INDEPENDENCE CONTRACT DRIL I

CUSIP: 453415309 Class: COM

Nationwide Fund Advisors's Holding History (CIK: 0001097218)

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

Q3 2017
Shares 25,401 Value ($000) $97 Avg Close — Range —
Q2 2017
Shares 67,605 Value ($000) $263 Avg Close — Range —
Q1 2017
Shares 69,005 Value ($000) $380 Avg Close — Range —
Q4 2016
Shares 76,198 Value ($000) $511 Avg Close — Range —
Q3 2016
Shares 75,898 Value ($000) $398 Avg Close — Range —
Q2 2016
Shares 77,498 Value ($000) $421 Avg Close — Range —
Q1 2016
Shares 50,981 Value ($000) $243 Avg Close — Range —
Q4 2015
Shares 50,981 Value ($000) $257 Avg Close — Range —
Q3 2015
Shares 79,151 Value ($000) $394 Avg Close — Range —
Q2 2015
Shares 79,151 Value ($000) $702 Avg Close — Range —
Q1 2015
Shares 7,528 Value ($000) $52 Avg Close — Range —
Q4 2014
Shares 7,528 Value ($000) $39 Avg Close — Range —
Q3 2014
Shares 2,876 Value ($000) $34 Avg Close — Range —