diff --git a/ApplicationCode/Application/CMakeLists_files.cmake b/ApplicationCode/Application/CMakeLists_files.cmake
index 08afb25286..e248cc1d8d 100644
--- a/ApplicationCode/Application/CMakeLists_files.cmake
+++ b/ApplicationCode/Application/CMakeLists_files.cmake
@@ -17,6 +17,7 @@ ${CMAKE_CURRENT_LIST_DIR}/RiaMemoryCleanup.h
 ${CMAKE_CURRENT_LIST_DIR}/RiaFontCache.h
 ${CMAKE_CURRENT_LIST_DIR}/RiaEclipseFileNameTools.h
 ${CMAKE_CURRENT_LIST_DIR}/RiaFeatureCommandContext.h
+${CMAKE_CURRENT_LIST_DIR}/RiaStringListSerializer.h
 )
 
 set (SOURCE_GROUP_SOURCE_FILES
@@ -38,6 +39,7 @@ ${CMAKE_CURRENT_LIST_DIR}/RiaMemoryCleanup.cpp
 ${CMAKE_CURRENT_LIST_DIR}/RiaFontCache.cpp
 ${CMAKE_CURRENT_LIST_DIR}/RiaEclipseFileNameTools.cpp
 ${CMAKE_CURRENT_LIST_DIR}/RiaFeatureCommandContext.cpp
+${CMAKE_CURRENT_LIST_DIR}/RiaStringListSerializer.cpp
 )
 
 list(APPEND CODE_HEADER_FILES
diff --git a/ApplicationCode/Application/RiaStringListSerializer.cpp b/ApplicationCode/Application/RiaStringListSerializer.cpp
new file mode 100644
index 0000000000..6e0cb9f3a9
--- /dev/null
+++ b/ApplicationCode/Application/RiaStringListSerializer.cpp
@@ -0,0 +1,69 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2019-     Equinor ASA
+//
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#include "RiaStringListSerializer.h"
+
+#include <QSettings>
+#include <QStringList>
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+RiaStringListSerializer::RiaStringListSerializer( const QString& key )
+    : m_key( key )
+{
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RiaStringListSerializer::addString( const QString& textString, int maxStringCount )
+{
+    QSettings   settings;
+    QStringList stringList = settings.value( m_key ).toStringList();
+
+    stringList.removeAll( textString );
+    stringList.prepend( textString );
+    while ( stringList.size() > maxStringCount )
+        stringList.removeLast();
+
+    settings.setValue( m_key, stringList );
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RiaStringListSerializer::removeString( const QString& textString )
+{
+    QSettings   settings;
+    QStringList files = settings.value( m_key ).toStringList();
+    files.removeAll( textString );
+
+    settings.setValue( m_key, files );
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QStringList RiaStringListSerializer::textStrings()
+{
+    QSettings   settings;
+    QStringList stringList = settings.value( m_key ).toStringList();
+
+    return stringList;
+}
diff --git a/ApplicationCode/Application/RiaStringListSerializer.h b/ApplicationCode/Application/RiaStringListSerializer.h
new file mode 100644
index 0000000000..4db179c458
--- /dev/null
+++ b/ApplicationCode/Application/RiaStringListSerializer.h
@@ -0,0 +1,40 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2019-     Equinor ASA
+//
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include <QString>
+
+class QStringList;
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+class RiaStringListSerializer
+{
+public:
+    RiaStringListSerializer( const QString& key );
+
+    void addString( const QString& textString, int maxStringCount );
+    void removeString( const QString& textString );
+
+    QStringList textStrings();
+
+private:
+    QString m_key;
+};
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp
index 8aba5de9da..89f31c11b7 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.cpp
@@ -21,6 +21,7 @@
 #include "RiaApplication.h"
 #include "RiaGuiApplication.h"
 #include "RiaLogging.h"
+#include "RiaStringListSerializer.h"
 #include "RiaSummaryCurveDefinition.h"
 
 #include "RifSummaryReaderInterface.h"
@@ -384,14 +385,10 @@ void RimSummaryPlotFilterTextCurveSetEditor::fieldChangedByUi( const caf::PdmFie
         m_curveFilterText = curveFilterTextWithoutOutdatedLabel();
 
         {
-            if ( m_historyItems.indexOf( m_curveFilterText ) == -1 )
-            {
-                m_historyItems.push_front( m_curveFilterText );
-                while ( m_historyItems.size() > 10 )
-                {
-                    m_historyItems.pop_back();
-                }
-            }
+            RiaStringListSerializer stringListSerializer( curveFilterRecentlyUsedRegistryKey() );
+
+            int maxItemCount = 10;
+            stringListSerializer.addString( m_curveFilterText, maxItemCount );
         }
 
         m_curveFilterText.uiCapability()->updateConnectedEditors();
@@ -485,7 +482,9 @@ QList<caf::PdmOptionItemInfo>
 
     if ( fieldNeedingOptions == &m_curveFilterText )
     {
-        for ( const auto& s : m_historyItems )
+        RiaStringListSerializer stringListSerializer( curveFilterRecentlyUsedRegistryKey() );
+
+        for ( const auto& s : stringListSerializer.textStrings() )
         {
             options.push_back( caf::PdmOptionItemInfo( s, s ) );
         }
@@ -607,3 +606,11 @@ QString RimSummaryPlotFilterTextCurveSetEditor::curveFilterTextWithoutOutdatedLa
 
     return filterText;
 }
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QString RimSummaryPlotFilterTextCurveSetEditor::curveFilterRecentlyUsedRegistryKey()
+{
+    return "curveFilterRecentlyUsedStrings";
+}
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.h b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.h
index 33ffe8ed64..21aa84ee16 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.h
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlotFilterTextCurveSetEditor.h
@@ -57,11 +57,13 @@ private:
     std::vector<SummarySource*> selectedSummarySources() const;
     QString                     curveFilterTextWithoutOutdatedLabel() const;
 
+    static QString curveFilterRecentlyUsedRegistryKey();
+
+private:
     caf::PdmPtrArrayField<SummarySource*> m_selectedSources;
 
     caf::PdmField<QString> m_curveFilterLabelText;
     caf::PdmField<QString> m_curveFilterText;
-    QStringList            m_historyItems;
 
     bool m_isFieldRecentlyChangedFromGui;
 };