expertise iconContact An Expert

Sproule Training



Cameron Six P.Eng.

Senior Petroleum Engineer

Cameron’s 16-year tenure at Sproule includes reserve and contingent resource evaluations, acquisitions, divestitures, security commission reports, reserve audits, and international property evaluations. Cameron is the former President and CEO of Sproule. Cam has provided expert witness testimony across the globe as well as support to legal teams for litigation purposes. Cam has also held various technical and management positions with Mobil Oil Canada and ExxonMobil Canada.


Barry Hanson P.Eng.

Senior Petroleum Engineer

Barry has been teaching with Sproule since 2017. He has over thirty-five years of industry experience, including five years of reserves and resource evaluation experience, with an emphasis on type curve analyses for Canadian and US unconventional assets.


Tamara Warren P. Eng.

Petroleum Engineer

Tamara has been teaching with Sproule since 2017. She has five years of experience with Western Canadian Sedimentary Basin reservoirs, estimating technical reserves and resources. She specializes in capital and operating costs for Canadian reserve evaluations.


Liam O’Brien P. Eng.

Petroleum Engineer

Liam has been teaching with Sproule since 2017. He has six years of reserves and resource evaluation experience and is a key member of the commodity price forecasting team, helping to create Sproule’s publically available price decks, released monthly.


Alec Kovaltchouk P. Geo.

Vice President, Geoscience

Alec Kovaltchouk is responsible for leading the Geoscience department at Sproule. Alec has been a Sproule professional since 1997 and has over 32 years of industry experience. He has experience in Argentina, Brazil, Canada, Colombia, the Czech Republic, Indonesia, Kazakhstan, Mexico, Poland, Romania, Russia (Dagestan, Siberia and the Volga-Ural region) and Ukraine. His worldwide experience includes conventional and unconventional oil and gas resources, including shale gas and shale oil, heavy oil and oil sands, and coal bed methane. Alec is fluent in English, Polish, Russian and Ukrainian.


Kristian Wieclawek P.Eng.

Petroleum Engineer

Kristian has been a Sproule professional since 2011. He is a qualified reserves evaluator as defined in National Instrument 51-101 (Alberta Securities Commission), focused on reserves evaluations, resource assessments and technical due diligence in the Western Canadian Sedimentary Basin. He has experience evaluating unconventional resource plays, including the Montney, Duvernay, Horn River and Liard Basins, as well as in heavy oil, encompassing CHOPS, waterflooding and enhanced oil recovery.


Jeffrey Aldrich

Senior Geoscientist

Jeffrey (Jeff) Aldrich is a Senior Geoscientist with Sproule, a global energy consulting and advisory firm. He has over 35 years of global oil and gas experience working from frontier exploration through appraisal and large development projects. His expertise is in unconventional reservoirs, prospect evaluation, reserve determinations and multi-discipline and multi-culture team dynamics.

Prior to joining Sproule, he held various management and technical positions with Dart Energy, an Australian global unconventional gas company, Greenpark Energy, a UK CBM company, PetroSA, the South African national oil company, Forest Oil, Maxus Energy and Pennzoil Oil and Gas Company.

He has a BS in Geology from Vanderbilt University and an MS in Geology from Texas A&M University. He is an active member in the AAPG, SPE, RMAG, DWLS, DIPS and is a Certified Petroleum Geologist (#3791) and a licensed professional in Texas and Louisiana. He is author or co-author of over 30 papers and/or technical presentations.


John Seidle

Senior Reservoir Engineer

Dr. John Seidle is a Senior Reservoir Engineer with Sproule, a global energy consulting and advisory firm and has  40 years’ experience in unconventional reservoirs. His conventional and unconventional reservoir experience includes exploration, development, production optimization, and enhanced recovery projects in the USA, Canada, Australia, India, Poland, South Africa, Colombia, Turkey, United Kingdom, Mexico, China, Kazakhstan, and Mongolia. Dr. Seidle’s unconventional reservoir experience includes estimation of Reserves and Resources, economic evaluations for investors and A&D transactions, and expert witness testimony for litigation and regulatory agencies.

He has taught industry classes for over a decade. He has co-authored 30 technical papers, a monograph on coalbed methane reservoir engineering, and was editor and chapter author for SPEE Monograph 4 “Estimating Ultimate Recovery of Developed Wells in Low-Permeability Reservoirs”. John is a Registered Professional Engineer in Colorado, Oklahoma, and Wyoming and a member of SPE, SPEE, and AAPG. He received a PhD in Mechanical Engineering from the University of Colorado.


Stanley Kleinsteiber

Senior Petroleum Engineer

Stanley Kleinsteiber is a Senior Petroleum Engineer with Sproule, a global energy consulting and advisory firm. Mr. Kleinsteiber has over 42 years of petroleum engineering experience and has authored or co-authored papers dealing with CO2 flooding for enhanced oil recovery, rate transient analysis in low permeability reservoirs, and depletion of a rich gas condensate reservoir by nitrogen injection.

Since joining Sproule, he has managed and participated in reservoir projects around the world, including Algeria, Australia, Belize, Canada, Hungary, Indonesia, Poland, Romania, Tunisia, and the United States. Prior to joining Sproule, he held various reservoir engineering positions with Amoco Production Company both in their Tulsa, Oklahoma research center and Denver regional production office. Mr. Kleinsteiber’s last position with Amoco was Western Business Unit Technology Coordinator where he was an internal reservoir engineering consultant to the business unit’s staff in the Rocky Mountain and Mid-Continent regions.

Mr. Kleinsteiber received a BS in petroleum engineering with highest honors from the University of Oklahoma in 1978 and is a Registered Professional Engineer in Colorado and Wyoming.