The Crux project will be developed to supply backfill gas (LNG, LPG and Condensate) to the Prelude Floating Liquefied Natural Gas (Prelude FLNG) facility. The project consists of a not normally manned (NNM) platform with five production wells, in ocean waters approximately 165 m deep. The facility will be connected to Prelude via a 165 km export pipeline.

Crux will be operated remotely from the Prelude FLNG facility.


The frontend engineering design (FEED) process has commenced and a final investment decision (FID) on whether to proceed is anticipated in 2020. Crux is expected to have at least a 20-year lifespan. Future investment decisions could extend the life of the project.

Crux Project development timeline

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Crux Project development timeline.
Detail 1

Offshore Project Proposal (OPP) & FEED

Completion of the Offshore Project Proposal review process and public comment period. Front End Engineering Design has commenced.

Detail 2

Final Investment Decision

The Final Investment Decision is expected in 2020.

Detail 3


Foundation development drilling is expected to commence in 2021. Several key components will be constructed offsite and transported to location. The Crux platform will then be installed and the export pipeline between the Prelude FLNG facility and Crux will be installed and commissioned.

Detail 4


Start-up is expected to take place approximately 5 years after the Final Investment Decision. There will be ongoing operations, surveillance and maintenance throughout the life of the project (which is at least 20-years).

Detail 5


At the end of the project (approximately 20 years) the well will be abandoned, and the platform, subsea facilities and export pipeline will be decommissioned.

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About Shell

Shell Group has been in Australia since 1901 and has continued to evolve to meet the changing needs of the Australian and international markets. Today, Shell is focused on the exploration, development and production of liquefied natural gas (LNG), domestic gas and associated products. Learn more here.

Shell’s joint venture partners for the Crux project are SGH Energy and Osaka Gas.

About the OPP

Crux is an offshore project which requires Government approval. Shell has developed the Offshore Project Proposal (OPP), which has been submitted to the National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA) as part of the first stage of the approval process.

NOPSEMA has decided that Shell may release the Offshore Project Proposal for public comment. You can view the full document here.

Learn more about the OPP process and purpose here.

More in the crux project

Why an Offshore Project Proposal?

Find out why Shell is required to submit an Offshore Project Proposal for the Crux Project.

Project Development

Read about the key development stages of the Crux Project over its lifespan.