OREANDA-NEWS. April 15, 2015. As per p.8 of Principal and non-principal futures listing Methodology (approved by NCC Management Board 29 May 2014) on 13/04/2015, 19-00 (MSK) Xi parameter for non-principal futures OJSC "Surgutneftegaz" was changed to -3000 (SNGR), -6000(SNGP).

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