UNECE » Sustainable Energy» Areas of Work » UNFC and Resource Classification » United Nations Framework Classification for Fossil Energy and Mineral Reserves and Resources 2009 » Draft UNFC Specifications for public comment» Draft Specifications for Application of the United Nations Framework Classification for Fossil Energy and Mineral Reserves and Resources 2009 (UNFC-2009) and Draft Explanatory Report » Subject: Comments to Draft Specifications for Application of UNFC-2009 from Repsol S.A.