ROCKROSE UKCS 10 LIMITED

1. ROCKROSE UKCS 10 LIMITED 2019-07-02 → present
2. MARATHON OIL WEST OF SHETLANDS LIMITED 2011-06-29 → 2019-07-02
3. MARATHON PETROLEUM WEST OF SHETLANDS LIMITED 2000-11-06 → 2011-06-29

Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers

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.

Accounting basis

FRS 101

Reporting scope

Standalone (parent only)

Auditor

MHA

Audit opinion

Unqualified (clean)

Going concern

Affirmed

“The Directors have, at the time of approving the financial statements, a reasonable expectation that the Company has available financial resources to meet any future obligations for the foreseeable future. Additionally, Directors have received assurance from the parent company, RockRose Energy Limited, that it will make available financial support as necessary for the Company to meet its liabilities in the normal course of the activities, as they fall due for payment, for at least the next twelve months from the date of approval of these financial statements. Accordingly, the financial statements have been prepared on a going concern basis.”

Significant events

• “The UK Government announced, in October 2024, that the Energy Profits Levy (EPL) would remain in place until no later than 31 March 2030 instead of the former end date of 31 March 2028. This was then enacted in March 2025.”
• “Following the significant decrease in gas prices in 2024, management performed an impairment review of the Company's assets. As a result, a £61.4 million impairment has been recognised in relation to the Company's assets in 2024. Of this, £31.9 million relates to the BCA CGU, £16.9 million to Sean and £12.6 million to the GLA CGU. The total recoverable amount of the assets impaired was £63.9 million.”

Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers

Filings

2

last 12 months

Capital events

0

last 24 months

Officers appointed

0

last 12 months

Officers resigned

0

last 12 months

Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.

• Turnover

  -32.4%

  £236,825,000 → £160,039,000

• Cash

  -74.8%

  £42,751,000 → £10,779,000

• Net assets

  -16.7%

  -£258,669,000 → -£301,989,000

• Employees

  0%

  2 → 2

• Operating profit

  -123.6%

  £120,628,000 → -£28,522,000

• Profit before tax

  -153.2%

  £100,140,000 → -£53,225,000

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