MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

Chevy Chase Trust Holdings, LLC's Holding History (CIK: 0001462020)

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

Q3 2015
Shares 10,000 Value ($000) $429 Avg Close — Range —
Q2 2015
Shares 10,576 Value ($000) $596 Avg Close — Range —
Q1 2015
Shares 10,576 Value ($000) $699 Avg Close — Range —
Q4 2014
Shares 10,576 Value ($000) $711 Avg Close — Range —
Q3 2014
Shares 10,000 Value ($000) $768 Avg Close — Range —
Q2 2014
Shares 10,000 Value ($000) $716 Avg Close — Range —
Q1 2014
Shares 10,000 Value ($000) $653 Avg Close — Range —
Q4 2013
Shares 10,000 Value ($000) $661 Avg Close — Range —
Q3 2013
Shares 10,000 Value ($000) $722 Avg Close — Range —
Q2 2013
Shares 10,000 Value ($000) $669 Avg Close — Range —