DAWSON GEOPHYSICAL CO NEW

Ticker: DWSN CUSIP: 239360100 Class: COM

DAVIS R M INC's Holding History (CIK: 0000891287)

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

Q4 2017

Shares 22,500 Value ($000) $112 Avg Close $3.98 Range $3.49 - $4.60

Q3 2017

Shares 22,500 Value ($000) $102 Avg Close $3.32 Range $3.01 - $3.82

Q2 2017

Shares 22,500 Value ($000) $88 Avg Close $3.74 Range $3.07 - $4.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	22,500	$112	$3.98	$3.49 - $4.60
Q3 2017	22,500	$102	$3.32	$3.01 - $3.82
Q2 2017	22,500	$88	$3.74	$3.07 - $4.56