WILLIAMS PARTNERS L P

CUSIP: 96950F104 Class: COM UNIT L P

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

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

Q1 2015
Shares 300,400 Value ($000) $13,034 Avg Close — Range —
Q4 2014
Shares 300,400 Value ($000) $13,034 Avg Close — Range —
Q3 2014
Shares 297,500 Value ($000) $15,782 Avg Close — Range —
Q2 2014
Shares 297,700 Value ($000) $16,162 Avg Close — Range —
Q1 2014
Shares 307,100 Value ($000) $15,665 Avg Close — Range —
Q4 2013
Shares 292,800 Value ($000) $14,549 Avg Close — Range —
Q3 2013
Shares 287,500 Value ($000) $15,203 Avg Close — Range —
Q2 2013
Shares 234,494 Value ($000) $12,100 Avg Close — Range —