Indonesian state-controlled energy firm Pertamina has made a formal bid for control of the Mahakam gas block in east Kalimantan, a key supply source for the 22.6mn t/yr Bontang LNG export venture. Pertamina has submit- ted a proposal to the energy ministry to take a 51pc stake in the Mahakam block in 2017, when operator Total’s exploration and development permit
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