OGUK Decom Insight Report 2021

Figure 9a – Average Forecast Well Decommissioning Cost in the CNS, NNS,& WOS (2021-30)

4. The UK in detail

Average= £8.14m Median=£8.69m

14

Average= £4.69m Median=£3.78m

Figure 8 – Well Decommissioning Activity in the UKCS (2021-30)

12

Average= £4.50m Median=£3.44m

10

300

Platform Wells - Forecast Subsea Wells - Forecast Suspended Subsea Wells - Forecast

8

250

Average= £2.91m Median=£2.80m

6

Average= £8.56m Median=£9.20m

Average= £2.95m Median=£3.43m

Average= £7.99m Median=£8.33m

4

200

Estimated Cost per Well

2

Average= £4.77m Median=£5.55m

Average= £2.98m Median=£3.11m

150

0

2019 2020 2021

2019 2020 2021

2019 2020 2021

Platform

Subsea

E&A

100

Source:OGA& OGUK

Figure 9b – Average Forecast Well Decommissioning Cost in the SNS & IS (2021-30)

Number of wells to be decommissioned

50

14

0

2021 2022 2023 2024 2025 2026 2027 2028 2029 2030

Average=£6.06m Median=£6.33m

Source: OGA & OGUK

12

Average=£5.42m Median=£5.09m

10

Average=£2.45m Median=£2.97m

NNS & WoS

CNS

SNS & IS Sub-Totals

%

Well Type

8

Average=£3.34m Median=£3.35m

6

Platform Well Subsea Well

275 208

325 319

483

1,083

61% 33%

Average=£2.45m Median=£3.04m Average=£2.34m Median=£2.70m

EstimatedCostperWell (£Million -2020Money)

34

582

Average=£6.00m Median=£6.28m

4

Suspended E&A

2

Average=£3.25m Median=£3.37m

32

51

55

117

7%

Average=£2.88m Median=£2.38m

0

2019

2020

2021

2019

2020

2021

2019

2020

2021

Total

515

695

572

1,782

100%

E&A

Subsea

Platform

Source:OGA&OGUK

DECOMMISSIONING INSIGHT 2021

14