NORTH AMERN ENERGY PARTNERS

CUSIP: 656844107 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q1 2018
Shares 39,048 Value ($000) $207 Avg Close — Range —
Q4 2017
Shares 39,048 Value ($000) $193 Avg Close — Range —
Q3 2017
Shares 39,048 Value ($000) $170 Avg Close — Range —
Q2 2017
Shares 39,048 Value ($000) $172 Avg Close — Range —
Q1 2017
Shares 39,048 Value ($000) $193 Avg Close — Range —
Q4 2016
Shares 27,331 Value ($000) $105 Avg Close — Range —
Q3 2016
Shares 27,331 Value ($000) $68 Avg Close — Range —
Q2 2016
Shares 27,331 Value ($000) $77 Avg Close — Range —
Q1 2016
Shares 27,331 Value ($000) $56 Avg Close — Range —
Q4 2015
Shares 27,331 Value ($000) $47 Avg Close — Range —
Q3 2015
Shares 27,331 Value ($000) $60 Avg Close — Range —
Q2 2015
Shares 27,331 Value ($000) $66 Avg Close — Range —
Q1 2015
Shares 27,331 Value ($000) $80 Avg Close — Range —
Q4 2014
Shares 27,331 Value ($000) $86 Avg Close — Range —
Q3 2014
Shares 27,331 Value ($000) $176 Avg Close — Range —
Q2 2014
Shares 27,331 Value ($000) $220 Avg Close — Range —
Q1 2014
Shares 27,331 Value ($000) $197 Avg Close — Range —
Q4 2013
Shares 14,875 Value ($000) $86 Avg Close — Range —