Asia’s oil refiners are considering reducing output after margins slumped to their lowest for the season since 2003, according to industry sources and Refinitiv data. Companies that planned to trim output include SK Energy, a unit of SK Innovation, the Singapore Refinery Company (SRC), owned by PetroChina and Chevron Corp and at least one refiner in Thailand, five people familiar with the matter said. In China, independent refiners known as ‘teapots’, which account for about a fifth of the country’s crude imports, operated at below 50% of capacity on average in April through May, versus 64% in the first quarter, said Zang Wengang, an analyst with Sublime Information Co. A spokeswoman for SK Innovation spokeswoman declined to comment, […]