Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000902219-13-000377
Filing Date
2013-02-14
Accepted
2013-02-14 12:50:45
Documents
1

Document Format Files

Seq Description Document Type Size
1 DISCLOSURE DOCUMENT sec_filing.htm SC 13G 18113
  Complete submission text file 0000902219-13-000377.txt   19807
Mailing Address P O DRAWER 1416 SNYDER TX 79550
Business Address 4510 LAMESA HWY P O DRAWER 1416 SNYDER TX 79549 9155731104
PATTERSON UTI ENERGY INC (Subject) CIK: 0000889900 (see all company filings)

EIN.: 752504748 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-44095 | Film No.: 13609701
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address 280 CONGRESS STREET BOSTON MA 02210
Business Address 280 CONGRESS STREET BOSTON MA 02210 6179515000
WELLINGTON MANAGEMENT CO LLP (Filed by) CIK: 0000902219 (see all company filings)

EIN.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000