MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q3 2015
Shares 1,577,641 Value ($000) $67,696 Avg Close — Range —
Q2 2015
Shares 226,396 Value ($000) $12,764 Avg Close — Range —
Q1 2015
Shares 465,290 Value ($000) $30,756 Avg Close — Range —
Q4 2014
Shares 68,156 Value ($000) $4,579 Avg Close — Range —
Q3 2014
Shares 65,023 Value ($000) $4,995 Avg Close — Range —
Q2 2014
Shares 89,954 Value ($000) $6,439 Avg Close — Range —
Q1 2014
Shares 68,688 Value ($000) $4,487 Avg Close — Range —
Q4 2013
Shares 2,154 Value ($000) $142 Avg Close — Range —
Q3 2013
Shares 1,683 Value ($000) $121 Avg Close — Range —
Q2 2013
Shares 1,683 Value ($000) $113 Avg Close — Range —