The Waste Emissions Charge is $1,500 for every metric ton of methane above your threshold, and the spreadsheet everyone is using either ignores the threshold allowance or forgets the netting. Put your Subpart W figure in, get the number, see exactly which line moved it — on your phone, in the field, with no signal.
One-time purchase. No subscription. No account. Works offline.
Your Subpart W submission gives you tons. The question the finance meeting is actually asking is what it costs. Enter the reported figure and the estimator returns the annual liability in dollars, at the rate for the year you are modelling.
Emissions below the statutory intensity threshold are not charged. The allowance is a percentage of gas sent to sale — 0.20% for production, 0.05% non-production, 0.11% transmission — and skipping it is the single most common way an in-house estimate comes out far too high.
Plugged and permanently shut-in wells, unreasonable permitting delay, the regulatory compliance exemption and below-threshold headroom netted from commonly owned facilities in the same basin. Each is its own line, so you can see what every one is worth.
Print the estimate as a one-page summary with every input, every deduction, the rate applied and the total — or export CSV for the model. Save scenarios per facility and compare them side by side.
Your Subpart W methane figure for the year, in metric tons — or in Mcf, converted at a factor you can override with your own gas analysis.
Production, non-production, transmission, or a manual entry. Sets the intensity threshold, which you can then change.
The throughput the threshold allowance is calculated from. Leave it out and the tool warns you that the whole figure is being treated as liable.
Plugged and permanently shut-in wells, emissions from unreasonable permitting delay, and the regulatory compliance exemption.
Below-threshold headroom at other facilities under common ownership in the same basin, applied against this one.
$900 for 2024, $1,200 for 2025, $1,500 for 2026 and later — each editable, so a sensitivity case does not need a new tool.
Net liable emissions are floored at zero. A facility already under its threshold owes nothing, and the surplus is reported as headroom you may be able to net against another facility rather than as a negative charge.
Every line is shown, so the number is never something you have to take on trust.
Oil Rigs Now has served oilfield professionals since 2011. This is a planning estimator, not a regulatory filing tool — it does not submit anything to any agency, it does not measure any emissions, and it is not legal, tax or compliance advice. It applies the published thresholds, exemptions and rates to figures you supply, and shows every line so the result can be checked against your actual GHGRP Subpart W submission and confirmed with a qualified compliance advisor.
Everything stays on your device. Nothing is uploaded, no account is created, and the app keeps working when the truck has no bars.