From f137565bb6ef39b0d2a8c8b947e8186d560632cd Mon Sep 17 00:00:00 2001
From: Vegard Kippe <vkip@equinor.com>
Date: Thu, 26 Oct 2023 19:34:08 +0200
Subject: [PATCH] Avoid exception for non-group nodes

---
 opm/simulators/wells/BlackoilWellModelGeneric.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/opm/simulators/wells/BlackoilWellModelGeneric.cpp b/opm/simulators/wells/BlackoilWellModelGeneric.cpp
index 261425722..66d277629 100644
--- a/opm/simulators/wells/BlackoilWellModelGeneric.cpp
+++ b/opm/simulators/wells/BlackoilWellModelGeneric.cpp
@@ -912,12 +912,13 @@ BlackoilWellModelGeneric::
 assignNodeValues(std::map<std::string, data::NodeData>& nodevalues, const int reportStepIdx) const
 {
     nodevalues.clear();
-    if (reportStepIdx < 0) return;
 
     for (const auto& [node, pressure] : node_pressures_) {
         nodevalues.emplace(node, data::NodeData{pressure});
-        // Assign node values of group to GPR:WELLNAME
-        const auto& group = schedule().getGroup(node, reportStepIdx);
+        // Assign node values of well groups to GPR:WELLNAME
+        const auto& sched = schedule();
+        if (!sched.hasGroup(node, reportStepIdx)) continue;
+        const auto& group = sched.getGroup(node, reportStepIdx);
         for (const std::string& wellname : group.wells()) {
                 nodevalues.emplace(wellname, data::NodeData{pressure});
         }