The environment lobby has been stung by a US$660m fine in the US for its role in one of the largest anti-fossil fuel protests in US history.
Texas-based Energy Transfer also accused Greenpeace of trespass, nuisance and civil conspiracy over the demonstrations nearly a decade ago against the Dakota Access Pipeline.
The lawsuit, filed in state court, argued that Greenpeace was behind an "unlawful and violent scheme to cause financial harm to Energy Transfer".
Greenpeace, which vowed to appeal, said last month it could be forced into bankruptcy because of the case, ending 50 years of activism.
