EAGLE ROCK ENERGY PARTNERS L

CUSIP: 26985R104 Class: CMN

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

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

Q3 2015
Shares 121,332 Value ($000) $154 Avg Close — Range —
Q2 2015
Shares 94,987 Value ($000) $238 Avg Close — Range —
Q1 2015
Shares 108,566 Value ($000) $253 Avg Close — Range —
Q4 2014
Shares 68,409 Value ($000) $151 Avg Close — Range —
Q3 2014
Shares 54,374 Value ($000) $194 Avg Close — Range —
Q2 2014
Shares 70,198 Value ($000) $350 Avg Close — Range —
Q1 2014
Shares 62,137 Value ($000) $327 Avg Close — Range —
Q4 2013
Shares 230,685 Value ($000) $1,373 Avg Close — Range —
Q3 2013
Shares 39,741 Value ($000) $282 Avg Close — Range —
Q2 2013
Shares 36,606 Value ($000) $288 Avg Close — Range —