AGA MAOP Document Review / PODS Implementation January 17, 2012

Company Overview Atmos Energy serves 3.2 million customers in 12 States Majority of transmission pipe located within state of Texas in 2 operating divisions Atmos Energy Pipeline division contains 6,600 miles of transmission pipeline Atmos Energy Distribution division contains 28,000 miles of distribution main 400 miles of >=20% SMYS 2

Service Territory

MAOP Documentation Get the plan together Key documents to consider assembling Hydro tests Mill Specs Inspectors logs Records location and form (paper or electronic) State specific requirements Considerations for volume and location of records in planning Considerations for staging efforts Class 3 and 4 and HCA’s in class 1 and 2

MAOP Documentation Get the documents Central Archives Approximately 60,000 boxes in Archives One Archive company, four different warehouses Box descriptions / Inventory system Field Records 50+ field offices Some contain MAOP related records Other records Rate Case filings Federal Power Commission certificate of public convenience filings 5

MAOP Documentation Inventory and analyze Inventory considerations Are records accurately described in the archive system? Should you update descriptions? Do you retain all documents reviewed? Scanning considerations Scan records at beginning or end of the process? Do you scan? GIS/PODS Integrate scanned documents to pipe via GIS 6

Major Integrity Program Elements PIM Data Gathering Threat Identification Risk Ranking Assessment Remediation Feedback Re- MOC Data from many sources Data belongs to all of us Departments Need To Share Data

PIM Need for Central Data CFR 192 Subpart O requires data collection & integration ASME B31.8S data integration / analysis Integrate & Align Different Data Sources Align data by pipe segment along centerline by station plus Analyze Assessments: Collect, Store, Compare Integrate Assessment Results with Physical, Operational and Maintenance Data Efficiently Collect Integrity information Collect Threat & Risk Data - Efficiently and As-Needed Improved HCA monitoring and analysis 8

Data Sources Central Data Compliance Records CP Data Inspections Patrols Surveys Leaks Incidents Subject Matter Expert Land Use Soil Customers Response Time Environment Central Data SCADA Gas Measurement Gas Quality Encroachments & Damage Data Compressors Valves Pipe Attributes Data Alignment Analysis Remediation P&M Measures Risk Rank Sheet Gen Integrity Assessments Geographic Information System Direct Examinations Repairs

Data Sources AutoCAD Extended Data Extract for Pipe Centerline and Attributes In-house Compliance Apps for Leak, Encroachment, Survey, Patrol Data Cathodic Protection Database Excel or Access Tables Field Input for HCA, Topography, etc Identified Site Data, Threats Assessment Plan, Assessment Methods Assessment Results Excavations, Repairs Flow & Pressure data Gas Quality data

Data Integration Challenges Most Data Sources are NOT Pipe Position Aware Naming conventions not consistent Moving spreadsheet information into databases Formatting data for risk evaluation Alignment of assessment surveys with GIS data Graphical presentation of assessment results Identification of potential threat interaction Identification of preventive and mitigative measures Comparing assessment results Alignment of compliance data with GIS

What is PODS? PODS = Pipeline Open Data Standard Open data standard for managing linear referenced transportation pipeline systems Industry Organization of Pipeline Companies, Contractors & Vendors Database Template, Not Software, In SQL or Oracle PODS Can Be Alternative or Addition to Central Pipeline GIS for Data Storage and Integration Standardized Reference Pipeline Range and Point “Events”

More About PODS Widespread industry supported initiative (standard model) Collective experience pipeline companies, vendors, contractors Flexibility to select technologies from multiple vendors without need to rebuild/re-structure data Pipeline Open Data Standard Non-profit pipeline trade association Industry driven, independent database modeling initiative PODS is an Open Data Structure that Encompasses requirements of pipeline industry (both gas and liquids) Provides basis for industry data and data exchange standards Atmos Energy is implementing PODS 4.02 with Oracle and Intrepid ™ 3.0 as the PODS Editor Enables standards-based GIS implementation

Key Implementation Issue Transmission Pipeline PODS Events HCA (2 Records) Class Location (2 Records) External Coating (2 Records) Wall Thickness (3 Records) Pipe Grade (4 Records) Segmented Records (12) Pipe Size Date of Installation Wall Thickness Grade External Coating Joint Type Seam Type Pipe Joint Coating Class MAOP HCA Etc….

PODS Data “Layers” - Pipeline operator, pipeline system - Pipeline centerline - Control and stationing Pipeline Routing - Pipe segments, specifications - Valves and other control facilities - Fittings and appurtenances - Cathodic protection - Coatings, pressure tests, etc. Pipeline & Specifications - Class locations - HCAs and HCA Ranges Class Locations & HCAs - Dynamic risk segments - Risk assessment ranges Pipeline Risk IM Assessment/Remediation Direct assessments In-line inspections - Assessment results - Anomalies - Verification/remediation Compliance - Patrol/inspection activities Maintenance & Operations - Maintenance activities Pipeline Incidents - Leaks, ruptures, failures and non-leaking damage Encroachment - DOT structures and identified sites - Pipeline encroachments including crossings

Intrepid™ – Maintain and View PODS Data “Desktop” Application Atmos Energy’s PODS interface App created & maintained by Coler & Colantonio (C&C) PODS & Intrepid are “Enterprise” systems Based on users role - Data loaded, reported or viewed  Design of tables and interfaces includes a variety of different systems Some employees - Authority To Enter or Revise Data  

PODS Implementation June, 2009 - PIM Effectiveness Study started by C&C March 2010 – PIM study report finalized May, 2010 – Approval for PODS implementation June, 2010 – First template for migration to PODS ready October, 2010 – First training for Atmos Energy December, 2010 – Phase 1 PODS in Production (Hosted) March, 2011 – PODS data used for Risk Assessment (American Innovations RIPL application) December, 2011 – Database/software installed Company Servers February, 2011 – PODS to be in production on Company servers

PODS Implementation Plan

PODS Data Centralized / aligned data Source data for: Integrity assessment results Excavations Integrity repairs Subject matter expert data Assessment plan Automated updates from other source databases: Cathodic Protection Leaks Exposures Surveys / Patrols Gas flow / pressure / quality

PODS Benefits Visual presentation of aligned data Centerline data on aerial imagery Risk / Integrity Sheets Improve risk analysis process Use of available geographic data Soil Fault lines Crossings Anomaly analysis Reporting Compliance reports Pre and post assessment reports Ad hoc reporting

Data Currently in PODS Pipe & Features Operations – Compliance Related Transmission Pipeline Centerline & Attributes Class, HCA, Coating, Install Date Pressure Tests, Material Attributes, Valves, Casings Partial List: Taps, Crossings Operations – Compliance Related Leaks, Encroachment Records Cathodic Test Points Integrity Related HCA History, Subject Matter Expert Data Risk score results Other Aerial photographs

Data to be Loaded PODS MAOP Documentation Integrity Assessment Results Integrity Dig Reports Excavation Reports Crossing / Exposures Measurement Database Gas Quality Database Maintenance Pigging Reports Liquid / Solid Analysis Corrosion Coupons ROW Data

Future Enhancements Web based PODS data viewer Application Interfaces Link to Document Management Server Updates from Work Management Database (CMPlus) Updates from CP Compliance DB (CPDM) Updates from Encroachment Database HCA / Class Location analysis Alignment and Risk / Integrity Sheet Generation Field Data Collection Electronic collection of excavation data Link to PODS database Hydraulic Modeling

Some Learning Points for Atmos Energy “C&C” as Knowledgeable Consultant Saved Time PODS table extensions maintained compatibility Tables were added to fit “current state” data compilation formats (SME, CP TP) Try to keep key data providers & users informed Data scrubbing takes time Some “New” Tables were Re-designed before Use Add “Anomaly” table & Modify ILI tables to suit assessment need

Intrepid Screen

Pipe Facility Details Event List

Thank You