MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

SEARLE & CO.'s Holding History (CIK: 0000710127)

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

Q2 2015
Shares 1,800 Value ($000) $101 Avg Close — Range —
Q1 2015
Shares 1,800 Value ($000) $118 Avg Close — Range —
Q4 2014
Shares 1,800 Value ($000) $120 Avg Close — Range —