Natural gas transportation company Williams Partners announced Friday its plans for an expansion of the Transco pipeline to deliver natural gas to the new liquefied natural gas (LNG) export facilities planned by Cheniere Energy Partners at Sabine Pass in Louisiana.

The expansion will cost about $300,000 and will allow Williams Partners, a subsidiary of Transcontinental Gas Pipe Line Company (Transco), to carry 1.2 billion cubic feet per day to Cheniere Energy's new Sabine Pass Liquefaction project that is currently being developed in Louisiana, with a scheduled launch date in the final quarter of 2015. From the facility and its terminal, natural gas will be exported to a number of international markets. Works on the expansion are expected to be completed in early 2017, subject to regulatory clearance including approval by the Federal Energy Regulatory Commission, Williams Partners said.

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An agreement has been reached between Transco, the largest interstate natural gas pipeline operator, and Sabine Pass Liquefaction, citing Transco as the anchor supplier to the facility. The expansion project will see an existing 200-mile section of the pipeline converted to run in both directions, so that the flow could reach Sabine Pass. Williams Partners has also proposed to construct a new eight-mile lateral pipeline and two compressor stations as part of the expansion.