructor.

Cecil Duke, Instructor, Permian Training Center & Vernon College
Cecil graduated from Southwestern Oklahoma state University with a BS degree in Natural Resource Management/Chemistry. He began working in the oil industry in 2007 as a mud engineer in the Rocky Mountains. In 2012 Cecil founded CD Fluid Training and began teaching a Drilling Fluids school at Vernon College in north Texas.

Charles "Chuma" Ubaru, Instructor, Houston Training Center
Chuma has 32 years of experience in drilling on land rigs, jack-ups and semi-submersibles. He worked in various positions from roustabout to rig manager, well control instructor, drilling engineer and drilling supervisor. He is a certified project management professional (PMP) and member of the project management institute (PMI) with a BS degree from University of Benin, Nigeria and MEng degree from the University of Calgary, Canada.

Dan Grunwald, Instructor, Alaska & Colorado Training Centers
Dan has a BS in Geological Engineering from the Colorado School of Mines, and he will be teaching IADC WellSharp well control classes in Colorado. Dan has twenty years of operational and teaching experience.