1. U.S. Geological Survey, Helena, Montana 59601, United States
2. Center for Biofilm Engineering, Montana State University, Bozeman, Montana 59717, United States
3. U.S. Geological Survey, Reston, Virginia 20192, United States
4. Biosqueeze Inc., Butte, Montana 59701, United States
5. Department of Microbiology and Cell Biology, Montana State University, Bozeman, Montana 59717, United States
6. Department of Chemical and Biological Engineering, Montana State University, Bozeman, Montana 59717, United States
7. Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, Arizona 85721, United States
8. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
9. Geology Department, Amherst College, Amherst, Massachusetts 01002, United States
10. Isotech/Stratum Reservoir, Champaign, Illinois 61821, United States
11. Energy Research Institute, Montana State University, Bozeman, Montana 59717, United States
12. Pro-Oceanus Systems Inc., Bridgewater, Nova Scotia B4V 1N1, Canada