diff --git a/ci/testkomodo.sh b/ci/testkomodo.sh
index ea3727869..4f961c7ac 100644
--- a/ci/testkomodo.sh
+++ b/ci/testkomodo.sh
@@ -1,35 +1,65 @@
+XTG_TEST_RUNPATH=$CI_TEST_ROOT/run
+
+RMS_VERSIONS=(
+    12.1.4
+    13.1.2
+    14.1.0
+)
+
+run_tests() {
+    copy_test_files
+    start_tests
+}
+
 copy_test_files () {
-    mkdir $CI_TEST_ROOT/testpath/
-
-    pushd $CI_TEST_ROOT/testpath
-    cp -r $CI_SOURCE_ROOT/tests tests
-    cp -r $CI_SOURCE_ROOT/conftest.py conftest.py
-    ln -s $CI_SOURCE_ROOT/examples
-    ln -s $CI_SOURCE_ROOT/xtgeo-testdata
-    git clone --depth=1 https://github.com/equinor/xtgeo-testdata ../xtgeo-testdata
+    git clone --depth=1 https://github.com/equinor/xtgeo-testdata $CI_TEST_ROOT/xtgeo-testdata
+    # xtgeo tests look two directories back for xtgeo-testdata
+    mkdir -p $XTG_TEST_RUNPATH
+    cp -r $CI_SOURCE_ROOT/tests $XTG_TEST_RUNPATH
+    ln -s $CI_SOURCE_ROOT/conftest.py $XTG_TEST_RUNPATH/conftest.py
+    ln -s $CI_SOURCE_ROOT/pyproject.toml $XTG_TEST_RUNPATH/pyproject.toml
+}
+
+start_tests () {
+    pushd $CI_TEST_ROOT
+    echo "Testing xtgeo against Komodo"
+    install_and_test
+    for version in ${RMS_VERSIONS[@]}; do
+        test_in_roxenv $version
+    done
     popd
 }
 
-install_package () {
-    pip install ".[dev]"
+install_and_test () {
+    install_package
+    run_pytest
 }
 
-start_tests () {
-    pushd $CI_TEST_ROOT/testpath
-    pytest -n auto -vv
+install_package () {
+    pushd $CI_SOURCE_ROOT
+    pip install ".[dev]"
     popd
 }
 
-cleanup () {
-    rm -rf $CI_TEST_ROOT/testpath/../xtgeo-testdata
+run_pytest () {
+    pushd $XTG_TEST_RUNPATH
+    pytest -n 4 -vv
+    popd
 }
 
-run_tests() {
-    copy_test_files
+test_in_roxenv () {
+    set +e
+    source /project/res/roxapi/aux/roxenvbash $1
+    # Unsetting an empty PYTHONPATH after sourcing roxenvbash
+    # may result in an error.
+    unset PYTHONPATH
+    set -e
 
-    install_package
+    python -m venv roxenv --system-site-packages
 
-    pushd $CI_TEST_ROOT
-    start_tests
-    cleanup
+    source roxenv/bin/activate
+    echo "Testing xtgeo against RMS $1"
+    install_and_test
+    deactivate
+    rm -rf roxenv
 }