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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →An offshore driller’s backlog is a company-defined estimate of revenue opportunities tied to contracted future work. It can help indicate future activity, but it is not revenue already earned, cash already collected, or free cash flow (FCF). To assess what it may mean for investors, separate the contracted work, the revenue earned while performing it, and the cash left after operating costs, working capital and capital spending.
What does offshore drilling backlog mean?
Backlog is not a standardized industry measure. Each contractor sets its own definition, so a headline total is meaningful only alongside the company’s calculation method, measurement date and contract terms.
A common starting point is the eligible firm contract days multiplied by the dayrate assumed in the company’s backlog definition. But the details matter: companies may differ on which commitments count, which rate they use and whether mobilization or demobilization fees are included.
What counts as a commitment?
For example, Borr Drilling’s 2025 Form 20-F defines total contract backlog using firm commitments in definitive agreements, including binding letters of award and letters of intent. Its calculation uses firm contract days and maximum contract dayrate revenue, and includes mobilization and demobilization revenue. Future extension options count only if exercised; Borr excludes items such as capital or upgrade reimbursements, recharges and bonuses from this measure.
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That definition is not universal. Transocean’s reported measure, for example, excludes mobilization, demobilization, contract preparation, other incentive provisions and reimbursements it does not expect to be significant to contract drilling revenue. Comparing totals without reconciling those inclusions can make unlike measures look comparable.
How much backlog turns into revenue?
There is no reliable fixed conversion percentage. Backlog estimates potential revenue under a contractor’s stated assumptions; revenue is generally recognized as drilling services are performed and may differ from the backlog estimate because of actual operating conditions, rates and contract provisions.
Dayrates can change with operating status
Contracts may provide one rate for operating time and lower or zero rates when operations are interrupted or restricted. Noble describes this distinction in its filings, and Borr says revenue is recognized for the specific activities performed, which can result in a full, reduced or zero rate. Transocean also cautions that actual rates may be lower than the maximum rates used in its backlog calculation, and downtime or suspension can reduce earned revenue.
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Equipment breakdowns, repairs, weather and other operating restrictions can therefore affect both the time a rig is available and the rate paid for that time. A backlog calculation based on a maximum operating dayrate is not a prediction that the rig will earn that rate on every remaining contract day.
Contract scope and duration matter
Check what the contractor calls “firm,” whether options have been exercised, and what termination terms apply. A customer’s right to terminate or a contract’s early-termination provisions may affect how much work remains likely to be performed; the relevant company filing is the place to verify those terms. Backlog tied to a rig that is not expected to remain in the operating fleet also deserves separate attention.
Fee treatment is another source of variation. Borr includes mobilization and demobilization revenue in its total backlog definition, while Transocean excludes those items from the measure described above. Noble discusses estimated demobilization revenue but notes that the estimate can depend on contract-completion conditions and may be constrained. Reimbursements, preparation fees and incentives may also be treated differently or excluded.
Why revenue timing and cash timing differ
Even when a contractor recognizes revenue, it may not have collected the corresponding cash. Conversely, it can receive cash before recognizing the related revenue. To understand the timing, examine receivables, contract assets, contract liabilities and cash-flow disclosures alongside the revenue line.
Mobilization and demobilization accounting
Borr says pre-operating activities such as mobilization, contract preparation, customer-requested goods or services, and capital upgrades generally are not distinct promises in the contract. Mobilization amounts received are recorded as a contract liability and amortized to dayrate revenue over the firm term. Borr estimates demobilization revenue at contract inception and recognizes it over the firm term only when the amount is estimable and a significant reversal is not probable.
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Noble similarly describes mobilization and demobilization as not distinct within the contract, with related revenue and costs recognized over the initial contract term. Demobilization revenue can depend on conditions at completion and may be constrained by the contract facts and market conditions. These accounting treatments mean that an amount in backlog, recognized revenue and cash collected may fall into different periods.
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What recent company figures do—and do not—show
Company backlog figures are dated snapshots, not a live industry total. They also use different definitions, so the examples below should not be read as a direct ranking.
| Company and date | Reported figure | What the measure includes or signals |
|---|---|---|
| Transocean Ltd., February 19, 2026 | $6.06 billion in contract backlog | Company-defined as maximum contractual operating dayrate multiplied by remaining firm contract days, with certain probable performance provisions. It excludes mobilization, demobilization, contract preparation, other incentive provisions and reimbursements not expected to be significant to contract drilling revenue. It is not an industry total or a cash-flow forecast. |
| Noble Corporation plc, December 31, 2025 | Approximately $84.0 million | Noble’s filing says this portion of its backlog was associated with six rigs classified as held for sale. It is a reminder to check which rigs underpin a backlog total and whether they belong to the continuing operating fleet. |
The Transocean figure is specifically dated February 19, 2026; it should not be described as the company’s balance on a later date without a newer disclosure. Neither figure establishes what percentage of backlog will become FCF.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to analyze the path from backlog to free cash flow
FCF is a separate cash-flow analysis, not a direct output of backlog. A practical bridge begins with cash received from customers, then accounts for cash operating outflows, working-capital movements and capital expenditures. State clearly how interest and taxes are treated, because company presentations may define FCF differently.
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- Read the backlog definition and date. Identify eligible commitments, remaining firm days, rate assumptions, options, termination terms, fees and the rigs covered.
- Assess likely earned revenue. Consider contracted operating and standby rates, downtime exposure, restrictions and any conditions that could reduce or shift work.
- Check cash collection and working capital. Review receivables, contract assets and liabilities, and the cash-flow statement to see when billing and collection occur and whether working capital is absorbing cash.
- Subtract cash costs and investment needs. Examine operating cash outflows and maintenance, upgrade and other capital spending required to keep rigs working. Then apply the company’s stated FCF definition, including its treatment of interest and taxes.
The filings described here explain backlog and revenue recognition, but do not provide a reconciled backlog-to-FCF bridge for a named contractor. A specific conversion percentage would therefore be unsupported. For a company-level estimate, investors need current contract disclosures and cash-flow, working-capital and capital-spending information—not backlog alone.
How to compare two contractors’ backlogs
Before concluding that one contractor has stronger revenue visibility, compare the measures on the same basis:
Quick Recap
- Measurement date: Backlog changes as contracts are performed, won, amended or terminated.
- Commitments counted: Check treatment of firm days, letters of award or intent, exercised options, termination notices and performance provisions.
- Rate basis: Determine whether the calculation uses a maximum operating rate, current rate, blended rate or another assumption, and whether lower standby or interruption rates can apply.
- Fees and reimbursements: Reconcile mobilization, demobilization, preparation, upgrades, bonuses and reimbursable items.
- Fleet and operating risk: Identify rigs held for sale, not yet earning, or exposed to material downtime or termination conditions.
- Cash conversion: Separately compare collections, operating cash costs, working-capital effects and capital spending.
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