BP has started offshore work on the $2.9 billion Shah Deniz compressor project. The Shah Deniz gas field is in the Caspian Sea, where BP already operates as a major producer. A compressor installation supports the movement of gas from offshore wells into processing and transport systems. The size of the commitment makes the scheme one of BP's larger announced offshore developments in the region. The report was accompanied by a photograph connected with the project. No contract details or construction milestones were provided in the available announcement. The $2.9 billion estimate was not broken down into individual work packages.