diff --git a/ApplicationCode/ProjectDataModel/Rim3dOverlayInfoConfig.cpp b/ApplicationCode/ProjectDataModel/Rim3dOverlayInfoConfig.cpp
index a44cee7f38..bfcc9f2c3a 100644
--- a/ApplicationCode/ProjectDataModel/Rim3dOverlayInfoConfig.cpp
+++ b/ApplicationCode/ProjectDataModel/Rim3dOverlayInfoConfig.cpp
@@ -216,7 +216,6 @@ Rim3dOverlayInfoConfig::HistogramData Rim3dOverlayInfoConfig::histogramData(RimE
 
             if (scalarIndex != cvf::UNDEFINED_SIZE_T)
             {
-
                 if (m_statisticsCellRange == ALL_CELLS)
                 {
                     if (m_statisticsTimeRange == ALL_TIMESTEPS)
@@ -239,6 +238,8 @@ Rim3dOverlayInfoConfig::HistogramData Rim3dOverlayInfoConfig::histogramData(RimE
                         eclipseView->currentGridCellResults()->p10p90CellScalarValues(scalarIndex, currentTimeStep, histData.p10, histData.p90);
                         eclipseView->currentGridCellResults()->meanCellScalarValues(scalarIndex, currentTimeStep, histData.mean);
                         eclipseView->currentGridCellResults()->sumCellScalarValues(scalarIndex, currentTimeStep, histData.sum);
+                        eclipseView->currentGridCellResults()->mobileVolumeWeightedMean(scalarIndex, currentTimeStep, histData.weightedMean);
+
                         histData.histogram = &(eclipseView->currentGridCellResults()->cellScalarValuesHistogram(scalarIndex, currentTimeStep));
                     }
                     else
diff --git a/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.cpp b/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.cpp
index c47248108b..3f2daabf3e 100644
--- a/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.cpp
@@ -165,6 +165,14 @@ void RigCaseCellResultsData::sumCellScalarValues(size_t scalarResultIndex, size_
     m_statisticsDataCache[scalarResultIndex]->sumCellScalarValues(timeStepIndex, sumValue);
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RigCaseCellResultsData::mobileVolumeWeightedMean(size_t scalarResultIndex, size_t timeStepIndex, double& meanValue)
+{
+    m_statisticsDataCache[scalarResultIndex]->mobileVolumeWeightedMean(timeStepIndex, meanValue);
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.h b/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.h
index 859604c8ed..e7105faaa7 100644
--- a/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.h
+++ b/ApplicationCode/ReservoirDataModel/RigCaseCellResultsData.h
@@ -69,7 +69,7 @@ public:
     const std::vector<int>&                            uniqueCellScalarValues(size_t scalarResultIndex);
     void                                               sumCellScalarValues(size_t scalarResultIndex, double& sumValue);
     void                                               sumCellScalarValues(size_t scalarResultIndex, size_t timeStepIndex, double& sumValue);
-
+    void                                               mobileVolumeWeightedMean(size_t scalarResultIndex, size_t timeStepIndex, double& meanValue);
     // Access meta-information about the results
     size_t                                             resultCount() const;
     size_t                                             timeStepCount(size_t scalarResultIndex) const; 
diff --git a/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.cpp b/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.cpp
index 97e86bdfa2..3c5e077e04 100644
--- a/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.cpp
@@ -22,6 +22,7 @@
 #include "RigStatisticsMath.h"
 #include "RigCaseCellResultsData.h"
 #include "RigStatisticsMath.h"
+#include "RigWeightedMeanCalc.h"
 
 #include <cmath> // Needed for HUGE_VAL on Linux
 
@@ -94,3 +95,18 @@ size_t RigEclipseNativeStatCalc::timeStepCount()
 {
     return m_resultsData->timeStepCount(m_scalarResultIndex);
 }
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RigEclipseNativeStatCalc::mobileVolumeWeightedMean(size_t timeStepIndex, double& mean)
+{
+    size_t mobPVResultIndex = m_resultsData->findOrLoadScalarResult(RiaDefines::ResultCatType::STATIC_NATIVE, RiaDefines::mobilePoreVolumeName());
+
+    const std::vector<double>& weights = m_resultsData->cellScalarResults(mobPVResultIndex, 0);
+    const std::vector<double>& values = m_resultsData->cellScalarResults(m_scalarResultIndex, timeStepIndex);
+
+    const RigActiveCellInfo* actCellInfo = m_resultsData->activeCellInfo();
+
+    RigWeightedMeanCalc::weightedMeanOverCells(&weights, &values, nullptr, false, actCellInfo, m_resultsData->isUsingGlobalActiveIndex(m_scalarResultIndex), &mean);
+}
diff --git a/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.h b/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.h
index 26d82198d6..059b5c41e7 100644
--- a/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.h
+++ b/ApplicationCode/ReservoirDataModel/RigEclipseNativeStatCalc.h
@@ -41,6 +41,7 @@ public:
     virtual void    addDataToHistogramCalculator(size_t timeStepIndex, RigHistogramCalculator& histogramCalculator);
     virtual void    uniqueValues(size_t timeStepIndex, std::set<int>& values);
     virtual size_t  timeStepCount();
+    virtual void    mobileVolumeWeightedMean(size_t timeStepIndex, double& mean);
 
 private:
     RigCaseCellResultsData* m_resultsData;