In the wake of significant financial losses from the BP oil spill and in response to a proliferation of deepwater offshore drilling worldwide, more than 50 U.S. and other global investors have sent letters to major energy companies asking them to disclose information regarding their risk oversight measures, including spill prevention and response plans, for their own offshore oil operations around the world... The letters were sent to 27 companies... Oil and Gas Companies Receiving Letters: Apache, ATP Oil and Gas, BG Group plc, BHP Billiton, Chevron, ConocoPhillips, ENI, ExxonMobil, Hess, Husky, Maersk, Marathon, Murphy, Newfield, Nexen, OGX Petróleo e Gás Participações, OMV, Petrobras, Plains Exploration and Production, Repsol YPF, Shell, Statoil, Suncor, Talisman, Total, Tullow Oil plc, Woodside Energy Ltd. Insurance Companies Receiving Letters: ACE, AIG, Amlin, Arch Capital, Aspen, AXIS, Beazley PLC, Catlin, Chaucer, Everest Re, Flagstone Reinsurance, Hanover Re, Hiscox, Lancashire, Lloyd's, Montpelier Re, Munich Re, PartnerRe, RJ Kiln & Co., Swiss Re, Tokyo Marine Holdings (parent of RJ Kiln), Transatlantic Re, Travelers, Validus Re, W.R. Berkley, XL Capital. [also refers to Anadarko]