Technical Team

Dr David K Hobday

Regional Exploration

David holds a PhD in Geology from Louisiana State University and worked at the Texas Bureau of Economic Geology before spending time with Sydney Oil Company and Bridge Oil. He has gained experience in international oil and gas exploration in Argentina, Russia, Turkmenistan, Azerbaijan, China, India, Namibia, Angola and the Congo Basin. In the period 2000-2003 David worked with Parsons Energy generating oil prospects in the onshore US Gulf Coast. In addition to conventional oil and gas exploration he has experience in unconventional gas appraisal and development in several parts of the world plus tight oil and shale oil projects in North America. He was the recipient of the Wallace Pratt Memorial Award from the American Association of Petroleum Geologists for "significant contributions to petroleum geology". David is also on the board of Petrel's subsidiary Schuepbach Energy International LLC (SEI) in Dallas. 

Dan Steward

Unconventional Specialist

Dan holds a Bachelor of Science degree in Geology from the University of Houston conferred in 1972 and has been involved in the upstream oil and gas industry for 46 years. During his career he has been employed by Ames Oil & Gas, Dresser Magcobar, Shell Oil Company and Mitchell Energy. In this latter 20 year period he held a number of positions within company management, but in one capacity or another was always involved with the Barnett Shale play.

Dan joined Republic Energy in 2002 and this partnership has allowed him to apply the understanding of organic shales acquired from the Barnett to other shales across the North American continent. In 2007 Dan published a definitive history of the evolution of the Barnett Shale play pioneered by George P. Mitchell and his team at Mitchell Energy. He was selected by the American Association of Petroleum Geologists for their 2007 Explorer of the Year award for his role in establishing the Barnett as one of the largest gas producing fields in the country which became the model for shale resource plays worldwide.

Garth Sloan

Geological Expert

Most recently Garth spent 4 years as Vice President, Unconventional Resources for the Supermajor Total S.A., globally responsible for all technology, methodology, and acquisitions.

Garth is an industry recognized expert in value creation in unconventional resources, and a proven oil and gas finder with 34 years of highly diversified experience as a geologist, manager, and executive in the petroleum industry. Extensive experience identifying, evaluating, acquiring, and developing international unconventional petroleum prospects with an emphasis on Canada, U.S.A., and Australia; and including Argentina, China, Morocco, Romania, Uruguay, Russia, Mexico, Indonesia, United Kingdom. Conventional oil and gas experience covers detailed exploration and development projects in conjunction with geophysics, as well as structural geology, engineering, broad regional geology, and operations geology. Board positions have included: Founding Member of the Alberta Energy Resources Conservation Boards’ Coalbed Methane Task Force.

Doug Hamilton

Geological Expert

Most recently Doug spent 5 years as Chief Geologist, Pangaea Resources specialising in conventional & unconventional shale gas and coal seam gas reservoirs for Pangaea. He was instrumental in developing the Walloon Coal Measures CSG play at ATP 788P in SE Queensland and in the subsequent asset sale for $660 million in 2009. He was also instrumental in developing Pangaea’s dominant shale gas position in the Northern Territory.

Doug has 35 years international experience in the petroleum and coal industries – over 25 years as a reservoir geologist conducting fully integrated geological and engineering reservoir characterization projects in conventional and unconventional reservoirs (CSG & Shale). Specialist disciplines include sedimentology, sequence stratigraphy, basin analysis, subsurface stratigraphic mapping, play & facies analysis, and reservoir characterization from core & wireline log analysis and 3D seismic interpretation. He has operated in the USA, Australia, Venezuela, Colombia, Argentina, The Gambia and Cuba.

Glenn Wormald

Formation Evaluation

Glenn is a sub-surface formation evaluation specialist with research interests in petrophysics and reservoir modelling. He has been involved in the discovery, appraisal and development of numerous oil & gas fields plus the evaluation of acquisition targets in Australia, Algeria, Brazil, Canada, China, Iran, Pakistan, Peru, Russia, UK and USA during a thirty five year career, twenty five years of which was with BHPBilliton. Most recently Glenn has been exploring for undervalued assets and overlooked plays as an independent geological consultant. He graduated University of Alberta with BSc (Geology) and is a member of the American Association of Petroleum Geologists.

Nick Steinsberger

Drilling and Completions

Nick Steinsberger began his career with Mitchell Energy in 1987 after graduating from the University of Texas - Austin with a BS in Petroleum Engineering. He was responsible for the first water fracs in the Barnett in 1997. As the Barnett Shale grew, Nick continued to improve the completion design while overseeing the activity; Mitchell Energy had 18 rigs running in 2001. After the sale of Mitchell Energy to Devon in January 2002, Nick continued as the Completion Manager for the Barnett Shale and was responsible for completing the first 30 horizontal wells starting in the fall of 2002. Nick then joined Republic Energy as VP of Engineering. Under Nick's supervision, Republic drilled and completed approximately 40 wells in 1-1/2 years in Parker, Hood and Johnson counties. These were some of the first successful wells in what is now considered Tier 2 in the Barnett Shale.

Nick then began Steinsberger Tight Gas Consulting drilling and completing every horizontal well in the Barnett Shale for the Moncrief family and Republic Energy. Nick has also drilled and completed shale wells in the Woodford, Fayetteville, Floyd, Marcellus, Utica, and several shales in Canada.