NUVERRA ENVIRONMENTAL SOLUTI

CUSIP: 67091K203 Class: COM

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

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

Q1 2015
Shares 27,842 Value ($000) $99 Avg Close — Range —
Q4 2014
Shares 27,842 Value ($000) $155 Avg Close — Range —
Q3 2014
Shares 27,723 Value ($000) $409 Avg Close — Range —
Q2 2014
Shares 27,565 Value ($000) $554 Avg Close — Range —
Q1 2014
Shares 25,865 Value ($000) $525 Avg Close — Range —
Q4 2013
Shares 25,865 Value ($000) $434 Avg Close — Range —