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Figure 24: Forecast for Mattress and other Subsea Infrastructure Decommissioning on the
UK and Norwegian Continental Shelves
0
500
1,000
1,500
2,000
2,500
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Mattresses to be Decommissioned
Southern North Sea and Irish Sea
Central and Northern North Sea
and West of Shetland
Norwegian Continental Shelf
Source: Oil & Gas UK
Increased Uncertainty
in Forecasts
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Tonnage of other Subsea Infrastructure to be Removed
Norwegian Continental Shelf
Central and Northern North Sea
and West of Shetland
Southern North Sea and Irish Sea
Source: Oil & Gas UK
Increased Uncertainty
in Forecasts
Mattresses (Number)
2016 to 2025
Other Subsea Infrastructure
(Tonnes) 2016 to 2025
Central North Sea
5,979
56,714
Northern North Sea and
West of Shetland
1,162
1,697
Southern North Sea and Irish Sea
4,526
4,268
Norwegian North Sea
188
1,745
Norwegian Sea
No activity
No activity
Barents Sea
No activity
No activity
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4
5
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