ONE GAS INC

Ticker: OGS CUSIP: 68235P108 Class: COM

Robeco Schweiz AG's Holding History (CIK: 0001418427)

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

Q2 2014

Shares 79,050 Value ($000) $2,985 Avg Close $36.58 Range $34.90 - $38.91

Q1 2014

Shares 85,075 Value ($000) $2,986 Avg Close $34.23 Range $31.94 - $37.01

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	79,050	$2,985	$36.58	$34.90 - $38.91
Q1 2014	85,075	$2,986	$34.23	$31.94 - $37.01