REX ENERGY CORPORATION

CUSIP: 761565100 Class: CMN

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q4 2015
Shares 21,424 Value ($000) $22 Avg Close — Range —
Q3 2015
Shares 21,424 Value ($000) $44 Avg Close — Range —
Q2 2015
Shares 21,362 Value ($000) $119 Avg Close — Range —
Q1 2015
Shares 21,362 Value ($000) $79 Avg Close — Range —
Q4 2014
Shares 20,062 Value ($000) $102 Avg Close — Range —