1. Nominations and Scheduling Colorado Interstate Gas Company Wyoming Interstate Company Cheyenne Plains Gas Pipeline Company Customer Advisory Group Update August 13, 2009

2. 2 Agenda The process for enhancements What we have completed What we are working on Topics for discussion Allocation System update Contacts Completed items last 12 months

3. 3 The Process for Enhancements Communication (1) Prioritization (2) Tracking and Execution (3) (a)Gathering and under- standing customer requests (b) Reporting timelines and status In-depth analysis, specifications, development, testing, training, etc. Getting customer priorities and evaluating available and needed resources

4. 4 What we have completed since Q4 2008 EPSQ in and through Pools (Phases 1 and 2)  Prevents changes made by Poolers and Shippers from causing transactions upstream or downstream of the Pool to be scheduled below EPSQ. Location Pool Monitoring Report  Automatically notifies Pooler if there are any mismatches between Pooler and Shipper Nominations. Transactional Tracking Enhancements  Added Reduction Reason Codes and Constraint Location on Shipper tracking screens. Enhanced Interface for Informational Postings (Phase 1)  New look and feel for Operationally Available Capacity, Index of Locations and Notices. See last slide for additional details on completed items. Current list of requested changes posted on our website www.cigco.com/CIGPortal Informational Postings > Other > Informational Look up > Customer Initiative

5. 5 What we are working on EPSQ in and through Pools (Phase 3) Enhancements to Reports EBB Web Site Enhancement (Phases 2 and 3)

6. 6 EPSQ in and through Pools This project is to address problems which cause pools to be scheduled below EPSQ (Elapsed Pro Rated Scheduled Quantity) Four development phases Each phase will be implemented independently

7. 7 EPSQ in and through Pools - by Phase Phase 1 – prevents poolers from reducing their nomination/confirmation below EPSQ in Cycles 3 and 4  Implemented 5/19/2009 Phase 2 – prevents pools from being scheduled below EPSQ due to CBL (Contract Balancing) or CPR (Confirming Party Reduction – used in pools) reduction reason codes  Implemented 7/14/2009 Phase 3 – will prevent capacity reductions from taking pool transactions below EPSQ  In test – planning Q3 implementation Phase 4 – will prevent underconfirmations by operators from reducing pool transactions below EPSQ  In development – planning Q4 implementation

8. 8 Enhancements to Reports Enhancements to the Location Pool Balancing Report and the Contract Routes Report  Adds reduction reason codes  In test (planning August implementation) New Flow Day Information Report  With reduction reason codes  Access directly from the Flow Day Information screen  Implemented August 11

9. 9 EBB Web Site Enhancement Status Many enhancements planned  Improved look and feel  Column sorting, dragging, pinning, filtering  Enhanced query and download features Phased migration  COMPLETED 6/9/2009 - Phase 1 (June 2009): Index of Customers, Operationally Available Capacity, Notices  Phase 2 (August 2009): Storage Field Inventory (Completed 7/24/2009), Transactional Reports (Planned 8/18/2009)  Phase 3 (October 2009): Unsubscribed Capacity (From Pipelines, From Expiring Contracts), Gas Quality  Phase 4 (November 2009): Posted Imbalances Feedback and questions

10. 10 EBB Web Site Enhancement Requests Proposal to address requests received so far: Address before Phase 3  Reduce default column widths for Operationally Available Capacity – Completed 8/6/2009  Notices Query not considering ALL dates – Target completion date of 8/31/2009 Address after Phase 4  Returning to current row when clicking the Back button from a detail page  Ability to save user column settings (order, width, sort, etc.)  Ability to adjust data grid height to accommodate different screen resolutions

11. 11 Topics for Discussion Headstation Pool enhancements Copy option at the One Receipt One Delivery level New items to prioritize

12. 12 Headstation Pool Enhancement Plan Development planned to begin after Phase 4 EPSQ Redesign main screen for ease of use and improved functionality Add features which will allow poolers to perform all necessary tasks from the pooling screen Add Status screens for both Supply and Market sides of the pool

13. 13 Copy Option Requested Item: Provide a copy option at the One Receipt One Delivery level to enable customers to copy and change fields for a new nomination. Proposal:  Will allow shipper to copy current nominations while in the One Receipt One Delivery screen  Will allow all fields to be edited

14. 14 New items to prioritize Add Cycle to Interconnect Operator Confirmation Report (report has cycle already - clarification needed) Follow Ranks in later cycles, even if they change (analyzing) Add latest-cycle grand totals to Flow day Information screen and report Report Requests  Make Contract Tracking Report available at the Entity Level  Add Ranks and Reduction Reason Codes to Contract Tracking Report  Simplify the Nominations Tracking Report in a manner similar to the Contract Tracking Report  Make all reports printable at once instead of requiring separate requests for each A customer priority of High, Medium, or Low will allow us to plan our resources accordingly.

15. 15 Customer Service Allocation System Roll-Out We are excited about the roll out of the first module of the new Xpress System – the online Allocation System As part of this roll out, the Customer Service group is presenting the consolidated Allocation Reports (Contract Allocation Report, Location Allocation Report, and NNT/TSB Report). These reports, in addition to a new Location Pool Report and Headstation Pool Report were developed based on requests from the Customer Advisory Group. There are detailed instructions for navigating through the new Allocation System under Informational Postings \Other \Training Materials \Xpress(new) Rollout. Kate Olson or Troy Jackson are eager to meet with each of you to introduce you to the new Xpress Allocation System. Please call them at 1-866-523-4243 to schedule a date and time that will work for you, and we will come to your offices for one-on-one training.

16. 16 Next call Next call planned for 1:30 pm November 12, 2009  Progress of current efforts  Plan for remaining items for current Xpress  Transition of focus to new system

17. 17 Contact information Marketing  Greg Ruben, Director  (719) 520-4870 Contracts and Capacity Release  Michelle ChristopherFredrica Stanley  (719) 520-3756(719) 520-3711  Tonie Stephens  (719) 520-4847 Nominations and Scheduling  John Driscoll, ManagerCurtis Claar, Solutions Team  (719) 520-4471(719) 667-7516 Customer Service (Allocations, Imbalances, & Invoicing)  Kate OlsonTroy Jackson  (719) 520-4784 (719) 520-4705  Mary Sue McNeal, Manager  (719) 520-3766 EBB Website Enhancements  Ray Jordan  (719) 520-4566

18. 18 Completed NAS Items Completed DateComments Added reduction reason codes to Flow Day Information screen and created Flow Day Information report. 8/11/2009See Notice #7817 Enforce EPSQ in and through Pools (Phase 2: Pool Balancing)7/14/2009See Notice #7785 Enhancement to Xpress to allow operators to view the Contract Number, Up/Dn Contract, Up/Dn DUNS, and Shipper DUNS for each transaction listed on the Interconnect Operator Confirmation screen for all confirmation levels (Contract, DUNS-Contract, Dual Entity). 6/10/2009See Notice #7744 Phase 1 of the new Informational Postings Enhanced Customer User Interface to provide shippers improved functionality when using the Operationally Available Capacity, Index of Customers, and Notices pages. 6/9/2009See Notice #7749 Enforce EPSQ in and through Pools (Phase 1: Pooler Nominations)5/19/2009See Notice #7717 Auto-population of C/O column in Location Pools2/24/2009See Notice #7596 Display associated constraint point with Pipeline reductions in the Shipper nomination tracking screen 2/18/2009See Notice #7590 Allow customers the option to hide transactions with zero quantities on the Location Pooling Confirmations screen. 2/18/2009See Notice #7590 Added Location Pool Monitoring Report to help identify mismatches before deadline11/25/2008See #7457 and #7460 Replaced Pooler reduction reason codes POM (Market Reduction) and POS (Supply Reduction) with PRR (Confirming Party Reduction at the Receipt) and PRD (Confirming Party Reduction at the Delivery). 10/28/2008See Notice #7388 Replaced the Shipper reduction reason code UPD (Update) with RVL(Re-evaluate) on the Shipper tracking screens. 10/21/2008See Notice #7365 Added Location Pool screen enhancements and Pool tracking screens10/14/2008See Notice #7328 Highlights of Nominations and Scheduling Changes Completed in the last 12 months