Duyung block, appraisal to S. part of Mako field in offshore W. Natuna Basin, TD 503m, confirmed successful appraisal to Mako gasfield, top reservoir at 381m, DST planned. To be followed by Tambak-1 appr, 15% farmin wells for Coro Energy, partners otherwise Conrad (op) + Empyrean. Asian Endeavour I JU.
Tambak 2 successful appraisal of the Mako gas field with estimate contingent resources of 276Bcf, with a high estimate of 392 Bcf.  (Conrad 76,5% op, Empyrean 8,5%, Coro 15%) in the Duyung PSC, had reached reservoir thickness in the lower unit of reservoir of about 10m and confirmed the same pressure system as Mako South-1.