Re-use of offshore infrastructure and platforms: assessing value to communities, industry and the environment

Maui A platform in Taranaki Bight. © Shell New Zealand

We have investigated the regulatory, social, economic and environmental considerations relating to decommissioning offshore oil and gas infrastructure in Taranaki, New Zealand. 

Project Leader: Dr Alison Lane, ERM New Zealand Limited / Elemental Group 

Duration: October 2016 – March 2018 
Budget: $247,000 
Status: Completed 

Five offshore oil and gas installations in Taranaki are approaching the end of their life and are expected to be decommissioned between 2020 and 2046.  

Our research explored the impact of three decommissioning options – complete removal, partial removal, or not removing offshore structures. We reviewed:  

  • International frameworks for re-use and decommissioning. 
  • Ocean floor ecological studies and marine mammal sightings.  
  • Cost-benefit analysis of decommissioning options. 
  • Community attitudes and awareness.  

In some regions in the world, there is evidence of environmental benefits if decommissioned infrastructure is left in place. We found no evidence that these benefits would apply in the Taranaki marine ecosystem. However, our research did not include fish surveys, due to safety issues from working close to offshore structures.  

The New Zealand Government is developing a national framework for decommissioning and this will require consultation and engagement with New Zealanders and stakeholder groups. Our studies revealed a limited awareness of the implications of different decommissioning options. We held hui with local iwi who indicated a clear desire to be equal parties in these discussions. 

We recommend that the oil and gas industry engage with iwi representatives and the wider community to ensure that their voices, values and opinions are incorporated into decommissioning plans. 

Report

We invite you to read the final research report completed in March 2018. 

Latest news and updates

Ngā mihi maioha, Sir Rob

Te tai ra, Te tai ra
Te tai ra e pari ana ki hea
E pari ana  ki te kauheke tangata
Ka rongo te ao
Kua rongo te po

E te rangatira

Kua riro atu koe ki te kapunipunitanga o te tangata. Ko te reo o te taiao tera e rangona atu i te mūnga o tōu na reo.

Ka waiho ma maumahara koe e mahara ki ou mahi rangatira i te wa o te ora. No reira, Haere atu ra, haere atu ra, okioki mai.

Innovation Fund is open for blue economy initiatives

We invite NZ-based researchers, industry, stakeholders and Māori to submit expressions of Interest (EoIs) for research projects that will contribute directly to building a ‘blue economy’ in Aotearoa.

1,800+ schoolchildren (virtually) explored marine science for Seaweek

Last week (3–5 March), schoolchildren from across New Zealand travelled with LEARNZ and the Sustainable Seas Challenge to discover what's threatening mussels/kuku or kūtai, a taonga species, in Ōhiwa Harbour, and how science and mātauranga Māori are being combined by local kaitiaki to understand – and address – the problem.