MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q3 2015
Shares 15,250 Value ($000) $654 Avg Close — Range —
Q2 2015
Shares 15,300 Value ($000) $863 Avg Close — Range —
Q1 2015
Shares 15,200 Value ($000) $1,005 Avg Close — Range —
Q4 2014
Shares 15,550 Value ($000) $1,045 Avg Close — Range —
Q3 2014
Shares 15,700 Value ($000) $1,206 Avg Close — Range —
Q2 2014
Shares 15,000 Value ($000) $1,074 Avg Close — Range —
Q1 2014
Shares 14,450 Value ($000) $944 Avg Close — Range —
Q4 2013
Shares 11,500 Value ($000) $760 Avg Close — Range —
Q3 2013
Shares 5,000 Value ($000) $361 Avg Close — Range —
Q2 2013
Shares 5,000 Value ($000) $334 Avg Close — Range —