GASTAR EXPL INC NEW

CUSIP: 36729W202 Class: COMMON STOCK

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2018
Shares 22,199 Value ($000) $12 Avg Close — Range —
Q1 2018
Shares 28,199 Value ($000) $19 Avg Close — Range —
Q4 2017
Shares 25,699 Value ($000) $27 Avg Close — Range —
Q3 2017
Shares 3,801 Value ($000) $3 Avg Close — Range —
Q1 2017
Shares 32,078 Value ($000) $49 Avg Close — Range —
Q4 2016
Shares 129,149 Value ($000) $200 Avg Close — Range —
Q2 2016
Shares 19,052 Value ($000) $21 Avg Close — Range —
Q1 2016
Shares 71,719 Value ($000) $79 Avg Close — Range —
Q3 2015
Shares 27,437 Value ($000) $32 Avg Close — Range —
Q2 2015
Shares 6,131 Value ($000) $19 Avg Close — Range —
Q4 2014
Shares 75,636 Value ($000) $182 Avg Close — Range —
Q3 2014
Shares 114,881 Value ($000) $674 Avg Close — Range —
Q2 2014
Shares 80,910 Value ($000) $705 Avg Close — Range —
Q1 2014
Shares 21,998 Value ($000) $120 Avg Close — Range —