Description of Conduct

The applicants sought authorisation to discuss, make and give effect to arrangements regarding the sequencing and timing of scheduled maintenance and associated shutdowns and outages at six liquefied natural gas (LNG) facilities in Western Australia and the Northern Territory. The LNG Facilities form part of the Gorgon and Wheatstone, Ichthys, Prelude, North West Shelf and Pluto LNG projects, each of which involves the subsea extraction of natural gas, its processing and conversion to LNG for export.

On 21 December 2017, the ACCC issued a draft determination proposing to grant authorisation for five years.

On 2 March 2018, the ACCC granted conditional authorisation for five years. The condition requires the applicants, except Shell Australia Pty Ltd, the operator of the Prelude floating LNG facility, to publicly disclose scheduled maintenance information that they have shared with one another.

A copy of the ACCC’s determination and interested party submissions are available below.


  • Inpex Operations Australia Pty Ltd
  • Shell Australia Pty Ltd
  • Woodside Energy Limited
  • Chevron Australia Pty Ltd

Authorisation number(s)

  • AA1000396-1
  • AA1000396-2