WESTERN GAS EQUITY PARTNERS

CUSIP: 95825R103 Class: CMN

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2017
Shares 6,590 Value ($000) $245 Avg Close — Range —
Q3 2017
Shares 7,420 Value ($000) $306 Avg Close — Range —
Q2 2017
Shares 7,770 Value ($000) $334 Avg Close — Range —
Q1 2017
Shares 5,915 Value ($000) $271 Avg Close — Range —
Q4 2016
Shares 5,915 Value ($000) $251 Avg Close — Range —
Q3 2016
Shares 5,140 Value ($000) $218 Avg Close — Range —