Download Petroleum Office
Free version includes Unit Converter and Engineering Tools. No credit card required.
Version 1.18.9450
Released 15 Nov 2025
Size 8.3 MB
Students & Faculty: Get full access for free with your university email.Learn more →
What's Included
Choose the plan that's right for you
Free Version
- Unit Converter (1500+ units)
- Engineering Tools
- Free Updates
- No Credit Card Required
- Function Library (200+ Excel functions)
Paid Plans
- Everything in Free
- Function Library (200+ Excel functions)
- Decline Curve Analysis
- PVT Calculations
- Well Flow & Productivity
- 7-Day Free Trial
Frequently Asked Questions
What are the requirements?
Petroleum Office requires Microsoft Excel 2010, 2013, 2016, 2019, or Office 365 for Windows and .NET Framework 4.7.2
How can I update?
To update an existing copy of Petroleum Office, just install the new version over the existing copy. It's that simple.
I installed the add-in but it didn't appear in Excel.
Most likely you need to run the setup file as Administrator. Right-click on setup file and choose "Run as administrator". Also check the Articles section for more troubleshooting suggestions.
Can I use my subscription on multiple computers?
Yes, you can log in from several PCs. However, we monitor active sessions per account. Suspicious usage patterns may result in subscription cancellation.See Pricing FAQs for details.
Is there a free version for students?
Yes! Students and faculty at participating universities get free access to the full Function Library through our Academic Program. Sign up with your university email for instant activation.
Have more questions? Contact us or visit ourPricing page for detailed information.