Decommissioning & Abandonment Advisory

What will decommissioning and abandonment actually cost?

A Decommissioning and Abandonment Plan must state the amount to be contributed annually to the D&A Fund. That figure rests on a cost estimate, and the estimate rests on knowing what you actually have to remove. Send us your well schedule and facilities register. We price it obligation by obligation, and we tell you plainly what could not be priced and why.

  to the 9 September 2026 submission deadline for existing licences and leases, under Regulation 3(5)(c) of S.I. 15 of 2026.

The number is only half the answer

An estimate that hides its gaps is worth less than one that names them.

Any consultant can produce a total. The harder question, and the one a reviewer will ask, is what the total leaves out. Every obligation we cannot price defensibly is listed with the specific reason, so the estimate understates the liability by an amount you can see rather than by an amount you cannot.

RefObligationLowMost likelyHigh
WPA-01Well plug and abandonment, rig-based$600,000$2,100,000$6,000,000
OFD-01Flowstation demolition and removal$250,000$600,000$1,400,000
SRR-01Site remediation and restoration to close-out$60,000$300,000$1,200,000
Estimate total$2,048,913$5,786,932$15,339,286
MDR-01Not priced: disposal and recycling of recovered materials. No tonnage in the asset documentation supplied.

Extract from the specimen estimate. Synthetic field, illustrative figures.

What you receive

  • A priced schedule of the obligations the Regulations attach to your asset, each line carrying a low, most likely and high figure, its source, its price basis year, and how its quantity was derived.
  • A disclosed list of what could not be priced, with the specific reason for each. Nothing is silently included and nothing is silently dropped.
  • A document built to the conventions a reviewer expects: document number and revision status, basis of estimate, methodology, limitations, and a prepared, reviewed and approved strip left blank for your own sign-off.
  • Full provenance. Engine version, model version and run identifier are printed on the document, so the same identifiers reproduce the same estimate exactly.

How it works

What we need from you

  • Well count and status, or a well schedule
  • Facilities: flowstations, plants, terminals, storage
  • Pipelines and flowlines, lengths and diameters
  • Terrain, location and installation year
  • Planned cessation of production date
  • Any existing D&A plan or prior estimate

Missing items are not an obstacle. Anything absent is disclosed as an unpriced obligation with its reason, rather than filled in with an assumption.

See a complete estimate first. A full document on a synthetic field, in exactly the form you would receive it.

View Specimen

Your documents

Asset documentation is confidential and treated as such. It is used only to produce your estimate, it is not shared with third parties, and it is deleted on request. If you would prefer a non-disclosure agreement in place before sending anything, say so in your first email and we will handle that first.

Send the register. Get the number, and the list of what it leaves out.

Attach whatever asset documentation you hold. We will confirm what we can price from it before any work begins.

Request an Estimate Or email team@dayzero.energy directly, with your asset documentation attached.
A screening-level estimate is prepared from the asset documentation supplied and from public regulatory and benchmarking sources. It is not a bid, a quotation, or a guarantee of outturn cost. It does not constitute engineering design or a regulatory submission, and it is not legal or financial advice. Outturn costs depend on execution strategy, contractor market conditions, and regulatory determinations outside its scope.