1. ExxonMobil Upstream Research Company, 22777 Springwoods Village Parkway, Spring, Texas 77389, USA
2. ExxonMobil Upstream Business Development Company, USA
3. Institute Français de Recherche L’Exploitation de la Mer, Géosciences Marines, F-29280 Plouzané, France
4. Department of Geology, Utah State University, 4505 Old Main Hall, Logan, Utah 84322, USA
5. Department of Geology, 1475 Jayhawk Blvd., University of Kansas, Kansas 66045, USA