1. Transwestern Pipeline
Wyoming Oil and Gas Conservation Commission
June 28, 2005

2. Agenda Quick Overview of Transwestern Pipeline San Juan Expansion 2005
Phoenix Lateral Expansion
Q & A

3. Southern Union Company Organizational Structure
GE Corporation & Others
El Paso Citrus Holding
50%
50%
50%
Missouri Gas Energy
Panhandle Energy
CCE Holdings
PG Energy
100%
Panhandle Eastern Pipe Line
Trunkline Gas Company
50%
Transwestern
Citrus Corp.
New England Gas
Sea Robin Pipeline
Trunkline LNG
100%
Florida Gas Transmission
PEI Power
Southwest Gas Storage
FERC Regulated
Local Distribution Companies
Electric Co-Gen Plant

4. Operating Units 4

5. .500 1.235 1.21 .650 .263 .750 .560 LEGEND PIPELINE COMPRESSOR STATION
FIELD COMPRESSOR
All figures are Bcf/day

6. Transwestern Pipeline San Juan Expansion
375 MMcf/d increased San Juan lateral capacity
Added 72 miles of 36” pipeline and 16,500 incremental hp
Total cost - $150 million including interconnects
90% subscribed under 10-year contracts
Became operation in May 2005

7. San Juan Basin / Rockies Supply Capability (Bcf/d)
San Juan Plants to TW
I/B Link
Northwest Pipeline
TransColorado
Chaco plant
Blanco plant
Total

8. Confidential Phoenix LEGEND PIPELINE COMPRESSOR STATION
FIELD COMPRESSOR
PHOENIX LATERAL
Confidential

9. Project Key Elements
Filing process with FERC follows successful San Juan expansion process
All Shippers desire firm upstream rights (access to San Juan & Rockies production basins)
Phoenix customers require:
16 hour day delivery capability
Minimum 525 psig delivery pressure
ACC pre-approval of transport cost recovery

10. Timeline Q2 2007 In Service August-October 2005
Utilities file/receive ACC pre-approval
Contract contingencies removed
October 2006
Receive FERC Certificate
Construction Begins
July 2005
Expansion Agreements Executed
February 2005
Received initial shipper term sheets and began negotiations on expansion agreements
Began preliminary route design work
August 2005
Commence
Stakeholder Efforts, Including Open Houses
Q2 2007
In Service Q
Complete stakeholder process
Draft Environmental Impact Statement
File FERC applications
Order pipe

11. Information Website: Commercial Contacts:
Commercial Contacts:
Business Development
Kevin Hyatt
Lorraine Lindberg
Mark McConnell
Capacity Marketing
TK Lohman
Paul Y’Barbo