diff --git a/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.cpp b/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.cpp
index 0de1a10fac..767f3fd162 100644
--- a/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.cpp
@@ -727,72 +727,18 @@ void RigFractureTransCalc::computeUpscaledPropertyFromStimPlan( QString resultNa
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
-void RigFractureTransCalc::computeFlowInFracture()
+void RigFractureTransCalc::computeFlowInFracture(RigStimPlanCell* stimPlanCell)
 {
+    std::vector<cvf::Vec3d> polygon = stimPlanCell->getPolygon();
 
-    //TODO: A lot of common code with function for calculating transmissibility... 
+    //The polygon corners are always stored in the same order
+    double verticalSideLength = (polygon[1] - polygon[0]).length();
+    double horisontalSideLength = (polygon[2] - polygon[1]).length();
 
-    RimStimPlanFractureTemplate* fracTemplateStimPlan;
-    RimEllipseFractureTemplate* fracTemplateEllipse;
-    if (dynamic_cast<RimStimPlanFractureTemplate*>(m_fracture->attachedFractureDefinition()))
-    {
-        fracTemplateStimPlan = dynamic_cast<RimStimPlanFractureTemplate*>(m_fracture->attachedFractureDefinition());
-    }
-    else if (dynamic_cast<RimEllipseFractureTemplate*>(m_fracture->attachedFractureDefinition()))
-    {
-        fracTemplateEllipse = dynamic_cast<RimEllipseFractureTemplate*>(m_fracture->attachedFractureDefinition());
-    }
-    else return;
-
-    //TODO: A lot of common code with function above... Can be cleaned up...?
-    std::vector<size_t> fracCells = m_fracture->getPotentiallyFracturedCells();
-
-
-    RigEclipseCaseData* eclipseCaseData = m_case->eclipseCaseData();
-
-    RifReaderInterface::PorosityModelResultType porosityModel = RifReaderInterface::MATRIX_RESULTS;
-    RimReservoirCellResultsStorage* gridCellResults = m_case->results(porosityModel);
-    RigActiveCellInfo* activeCellInfo = eclipseCaseData->activeCellInfo(porosityModel);
-
-
-    std::vector<RigFractureData> fracDataVec;
-
-    for (size_t fracCell : fracCells)
-    {
-        double Kw;  // Conductivity (Permeability K times width w)
-
-        if (fracTemplateEllipse)
-        {
-            double K = fracTemplateEllipse->fractureConductivity();     // Permeability
-            double w = fracTemplateEllipse->width();                    // Width
-
-            //TODO: UNit handling...
-            if (fracTemplateEllipse->fractureTemplateUnit() == RimDefines::UNITS_FIELD)
-            {
-                w = RimDefines::inchToFeet(w);
-            }
-    
-            Kw = K * w;
-        }
-        else if (fracTemplateStimPlan)
-        {
-            QString resultName = "CONDUCTIVITY";
-            QString resultUnit;
-            if (fracTemplateStimPlan->fractureTemplateUnit() == RimDefines::UNITS_METRIC) resultUnit = "md-m";
-            if (fracTemplateStimPlan->fractureTemplateUnit() == RimDefines::UNITS_FIELD)  resultUnit = "md-ft";
-
-            size_t timeStepIndex = 0; //TODO... 
-            caf::AppEnum< RimDefines::UnitSystem > unitSystem = RimDefines::UNITS_METRIC;
-            std::pair<double, double> upscaledValues = flowAcrossLayersUpscaling(resultName, resultUnit, timeStepIndex, unitSystem, fracCell);
-            Kw = (upscaledValues.first + upscaledValues.second) / 2;
-        }
-
-        Kw = convertConductivtyValue(Kw, fracTemplateEllipse->fractureTemplateUnit(), m_unitForCalculation);
-    }
-
-
-    m_fracture->setFractureData(fracDataVec);
+    double verticalTrans = stimPlanCell->getConductivtyValue() * verticalSideLength / (horisontalSideLength / 2);
+    double horizontalTrans = stimPlanCell->getConductivtyValue() * horisontalSideLength / (verticalSideLength / 2);
 
+    stimPlanCell->setTransmissibilityInFracture(verticalTrans, horizontalTrans);
 }
 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.h b/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.h
index 2e240f317d..23afb166d9 100644
--- a/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.h
+++ b/ApplicationCode/ReservoirDataModel/RigFractureTransCalc.h
@@ -59,7 +59,7 @@ public:
 
     void                        calculateStimPlanCellsMatrixTransmissibility(RigStimPlanCell* stimPlanCell, RigFractureStimPlanCellData* fracStimPlanCellData);
     
-    void                        computeFlowInFracture();
+    void                        computeFlowInFracture(RigStimPlanCell* stimPlanCell);
     void                        computeFlowIntoTransverseWell();
 
 
diff --git a/ApplicationCode/ReservoirDataModel/RigStimPlanCell.cpp b/ApplicationCode/ReservoirDataModel/RigStimPlanCell.cpp
index bf41ed15b5..22da30ce22 100644
--- a/ApplicationCode/ReservoirDataModel/RigStimPlanCell.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigStimPlanCell.cpp
@@ -44,6 +44,15 @@ RigStimPlanCell::~RigStimPlanCell()
 
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RigStimPlanCell::setTransmissibilityInFracture(double valueHorizontal, double valueVertical)
+{
+    m_transmissibilityInFractureHorizontal = valueHorizontal;
+    m_transmissibilityInFractureVertical = valueVertical;
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ReservoirDataModel/RigStimPlanCell.h b/ApplicationCode/ReservoirDataModel/RigStimPlanCell.h
index 9afeb8325b..ef32b07d36 100644
--- a/ApplicationCode/ReservoirDataModel/RigStimPlanCell.h
+++ b/ApplicationCode/ReservoirDataModel/RigStimPlanCell.h
@@ -45,6 +45,7 @@ public:
 
     void setConductivityValue(double cond) { m_concutivityValue = cond; }
     void setDisplayValue(double value) { m_displayValue = value; };
+    void setTransmissibilityInFracture(double valueHorizontal, double valueVertical);
 
 //     void                    addContributingEclipseCell(size_t fracCell, double transmissibility);
 
@@ -55,7 +56,7 @@ private:
     size_t                  m_i;
     size_t                  m_j;
 
-//     std::vector<size_t>     contributingEclipseCells;
-//     std::vector<double>     contributingEclipseCellTransmisibilities;
+    double                  m_transmissibilityInFractureVertical;
+    double                  m_transmissibilityInFractureHorizontal;
 
 };
\ No newline at end of file