MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

JOHNSON INVESTMENT COUNSEL INC's Holding History (CIK: 0000821197)

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

Q3 2015
Shares 22,619 Value ($000) $970 Avg Close — Range —
Q2 2015
Shares 22,619 Value ($000) $1,275 Avg Close — Range —
Q1 2015
Shares 22,500 Value ($000) $1,487 Avg Close — Range —
Q4 2014
Shares 22,500 Value ($000) $1,511 Avg Close — Range —
Q3 2014
Shares 22,500 Value ($000) $1,728 Avg Close — Range —
Q2 2014
Shares 22,500 Value ($000) $1,610 Avg Close — Range —
Q1 2014
Shares 22,250 Value ($000) $1,453 Avg Close — Range —
Q4 2013
Shares 22,250 Value ($000) $1,471 Avg Close — Range —
Q3 2013
Shares 21,100 Value ($000) $1,524 Avg Close — Range —
Q2 2013
Shares 21,206 Value ($000) $1,417 Avg Close — Range —