CMP's latest FY22 annual[1; starting p. 130] and 23Q1 quarterly[2] financial statements for the habitual numbers sleuthers.
In case anyone else was wondering what the provenance of this $325MM goodwill line item on CMP's balance sheet is, defer to the parent's (Avangrid) latest 10-K filing[3], buried under footnote 7 on p. 123:
> Goodwill for the Maine reporting unit is $325 million from the purchase of CMP by Energy East Corporation in 2000.
[1] https://s24.q4cdn.com/489945429/files/doc_downloads/2023/04/...
[2] https://s24.q4cdn.com/489945429/files/doc_financial/Suppleme...
[3] https://www.sec.gov/Archives/edgar/data/1634997/000163499723...