ONE GAS INC

Ticker: OGS CUSIP: 68235P108 Class: COM

Itau Unibanco Holding S.A.'s Holding History (CIK: 0001132597)

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

Q4 2017

Shares 913 Value ($000) $67 Avg Close $75.81 Range $70.66 - $79.51

Q3 2017

Shares 1,403 Value ($000) $327 Avg Close $73.35 Range $68.45 - $76.06

Q2 2017

Shares 180 Value ($000) $13 Avg Close $69.75 Range $67.27 - $72.97

Q1 2017

Shares 190 Value ($000) $13 Avg Close $64.84 Range $61.42 - $68.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	913	$67	$75.81	$70.66 - $79.51
Q3 2017	1,403	$327	$73.35	$68.45 - $76.06
Q2 2017	180	$13	$69.75	$67.27 - $72.97
Q1 2017	190	$13	$64.84	$61.42 - $68.79