Well Checked ROR Calculator

What If Emissions Reduction Isn't an Expense?

For years, operators have been told to measure the cost of emissions reduction projects.

We believe they should also measure the value.

Lost product.
Equipment degradation.
Unplanned downtime.
Maintenance inefficiencies.
Safety exposure.

These costs don't appear in most LDAR budgets, but they affect every operation.

Build your operating case

How Much Are Unmanaged Emissions Costing You?

Using production volumes, revenue assumptions, route-based inspection costs, and peer-reviewed emissions scenarios, the Well Checked ROR Calculator helps operators evaluate rate of return and relative value drivers using their own operating assumptions.

Start with

  1. 01 Legacy Well (Pre-OOOOa Era)
  2. 02 Modern Horizontal Well (OOOOa Era)
  3. 03 Recent Horizontal Well (OOOOb Era)
  4. 04 Break-Even Well Site

Then customize the assumptions to match your operation.

Your operating assumptions

Calculate your site return.

Choose a researched starting profile, unlock the assessment, and adjust every input to reflect your operation.

Site profile

Adjust the operating assumptions for the site you want to evaluate.

mcf/d
bbl/d
wells
$/mcf
Captured fugitive gas does not affect operating costs; only additional GP&T is incurred.
$/bbl
bbl/MMcf
$/gal
pieces

Site visits today

Most operators drive to each site 2–3 times a week. Continuous monitoring turns routine drive-bys into alert-driven visits.

/wk
/mo
hrs
$/hr
mi
$/mi

Recovered gas from faster leak detection

Quarterly optical gas imaging (OGI) surveys find an intermittent leak within one year only about 26% of the time, with a median 174 days to first detection when they do (Hodshire et al. 2025, ACS ES&T Air).

The example emission scenarios are based on Appalachian Methane Initiative (AMI) emissions measurements and published research on intermittent emissions. AMI data represent some of the lowest-emitting oil and gas production assets observed in a major U.S. producing basin, while the Hodshire study evaluated facilities equipped with continuous monitoring systems.

These scenarios are intended as conservative examples for exploring potential outcomes and what-if situations. If you have site-specific emissions data, monitoring results, or equipment-level leak rates, use the custom input options to create a scenario that better reflects your operation.

In a Zentinal deployment, continuous monitoring can provide earlier awareness of abnormal emission events and support faster investigation and mitigation than periodic inspection programs alone.

Adjust emission assumptions
kg/hr
%
%
kg/yr

LDAR program savings

EPA's OOOOb rules recognize continuous monitoring as an alternative compliance pathway (40 CFR 60.5398b(d)), replacing contractor OGI surveys. Requires gas detection — Zentinal Core™ or Zentinal IQ™.

/yr
$

What-if analysis

In the AMI 2025 Campaign causal analysis, mechanical failures, stuck dump valves, and flare malfunctions were among the most common unplanned causes of fugitive emissions. These failures also cause unplanned downtime if left undetected. Sound and sight monitoring catch what a methane sensor can't: valve and packing leaks on a compressor, bearings or stuffing box failing on a pumpjack, slipping belts or a failing cooling fan, or an unauthorized vehicle. This section has been left open for you to explore the possibilities based on your experience.

/mo
hrs
$/yr
$/mcf
Estimated rate of return
× estimated return

ROR is shown without dollar-level savings, payback, or Well Checked pricing.

Relative value drivers
Fewer routine site visits0%
Recovered gas0%
Downtime prevented0%
LDAR surveys replaced0%
Spill / overflow avoidance0%
Certified gas premium0%
Share of modeled value drivers100%

A Well Checked consultation can translate this value profile into a complete business case for your operation.

Discuss your operation with Well Checked

What this assessment shows

  • The relative mix of operational value drivers based on the assumptions you enter.
  • Research-informed starting profiles that can be customized to reflect your operation.
  • A focused value profile designed to support a follow-up operating discussion.

Research basis: Hodshire et al., ACS ES&T Air 2025; the Appalachian Methane Initiative 2025 Campaign; U.S. EIA production data; and U.S. EPA NSPS OOOOb technical support documents.

Well Checked Systems International · wellchecked.com · 24/7 sight, sound, and infrared monitoring for oil & gas.
This assessment is illustrative and based on the assumptions you enter. Contact us to discuss your operation.

From detection to operator value

Most competitors optimize for detection performance.

Well Checked has always optimized for operator value creation first.

Well Checked brings operators a solution, not another problem; cost savings, not an additional expense.