ADELAIDE, May 14, 2026, 07:32 ACST
Santos Limited (STO.AX) has approved the Agogo Production Facility tie-in project in Papua New Guinea, committing to a gas expansion that will feed the existing PNG LNG system rather than build a new export plant. The approval followed sign-off from the PNG LNG joint venture, in which Santos holds 39.9%.
The timing matters. Santos is trying to keep the market’s attention on production growth and project delivery after earlier operational delays at Barossa and a first-quarter production miss. Its shares closed at A$7.68 on Wednesday, up 1.59%, after rising 0.53% on Tuesday.
A final investment decision, or FID, is the formal go-ahead to spend and build. Santos’ ASX filing showed the Agogo work will include a new 19-kilometre pipeline, two new wells and modifications to the production facility, with first gas targeted in the second quarter of 2028.
Gross capital expenditure is put at about $400 million over three years. Santos’ share is about $160 million, and the company said the spending is already included within its capital expenditure guidance.
The project is expected to add about 135 mmscf/d of capacity. That means million standard cubic feet a day, a common measure of gas flow. Santos’ net share would be about 54 mmscf/d, Reuters reported.
Chief Executive Kevin Gallagher called Agogo a “high-quality development with strong economics” and said it would help convert 66 million barrels of oil equivalent of 2P undeveloped reserves into developed reserves. 2P means proved and probable reserves, an industry estimate of resources expected to be recoverable.
The filing put the expected internal rate of return, a project profitability measure, above 50%. Payback is expected in less than four years from FID, or about two years from first gas.
Brett Darley, Santos’ Australia and PNG chief operating officer, said “key regulatory approvals are in place.” His next checklist is less glamorous: detailed design, two main construction contracts and a temporary construction camp.
The competitive context is PNG LNG, not a standalone race. Santos is working with partners including ExxonMobil PNG, ENEOS Xplora and Kumul Petroleum, while using existing PNG LNG processing and export infrastructure to add feed gas with a smaller build than a fresh LNG development.
Investors already had one eye on bigger moving parts. Reuters reported in April that Santos kept its 2026 production and sales guidance at 101 million to 111 million barrels of oil equivalent, even after Barossa downtime and weather disruptions hit quarterly output.
Saul Kavonic, head of energy research at MST Marquee, said then the market was looking past the revenue miss because Barossa and Pikka were “around the corner.” Agogo is a later-dated piece of the same story: more gas, more reserves moved into production, but not until 2028. Reuters
There is still risk. First gas is two years away, construction contracts are not yet done, and Santos itself said upside depends on reservoir performance. Cost inflation, drilling issues or a slow ramp-up would make the high-return case harder to defend.
Policy risk also hangs over Australian gas names, even if this project is in PNG. Australia said last week that east-coast LNG exporters, including a Santos-operated Queensland project, must reserve 20% of gas for the domestic market from July 2027; analysts quoted by Reuters said the move could lift perceptions of regulatory risk and make future LNG projects less attractive.
For Santos, the message in the Agogo filing was simple enough: use infrastructure it already knows, spend inside guidance, and add feed gas to PNG LNG. The market now has another date circled — second-quarter 2028.
