Spreadsheet: tracy_geaccone__40473__StatRept_RCRequest
Sheet: Sheet1

2000
Rate Case |  |  |  |  | Northern Natural Gas |  |  |  | [NAME] |  |  |  | FGT Pre-Expansion |  |  |  | FGT Incremental/Expansion |  |  |  | Northern Border Pipeline
 |  |  |  |  | Current |  | Previous |  | Current |  | Previous |  | Current |  | Previous |  | Current |  | Previous |  | Current (3) |  | Previous
 | Date Effective |  |  |  | 1999-11-01 00:00:00 |  | 1993-11-01 00:00:00 |  | 1996-11-01 00:00:00 |  | 1993-01-01 00:00:00
 | Total Rate Base |  |  | $ | 1064 | $ | 714 | $ | 398 | $ | 398 | $ |  | $ |  | $ |  | $ |  | $ |  | $
 | Long Term Debt |  |  | $ | 500 |  | 339 |  | n/a |  | n/a |  |  |  |  | $ |  | $ |  | $ |  | $
 | Allowed Return on Long Term Debt |  |  |  | 0.0765 |  | 0.0894 |  | n/a |  | n/a
 | Equity |  |  | $ | 703 |  | 393 |  | n/a |  | n/a |  |  |  |  | $ |  | $ |  | $ |  | $
 | Allowed Return on Equity |  |  |  | 0.1227 |  | 0.125 |  | 0.115 |  | 0.115
 | Average Depreciation Rate |  |  |  | 0.0108 |  | 0.0118 |  | 0.012 |  | 0.017
 | Throughput Volume - Transport (Tcf) |  |  |  | 1667 |  | 1661 |  | 334 |  | 334
 | Status of Rate Case |  |  |  | No Rate Case Prior to |  |  |  | No Rate Case Until
 |  |  |  |  | November, 2003 |  |  |  | November, 2006
1999
Rate Case |  |  |  |  | Northern Natural Gas |  |  |  | [NAME] |  |  |  | FGT Pre-Expansion |  |  |  | FGT Incremental/Expansion |  |  |  | Northern Border Pipeline
 |  |  |  |  | Current |  | Previous |  | Current |  | Previous |  | Current |  | Previous |  | Current |  | Previous |  | Current (3) |  | Previous
 | Date Effective |  |  |  | 11/1/93 |  | 5/1/89 |  | 11/1/96 |  | 1/1/93 |  | 11/1/97 |  | 1/1/92 |  | 3/1/97 |  | 3/1/95 |  | 3/1/96 |  | 12/1/92
 | Total Rate Base |  |  | $ | 714 | $ | 555 | $ | 398 | $ | 398 | $ | 275 | $ | 253 | $ | 978 | $ | 908 | $ | 696 | $ | 716
 | Long Term Debt |  |  | $ | 339 |  | n/a |  | n/a |  | n/a |  | n/a |  | n/a | $ | 626 | $ | 581 | $ | 390 | $ | 422
 | Allowed Return on Long Term Debt |  |  |  | 0.0894 |  | n/a |  | n/a |  | n/a |  | n/a |  | n/a |  | n/a |  | 0.0914 |  | 0.0807 |  | 0.0833
 | Equity |  |  | $ | 393 |  | n/a |  | n/a |  | n/a |  | n/a |  | n/a | $ | 352 | $ | 326 | $ | 475 | $ | 305
 | Allowed Return on Equity |  |  |  | 0.125 |  | n/a |  | 0.115 |  | 0.115 |  | 15.64% (1) |  | 0.115 |  | 13.66% (1) |  | 13.89% (1) |  | 0.12 |  | 0.1275
 | Average Depreciation Rate |  |  |  | 0.0118 |  | 0.0185 |  | 0.012 |  | 0.017 |  | 0.0213 |  | 0.025 |  | variable (2) |  | variable (2) |  | 2.5% (4) |  | 0.031
 | Throughput Volume - Transport (Tcf) |  |  |  | 1661 |  | 1525 |  | 334 |  | 334 |  | 272 |  | 329 |  | 168 |  | 146 |  | n/a |  | n/a
 | Status of Rate Case |  |  |  | New Rate Case Filed |  |  |  | No Rate Case Until |  |  |  | No Rate Case Until |  |  |  | No Rate Case Until |  |  |  | Filed May 1999;
 |  |  |  |  | May 1998; Discussions |  |  |  | November 2006 |  |  |  | October 2001 |  |  |  | October 2001 |  |  |  | Approval Pending
 |  |  |  |  | On-Going
(1) Pre-tax overall Return
(2) Straight line book depreciation of 4% is adjusted by levelisation factors yielding regulatory depreciation rates of negative 0.88% in 1995, negative 0.55% in 1996 and negative 0.86% in 1997.
(3) Operates under a cost of tariff.  Amounts are averages for the 12 month period ending December 31, 1998.
(4) Depreciation was reduced to 2.0% in December 1998 and, beginning in 2000, is scheduled to increase on an annual basis until it reaches 3.2% in 2002.