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## SWEPCo 

<img src='content_image/1031581.jpg'>

<img src='content_image/1031580.jpg'>

(a) Represents market prices in dollars per MWh. 

(b) Represents market prices in dollars per MMBtu. 

(c) The weighted-average is the product of the forward market price of the underlying commodity and volume weighted by term. 

(d) Represents percentage discount applied to the publically available share price. 

The following table provides the measurement uncertainty of fair value measurements to increases (decreases) in significant unobservable inputs related to Energy Contracts, Natural Gas Contracts, FTRs and Other Investments for the Registrants as of December 31, 2020 and 2019: 

## Uncertainty of Fair Value Measurements 

<img src='content_image/1031579.jpg'>

