1. National Energy Technology Laboratory, Pittsburgh, Pennsylvania 15129, United States
2. ConocoPhillips, Anchorage, Alaska 99501, United States
3. US Geological Survey, Denver, Colorado 80225, United States
4. Japan Oil, Gas and Metals National Corporation, Chiba 261-0025, Japan
5. Pacific Northwest National Laboratory, Richland, Washington 99354, United States
6. West Virginia University, Morgantown, West Virginia 26506, United States