diff --git a/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.cpp b/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.cpp
index 9804784b4e..49e8ee02c4 100644
--- a/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.cpp
+++ b/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.cpp
@@ -36,18 +36,36 @@ RimRegularGridCase::RimRegularGridCase()
 
     CAF_PDM_InitFieldNoDefault( &m_maximum, "Maximum", "Maximum" );
     m_maximum.uiCapability()->setUiReadOnly( true );
+
+    CAF_PDM_InitField( &m_cellCountI, "CellCountI", 100, "Cell Count I" );
+    m_cellCountI.uiCapability()->setUiReadOnly( true );
+
+    CAF_PDM_InitField( &m_cellCountJ, "CellCountJ", 100, "Cell Count J" );
+    m_cellCountJ.uiCapability()->setUiReadOnly( true );
+
+    CAF_PDM_InitField( &m_cellCountK, "CellCountK", 10, "Cell Count K" );
+    m_cellCountK.uiCapability()->setUiReadOnly( true );
 }
 
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-
 void RimRegularGridCase::setBoundingBox( const cvf::BoundingBox& boundingBox )
 {
     m_minimum = boundingBox.min();
     m_maximum = boundingBox.max();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimRegularGridCase::setCellCount( const cvf::Vec3st& cellCount )
+{
+    m_cellCountI = cellCount.x();
+    m_cellCountJ = cellCount.y();
+    m_cellCountK = cellCount.z();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -58,7 +76,7 @@ cvf::ref<RifReaderInterface> RimRegularGridCase::createModel( QString modelName
 
     reader->setWorldCoordinates( m_minimum, m_maximum );
 
-    cvf::Vec3st gridPointDimensions( 50, 50, 10 );
+    cvf::Vec3st gridPointDimensions( m_cellCountI, m_cellCountJ, m_cellCountK );
     reader->setGridPointDimensions( gridPointDimensions );
 
     reader->open( "", reservoir.p() );
diff --git a/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.h b/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.h
index 898c388bf0..136491e4a6 100644
--- a/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.h
+++ b/ApplicationLibCode/ProjectDataModel/RimRegularGridCase.h
@@ -39,6 +39,8 @@ class RimRegularGridCase : public RimEclipseResultCase
 
     void setBoundingBox( const cvf::BoundingBox& boundingBox );
 
+    void setCellCount( const cvf::Vec3st& cellCount );
+
     bool openEclipseGridFile() override;
 
     cvf::ref<RifReaderInterface> createModel( QString modelName );
@@ -46,4 +48,8 @@ class RimRegularGridCase : public RimEclipseResultCase
 private:
     caf::PdmField<cvf::Vec3d> m_minimum;
     caf::PdmField<cvf::Vec3d> m_maximum;
+
+    caf::PdmField<int> m_cellCountI;
+    caf::PdmField<int> m_cellCountJ;
+    caf::PdmField<int> m_cellCountK;
 };
diff --git a/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.cpp b/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.cpp
index 4a76a37d62..f3ab525395 100644
--- a/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.cpp
+++ b/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.cpp
@@ -116,6 +116,10 @@ RimWellTargetCandidatesGenerator::RimWellTargetCandidatesGenerator()
     m_resultDefinition->setResultType( RiaDefines::ResultCatType::DYNAMIC_NATIVE );
     m_resultDefinition->setResultVariable( "SOIL" );
 
+    CAF_PDM_InitField( &m_cellCountI, "CellCountI", 100, "Cell Count I" );
+    CAF_PDM_InitField( &m_cellCountJ, "CellCountJ", 100, "Cell Count J" );
+    CAF_PDM_InitField( &m_cellCountK, "CellCountK", 10, "Cell Count K" );
+
     CAF_PDM_InitField( &m_generateEnsembleStatistics, "GenerateEnsembleStatistics", true, "Generate Ensemble Statistics" );
     caf::PdmUiPushButtonEditor::configureEditorLabelHidden( &m_generateEnsembleStatistics );
 
@@ -287,6 +291,14 @@ void RimWellTargetCandidatesGenerator::defineEditorAttribute( const caf::PdmFiel
     }
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+cvf::Vec3st RimWellTargetCandidatesGenerator::getResultGridCellCount() const
+{
+    return cvf::Vec3st( m_cellCountI, m_cellCountJ, m_cellCountK );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -304,9 +316,11 @@ void RimWellTargetCandidatesGenerator::generateEnsembleStatistics()
     auto ensemble = firstAncestorOrThisOfType<RimEclipseCaseEnsemble>();
     if ( !ensemble ) return;
 
-    RigWellTargetCandidatesGenerator::ClusteringLimits limits = getClusteringLimits();
-    RimRegularGridCase* regularGridCase                       = RigWellTargetCandidatesGenerator::generateEnsembleCandidates( *ensemble,
+    const cvf::Vec3st&                                 resultGridCellCount = getResultGridCellCount();
+    RigWellTargetCandidatesGenerator::ClusteringLimits limits              = getClusteringLimits();
+    RimRegularGridCase* regularGridCase = RigWellTargetCandidatesGenerator::generateEnsembleCandidates( *ensemble,
                                                                                                         m_timeStep(),
+                                                                                                        resultGridCellCount,
                                                                                                         m_volumeType(),
                                                                                                         m_volumesType(),
                                                                                                         m_volumeResultType(),
diff --git a/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.h b/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.h
index 93649b6a83..1d012956da 100644
--- a/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.h
+++ b/ApplicationLibCode/ProjectDataModel/RimWellTargetCandidatesGenerator.h
@@ -50,9 +50,10 @@ class RimWellTargetCandidatesGenerator : public caf::PdmObject
     void                          initAfterRead() override;
 
 private:
-    void generateCandidates( RimEclipseCase* eclipseCase );
-    void updateAllBoundaries();
-    void generateEnsembleStatistics();
+    void        generateCandidates( RimEclipseCase* eclipseCase );
+    void        updateAllBoundaries();
+    void        generateEnsembleStatistics();
+    cvf::Vec3st getResultGridCellCount() const;
 
     RimEclipseCase* firstCase() const;
 
@@ -74,6 +75,10 @@ class RimWellTargetCandidatesGenerator : public caf::PdmObject
 
     caf::PdmChildField<RimEclipseResultDefinition*> m_resultDefinition;
 
+    caf::PdmField<int> m_cellCountI;
+    caf::PdmField<int> m_cellCountJ;
+    caf::PdmField<int> m_cellCountK;
+
     caf::PdmField<bool> m_generateEnsembleStatistics;
 
     double m_minimumVolume;
diff --git a/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.cpp b/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.cpp
index 58087d6cde..76dde37784 100644
--- a/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.cpp
+++ b/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.cpp
@@ -724,6 +724,7 @@ std::vector<RigWellTargetCandidatesGenerator::ClusterStatistics>
 //--------------------------------------------------------------------------------------------------
 RimRegularGridCase* RigWellTargetCandidatesGenerator::generateEnsembleCandidates( RimEclipseCaseEnsemble& ensemble,
                                                                                   size_t                  timeStepIdx,
+                                                                                  const cvf::Vec3st&      resultGridCellCount,
                                                                                   VolumeType              volumeType,
                                                                                   VolumesType             volumesType,
                                                                                   VolumeResultType        volumeResultType,
@@ -754,6 +755,7 @@ RimRegularGridCase* RigWellTargetCandidatesGenerator::generateEnsembleCandidates
 
     RimRegularGridCase* targetCase = new RimRegularGridCase;
     targetCase->setBoundingBox( boundingBox );
+    targetCase->setCellCount( resultGridCellCount );
     targetCase->createModel( "" );
 
     std::vector<int> occupancy;
diff --git a/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.h b/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.h
index 1dbda908b4..a5a6834d4b 100644
--- a/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.h
+++ b/ApplicationLibCode/ReservoirDataModel/Well/RigWellTargetCandidatesGenerator.h
@@ -87,6 +87,7 @@ class RigWellTargetCandidatesGenerator
 
     static RimRegularGridCase* generateEnsembleCandidates( RimEclipseCaseEnsemble& ensemble,
                                                            size_t                  timeStepIdx,
+                                                           const cvf::Vec3st&      resultGridCellCount,
                                                            VolumeType              volumeType,
                                                            VolumesType             volumesType,
                                                            VolumeResultType        volumeResultType,