PIONEER NAT RES CO

CUSIP: 723787107 Class: COM

America First Investment Advisors, LLC's Holding History (CIK: 0001308778)

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

Q4 2014
Shares 45 Value ($000) $7 Avg Close — Range —
Q3 2014
Shares 50 Value ($000) $10 Avg Close — Range —
Q2 2014
Shares 50 Value ($000) $11 Avg Close — Range —
Q1 2014
Shares 50 Value ($000) $9 Avg Close — Range —
Q4 2013
Shares 50 Value ($000) $9 Avg Close — Range —