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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-12-000462
Filing Date
2012-02-14
Accepted
2012-02-14 12:08:01
Documents
1

Document Format Files

Seq Description Document Type Size
1 DISCLOSURE DOCUMENT sec_filing.htm SC 13G/A 18056
  Complete submission text file 0000902219-12-000462.txt   19674
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)

IRS No.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 363 N SAM HOUSTON PARKWAY 3 SUITE 1200 HOUSTON TX 77060
Business Address 363 N SAM HOUSTON PARKWAY E SUITE 1200 HOUSTON TX 77060 2818760120
ULTRA PETROLEUM CORP (Subject) CIK: 0001022646 (see all company filings)

IRS No.: 000000000 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-80205 | Film No.: 12605321
SIC: 1311 Crude Petroleum & Natural Gas