POSTROCK ENERGY CORP

CUSIP: 737525105 Class: COM

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q3 2014
Shares 19,396 Value ($000) $22 Avg Close — Range —
Q2 2014
Shares 19,396 Value ($000) $29 Avg Close — Range —
Q1 2014
Shares 19,396 Value ($000) $24 Avg Close — Range —
Q4 2013
Shares 19,396 Value ($000) $24 Avg Close — Range —
Q3 2013
Shares 19,396 Value ($000) $25 Avg Close — Range —
Q2 2013
Shares 19,396 Value ($000) $30 Avg Close — Range —