(EnergyAsia, March 25, Wednesday) — Indonesia’s state energy firm Pertamina remains keen on upgrading its Balikpapan refinery, and recently recruited Japan’s Itochu and Dubai-based ETA Star to review plans for the project. Pertamina is considering expanding the refinery by 20,000 b/d to 280,000 b/d, with a technology upgrade to allow for more processing of sour…