MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

HighTower Advisors, LLC's Holding History (CIK: 0001462245)

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

Q3 2015
Shares 138,188 Value ($000) $5,928 Avg Close — Range —
Q2 2015
Shares 133,686 Value ($000) $7,537 Avg Close — Range —
Q1 2015
Shares 137,586 Value ($000) $9,095 Avg Close — Range —
Q4 2014
Shares 136,692 Value ($000) $9,194 Avg Close — Range —
Q3 2014
Shares 128,668 Value ($000) $9,884 Avg Close — Range —
Q2 2014
Shares 126,518 Value ($000) $9,056 Avg Close — Range —
Q1 2014
Shares 141,982 Value ($000) $9,274 Avg Close — Range —
Q4 2013
Shares 164,410 Value ($000) $10,873 Avg Close — Range —
Q3 2013
Shares 187,326 Value ($000) $13,530 Avg Close — Range —
Q2 2013
Shares 180,322 Value ($000) $12,054 Avg Close — Range —