NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM's Holding History (CIK: 0000938076)

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

Q3 2018
Shares 14,081 Value ($000) $942 Avg Close — Range —
Q2 2018
Shares 14,081 Value ($000) $898 Avg Close — Range —
Q1 2018
Shares 14,151 Value ($000) $816 Avg Close — Range —
Q4 2017
Shares 17,710 Value ($000) $1,056 Avg Close — Range —
Q3 2017
Shares 17,950 Value ($000) $1,156 Avg Close — Range —
Q2 2017
Shares 17,950 Value ($000) $1,074 Avg Close — Range —
Q1 2017
Shares 17,950 Value ($000) $1,061 Avg Close — Range —
Q4 2016
Shares 18,020 Value ($000) $1,078 Avg Close — Range —
Q3 2016
Shares 18,020 Value ($000) $1,083 Avg Close — Range —
Q2 2016
Shares 20,469 Value ($000) $1,327 Avg Close — Range —
Q1 2016
Shares 19,224 Value ($000) $1,035 Avg Close — Range —
Q4 2015
Shares 20,899 Value ($000) $1,058 Avg Close — Range —
Q3 2015
Shares 22,127 Value ($000) $1,014 Avg Close — Range —
Q2 2015
Shares 22,127 Value ($000) $933 Avg Close — Range —
Q1 2015
Shares 22,127 Value ($000) $1,061 Avg Close — Range —
Q4 2014
Shares 22,007 Value ($000) $1,098 Avg Close — Range —
Q3 2014
Shares 27,927 Value ($000) $1,180 Avg Close — Range —
Q2 2014
Shares 28,028 Value ($000) $1,322 Avg Close — Range —
Q1 2014
Shares 25,003 Value ($000) $1,100 Avg Close — Range —
Q4 2013
Shares 25,003 Value ($000) $1,071 Avg Close — Range —
Q3 2013
Shares 24,369 Value ($000) $1,023 Avg Close — Range —
Q2 2013
Shares 36,829 Value ($000) $1,564 Avg Close — Range —