Meanwhile CNOOC and PetroChina have each done multi-billion-dollar deals tied to the development of specific gas projects in Australia, blurring the line between investments and supply contracts.

• 同时，中海油（CNOOC）和中石油各自谈成了多宗达几十亿美元的合同，这些在澳大利亚发展天然气的项目模糊了投资与供应合同之间的界限。