PATTERSON UTI ENERGY INC

Ticker: PTEN CUSIP: 703481101 Class: Common Stock

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q1 2017

Shares 20,375 Value ($000) $495 Avg Close $26.97 Range $22.83 - $29.76

Q4 2016

Shares 39,765 Value ($000) $1,070 Avg Close $24.70 Range $20.79 - $29.56

Q3 2016

Shares 174,440 Value ($000) $3,902 Avg Close $20.07 Range $17.61 - $22.66

Q2 2016

Shares 254,690 Value ($000) $5,430 Avg Close $18.84 Range $16.06 - $22.12

Q1 2016

Shares 136,815 Value ($000) $2,411 Avg Close $14.91 Range $10.94 - $18.75

Q4 2015

Shares 136,915 Value ($000) $2,065 Avg Close $15.38 Range $12.82 - $17.45

Q3 2015

Shares 136,015 Value ($000) $1,787 Avg Close $15.85 Range $12.97 - $18.80

Q2 2015

Shares 185,394 Value ($000) $3,488 Avg Close $20.74 Range $18.30 - $23.11

Q1 2015

Shares 283,827 Value ($000) $5,329 Avg Close $17.15 Range $13.30 - $19.70

Q4 2014

Shares 108,967 Value ($000) $1,808 Avg Close $21.10 Range $14.01 - $33.28

Q2 2014

Shares 1,559 Value ($000) $54 Avg Close $32.83 Range $30.24 - $35.42

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	20,375	$495	$26.97	$22.83 - $29.76
Q4 2016	39,765	$1,070	$24.70	$20.79 - $29.56
Q3 2016	174,440	$3,902	$20.07	$17.61 - $22.66
Q2 2016	254,690	$5,430	$18.84	$16.06 - $22.12
Q1 2016	136,815	$2,411	$14.91	$10.94 - $18.75
Q4 2015	136,915	$2,065	$15.38	$12.82 - $17.45
Q3 2015	136,015	$1,787	$15.85	$12.97 - $18.80
Q2 2015	185,394	$3,488	$20.74	$18.30 - $23.11
Q1 2015	283,827	$5,329	$17.15	$13.30 - $19.70
Q4 2014	108,967	$1,808	$21.10	$14.01 - $33.28
Q2 2014	1,559	$54	$32.83	$30.24 - $35.42