NSTAR

CUSIP: 67019E107 Class: COM

SECURIAN ASSET MANAGEMENT, INC's Holding History (CIK: 0001035350)

Note: Option positions (PUT/CALL) are excluded.

Q1 2012
Shares 15,649 Value ($000) $761 Avg Close — Range —
Q4 2011
Shares 15,749 Value ($000) $740 Avg Close — Range —
Q3 2011
Shares 15,469 Value ($000) $693 Avg Close — Range —