DAWSON GEOPHYSICAL CO

CUSIP: 239359102 Class: CMN

HUNTINGTON NATIONAL BANK's Holding History (CIK: 0000049205)

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

Q2 2013
Shares 753 Value ($000) $28 Avg Close — Range —
Q1 2013
Shares 695 Value ($000) $21 Avg Close — Range —
Q4 2012
Shares 281 Value ($000) $7 Avg Close — Range —
Q3 2012
Shares 281 Value ($000) $7 Avg Close — Range —
Q2 2012
Shares 690 Value ($000) $16 Avg Close — Range —
Q1 2012
Shares 690 Value ($000) $24 Avg Close — Range —
Q4 2011
Shares 690 Value ($000) $27 Avg Close — Range —
Q3 2011
Shares 690 Value ($000) $16 Avg Close — Range —
Q2 2011
Shares 647 Value ($000) $22 Avg Close — Range —
Q1 2011
Shares 1,503 Value ($000) $66 Avg Close — Range —