MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

Hemenway Trust Co LLC's Holding History (CIK: 0001494234)

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

Q2 2015
Shares 9,285 Value ($000) $523 Avg Close — Range —
Q1 2015
Shares 9,285 Value ($000) $614 Avg Close — Range —
Q4 2014
Shares 10,291 Value ($000) $691 Avg Close — Range —
Q3 2014
Shares 10,291 Value ($000) $791 Avg Close — Range —
Q2 2014
Shares 10,398 Value ($000) $744 Avg Close — Range —
Q1 2014
Shares 9,885 Value ($000) $646 Avg Close — Range —
Q4 2013
Shares 9,851 Value ($000) $651 Avg Close — Range —
Q3 2013
Shares 9,600 Value ($000) $693 Avg Close — Range —
Q2 2013
Shares 9,285 Value ($000) $621 Avg Close — Range —
Q1 2013
Shares 9,285 Value ($000) $564 Avg Close — Range —