diff --git a/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.cpp b/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.cpp
index 73ec288923..aa068a1d4d 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.cpp
@@ -235,3 +235,24 @@ bool RimAsciiDataCurve::curveData(std::vector<QDateTime>* timeSteps, std::vector
     return true;
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RimAsciiDataCurve::fieldChangedByUi(const caf::PdmFieldHandle * changedField, const QVariant & oldValue, const QVariant & newValue)
+{
+    RimPlotCurve::fieldChangedByUi(changedField, oldValue, newValue);
+
+    RimSummaryPlot* plot = nullptr;
+    firstAncestorOrThisOfTypeAsserted(plot);
+
+    if (changedField == &m_plotAxis)
+    {
+        updateQwtPlotAxis();
+        plot->updateAxes();
+    }
+    if (changedField == &m_showCurve)
+    {
+        plot->updateAxes();
+    }
+}
+
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.h b/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.h
index e68d5c322c..9685582d34 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.h
+++ b/ApplicationCode/ProjectDataModel/Summary/RimAsciiDataCurve.h
@@ -72,6 +72,8 @@ protected:
 private:
     bool                                    curveData(std::vector<QDateTime>* timeSteps, std::vector<double>* values) const;
 
+    virtual void                            fieldChangedByUi(const caf::PdmFieldHandle* changedField, const QVariant& oldValue, const QVariant& newValue) override;
+
 private:
     // Fields
     caf::PdmField< caf::AppEnum< RiaDefines::PlotAxis > > m_plotAxis;
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.cpp
index fab8dc33ec..046913a3f9 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.cpp
@@ -24,6 +24,7 @@
 #include "RimSummaryCurve.h"
 #include "RimSummaryCurveFilter.h"
 #include "RimSummaryYAxisProperties.h"
+#include "RimAsciiDataCurve.h"
 
 #include "RiuSummaryQwtPlot.h"
 
@@ -98,10 +99,12 @@ public:
 /// 
 //--------------------------------------------------------------------------------------------------
 RimSummaryPlotYAxisFormatter::RimSummaryPlotYAxisFormatter(RimSummaryYAxisProperties* axisProperties,
-    const std::vector<RimSummaryCurve*>& curves,
+    const std::vector<RimSummaryCurve*>& summaryCurves,
+    const std::vector<RimAsciiDataCurve*>& asciiCurves,
     const std::set<QString>& timeHistoryCurveQuantities)
 :   m_axisProperties(axisProperties),
-    m_singleCurves(curves),
+    m_summaryCurves(summaryCurves),
+    m_asciiDataCurves(asciiCurves),
     m_timeHistoryCurveQuantities(timeHistoryCurveQuantities)
 {
 }
@@ -193,7 +196,7 @@ QString RimSummaryPlotYAxisFormatter::autoAxisTitle() const
 {
     std::map<std::string, std::set<std::string> > unitToQuantityNameMap;
 
-    for ( RimSummaryCurve* rimCurve : m_singleCurves )
+    for ( RimSummaryCurve* rimCurve : m_summaryCurves )
     {
         if ( rimCurve->yAxis() == this->m_axisProperties->plotAxisType() )
         {
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.h b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.h
index 9b013535fc..2f23e45b1a 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.h
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryCurvesCalculator.h
@@ -22,6 +22,7 @@
 #include <vector>
 #include <set>
 
+class RimAsciiDataCurve;
 class RimSummaryCurve;
 class RimSummaryCurveFilter;
 class RimSummaryYAxisProperties;
@@ -34,7 +35,8 @@ class RimSummaryPlotYAxisFormatter
 {
 public:
     RimSummaryPlotYAxisFormatter(RimSummaryYAxisProperties* axisProperties,
-        const std::vector<RimSummaryCurve*>& curves,
+        const std::vector<RimSummaryCurve*>& summaryCurves,
+        const std::vector<RimAsciiDataCurve*>& asciiCurves,
         const std::set<QString>& timeHistoryCurveQuantities);
 
     void    applyYAxisPropertiesToPlot(RiuSummaryQwtPlot* qwtPlot);
@@ -43,9 +45,10 @@ private:
     QString autoAxisTitle() const;
 
 private:
-    RimSummaryYAxisProperties*          m_axisProperties;
-    const std::vector<RimSummaryCurve*> m_singleCurves;
-    const std::set<QString>             m_timeHistoryCurveQuantities;
+    RimSummaryYAxisProperties*            m_axisProperties;
+    const std::vector<RimSummaryCurve*>   m_summaryCurves;
+    const std::vector<RimAsciiDataCurve*> m_asciiDataCurves;
+    const std::set<QString>               m_timeHistoryCurveQuantities;
 };
 
 
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
index 60c2af681a..39fc4b8fe9 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
@@ -457,7 +457,10 @@ void RimSummaryPlot::updateAxis(RiaDefines::PlotAxis plotAxis)
             timeHistoryQuantities.insert(c->quantityName());
         }
 
-        RimSummaryPlotYAxisFormatter calc(yAxisProperties, visibleSummaryCurvesForAxis(plotAxis), timeHistoryQuantities);
+        RimSummaryPlotYAxisFormatter calc(yAxisProperties,
+                                          visibleSummaryCurvesForAxis(plotAxis),
+                                          visibleAsciiDataCurvesForAxis(plotAxis),
+                                          timeHistoryQuantities);
         calc.applyYAxisPropertiesToPlot(m_qwtPlot);
     }
     else
@@ -492,6 +495,13 @@ void RimSummaryPlot::updateZoomForAxis(RiaDefines::PlotAxis plotAxis)
             plotCurves.push_back(c->qwtPlotCurve());
         }
 
+        for (RimAsciiDataCurve* c : visibleAsciiDataCurvesForAxis(plotAxis))
+        {
+            std::vector<double> curveValues = c->yValues();
+            yValues.insert(yValues.end(), curveValues.begin(), curveValues.end());
+            plotCurves.push_back(c->qwtPlotCurve());
+        }
+
         double min, max;
         RimSummaryPlotYAxisRangeCalculator calc(plotCurves, yValues);
         calc.computeYRange(&min, &max);
@@ -551,6 +561,11 @@ bool RimSummaryPlot::hasVisibleCurvesForAxis(RiaDefines::PlotAxis plotAxis) cons
         return true;
     }
 
+    if (visibleAsciiDataCurvesForAxis(plotAxis).size() > 0)
+    {
+        return true;
+    }
+
     return false;
 }
 
@@ -593,6 +608,24 @@ std::vector<RimGridTimeHistoryCurve*> RimSummaryPlot::visibleTimeHistoryCurvesFo
     return curves;
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+std::vector<RimAsciiDataCurve*> RimSummaryPlot::visibleAsciiDataCurvesForAxis(RiaDefines::PlotAxis plotAxis) const
+{
+    std::vector<RimAsciiDataCurve*> curves;
+
+    for (auto c : m_asciiDataCurves)
+    {
+        if (c->isCurveVisible() && c->yAxis() == plotAxis)
+        {
+            curves.push_back(c);
+        }
+    }
+
+    return curves;
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.h b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.h
index 2137efb8a1..29b5ef4df2 100644
--- a/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.h
+++ b/ApplicationCode/ProjectDataModel/Summary/RimSummaryPlot.h
@@ -105,6 +105,7 @@ protected:
 private:
     std::vector<RimSummaryCurve*>                   visibleSummaryCurvesForAxis(RiaDefines::PlotAxis plotAxis) const;
     std::vector<RimGridTimeHistoryCurve*>           visibleTimeHistoryCurvesForAxis(RiaDefines::PlotAxis plotAxis) const;
+    std::vector<RimAsciiDataCurve*>                 visibleAsciiDataCurvesForAxis(RiaDefines::PlotAxis plotAxis) const;
     bool                                            hasVisibleCurvesForAxis(RiaDefines::PlotAxis plotAxis) const;
 
     RimSummaryYAxisProperties*                      yAxisPropertiesForAxis(RiaDefines::PlotAxis plotAxis) const;