MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

FARMERS & MERCHANTS INVESTMENTS INC's Holding History (CIK: 0001259969)

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

Q3 2013
Shares 715 Value ($000) $52 Avg Close — Range —
Q2 2013
Shares 715 Value ($000) $48 Avg Close — Range —