PIEDMONT NAT GAS INC

CUSIP: 720186105 Class: COM

American Investment Services, Inc.'s Holding History (CIK: 0001369913)

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

Q3 2015
Shares 26,007 Value ($000) $1,042 Avg Close — Range —
Q2 2015
Shares 26,007 Value ($000) $918 Avg Close — Range —
Q1 2015
Shares 26,007 Value ($000) $960 Avg Close — Range —
Q4 2014
Shares 26,007 Value ($000) $1,025 Avg Close — Range —
Q3 2014
Shares 26,007 Value ($000) $872 Avg Close — Range —
Q2 2014
Shares 26,007 Value ($000) $973 Avg Close — Range —