XL Group plc To Announce Second Quarter 2011 Results On Tuesday, August 2, 2011

HAMILTON, BERMUDA - July 12, 2011

Hamilton, Bermuda – July 12, 2011 – XL Group plc (“XL” or the “Company”) (NYSE:XL) announced today that it intends to release its Second Quarter 2011 results after the close of regular stock market trading hours on Tuesday, August 2, 2011. A conference call to discuss the Company’s results will be held at 5:00 p.m. Eastern Time on Tuesday, August 2, 2011.The conference call can be accessed through a listen-only dial-in number or through a live webcast. To listen to the conference call, please dial (210) 795-0624 or (866) 617-1526: Passcode: “XL GLOBAL”. The webcast will be available at www.xlgroup.com and will be archived on XL’s website from approximately 9:00 p.m. Eastern Time on August 2, 2011, until 12 noon Eastern Time on September 2, 2011. A telephone replay of the conference call will also be available beginning at approximately 9:00 p.m. Eastern Time on August 2, 2011, until 12 noon Eastern Time on September 2, 2011, by dialing (203) 369-3232 or (800) 294-5428.About XLXL was formed in 1986 in response to the unmet risk management needs of 68 of the world's largest companies. This year, as XL celebrates its 25th anniversary, it remains the company clients look to for innovative insurance and reinsurance solutions for their most complex risks. XL Group plc, through its subsidiaries, is a global insurance and reinsurance company providing property, casualty, and specialty products to industrial, commercial, and professional firms, insurance companies and other enterprises on a worldwide basis. Its principal offices are located at No. 1 Hatch Street Upper, 4th Floor, Dublin 2, Ireland. More information about XL Group plc is available at www.xlgroup.com