DORCHESTER MINERALS LP

Ticker: DMLP CUSIP: 25820R105 Class: COM UNIT

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

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

Q4 2016
Shares 67,821 Value ($000) $1,190 Avg Close — Range —
Q3 2016
Shares 67,821 Value ($000) $1,045 Avg Close — Range —
Q2 2016
Shares 67,821 Value ($000) $978 Avg Close — Range —
Q1 2016
Shares 252,821 Value ($000) $2,880 Avg Close — Range —
Q4 2015
Shares 505,631 Value ($000) $5,001 Avg Close — Range —
Q3 2015
Shares 534,831 Value ($000) $7,734 Avg Close — Range —
Q2 2015
Shares 547,371 Value ($000) $11,708 Avg Close — Range —
Q1 2015
Shares 545,821 Value ($000) $12,412 Avg Close — Range —
Q4 2014
Shares 534,213 Value ($000) $13,638 Avg Close — Range —
Q3 2014
Shares 465,213 Value ($000) $13,756 Avg Close — Range —
Q2 2014
Shares 381,213 Value ($000) $11,642 Avg Close — Range —
Q1 2014
Shares 332,703 Value ($000) $8,717 Avg Close — Range —
Q4 2013
Shares 302,212 Value ($000) $7,851 Avg Close — Range —
Q3 2013
Shares 274,389 Value ($000) $6,558 Avg Close — Range —
Q2 2013
Shares 255,061 Value ($000) $6,246 Avg Close — Range —