# ONE Gas, Inc.: overview

OGS · NYSE · CIK 1587732 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

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

Revenue is not reported in this company’s XBRL financial statements.

## 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 | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Net margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Diluted EPS | $ per share | [0.34](/filings/0001587732-25-000055.md) | not reported | [1.98](/filings/0001587732-26-000021.md) | [0.53](/filings/0001587732-26-000035.md) | [0.44](/filings/0001587732-25-000055.md) | not reported | [2.04](/filings/0001587732-26-000021.md) | [0.74](/filings/0001587732-26-000035.md) |
| Free cash flow | $m | [(126) d](/filings/0001587732-25-000055.md) | [(117) d](/filings/0001587732-26-000009.md) | [111](/filings/0001587732-26-000021.md) | [(9.1) d](/filings/0001587732-26-000035.md) | [(105) d](/filings/0001587732-25-000055.md) | [(125) d](/filings/0001587732-26-000009.md) | [19.8](/filings/0001587732-26-000021.md) | [37.5 d](/filings/0001587732-26-000035.md) |

- Revenue. XBRL not reported.
- Gross margin (gross profit / revenue). XBRL not reported.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss. 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 | [1,809](/filings/0001587732-23-000015.md) | [2,578](/filings/0001587732-23-000015.md) | not reported | not reported | not reported |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [17.2%](/filings/0001587732-24-000013.md) | [13.6%](/filings/0001587732-25-000013.md) | not reported | not reported | not reported |
| Net margin | % | [11.4%](/filings/0001587732-24-000013.md) | [8.6%](/filings/0001587732-25-000013.md) | not reported | not reported | not reported |
| Diluted EPS | $ per share | [3.85](/filings/0001587732-24-000013.md) | [4.08](/filings/0001587732-25-000013.md) | [4.14](/filings/0001587732-26-000009.md) | [3.91](/filings/0001587732-26-000009.md) | [4.37](/filings/0001587732-26-000009.md) |
| Free cash flow | $m | [(2,031)](/filings/0001587732-24-000013.md) | [961](/filings/0001587732-25-000013.md) | [273](/filings/0001587732-26-000009.md) | [(335)](/filings/0001587732-26-000009.md) | [(128)](/filings/0001587732-26-000009.md) |

- Revenue. XBRL Revenue: us-gaap:Revenues.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:Revenues.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:Revenues.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; 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/ogs/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 | $701.3m | 9,099,077 |  | Reduced −15,999 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $286.4m | 3,716,434 |  | Added +126,441 |
| [AMERICAN CENTURY COMPANIES INC](/funds/748054.md) | 2026-06-30 | $273.1m | 3,543,229 |  | Added +167,836 |
| [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $251.9m | 3,268,798 |  | Added +231,913 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $217.4m | 2,821,399 |  | Added +45,394 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $150.9m | 1,957,673 |  | Added +376,808 |
| [Energy Income Partners, LLC](/funds/1388814.md) | 2026-06-30 | $135.9m | 1,763,956 |  | Added +432,880 |
| [ALLIANCEBERNSTEIN L.P.](/funds/1109448.md) | 2026-06-30 | $127.9m | 1,484,889 |  | Reduced −30,946 |
| [AQR CAPITAL MANAGEMENT LLC](/funds/1167557.md) | 2026-06-30 | $86.3m | 1,119,752 |  | Added +613,651 |
| [EARNEST PARTNERS LLC](/funds/1102578.md) | 2026-06-30 | $85.6m | 1,110,347 |  | Reduced −42,781 |

## Recent filings

[All 986 filings](/companies/ogs/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-09-29 | 16:25 ET | [8-K](/filings/0001587732-26-000046.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001587732-26-000046 |
| 2026-09-25 | 16:27 ET | [8-K](/filings/0001587732-26-000044.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001587732-26-000044 |
| 2026-09-08 | 16:27 ET | [8-K](/filings/0001587732-26-000039.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001587732-26-000039 |
| 2026-08-13 | 16:06 ET | [8-K](/filings/0001193125-26-349155.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-26-349155 |
| 2026-08-05 | 16:24 ET | [10-Q](/filings/0001587732-26-000035.md) | Quarterly report, period 2026-06-30 | 0001587732-26-000035 |
| 2026-08-04 | 16:18 ET | [8-K](/filings/0001587732-26-000033.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001587732-26-000033 |
| 2026-08-04 | 16:05 ET | [8-K](/filings/0001193125-26-332771.md) | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001193125-26-332771 |
| 2026-07-13 | 16:15 ET | [8-K](/filings/0001193125-26-302034.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-302034 |
| 2026-07-08 | 16:36 ET | [8-K](/filings/0001587732-26-000029.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001587732-26-000029 |
| 2026-05-27 | 16:01 ET | [8-K](/filings/0001193125-26-241844.md) | 5.07 Shareholder vote results | 0001193125-26-241844 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001587732-26-000009.md), filed Feb 19, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 1587732
- Tickers: OGS
- Exchange: NYSE
- SIC code: 4924 Natural Gas Distribution
- State of incorporation: OK
- Filer category: Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 27, 2026, 17:30 ET. No prices; not investment advice.