X0306 4 2016-01-26 0000092416 SOUTHWEST GAS CORP SWX 0001550190 Moody William N 5241 SPRING MOUNTAIN ROAD LAS VEGAS NV 89150-0002 1 Executive Vice President Common Stock 2015-06-01 5 A 0 80.8680 55.2100 A 16016.5590 D Common Stock 2015-06-01 5 A 0 30.2600 55.2100 A 16046.8190 D Common Stock 2015-06-01 5 A 0 5.8080 55.2100 A 16052.6270 D Common Stock 2015-09-01 5 A 0 82.6430 54.4200 A 16135.2700 D Common Stock 2015-09-01 5 A 0 30.9240 54.4200 A 16166.1940 D Common Stock 2015-09-01 5 A 0 5.9350 54.4200 A 16172.1290 D Common Stock 2015-12-01 5 A 0 80.8800 56.0200 A 16253.0090 D Common Stock 2015-12-01 5 A 0 30.2640 56.0200 A 16283.2730 D Common Stock 2015-12-01 5 A 0 5.8090 56.0200 A 16289.0820 D Common Stock 2016-01-26 4 F 0 677.4480 0.0000 D 15611.6340 D Common Stock 2016-01-26 4 F 0 872.9020 0.0000 D 14738.7320 D Common Stock 2015-06-01 5 A 0 41.5581 55.2100 A 5706.1240 I By 401(k) Common Stock 2015-09-01 5 A 0 82.8342 54.4200 A 5788.9582 I By 401(k) Common Stock 2015-12-01 5 A 0 4.4257 56.0200 A 5793.3839 I By 401(k) Common Stock 2015-06-01 5 A 0 0.8180 55.2100 A 112.1230 I By Custodian For Child Common Stock 2015-09-01 5 A 0 0.8290 54.4200 A 112.9520 I By Custodian For Child Common Stock 2015-12-01 5 A 0 0.8220 56.0200 A 113.7740 I By Custodian For Child Amounts voluntarily reported were acquired through exempt dividend reinvestment transactions. Joshua M. Westerman, POA 2016-01-26