ONE GAS INC

Ticker: OGS CUSIP: 68235P108 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2021

Shares 250,000 Value ($000) $19,398 Avg Close $69.61 Range $63.23 - $78.01

Q3 2021

Shares 70,000 Value ($000) $4,436 Avg Close $71.29 Range $62.52 - $75.93

Q4 2015

Shares 400,000 Value ($000) $20,068 Avg Close $48.28 Range $44.68 - $51.79

Q3 2015

Shares 400,000 Value ($000) $18,132 Avg Close $43.80 Range $41.23 - $45.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	250,000	$19,398	$69.61	$63.23 - $78.01
Q3 2021	70,000	$4,436	$71.29	$62.52 - $75.93
Q4 2015	400,000	$20,068	$48.28	$44.68 - $51.79
Q3 2015	400,000	$18,132	$43.80	$41.23 - $45.58