diff --git a/cgridinterface.c b/opmcore/utility/cpgpreprocess/cgridinterface.c similarity index 100% rename from cgridinterface.c rename to opmcore/utility/cpgpreprocess/cgridinterface.c diff --git a/cgridinterface.h b/opmcore/utility/cpgpreprocess/cgridinterface.h similarity index 100% rename from cgridinterface.h rename to opmcore/utility/cpgpreprocess/cgridinterface.h diff --git a/facetopology.c b/opmcore/utility/cpgpreprocess/facetopology.c similarity index 100% rename from facetopology.c rename to opmcore/utility/cpgpreprocess/facetopology.c diff --git a/facetopology.h b/opmcore/utility/cpgpreprocess/facetopology.h similarity index 100% rename from facetopology.h rename to opmcore/utility/cpgpreprocess/facetopology.h diff --git a/geometry.c b/opmcore/utility/cpgpreprocess/geometry.c similarity index 100% rename from geometry.c rename to opmcore/utility/cpgpreprocess/geometry.c diff --git a/geometry.h b/opmcore/utility/cpgpreprocess/geometry.h similarity index 100% rename from geometry.h rename to opmcore/utility/cpgpreprocess/geometry.h diff --git a/grdecl.h b/opmcore/utility/cpgpreprocess/grdecl.h similarity index 100% rename from grdecl.h rename to opmcore/utility/cpgpreprocess/grdecl.h diff --git a/grid.h b/opmcore/utility/cpgpreprocess/grid.h similarity index 100% rename from grid.h rename to opmcore/utility/cpgpreprocess/grid.h diff --git a/mxgrdecl.c b/opmcore/utility/cpgpreprocess/mxgrdecl.c similarity index 100% rename from mxgrdecl.c rename to opmcore/utility/cpgpreprocess/mxgrdecl.c diff --git a/mxgrdecl.h b/opmcore/utility/cpgpreprocess/mxgrdecl.h similarity index 100% rename from mxgrdecl.h rename to opmcore/utility/cpgpreprocess/mxgrdecl.h diff --git a/preprocess.c b/opmcore/utility/cpgpreprocess/preprocess.c similarity index 100% rename from preprocess.c rename to opmcore/utility/cpgpreprocess/preprocess.c diff --git a/preprocess.h b/opmcore/utility/cpgpreprocess/preprocess.h similarity index 100% rename from preprocess.h rename to opmcore/utility/cpgpreprocess/preprocess.h diff --git a/processgrid.c b/opmcore/utility/cpgpreprocess/processgrid.c similarity index 100% rename from processgrid.c rename to opmcore/utility/cpgpreprocess/processgrid.c diff --git a/processgrid.m b/opmcore/utility/cpgpreprocess/processgrid.m similarity index 100% rename from processgrid.m rename to opmcore/utility/cpgpreprocess/processgrid.m diff --git a/readvector.cpp b/opmcore/utility/cpgpreprocess/readvector.cpp similarity index 100% rename from readvector.cpp rename to opmcore/utility/cpgpreprocess/readvector.cpp diff --git a/readvector.hpp b/opmcore/utility/cpgpreprocess/readvector.hpp similarity index 100% rename from readvector.hpp rename to opmcore/utility/cpgpreprocess/readvector.hpp diff --git a/scaneclipsedeck.c b/opmcore/utility/cpgpreprocess/scaneclipsedeck.c similarity index 100% rename from scaneclipsedeck.c rename to opmcore/utility/cpgpreprocess/scaneclipsedeck.c diff --git a/sparsetable.c b/opmcore/utility/cpgpreprocess/sparsetable.c similarity index 100% rename from sparsetable.c rename to opmcore/utility/cpgpreprocess/sparsetable.c diff --git a/sparsetable.h b/opmcore/utility/cpgpreprocess/sparsetable.h similarity index 100% rename from sparsetable.h rename to opmcore/utility/cpgpreprocess/sparsetable.h diff --git a/test_readvector.cpp b/opmcore/utility/cpgpreprocess/test_readvector.cpp similarity index 100% rename from test_readvector.cpp rename to opmcore/utility/cpgpreprocess/test_readvector.cpp diff --git a/uniquepoints.c b/opmcore/utility/cpgpreprocess/uniquepoints.c similarity index 100% rename from uniquepoints.c rename to opmcore/utility/cpgpreprocess/uniquepoints.c diff --git a/uniquepoints.h b/opmcore/utility/cpgpreprocess/uniquepoints.h similarity index 100% rename from uniquepoints.h rename to opmcore/utility/cpgpreprocess/uniquepoints.h