Call 811 before. Ya dig? We understand sometimes you just have to dig. But be sure to call 811 at least two business days before you stick a shovel, backhoe or paw into your yard. Atmos Energy will locate underground utility-owned lines, so you know where to avoid. I's free and it's the law! ATMOS energy. Gus Gopbr 811 atmosenergy.com/Call811 Call 811 before. Ya dig? We understand sometimes you just have to dig. But be sure to call 811 at least two business days before you stick a shovel, backhoe or paw into your yard. Atmos Energy will locate underground utility-owned lines, so you know where to avoid. I's free and it's the law! ATMOS energy. Gus Gopbr 811 atmosenergy.com/Call811