PATTERSON UTI ENERGY INC

Ticker: PTEN CUSIP: 703481101 Class: Common Stock

CLOUGH CAPITAL PARTNERS L P's Holding History (CIK: 0001276144)

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

Q2 2016

Shares 295,100 Value ($000) $6,292 Avg Close $18.84 Range $16.06 - $22.12

Q3 2014

Shares 455,700 Value ($000) $14,824 Avg Close $33.96 Range $31.12 - $38.43

Q2 2014

Shares 597,000 Value ($000) $20,859 Avg Close $32.83 Range $30.24 - $35.42

Q1 2014

Shares 606,400 Value ($000) $19,211 Avg Close $27.81 Range $24.37 - $31.95

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	295,100	$6,292	$18.84	$16.06 - $22.12
Q3 2014	455,700	$14,824	$33.96	$31.12 - $38.43
Q2 2014	597,000	$20,859	$32.83	$30.24 - $35.42
Q1 2014	606,400	$19,211	$27.81	$24.37 - $31.95