NORTHERN TIER ENERGY LP

CUSIP: 665826103 Class: COM UN REPR PART

ING GROEP NV's Holding History (CIK: 0001039765)

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

Q1 2016

Shares 904,047 Value ($000) $21,326 Avg Close — Range —

Q4 2015

Shares 309,308 Value ($000) $7,993 Avg Close — Range —

Q3 2015

Shares 255,000 Value ($000) $5,817 Avg Close — Range —

Q2 2015

Shares 742,801 Value ($000) $17,656 Avg Close — Range —

Q1 2015

Shares 822,801 Value ($000) $20,858 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	904,047	$21,326	—	—
Q4 2015	309,308	$7,993	—	—
Q3 2015	255,000	$5,817	—	—
Q2 2015	742,801	$17,656	—	—
Q1 2015	822,801	$20,858	—	—