Singapore Indonesia pipeline gas cut: what it means for supply

Pipeline gas from Indonesia to Singapore was cut on Saturday, 24 October. Indonesia's upstream regulator SKK Migas told CNA that 31 million standard cubic feet a day, 15 million from Natuna and 16 million from Sumatra, is being diverted to domestic power. Natuna gas goes to PLN Batam through the WNTS–Pulau Pemping–Batam pipeline. Sumatra gas goes through the TGI pipeline to Batam, Bintan and Sumatra.

Indonesia's position. On 26 October Energy and Mineral Resources Minister Bahlil Lahadalia said the cut is about 8% of the 409.55 million standard cubic feet a day supplied through pipelines from the Natuna Sea and mainland Sumatra. He said it stays within the minimum limits allowed by contracts, and that a 10% cut would have breached the contract. He gave maintenance shutdowns and domestic demand as the reasons. Asked if the cut is permanent, he said the situation 'remains fluid'. He also said force majeure circumstances can arise, but he did not say Indonesia has invoked it. SKK Migas cited Article 8, Paragraph 1 of the Oil and Gas Law and said it would monitor developments daily.

Singapore's position. According to EMA, the total reduction is 17 billion British thermal units a day (bbtud) over 18 days. That is less than 2% of Singapore's daily gas demand of more than 1,000 bbtud. EMA says contingency plans are in place and Singapore GasCo is ready to import more LNG at any time. Prime Minister Lawrence Wong said on 25 October that Singapore expects all parties to honour their commitments, and that the gas importer will take the necessary steps to protect its rights under the contracts.

Why it matters. Natural gas generates about 95% of Singapore's electricity. In 2025 piped gas was 43% of gas imports and LNG was 57%. Minister Tan See Leng said the cut is unlikely to move electricity prices much in the short term, because much of Singapore's gas is priced against global benchmarks. All four analysts CNA spoke to agreed the immediate effect should be limited. One said that if extra LNG has to be bought on the spot market, prices could be disrupted for a short time, but the volume is 'fairly modest'.

What is still open. The contracts with Indonesia run until the end of 2028. Prateek Pandey of Rystad Energy says the bigger test for Singapore may come after 2028, when the contracts start expiring. In 2024 no single country supplied more than 30% of Singapore's gas imports.

Our page on the US natural gas future (Henry Hub) is here: https://freekonomist.com/en/commodities/natgas/. It is a US benchmark, not the gas price in Singapore. The average view of market opinion leaders is here: https://freekonomist.com/en/crowd/.

Confirmed facts

• Indonesia began cutting pipeline gas exports to Singapore on 24 October 2026: 31 million standard cubic feet a day, of which 15 million from Natuna and 16 million from Sumatra.^[3][4]
• Natuna gas is diverted to PLN Batam through the WNTS–Pulau Pemping–Batam pipeline; Sumatra gas goes through the TGI pipeline to meet needs in Batam, Bintan and Sumatra.^[3][4]
• SKK Migas said the move is meant to 'safeguard the reliability of domestic gas supplies for electricity generation', cited Article 8, Paragraph 1 of the Oil and Gas Law and said it would monitor developments daily.^[3][4]
• Minister Bahlil Lahadalia, 26 October: the cut of 31 million standard cubic feet a day is about 8% of the 409.55 million supplied through pipelines from the Natuna Sea and mainland Sumatra; it is within the minimum contractual limits, and a 10% cut would have breached the contract.^[1]
• The minister gave maintenance shutdowns and domestic demand as the reasons; asked whether the cut would be permanent, he said the situation 'remains fluid'.^[1]
• The minister raised the possibility of force majeure but did not say Indonesia had invoked it; asked about a conflict, he said there is none.^[1]
• EMA says the total reduction is 17 billion British thermal units a day over 18 days, less than 2% of Singapore's daily gas demand of more than 1,000 bbtud.^[3]
• EMA says contingency plans are in place; in recent months there were reductions of 20 to 100 bbtud from planned or urgent maintenance, replaced with other sources without incident, and Singapore GasCo is ready to import more LNG at any time.^[3]
• Gas importer Gas Supply said deliveries to its customers were affected by temporary reductions from its Indonesian upstream supplier; it did not say how many customers or for how long.^[3]
• Natural gas generates about 95% of Singapore's electricity.^[2][3][4]
• In 2025 piped gas was 43% of Singapore's gas imports and LNG was 57%.^[3][4]
• Prime Minister Lawrence Wong, 25 October: Singapore expects all parties to honour their commitments, and its gas importer will take the necessary steps to protect its rights and interests under the contracts.^[1][2]
• Minister Tan See Leng, 25 October: the cuts are unlikely to have much impact on electricity prices in the short term, as much of Singapore's gas is priced against global benchmarks.^[2]
• All four analysts who spoke to CNA said the cut is unlikely to significantly affect Singapore's energy security or electricity prices.^[2]
• David Broadstock of ESI said short-term price disruption is possible if additional LNG is bought on the spot market, but the volume and any change in costs would be 'fairly modest'. He said the cut itself would not affect international gas prices.^[2]
• Indonesia's existing gas supply contracts with Singapore run until the end of 2028.^[1][4]
• Prateek Pandey of Rystad Energy said the latest cut should be 'manageable' for Singapore, and the bigger test could come after 2028, when existing contracts start expiring.^[2]
• In 2024 no single country accounted for more than 30% of Singapore's gas imports; a second LNG terminal is expected to be operational by the end of the decade.^[4]

Implications

• ConfirmedGas supply from Indonesia to Singapore has been reduced since 24 October.
• ConfirmedSingapore's regulator and four analysts quoted by CNA expect a limited short-term effect on supply and electricity prices.
• Our readingIf the cut lasts or deepens, Singapore may need more LNG on the spot market, which would add some cost.

Still unknown

• How long the cut lasts: the minister calls the situation fluid, and importer Gas Supply gave no end date.
• How many customers of importer Gas Supply are affected.
• Whether either side will invoke force majeure, and what steps importers take under their contracts.
• What happens to supply and contracts after 2028.
• How the two sets of figures relate: Indonesia's is in cubic feet of gas, Singapore's in energy units. The pages we opened do not explain it.

Who it affects

Singapore, Indonesia, Southeast Asia. People who follow energy and power prices in Southeast Asia, work with gas and LNG, or live in Singapore

Sources

1. The Straits Times: Indonesia defends gas export cuts; says existing contracts have not been breached October 26, 2026 · media
2. CNA: Indonesia's gas cuts to Singapore put spotlight on domestic energy needs, economic trade-offs October 26, 2026 · media
3. CNA: Reduction in Indonesia gas supply amounts to less than 2% of Singapore's total daily demand: EMA October 24, 2026 · media
4. CNA: Indonesia reduces gas exports to Singapore in order to 'safeguard reliability' of domestic supplies October 24, 2026 · media