WILLIAMS CLAYTON ENERGY INC

CUSIP: 969490101 Class: CMN

Capital World Investors's Holding History (CIK: 0001422849)

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

Q2 2016
Shares 128,498 Value ($000) $3,529 Avg Close — Range —
Q1 2016
Shares 128,498 Value ($000) $1,146 Avg Close — Range —
Q4 2015
Shares 128,498 Value ($000) $3,800 Avg Close — Range —
Q3 2015
Shares 201,000 Value ($000) $7,801 Avg Close — Range —
Q2 2015
Shares 201,000 Value ($000) $13,216 Avg Close — Range —
Q1 2015
Shares 201,000 Value ($000) $10,177 Avg Close — Range —
Q4 2014
Shares 19,952 Value ($000) $1,273 Avg Close — Range —