After-tax economics case

Can we translate a reviewed pretax monthly OCF/revenue/volume stream into a planning-grade after-tax NPV/IRR sensitivity using explicit IDC/tangible, depreciation, income-tax, and depletion assumptions; separately run the single-period production-tax/depletion cross-check, disclose that the two engines are not a reconciled taxpayer return, and produce an analyst-authored workpaper for tax-professional review? Trigger phrases: after tax economics case, after-tax economics case. Produces: cited after-tax economics case workpaper and decision flags.

Reserves And Subsurface · Underwriting · v1

Measured quality evidence

Quality lift unmeasured

Registry maturity does not prove response or artifact quality. No qualifying same-model skill-on versus no-skill improvement has been verified.

Required comparison: same model with this skill enabled versus the same model without the skill.

Inputs and output

Required inputs

Ad Valorem Rate
Annual Cost Depletion Basis USD
Annual Property Taxable Income Before Depletion USD
Annual Remaining Recoverable BOE Begin
Annual Taxable Income Before Depletion USD
Cost Depletion Basis
Deal ID
Discount Rate
Federal Tax Rate
Gross Revenue
Idc Pct Of Capex
Income Tax Rate
Independent Producer
Intangible Drilling Cost
Operating Cost
Operator Working Interest
Percentage Depletion Rate
Pretax Monthly BOE Net
Pretax Monthly Ocf USD
Pretax Monthly Revenue USD
Severance Tax Rate
Source Documents
State Tax Rate
Tangible Depr Life Years
Tangible Pct Of Capex
Taxable Income Before Depletion
Units Produced
Units Remaining
Well Capex USD

Optional inputs

After Tax Markdown
Category Pretax Monthly Ocf USD
Deal Name
Pv Discount Rate Strip

Required source documents

Source Documents
Model

Expected outputs

After Tax Economics Case

Buyer-profile access

Policy visibility is not execution proof. Authentication is checked before a run.

Available

Read-only connection

The skill entry point is callable. Any downstream write or external action is checked separately.

Available

Partner workspace

The skill entry point is callable. Any downstream write or external action is checked separately.

External-action review

Review review applies before a consequential external or binding action. Analysis and working artifacts remain available before that review.

No specific external-action review item is declared.

Input gaps and limits

Dependent input gaps

After Tax Markdown is missing or unverified: The dependent calculation remains open. CRUX returns the other supported work and names the exact input needed.

Known limitations

Preview capability: useful but incomplete eval or SME coverage; human review required.
Do not use as filing-grade tax advice, a taxpayer return, a transaction tax/asset-versus-equity structure memo, or a substitute for a CPA/tax professional. Use severance-tax-by-state for jurisdictional production-tax computation and do not run without the reviewed monthly model.

Relationships

Outcome agents

reserves-nav-underwriter

Workflow-registry jobs

No workflow relationship is declared.

Use this skill

Authentication and the required buyer profile are checked before any work runs.