Mailing Address
P O BOX 9150
CAMBRIDGE MA
02142-9150
Business Address
ONE MAIN ST
CAMBRIDGE MA
02142
6172254000
COMMONWEALTH ENERGY SYSTEM (Filer)
CIK: 0000071304 (see all company filings)
EIN.: 041662010 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-07316 | Film No.: 94519455
SIC: 4931 Electric & Other Services Combined