ABU DHABI - State-run Saudi Aramco has set its December contract price for propane at $460 a tonne, up $65 from November, it said on Monday. The prices provide a benchmark against which Middle East sales of liquefied petroleum gas (LPG) to Asia are priced. Saudi Aramco’s contract prices for propane and butane per tonne in U.S. dollars were set as follows. Product Nov Dec Change Propane 395 460 +65 Butane 435 475 +40