UNITED STATES NATL GAS FUND

CUSIP: 912318201 Class: UNIT PAR $0.001

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2017
Shares 44,868 Value ($000) $1,046 Avg Close — Range —
Q3 2017
Shares 396,118 Value ($000) $2,602 Avg Close — Range —
Q2 2017
Shares 81,392 Value ($000) $552 Avg Close — Range —
Q1 2017
Shares 1 Value ($000) $0 Avg Close — Range —
Q4 2016
Shares 18,225 Value ($000) $170 Avg Close — Range —
Q3 2016
Shares 1 Value ($000) $0 Avg Close — Range —
Q2 2016
Shares 1 Value ($000) $0 Avg Close — Range —
Q1 2016
Shares 29,171 Value ($000) $194 Avg Close — Range —
Q4 2015
Shares 258,406 Value ($000) $2,240 Avg Close — Range —
Q3 2015
Shares 65,600 Value ($000) $762 Avg Close — Range —
Q2 2015
Shares 338,300 Value ($000) $4,587 Avg Close — Range —
Q1 2015
Shares 243,692 Value ($000) $3,226 Avg Close — Range —
Q4 2014
Shares 1 Value ($000) $0 Avg Close — Range —
Q2 2014
Shares 2,174 Value ($000) $53 Avg Close — Range —
Q1 2014
Shares 1,947 Value ($000) $48 Avg Close — Range —
Q4 2013
Shares 25,344 Value ($000) $524 Avg Close — Range —
Q3 2013
Shares 5,342 Value ($000) $98 Avg Close — Range —
Q2 2013
Shares 5,493 Value ($000) $104 Avg Close — Range —