Find the
ARO gap.

Before the deal closes. Before the bond is written. Before the credit memo is approved.

Varro gives diligence, underwriting, and credit teams an independent challenge model for oil & gas ARO assumptions — asset-level cost ranges, timing risk, and variance against what operators report.

varro · variance engine v4
Apache Corporation
APA · 20,653 wells · 83% portfolio coverage
Reported ARO $2.4B
Varro P50 challenge estimate $9.8B
PV-adjusted variance +309%
Confidence HIGH
CHALLENGE REQUIRED
$7.4B estimated exposure gap
Built from public sources
Challenge ranges benchmark public decommissioning studies, ARO movements, and comparable abandonment outcomes. Varro is not an audit opinion.
The hidden diligence problem

ARO is reported as a number.
It behaves like a range.

Cost, timing, scope, discount rates, field life, campaign assumptions, weather windows, and regulatory pressure all move the liability. Most external teams only see the final provision.

M&A / Private Equity

You acquire a mature E&P portfolio. The seller’s ARO provision clears accounting review, but the operational abandonment cost is materially higher once wells, platforms, pipelines, and timing are modeled asset by asset.

The question is not “what did they disclose?” It is “what should this cost when cash leaves?”

Insurance / Bond Underwriting

The operator has asset history, engineering context, and abandonment assumptions. You receive a submission package, a bond request, or a broker memo. Varro gives your team a second estimate before you price the risk.

The conflict is not always fraud. It is information asymmetry.

Credit / Asset Risk

ARO does not hurt because it appears on a balance sheet. It hurts when production declines, license pressure rises, buyers walk, or regulators force action.

Timing risk is the difference between a footnote and a liquidity event.

Every ARO assumption can be challenged: cost, timing, scope, and confidence.
How it works

From operator disclosure to
independent challenge in under an hour.

01
Name the portfolio

Upload an asset list, enter a ticker, or name the operator. Varro matches wells and infrastructure against public jurisdictional datasets.

02
Model the cost range

We estimate P10/P50/P90 abandonment cost using comparable outcomes, basin and location factors, asset complexity, weather exposure, and jurisdiction-specific assumptions.

03
Challenge the reported number

Compare the modeled range to disclosed provisions and ARO roll-forward movements. Flag variance, confidence, timing risk, and the assumptions worth challenging.

Example signal

What an ARO challenge looks like.

A reproducible variance view for analysts who need to defend a diligence, underwriting, or credit decision — not another static consulting PDF.

varro.ai / signal / aro-challenge
Operators · variance flagged
APA Apache Corp +309%
TALO Talos Energy +452%
FANG Diamondback +127%
CNRL Canadian NR +49%
CVE Cenovus +42%
DVN Devon Energy +61%
XOM ExxonMobil LOW COV
Apache Corporation
APA · GOM / Permian / Anadarko · model v1.2.0
CHALLENGE REQUIRED
Reported ARO
$2.4B
Varro P50
$9.8B
PV-adj. gap
+309%
Coverage
83%
Challenge range — 2024 USD37,638 comparable records
P10 (optimistic)$3.8B
P50 (base case)$9.8B
P90 (conservative)$18.2B
Bias correction and uncertainty bands shown with source assumptions · exportable for IC, credit, underwriting, or diligence review
The alternative

Today’s process is slow, bespoke, and hard to reproduce.

Technical consultants remain necessary for deep asset diligence. Varro sits before that step: fast screening, challenge ranges, and a defensible first-pass view of where the provision may be wrong.

Before Varro — manual route
Wait weeks or months for consultant-led review
Start from operator-provided materials
Limited ability to screen many operators quickly
Static PDF outputs
Hard to update when filings, wells, or assumptions change
Expensive to repeat across portfolios
Weeks
to months for deep review
With Varro
Independent first-pass challenge in under an hour
Asset-level cost ranges and confidence scores
Variance against disclosed ARO provisions
Comparable-cost support and source traceability
Repeatable workflow for screening many operators
Exportable memo for diligence / underwriting review
< 1 hour
for first-pass challenge
Coverage

Start where liability is visible.
Expand where risk is hidden.

Varro currently covers 4.5M wells across 22 jurisdictions, with strongest signal quality where public filings, regulator datasets, and comparable cost outcomes overlap.

4.5M
wells indexed
22
jurisdictions
37,638
cost comparables
ARO
roll-forward ingestion in progress
US
Gulf of Mexico
~57k wells + platforms
US
Permian Basin
~200k wells
US
Appalachia
~299k wells
US
Mid-Continent
~954k wells
Canada
Alberta
~659k wells
Canada
Saskatchewan
~162k wells
UK
North Sea (NSTA)
~13k wells · pipelines · subsea
Norway
NCS (Sodir)
~2.4k wells · facilities
Australia
NW Shelf (NOPTA)
~3.6k wells · pipelines
Brazil
ANP Offshore
~7.7k wells
Argentina
SE_AR Basins
~9.6k wells
Global
Inference model
OPEC · Russia · China

Request an ARO
challenge run.

Send a ticker, operator, or asset list. We’ll return the variance signal, matched coverage, and the assumptions worth challenging.

We’ll respond within 24 hours with the first-pass signal. No spam. No generic demo. Just the variance view.

We've got it.
Expect your first-pass ARO challenge signal within 24 hours.
We'll reach out from seyi@varro.ai