Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-08-000903
Filing Date
2008-02-14
Accepted
2008-02-14 12:09:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 SEC FILING sec_filing.htm SC 13G/A 17708
  Complete submission text file 0000902219-08-000903.txt   19663
Mailing Address 75 STATE STREET BOSTON MA 02109
Business Address 75 STATE STREET BOSTON MA 02109 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/A
SIC: 0000

Mailing Address 2911 SCR 1260 MIDLAND TX 79706
Business Address 2911 SCR 1260 MIDLAND TX 79706 9155633974
NATURAL GAS SERVICES GROUP INC (Subject) CIK: 0001084991 (see all company filings)

EIN.: 752811855 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-78868 | Film No.: 08610909
SIC: 1389 Oil & Gas Field Services, NEC