WESTERN GAS PARTNERS LP

CUSIP: 958254104 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2018
Shares 94,711 Value ($000) $4,000 Avg Close — Range —
Q3 2018
Shares 60,291 Value ($000) $2,634 Avg Close — Range —
Q2 2018
Shares 90,361 Value ($000) $4,373 Avg Close — Range —
Q1 2018
Shares 90,361 Value ($000) $3,856 Avg Close — Range —
Q4 2017
Shares 46,061 Value ($000) $2,215 Avg Close — Range —
Q3 2017
Shares 68,061 Value ($000) $3,490 Avg Close — Range —
Q2 2017
Shares 50,161 Value ($000) $2,806 Avg Close — Range —
Q1 2017
Shares 96,381 Value ($000) $5,826 Avg Close — Range —
Q4 2016
Shares 100,785 Value ($000) $5,922 Avg Close — Range —
Q3 2016
Shares 100,785 Value ($000) $5,548 Avg Close — Range —
Q2 2016
Shares 125,685 Value ($000) $6,335 Avg Close — Range —
Q1 2016
Shares 125,685 Value ($000) $5,456 Avg Close — Range —
Q4 2015
Shares 93,485 Value ($000) $4,443 Avg Close — Range —
Q3 2015
Shares 82,785 Value ($000) $3,876 Avg Close — Range —
Q2 2015
Shares 63,550 Value ($000) $4,027 Avg Close — Range —
Q1 2015
Shares 58,050 Value ($000) $3,823 Avg Close — Range —
Q4 2014
Shares 59,290 Value ($000) $4,331 Avg Close — Range —
Q3 2014
Shares 65,380 Value ($000) $4,328 Avg Close — Range —
Q2 2014
Shares 65,380 Value ($000) $5,000 Avg Close — Range —
Q1 2014
Shares 65,380 Value ($000) $4,328 Avg Close — Range —
Q4 2013
Shares 65,380 Value ($000) $4,033 Avg Close — Range —
Q3 2013
Shares 65,380 Value ($000) $4,904 Avg Close — Range —
Q2 2013
Shares 41,480 Value ($000) $2,692 Avg Close — Range —