Cosmo Oil Co., Ltd.

Daido Nenryo K.K

Daitoh Trading Co., Ltd.

Goldman Sachs Japan Co., Ltd.

Hanwa Co., Ltd.

Idemitsu Kosan Co., Ltd

Itami Sangyo Co., Ltd.

Itochu Enex Co. ltd.

JX Nippon Oil & Energy Corporation

Kamei Corporation

Kanematsu Corporation

Kokusai Oil & Chemical Co.,Ltd.

Kokurakosan Energy Co., Ltd.

Kygnus Sekiyu K.K.

Marubeni Corporation

Marubeni Energy Corporation

Mitsubishi Corporation

Mitsui Co., Ltd.

Mitsui Oil Co., Ltd.

Mitsuuroko. Co., Ltd.

Morgan Stanley Capital Group Inc.

Nakabishi Sangyo Co., Ltd.

Okachi & Co., Ltd.

San-Ai Oil Co., Ltd.

Shell Japan Trading Ltd.

Showa Shell Sekiyu K.K.

Sinanen Co., Ltd.

SK Energy Asia Pte Ltd

Sojitz Corporation

Sojitz Energy Corporation

Sumitomo Corporation

Taiyo Oil Co., Ltd.

Toyo Energy Co., Ltd.

*As of Dec. '11