INDEPENDENCE CONTRACT DRIL I

CUSIP: 453415309 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2019
Shares 20,600 Value ($000) $21 Avg Close — Range —
Q3 2019
Shares 24,800 Value ($000) $30 Avg Close — Range —
Q2 2019
Shares 29,200 Value ($000) $46 Avg Close — Range —
Q1 2019
Shares 25,400 Value ($000) $70 Avg Close — Range —
Q4 2018
Shares 22,600 Value ($000) $71 Avg Close — Range —
Q3 2018
Shares 21,200 Value ($000) $105 Avg Close — Range —
Q2 2018
Shares 21,200 Value ($000) $87 Avg Close — Range —
Q1 2018
Shares 19,200 Value ($000) $73 Avg Close — Range —
Q4 2017
Shares 19,200 Value ($000) $76 Avg Close — Range —
Q3 2017
Shares 19,700 Value ($000) $75 Avg Close — Range —
Q2 2017
Shares 21,200 Value ($000) $82 Avg Close — Range —