PIONEER NAT RES CO

CUSIP: 723787107 Class: COM

REGENTS OF THE UNIVERSITY OF CALIFORNIA's Holding History (CIK: 0000315054)

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

Q1 2015
Shares 9,500 Value ($000) $1,553 Avg Close — Range —
Q4 2014
Shares 8,200 Value ($000) $1,221 Avg Close — Range —
Q3 2013
Shares 4,500 Value ($000) $850 Avg Close — Range —