b'APPENDIX APPENDIXSASBQuestion SASB Title Disclosure Title Response SASBQuestion SASB Title Disclosure Title ResponseCode CodePercentage ofWe publish this information in our annual DOT Report Filings.Number of: (1) Integrity ofdistribution pipelineAdditionally, the data is made available on our website, in ourIF-GU- Activityresidential, (2)Historical information is available in the Atmos Energy Corporation IF-GU- 8 Gas Deliverythat is (1) cast annual Corporate Responsibility and Sustainability Report, and in000.A 11 Metric commercial, andStatistical Summary, which is available on the Atmos Energy Website.540a.2. Infrastructure and/or wroughtour monthly Investor Updates. As of September 30, 2020, we had(3) industrial iron and (2)356 miles of cast iron and 4,998 miles of unprotected steel whichcustomers servedunprotected steel represents approximately 7.6% of our distribution pipeline.Amount of natural In fiscal year 2020 we inspected approximately 18% or 1,035 milesgas delivered of the 5,684 total transmission miles. to: (1) residential Percentage of gasIF-GU- Activitycustomers, (2)Historical information is available in the Atmos Energy Corporation IF-GU- Integrity of(1) transmissionAtmos Energy surveys the approximately 75,000 miles of our000.B 12 Metric commercialStatistical Summary, which is available on the Atmos Energy Website.540a.3. 9 Gas Deliveryand (2) distributiondistribution and transmission pipelines at rates and frequencies thatcustomers, (3) Infrastructure pipelines inspectedmeet and often exceed state and federal guidelines. Monitoringindustrial customers, frequency of pipelines is determined by federal and state pipelineand (4) transferred safety codes, accepted industry standards, and internal Atmosto a third partyEnergy practices and procedures.Length of gas (1)At September30, 2020, in our distribution segment, we owned Atmos Energy is committed to being the safest provider of natural gas.IF-GU- Activitytransmission andan aggregate of 71,558 miles of underground distribution and Thats why we invest approximately $2 billion a year to modernize our000.C 13 Metric (2) distributiontransmission mains throughout our distribution systems. Through our pipeline infrastructure. pipelines pipeline and storage segment we also owned 5,684 miles of gas transmission lines.Our system includes more than 75,000 miles of distribution and transmission pipelines, as well as smaller service pipelines that connect directly to homes and businesses. We bury much of our pipe underground, where it is away from weather and activities that commonly cause damage and leaks. Atmos Energy has always had processes and procedures in place to ensure the safety of our distribution and transmission network. During fiscal 2019, we adopted a Pipeline Safety Management System (PSMS), which formally documents our processes and procedures under a systematic and structured framework that builds on our established pipeline safety programs. PSMS was developed by the American Petroleum Institute and is a recommended practice for the pipeline industry. All Atmos Energy employees play a role in our PSMS through identification, Description ofprevention, and remediation of operational safety risks.efforts to manage Integrity ofthe integrity ofAdditionally, because third-party damage represents one of the greatest IF-GU- 10 Gas Deliverygas deliverythreats to distribution systems, Atmos Energy administers a Damage 540a.4. Infrastructure infrastructure,Prevention Ambassador Program that empowers team members to including risksidentify and prevent potential digging accidents in the field. In fiscal related to safety2020, ambassadors inspected more than 28,000 excavation sites, and emissions helping to prevent many potentially dangerous and costly accidents. Additionally, we operate an emergency hotline 24 hours a day, seven days a week to respond to and investigate reports of natural gas leaks.Atmos Energy is committed to practices that reduce methane emissions from our transmission and distribution systems, including infrastructure renewal programs to replace aging steel and cast iron distribution pipelines. Atmos Energy utilizes a number of practices in its day-to-day operations to prevent or reduce methane emissions. Some of the practices include but are not limited to the following: Drawing down transmission line pressure when repairing or working on the pipelines to reduce natural gas released to the atmosphere. Rerouting gas to minimize or prevent venting or blowdowns. Installing pipeline stopples and bypasses as necessary to maintain operations and minimize extent of blowdown. Utilizing flares to combust methane instead of releasing methane to the atmosphere.This index is designed to provide information from the Sustainability Accounting Standards Board (SASB) reporting framework. It identifies where we make certain disclosures and provides unaudited information for the Gas Utilities & Distributors industry section within the infrastructure sector.ATMOS ENERGY CORPORATION ATMOS ENERGY CORPORATION'