
The deal would have seen the Chinese state-owned firm buy up to three million tonnes of liquefied natural gas per year from the Australian offshore project for up to two decades.

While PetroChina did not immediately offer an explanation for its move Tuesday, observers said the Australian project likely lost some of its financial appeal since it was first conceived in Sept. 2007.
"You can see that when the market is not that favourable, they just drop it like that," said Dr. Jiang.
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