diff --git a/ApplicationCode/Application/RiaSummaryCurveDefinition.cpp b/ApplicationCode/Application/RiaSummaryCurveDefinition.cpp
index 5d1add2abc..823c57d450 100644
--- a/ApplicationCode/Application/RiaSummaryCurveDefinition.cpp
+++ b/ApplicationCode/Application/RiaSummaryCurveDefinition.cpp
@@ -116,7 +116,7 @@ QString RiaSummaryCurveDefinition::curveDefinitionText() const
 {
     QString caseName;
     if ( summaryCase() )
-        caseName = summaryCase()->caseName();
+        caseName = summaryCase()->displayCaseName();
     else if ( ensemble() )
         caseName = ensemble()->name();
 
@@ -176,11 +176,11 @@ bool RiaSummaryCurveDefinition::operator<( const RiaSummaryCurveDefinition& othe
 
         if ( m_summaryCase )
         {
-            summaryCaseName = m_summaryCase->caseName();
+            summaryCaseName = m_summaryCase->displayCaseName();
         }
         if ( other.summaryCase() )
         {
-            otherSummaryCaseName = other.summaryCase()->caseName();
+            otherSummaryCaseName = other.summaryCase()->displayCaseName();
         }
 
         // First check if names are different to ensure stable alphabetic sort
diff --git a/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryPlotFeatureImpl.cpp b/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryPlotFeatureImpl.cpp
index 8e84f2651c..aba153d100 100644
--- a/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryPlotFeatureImpl.cpp
+++ b/ApplicationCode/Commands/SummaryPlotCommands/RicSummaryPlotFeatureImpl.cpp
@@ -748,7 +748,7 @@ std::set<RifEclipseSummaryAddress>
             if ( !usedFilters[cfIdx] )
             {
                 RiaLogging::warning( "Vector filter \"" + summaryAddressFilters[static_cast<int>( cfIdx )] +
-                                     "\" did not match anything in case: \"" + sumCase->caseName() + "\"" );
+                                     "\" did not match anything in case: \"" + sumCase->nativeCaseName() + "\"" );
             }
         }
     }
@@ -780,7 +780,7 @@ std::vector<RimSummaryCurve*> RicSummaryPlotFeatureImpl::addCurvesFromAddressFil
         if ( !usedFilters[cfIdx] )
         {
             RiaLogging::warning( "Vector filter \"" + curveFilters[static_cast<int>( cfIdx )] +
-                                 "\" did not match anything in case: \"" + summaryCase->caseName() + "\"" );
+                                 "\" did not match anything in case: \"" + summaryCase->nativeCaseName() + "\"" );
         }
     }
 
diff --git a/ApplicationCode/FileInterface/RifDataSourceForRftPlt.cpp b/ApplicationCode/FileInterface/RifDataSourceForRftPlt.cpp
index a449f80ec2..b500e6ddd3 100644
--- a/ApplicationCode/FileInterface/RifDataSourceForRftPlt.cpp
+++ b/ApplicationCode/FileInterface/RifDataSourceForRftPlt.cpp
@@ -244,7 +244,7 @@ bool operator<( const RifDataSourceForRftPlt& addr1, const RifDataSourceForRftPl
     {
         if ( addr1.summaryCase() && addr2.summaryCase() )
         {
-            if ( addr1.summaryCase()->caseName() == addr2.summaryCase()->caseName() )
+            if ( addr1.summaryCase()->displayCaseName() == addr2.summaryCase()->displayCaseName() )
             {
                 if ( addr1.ensemble() && addr2.ensemble() )
                 {
@@ -252,7 +252,7 @@ bool operator<( const RifDataSourceForRftPlt& addr1, const RifDataSourceForRftPl
                 }
                 return addr1.ensemble() < addr2.ensemble();
             }
-            return addr1.summaryCase()->caseName() < addr2.summaryCase()->caseName();
+            return addr1.summaryCase()->displayCaseName() < addr2.summaryCase()->displayCaseName();
         }
         return addr1.summaryCase() < addr2.summaryCase();
     }
diff --git a/ApplicationCode/ProjectDataModel/RimOilField.cpp b/ApplicationCode/ProjectDataModel/RimOilField.cpp
index ec039f9bcf..7909c405d5 100644
--- a/ApplicationCode/ProjectDataModel/RimOilField.cpp
+++ b/ApplicationCode/ProjectDataModel/RimOilField.cpp
@@ -28,11 +28,8 @@
 #include "RimGeoMechModels.h"
 #include "RimMeasurement.h"
 #include "RimObservedDataCollection.h"
-#include "RimObservedSummaryData.h"
-#include "RimSummaryCase.h"
 #include "RimSummaryCaseMainCollection.h"
 #include "RimSurfaceCollection.h"
-#include "RimValveTemplateCollection.h"
 #include "RimWellPathCollection.h"
 
 CAF_PDM_SOURCE_INIT( RimOilField, "ResInsightOilField" );
@@ -128,73 +125,6 @@ const RimValveTemplateCollection* RimOilField::valveTemplateCollection() const
     return completionTemplateCollection()->valveTemplateCollection();
 }
 
-//--------------------------------------------------------------------------------------------------
-///
-//--------------------------------------------------------------------------------------------------
-QString RimOilField::uniqueShortNameForCase( RimSummaryCase* summaryCase )
-{
-    std::set<QString> allAutoShortNames;
-
-    std::vector<RimSummaryCase*>         allCases          = summaryCaseMainCollection->allSummaryCases();
-    std::vector<RimObservedSummaryData*> observedDataCases = observedDataCollection->allObservedSummaryData();
-
-    for ( auto observedData : observedDataCases )
-    {
-        allCases.push_back( observedData );
-    }
-
-    for ( RimSummaryCase* sumCase : allCases )
-    {
-        if ( sumCase && sumCase != summaryCase )
-        {
-            allAutoShortNames.insert( sumCase->shortName() );
-        }
-    }
-
-    bool foundUnique = false;
-
-    QString caseName = summaryCase->caseName();
-    QString shortName;
-
-    if ( caseName.size() > 2 )
-    {
-        QString candidate;
-        candidate += caseName[0];
-
-        for ( int i = 1; i < caseName.size(); ++i )
-        {
-            if ( allAutoShortNames.count( candidate + caseName[i] ) == 0 )
-            {
-                shortName   = candidate + caseName[i];
-                foundUnique = true;
-                break;
-            }
-        }
-    }
-    else
-    {
-        shortName = caseName.left( 2 );
-        if ( allAutoShortNames.count( shortName ) == 0 )
-        {
-            foundUnique = true;
-        }
-    }
-
-    int autoNumber = 0;
-
-    while ( !foundUnique )
-    {
-        QString candidate = shortName + QString::number( autoNumber++ );
-        if ( allAutoShortNames.count( candidate ) == 0 )
-        {
-            shortName   = candidate;
-            foundUnique = true;
-        }
-    }
-
-    return shortName;
-}
-
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ProjectDataModel/RimOilField.h b/ApplicationCode/ProjectDataModel/RimOilField.h
index 758a4ff293..ac813a5d11 100644
--- a/ApplicationCode/ProjectDataModel/RimOilField.h
+++ b/ApplicationCode/ProjectDataModel/RimOilField.h
@@ -57,8 +57,6 @@ public:
     RimValveTemplateCollection*       valveTemplateCollection();
     const RimValveTemplateCollection* valveTemplateCollection() const;
 
-    QString uniqueShortNameForCase( RimSummaryCase* summaryCase );
-
     caf::PdmChildField<RimEclipseCaseCollection*>        analysisModels;
     caf::PdmChildField<RimGeoMechModels*>                geoMechModels;
     caf::PdmChildField<RimWellPathCollection*>           wellPathCollection;
diff --git a/ApplicationCode/ProjectDataModel/RimSummaryCalculationVariable.cpp b/ApplicationCode/ProjectDataModel/RimSummaryCalculationVariable.cpp
index 95cb5c3a5a..1c2c938946 100644
--- a/ApplicationCode/ProjectDataModel/RimSummaryCalculationVariable.cpp
+++ b/ApplicationCode/ProjectDataModel/RimSummaryCalculationVariable.cpp
@@ -132,7 +132,7 @@ void RimSummaryCalculationVariable::fieldChangedByUi( const caf::PdmFieldHandle*
 QString RimSummaryCalculationVariable::summaryAddressDisplayString() const
 {
     QString caseName;
-    if ( m_case() ) caseName = m_case()->caseName();
+    if ( m_case() ) caseName = m_case()->displayCaseName();
 
     return RiaSummaryCurveDefinition::curveDefinitionText( caseName, m_summaryAddress()->address() );
 }
diff --git a/ApplicationCode/ProjectDataModel/RimWellLogRftCurve.cpp b/ApplicationCode/ProjectDataModel/RimWellLogRftCurve.cpp
index c7d6512532..e17ccc546a 100644
--- a/ApplicationCode/ProjectDataModel/RimWellLogRftCurve.cpp
+++ b/ApplicationCode/ProjectDataModel/RimWellLogRftCurve.cpp
@@ -336,7 +336,7 @@ QString RimWellLogRftCurve::createCurveAutoName()
     }
     else if ( m_summaryCase )
     {
-        name.push_back( m_summaryCase->caseName() );
+        name.push_back( m_summaryCase->displayCaseName() );
     }
     else if ( m_observedFmuRftData )
     {
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimDerivedEnsembleCase.cpp b/ApplicationCode/ProjectDataModel/Summary/RimDerivedEnsembleCase.cpp
index db94682d70..b389a8816e 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimDerivedEnsembleCase.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimDerivedEnsembleCase.cpp
@@ -184,8 +184,8 @@ void RimDerivedEnsembleCase::calculate( const RifEclipseSummaryAddress& address
 //--------------------------------------------------------------------------------------------------
 QString RimDerivedEnsembleCase::caseName() const
 {
-    auto case1Name = m_summaryCase1->caseName();
-    auto case2Name = m_summaryCase2->caseName();
+    auto case1Name = m_summaryCase1->displayCaseName();
+    auto case2Name = m_summaryCase2->displayCaseName();
 
     if ( case1Name == case2Name )
         return case1Name;
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.cpp
index a7157ce15a..735939c00c 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.cpp
@@ -22,6 +22,7 @@
 #include "RifSummaryReaderInterface.h"
 
 #include "RimMainPlotCollection.h"
+#include "RimObservedDataCollection.h"
 #include "RimOilField.h"
 #include "RimProject.h"
 #include "RimSummaryCaseCollection.h"
@@ -30,6 +31,7 @@
 
 #include "cvfAssert.h"
 
+#include "RimObservedSummaryData.h"
 #include <QFileInfo>
 
 CAF_PDM_ABSTRACT_SOURCE_INIT( RimSummaryCase, "SummaryCase" );
@@ -178,6 +180,14 @@ RifReaderRftInterface* RimSummaryCase::rftReader()
     return nullptr;
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QString RimSummaryCase::errorMessagesFromReader()
+{
+    return QString();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -191,8 +201,8 @@ void RimSummaryCase::defineUiTreeOrdering( caf::PdmUiTreeOrdering& uiTreeOrderin
 //--------------------------------------------------------------------------------------------------
 void RimSummaryCase::updateTreeItemName()
 {
-    if ( caseName() != shortName() )
-        this->setUiName( caseName() + " (" + shortName() + ")" );
+    if ( caseName() != displayCaseName() )
+        this->setUiName( caseName() + " (" + displayCaseName() + ")" );
     else
         this->setUiName( caseName() );
 }
@@ -200,11 +210,19 @@ void RimSummaryCase::updateTreeItemName()
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-QString RimSummaryCase::shortName() const
+QString RimSummaryCase::displayCaseName() const
 {
     return m_shortName();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QString RimSummaryCase::nativeCaseName() const
+{
+    return caseName();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -226,6 +244,77 @@ void RimSummaryCase::initAfterRead()
     updateOptionSensitivity();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QString RimSummaryCase::uniqueShortNameForCase( RimSummaryCase* summaryCase )
+{
+    RimOilField* oilField = nullptr;
+    summaryCase->firstAncestorOrThisOfType( oilField );
+    CVF_ASSERT( oilField );
+
+    std::set<QString> allAutoShortNames;
+
+    std::vector<RimSummaryCase*>         allCases          = oilField->summaryCaseMainCollection->allSummaryCases();
+    std::vector<RimObservedSummaryData*> observedDataCases = oilField->observedDataCollection->allObservedSummaryData();
+
+    for ( auto observedData : observedDataCases )
+    {
+        allCases.push_back( observedData );
+    }
+
+    for ( RimSummaryCase* sumCase : allCases )
+    {
+        if ( sumCase && sumCase != summaryCase )
+        {
+            allAutoShortNames.insert( sumCase->displayCaseName() );
+        }
+    }
+
+    bool foundUnique = false;
+
+    QString caseName = summaryCase->caseName();
+    QString shortName;
+
+    if ( caseName.size() > 2 )
+    {
+        QString candidate;
+        candidate += caseName[0];
+
+        for ( int i = 1; i < caseName.size(); ++i )
+        {
+            if ( allAutoShortNames.count( candidate + caseName[i] ) == 0 )
+            {
+                shortName   = candidate + caseName[i];
+                foundUnique = true;
+                break;
+            }
+        }
+    }
+    else
+    {
+        shortName = caseName.left( 2 );
+        if ( allAutoShortNames.count( shortName ) == 0 )
+        {
+            foundUnique = true;
+        }
+    }
+
+    int autoNumber = 0;
+
+    while ( !foundUnique )
+    {
+        QString candidate = shortName + QString::number( autoNumber++ );
+        if ( allAutoShortNames.count( candidate ) == 0 )
+        {
+            shortName   = candidate;
+            foundUnique = true;
+        }
+    }
+
+    return shortName;
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -233,11 +322,7 @@ void RimSummaryCase::updateAutoShortName()
 {
     if ( m_useAutoShortName )
     {
-        RimOilField* oilField = nullptr;
-        this->firstAncestorOrThisOfType( oilField );
-        CVF_ASSERT( oilField );
-
-        m_shortName = oilField->uniqueShortNameForCase( this );
+        m_shortName = RimSummaryCase::uniqueShortNameForCase( this );
     }
     else if ( m_shortName() == DEFAULT_DISPLAY_NAME )
     {
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.h b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.h
index ed1d88a63c..c4afffb63d 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.h
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCase.h
@@ -45,8 +45,8 @@ public:
     ~RimSummaryCase() override;
 
     virtual QString summaryHeaderFilename() const;
-    virtual QString caseName() const = 0;
-    QString         shortName() const;
+    QString         displayCaseName() const;
+    QString         nativeCaseName() const;
 
     RiaEclipseUnitTools::UnitSystemType unitsSystem();
 
@@ -58,10 +58,7 @@ public:
     virtual void                       createRftReaderInterface() {}
     virtual RifSummaryReaderInterface* summaryReader() = 0;
     virtual RifReaderRftInterface*     rftReader();
-    virtual QString                    errorMessagesFromReader()
-    {
-        return QString();
-    }
+    virtual QString                    errorMessagesFromReader();
 
     virtual void updateFilePathsFromProjectPath( const QString& newProjectPath, const QString& oldProjectPath ) = 0;
 
@@ -83,6 +80,13 @@ protected:
     void defineUiTreeOrdering( caf::PdmUiTreeOrdering& uiTreeOrdering, QString uiConfigName = "" ) override;
     void updateTreeItemName();
 
+    virtual QString caseName() const = 0;
+
+private:
+    void           initAfterRead() override;
+    static QString uniqueShortNameForCase( RimSummaryCase* summaryCase );
+
+protected:
     caf::PdmField<QString>       m_shortName;
     caf::PdmField<bool>          m_useAutoShortName;
     caf::PdmField<caf::FilePath> m_summaryHeaderFilename;
@@ -91,7 +95,4 @@ protected:
     std::shared_ptr<RigCaseRealizationParameters> m_crlParameters;
 
     static const QString DEFAULT_DISPLAY_NAME;
-
-private:
-    void initAfterRead() override;
 };
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCaseMainCollection.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCaseMainCollection.cpp
index bbfa85ecb3..7534ad9de7 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCaseMainCollection.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCaseMainCollection.cpp
@@ -544,13 +544,13 @@ QString RimSummaryCaseMainCollection::uniqueShortNameForCase( RimSummaryCase* su
     {
         if ( sumCase && sumCase != summaryCase )
         {
-            allAutoShortNames.insert( sumCase->shortName() );
+            allAutoShortNames.insert( sumCase->displayCaseName() );
         }
     }
 
     bool foundUnique = false;
 
-    QString caseName = summaryCase->caseName();
+    QString caseName = summaryCase->nativeCaseName();
     QString shortName;
 
     if ( caseName.size() > 2 )
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurve.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurve.cpp
index b09f3e47cd..e3695c7adc 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurve.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurve.cpp
@@ -385,7 +385,7 @@ QList<caf::PdmOptionItemInfo> RimSummaryCurve::calculateValueOptions( const caf:
 
         for ( RimSummaryCase* rimCase : cases )
         {
-            options.push_back( caf::PdmOptionItemInfo( rimCase->caseName(), rimCase ) );
+            options.push_back( caf::PdmOptionItemInfo( rimCase->displayCaseName(), rimCase ) );
         }
 
         if ( options.size() > 0 )
@@ -794,12 +794,12 @@ QString RimSummaryCurve::curveExportDescription( const RifEclipseSummaryAddress&
     {
         return QString( "%1.%2.%3" )
             .arg( QString::fromStdString( addressUiText ) )
-            .arg( m_yValuesSummaryCase->caseName() )
+            .arg( m_yValuesSummaryCase->nativeCaseName() )
             .arg( group->name() );
     }
     else
     {
-        return QString( "%1.%2" ).arg( QString::fromStdString( addressUiText ) ).arg( m_yValuesSummaryCase->caseName() );
+        return QString( "%1.%2" ).arg( QString::fromStdString( addressUiText ) ).arg( m_yValuesSummaryCase->nativeCaseName() );
     }
 }
 
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurveAutoName.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurveAutoName.cpp
index 29d6fe4329..7cb64cd9df 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurveAutoName.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurveAutoName.cpp
@@ -79,7 +79,7 @@ QString RimSummaryCurveAutoName::curveNameY( const RifEclipseSummaryAddress& sum
     std::string caseNameY;
     if ( caseNameY.empty() && summaryCurve && summaryCurve->summaryCaseY() )
     {
-        caseNameY = summaryCurve->summaryCaseY()->caseName().toStdString();
+        caseNameY = summaryCurve->summaryCaseY()->displayCaseName().toStdString();
     }
 
     {
@@ -114,7 +114,7 @@ QString RimSummaryCurveAutoName::curveNameX( const RifEclipseSummaryAddress& sum
     std::string caseNameX;
     if ( caseNameX.empty() && summaryCurve && summaryCurve->summaryCaseX() )
     {
-        caseNameX = summaryCurve->summaryCaseX()->caseName().toStdString();
+        caseNameX = summaryCurve->summaryCaseX()->displayCaseName().toStdString();
     }
 
     {
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
index e8bca913fe..038939eb22 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
@@ -2107,7 +2107,7 @@ void populateSummaryCurvesData( std::vector<RimSummaryCurve*> curves, SummaryCur
         if ( isObservedCurve && ( curveType & CURVE_TYPE_OBSERVED ) == 0 ) continue;
         if ( !isObservedCurve && ( curveType & CURVE_TYPE_GRID ) == 0 ) continue;
 
-        QString curveCaseName = curve->summaryCaseY()->caseName();
+        QString curveCaseName = curve->summaryCaseY()->displayCaseName();
 
         size_t casePosInList = cvf::UNDEFINED_SIZE_T;
         for ( size_t i = 0; i < curvesData->caseNames.size(); i++ )
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp
index 569a60efff..2204133983 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp
@@ -504,7 +504,7 @@ void RimSummaryPlotFilterTextCurveSetEditor::appendOptionItemsForSources( QList<
                 // Top level cases
                 for ( const auto& sumCase : sumCaseMainColl->topLevelSummaryCases() )
                 {
-                    options.push_back( caf::PdmOptionItemInfo( sumCase->caseName(), sumCase ) );
+                    options.push_back( caf::PdmOptionItemInfo( sumCase->displayCaseName(), sumCase ) );
                 }
             }
 
@@ -539,7 +539,7 @@ void RimSummaryPlotFilterTextCurveSetEditor::appendOptionItemsForSources( QList<
 
                     for ( const auto& sumCase : sumCaseColl->allSummaryCases() )
                     {
-                        auto optionItem = caf::PdmOptionItemInfo( sumCase->caseName(), sumCase );
+                        auto optionItem = caf::PdmOptionItemInfo( sumCase->displayCaseName(), sumCase );
                         optionItem.setLevel( 1 );
                         options.push_back( optionItem );
                     }
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotNameHelper.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotNameHelper.cpp
index d69b55fe01..f716ab2ddb 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotNameHelper.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotNameHelper.cpp
@@ -293,7 +293,7 @@ void RimSummaryPlotNameHelper::extractPlotTitleSubStrings()
 
         if ( summaryCase )
         {
-            m_titleCaseName = summaryCase->shortName();
+            m_titleCaseName = summaryCase->displayCaseName();
         }
     }
     else if ( ensembleCases.size() == 1 && summaryCases.empty() )
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotSourceStepping.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotSourceStepping.cpp
index 3b14fc4faf..28a68d1367 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotSourceStepping.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotSourceStepping.cpp
@@ -193,7 +193,7 @@ QList<caf::PdmOptionItemInfo>
         auto summaryCases = RimSummaryPlotSourceStepping::summaryCasesForSourceStepping();
         for ( auto sumCase : summaryCases )
         {
-            options.append( caf::PdmOptionItemInfo( sumCase->caseName(), sumCase ) );
+            options.append( caf::PdmOptionItemInfo( sumCase->displayCaseName(), sumCase ) );
         }
 
         return options;
diff --git a/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp b/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp
index 64774485c0..3eed985d97 100644
--- a/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp
+++ b/ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp
@@ -1333,7 +1333,7 @@ void RiuSummaryCurveDefSelection::appendOptionItemsForSources( QList<caf::PdmOpt
                 // Top level cases
                 for ( const auto& sumCase : sumCaseMainColl->topLevelSummaryCases() )
                 {
-                    options.push_back( caf::PdmOptionItemInfo( sumCase->caseName(), sumCase ) );
+                    options.push_back( caf::PdmOptionItemInfo( sumCase->displayCaseName(), sumCase ) );
                 }
             }
 
@@ -1368,7 +1368,7 @@ void RiuSummaryCurveDefSelection::appendOptionItemsForSources( QList<caf::PdmOpt
 
                     for ( const auto& sumCase : sumCaseColl->allSummaryCases() )
                     {
-                        auto optionItem = caf::PdmOptionItemInfo( sumCase->caseName(), sumCase );
+                        auto optionItem = caf::PdmOptionItemInfo( sumCase->displayCaseName(), sumCase );
                         optionItem.setLevel( 1 );
                         options.push_back( optionItem );
                     }
diff --git a/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp b/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
index ab533a482a..1b85fccc9f 100644
--- a/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
+++ b/ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
@@ -84,7 +84,7 @@ public:
             sumCurve = dynamic_cast<RimSummaryCurve*>( riuCurve->ownerRimCurve() );
         }
 
-        return sumCurve && sumCurve->summaryCaseY() ? sumCurve->summaryCaseY()->caseName() : "";
+        return sumCurve && sumCurve->summaryCaseY() ? sumCurve->summaryCaseY()->displayCaseName() : "";
     }
 };
 static EnsembleCurveInfoTextProvider ensembleCurveInfoTextProvider;