BP PLC and its partners will lead a $6 billion development of the giant Azeri-Chirag-Deepwater Gunashli oil-field complex offshore Azerbaijan, the U.K. oil major said Friday. The Azeri Central East project in the Caspian Sea, which includes a new offshore platform and facilities designed to process up to 100,000 barrels of oil a day, is expected to achieve its first production in 2023 and to produce up to 300 million barrels over its lifetime, BP said. …