branch OOGC America LLC (Alaska (US)) | details | |
branch CNOOC ENERGY U.S.A. LLC (Wyoming (US)) | details | |
branch CNOOC ENERGY U.S.A. LLC (Wyoming (US)) | details | |
branch CNOOC Energy U.S.A. LLC (Colorado (US)) | details | |
branch CNOOC Energy U.S.A. LLC (Colorado (US)) | details |