Free version includes Unit Converter and Engineering Tools. No credit card required.
Choose the plan that's right for you
Petroleum Office requires Microsoft Excel 2010, 2013, 2016, 2019, or Office 365 for Windows and .NET Framework 4.7.2
To update an existing copy of Petroleum Office, just install the new version over the existing copy. It's that simple.
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.
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.
Have more questions? Contact us or visit our Pricing page for detailed information.