WILLIAMS CLAYTON ENERGY INC

CUSIP: 969490101 Class: CMN

STRS OHIO's Holding History (CIK: 0000820478)

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

Q4 2014
Shares 7,600 Value ($000) $485 Avg Close — Range —
Q3 2014
Shares 7,600 Value ($000) $733 Avg Close — Range —
Q2 2014
Shares 3,900 Value ($000) $536 Avg Close — Range —