MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

Mathes Company, Inc.'s Holding History (CIK: 0001389223)

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

Q3 2015
Shares 8,050 Value ($000) $345 Avg Close — Range —
Q2 2015
Shares 8,050 Value ($000) $454 Avg Close — Range —
Q1 2015
Shares 8,050 Value ($000) $532 Avg Close — Range —
Q4 2014
Shares 9,250 Value ($000) $622 Avg Close — Range —
Q3 2014
Shares 9,250 Value ($000) $711 Avg Close — Range —
Q2 2014
Shares 8,925 Value ($000) $639 Avg Close — Range —
Q1 2014
Shares 8,400 Value ($000) $549 Avg Close — Range —
Q4 2013
Shares 5,865 Value ($000) $388 Avg Close — Range —
Q3 2013
Shares 5,740 Value ($000) $415 Avg Close — Range —
Q2 2013
Shares 6,635 Value ($000) $444 Avg Close — Range —