diff --git a/ApplicationCode/FileInterface/RifEclipseOutputFileTools.cpp b/ApplicationCode/FileInterface/RifEclipseOutputFileTools.cpp
index a562932270..34d0e597c3 100644
--- a/ApplicationCode/FileInterface/RifEclipseOutputFileTools.cpp
+++ b/ApplicationCode/FileInterface/RifEclipseOutputFileTools.cpp
@@ -371,6 +371,18 @@ cvf::ref<RifEclipseRestartDataAccess> RifEclipseOutputFileTools::createDynamicRe
     return resultsAccess;
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+QString RifEclipseOutputFileTools::createIndexFileName(const QString& resultFileName)
+{
+    QFileInfo fi(resultFileName);
+
+    QString indexFileName = fi.path() + "/" + fi.completeBaseName() + ".RESINSIGHT_IDX";
+
+    return indexFileName;
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/FileInterface/RifEclipseOutputFileTools.h b/ApplicationCode/FileInterface/RifEclipseOutputFileTools.h
index cafb60a05f..eb05876902 100644
--- a/ApplicationCode/FileInterface/RifEclipseOutputFileTools.h
+++ b/ApplicationCode/FileInterface/RifEclipseOutputFileTools.h
@@ -67,6 +67,7 @@ public:
 
     static cvf::ref<RifEclipseRestartDataAccess> createDynamicResultAccess(const QString& fileName);
 
+    static QString      createIndexFileName(const QString& resultFileName);
 
 private:
     static void         createReportStepsMetaData(std::vector<ecl_file_type*> ecl_files, std::vector<RifRestartReportStep>* reportSteps);