Oil & Gas UK Decommissioning Insight 2014

DECOMMISSIONING INSIGHT 2014

Historical Variation in the Removal Cost per Tonne Forecasts on the UK Continental Shelf

The average forecast cost per tonne for both topsides and substructures has seen a relatively small variation across the last four surveys in the CNS and NNS areas ( Decommissioning Insight Reports 2011 to 2014). Figure 15: Historical Variation in the Removal Cost per Tonne Forecasts for Topsides and Substructures in the Central and Northern North Sea (2011 to 2014 Surveys)

14,000

12,000

10,000

8,000

6,000

4,000

2,000 Estimated Cost per Tonne (£)

0

2011 2012 2013 2014

2011 2012 2013 2014

Topside

Substructure

Average Forecast Topside Removal Cost Per Tonne Average Forecast Substructure Removal Cost Per Tonne Range in Cost Forecasts

Source: Oil & Gas UK

Removal Cost per Tonne

2013 Average

2014 Average

Topsides

£4,100 £4,300

£2,900 £4,300

Substructures

30