NUVERRA ENVIRONMENTAL SOLUTI

CUSIP: 67091K302 Class: COM PAR ADDED

PIN OAK INVESTMENT ADVISORS INC's Holding History (CIK: 0001094584)

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

Q2 2018
Shares 24 Value ($000) $0 Avg Close — Range —
Q1 2018
Shares 386 Value ($000) $9 Avg Close — Range —
Q4 2017
Shares 386 Value ($000) $7 Avg Close — Range —