WILLIAMS PARTNERS L P

CUSIP: 96950F104 Class: COM UNIT L P

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2015
Shares 28,444 Value ($000) $1,400 Avg Close — Range —
Q4 2014
Shares 1,200 Value ($000) $54 Avg Close — Range —