Harbour Energy plc
Significant gas discovery at Layaran-1, Indonesia
19 December 2023

Harbour Energy plc is pleased to note operator Mubadala Energy’s announcement that the Layaran-1 well has made a significant gas discovery on the South Andaman licence (Harbour 20 per cent), offshore North Sumatra, Indonesia.

Layaran-1 is the first of a four well exploration campaign targeting the same Oligocene play as the
successful Timpan-1 well drilled on Andaman II (Harbour operator, 40 per cent) in 2022.

The rig will now move to drill the Harbour operated Halwa and Gayo wells on Andaman II.


Harbour Energy
Elizabeth Brooks, Head of Investor Relations
Tel: +44 20 3833 2421

Patrick Handley
Will Medvei
Tel: 020 7404 5959

Notes to editors
The partners in the South Andaman II licence are Mubadala Energy (operator, 80 per cent interest)
and Premier Oil South Andaman Limited, a Harbour Energy Company (20 per cent).

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