diff --git a/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.cpp b/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.cpp
index 63b9bfa38e..e70a6a0d36 100644
--- a/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.cpp
+++ b/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.cpp
@@ -35,7 +35,6 @@ RifCaseRealizationReader::RifCaseRealizationReader( const QString& fileName )
 {
     m_parameters = std::shared_ptr<RigCaseRealizationParameters>( new RigCaseRealizationParameters() );
     m_fileName   = fileName;
-    m_file       = nullptr;
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -43,7 +42,6 @@ RifCaseRealizationReader::RifCaseRealizationReader( const QString& fileName )
 //--------------------------------------------------------------------------------------------------
 RifCaseRealizationReader::~RifCaseRealizationReader()
 {
-    closeFile();
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -72,36 +70,6 @@ std::shared_ptr<RifCaseRealizationReader> RifCaseRealizationReader::createReader
     return reader;
 }
 
-//--------------------------------------------------------------------------------------------------
-///
-//--------------------------------------------------------------------------------------------------
-QFile* RifCaseRealizationReader::openFile()
-{
-    if ( !m_file )
-    {
-        m_file = new QFile( m_fileName );
-        if ( !m_file->open( QIODevice::ReadOnly | QIODevice::Text ) )
-        {
-            closeFile();
-            throw FileParseException( QString( "Failed to open %1" ).arg( m_fileName ) );
-        }
-    }
-    return m_file;
-}
-
-//--------------------------------------------------------------------------------------------------
-///
-//--------------------------------------------------------------------------------------------------
-void RifCaseRealizationReader::closeFile()
-{
-    if ( m_file )
-    {
-        m_file->close();
-        delete m_file;
-        m_file = nullptr;
-    }
-}
-
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -124,7 +92,6 @@ QString RifCaseRealizationReader::runSpecificationFileName()
 RifCaseRealizationParametersReader::RifCaseRealizationParametersReader( const QString& fileName )
     : RifCaseRealizationReader( fileName )
 {
-    m_textStream = nullptr;
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -132,10 +99,6 @@ RifCaseRealizationParametersReader::RifCaseRealizationParametersReader( const QS
 //--------------------------------------------------------------------------------------------------
 RifCaseRealizationParametersReader::~RifCaseRealizationParametersReader()
 {
-    if ( m_textStream )
-    {
-        delete m_textStream;
-    }
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -143,55 +106,48 @@ RifCaseRealizationParametersReader::~RifCaseRealizationParametersReader()
 //--------------------------------------------------------------------------------------------------
 void RifCaseRealizationParametersReader::parse()
 {
-    int          lineNo     = 0;
-    QTextStream* dataStream = openDataStream();
+    QFile file( m_fileName );
+    if ( !file.open( QIODevice::ReadOnly | QIODevice::Text ) ) return;
 
+    QTextStream dataStream( &file );
+
+    int         lineNo = 0;
     QStringList errors;
 
-    try
+    while ( !dataStream.atEnd() )
     {
-        while ( !dataStream->atEnd() )
+        QString line = dataStream.readLine();
+
+        lineNo++;
+        QStringList cols = RifFileParseTools::splitLineAndTrim( line, QRegExp( "[ \t]" ), true );
+
+        if ( cols.size() != 2 )
         {
-            QString line = dataStream->readLine();
+            errors << QString( "RifEnsembleParametersReader: Invalid file format in line %1" ).arg( lineNo );
 
-            lineNo++;
-            QStringList cols = RifFileParseTools::splitLineAndTrim( line, QRegExp( "[ \t]" ), true );
+            continue;
+        }
 
-            if ( cols.size() != 2 )
+        QString& name     = cols[0];
+        QString& strValue = cols[1];
+
+        if ( RiaStdStringTools::isNumber( strValue.toStdString(), QLocale::c().decimalPoint().toLatin1() ) )
+        {
+            bool   parseOk = true;
+            double value   = QLocale::c().toDouble( strValue, &parseOk );
+            if ( parseOk )
             {
-                errors << QString( "RifEnsembleParametersReader: Invalid file format in line %1" ).arg( lineNo );
-
-                continue;
-            }
-
-            QString& name     = cols[0];
-            QString& strValue = cols[1];
-
-            if ( RiaStdStringTools::isNumber( strValue.toStdString(), QLocale::c().decimalPoint().toLatin1() ) )
-            {
-                bool   parseOk = true;
-                double value   = QLocale::c().toDouble( strValue, &parseOk );
-                if ( parseOk )
-                {
-                    m_parameters->addParameter( name, value );
-                }
-                else
-                {
-                    errors << QString( "RifEnsembleParametersReader: Invalid number format in line %1" ).arg( lineNo );
-                }
+                m_parameters->addParameter( name, value );
             }
             else
             {
-                m_parameters->addParameter( name, strValue );
+                errors << QString( "RifEnsembleParametersReader: Invalid number format in line %1" ).arg( lineNo );
             }
         }
-
-        closeDataStream();
-    }
-    catch ( ... )
-    {
-        closeDataStream();
-        throw;
+        else
+        {
+            m_parameters->addParameter( name, strValue );
+        }
     }
 
     for ( const auto& s : errors )
@@ -200,30 +156,6 @@ void RifCaseRealizationParametersReader::parse()
     }
 }
 
-//--------------------------------------------------------------------------------------------------
-///
-//--------------------------------------------------------------------------------------------------
-QTextStream* RifCaseRealizationParametersReader::openDataStream()
-{
-    auto file = openFile();
-
-    m_textStream = new QTextStream( file );
-    return m_textStream;
-}
-
-//--------------------------------------------------------------------------------------------------
-///
-//--------------------------------------------------------------------------------------------------
-void RifCaseRealizationParametersReader::closeDataStream()
-{
-    if ( m_textStream )
-    {
-        delete m_textStream;
-        m_textStream = nullptr;
-    }
-    closeFile();
-}
-
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -244,8 +176,10 @@ RifCaseRealizationRunspecificationReader::~RifCaseRealizationRunspecificationRea
 //--------------------------------------------------------------------------------------------------
 void RifCaseRealizationRunspecificationReader::parse()
 {
-    auto             file = openFile();
-    QXmlStreamReader xml( file );
+    QFile file( m_fileName );
+    if ( !file.open( QIODevice::ReadOnly | QIODevice::Text ) ) return;
+
+    QXmlStreamReader xml( &file );
 
     QStringList errors;
 
@@ -303,8 +237,6 @@ void RifCaseRealizationRunspecificationReader::parse()
         }
     }
 
-    closeFile();
-
     for ( const auto& s : errors )
     {
         RiaLogging::warning( s );
diff --git a/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.h b/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.h
index c40158dc73..4e40c3066e 100644
--- a/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.h
+++ b/ApplicationCode/FileInterface/RifCaseRealizationParametersReader.h
@@ -56,14 +56,9 @@ public:
     static QString runSpecificationFileName();
 
 protected:
-    QFile* openFile();
-    void   closeFile();
-
     std::shared_ptr<RigCaseRealizationParameters> m_parameters;
 
-private:
     QString m_fileName;
-    QFile*  m_file;
 };
 
 //==================================================================================================
@@ -77,13 +72,6 @@ public:
     ~RifCaseRealizationParametersReader() override;
 
     void parse() override;
-
-private:
-    QTextStream* openDataStream();
-    void         closeDataStream();
-
-private:
-    QTextStream* m_textStream;
 };
 
 //==================================================================================================