X0306 4 2013-03-01 0 0001004155 AGL RESOURCES INC GAS 0001145921 SOMERHALDER JOHN W II TEN PEACHTREE PLACE ATLANTA GA 30309 1 1 0 0 Chairman, President and CEO Common Stock 2013-03-01 4 F 0 6715 39.96 D 145011.1 D Common Stock 7332.002 I by 401(k) Common Stock 36273.5328 I by Non-Qualified Savings Plan Common Stock Equivalent Units (CSEs) 0.00 2013-03-01 4 A 0 61.5786 40.18 A Common Stock 61.5786 35454.7912 D Includes 69.556 shares allocated to the reporting person's account on March 1, 2013 pursuant to a dividend reinvestment feature of the AGL Resources Inc. Direct Stock Purchase and Dividend Reinvestment Plan. Also includes 169.084 shares allocated to the reporting person's account on March 1, 2013 under the AGL Resources Inc. Employee Stock Purchase Plan. Information as of statement dated December 31, 2012. Information as of March 1, 2013. Immediately. The units are to be settled in cash upon the reporting person's termination of employment based on the fair market value of the Company's common stock as of the date of valuation. The reporting person may transfer the value of his common stock equivalent units into an alternative investment account at any time prior to settlement. Includes 417.9669 CSEs allocated to the reporting person's account on March 1, 2013 pursuant to a dividend reinvestment feature of the AGL Resources Inc. Non-Qualified Savings Plan. Barbara P. Christopher, by power of attorney 2013-03-05