WESTERN GAS PARTNERS LP

CUSIP: 958254104 Class: COM

BOKF, NA's Holding History (CIK: 0000009634)

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

Q3 2015
Shares 4,554 Value ($000) $213 Avg Close — Range —
Q2 2015
Shares 3,654 Value ($000) $232 Avg Close — Range —
Q1 2015
Shares 4,481 Value ($000) $295 Avg Close — Range —
Q4 2014
Shares 3,806 Value ($000) $278 Avg Close — Range —
Q3 2014
Shares 3,806 Value ($000) $285 Avg Close — Range —
Q2 2014
Shares 3,806 Value ($000) $291 Avg Close — Range —
Q1 2014
Shares 3,806 Value ($000) $252 Avg Close — Range —
Q4 2013
Shares 3,806 Value ($000) $235 Avg Close — Range —
Q2 2013
Shares 3,698 Value ($000) $240 Avg Close — Range —