diff --git a/opm/autodiff/GridHelpers.cpp b/opm/autodiff/GridHelpers.cpp
index 30cd574f7..29d8ec72f 100644
--- a/opm/autodiff/GridHelpers.cpp
+++ b/opm/autodiff/GridHelpers.cpp
@@ -196,6 +196,12 @@ double faceArea(const Dune::CpGrid& grid, int face_index)
 {
     return grid.faceArea(face_index);
 }
+
+int faceTag(const Dune::CpGrid& grid,
+            const Opm::AutoDiffGrid::Cell2FacesRow::iterator& cell_face)
+{
+    return grid.faceTag(cell_face);
+}
 } // end namespace UgGridHelpers
 
 namespace AutoDiffGrid
diff --git a/opm/autodiff/GridHelpers.hpp b/opm/autodiff/GridHelpers.hpp
index 6d95df367..502a3bb2e 100644
--- a/opm/autodiff/GridHelpers.hpp
+++ b/opm/autodiff/GridHelpers.hpp
@@ -178,8 +178,8 @@ public:
     {
     public:
         iterator(const Dune::cpgrid::OrientedEntityTable<0,1>::row_type* row,
-                 int index)
-            : row_(row), index_(index)
+                 int index, int cell_index)
+            : row_(row), index_(index), cell_index_(cell_index)
         {}
 
         void increment()
@@ -210,32 +210,40 @@ public:
         {
             return index_==o.index_;
         }
+        int getCellIndex()const
+        {
+            return cell_index_;
+        }
         
     private:
         const Dune::cpgrid::OrientedEntityTable<0,1>::row_type* row_;
         int index_;
+        int cell_index_;
     };
     
     typedef iterator const_iterator;
 
-    Cell2FacesRow(const Dune::cpgrid::OrientedEntityTable<0,1>::row_type row)
-        : row_(row)
+    Cell2FacesRow(const Dune::cpgrid::OrientedEntityTable<0,1>::row_type row,
+                  const int cell_index)
+        : row_(row), cell_index_(cell_index)
     {}
 
     const_iterator begin() const
     {
-        return const_iterator(&row_, 0);
+        return const_iterator(&row_, 0, cell_index_);
     }
 
     const_iterator end() const
     {
-        return const_iterator(&row_, row_.size());
+        return const_iterator(&row_, row_.size(), cell_index_);
     }
     
 private:
     const Dune::cpgrid::OrientedEntityTable<0,1>::row_type row_;
+    const int cell_index_;
 };
 
+
 class Cell2FacesContainer
 {
 public:
@@ -247,7 +255,8 @@ public:
     
     Cell2FacesRow operator[](int cell_index) const
     {
-        return Cell2FacesRow(grid_->cellFaceRow(cell_index));
+        auto& row=grid_->cellFaceRow(cell_index);
+        return Cell2FacesRow(row, cell_index);
     }
     
         /// \brief Get the number of non-zero entries.
@@ -386,6 +395,13 @@ faceCells(const Dune::CpGrid& grid);
 const double* faceNormal(const Dune::CpGrid& grid, int face_index);
 
 double faceArea(const Dune::CpGrid& grid, int face_index);
+
+/// \brief Get Eclipse Cartesian tag of a face
+/// \param grid The grid that the face is part of.
+/// \param cell_face The face attached to a cell. Usually obtained from face2Cells.
+/// \return 0, 1, 2, 3, 4, 5 for I-, I+, J-, J+, K-, K+
+int faceTag(const Dune::CpGrid& grid,
+            const Opm::AutoDiffGrid::Cell2FacesRow::iterator& cell_face);
 } // end namespace UgGridHelperHelpers
 
 namespace AutoDiffGrid