The company owns a 55% operating stake in the Stanley liquids stripping development in Block PRL 4 owned jointly with Talisman Energy, and a 45% operating interest in the Elevala-Ketu wet gas fields in nearby Block PRL 21.
Horizon also owns 25% interests in exploration blocks PPL 259a and 259b.
Chairman Fraser Ainsworth said the company has established a gas resource in PNG, independently audited, of 1.3