Legal Notices & Open-Source Credits
1. OPM Flow — GPL-3.0 Usage Statement
RUNSPEC.io uses OPM Flow as a separate simulation engine. OPM Flow is open-source software licensed under the GNU General Public License v3.0 (GPL-3.0). RUNSPEC.io does not distribute OPM Flow and does not incorporate OPM Flow source code into the RUNSPEC.io application. OPM Flow is installed independently on Hetzner Cloud compute nodes; simulation input files are written to disk, OPM Flow is invoked as a subprocess, and output files are read back from disk independently. No OPM Python bindings are imported.
OPM Flow source code: github.com/OPM/opm-simulators
2. Open-Source Components
All libraries are used server-side only; no library binaries are distributed to end users.
Copyleft & Weak-Copyleft
| Library | License |
|---|---|
| OPM Flow | GPL-3.0 |
| xtgeo | LGPL-3.0 |
| xtgeoviz | LGPL-3.0 |
| pyscal | LGPL-3.0+ |
| gstools | LGPL-3.0 |
| gstools-cython | LGPL-3.0+ |
| RoffIO | LGPL-3.0+ |
| resfo | LGPL-3.0+ |
| segyio | LGPL-3.0+ |
| paramiko | LGPL-2.1 |
| certifi | MPL-2.0 |
Permissive Licenses
| Library | License |
|---|---|
| Flask | BSD-3 |
| Werkzeug | BSD-3 |
| Jinja2 | BSD-3 |
| Flask-Login | MIT |
| Authlib | BSD-3 |
| anthropic SDK | MIT |
| numpy | BSD-3 |
| scipy | BSD-3 |
| pandas | BSD-3 |
| matplotlib | PSF |
| PyKrige | BSD-3 |
| shapely | BSD-3 |
| requests | Apache-2.0 |
| pypdfium2 | BSD-3 / Apache-2.0 |
| pypdf | BSD-3 |
| Pillow | HPND |
| neqsim | Apache-2.0 |
| psutil | BSD-3 |
| pydantic | MIT |
| gunicorn | MIT |
| hcloud | MIT |
| h5py | BSD-3 |
| pyarrow | Apache-2.0 |
| meshio | MIT |
| PyYAML | MIT |
3. LGPL Compliance Statement
LGPL-licensed libraries (xtgeo, xtgeoviz, pyscal, gstools, RoffIO, resfo, segyio, paramiko) are used unmodified as dynamically linked packages installed via pip. Users may substitute modified versions of these libraries at runtime by replacing the installed packages in the server environment. Full source code for each library is available at the links in the full notices page.
4. Third-Party Trademarks
ECLIPSE™ and E100™ are trademarks of SLB (Schlumberger). Petrel™ is a trademark of SLB. ResInsight is open-source software (GPL-3.0) by Equinor ASA. ZYCOR™ is a trademark of Landmark Graphics Corporation. Microsoft Excel® is a registered trademark of Microsoft Corporation. RUNSPEC.io is not affiliated with, endorsed by, or a product of any of these companies.
5. Contact
For open-source compliance queries: legal@runspec.io