CHRYSAOR (U.K.) SIGMA LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2026-11-16 (in 6mo)
Last made up 2025-11-02
Watchouts
None on the register
Cash
—
Latest balance sheet
Net assets
£1B
USD 1,472,675,000
+3% vs 2023
Employees
0
Average over period
Profit before tax
£83M
USD 111,674,000
+61.4% vs 2023
Net assets
2-year trend · vs Energy median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | £74,875,533 | £127,405,995 | |
| Operating profit | £61,044,330 | £80,417,134 | |
| Profit before tax | £51,711,146 | £83,482,096 | |
| Net profit | £10,795,395 | £32,472,154 | |
| Cash | — | — | |
| Total assets less current liabilities | £1,103,273,529 | £1,151,966,809 | |
| Net assets | £1,068,428,646 | £1,100,900,800 | |
| Equity | £1,068,428,646 | £1,100,900,800 | |
| Average employees | 0 | 0 | |
| Wages | — | — | |
| Directors' remuneration | — | — |
Figures converted to GBP from USD at 0.748 per USD (Frankfurter spot rate) — hover any figure for the original. — indicates the figure wasn't present under that line item in that period. About these numbers
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
+70.2%
£74,875,533 £127,405,995
-
Cash
—
Not reported
-
Net assets
+3%
£1,068,428,646 £1,100,900,800
-
Employees
—
Not reported
-
Operating profit
+31.7%
£61,044,330 £80,417,134
-
Profit before tax
+61.4%
£51,711,146 £83,482,096
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Operating margin | 81.5% | 63.1% | |
| Net margin | 14.4% | 25.5% | |
| Return on capital employed | 5.5% | 7.0% | |
| Gearing (liabilities / total assets) | 18.9% | 24.8% | |
| Current ratio | 5.10x | 3.89x | |
| Interest cover | 6.54x | 54.55x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 1 time since incorporation
- CHRYSAOR (U.K.) SIGMA LIMITED 2019-10-01 → present
- CONOCOPHILLIPS (U.K.) SIGMA LIMITED 2011-11-02 → 2019-10-01
Audit & accounting basis
- Accounting basis
- FRS 101
- Reporting scope
- Standalone (parent only)
- Auditor
- Ernst & Young LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The directors have adopted the going concern basis of accounting for the preparation of the financial statements as the Company's ultimate parent company, Harbour Energy plc, has undertaken to directly provide the necessary financial support to the Company, as and when required, to meet all liabilities for a period of 12 months from the date of signing these financial statements.”
Group structure
- CHRYSAOR (U.K.) SIGMA LIMITED · parent
- Chrysaor (U.K.) Theta Limited 100%
- Chrysaor (U.K.) Lambda Limited 100%
Significant events
- “During 2024, the Group drilled the Callanish F6 infill well which was brought online in July.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 23 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| HARBOUR ENERGY SECRETARIES LIMITED | Corporate Secretary | 2022-10-10 | — | — |
| BARR, Scott | Director | 2024-12-12 | Jul 1976 | British |
| LANDES, Howard Ralph | Director | 2021-10-20 | Dec 1975 | British |
| SCOTT, Russell | Director | 2024-12-12 | Sep 1973 | British |
Show 23 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| FARRELL, Joseph Anthony | Secretary | 2018-03-29 | 2019-05-22 |
| FLETCHER, Angela Sarah Helen | Secretary | 2011-11-02 | 2014-04-23 |
| GRIMSHAW, David | Secretary | 2011-11-02 | 2019-09-30 |
| LANDES, Howard Ralph | Secretary | 2019-09-30 | 2022-10-10 |
| PEPIN, Jean-Francois Jacques Basile | Secretary | 2013-05-13 | 2014-08-14 |
| STIRRUP, Edith Jeannie | Secretary | 2011-11-02 | 2012-04-30 |
| ANDERSON, Robert Hendry | Director | 2011-11-02 | 2013-05-13 |
| CHENIER, David Eric | Director | 2012-04-19 | 2015-08-01 |
| CONWAY, Christopher William | Director | 2011-11-02 | 2012-04-30 |
| GAUTREY, Christopher | Director | 2011-11-02 | 2011-12-23 |
| HASTINGS, Andrew David Richard | Director | 2011-11-02 | 2018-06-15 |
| KING, Terri Gay | Director | 2017-01-05 | 2019-09-30 |
| KIRK, Philip Andrew | Director | 2019-09-30 | 2022-02-28 |
| KRANE, Alexander Lorentzen | Director | 2021-10-20 | 2024-12-12 |
| MACKLON, Dominic Edward | Director | 2015-08-01 | 2017-01-05 |
| OSBORNE, Andrew Jon | Director | 2019-09-30 | 2021-10-26 |
| SCOTT, Russell | Director | 2018-09-25 | 2019-09-30 |
| SIMPSON, Katherine Susan | Director | 2018-06-15 | 2019-05-22 |
| STALKER, Ross Graham | Director | 2015-10-31 | 2018-09-25 |
| WARRENDER, John Mcandrew | Director | 2011-11-02 | 2013-07-03 |
| WARWICK, Paul Cyril | Director | 2011-11-02 | 2012-04-30 |
| WOLFE, Patrick | Director | 2019-05-22 | 2019-09-30 |
| WRIGHT, Michael Don | Director | 2013-05-13 | 2015-10-29 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Chrysaor Production (U.K.) Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2023-11-01 | Active |
| Chrysaor Production (U.K.) Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2021-11-08 | Ceased 2023-11-01 |
| Chrysaor E&P Limited | Corporate entity | Significant influence | 2019-09-30 | Ceased 2021-11-08 |
| Conocophillips (U.K.) Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-06-30 | Ceased 2019-09-30 |
Filing timeline
Last 20 of 103 total filings
Material constitutional events — rename, articles re-file, resolution
- 2026-04-23 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-04-30 | CH01 | officers | Change person director company with change date | |
| 2026-04-23 | SH20 | capital | Legacy | |
| 2026-04-23 | SH19 | capital | Capital statement capital company with date currency figure | |
| 2026-04-23 | CAP-SS | insolvency | Legacy | |
| 2026-04-23 | RESOLUTIONS | resolution | Resolution | |
| 2025-11-10 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-09-24 | AA | accounts | Accounts with accounts type full | |
| 2025-09-01 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2025-07-02 | CH04 | officers | Change corporate secretary company with change date | |
| 2024-12-20 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2024-12-20 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2024-12-16 | TM01 | officers | Termination director company with name termination date | |
| 2024-12-16 | AP01 | officers | Appoint person director company with name date | |
| 2024-12-16 | AP01 | officers | Appoint person director company with name date | |
| 2024-11-13 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2024-09-26 | AA | accounts | Accounts with accounts type full | |
| 2024-08-16 | AD01 | address | Change registered office address company with date old address new address | |
| 2023-11-14 | PSC02 | persons-with-significant-control | Notification of a person with significant control | |
| 2023-11-13 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2023-11-02 | CS01 | confirmation-statement | Confirmation statement with no updates |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 9
- Capital events
- 2
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.