By Ejekwu Chidiebere
Energy Window International (Media) – Reports Eni as saying that its Geliga‑1 discovery offshore Indonesia has been successfully tested. It said that A Drill Stem Test (DST) carried out confirmed outstanding reservoir productivity, adding that the results have demonstrated high deliverability which will further strengthen its strategic potential of Indonesia’s Kutei Basin to supporting accelerated development options leveraging existing and planned infrastructure.
Energy Window International (Media) gathered that during DST, the tested reservoir flowed at rates of up to 60 million standard cubic feet per day (MMSCFD), constrained by the rig facilities, and with very limited pressure drawdown which also confirms excellent deliverability. Eni said that the Geliga‑1 well is estimated to produce, based on the DST results, a sustainable rate of approximately 200 MMSCFD of gas and about 10,000 barrels per day (bpd) of condensate.
Geliga‑1 Eni says is situated in the Ganal Block within the Kutei Basin, offshore Indonesia, about 70 km off the coast of East Kalimantan. The company said in an email statement that the Geliga well was drilled in approximately 2,000 m of water, reaching a total depth of about 5,100 m before intersecting a substantial gas column in the targeted Miocene interval which it said was characterized by excellent petrophysical properties. It added that the well test results further confirmed the preliminary assessment of approximately 5 trillion cubic feet (Tcf) of gas and 300 million barrels of condensate in‑place within the encountered interval.
The new discovery according to the Italian firm is located next to the undeveloped Gula gas discovery, estimated according to the company, at approximately 2 Tcf of gas in place and 75 million barrels of condensate. Adding that early evaluations indicated that, when combined, Geliga and Gula could underpin incremental production of around 1,000 MMSCFD of gas and 80,000 bpd of condensate.
Eni said a “Plan of Development” (POD) was ongoing and expected to be submitted to the Government of Indonesia in the coming weeks. The POD according to Eni aims to enable the fast‑track development of a third production hub in the prolific Kutei Basin, alongside the Gendalo and Gandang gas project (South Hub) and the Geng North and Gehem fields (North Hub), by leveraging the development concept currently being implemented for the North Hub project.
Eni also said that studies were underway to assess liquefaction capacity at the Bontang plant beyond that already included in the North Hub POD, potentially enabling the reactivation of up to two additional LNG trains currently out of service.
The Geliga‑1 discovery Eni says is located in the Ganal PSC, which is also under its operation with an 82% interest, while Sinopec holds the remaining 18%. Eni says the Ganal PSC was included in a portfolio of 19 blocks (14 in Indonesia and 5 in Malaysia) that will be transferred to Searah, the Eni–PETRONAS jointly controlled company announced in November 2025. It said that Searah would combine assets, technical know‑how and financial capacity to support growth and reinforce its presence in Southeast Asia. Its business plan includes the development of approximately 3 billion barrels of oil equivalent (boe) of discovered resources, alongside the unlocking of significant exploration potential. Transition and set‑up activities are progressing smoothly, with no critical issues currently anticipated. The transaction closing remains confirmed for Q2 2026. The valorization to a third party of a 10% stake in its Indonesia portfolio withheld from the Searah transaction is underway and expected to be concluded in 2026. The Geliga discovery adds to the value of this sale, Eni said.
The company says that it has been present in Indonesia since 2001 and currently holds a diversified upstream portfolio across exploration, development and production activities. Says that its net production is approximately 90,000 barrels of oil equivalent per day, mainly from the Jangkrik and Merakes fields offshore East Kalimantan.
