MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

BARCLAYS PLC's Holding History (CIK: 0000312069)

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

Q3 2015
Shares 1,152,814 Value ($000) $48,417 Avg Close — Range —
Q2 2015
Shares 158,484 Value ($000) $8,877 Avg Close — Range —
Q1 2015
Shares 81,039 Value ($000) $5,349 Avg Close — Range —
Q4 2014
Shares 754,413 Value ($000) $50,544 Avg Close — Range —
Q3 2014
Shares 672,508 Value ($000) $51,105 Avg Close — Range —
Q2 2014
Shares 551,339 Value ($000) $39,144 Avg Close — Range —
Q1 2014
Shares 55,150 Value ($000) $3,586 Avg Close — Range —
Q4 2013
Shares 156,857 Value ($000) $10,353 Avg Close — Range —
Q3 2013
Shares 163,364 Value ($000) $11,763 Avg Close — Range —
Q2 2013
Shares 97,619 Value ($000) $6,526 Avg Close — Range —