Decommissioning Insight 2017

DECOMMISSIONING INSIGHT 2017

Figure 15: Historical Variation in Well Plugging and Abandonment Cost Forecasts in the Central and Northern North Sea and West of Shetland

50

Average Forecast Cost Platform Wells

45

Average Forecast Cost Suspended Exploration and Appraisal Wells

40

Average Forecast Cost Subsea Development Wells

35

30

25

20

15

10

5

Estimated Cost per Well (£ Million - 2016 Money)

0

2013 2014 2015 2016 2017

2013 2014 2015 2016 2017

2013 2014 2015 2016 2017

Platform

Suspended Exploration and Appraisal

Subsea Development

Source: Oil & Gas UK, Asset Stewardship Survey

Well P&A

2016 Survey Average

2017 Survey Average

Platform wells

£5.3 million £10.7 million £6.8 million

£4.9 million £10.1 million £6.9 million

Subsea development wells

Suspended exploration and appraisal wells

Figure 16: Historical Variation in Well Plugging and Abandonment Cost Forecasts in the Southern North Sea and Irish Sea

25

Average Forecast Cost Platform Wells Average Forecast Cost Suspended Exploration and Appraisal Wells Average Forecast Cost Subsea Development Wells

20

15

10

5

Estimated Cost per Well (£ Million - 2016 Money)

0

2013 2014 2015 2016 2017

2013 2014 2015 2016 2017

2013 2014 2015 2016 2017

Platform

Suspended Exploration and Appraisal

Subsea Development

Source: Oil & Gas UK, Asset Stewardship Survey

Well P&A

2016 Survey Average

2017 Survey Average

Platform wells

£2.9 million £8 million £7.3 million

£2.8 million £7.8 million £3.4 million

Subsea development wells

Suspended exploration and appraisal wells

36

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