# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001084991-19-000013
Filing Date
2019-03-18
Accepted
2019-03-18 17:27:18
Documents
80
Period of Report
2018-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | ngs-20181231.htm iXBRL | 10-K | 2175944
2 |  | a123118-ngsxex211subsi.htm | EX-21.1 | 3804
3 |  | a123118-ex231bdoconsent.htm | EX-23.1 | 5176
4 |  | a123118-ngsxex311steph.htm | EX-31.1 | 16919
5 |  | a123118-ngsxex312larry.htm | EX-31.2 | 17840
6 |  | a123118-ngsxex321larry.htm | EX-32.1 | 12977
7 |  | a123118-ngsxex322steve.htm | EX-32.2 | 12967
13 |  | ngs-20181231_g1.jpg | GRAPHIC | 13953
14 |  | ngs-20181231_g2.jpg | GRAPHIC | 47565
| Complete submission text file | 0001084991-19-000013.txt |  | 9254741

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
8 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | ngs-20181231.xsd | EX-101.SCH | 54331
9 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | ngs-20181231_cal.xml | EX-101.CAL | 96429
10 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | ngs-20181231_def.xml | EX-101.DEF | 281133
11 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | ngs-20181231_lab.xml | EX-101.LAB | 767662
12 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | ngs-20181231_pre.xml | EX-101.PRE | 479205
15 | EXTRACTED XBRL INSTANCE DOCUMENT | ngs-20181231_htm.xml | XML | 1610284

Mailing Address 508 WEST WALL STREET SUITE 550 MIDLAND TX 79701
Business Address 508 WEST WALL STREET SUITE 550 MIDLAND TX 79701 432-262-2700
NATURAL GAS SERVICES GROUP INC (Filer) CIK: 0001084991 (see all company filings)

EIN.: 752811855 | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-31398 | Film No.: 19689306
SIC: 1389 Oil & Gas Field Services, NEC