ARCHROCK INC

Ticker: AROC CUSIP: 03957W106 Class: Common Stock

CHAI TRUST CO LLC's Holding History (CIK: 0001250731)

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

Q1 2018

Shares 378,465 Value ($000) $3,312 Avg Close $6.09 Range $5.43 - $6.93

Q4 2017

Shares 1,615,000 Value ($000) $16,958 Avg Close $6.83 Range $5.85 - $8.14

Q3 2017

Shares 1,615,000 Value ($000) $20,268 Avg Close $6.77 Range $5.19 - $8.04

Q2 2017

Shares 1,615,000 Value ($000) $18,411 Avg Close $7.06 Range $5.94 - $8.35

Q1 2017

Shares 1,615,000 Value ($000) $20,026 Avg Close $8.56 Range $7.07 - $10.04

Q4 2016

Shares 1,615,000 Value ($000) $21,318 Avg Close $7.80 Range $6.49 - $9.05

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	378,465	$3,312	$6.09	$5.43 - $6.93
Q4 2017	1,615,000	$16,958	$6.83	$5.85 - $8.14
Q3 2017	1,615,000	$20,268	$6.77	$5.19 - $8.04
Q2 2017	1,615,000	$18,411	$7.06	$5.94 - $8.35
Q1 2017	1,615,000	$20,026	$8.56	$7.07 - $10.04
Q4 2016	1,615,000	$21,318	$7.80	$6.49 - $9.05