Italian energy major Eni has reported a substantial natural gas discovery in the Ganal block offshore Indonesia, marking a notable addition to the country’s upstream energy prospects.

According to a company statement released Monday, preliminary estimates suggest the find contains around 5 trillion cubic feet (Tcf) of gas, along with approximately 300 million barrels of condensate. The discovery was achieved through the drilling of the Geliga-1 exploration well, which reached a depth of about 5,100 metres in waters roughly 2,000 metres deep.

The Ganal block discovery lies close to the previously identified Gula gas field, which is estimated to hold around 2 Tcf of gas. The proximity of these resources is expected to play a key role in shaping development strategies, as existing and planned infrastructure in the region could enable faster production timelines and reduced costs.

Eni noted that technical analyses are currently underway to assess options for accelerating development, with a focus on leveraging nearby facilities to optimise project delivery.

Indonesia’s energy minister, Bahlil Lahadalia, said the government has established a dedicated task force to support the swift development of the newly discovered resources. Authorities are targeting the start of production by 2028.

If brought online as planned, the discovery could significantly boost Eni’s gas output in Indonesia, potentially increasing production to around 2,000 million standard cubic feet per day by 2028, up from the current level of roughly 700 million.

Eni has maintained a presence in Indonesia since 2001, with a broad portfolio spanning exploration, development, and production activities across the country’s energy sector.