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 and component breakdown: mob/demob, cement plugs, casing pull, surface restoration, environmental, regulatory.
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 (NETL PRIMO, RFF/Raimi cost studies, state regulator publications) — organised for review by auditors, lenders and regulatory teams.
PDF executive summary plus the underlying Excel data file. Board-, lender- and buyer-ready.
Optional add-ons
Why us
PhD in reservoir engineering. Stanford alumnus. Industry track record across operators and research.
Grounded in publicly defensible references (SPE PRMS, NETL, RFF), not back-of-envelope rules of thumb.
The free P&A app on tools.petropt.com is powered by 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
Fixed scope, fixed price. Mutual NDA before any data review.
| Well count | Typical price |
|---|---|
| Up to 100 wells | $10k–$15k |
| 100–500 wells | $15k–$35k |
| 500–2,000 wells | $35k–$60k |
| 2,000+ wells | Custom |
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 Stanford-PhD reservoir 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.