Earth Sciences Division (ESD) Department of Energy (DOE) Lawrence Berkeley National Laboratory (LBNL)

Earth Sciences Division Staff: Matthew Reagan

Matthew Reagan

Matthew Reagan

Geological Research Scientist




Phone: 510-486-6517

Fax: 510-486-5686


Additional Information










PhD in Chemical Engineering, September 2000. Thesis: “Multiscale Molecular Modeling of Aqueous Systems from Ambient to Supercritical Conditions." Thesis Advisors: Jefferson W. Tester, Jonathan G. Harris


Bachelor of Science in Chemical Engineering, May 1994. Graduated Magna Cum Laude. AIChE Junior Award.


LAWRENCE BERKELEY NATIONAL LABORATORY, Earth Sciences Division, Berkeley, CA.  Geological Research Scientist. 

Research on the thermodynamics, transport, and chemistry of aqueous systems in the subsurface, including research on the thermodynamics of gas hydrates, gas production from methane hydrate systems, the coupling of methane hydrates and global climate, carbon sequestration via subsurface CO2 injection, data reduction and uncertainty propagation using statistical methods, and “tight gas” simulation and engineering. Built and maintain online tools for physical property estimation and numerical simulation. 2004 to present.

SANDIA NATIONAL LABORATORIES, Combustion Research Facility, Livermore, CA. Technical Staff. 

Research on uncertainty quantification and its application to chemical systems modeling and complex reacting flow. Development of MPI-based parallel reacting-flow codes and development of statistical/Monte Carlo uncertainty quantification methods and software. 2001-2004.


Research on the molecular simulation and thermodynamics of supercritical water solutions. 1995-2000.


  • Reagan, M.T., Moridis, G.J., Elliott, S.M., and Maltrud, M., “Contributions of Oceanic Gas Hydrate Dissociation to the Formation of Arctic Ocean Methane Plumes,” J. Geophys. Res. Oceans, 116, C09014, doi: 10.1029/2011JC007189, 2011.
  • Elliott, S.M., Maltrud, M., Reagan, M.T., Moridis, G.J., Cameron-Smith, P.J., “Marine Methane Cycle Simulations for the Period of Early Global Warming,” LBNL-4239E, J. Geophysical Res. Biogeo., 116, G01010, 2011. 
  • Elliott, S.M., Reagan, M.T., Moridis, G.J., Cameron-Smith, P.J., “Geochemistry of Clathrate-Derived Methane in Arctic Ocean Waters,” LBNL-3389E, Geophys. Res. Lett., 37, L12607, doi:10.1029/2010GL043369, 2010.
  • Reagan, M.T. and G. J. Moridis, “Large-Scale Simulation of Methane Hydrate Dissociation along the West Spitsbergen Margin,” Geophys. Res. Lett., 36, L23612, doi:10.1029/2009GL041332, 2009.
  • Moridis, G.J., Collette, T.S., Boswell, R., Kurihara, M., Reagan, M.T., Sloan, E.D., and C. Koh, “Toward Production From Gas Hydrates: Assessment of Resources, Technology, and Potential” LBNL-00161E, SPE 114163, SPE Journal, 12(5), 745-771, doi:10.2118/114163-MS, 2009.
  • Reagan, M.T. and G.J. Moridis, “The dynamic response of oceanic hydrate deposits to ocean temperature change,” LBNL-01026E, J. Geophys. Res. Oceans, 113, C12023, doi:10.1029/2008JC004938, 2008.
  • Reagan, M.T. and G.J. Moridis, “Oceanic Gas Hydrate Instability and Dissociation Under Climate Change Scenarios,” LBNL-62999, Geophys. Res. Lett., 34, L22709, doi: 10.1029/2007GL031671, 2007.


  • “Getting to the Bottom of Methane,” (guest) PRI's Living On Earth, March 12, 2010.
  • “’Arctic Armageddon’ Needs More Science, Less Hype,” Science, 329, 5992, 620-621, 2010.
  • “A Sleeping Giant?” Nature Reports Climate Change, doi:10.1038/climate.2009.24 (April 2009).
  • “The Hydrate Hazard,” Nature Reports Climate Change, 3, 14, doi:10.1038/climate.2009.11 (February 2009).


  • “Massively Parallel, Field-Scale Simulation of Production from an Oceanic Gas Hydrate Deposit, and the Assessment of Production Challenges,” (invited) Statoil Research Summit 2012, Trondheim, Norway, 15-17 Oct 2012. 
  • “The Response of Marine Clathrates to Climate Change: Beyond the ‘Clathrate Gun,’” (invited) Climate Sensitivity on Decadal to Century Timescales: Implications for Civilization, Aspen Global Change Institute, Aspen, CO, 24 May 2012.
  • “Simulation of Arctic Gas Hydrate Dissociation in Response to Climate Change: Basin-Scale Assessment,” OTC 22153, 2011 Arctic Technology Conference, Houston, Texas, USA, 7–9 February 2011.
  • “Oceanic Hydrates, Methane, Ocean Chemistry, and Climate,” Gordon Research Conference on Natural Gas Hydrates, Colby College, Waterville, ME, 6-10 June 2010.
  • “The Effect of Reservoir Heterogeneity on Gas Production From Hydrate Accumulations in the Permafrost,” SPE 132649, 2010 SPE Western North American Regional Meeting, Anaheim, California, 27-29 May 2010.
  • “Climate Change and the Response of Oceanic Hydrate Accumulations,” (invited) European Geosciences Union General Assembly, Vienna, Austria, 7 May 2010.