CLAYTON WILLIAMS ENERGY

CUSIP: 969490AG6 Class: CORP

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q4 2013
Shares 2,000,000 Value ($000) $2,055 Avg Close — Range —
Q3 2013
Shares 4,000,000 Value ($000) $3,980 Avg Close — Range —