NORTHERN TIER ENERGY LP

CUSIP: 665826103 Class: COM UN REPR PART

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2016
Shares 14,124 Value ($000) $333 Avg Close — Range —
Q3 2015
Shares 3,064 Value ($000) $70 Avg Close — Range —
Q1 2014
Shares 1,821 Value ($000) $47 Avg Close — Range —
Q4 2013
Shares 33,113 Value ($000) $815 Avg Close — Range —
Q3 2013
Shares 65,819 Value ($000) $1,298 Avg Close — Range —
Q2 2013
Shares 35,153 Value ($000) $844 Avg Close — Range —