Petronas Found Oil in Suriname’s Gas Block, in 90 Metres of Water

Energy

A Suriname oil discovery has surfaced in the one place nobody was looking for it: the offshore block the country has been presenting as its future gas project. The well sits in water shallow enough to change the economics.

On 24 June, President Jennifer Geerlings-Simons told an energy conference in Paramaribo that Petronas had made another discovery offshore. She called it good news and did not elaborate.

The wires filed it as a gas find. Six days later the Malaysian state oil company published the detail, and the detail is not what the podium said.

What the Suriname oil discovery actually says

In a statement dated 30 June, Petronas set out three wells rather than one. Two were discoveries and the third was an appraisal.

Only one of the three was gas. The Swartzia Aspasia Complex-1 well, drilled about eight kilometres east of the older Sloanea gas find, cut gas-bearing sandstone and tested with what the company called strong deliverability.

The other exploration well, named Caiman-1, “encountered multiple oil-bearing Cretaceous sandstone intervals.” That is the company’s own wording, and it describes oil, not gas.

The third well, Roystonea-2, was an appraisal drilled seven kilometres north of an earlier oil find. Petronas said it confirmed the reservoir extends laterally and tested with strong oil productivity.

Why 90 metres is the number that matters

Caiman-1 was drilled in ninety metres of water. The gas well announced in the same breath was drilled in six hundred and ten.

That is a factor of roughly six point eight, and it is the whole story for anyone weighing the cost. Shallower water generally means cheaper, simpler production hardware than the floating systems a deepwater field demands.

Suriname’s own regulator draws the same line. Staatsolie has noted that developing an offshore gas field is more challenging and complex, technically and economically, than an offshore oil field.

Block 52 spans both. Petronas put the block’s water depths at fifty to one thousand one hundred metres when it announced its first find there, so Caiman-1 sits near the shallow inshore edge of the licence.

The seven months nobody mentioned

Here the timeline repays a close reading. Caiman-1 was not drilled last month, and it was not drilled last week.

According to Staatsolie, the Surinamese state oil company, the well was spudded on 21 July 2025 and plugged and abandoned on 6 December 2025.

Plugging a well is not a verdict. Exploration wells are routinely sealed once they have given up their data, and the rig moves on.

But the state company’s announcement three days later said only that Caiman-1 had “delivered encouraging results.” It named no hydrocarbon at all.

Roughly seven months separate that phrasing from the operator’s confirmation of oil-bearing sandstone. For a country whose bondholders are contractually tied to future petroleum revenue, the gap between “encouraging” and “oil” is not a rounding error.

What it changes, and what it does not

Nothing here is yet a field. A discovery is a well that found rock with hydrocarbons in it, which is a long way from a platform pumping barrels onto a tanker.

Petronas has declared no commercial oil development in Block 52 and has published no resource figure for Caiman-1 alone. The only number it gives is a block-wide total across all eight wells.

What has changed is the shape of the block. Suriname’s public story about Block 52 has been a gas story, anchored on a floating plant that would chill gas into liquid at sea for export around 2030.

The operator now describes a block that supports “multiple oil and gas developments,” with oil-bearing rock at its shallow margin and a separate oil reservoir now appraised and tested. That is a different asset from the one the market has been pricing.

The forward implication is narrow and testable. If Petronas moves an oil development forward on the shelf, Suriname could see barrels from Block 52 on a schedule that does not wait for the gas plant, and from water far cheaper to work than the deepwater fields that made Guyana next door famous.

Watch the funding decision due before the end of this year. It is nominally about gas, and it is now the moment at which the company must say in public what it thinks the oil is worth.

Frequently Asked Questions

Did Suriname announce an oil discovery or a gas discovery?

Both, in effect, but not at the same time: President Geerlings-Simons announced a discovery on 24 June without specifying the hydrocarbon, and most coverage recorded it as gas. Petronas then confirmed on 30 June that one exploration well, Caiman-1, encountered oil-bearing sandstone, while a second, SAC-1, found gas.

Why does the water depth of the Suriname oil discovery matter?

Caiman-1 sits in ninety metres of water, against six hundred and ten metres for the gas well announced alongside it. Shallow shelf water is markedly cheaper and simpler to develop than deepwater, so an oil find at that depth carries different economics from the deepwater projects that dominate the region.

Does this mean Suriname will pump oil sooner?

Not necessarily, because Petronas has not declared a commercial oil development in Block 52, and the country’s first oil is still expected from the separate TotalEnergies-led GranMorgu project in 2028. The Block 52 result changes what the block might eventually become, not the near-term production schedule.