ONEOK PARTNERS LP

CUSIP: 68268N103 Class: UNIT LTD PARTN

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2014
Shares 280,000 Value ($000) $11,096 Avg Close — Range —
Q3 2014
Shares 180,000 Value ($000) $10,073 Avg Close — Range —
Q2 2014
Shares 180,000 Value ($000) $10,548 Avg Close — Range —
Q1 2014
Shares 100,000 Value ($000) $5,355 Avg Close — Range —
Q4 2013
Shares 63,400 Value ($000) $3,338 Avg Close — Range —