MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

SeaBridge Investment Advisors LLC's Holding History (CIK: 0001304229)

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

Q4 2013
Shares 4,200 Value ($000) $278 Avg Close — Range —
Q3 2013
Shares 4,200 Value ($000) $303 Avg Close — Range —