X0306 4 2016-09-20 0000007332 SOUTHWESTERN ENERGY CO SWN 0001103813 KERLEY GREGORY D 10000 ENERGY DRIVE SPRING TX 77389 1 Common Stock 2016-04-01 5 J 0 E 3508 8.9081 A 312064 D Common Stock 2016-07-01 5 J 0 E 2437 13.2183 A 314501 D Common Stock 2016-09-20 4 S 0 12000 14.3404 D 302501 D On March 16, 2016, the Issuer declared a quarterly dividend of $15.625 per share on its 6.25% Series B Mandatory Convertible Preferred Stock, payable on April 15, 2016, to holders of record on April 1, 2016. The dividend was paid in shares of common stock based on the Volume Weighted Average Price per share over the five consecutive trading day period ending on the second trading day immediately preceding the applicable dividend payment day, multiplied by 97%. On June 14, 2016, the Issuer declared a quarterly dividend of $15.625 per share on its 6.25% Series B Mandatory Convertible Preferred Stock, payable on July 15, 2016, to holders of record on July 1, 2016. The dividend was paid in shares of common stock based on the Volume Weighted Average Price per share over the five consecutive trading day period ending on the second trading day immediately preceding the applicable dividend payment day, multiplied by 97%. This transaction was executed in multiple trades at prices ranging from $14.32 to $14.38. The price reported above in Column 4 reflects the weighted average purchase price. The reporting person hereby undertakes to provide, upon written request, to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected. /s/ Melissa D. McCarty, Attorney-in-fact for Mr. Kerley 2016-09-21