There is no free oil and gas production software worth running a real operation on. That is the honest answer. The “free” results on Google are either open-source petroleum engineering simulators (not production capture), spreadsheet templates you have to build yourself, or free trials of paid platforms. If your goal is to run a 30-well operation on free software, the hidden cost in pumper time, reconciliation hours, and missed barrels will run you more than a paid production app would.

This page names what actually exists in the free category, explains why the production capture job has no real free option, and points you at the closest thing to “free” that still works (a trial of a platform built for your operation).

What Free Means in Production Software

Free production software falls into four buckets.

  1. Open-source petroleum engineering simulators. Free. Not production capture. Built for reservoir modeling and academic work. OPM, UTCHEM, Boast.
  2. Spreadsheet templates. Free templates for daily gauge sheets and monthly production summaries circulate on forums and LinkedIn. Free in license, expensive in reconciliation time.
  3. Free tiers of paid platforms. Almost nonexistent in production software. A few vendors offer trials capped at 5 wells or 30 days.
  4. Free government-published forms. State regulator production report forms are free. Filling them out by hand is not.

The production capture category specifically (pumpers gauging tanks, recording run tickets, syncing to an office dashboard) has no serious free product. Every option in that category requires a paid license because the product requires field support, reliable sync, and data integrity that free software cannot deliver.

Why Free Does Not Work for Production Capture

Production capture software has to work on the lease, not in a lab.

  • Offline reliability. The pumper drives into a canyon in south Texas with no cell signal. The app has to keep capturing data and sync later. Free software rarely engineers for offline-first, because there is no one paying for that work.
  • Support when it fails. When the app does not sync at 6 PM on a Friday night, someone has to answer the phone. Free software does not come with a phone number.
  • Data integrity guarantees. If a barrel gets lost because of a sync error, the operator loses real money. Free software does not come with an SLA.
  • Ongoing maintenance. Android and iOS change every year. Regulator data formats change. State tax rules change. Free software either keeps up or gets stale.

A paid production app like GreaseBook prices at a few dollars per well per month. For a 30-well operator, that is under $200 a month. Compared to a single missed gauge, a single lost run ticket, or a single week of month-end reconciliation on paper, the math against “free” is not close.

The Free Tools That Do Help (In Narrow Cases)

If your ask is narrower than full production capture, a few free tools are useful.

Decline curve templates. Arps exponential and hyperbolic decline templates in Excel circulate freely. For a small shop that needs a decline plot once a quarter, they work. Paid tools (OFM, ComboCurve) pay off once decline work becomes regular.

Python decline-curve libraries. Free and open-source. Useful if you have someone on the team who can code.

State regulator forms. Texas RRC, Oklahoma OCC, New Mexico OCD, California CalGEM, and others publish their production report forms free. Free to fill out. Not free in time.

Petroleum engineering simulators. OPM (Open Porous Media), UTCHEM, and Boast are free for reservoir simulation work. They do not do production capture.

None of those close the production-capture loop on a real operation. They are useful adjacent tools, not a production system.

What Happens When You Try to Run Production on “Free”

The pattern we see in shops that try this is consistent.

Month one. Pumpers fill out paper gauge sheets. Office re-enters the data into an Excel workbook. Everything looks fine because the data load is light.

Month three. Data errors start showing up. A pumper transposed a number. A run ticket went missing. Month-end close takes six days instead of three.

Month six. The back office accountant has built a personal spreadsheet reconciliation workflow that only they understand. If they go on vacation, month-end close slips a week.

Month twelve. The operator notices that net revenue on three leases is trending below expected decline. After a production audit, they find 4 to 8 percent of production was leaking somewhere in the paper-to-Excel workflow. That leak is real dollars.

The 6% pump-to-net improvement we see on leases that migrate off paper onto a production app is a version of this story, reversed. Free is not cheap.

The Closest Thing to Free That Still Works

A free trial of a paid platform, run on a single route with one pumper, costs nothing for the trial period and tells you whether the tool fits. GreaseBook offers this. Pick one pumper, pick one route, run GreaseBook on it for a month. You will know by the end of the month whether your team adopts it and whether the data flows cleanly.

If it works, roll it out to the rest of the operation. If it does not, you walk away having paid nothing and learned something. The 200% money-back guarantee on the paid version covers the downside after the trial ends: if we are the wrong fit, we refund twice the purchase price and part ways friendly.

Who This Page Is Not For

This page is not for reservoir engineers or academic users shopping open-source simulation software. Those tools are real and useful, they just are not production capture. It is also not for enterprise shops with compliance-driven platform choices who must run a specific platform regardless of cost.

This page is for independent operators hoping to run production capture on free software. The honest answer is that the production category has no real free option and free Excel costs more than paid software.

Frequently Asked Questions

Is there free production software for small oil and gas operators?

Not really. The production capture category has no serious free product because the job requires reliable offline sync, field support, and data integrity that free software does not deliver. Free trials of paid platforms (including GreaseBook) are the closest option for a free evaluation.

Can I use a spreadsheet instead of production software?

You can, and many small operators do. The hidden cost is real. Across a five-pumper team on paper or Excel, operators typically lose 4 to 8 percent of production to bad gauge reads, missed downtime codes, and reconciliation errors. A paid production app priced at a few dollars per well per month usually pays for itself in one quarter against that leakage.

What is the cheapest production software for independents?

Most independent-operator production apps price at $2 to $5 per well per month. For a 30-well operation, that is under $200 a month all-in. The cheapest fit depends on what your pumpers will adopt and what integrations you need into accounting and allocation downstream.

About the author: Greg Archbald is the founder of GreaseBook. He built the product from inside the oil patch and has spent 15+ years on the operator side of oil and gas technology.

Ready for a Real Free Trial?

Skip the free-software rabbit hole and try the real thing on one route for a month. Take the 60-second quiz to see whether GreaseBook fits your operation, then spin up a trial on a single pumper before committing to anything.

Take the GreaseBook quiz.

Two minutes. No sales call, no pushy follow-up.

If GreaseBook lands and the fit turns out wrong inside year one, the 200% money-back guarantee refunds you twice the contract price. That is how confident we are in the pumper-adoption bar.

P.S. This page is not for hobbyist mineral owners tracking a single well, who are fine in Excel. No hard feelings. If you are still deciding, the quiz gives you a straight answer in the time it takes to refill your coffee.

**P.S.** "Free" production software is almost always free-tier for a paid product, or a tool that ships with unrelated services. Free-at-scale does not exist in this category because the data work is real. Budget for it and pick the right vendor.