Bloomberg US crude was back in a bull market on Tuesday as Turkey threatened to shut down Kurdish oil exports in response to the region’s independence vote, while Trafigura Group and Citigroup Inc. added to warnings of a looming supply squeeze. Turkey can “close the valves” on oil shipments from Kurdistan, Turkish President Recep Tayyip Erdogan said. Ankara opposes an …

KUWAIT / Reuters Assets managed by Kuwait Investment Authority (KIA), one of the world’s biggest sovereign wealth funds, have grown more than 34 percent over the past five years, Finance Minister Anas al-Saleh said. Speaking at a Euromoney conference, Saleh described the state’s reserves and assets, managed by the KIA, as representing a “safety valve” for the economy during times …

Reuters BP said it had begun production at the Khazzan gas field in Oman, the sixth and largest of seven new upstream projects that are due to start for the British oil giant this year. Production at the field follows on from BP’s onshore compression and Juniper projects in Trinidad, West Nile Delta Phase 1 in Egypt, Persephone in Australia …