MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q2 2015
Shares 1,896 Value ($000) $106 Avg Close — Range —
Q1 2015
Shares 5,625 Value ($000) $371 Avg Close — Range —