The Global Energy Ownership Tracker provides information on the chain of ownership for various energy projects. The data maps each level of the chain from the direct owner (as in, the lowest-level identified owner in the chain of ownership) up to their highest-level ultimate parents (e.g., corporations, investment firms, and governments). Ownership links are reported with the percentage of ownership, including owners that have controlling interest as well as those with minority, non-controlling interests (if over a threshold of 5% ownership).
This asset ownership data set covers nine of GEM’s trackers:
- The Global Coal Plant Tracker
- The Global Oil and Gas Plant Tracker
- The Global Coal Mine Tracker
- The Global Iron & Steel Tracker
- The Global Bioenergy Plant Tracker
- The Global Iron Ore Mines Tracker
- Natural Gas Transmission pipelines from the Global Gas Infrastructure Tracker
- Crude oil and natural gas liquid transmission pipelines from the Global Oil Infrastructure Tracker
- Global Cement and Concrete Tracker
Details about how each tracker identifies their assets and what methodologies they follow can be found on each of their respective pages of the GEM website linked above.
The Global Energy Ownership Tracker is updated after each new release of these underlying trackers. The most recent release of this data was in August 2025 and contains ownership data for Coal Plants, Oil and Gas Plants, Bioenergy Plants, Iron and Steel Plants, Coal Mines, Iron Ore Mines, Cement and Concrete Plants, and Natural Gas Pipelines.
To learn about the various components of each GEM tracker, read About GEM’s Trackers. To receive notifications from this project, please sign up for our mailing list. If you have questions about this project, please contact the Project Manager, Anna Mowat.