DAWSON GEOPHYSICAL CO NEW

Ticker: DWSN CUSIP: 239360100 Class: COM

STRS OHIO's Holding History (CIK: 0000820478)

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

Q1 2017

Shares 76,700 Value ($000) $426 Avg Close $5.89 Range $4.30 - $6.95

Q4 2016

Shares 76,700 Value ($000) $616 Avg Close $6.15 Range $5.10 - $7.32

Q3 2016

Shares 82,600 Value ($000) $630 Avg Close $6.08 Range $5.11 - $7.21

Q2 2016

Shares 75,300 Value ($000) $613 Avg Close $4.96 Range $3.25 - $6.85

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	76,700	$426	$5.89	$4.30 - $6.95
Q4 2016	76,700	$616	$6.15	$5.10 - $7.32
Q3 2016	82,600	$630	$6.08	$5.11 - $7.21
Q2 2016	75,300	$613	$4.96	$3.25 - $6.85