US diplomatic information, filtered by Wikileaks, reveals further details on the alleged financial and operating activities of Venezuelan state-run oil company Pdvsa.
A statement released in 2007 by a Pdvsa senior anonymous source and quoted by the US Embassy in Caracas revealed that the Venezuelan oil company stopped shipping oil to China at some point that year due to significant losses arising from special discounts that amounted to 20 (details on whether it was US dollars or percentage were not revealed), and subsequently 18 after the two countries held negotiations.
US diplomats in Caracas told the US State Department that the information had been confirmed by a senior representative of China National Petroleum Corporation (CNPC).
Over the years, Venezuela and China have denied that the latter has received special discount on oil.
http://www.eluniversal.com/2011/09/05/wikileaks-releases-venezuela-china-special-oil-discounts.shtmlI'm pretty sure its dollars per barrel. But anyway, it's not like Venezuela needs the money to upgrade it's electric grid or fight crime.