WILLIAMS CLAYTON ENERGY INC

CUSIP: 969490101 Class: CMN

HBK INVESTMENTS L P's Holding History (CIK: 0001011443)

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

Q1 2016
Shares 15,700 Value ($000) $140 Avg Close — Range —
Q4 2015
Shares 15,900 Value ($000) $470 Avg Close — Range —
Q3 2015
Shares 8,153 Value ($000) $316 Avg Close — Range —
Q1 2015
Shares 19,296 Value ($000) $977 Avg Close — Range —