"If there is not an agreement, then we can take over the block and give it to someone else," Chief Economics Minister Aburizal Bakrie told reporters.

Other companies, including PetroChina, which works with Pertamina on the adjacent Tuban joint operating body, have expressed interest in taking over Cepu were it to become available.

The protracted talks over Cepu have put on the backburner the $2 billion-plus development of the Banyu Urip oilfield Indonesia's largest crude discovery in decades.

Existing