MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

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

Q3 2014
Shares 248 Value ($000) $19 Avg Close — Range —
Q2 2014
Shares 248 Value ($000) $18 Avg Close — Range —
Q1 2014
Shares 248 Value ($000) $16 Avg Close — Range —