The two expansion trains at Corpus Christi will lift the Texan project's capacity by 9 million tonnes per annum to a whopping 22.5MMtpa with the free trade agreement-subjected greentape journey for them underway.

"Cheniere initiated the regulatory process in June 2015 by filing the National Environmental Policy Act pre-filing request with the Federal Energy Regulatory Commission and the FTA and non-FTA approval requests with the Department of Energy," the New York-listed LNG player said.

"Regulatory approvals would be expected in 2017."

Separately, Cheniere unveiled plans to possibly invest in Parallax Enterprises' Louisiana LNG and Live Oak LNG (also in Louisiana) projects which are targeting 5MMtpa each across two trains of 2.5Mt each - creating a total of 10MMtpa of combined output from these Bechtel engineered developments.

"Our latest LNG development projects include two additional liquefaction trains adjacent to our Corpus Christi liquefaction site and four mid-scale liquefaction trains to be developed at two sites located in Louisiana," Cheniere chairman and CEO Charif Souki said.

"This next phase of growth would bring our expected aggregate nominal LNG production capacity to approximately 60MMtpa by 2025.

"We expect that these liquefaction trains could be funded from internally generated cash flows, which would allow us to continue to be one of the lowest cost suppliers of LNG in the market and give us more flexibility in terms of contracting and selling volumes on a more tailored basis to meet the individual needs of global LNG buyers."

Last month Woodside agreed to buy roughly 0.85MMtpa of LNG from Corpus Christi on the start-up of the second train.