INDEPENDENCE CONTRACT DRIL I

CUSIP: 453415309 Class: COM

FMR LLC's Holding History (CIK: 0000315066)

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

Q4 2019
Shares 1,472,070 Value ($000) $1,467 Avg Close — Range —
Q3 2019
Shares 1,495,570 Value ($000) $1,795 Avg Close — Range —
Q2 2019
Shares 1,484,562 Value ($000) $2,346 Avg Close — Range —
Q1 2019
Shares 689,455 Value ($000) $1,910 Avg Close — Range —
Q4 2018
Shares 599,955 Value ($000) $1,872 Avg Close — Range —
Q3 2018
Shares 752,829 Value ($000) $3,719 Avg Close — Range —
Q2 2018
Shares 902,530 Value ($000) $3,718 Avg Close — Range —
Q1 2018
Shares 1,516,568 Value ($000) $5,733 Avg Close — Range —
Q4 2017
Shares 1,712,283 Value ($000) $6,815 Avg Close — Range —
Q3 2017
Shares 1,800,676 Value ($000) $6,843 Avg Close — Range —
Q2 2017
Shares 1,191,439 Value ($000) $4,635 Avg Close — Range —
Q1 2017
Shares 166,014 Value ($000) $915 Avg Close — Range —
Q4 2016
Shares 99,158 Value ($000) $664 Avg Close — Range —
Q3 2016
Shares 1,927,788 Value ($000) $10,121 Avg Close — Range —
Q2 2016
Shares 4,377,091 Value ($000) $23,768 Avg Close — Range —
Q1 2016
Shares 3,660,435 Value ($000) $17,460 Avg Close — Range —
Q4 2015
Shares 3,468,613 Value ($000) $17,516 Avg Close — Range —
Q3 2015
Shares 3,542,422 Value ($000) $17,641 Avg Close — Range —
Q2 2015
Shares 3,641,523 Value ($000) $32,300 Avg Close — Range —
Q1 2015
Shares 3,694,423 Value ($000) $25,750 Avg Close — Range —
Q4 2014
Shares 3,694,423 Value ($000) $19,285 Avg Close — Range —
Q3 2014
Shares 3,428,273 Value ($000) $40,282 Avg Close — Range —