MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

ZACKS INVESTMENT MANAGEMENT's Holding History (CIK: 0001086483)

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

Q2 2014
Shares 6,219 Value ($000) $445 Avg Close — Range —
Q1 2014
Shares 7,015 Value ($000) $458 Avg Close — Range —
Q4 2013
Shares 7,192 Value ($000) $476 Avg Close — Range —
Q3 2013
Shares 7,476 Value ($000) $540 Avg Close — Range —
Q2 2013
Shares 6,188 Value ($000) $414 Avg Close — Range —