U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT's Holding History (CIK: 0001329375)

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

Q1 2017
Shares 330,262 Value ($000) $15,850 Avg Close — Range —
Q4 2016
Shares 351,063 Value ($000) $19,898 Avg Close — Range —
Q3 2016
Shares 228,989 Value ($000) $10,662 Avg Close — Range —
Q1 2016
Shares 51,653 Value ($000) $1,174 Avg Close — Range —
Q4 2014
Shares 38,700 Value ($000) $994 Avg Close — Range —
Q2 2014
Shares 17,000 Value ($000) $943 Avg Close — Range —
Q1 2014
Shares 31,680 Value ($000) $1,209 Avg Close — Range —
Q4 2013
Shares 12,000 Value ($000) $409 Avg Close — Range —