TRANSATLANTIC PETROLEUM LTD

CUSIP: G89982105 Class: CMN

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

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

Q4 2013
Shares 507,600 Value ($000) $416 Avg Close — Range —
Q3 2013
Shares 507,600 Value ($000) $426 Avg Close — Range —
Q2 2013
Shares 486,000 Value ($000) $335 Avg Close — Range —