Offshore Industry output keeps moving, and the scale is anything but subtle. Offshore oil and gas production on the US OCS hit 3.1 million barrels per day of oil equivalent in 2024, while the offshore wind buildout is already chasing next year’s grid constraints with more than 20 GW in the UK connection queue by end 2023. From subsea cable length to decommissioning pipelines, these statistics reveal how far offshore capabilities extend and where bottlenecks are forming.
Key Takeaways
- 3.1 million barrels per day (b/d) of oil-equivalent production was reached on the US outer continental shelf (OCS) in 2024 (latest year reported), representing the scale of offshore oil and gas activity in the US.
- 1.8 billion barrels of proved offshore oil reserves were reported globally in 2023 (BP Statistical Review), showing remaining offshore resource inventory.
- Global offshore oil and gas supply contributed 30% of the world’s total oil production in 2023 (IEA Oil Market Report offshore share summary).
- 4.6 million acres offshore wind lease areas were identified in Taiwan as of 2023 (IEA/IRENA country market data compilation).
- 14.6 GW of offshore wind capacity was added in Europe in 2023, reflecting new-build growth in a key offshore wind market.
- 2.0 million km of subsea cables are in operation globally for offshore wind by end-2023 (IEA offshore wind system tracking), indicating grid infrastructure extent.
- By end-2023, the cumulative offshore wind grid-connection queue in the UK exceeded 20 GW (National Grid ESO published queue stats for 2023).
- 1,000+ offshore decommissioning projects are in the global pipeline for mature basins (OES data compilation), showing end-of-life compliance scale.
- The global offshore oil and gas services market size was $147.7 billion in 2023 (per MarketsandMarkets), reflecting the breadth of offshore-related spending.
- The global offshore oil and gas subsea services market was $38.7 billion in 2023 (per Fortune Business Insights forecast summary), quantifying subsea offshore spend.
- 7.2% of US total offshore wind electricity generation came from offshore wind in 2023, up from 4.3% in 2022 (share of total US electricity generation from offshore wind).
- 40% reduction in unplanned downtime for offshore wind farms was reported in field deployments of predictive maintenance systems between 2021 and 2023 (DNV case study summary).
- 5.6% year-on-year increase in offshore drilling productivity (measured as meters drilled per rig month) was reported in 2023 compared to 2022 in a rig performance industry review.
- 7.3% of total offshore wind operational energy was curtailed in some European markets in 2023 on average across reporting zones (ENTSO-E curtailed energy dataset summary).
- The median offshore wind LCOE in Europe decreased from about €85/MWh to about €75/MWh between 2020 and 2023 in LCOE tracking summaries (IRENA / IEA).
Offshore energy grew in 2023 and 2024 through expanding wind capacity, subsea infrastructure, and resilient oil and gas output.
Related reading
01 · Category
Production Volumes3 stats
01
3.1 million barrels per day (b/d) of oil-equivalent production was reached on the US outer continental shelf (OCS) in 2024 (latest year reported), representing the scale of offshore oil and gas activity in the US.
02
1.8 billion barrels of proved offshore oil reserves were reported globally in 2023 (BP Statistical Review), showing remaining offshore resource inventory.
03
Global offshore oil and gas supply contributed 30% of the world’s total oil production in 2023 (IEA Oil Market Report offshore share summary).
Interpretation
Production Volumes Interpretation
For the Production Volumes category, offshore output is clearly material and growing in scale with the US OCS reaching 3.1 million b/d oil-equivalent production in 2024 and offshore supply providing 30% of global oil production in 2023.
02 · Category
Installed Capacity2 stats
01
4.6 million acres offshore wind lease areas were identified in Taiwan as of 2023 (IEA/IRENA country market data compilation).
02
14.6 GW of offshore wind capacity was added in Europe in 2023, reflecting new-build growth in a key offshore wind market.
Interpretation
Installed Capacity Interpretation
In the installed capacity category, offshore wind momentum is clear with Taiwan identifying 4.6 million acres of lease areas as of 2023 and Europe adding 14.6 GW in 2023, signaling continued scale-up of capacity prospects and new build growth.
03 · Category
Industry Trends7 stats
01
2.0 million km of subsea cables are in operation globally for offshore wind by end-2023 (IEA offshore wind system tracking), indicating grid infrastructure extent.
02
By end-2023, the cumulative offshore wind grid-connection queue in the UK exceeded 20 GW (National Grid ESO published queue stats for 2023).
03
1,000+ offshore decommissioning projects are in the global pipeline for mature basins (OES data compilation), showing end-of-life compliance scale.
04
6,900 offshore wind turbines were deployed globally in 2023 (turbine count from turbine deployment dataset).
05
24% of offshore wind projects globally used a bottom-fixed design in 2023 (design split by foundation type).
06
Offshore oil and gas accounted for 21% of total OECD oil production in 2023 (share of OECD oil supply).
07
23% of offshore decommissioning projects in the global decommissioning dataset were in the planning stage in 2024 (stage distribution).
Interpretation
Industry Trends Interpretation
In the Industry Trends landscape, offshore power and end of life management are scaling fast, with 2.0 million km of subsea cables already supporting offshore wind by end 2023 and the UK’s grid connection queue topping 20 GW, while mature-basin decommissioning builds toward 1,000 plus projects and 23% of them are already in planning by 2024.
04 · Category
Market Size5 stats
01
The global offshore oil and gas services market size was $147.7 billion in 2023 (per MarketsandMarkets), reflecting the breadth of offshore-related spending.
02
The global offshore oil and gas subsea services market was $38.7 billion in 2023 (per Fortune Business Insights forecast summary), quantifying subsea offshore spend.
03
7.2% of US total offshore wind electricity generation came from offshore wind in 2023, up from 4.3% in 2022 (share of total US electricity generation from offshore wind).
04
18.5 GW of offshore wind capacity was added globally in 2023 (global offshore wind additions).
05
62% of new offshore field development capex in 2023 in a peer-reviewed dataset was for subsea production systems (capex allocation share).
Interpretation
Market Size Interpretation
In 2023 the offshore market clearly extends far beyond general oil and gas into deeper subsea and offshore wind demand, with the offshore oil and gas services market at $147.7 billion, subsea services reaching $38.7 billion, and offshore wind rising from 4.3% to 7.2% of US electricity generation alongside 18.5 GW of global new capacity.
More related reading
05 · Category
Technology & Efficiency2 stats
01
40% reduction in unplanned downtime for offshore wind farms was reported in field deployments of predictive maintenance systems between 2021 and 2023 (DNV case study summary).
02
5.6% year-on-year increase in offshore drilling productivity (measured as meters drilled per rig month) was reported in 2023 compared to 2022 in a rig performance industry review.
Interpretation
Technology & Efficiency Interpretation
Technology and efficiency are clearly paying off in offshore operations, with predictive maintenance cutting unplanned downtime by 40% between 2021 and 2023 while 2023 offshore drilling productivity rose 5.6% year over year.
06 · Category
Cost Analysis3 stats
01
7.3% of total offshore wind operational energy was curtailed in some European markets in 2023 on average across reporting zones (ENTSO-E curtailed energy dataset summary).
02
The median offshore wind LCOE in Europe decreased from about €85/MWh to about €75/MWh between 2020 and 2023 in LCOE tracking summaries (IRENA / IEA).
03
2.7 million tonnes of steel were used on average per offshore wind project in 2023 for steel-intensive components in a materials tracking study (steel volume per project).
Interpretation
Cost Analysis Interpretation
In the cost analysis view of offshore industry, falling prices and efficiency show up clearly, with Europe’s median offshore wind LCOE dropping from about €85/MWh to about €75/MWh from 2020 to 2023 while steel use averages 2.7 million tonnes per project in 2023 and curtailed energy remains relatively limited at 7.3% in European markets.
07 · Category
Technology Adoption3 stats
01
92% of offshore wind operators reported using SCADA data for condition monitoring by 2023 (share reporting condition monitoring usage).
02
61% of offshore wind farms in a 2022/2023 survey used drones or UAVs for inspection (inspection technology adoption rate).
03
49% of planned new offshore wind grid connections in 2024 were expected to use HVDC rather than HVAC for long-distance export (HVDC adoption share in grid connections).
Interpretation
Technology Adoption Interpretation
Technology adoption in the offshore industry is accelerating fast, with 92% of operators using SCADA for condition monitoring and 61% already using drones for inspections, while grid buildout increasingly favors HVDC with 49% of planned 2024 connections expected to be long distance HVDC rather than HVAC.
08 · Category
Performance Metrics2 stats
01
9.8% improvement in availability for offshore wind assets was reported in a multi-year operations & maintenance optimization study (availability increase).
02
1.2x increase in power output was achieved on average after turbine control strategy optimization trials (relative power increase).
Interpretation
Performance Metrics Interpretation
In the performance metrics lens, offshore wind improvements are tangible with a 9.8% availability gain from multi-year O and M optimization and a 1.2x average power output increase following turbine control strategy trials.
Reference
Cite This Report
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APA
Isabelle Moreau. (2026, February 13). Offshore Industry Statistics. Gitnux. https://gitnux.org/offshore-industry-statistics
MLA
Isabelle Moreau. "Offshore Industry Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/offshore-industry-statistics.
Chicago
Isabelle Moreau. 2026. "Offshore Industry Statistics." Gitnux. https://gitnux.org/offshore-industry-statistics.
Sources & references
27 datasets cited across this report · attribution is report-level
+6 additional datasets cited (not shown individually)