Canadian independent InterOil has delayed final ­investment decisions for its complex Gulf LNG project in Papua New Guinea.

There were originally three elements to the development owned by InterOil and Pacific LNG: a condensate stripping project with Mitsui, a mid-size onshore liquefaction plant with Australia’s Energy World Corporation, and an FLNG scheme partnered by Flex LNG and Samsung Heavy Industries.

However, the owners suffered a setback late last year when the PNG government voiced dissatisfaction with the “fragmented” shape of the development.

At that time InterOil postponed a sanction decision deadline from December 2011 to the end of March 2012.

Now, however, the company has ­extended its project agreements and final investment decision commitments with Mitsui and EWC ­until 30 June and 31 December...