Saudi Arabia, the world's top oil exporter, on Sunday slashed its prices for Asian buyers to close to their lowest level in four years, adding to speculation it is seeking to regain market share as part of OPEC+'s strategy to speed up oil output hikes. State oil company Saudi Aramco cut the May official selling price (OSP) for flagship Arab Light crude by $2.30 to $1.20 a barrel above the average of Oman and Dubai prices, a pricing document from the producer showed. The drop marks the biggest decline in more than two years and is the second consecutive month Aramco has lowered its prices, Reuters' record of Saudi OSPs showed.