Natural gas from the Philippines’ Malampaya gas field has resumed flowing to the 1,200MW Ilijan power plant through the restored Tabangao-Ilijan pipeline, according to reports. The resumption is under a six-month interim supply agreement, which the Philippine Department of Energy expects will lower generation costs.
The Malampaya gas field is operated by Prime Energy under Service Contract 38, while the Ilijan power plant is operated by South Premiere Power Corp. (SPPC), according to reports. The previously idled Tabangao-Ilijan pipeline was restored to enable the resumed supply. A ceremony marking the gas resumption was held on September 24, attended by Energy Secretary Sharon Garin, Prime Energy President Donnabel Kuizon Cruz, and LNGPH President Yari Miralao, it is reported. The supply relationship between the Ilijan plant and the Malampaya field reportedly dates back to an original 1997 agreement, predating Malampaya’s commercial production start in 2001.
The interim supply agreement runs from September 1, 2026 through February 25, 2027, a period of six months, while the Ilijan power plant has an installed capacity of 1,200MW. The Philippine Department of Energy estimates that generation charges will fall by about 0.36 Philippine pesos per kilowatt-hour as a result of the resumed supply, according to reports. Domestic natural gas is said to be more than US$4 per million British thermal units (MMBtu) cheaper than imported LNG. Service Contract 38 has reportedly contributed more than US$14 billion in government revenue since 2001.
The resumption is understood as an interim measure to bridge a supply gap while the fourth phase of Malampaya field development, targeted for delivery in the fourth quarter of 2026, is completed.
The case illustrates both the price competitiveness of domestic gas field resources relative to imported LNG, and how supply uncertainty from an aging gas field can directly affect fuel procurement strategy for power generation, according to observers. It is also seen as reinforcing the incentive for the Philippines and other Southeast Asian countries to invest more in domestic gas field development and pipeline infrastructure maintenance to strengthen energy security. The relatively short six-month contract term suggests the measure functions more as a bridge until the fourth-phase development is completed, rather than a fundamental long-term supply stabilization measure. As the Malampaya field has long been regarded as a symbolic asset for Philippine energy security, some observers note that repeated production disruptions like this one could raise broader concerns about the stability of the country’s power supply. This has reportedly led the Philippine government and industry to also discuss a dual-track strategy that pairs further Malampaya development with expanded LNG import infrastructure.
Whether the Malampaya field’s fourth-phase development is completed as planned in the fourth quarter of 2026, enabling stable long-term supply, is the central point to watch. Whether the interim agreement is extended or replaced by a new long-term contract after it expires in February 2027 is also worth monitoring. How much of the resumed supply’s cost benefit is ultimately reflected in consumer electricity rates is another point of interest. The longer-term direction of Service Contract 38’s renewal and follow-on development is also worth watching.