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., Keen, N.D., Johnson, J.N., "Numerical Simulation of the Environmental Impact of Hydraulic Fracturing of Tight/Shale Gas Reservoirs on Near-Surface Groundwater: Background, Base Cases, Shallow Reservoirs, Short-Term Gas and Water Transport," Water Resources Res., in press, 2015.
  • Reagan, M.T., Moridis, G.J., Freeman, C.M., Pan, L., Boyle, K.L., Keen, N., Husebo, J.A., “Field-Scale Simulation of Production from Oceanic Gas Hydrate Deposits,” Transport in Porous Media, Jun 2014, 1-19, 2014.  
  • 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. 
  • 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.
  • 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).


  • “Numerical Simulation of Subsurface Transport and Groundwater Impacts from Hydraulic Fracturing of Tight/Shale Gas Reservoirs,” H51Q-07, AGU Fall Meeting 2014, San Francisco, CA, 15-19 Dec. 2014.
  • “Subsurface HF Migration Modeling,” EPA-DOE-USGS Hydraulic Fracture Webinar Series, 27 Jan 2014.
  • “Analysis of the Potential Environmental Impact of Hydraulic Fracturing on Groundwater: Investigations of Coupled Flow, Geomechanics, and Contaminant Transport,” A54H-05, AGU Fall Meeting 2013, San Francisco, CA, 9-13 Dec 2013.
  • “Field-Scale, Massively Parallel Simulation of Production from Oceanic Gas Hydrate Deposits,” OS34A-07, AGU Fall Meeting 2012, San Francisco, CA, 9-13 December 2012.
  • “Massively Parallel Simulation of Field-Scale Oceanic Gas Hydrate Deposits,” 2012 TOUGH Symposium, Berkeley, CA, 17-19 September 2012.
  • “Massively Parallel Simulation of Field-Scale Oceanic Gas Hydrate Deposits,” AIChE Spring Meeting, Houston, TX, 1-5 April 2012.
  • “Consequences of Hydrate Dissociation in Response to Climate Change,” (poster) 2nd Gordon Research Conference on Natural Gas Hydrates, Ventura, CA, 18-23 March 2012.
  • “Basin-Scale Assessment of Hydrate Dissociation in Response to Climate Change,” 7B.2, 7th International Conference on Gas Hydrates, Edinburgh, UK, 18-22 July 2011.
  • “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.
  • “Oceanic Hydrates, Methane, Ocean Chemistry, and Climate,” Gordon Research Conference on Natural Gas Hydrates, Colby College, Waterville, ME, 6-10 June 2010.
  • “Climate Change and the Response of Oceanic Hydrate Accumulations,” (invited) European Geosciences Union General Assembly, Vienna, Austria, 7 May 2010.