PLAINS ALL AMERN PIPELINE L

Ticker: PAA CUSIP: 726503105 Class: UNIT LTD PARTN

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2014
Shares 57,600 Value ($000) $2,956 Avg Close — Range —
Q3 2014
Shares 57,600 Value ($000) $3,390 Avg Close — Range —
Q2 2014
Shares 57,600 Value ($000) $3,459 Avg Close — Range —
Q1 2014
Shares 57,600 Value ($000) $3,175 Avg Close — Range —
Q4 2013
Shares 187,600 Value ($000) $9,712 Avg Close — Range —
Q3 2013
Shares 157,600 Value ($000) $8,299 Avg Close — Range —
Q2 2013
Shares 157,600 Value ($000) $8,796 Avg Close — Range —