NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q3 2018
Shares 34,639 Value ($000) $2,317 Avg Close — Range —
Q2 2018
Shares 34,648 Value ($000) $2,211 Avg Close — Range —
Q1 2018
Shares 47,045 Value ($000) $2,712 Avg Close — Range —
Q4 2017
Shares 63,124 Value ($000) $3,765 Avg Close — Range —
Q3 2017
Shares 65,827 Value ($000) $4,239 Avg Close — Range —
Q2 2017
Shares 66,576 Value ($000) $3,985 Avg Close — Range —
Q1 2017
Shares 52,286 Value ($000) $3,090 Avg Close — Range —
Q4 2016
Shares 52,286 Value ($000) $3,127 Avg Close — Range —
Q3 2016
Shares 33,426 Value ($000) $2,009 Avg Close — Range —
Q2 2016
Shares 35,726 Value ($000) $2,316 Avg Close — Range —
Q1 2016
Shares 32,426 Value ($000) $1,746 Avg Close — Range —
Q4 2015
Shares 29,926 Value ($000) $1,515 Avg Close — Range —
Q3 2015
Shares 31,526 Value ($000) $1,445 Avg Close — Range —
Q2 2015
Shares 39,676 Value ($000) $1,674 Avg Close — Range —
Q1 2015
Shares 44,876 Value ($000) $2,152 Avg Close — Range —
Q4 2014
Shares 44,876 Value ($000) $2,239 Avg Close — Range —
Q3 2014
Shares 44,876 Value ($000) $1,896 Avg Close — Range —
Q2 2014
Shares 44,876 Value ($000) $2,116 Avg Close — Range —
Q1 2014
Shares 46,976 Value ($000) $2,067 Avg Close — Range —
Q4 2013
Shares 46,976 Value ($000) $2,012 Avg Close — Range —
Q3 2013
Shares 46,976 Value ($000) $1,972 Avg Close — Range —
Q2 2013
Shares 46,976 Value ($000) $1,996 Avg Close — Range —