- Colyar J.J., "Economics of Partial Upgrading of Canadian Bitumen for Diluent Elimination", Journal of the Canadian Heavy Oil Association, June 2012.
- Colyar J.J., "Has the Time for Partial Upgrading of Heavy Oil and Bitumen Arrived", Petroleum Technology Quarterly, Q4 2009.
- Eric C. Robert, Isabelle, Merdrignac, Stéphane Kressmann, James Colyar, “H-Oil® Process: Contribution of Analytical Tools for the Understanding of Sediment Formation”, AIChE Spring National Meeting, New Orleans, March 10-14, 2002.
- Kenneth Tasker & James Colyar and Stanisław Putek, “Hydrotreating and Conversion of Difficult Feedstocks using the H-Oil Process”, Presented at the Axens Refining Seminar, November 2001, Madrid, Spain.
- Colyar J.J, Duddy J.E. and Kressmann S., “Combine H-Oil and SDA for Maximum Conversion and Minimum Investment”, The 2nd Workshop on Upgrading and Refining of Heavy Oil, Bitumen and Synthetic Crude Oil, Edmonton, Canada, September 2000.
- Billon A., Colyar J.J., Kressmann S., and Morel F., “Deep Conversion of Heavy Oils via Combination of Catalytic Hydrocracking and Deasphalting”, World Petroleum Congress 2000, Calgary, Canada, June 2000.
- Boyer C., Colyar, J.J., and Kressmann S., “Improvements of Ebullated-Bed Technology for Upgrading Heavy Crude Oil”, Chemical Reactors, from Mock-up to Industrial Reactor: Diagnostic Methods", International Conference, Lyon, France, December 1999.
- Colyar J.J., Peer E.D., Billon A., Kressmann S. and Morel F., “H-Oil Process Based Heavy Crudes Refining Schemes”, 7th UNITAR Conference on Heavy Crude and Tar Sands, Beijing, China, October, 1998
- Colyar J.J and Peer E.D., “The H-Oil Process plus Coking Applied to South American Feedstocks”, Rio Oil and Gas Conference, Rio de Janeiro, Brazil, October 1998.
- Morrison M.E., Colyar J.J., Heinrich G. and Wisdom L.I., “Combining Heavy Ends Upgrading Processes for Maximum Conversion”, World Fuels Conference, San Francisco, CA, March 1998.
- Tasker K.G., Colyar J.J. and Wisdom L.I., “First Residue Hydrocracker Starts-Up in Asia/Pacific”, 1998 NPRA Annual Meeting, San Francisco, CA, March 1998
- Colyar J.J. and Wisdom L.I., “Technology Options for the Turn of the Century”, IFP Heavy Ends Conference, New Delhi, India, February 1998.
- Colyar J.J., “Ebullated-Bed Technology’, Upgrading Heavy Ends with IFP, Lyon, France, September 1997.
- Colyar J.J. and Peer, E.D., “The H-Oil Process: Preferred Configurations for Application to Western Canadian Feedstocks”, Workshop 97 for the National Centre for Upgrading Technology, Edmonton, Canada, September 1997.
- Wisdom L.I. and Colyar J.J., “Upgrade Residue to Transportation Fuels with the H-Oil Process”, Rationalizing Capacity and Profitability in Asian Oil Refining, Phuket, Thailand, February 1997.
- Morrison M.E., Nocca J-N., Colyar J.J. and Koseoglu R.O, “New Processes for Sulfur Control in Gasoline”, World Fuels Conference, Washington, D.C., October 1997.
- Colyar, J.J. and Wisdom L.I., “The H-Oil Process: A Worldwide Leader in Vacuum Residue Hydroprocessing”, 1997 NPRA Annual Meeting, San Antonio, TX, March 1997.
- Colyar J.J. and Koseoglu R.O., “The Ebullated-Bed T-Star Process for FCCU Pretreatment”, HRI/IFP Customer Seminar, Woodlands, TX, May 1997.
- Colyar J.J. and Wisdom L.I., “The H-Oil Process: A Worldwide Leader in Vacuum Residue Hydroprocessing”, Conexpo Arpel’96, Rio de Janeiro, October 1996.
- Colyar J.J. and Wisdom L.I., “The H-Oil Process: A Worldwide Leader in Vacuum Residue Hydroprocessing”, IMP’s 2nd Forum of the Refining Industry, Mexico City, Mexico, August 1996.
- Wisdom L.I. and Colyar J.J., “PEMEX Selects the H-Oil Process for their Hydrodesulfurization Residue Complex at the Miguel Hidalgo Refinery”, Sixth International Conference on Heavy Crudes and Tar Sands, Houston, TX, February 1995.
- Wisdom L.I. and Colyar J.J., “Second Generation Ebullated-Bed Technology”, JPI Petroleum Refining Conference, Tokyo, Japan, October 1994.
- Wisdom L.I. and Colyar J.J., “Upgrading Vacuum Residua from Mexican Crudes for Petroleos Mexicanos Hydrodesulfurization Residue Complex Miguel Hidalgo Refinery”, JPI Petroleum Refining Conference, Tokyo, Japan, October 1992.
- Colyar J.J. and Wisdom L.I., “Maximize Production of Transportation Fuels through Hydrocracking of Residues”, International Symposium on Heavy Oil and Residue Upgrading and Utilization, Fushun City, China, May 1992.
- Faupel T.H., Colyar J.J. and Wisdom L.I., “Debottleneck Refinery Operations by Integrating the H-Oil Process with Deasphalting”, AICHE 1990 Summer National Meeting, San Diego, CA, August 1990.
- Colyar J.J. and Zenz F.A., "The Dual-Sided Multi-Riser Atmospheric Fluidized Bed Combustor Concept", 1989 International Conference on Fluidized Bed Combustion, May 1989.
- Colyar J.J., Harris E.C. and Popper G. A., “Demonstration of the High Conversion H-Oil Process on Cold Lake Vacuum Residuum”, Fourth International Conference on Heavy Crudes and Tar Sands, Edmonton, Canada, August 1988.
- Wisdom L.I., Tasker K.G. and Colyar J.J., "Upgrading Heavy Crudes by Using Vacuum Bottoms Recycle in the H-Oil Process", Canadian Heavy Oil Association, Calgary, Canada., May 1988.
- Wisdom L.I., Colyar J.J. and Jeffries R.B., "High Conversion H-Oil Processing of Cold Lake and Lloydminster Residues in Support of Husky's Bi-Provincial Project", Third International Conference on Heavy Crudes and Tar Sands, Long Beach, CA, July 1985.