1. Cardinal Gas Storage Partners LLC by Hartree Partners LP
2. Centrica PLC
3. China National Petroleum Corporation
4. Chiyoda Corporation
5. Costain Group PLC
6. E.ON SE
7. Enbridge Inc.
8. Engie SA
9. Foster Wheeler AG
10. John Wood Group PLC
11. Johnson Matthey PLC
12. McDermott International Inc.
13. Mitsubishi Heavy Industries
Ltd.
14. NAFTA A.S.
15. Royal Vopak N.V.
16. Samsung Heavy Industries Co. Ltd.