ConocoPhillips has sanctioned the development of 4.5 million tons per annum (MTPA) second production train for its Australia Pacific LNG project in Queensland, which is estimated to cost $6bn.

The Australia Pacific LNG project is a coal seam gas to liquefied natural gas (LNG) project and the gross capital cost for the two train project is estimated to be $20bn.

ConocoPhillips is expecting that the Australia Pacific LNG project’s peak production following the start up of the second train is will be 100,000-105,000 barrels of oil equivalent per day.

ConocoPhillips chairman and chief executive officer Ryan Lance said sanctioning of the second train is the final step in the approval process for the project.

"From this point we are committed to the development and construction of all infrastructure and facilities to ensure the first delivery of LNG in 2015," Lance added.

"The Australia Pacific LNG project is on schedule, and is strategically positioned to commercialize its superior CSG reserve position and satisfy Asia’s rapidly growing demand for reliable, cleaner-burning energy.

"The approval of Sinopec Corp.’s additional subscription is testament to the strong growth market in China and the importance of Sinopec Corp. as a key partner."

Under the binding sales agreement with Sinopec and Kansai Electric Power Company, the company will start export LNG from the second train in early 2016.

The sanction for the second LNG train will also include developing gas gathering and processing infrastructures and constructing the second production train by Bechtel.

Following the approval, the ownership of Sinopec stands at 25% and the equity of ConocoPhillips, and Origin Energy in the LNG project is 37.5% respectively.