equinor/resdata

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Software for reading and writing the result files from the Eclipse reservoir simulator.

Stars: 127
Forks: 103
Open beginner issues: 2
Indexed issues: 30
Avg merge: 2d 5h
Merged PRs (30d): 18

Dominant language: C++
License: GPL-3.0
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

30 open issues indexed

Unchecked input in rd_string_name() Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

equinor/resdata#1228 · Opened Jul 3, 2026
Remove functions related to get_num_cpu Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

equinor/resdata#1209 · Opened Jun 25, 2026
Investigate hypothesis failure Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

equinor/resdata#1198 · Opened Jun 22, 2026
Version 7 roadmap Open

epic

Difficulty 5/5 Over a week Newbie friendliness 25/100

equinor/resdata#1197 · 1 comment · Opened Jun 22, 2026
CI only tests Python 3.14 Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

equinor/resdata#1164 · Opened May 11, 2026
rd_kw_struct uses `char *data` which is UB. Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#1087 · Opened Nov 14, 2025
find_cell does not work for all concave cells, despite references to concavity in the code Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

equinor/resdata#1070 · Opened Oct 16, 2025
Reimplement rd_sum.pandas_frame() to use resfo Open

maintenance

Difficulty 4/5 3-5 days Newbie friendliness 38/100

equinor/resdata#1069 · 1 comment · Opened Oct 13, 2025
find_cell fails for a lot of simple input including SPE1 grid generated from flow Open

bug wontfix

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#1066 · 4 comments · Opened Oct 8, 2025
How to commit new keyword to EGRID file Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

equinor/resdata#1057 · 1 comment · Opened Sep 10, 2025
Error loading EGRID file using res2df and resdata Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

equinor/resdata#1041 · 6 comments · Opened Apr 3, 2025
Resolve warnings in documentation Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

equinor/resdata#1037 · Opened Apr 1, 2025
Resolve warnings from running tests Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 35/100

equinor/resdata#1019 · Opened Aug 31, 2024
Reading non-complaint grdecl files Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#963 · Opened Apr 9, 2024
Cannot build the project with cmake fetchContent Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

equinor/resdata#874 · 1 comment · Opened Oct 3, 2022
EclSum missing restart case fails silently Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#845 · Opened Dec 7, 2021
Difference between `EclSumKeyWordVector` and `eclsum.keys()` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#816 · 2 comments · Opened Jun 22, 2021
Limit EclRestartFile.restartView to certain keywords Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#814 · Opened Apr 28, 2021
Windows 10 Year 2038 OSError Open

bug wontfix

Difficulty 3/5 1-2 days Newbie friendliness 30/100

equinor/resdata#812 · 1 comment · Opened Mar 19, 2021
Support contigous vector of doubles in ecl_sum_data_add_new_tstep() Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#811 · Opened Mar 16, 2021
Option to load UNSMRY data as 32 bit floats Open

equinor/resdata#797 · 1 comment · 2 reactions · 1 assignee · Opened Jan 18, 2021
Possibility to initialize ecl_smspec_node directly Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

equinor/resdata#796 · 1 reaction · Opened Jan 12, 2021
Standard python file handle does not fly - update docs Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

equinor/resdata#732 · 1 comment · Opened Sep 25, 2020
Add support to use libecl in Java using JavaCPP Open

equinor/resdata#730 · 6 comments · 1 assignee · Opened Sep 19, 2020
Accessing grdecl grid cells without allocating memory for the whole file? Open

enhancement performance

Difficulty 5/5 Over a week Newbie friendliness 20/100

equinor/resdata#720 · 1 comment · Opened Aug 3, 2020
Include HH:MM:SS when reading simulation start Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

equinor/resdata#705 · Opened Mar 25, 2020
Crash when importing TRANNNC for dual porosity model Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

equinor/resdata#701 · 4 comments · Opened Mar 17, 2020
User report: reading values from grid with lgr Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

equinor/resdata#644 · 2 comments · Opened Aug 16, 2019
Various problems with the new smspec-code Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

equinor/resdata#585 · 1 comment · Opened Mar 13, 2019
ecl_sum_mock integer division error Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

equinor/resdata#329 · Opened Feb 12, 2018

equinor/resdata

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