diff --git a/Makefile.am b/Makefile.am
index 5496cba0f..5aff607a3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,6 +14,7 @@ nobase_include_HEADERS = \
opm/polymer/GravityColumnSolverPolymer.hpp \
opm/polymer/GravityColumnSolverPolymer_impl.hpp \
opm/polymer/PolymerProperties.hpp \
+opm/polymer/PolymerState.hpp \
opm/polymer/SinglePointUpwindTwoPhasePolymer.hpp \
opm/polymer/TransportModelPolymer.hpp \
opm/polymer/polymerUtilities.hpp
diff --git a/opm/polymer/PolymerState.hpp b/opm/polymer/PolymerState.hpp
new file mode 100644
index 000000000..ebda6bb76
--- /dev/null
+++ b/opm/polymer/PolymerState.hpp
@@ -0,0 +1,58 @@
+/*
+ Copyright 2012 SINTEF ICT, Applied Mathematics.
+
+ This file is part of the Open Porous Media project (OPM).
+
+ OPM is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ OPM is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with OPM. If not, see .
+*/
+
+#ifndef OPM_POLYMERSTATE_HEADER_INCLUDED
+#define OPM_POLYMERSTATE_HEADER_INCLUDED
+
+
+#include
+#include
+#include
+
+namespace Opm
+{
+
+ /// Simulator state for a two-phase simulator with polymer.
+ class PolymerState : public TwophaseState
+ {
+ public:
+ void init(const UnstructuredGrid& g)
+ {
+ TwophaseState::init(g);
+ concentration_.resize(g.number_of_cells, 0.0);
+ cmax_.resize(g.number_of_cells, 0.0);
+ }
+
+ std::vector& concentration() { return concentration_; }
+ std::vector& maxconcentration() { return cmax_; }
+
+ const std::vector& concentration() const { return concentration_; }
+ const std::vector& maxconcentration() const { return cmax_; }
+
+ private:
+ std::vector concentration_;
+ std::vector cmax_;
+ };
+
+} // namespace Opm
+
+
+
+
+#endif // OPM_POLYMERSTATE_HEADER_INCLUDED