# Natural Gas Services Group Inc: overview

NGS · NYSE · CIK 1084991 · [Energy](/sectors/energy.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/ngs.md) · [Financials](/companies/ngs/financials.md) · [Filings](/companies/ngs/filings.md) · [Insiders](/companies/ngs/insiders.md)

Latest reported revenue: [$51.4m](/filings/0001084991-26-000079.md) for Q2 FY2026, three months to 2026-06-30, from the 10-Q filed Aug 10, 2026 (XBRL us-gaap:Revenues, accession 0001084991-26-000079).

## Last eight quarters

| Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [3.3](/filings/0001084991-24-000118.md) | [147 d](/filings/0001084991-26-000015.md) | [41.4](/filings/0001084991-26-000043.md) | [41.4](/filings/0001084991-26-000079.md) | [43.4](/filings/0001084991-25-000145.md) | [46.1 d](/filings/0001084991-26-000015.md) | [48.5](/filings/0001084991-26-000043.md) | [51.4](/filings/0001084991-26-000079.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [283.5%](/filings/0001084991-25-000145.md) | [4.1% d](/filings/0001084991-26-000015.md) | [23.0%](/filings/0001084991-26-000043.md) | [24.0%](/filings/0001084991-26-000079.md) | [24.8%](/filings/0001084991-25-000145.md) | [15.4% d](/filings/0001084991-26-000015.md) | [27.0%](/filings/0001084991-26-000043.md) | [19.3%](/filings/0001084991-26-000079.md) |
| Net margin | % | [150.3%](/filings/0001084991-25-000145.md) | [2.0% d](/filings/0001084991-26-000015.md) | [11.7%](/filings/0001084991-26-000079.md) | [12.5%](/filings/0001084991-26-000079.md) | [13.3%](/filings/0001084991-25-000145.md) | [8.9% d](/filings/0001084991-26-000015.md) | [14.0%](/filings/0001084991-26-000079.md) | [7.5%](/filings/0001084991-26-000079.md) |
| Diluted EPS | $ per share | [0.40](/filings/0001084991-25-000145.md) | not reported | [0.38](/filings/0001084991-26-000043.md) | [0.41](/filings/0001084991-26-000079.md) | [0.46](/filings/0001084991-25-000145.md) | not reported | [0.53](/filings/0001084991-26-000043.md) | [0.30](/filings/0001084991-26-000079.md) |
| Free cash flow | $m | [(3.2) d](/filings/0001084991-25-000145.md) | [(5.1) d](/filings/0001084991-26-000015.md) | [2.0](/filings/0001084991-26-000043.md) | [(14.8) d](/filings/0001084991-26-000079.md) | [(25.1) d](/filings/0001084991-25-000145.md) | [(20.7) d](/filings/0001084991-26-000015.md) | [7.8](/filings/0001084991-26-000043.md) | [6.6 d](/filings/0001084991-26-000079.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [8.8](/filings/0001084991-23-000032.md) | [10.4](/filings/0001084991-24-000017.md) | [15.0](/filings/0001084991-24-000017.md) | [157](/filings/0001084991-26-000015.md) | [172](/filings/0001084991-26-000015.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [(141.1%)](/filings/0001084991-23-000032.md) | [4.2%](/filings/0001084991-25-000024.md) | [69.7%](/filings/0001084991-26-000015.md) | [21.3%](/filings/0001084991-26-000015.md) | [21.6%](/filings/0001084991-26-000015.md) |
| Net margin | % | [(104.4%)](/filings/0001084991-23-000032.md) | [(5.5%)](/filings/0001084991-25-000024.md) | [31.6%](/filings/0001084991-26-000015.md) | [11.0%](/filings/0001084991-26-000015.md) | [11.6%](/filings/0001084991-26-000015.md) |
| Diluted EPS | $ per share | [(0.70)](/filings/0001084991-23-000032.md) | [(0.05)](/filings/0001084991-25-000024.md) | [0.38](/filings/0001084991-26-000015.md) | [1.37](/filings/0001084991-26-000015.md) | [1.57](/filings/0001084991-26-000015.md) |
| Free cash flow | $m | [2.8](/filings/0001084991-23-000032.md) | [(37.4)](/filings/0001084991-25-000024.md) | [(136)](/filings/0001084991-26-000015.md) | [(5.4)](/filings/0001084991-26-000015.md) | [(58.6)](/filings/0001084991-26-000015.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax; Revenue: us-gaap:Revenues.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/ngs/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $41.5m | 961,577 |  | Added +171,797 |
| [DIMENSIONAL FUND ADVISORS LP](/funds/354204.md) | 2026-06-30 | $36.7m | 850,080 |  | Added +6,283 |
| [AEGIS FINANCIAL CORP](/funds/1140753.md) | 2026-06-30 | $25.2m | 584,872 |  | Reduced −2,140 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $22.1m | 513,031 |  | Added +2,036 |
| [WEBER CAPITAL MANAGEMENT LLC /ADV](/funds/1099905.md) | 2026-06-30 | $20.7m | 479,712 |  | Reduced −2,052 |
| [TWO SIGMA INVESTMENTS, LP](/funds/1179392.md) | 2026-06-30 | $17.7m | 410,330 |  | Added +45,121 |
| [AMERICAN CENTURY COMPANIES INC](/funds/748054.md) | 2026-06-30 | $17.6m | 408,165 |  | Added +69,143 |
| [AMERIPRISE FINANCIAL INC](/funds/820027.md) | 2026-06-30 | $16.4m | 380,171 |  | Added +42,600 |
| [ROYCE & ASSOCIATES LP](/funds/906304.md) | 2026-06-30 | $15.7m | 363,319 |  | Added +10,003 |
| [First Eagle Investment Management, LLC](/funds/1325447.md) | 2026-06-30 | $15.0m | 347,685 |  | Added +60,497 |

## Recent filings

[All 924 filings](/companies/ngs/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-12 | 11:02 ET | [8-K](/filings/0001084991-26-000086.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001084991-26-000086 |
| 2026-08-10 | 16:03 ET | [8-K/A](/filings/0001084991-26-000081.md) | 9.01 Financial statements and exhibits | 0001084991-26-000081 |
| 2026-08-10 | 16:01 ET | [8-K](/filings/0001084991-26-000080.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001084991-26-000080 |
| 2026-08-10 | 16:00 ET | [10-Q](/filings/0001084991-26-000079.md) | Quarterly report, period 2026-06-30 | 0001084991-26-000079 |
| 2026-07-24 | 15:03 ET | [8-K](/filings/0001084991-26-000070.md) | 1.01 Entry into a material agreement; 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001084991-26-000070 |
| 2026-07-10 | 14:01 ET | [8-K](/filings/0001084991-26-000064.md) | 4.01 Change of auditor | 0001084991-26-000064 |
| 2026-07-08 | 16:00 ET | [8-K](/filings/0001084991-26-000061.md) | 7.01 Regulation FD disclosure | 0001084991-26-000061 |
| 2026-06-17 | 17:39 ET | [8-K](/filings/0001084991-26-000058.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001084991-26-000058 |
| 2026-06-15 | 08:51 ET | [8-K](/filings/0001084991-26-000054.md) | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001084991-26-000054 |
| 2026-06-11 | 16:12 ET | [8-K](/filings/0001084991-26-000051.md) | 1.01 Entry into a material agreement; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001084991-26-000051 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001084991-26-000015.md), filed Mar 16, 2026.

## Forecast league

Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by \[object Promise\]. [Forecast this quarter](/leagues/2026q3/targets/ee3a0d53-568c-4ef0-a3cf-e07ba48f8a54)

## About the filer

- CIK: 1084991
- Tickers: NGS
- Exchange: NYSE
- SIC code: 1389 Oil & Gas Field Services, NEC
- State of incorporation: not reported
- Filer category: Accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:32 ET. No prices; not investment advice.