?052400NHO 
 
Northern Natural Gas Company
Extensive Access to Major Utilities and Industrials in the Upper Midwest 
Flexible Operations 
-Interconnections with 4 Major Pipelines in Market Area 
-Storage Capacity of 56 Bcf 
-Bi-Directional Flow Capabilities 
Over 85% of Revenues From Demand Charges 
95% of Market Area Capacity Contracted Through 2003 
No New Rate Case Until November, 2003 
 
1999 2000 1999 2000
 
Michigan
 
Storage
 
Northern Natural Pipeline
Enron Assets
 
Texas
Oklahoma
Kansas
Missouri
Nebraska
South 
Dakota
Wisconsin
Iowa
Illinois
 
North 
Dakota
Montana
Wyoming
New Mexico
 
Minnesota
 
 
 
Market Area Volumes
(BBtu/d)
2,173
2,202
 
2,775
3,483
 
December 
Full Year 
1999
1999
2000
2000