PATTERSON UTI ENERGY INC

Ticker: PTEN CUSIP: 703481101 Class: Common Stock

THORNBURG INVESTMENT MANAGEMENT INC's Holding History (CIK: 0001145020)

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

Q1 2016

Shares 55,487 Value ($000) $978 Avg Close $14.91 Range $10.94 - $18.75

Q4 2015

Shares 77,073 Value ($000) $1,162 Avg Close $15.38 Range $12.82 - $17.45

Q3 2015

Shares 77,073 Value ($000) $1,013 Avg Close $15.85 Range $12.97 - $18.80

Q2 2015

Shares 62,907 Value ($000) $1,184 Avg Close $20.74 Range $18.30 - $23.11

Q1 2015

Shares 41,175 Value ($000) $773 Avg Close $17.15 Range $13.30 - $19.70

Q4 2014

Shares 52,874 Value ($000) $877 Avg Close $21.10 Range $14.01 - $33.28

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	55,487	$978	$14.91	$10.94 - $18.75
Q4 2015	77,073	$1,162	$15.38	$12.82 - $17.45
Q3 2015	77,073	$1,013	$15.85	$12.97 - $18.80
Q2 2015	62,907	$1,184	$20.74	$18.30 - $23.11
Q1 2015	41,175	$773	$17.15	$13.30 - $19.70
Q4 2014	52,874	$877	$21.10	$14.01 - $33.28