INDEPENDENCE CONTRACT DRIL I

CUSIP: 453415309 Class: COM

DUMAC, INC.'s Holding History (CIK: 0001584258)

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

Q4 2018
Shares 298,300 Value ($000) $931 Avg Close — Range —
Q3 2018
Shares 298,300 Value ($000) $1,474 Avg Close — Range —
Q2 2018
Shares 298,300 Value ($000) $1,229 Avg Close — Range —
Q1 2018
Shares 392,500 Value ($000) $1,484 Avg Close — Range —
Q4 2017
Shares 392,500 Value ($000) $1,562 Avg Close — Range —