The pipeline was last blown up about 295 km north of gas liquefaction plant on October 30. It was repaired in November and loaded a few cargoes of super cooled gas in early December.
Yemen's oil and gas pipelines have been sabotaged repeatedly since anti-government protests last year created a power vacuum which armed groups exploited, causing fuel shortages and slashing export earnings in the impoverished country.
The 320-km (200-mile) pipeline supplying the $4.5-billion plant has been attacked several times by suspected al Qaeda-linked gunmen after military strikes on Islamist militants. The Balhaf facility, which opened in 2009, has the capacity to supply up to 6.7 million tonnes and delivers LNG, gas-cooled to liquid for export by ship, under long-term contracts to GDF Suez, Total and Korea Gas Corp.