Harbour has operated production and material organic growth opportunities in Indonesia.

In 2024, production averaged 5 kboepd from Indonesia.

In 2025, Harbour announced that it entered into a Sale and Purchase Agreement to sell its operated interests in the producing Natuna Sea Block A field and the Tuna development project in Indonesia to Prime Group. The sale is subject to customary regulatory approvals and completion is targeted for Q2 2026.


Where we are active in Southeast Asia

View information on active assets in Southeast Asia

Andaman, Indonesia

Non-operated

Asset Operator Harbour equity Associated fields/discoveries
South Andaman Mubadala Petroleum 20.0%
Andaman I Mubadala Petroleum 20.0%

Operated

Asset Operator Harbour equity Associated fields/discoveries
Andaman II Harbour 40.0% Timpan
Central Andaman PSC Harbour 60.0%

Photo credit: Operator, Mubadala

Tuna Block, Indonesia

Operated

Asset Operator Harbour equity Associated fields/discoveries
Tuna Block Harbour 50.0% Kuda Laut and Singa Laut

Block A, Indonesia

Operated

Asset Operator Harbour equity Associated fields/discoveries
Block A Harbour 28.70% Anoa, Gajah Baru, Naga, Pelikan, Bison, Iguana and Gajah Puteri

Recent activity

In August 2024, a multi-well exploration and appraisal campaign across our Andaman Sea acreage was completed, resulting in material gas discoveries at Layaran and Tangkulo on Andaman South (Harbour 20%). In addition, Harbour secured a 60% operated interest in the Central Andaman licence, which includes an extension of the Layaran discovery.

Harbour and its partners are now evaluating potential development options, including an accelerated development at Tangkulo. As at year end 2024, Harbour’s 2C resource for the Andaman area stood at 143 mmboe.