You will need to add CHK's and SSE-WI's prices to calculate the equivalent price of CHK
I did the math of my own shares using the 1:14 ratio for SSE and the current price of CHK. When I did that using the closing price of CHK today and the closing price of SSE-WI (sse when issued), I got a closing price of the CHK + SSE-WI equal to 32.10 today. You guys can do the same thing, and I believe you can check my math. For completeness I used closing prices of SSE-WI of 25.75 and CHK of 30.27.