Services / P&A Liability Inventory & Cost Model
A fixed-scope engagement that turns your inactive-well list into a defensible cost model, risk-ranked priority queue and per-well file organised to support your SEC disclosure, bonding redetermination or asset diligence process.
From $10,000 for up to 100 wells · 5–10 business day turnaround for portfolios under 1,000 wells · mutual NDA before any data review.
Who this is for
Operator
An operator with a growing inactive-well list, tightening state bonding rules, and a CFO who doesn't want a surprise on the next reserves report.
RBL lender / credit officer
The borrower's ARO number is high-level. You need an independent well-by-well liability range before redetermination, covenant review or credit committee.
M&A buyer / acquirer
The seller's ARO number looks too clean. You need a well-by-well liability range before LOI, price adjustment or borrowing-base discussion.
P&A contractor
You're a P&A contractor preparing a bid on an orphan-well program or private campaign. You need a defensible cost basis per well, not a rule-of-thumb $/foot.
What you get
Every engagement closes with an Excel data file your team can re-use and a PDF executive summary your board, lender or buyer can read in 10 minutes.
Every inactive well in your inventory, scored by P&A priority with low / mid / high cost bands. The supporting cost framework and references are documented privately in the delivered package.
Total liability range, distribution by state / district / age, top-50 priority wells.
Current bonded amount vs. modeled liability. Where you're under-bonded today.
Which 20 wells move the needle first, with cleanup logic explained.
Assumptions and references documented in full and organised for review by auditors, lenders and regulatory teams. Specific source list is included in the delivered package.
PDF executive summary plus the underlying Excel data file. Board-, lender- and buyer-ready.
Optional add-ons
Why us
Stanford PhD in energy systems optimization. Industry track record across operators and research.
Built to defensible industry standards. The specific references and frameworks behind each number are documented in the delivered package — for your auditor, lender, or board.
The P&A liability suite at tools.petropt.com runs on the same cost engine we use in the engagement — you see the methodology before you write a check.
5–10 business day turnaround for portfolios under 1,000 wells. No "estimated hours billed monthly."
How it works
20 minutes, free. You describe the portfolio, audience and deadline; we come back with fixed scope + price.
Standard 7-day turn on both.
CSV / Excel acceptable. Upload portal if you'd rather not email.
Score every well, build cost model, surface portfolio findings. One round of clarifying questions.
Excel + PDF + 30-minute walkthrough call. One round of revisions included.
Pricing
Final scope and price depend on portfolio size, data condition, states involved and the audience for the output (SEC disclosure, lender, buyer, board, internal). Mutual NDA before any data review.
Most first engagements land between $10k and $35k. Larger or unusually complex portfolios are scoped on the scoping call.
Scope honesty
This is a fast, defensible decision-support package. It is not a substitute for field execution, legal advice or a signed statutory opinion.
Field services. We're not a P&A field-services contractor — no rig pulls, no cement.
Regulatory filings. We don't file regulatory paperwork on your behalf — we give you the data file your regulatory team uses to file.
SEC reserves opinion. We're not a registered reserves auditor (Ryder Scott / NSAI / DeGolyer). If you need an SEC-quality independent reserves opinion, we'll refer.
FAQ
They have well lists and basin data. They do not produce a per-well cost model defensible to a lender or SEC disclosure team. We do — one-time, not subscription.
US-only for the standard engagement. International (especially North Sea, Canada) scoped on the call.
Complements a reserves report; not itself one. We're a founder-led engineering shop, not Ryder Scott / NSAI. If you need a signed reserves opinion, we'll refer.
Base coefficients for every US oil & gas state. State-specific bonding rules are available as an add-on if needed.
Book a 20-minute scoping call. We'll come back with fixed scope and a fixed price — or honestly tell you this isn't the right fit.
Or email info@petropt.com directly.