PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q2 2017

Shares 111,678 Value ($000) $1,559,000 Avg Close $13.44 Range $11.68 - $15.30

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	111,678	$1,559,000	$13.44	$11.68 - $15.30