1. Houston
Formation Evaluation Center (HFE), Schlumberger, 150 Gillingham Lane, Sugar Land, Texas 77478, United States
2. Schlumberger
Rosharon Technology Center (SRC), Schlumberger, 14910 Airline Road, Rosharon, Texas 77583-1590, United States
3. Beijing
Geoscience Center (BGC), Schlumberger, Chuang Xin Building, Beijing Tsinghua Science Park, Beijing 100084, China
4. Schlumberger-Doll Research, Cambridge, Massachusetts 02139, United States
5. Schlumberger, 1325 South Dairy Ashford, Houston, Texas 77077, United States