NUVERRA ENVIRONMENTAL SOLUTI

CUSIP: 67091K104 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q3 2013
Shares 256,651 Value ($000) $588 Avg Close — Range —
Q2 2013
Shares 248,558 Value ($000) $721 Avg Close — Range —