diff --git a/ApplicationCode/ReservoirDataModel/RigCurveDataTools.cpp b/ApplicationCode/ReservoirDataModel/RigCurveDataTools.cpp
index 6ddfeedb28..cb0bcd9cbf 100644
--- a/ApplicationCode/ReservoirDataModel/RigCurveDataTools.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigCurveDataTools.cpp
@@ -27,7 +27,7 @@
 /// 
 //--------------------------------------------------------------------------------------------------
 RigCurveDataTools::CurveIntervals RigCurveDataTools::calculateIntervalsOfValidValues(const std::vector<double>& values,
-                                                                                     bool removeNegativeValues)
+                                                                                     bool includePositiveValuesOnly)
 {
     CurveIntervals intervals;
 
@@ -37,7 +37,7 @@ RigCurveDataTools::CurveIntervals RigCurveDataTools::calculateIntervalsOfValidVa
     size_t valueCount = values.size();
     while (vIdx < valueCount)
     {
-        bool isValid = RigCurveDataTools::isValidValue(values[vIdx], removeNegativeValues);
+        bool isValid = RigCurveDataTools::isValidValue(values[vIdx], includePositiveValuesOnly);
 
         if (!isValid)
         {
@@ -90,14 +90,14 @@ std::vector<std::pair<size_t, size_t>> RigCurveDataTools::computePolyLineStartSt
 //-------------------------------------------------------------------------------------------------- 
 ///  
 //-------------------------------------------------------------------------------------------------- 
-bool RigCurveDataTools::isValidValue(double value, bool removeNegativeValues)
+bool RigCurveDataTools::isValidValue(double value, bool allowPositiveValuesOnly)
 {
     if (value == HUGE_VAL || value == -HUGE_VAL || value != value)
     {
         return false;
     }
 
-    if (removeNegativeValues && std::signbit(value))
+    if (allowPositiveValuesOnly && value <= 0)
     {
         return false;
     }
diff --git a/ApplicationCode/ReservoirDataModel/RigCurveDataTools.h b/ApplicationCode/ReservoirDataModel/RigCurveDataTools.h
index 9f559324aa..ab195f241f 100644
--- a/ApplicationCode/ReservoirDataModel/RigCurveDataTools.h
+++ b/ApplicationCode/ReservoirDataModel/RigCurveDataTools.h
@@ -39,7 +39,7 @@ public:
 
 public:
     static CurveIntervals calculateIntervalsOfValidValues(const std::vector<double>& values,
-                                                          bool removeNegativeValues);
+                                                          bool includePositiveValuesOnly);
 
     template <typename T>
     static void getValuesByIntervals(const std::vector<T>& values,
@@ -62,6 +62,6 @@ public:
 public:
     // Helper methods, available as public to be able to access from unit tests
 
-    static bool isValidValue(double value, bool removeNegativeValues);
+    static bool isValidValue(double value, bool allowPositiveValuesOnly);
 };
 
diff --git a/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.cpp b/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.cpp
index 0a68ded6e7..9db96c0326 100644
--- a/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.cpp
+++ b/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.cpp
@@ -51,7 +51,7 @@ RiuLineSegmentQwtPlotCurve::~RiuLineSegmentQwtPlotCurve()
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
-void RiuLineSegmentQwtPlotCurve::setSamplesFromXValuesAndYValues(const std::vector<double>& xValues, const std::vector<double>& yValues, bool removeNegativeValues)
+void RiuLineSegmentQwtPlotCurve::setSamplesFromXValuesAndYValues(const std::vector<double>& xValues, const std::vector<double>& yValues, bool keepOnlyPositiveValues)
 {
     CVF_ASSERT(xValues.size() == yValues.size());
 
@@ -62,7 +62,7 @@ void RiuLineSegmentQwtPlotCurve::setSamplesFromXValuesAndYValues(const std::vect
         std::vector<double> filteredXValues;
 
         {
-            auto intervalsOfValidValues = RigCurveDataTools::calculateIntervalsOfValidValues(yValues, removeNegativeValues);
+            auto intervalsOfValidValues = RigCurveDataTools::calculateIntervalsOfValidValues(yValues, keepOnlyPositiveValues);
 
             RigCurveDataTools::getValuesByIntervals(yValues, intervalsOfValidValues, &filteredYValues);
             RigCurveDataTools::getValuesByIntervals(xValues, intervalsOfValidValues, &filteredXValues);
@@ -84,17 +84,17 @@ void RiuLineSegmentQwtPlotCurve::setSamplesFromXValuesAndYValues(const std::vect
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
-void RiuLineSegmentQwtPlotCurve::setSamplesFromDatesAndYValues(const std::vector<QDateTime>& dateTimes, const std::vector<double>& yValues, bool removeNegativeValues)
+void RiuLineSegmentQwtPlotCurve::setSamplesFromDatesAndYValues(const std::vector<QDateTime>& dateTimes, const std::vector<double>& yValues, bool keepOnlyPositiveValues)
 {
-    setSamplesFromXValuesAndYValues(RiuLineSegmentQwtPlotCurve::fromQDateTime(dateTimes), yValues, removeNegativeValues);
+    setSamplesFromXValuesAndYValues(RiuLineSegmentQwtPlotCurve::fromQDateTime(dateTimes), yValues, keepOnlyPositiveValues);
 }
 
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
-void RiuLineSegmentQwtPlotCurve::setSamplesFromTimeTAndYValues(const std::vector<time_t>& dateTimes, const std::vector<double>& yValues, bool removeNegativeValues)
+void RiuLineSegmentQwtPlotCurve::setSamplesFromTimeTAndYValues(const std::vector<time_t>& dateTimes, const std::vector<double>& yValues, bool keepOnlyPositiveValues)
 {
-    setSamplesFromXValuesAndYValues(RiuLineSegmentQwtPlotCurve::fromTime_t(dateTimes), yValues, removeNegativeValues);
+    setSamplesFromXValuesAndYValues(RiuLineSegmentQwtPlotCurve::fromTime_t(dateTimes), yValues, keepOnlyPositiveValues);
 }
 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.h b/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.h
index 5ec9ec5251..31e220fcf9 100644
--- a/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.h
+++ b/ApplicationCode/UserInterface/RiuLineSegmentQwtPlotCurve.h
@@ -49,15 +49,15 @@ public:
 
     void         setSamplesFromXValuesAndYValues(const std::vector<double>& xValues,
                                                  const std::vector<double>& yValues,
-                                                 bool removeNegativeValues);
+                                                 bool keepOnlyPositiveValues);
     
     void         setSamplesFromDatesAndYValues(const std::vector<QDateTime>& dateTimes,
                                                const std::vector<double>& yValues,
-                                               bool removeNegativeValues);
+                                               bool keepOnlyPositiveValues);
 
     void         setSamplesFromTimeTAndYValues(const std::vector<time_t>& dateTimes,
                                                const std::vector<double>& yValues,
-                                               bool removeNegativeValues);
+                                               bool keepOnlyPositiveValues);
 
     void         setLineSegmentStartStopIndices(const std::vector< std::pair<size_t, size_t> >& lineSegmentStartStopIndices);