NISKA GAS STORAGE PARTNERS L

CUSIP: 654678101 Class: UNIT LTD

Invesco Ltd.'s Holding History (CIK: 0000914208)

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

Q2 2015
Shares 78,309 Value ($000) $288 Avg Close — Range —
Q1 2015
Shares 102,805 Value ($000) $184 Avg Close — Range —
Q4 2014
Shares 119,106 Value ($000) $352 Avg Close — Range —
Q3 2014
Shares 130,115 Value ($000) $1,624 Avg Close — Range —
Q2 2014
Shares 64,654 Value ($000) $996 Avg Close — Range —