WILLIAMS CLAYTON ENERGY INC

CUSIP: 969490101 Class: CMN

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2017
Shares 9,600 Value ($000) $1,268 Avg Close — Range —
Q4 2016
Shares 7,900 Value ($000) $942 Avg Close — Range —
Q3 2016
Shares 14,900 Value ($000) $1,273 Avg Close — Range —
Q2 2016
Shares 9,600 Value ($000) $264 Avg Close — Range —
Q4 2015
Shares 9,870 Value ($000) $292 Avg Close — Range —
Q3 2015
Shares 9,870 Value ($000) $383 Avg Close — Range —
Q2 2015
Shares 10,300 Value ($000) $677 Avg Close — Range —
Q1 2015
Shares 11,000 Value ($000) $557 Avg Close — Range —
Q4 2014
Shares 9,000 Value ($000) $574 Avg Close — Range —
Q3 2014
Shares 8,700 Value ($000) $839 Avg Close — Range —
Q2 2014
Shares 9,000 Value ($000) $1,236 Avg Close — Range —
Q1 2014
Shares 8,387 Value ($000) $948 Avg Close — Range —
Q4 2013
Shares 8,335 Value ($000) $683 Avg Close — Range —
Q3 2013
Shares 8,935 Value ($000) $469 Avg Close — Range —
Q2 2013
Shares 9,500 Value ($000) $413 Avg Close — Range —