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Reliability of PSO gap estimate

How we make sure the PSO gap estimate is reliable.

Published 3 November 2025

We seek feedback and advice about how we estimate the gap from our external and internal subject matter experts. The reliability for this estimate is high with a score of 25.

As with all gap estimates, the PSO gap estimate remains sensitive to assumptions. We will continue to monitor and test the overall approach as we improve it in future releases.

Figure 3: Reliability rating scale from very low to very high – PSO gap

 The latest product stewardship for oil gap estimate is rated as high at 25. The rating scale is from very low (1–10), low (11–15), medium (16–20), high (21–25) to very high (26–30). 

 

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