QUICKSILVER RESOURCES INC

CUSIP: 74837R104 Class: COM

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

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

Q1 2015
Shares 20,000 Value ($000) $0 Avg Close — Range —
Q4 2014
Shares 20,000 Value ($000) $4 Avg Close — Range —
Q3 2014
Shares 20,000 Value ($000) $12 Avg Close — Range —
Q2 2014
Shares 20,000 Value ($000) $53 Avg Close — Range —
Q1 2014
Shares 20,500 Value ($000) $54 Avg Close — Range —
Q4 2013
Shares 20,000 Value ($000) $61 Avg Close — Range —