Harbour Energy PLC has announced a significant gas discovery at the Tangkulo-1 exploration well on the South Andaman licence, offshore North Sumatra, Indonesia. The company, holding a 20% interest in the license, expressed satisfaction with the news from operator Mubadala Energy. This discovery follows a major find at the Layaran-1 well in December 2023, further underlining the success of the exploration and appraisal campaign.

The next step involves the rig moving to appraise the Layaran discovery, which will be the final well of the exploration and appraisal campaign. This development marks a positive turn for Harbour Energy PLC and its operations in the region.

For further information, interested parties can contact Elizabeth Brooks, Head of Investor Relations at Harbour Energy PLC, or reach out to Brunswick, represented by Patrick Handley and Will Medvei.

This significant gas discovery at Tangkulo, Indonesia is a promising development for Harbour Energy PLC, following the major find at Layaran-1 well. The company's 20% interest in the South Andaman licence has proven to be a strategic asset, and the upcoming appraisal of the Layaran discovery marks a crucial next step in the exploration and appraisal campaign.