UK Energy Giant Reveals Reason for Rp3.5 Trillion Natuna Asset Sale
JAKARTA – Harbour Energy, a UK energy company, has completed the sale of a portion of its upstream oil and gas assets in Indonesia to Prime Group in a transaction worth $215 million or approximately Rp3.5 trillion.
The assets sold include Harbour’s 28.67% operational stake in Natuna Sea Block A and 50% operational stake in the Tuna Field development project in Indonesian waters.
Harbour Energy management stated that the transaction is part of the company’s strategy to streamline its global portfolio and allocate capital to higher-value assets.
“Selling the majority of our assets in Indonesia marks a strategic milestone for Harbour,” said Harbour Indonesia Managing Director Steve Cox in a company statement, as reported by Upstream, a specialist energy publication, on Thursday, 28 May 2026.
He added that the move reflects the company’s disciplined approach to managing its business portfolio amid global energy industry dynamics.
“This transaction demonstrates our disciplined approach to portfolio management,” he said.
Despite divesting most of its assets in Indonesia, Harbour will maintain its presence through exploration and development assets in the Andaman Sea region.
On the other side, the acquisition strengthens Prime Group’s position in the national energy sector. The company already had business interests in several Indonesian oil and gas assets, including Natuna Sea Block B.
Industry observers noted that Prime Group’s move shows increasing interest from domestic companies to take on a larger role in managing strategic energy assets domestically. The acquisition is also seen as strengthening the position of national companies in developing Indonesia’s oil and gas resources amid rising long-term energy needs.
Harbour Energy is one of the UK’s largest independent energy companies with a global portfolio of assets. In recent years, the company has pursued asset optimisation strategies to improve efficiency and focus investments on the most prospective regions.
“I am grateful to our colleagues in Indonesia for their years of work,” Cox said.
The completion of this transaction marks a new chapter in the management of Natuna and Tuna Field oil and gas assets, which have long been a key part of energy development in Indonesian waters.