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TC Pipelines, LP

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FY2003 Annual Report · TC Pipelines, LP
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COVER_FINAL  3/31/04  12:05 PM  Page 1

TC PIPELINES, LP is a United States limited partnership that offers

investors stable cash flow and growth prospects. TC PipeLines owns a 

30 percent interest in Northern Border Pipeline Company and a 49 percent

interest in Tuscarora Gas Transmission Company. Both Northern Border

Pipeline and Tuscarora own interstate pipeline systems that transport 

western Canadian natural gas to growing natural gas consuming markets

in the midwestern United States and northern Nevada areas, respectively.

The Partnership is managed by its general partner, TC PipeLines GP, Inc., 

a wholly owned subsidiary of TransCanada Corporation, a leading North

American energy company. 

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2003 ANNUAL REPORT

DISCIPLINED STRATEGY

STEADY

PROGRESS

 
 
 
 
COVER_FINAL  3/31/04  12:05 PM  Page 2

2

1

2

Northern Border Pipeline

Tuscarora

OUR ASSETS

TC PIPELINES OWNERSHIP

ACQUIRED BY TC PIPELINES

COMMENCED OPERATIONS

ORIGINATES NEAR

TERMINATES NEAR
LENGTH (MILES)
RECEIPT CAPACITY (MMcfd

1)

EQUITY INCOME – TC PIPELINES’ SHARE
(MILLIONS OF DOLLARS)

CASH FLOW – TC PIPELINES’ SHARE
(MILLIONS OF DOLLARS)

Northern Border Pipeline

30%
May 28, 1999

1982
Port of Morgan, MT
North Hayden, IN
1,249
2,370

42.1

42.8

44.5

38.1

45

30

15

0

00

01

02

03

45

40.5

42.9

49.2

46.2

30

15

0

Tuscarora

49%
September 1, 2000

1995
Malin, OR
Wadsworth, NV
240
190

9

6

3

0

9

6

3

0

5.3

4.7

3.6

0.9

00

01

02

03

6.2

4.6

2.4

1.5

1 Millions of cubic feet per day.

00

01

02

03

00

01

02

03

Financial Highlights 1 Letter to Unitholders 2

Form 10-K 3

Financial Statements F-1

1

TC PIPELINES, LP

110 Turnpike Road, Suite 203, Westborough, Massachusetts, US  01581  Telephone (508) 871-7046  Facsimile (508) 871-7047

450 – First Street SW, Calgary, Alberta, Canada  T2P 5H1  Telephone (877) 290-2772  Facsimile (403) 920-2457

BOARD OF DIRECTORS 
OF THE GENERAL PARTNER 
OF TC PIPELINES, LP

EXECUTIVE OFFICERS 
OF THE GENERAL PARTNER 
OF TC PIPELINES, LP

Albrecht W.A. Bellstedt
Executive Vice-President, Law and General Counsel

Ronald J. Turner
President and Chief Executive Officer

TransCanada Corporation

Calgary, Alberta

Kristine L. Delkus
Vice-President, Law, Power and Regulatory

TransCanada Corporation

Calgary, Alberta

Russell K. Girling
Executive Vice-President, Corporate Development 

and Chief Financial Officer

TransCanada Corporation

Calgary, Alberta

Robert A. Helman (2)
Partner

Mayer, Brown, Rowe & Maw

Chicago, Illinois

Jack F. Jenkins-Stark (2)
Vice-President, Business Operations and Technology

Itron Inc.

Alameda, California

David L. Marshall (1)
Retired Vice-Chairman and Chief Financial Officer

The Brinks Company

Incline Village, Nevada

Ronald J. Turner
Executive Vice-President, Gas Transmission

TransCanada Corporation

Calgary, Alberta

Russell K. Girling
Chief Financial Officer

Steven D. Becker
Vice-President, Business Development

Donald R. Marchand
Vice-President and Treasurer

Ronald L. Cook
Vice-President, Taxation

Max Feldman
Vice-President

Wendy L. Hanrahan
Vice-President

Amy W. Leong
Controller

Maryse C. St.-Laurent
Secretary

(1) Chair, Audit Committee

(2) Member, Audit Committee

Investor Relations Telephone (877) 290-2772  Facsimile (403) 920-2457 E-mail: investor_relations@tcpipelineslp.com

Internet Site www.tcpipelineslp.com

K-1 Information Telephone (877) 699-1091

Stock Exchange Listing NASDAQ Stock Market: TCLP

Auditors KPMG LLP, Calgary, Alberta

Transfer Agent Mellon Investor Services LLC, Ridgefield Park, New Jersey  Telephone (800) 756-3353

Please recycle         March 2004   Printed in Canada 

Designed and produced by smith + associates   www.smithandassoc.com

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 1

1

OUR GOAL is to deliver stable, sustainable cash flows to our unitholders and to find opportunities to increase

cash distributions while maintaining our low-risk profile.

OUR  STRATEGY is  to  focus  on  natural  gas  transmission  assets  that  connect  supply  to  growing  natural  gas

consuming markets. We focus on assets that have organic growth potential. We leverage TransCanada’s expertise in the

natural gas transmission industry. We are disciplined in our approach and strive to maintain a strong financial position.

FINANCIAL HIGHLIGHTS

Year ended December 31 

(millions of dollars, except per unit amounts)

Income Statement

Net income

Net income per unit

Cash Flow

2003

2002

2001

2000

48.0

2.63

$

45.5

2.50

$

43.5

2.40

$

37.2

2.08

$

Cash generated from operations

Cash distributions paid

Cash distributions declared per unit

49.6

39.4

52.1

37.4

42.9

35.2

40.3

32.6

$ 2.175

$ 2.075

$ 1.975

$ 1.850

Balance Sheet

Total assets

Long-term debt

Partners’ equity

288.1

5.5

282.0

286.0

11.5

273.9

288.7

21.5

266.7

277.5

21.5

255.4

Net Income
(dollars per unit)

Cash Distributions
(dollars per unit)

2.40

2.50

2.63

2.08

1.975

1.850

2.075 2.175

0

0

00

01

02

03

00

01

02

03

Common units of TC PipeLines are listed on the NASDAQ Stock Market and trade under the symbol “TCLP”.

Cautionary Statement Regarding Forward-Looking Information  This annual report includes forward-looking statements regarding future events and our future financial

performance. All forward-looking statements are based on our beliefs as well as assumptions made by and information currently available to us. Words such as “believes,”

“expects,” “intends,” “forecasts,” “projects,” and similar expressions, identify forward-looking statements within the meaning of the Securities Litigation Reform Act. These

statements reflect our current views with respect to future events and are subject to various risks, uncertainties and assumptions which we discuss in detail in our Form 10-K

for the year ended December 31, 2003 and other filings made with the SEC. If one or more of these risks or uncertainties materialize, or if the underlying assumptions prove

incorrect, actual results may vary materially from those described in the forward-looking statement.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 2

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We are pleased to report that TC PipeLines has achieved another year of solid financial performance. Our success in

delivering stable cash distributions to shareholders is the result of the sound business fundamentals underlying our 30%

interest in Northern Border Pipeline and our 49% interest in Tuscarora Gas Transmission Company, as well as our disciplined

approach to growth. TC PipeLines continues to focus on natural gas transmission assets that connect supply to growing

natural gas consuming markets. 

LETTER TO UNITHOLDERS

TC PipeLines expects that North
American natural gas demand will
continue to grow in large part
due to the needs of the power
generation sector. While we see
signs that the Western Canadian
Sedimentary Basin is maturing, this

increase in demand together with the strong competitive
position of both Northern Border Pipeline and Tuscarora
makes us confident that these pipelines will continue
to be attractive to shippers. This was evidenced by the
successful recontracting by Northern Border Pipeline
of approximately 40% of its capacity in 2003.

This successful recontracting, together with additional
earnings and cash flow resulting from Tuscarora’s 2002
expansion, allowed TC PipeLines to increase 2003 cash
distributions paid to shareholders by almost 5%, marking
our fourth distribution increase since we began operations
in May 1999. In addition, we reduced debt outstanding
from $11.5 million to $5.5 million, continuing our
approach of maintaining a strong balance sheet.

Looking forward, approximately 30% of Northern Border’s
capacity will come up for renewal by the end of 2004,
continuing a trend we see emerging of an annual
recontracting process. We continue to view Northern
Border Pipeline as one of the most competitive routes to
transport natural gas out of Western Canada and believe
that Northern Border Pipeline is well positioned to replace
those expiring contracts in a manner consistent with its
current toll levels. In addition, Northern Border Pipeline 
is making changes to its capital structure to appropriately
reflect the current business environment.

As for Tuscarora, plans are underway for an expansion to
meet increased demand in the Reno area. The expansion
will include the addition of a new gas turbine driven
compressor at Likely, California and the installation of a
new reciprocating compressor at Wadsworth. The new
facilities, backed by 15 year firm contracts, will add
additional capacity of about 50 MMcfd and are expected
to come onstream in November, 2005. This expansion
follows major expansions of the Tuscarora system in both
2001 and 2002, and demonstrates the opportunity for
organic growth for TC PipeLines assets.

In summary, we believe our existing assets are well
positioned and are generating solid cash flows. TC PipeLines
will continue to pursue opportunities to grow in a disciplined
manner by expanding existing facilities or through
acquisitions that create long term value for our unitholders.

On behalf of TC PipeLines, LP

Ronald J. Turner
President and Chief Executive Officer
TC PipeLines GP, Inc.

March 12, 2004

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 3

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

F O R M 10-K

[X] Annual Report Pursuant to Section 13 or 15 (d) of the 

Securities Exchange Act of 1934
For the fiscal year ended December 31, 2003
or

[  ] Transition Report Pursuant to Section 13 or 15(d) of the 

Securities Exchange Act of 1934

Commission file number: 000-26091

TC PIPELINES, LP
(Exact name of registrant as specified in its charter)

DELAWARE
(State or other jurisdiction
of incorporation or organization)

52-2135448
(I.R.S. Employer
Identification No.)

110 TURNPIKE ROAD, SUITE 203

WESTBOROUGH, MASSACHUSETTS  01581
(Address of principal executive offices) (zip code)
Registrant’s telephone number, including area code: 508-871-7046

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Name of each exchange on which registered

NONE

Securities registered pursuant to Section 12(g) of the Act:
Title of class

COMMON UNITS REPRESENTING LIMITED PARTNER INTERESTS

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [ ]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein,
and  will  not  be  contained, to  the  best  of registrant's  knowledge, in  definitive  proxy  or  information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [X]

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act) Yes [X] No [ ]

Aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant, as at June
30, 2003, was approximately $350.1 million.

As of February 23, 2004, there were 16,563,564 of the registrant’s common units outstanding.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 4

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T C   P I P E L I N E S ,   L P

TC PIPELINES, LP

TABLE OF CONTENTS

PART I

Item 1.
Item 2.
Item 3.
Item 4.

PART II

Business
Properties
Legal Proceedings
Submission of Matters to a Vote of Security Holders

Selected Financial Data

Item 5. Market for Registrant’s Common Units and Related Security Holder Matters
Item 6.
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures about Market Risk
Financial Statements and Supplementary Data
Item 8.
Item 9.
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Item 9A. Controls and Procedures

PART III

Item 10. Directors and Executive Officers of the General Partner
Item 11.
Item 12.

Executive Compensation
Security Ownership of Certain Beneficial Owners and 
Management and Related Security Holder Matters

Item 13. Certain Relationships and Related Transactions
Item 14.

Principal Accountants Fees and Services

PART IV

Item 15.

Exhibits, Financial Statement Schedules and Reports on Form 8-K

All amounts are stated in United States dollars unless otherwise indicated.

Page No.

5
16
17
17

18
20
20
45
45
45
45

46
49

50
51
52

53

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PA RT   I

Item 1. Business

BUSINESS OF TC PIPELINES, LP

TC  PipeLines, LP  was  formed  in  1998  as  a  Delaware  limited  partnership  to  acquire, own  and  participate  in  the
management  of United  States-based  pipeline  assets. TC  PipeLines, LP  and  its  subsidiary  limited  partnerships,
TC PipeLines Intermediate Limited Partnership and TC Tuscarora Intermediate Limited Partnership are collectively
referred to herein as “TC PipeLines” or “the Partnership.” TC PipeLines GP, Inc., an indirect wholly owned subsidiary
of TransCanada  PipeLines  Limited, which  is  a  wholly  owned  subsidiary  of TransCanada  Corporation  (collectively
referred to herein as TransCanada), is the general partner of the Partnership.

The  Partnership  owns  a  30%  general  partner  interest  in  Northern  Border  Pipeline  Company. The  remaining  70%
general partner interest in Northern Border Pipeline is held by Northern Border Partners, L.P., a publicly traded limited
partnership that is controlled by affiliates of Enron Corp. TransCanada holds a minority general partner interest in
Northern Border Partners which entitles it to 12.25% of the voting power of Northern Border Pipeline.

TC  PipeLines  also  owns  a  49%  general  partner  interest  in  Tuscarora  Gas  Transmission  Company. The  Partnership
acquired this interest from TCPL Tuscarora Ltd., an indirect subsidiary of TransCanada, in September 2000.

At December 31, 2003, the Partnership had 16,563,564 common units outstanding, of which 11,890,694 were held by
the public, 2,800,000 were held by an affiliate of the general partner and 1,872,870 were held by the general partner.

TransCanada, by virtue of its ownership of the Partnership’s general partner, holds an aggregate 2% general partner
interest in the Partnership. The general partner also owns 1,872,870 common units and 936,436 subordinated units and
receives  incentive  distributions  if quarterly  cash  distributions  on  the  common  and  subordinated  units  exceed  levels
specified  in  the  partnership  agreement  (see  Item  5. “Market  for  Registrant’s  Common  Units  and  Related  Security
Holder Matters”).

The  Partnership’s  30%  general  partner  interest  in  Northern  Border  Pipeline  and  49%  general  partner  interest  in
Tuscarora represent its only material assets.

BUSINESS OF NORTHERN BORDER PIPELINE COMPANY

General
Northern  Border  Pipeline  Company  is  a  general  partnership  formed  in  1978. Northern  Border  Pipeline’s  general
partners are TC PipeLines, LP and Northern Border Partners, L.P., both of which are publicly traded partnerships. Each
of TC PipeLines and Northern Border Partners holds its interest in Northern Border Pipeline, representing 30% and
70% of voting power, respectively, through a subsidiary limited partnership. The general partner of TC PipeLines and
its subsidiary limited partnership, TC PipeLines GP, Inc., is an indirect subsidiary of TransCanada. The general partners
of Northern  Border  Partners  and  its  subsidiary  limited  partnership  are  Northern  Plains  Natural  Gas  Company
(Northern Plains) and Pan Border Gas Company, both subsidiaries of Enron Corp., and Northwest Border Pipeline
Company, a subsidiary of TransCanada.

Northern  Border  Pipeline  owns  an  interstate  pipeline  system  that  transports  natural  gas  from  the  Montana-
Saskatchewan  border  to  natural  gas  markets  in  the  midwestern  United  States. This  pipeline  system  connects  with
multiple  pipelines  that  provide  shippers  with  access  to  the  various  natural  gas  markets  served  by  those  pipelines.
in  the  year  ended  December  31, 2003, Northern  Border  Pipeline  transported
TC PipeLines  estimates  that,

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 6

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T C   P I P E L I N E S ,   L P

approximately  22%  of the  total  amount  of natural  gas  imported  from  Canada  to  the  United  States. Over  the  same
period, approximately 88% of the natural gas transported was produced in the Western Canadian Sedimentary Basin
located in the provinces of Alberta, British Columbia and Saskatchewan.

Northern  Border  Pipeline  transports  gas  for  shippers  under  a  tariff regulated  by  the  Federal  Energy  Regulatory
Commission (FERC). The tariff specifies the maximum and minimum transportation rates and the general terms and
conditions  of transportation  service  on  the  pipeline  system. Northern  Border  Pipeline’s  revenues  are  derived  from
agreements  for  the  receipt  and  delivery  of gas  at  points  along  the  pipeline  system  as  specified  in  each  shipper’s
individual transportation contract. Northern Border Pipeline does not own the gas that it transports, and therefore it
does  not  assume  natural  gas  commodity  price  risk  for  quantities  transported. Any  exposure  to  commodity  risk  for
imbalances  on  Northern  Border  Pipeline’s  system  that  may  result  from  under  or  over  deliveries  to  customers  or
interconnecting pipelines is either recovered through provisions in Northern Border Pipeline’s tariff or is immaterial.
Northern Border Pipeline owns the line pack, which is the amount of gas necessary to maintain efficient operations of
the pipeline. Northern Border Pipeline’s shippers are responsible to provide fuel gas necessary for the operation of gas
compressor stations.

Northern Border Pipeline’s management is overseen by a four-member management committee. Three representatives
are  designated  by  Northern  Border  Partners, with  each  of its  general  partners  selecting  one  representative  and  one
representative  is  designated  by  TC  PipeLines. Voting  power  on  the  management  committee  is  allocated  among
Northern  Border  Partners’ three  representatives  in  proportion  to  their  general  partner  interests  in  Northern  Border
Partners. As  a  result, the  70%  voting  power  of Northern  Border  Partners’ three  representatives  on  the  management
committee is allocated as follows: 35% to the representative designated by Northern Plains, 22.75% to the representative
designated by Pan Border and 12.25% to the representative designated by Northwest Border. Northern Plains and Pan
Border are subsidiaries of Enron. Therefore, Enron controls 57.75% of the voting power of the management committee
and has the right to select two of the members. On December 2, 2001, Enron filed a voluntary petition for Chapter 11
protection in bankruptcy court. On September 25, 2003, a motion by Enron to transfer Enron’s interests in, among
other entities, Northern Plains and Pan Border to CrossCountry Energy, a new pipeline operating entity, was approved.
See  Item  7. “Management’s  Discussion  and  Analysis  of Financial  Condition  and  Results  of Operations  –  Results  of
Operations of Northern Border Pipeline Company – The Impact Of Enron’s Chapter 11 Filing On Northern Border
Pipeline’s Business.”

The  Northern  Border  pipeline  system  is  operated  by  Northern  Plains  pursuant  to  an  operating  agreement. As  of
December 31, 2003, Northern Plains employed approximately 216 individuals located at its headquarters in Omaha,
Nebraska  and  at  various  locations  along  the  pipeline  route  and  also  used  employees  and  information  technology
systems of its affiliates to provide its services. Northern Plains’ employees are not represented by any labor union and
are not covered by any collective bargaining agreements.

The Northern Border Pipeline System
Northern Border Pipeline owns a 1,249-mile interstate pipeline system that transports natural gas from the Montana-
Saskatchewan  border  near  Port  of Morgan, Montana  to  natural  gas  markets  in  the  midwestern  United  States.
Construction  of the  pipeline  was  initially  completed  in  1982. The  Northern  Border  pipeline  system  was  expanded
and/or extended in 1991, 1992, 1998 and 2001. The Northern Border pipeline system connects directly and through
multiple pipelines to various natural gas markets in the United States.

The  Northern  Border  pipeline  system  consists  of 822  miles  of 42-inch  diameter  pipe  from  the  Canadian  border  to
Ventura, Iowa capable of transporting a total of 2,374 million cubic feet per day (mmcfd); 30-inch diameter pipe and
36-inch  diameter  pipe, each  approximately  147  miles  in  length, capable  of transporting  1,484  mmcfd  in  total  from
Ventura, Iowa to Harper, Iowa; 226 miles of 36-inch diameter pipe and 19 miles of 30-inch diameter pipe capable of
transporting 844 mmcfd from Harper, Iowa to Manhattan, Illinois (Chicago area); and 35 miles of 30-inch diameter

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 7

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pipe capable of transporting 545 mmcfd from Manhattan, Illinois to a terminus near North Hayden, Indiana. Along the
pipeline there are 16 compressor stations with total rated horsepower of 499,000 and measurement facilities to support
the  receipt  and  delivery  of gas  at  various  points. Other  facilities  include  four  field  offices  and  a  microwave
communication system with 50 tower sites.

The Northern Border pipeline system has pipeline access to natural gas reserves in the Western Canadian Sedimentary
Basin in the provinces of Alberta, British Columbia and Saskatchewan in Canada, domestic natural gas produced within
the  Williston  Basin  and  synthetic  gas  produced  at  the  Dakota  Gasification  plant  in  North  Dakota. In  addition, the
pipeline is capable of physically receiving natural gas at two locations near Chicago. At its northern end, the pipeline
system’s gas supplies are received through an interconnection with Foothills Pipe Lines (Sask.) Ltd. system in Canada.
The  Foothills  system, owned  by  TransCanada, is  connected  to  TransCanada’s Alberta  system  and  the  pipeline  system
owned by Transgas Limited in Saskatchewan. Also at the north end, the pipeline system connects to a domestic natural
gas  gathering  system  owned  by  Omimex  Ltd. Corporation. In  North  Dakota, the  Northern  Border  pipeline  system
connects with facilities of Northern Natural Gas Company at Buford, which facilities in turn are connected to Williston
Basin  Interstate  Pipeline  and  the  gathering  system  owned  by  Bear  Paw  Energy, LLC, a  wholly  owned  subsidiary  of
Northern Border Partners. In December 2003, an interconnection with a newly constructed pipeline owned by Williston
Basin  Interstate  Pipeline  near  Manning, North  Dakota  was  placed  in  service. The  initial  design  capacity  of the
interconnect  facilities  is  200  mmcfd. The  pipeline, with  an  initial  design  capacity  of 80  mmcfd, was  constructed  to
transport natural gas from coal bed and conventional natural gas supplies in the Powder River Basin of northeastern
Wyoming and southeastern Montana as well as conventional supplies in the Rocky Mountain area. Other locations in
North  Dakota  where  Northern  Border  Pipeline  can  receive  gas  are  interconnections  with  Williston  Basin  Interstate
Pipeline at Glen Ullin and Amerada Hess Corporation at Watford City and facilities of Dakota Gasification Company at
Hebron. Near its terminus, the pipeline system is capable of physically receiving natural gas from Northern Illinois Gas
Company  at  Troy  Grove, Illinois  and  from  Midwestern  Gas  Transmission  Company, a  wholly  owned  subsidiary  of
Northern Border Partners, at Channahon, Illinois. For the year ended December 31, 2003, of the natural gas transported
on the Northern Border pipeline system, approximately 88% was produced in Canada, approximately 5% was produced
by the Dakota Gasification plant and approximately 6% was produced in the Williston Basin and 1% from other sources.

Interconnects
The  Northern  Border  pipeline  system  connects  with  multiple  pipelines  of various  interstate, intrastate  and  local
distribution companies, as well as with end-users. These interconnects provide its shippers with access to the various
natural gas markets served by those pipelines. The larger interconnections are with the pipeline facilities of:

• Northern  Natural  Gas  Company  at Ventura, Iowa  as  well  as  multiple  smaller  interconnections  in  South  Dakota,

Minnesota and Iowa;

• Natural Gas Pipeline Company of America at Harper, Iowa;
• MidAmerican Energy Company at Iowa City and Davenport, Iowa and Cordova, Illinois;
• Alliant Power Company at Prophetstown, Illinois;
• Northern Illinois Gas Company at Troy Grove and Minooka, Illinois;
• Midwestern Gas Transmission Company near Channahon, Illinois;
• ANR Pipeline Company near Manhattan, Illinois;
• Vector Pipeline L.P. in Will County, Illinois;
• Guardian Pipeline, L.L.C., an affiliate of Northern Border Partners, in Will County, Illinois;
• The Peoples Gas Light and Coke Company near Manhattan, Illinois; and
• Northern Indiana Public Service Company near North Hayden, Indiana at the terminus of the pipeline system.

Several  market  centers, where  natural  gas  transported  on  the  Northern  Border  pipeline  system  is  sold, traded  and
received for transport to significant consuming markets in the Midwest and to interconnecting pipeline facilities, have
developed  on  the  Northern  Border  pipeline  system. The  largest  of these  market  centers  is  at  the  Ventura, Iowa

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 8

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T C   P I P E L I N E S ,   L P

connection with Northern Natural Gas Company. Two other market center locations are the Harper, Iowa connection
with  Natural  Gas  Pipeline  Company  of America  and  the  multiple  interconnects  in  the  Chicago  area  that  include
connections with Northern Illinois Gas Company, The Peoples Gas Light and Coke Company and Northern Indiana
Public Service Company, as well as four interstate pipelines.

Shippers
The  Northern  Border  pipeline  system  serves  more  than  40  firm  transportation  shippers  with  diverse  operating  and
financial profiles. Based upon shippers’ contractual obligations, as of December 31, 2003, 94% of the firm capacity is
contracted  by  producers  and  marketers. The  remaining  firm  capacity  is  contracted  primarily  by  local  distribution
companies  (5%), and  interstate  pipelines  (1%). As  of December  31, 2003, the  termination  dates  of these  contracts
ranged from March 31, 2004 to December 21, 2013, and the weighted average contract life, based upon contractual
obligations, was approximately three and one-third years. All of Northern Border Pipeline’s capacity was under contract
through  December  31, 2003  and, assuming  no  extensions  of existing  contracts  or  execution  of new  contracts,
approximately  70%  and  59%  is  under  contract  through  December  31, 2004  and  2005  respectively. See  Item  7.
“Management’s Discussion and Analysis of Financial Condition and Results of Operations – Results of Operations of
Northern Border Pipeline Company – Overview.”

Northern  Border  Pipeline’s  shippers  may  change  throughout  the  year  as  a  result  of its  shippers  utilizing  Northern
Border Pipeline’s capacity release provisions that allow them to release all or part of their capacity to other shippers,
either permanently for the full term of their contract or temporarily. Under the terms of Northern Border Pipeline’s
tariff, a temporary capacity release does not relieve the original contract shipper from its payment obligations if the
replacement shipper fails to pay.

For the year ended December 31, 2003, BP Canada Energy Marketing Corp. (BP Canada), EnCana Marketing U.S.A.
Inc. (EnCana), and Pan Alberta Gas (U.S.) Inc. (Pan-Alberta) collectively accounted for approximately 41% of Northern
Border Pipeline’s revenues. As of December 31, 2003, Northern Border Pipeline’s three largest shippers were BP Canada,
EnCana  and  Cargill  Incorporated  who  are  obligated  for  approximately  21%, 19%  and  9%, respectively, of the
contracted firm capacity. In July 2003, Cargill Incorporated completed the assignment of all the firm capacity formerly
held by Mirant Americas Energy Marketing, LP, which extends for terms into 2006 and 2008. Approximately half of the
capacity contracted to BP Canada and EnCana is due to expire by November 1, 2004. During 2003, all of the contracted
capacity  due  to  expire  by  November  1, 2003, of which  Pan-Alberta  held  approximately  20%  was  recontracted  with 
10 shippers. See Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations –
Results of Operations of Northern Border Pipeline Company – Overview.”

Demand for Transportation Capacity
Northern  Border  Pipeline’s  long-term  financial  condition  is  dependent  on  the  continued  availability  of economic
western Canadian natural gas supplies for import into the United States. Natural gas reserves may require significant
capital expenditures by others for exploration and development drilling and the installation of production, gathering,
storage, transportation  and  other  facilities  that  permit  natural  gas  to  be  produced  and  delivered  to  pipelines  that
interconnect with the interstate pipelines’ systems. Prices for natural gas, the currency exchange rate between Canada and
the  United  States, regulatory  limitations  or  the  lack  of available  capital  for  these  projects  could  adversely  affect  the
development of additional reserves and production, gathering, storage and pipeline transmission of western Canadian
natural  gas  supplies. Increased  Canadian  consumption  of natural  gas  related  to  the  extraction  process  for  oil  sands
projects as well as restrictions on gas production to protect oil sand reserves could also impact supplies of natural gas for
export. Additional pipeline export capacity also could accelerate depletion of these reserves. Furthermore, the availability
of export capacity could also affect the demand or value of the transport on the Northern Border pipeline system.

Northern Border Pipeline’s business also depends on the level of demand for natural gas in the markets the Northern
Border  pipeline  system  serves. The  volumes  of natural  gas  delivered  to  these  markets  from  other  sources  affect  the

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demand for both the natural gas supplies and the use of the Northern Border pipeline system. Demand for natural gas
to serve other markets also influences the ability and willingness of shippers to use the Northern Border pipeline system
to meet demand in the markets that it serves.

A variety of factors could affect the demand for natural gas in the markets that the Northern Border pipeline system
serves. These factors include:

economic conditions;
fuel conservation measures;
alternative energy requirements and prices;

•
•
•
• gas storage inventory levels;
•
• government regulation; and 
•

climatic conditions;

technological advances in fuel economy and energy generation devices.

Interstate pipelines’ primary exposure to market risk occurs at the time existing transportation contracts expire and are
subject  to  renegotiation. A  key  determinant  of the  value  that  customers  can  realize  from  firm  transportation  on  a
pipeline is the basis differential, or market price spread, between two points on the pipeline. The difference in natural
gas prices between the points along the pipeline where gas enters and where gas is delivered represents the gross margin
that a customer can expect to achieve from holding transportation capacity at any point in time. This margin and its
variability become important factors in determining the transportation rate customers are willing to pay when they
renegotiate  their  transportation  contracts. The  basis  differential  between  markets  can  be  affected  by  trends  in
production, available capacity, storage inventories, weather and general market demand in the respective areas.

Throughput on the Northern Border pipeline system may experience seasonal fluctuations depending upon the level of
winter heating load demand or summer electric generation usage in the markets it serves. However, since approximately
98%  of Northern  Border  Pipeline’s  expected  revenue  is  attributable  to  demand  charges, Northern  Border  Pipeline’s
revenues and cash flows are not impacted materially by such seasonal throughput variations.

TC  PipeLines  cannot  predict  whether  these  or  other  factors  will  have  an  adverse  effect  on  demand  for  use  of the
Northern Border pipeline system or how significant such adverse effect could be.

Interstate Pipeline Competition
Northern  Border  Pipeline  competes  with  other  pipeline  companies  that  transport  natural  gas  from  the  Western
Canadian  Sedimentary  Basin  or  that  transport  natural  gas  to  end-use  markets  in  the  midwest. Northern  Border
Pipeline’s competitive position is affected by the availability of Canadian natural gas for export, the availability of other
sources  of natural  gas  and  demand  for  natural  gas  in  the  United  States. Demand  for  transportation  services  on  the
Northern Border pipeline system is affected by natural gas prices, the relationship between export capacity from and
production in the Western Canadian Sedimentary Basin and natural gas shipped from producing areas in the United
States. Shippers  of natural  gas  produced  in  the  Western  Canadian  Sedimentary  Basin  also  have  other  options  to
including  transportation  on  the  Alliance  Pipeline, on
transport  Canadian  natural  gas  to  the  United  States,
TransCanada’s  pipeline  system  through  various  interconnects  with  U.S. interstate  pipelines, including  Viking  Gas
Transmission Company which is owned by Northern Border Partners, or to markets on the West Coast.

The Alliance Pipeline competes directly with Northern Border Pipeline in the transportation of natural gas from the
Western Canadian Sedimentary Basin to the Chicago area. Because it transports liquids-rich natural gas, the Alliance
Pipeline has no interconnections with other pipelines upstream of liquids extraction facilities located near Chicago. This
contrasts with the Northern Border pipeline system, which serves various markets through interconnections with other
pipelines along its route. The Chicago market hub has absorbed the new supply from Alliance Pipeline as incremental
pipeline capacity has been developed to transport natural gas from the Chicago area to other market regions.

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In addition, Northern Border Pipeline competes in its markets with other interstate pipelines that provide access to
other supply basins. Northern Border Pipeline’s major deliveries into Northern Natural Gas at Ventura, Iowa compete
with  gas  supplied  from  the  Rockies, and  mi-continent  regions. Northern  Border  Pipeline  also  competes  with  these
supply  basins  at  its  delivery  interconnect  with  Natural  Gas  Pipeline  at  Harper, Iowa. In  the  Chicago  area, Northern
Border  Pipeline  competes  with  many  interstate  pipelines  that  transport  gas  from  the  Gulf Coast, mid-continent,
Rockies and western Canada.

FERC Regulation
Northern Border Pipeline is subject to extensive regulation by the FERC as a “natural gas company” under the Natural
Gas Act. Under the Natural Gas Act and the Natural Gas Policy Act, the FERC has jurisdiction with respect to virtually
all aspects of Northern Border Pipeline’s business, including:

transportation of natural gas;
rates and charges;
construction of new facilities;
extension or abandonment of service and facilities;
accounts and records;

•
•
•
•
•
• depreciation and amortization policies;
•
•

the acquisition and disposition of facilities; and 
the initiation and discontinuation of services.

Where required, Northern Border Pipeline holds certificates of public convenience and necessity issued by the FERC
covering  its  facilities, activities  and  services. Under  Section  8  of the  Natural  Gas  Act, the  FERC  has  the  power  to
prescribe the accounting treatment for items for regulatory purposes. Northern Border Pipeline’s books and records
may be periodically audited by the FERC under Section 8. Northern Border Pipeline was notified in November 2002
that it was one of the companies selected by the FERC to undergo an industry-wide audit of FERC-assessed annual
charges. The overall audit objective was to determine compliance with FERC accounting requirements and regulations
as they relate to the calculation and assessment of annual charges by validating the accuracy of the data filed annually
with the FERC. The audit covered the period of January 1, 2001 to December 31, 2001. On April 10, 2003, the FERC
issued its final report that found Northern Border Pipeline was in compliance.

The FERC regulates the rates and charges for transportation in interstate commerce. Natural gas companies may not
charge rates exceeding rates judged just and reasonable by the FERC. Generally, rates are based on the cost of service
including recovery of and a return on the pipeline’s actual historical cost investment. In addition, the FERC prohibits
natural  gas  companies  from  unduly  preferring  or  unreasonably  discriminating  against  any  person  with  respect  to
pipeline  rates  or  terms  and  conditions  of service. Some  types  of rates  may  be  discounted  without  further  FERC
authorization and rates may be negotiated subject to FERC approval. The rates and terms and conditions for Northern
Border Pipeline’s service are found in its FERC approved tariff.

Transportation  rates  are  established  periodically  in  FERC  proceedings  known  as  rate  cases. Under  Northern  Border
Pipeline’s tariff, Northern Border Pipeline is allowed to charge for its services on the basis of stated transportation rates
established in its 1999 rate case. Northern Border Pipeline may also provide services under negotiated and discounted
rates. Firm  shippers  that  contract  for  the  stated  transportation  rate  are  obligated  to  pay  a  monthly  demand  charge,
regardless of the amount of natural gas they actually transport, for the term of their contracts. Approximately 98% of
the revenue generated is attributed to demand charges. The remaining 2% of the agreed upon revenue level is attributed
to commodity charges based on the volumes of gas actually transported.

Under the terms of settlement in Northern Border Pipeline’s 1999 rate case, neither Northern Border Pipeline’s existing
shippers nor Northern Border Pipeline can seek rate changes until November 1, 2005, at which time Northern Border

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Pipeline must file a rate case. Prior to this rate case, Northern Border Pipeline will not be permitted to increase rates if
costs increase, nor will Northern Border Pipeline be required to reduce rates based on cost savings. As a result, Northern
Border  Pipeline’s  earnings  and  cash  flow  will  depend  on  future  costs, contracted  capacity, the  volumes  of gas
transported and its ability to recontract capacity at acceptable rates.

Until new depreciation rates are approved by FERC, Northern Border Pipeline continues to depreciate its transmission
plant  at  the  FERC  approved  annual  depreciation  rate. Northern  Border  Pipeline’s  annual  depreciation  rate  on
transmission plant in service is 2.25%. In order to avoid a decline in transportation rates set in future rate cases as a
result of accumulated depreciation, Northern Border Pipeline must maintain or increase its rate base by acquiring or
constructing assets that replace or add to existing pipeline facilities or by adding new facilities.

In Northern Border Pipeline’s 1995 rate case, the FERC addressed the issue of whether the federal income tax allowance
included in Northern Border Pipeline’s proposed cost of service was reasonable in light of previous FERC rulings. In
those rulings, the FERC held that an interstate pipeline is not entitled to a tax allowance for income attributable to
limited partnership interests held by individuals. The settlement of Northern Border Pipeline’s 1995 rate case provided
that until at least December 2005, Northern Border Pipeline could continue to calculate the allowance for income taxes
in  the  manner  it  had  historically  used. In  addition, a  settlement  adjustment  mechanism  was  implemented, which
effectively reduced the return on rate base. These provisions of the 1995 rate case were maintained in the settlement of
Northern Border Pipeline’s 1999 rate case.

Northern  Border  Pipeline  also  provides  interruptible  transportation  service. Interruptible  transportation  service  is
transportation in circumstances when capacity is available after satisfying firm service requests. The maximum rate that may
be charged to interruptible shippers is the sum of the firm transportation maximum demand and commodity charges.
From the settlement of its 1999 rate case through October 31, 2003, Northern Border Pipeline shared net interruptible
transportation service revenue and any new services revenue on an equal basis with its firm shippers, however, Northern
Border Pipeline was permitted to retain revenue from interruptible transportation service to offset any decontracted
firm capacity. Beginning November 1, 2003, Northern Border Pipeline retains all revenues from these services.

Northern Border Pipeline is subject to the requirements of FERC Order Nos. 497 and 566, which prohibit preferential
treatment by interstate natural gas pipelines of their marketing affiliates and govern how information may be provided
to  those  marketing  affiliates. On  November  25, 2003, the  FERC  issued  a  final  rule, Order  No. 2004, adopting  new
standards of conduct for transmission providers when dealing with their energy affiliates. All transmission providers
must  comply  with  the  standards  of conduct  by  June  1, 2004. The  standards  of conduct  are  designed  to  prevent
transmission providers from giving undue preferences to any of their energy affiliates. The final rule generally requires
that  transmission  function  employees  operate  independently  of the  marketing  function  employees  and  energy 
affiliates. As required of all transmission providers, Northern Border Pipeline posted a compliance plan to its website
on February 9, 2004. By definition, two of Northern Border Pipeline’s energy affiliates are Bear Paw Energy, LLC and
Crestone Energy L.L.C., both of which are gathering companies owned by Northern Border Partners. Northern Border
Pipeline’s operator, Northern Plains, provides after hours and weekend gas control services for Bear Paw and Crestone
that  results  in  some  cost  savings  to  Northern  Border  Pipeline. Northern  Border  Pipeline  has  requested  a  waiver  to
permit Northern Plains to continue to provide after hours and weekend gas control services for Bear Paw Energy and
Crestone. If the  waiver  is  not  granted, the  cost  to  maintain  gas  control  for  Northern  border  Pipeline  will  increase
slightly. Several parties have filed for rehearing on a number of issues, including whether gathering companies should
be included in the definition of energy affiliate.

On August 1, 2002, the FERC issued a Notice of Proposed Rulemaking regarding the regulation of cash management
practices of the natural gas and other companies that it regulates. On June 26, 2003, the FERC issued an interim rule in
that  proceeding  that  amended  the  FERC’s  regulations  to  provide  for  documentation  requirements  for  cash
management  programs  and  to  implement  new  reporting  requirements. Specifically, under  the  interim  rule, all  cash

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management agreements between regulated entities and their affiliates must be in writing, must specify the duties and
responsibilities of cash management participants and administrators, must specify the methods for calculating interest
and  for  allocating  interest  income  and  expense, and  must  specify  any  restrictions  on  deposits  or  borrowings  by
participants. A FERC-regulated entity must file with the FERC any cash management agreements to which it is a party,
as well as any subsequent changes to such agreements. In addition, a FERC-regulated entity must notify the FERC when
its  equity  component  of proprietary  capital  ratio  falls  below  30%. Northern  Border  Pipeline  does  not  have  a  cash
management agreement nor is Northern Border Pipeline required to have one and the FERC was notified. Northern
Border Pipeline advises that it does not expect that the FERC policy will have an impact on Northern Border Pipeline’s
cash management practices.

On July 17, 2002, the FERC issued a Notice of Inquiry Concerning Natural Gas Pipeline Negotiated Rate Policies and
Practices. Subsequently, the FERC issued an order on July 25, 2003, modifying its prior policy on negotiated rates. The
FERC  ruled  that  it  would  no  longer  permit  the  pricing  of negotiated  rates  based  upon  natural  gas  commodity  price
indices. Negotiated rates based upon such indices may continue until the end of the contract period for which such rates
were negotiated, but such rates will not be prospectively approved by FERC. FERC also imposed certain requirements on
other types of negotiated rate transactions to ensure that the agreements embodying such transactions do not materially
differ from the terms and conditions set forth in the tariff of the pipeline entering into the transaction. Since Northern
Border  Pipeline’s  business  does  not  derive  a  significant  amount  of its  revenues  from  negotiated  rate  transactions,
Northern Border Pipeline advises that it does not expect this FERC ruling to have a material effect on its business.

Recent FERC orders in proceedings involving other natural gas pipelines have addressed certain aspects of the pipelines’
creditworthiness provisions set forth in their tariffs. In addition, industry groups, such as the North American Energy
Standards Board (NAESB), are studying creditworthiness standards. On February 12, 2004, FERC issued a Notice of
Proposed  Rulemaking  to  require  interstate  pipelines  to  follow  standardized  procedures  for  determining  the
creditworthiness of their shippers. The proposed rule would incorporate by reference ten consensus standards passed
within NAESB and would adopt additional standards requiring, among other things, standardization of information
shippers provide to establish credit, collateral requirements for service, procedures for suspension and termination for
non-creditworthy shippers and procedures governing capacity release transactions. Comments are due on the proposed
rule by March 26, 2004. Recent FERC orders, and this proposed rule, support greater collateral requirements for credit
on shippers for the construction of new facilities by a pipeline. The enactment of some of these standards may have the
effect of easing certain creditworthiness requirements and parameters currently reflected in Northern Border Pipeline’s
tariff. Recent  FERC  orders  have  indicated, however, that  pipelines  are  free  to  negotiate  credit  terms  relative  to  the
construction of new facilities by a pipeline, which are then effective for the term of the contract and are not superceded
by  tariff provisions  once  the  facilities  are  completed. Northern  Border  Pipeline  advises  that, at  this  time, it  cannot
predict the ultimate impact, if any, on Northern Border Pipeline of any resulting final rule.

In February 2004, the FERC adopted new quarterly financial reporting requirements and accelerated the filing date for
interstate pipeline’s annual financial report. The quarterly reports will include a basic set of financial statements and
other  selected  data  and  will  be  submitted  electronically. For  2004, each  quarterly  report  will  be  due  approximately 
70  days  following  the  end  of the  quarter  except  for  the  first  quarter  report  which  is  due  on  or  before  July  9, 2004.
Subsequent reports will be due 60 days after the end of each quarter. The annual report, previously required to be filed
each  year  on  or  before  April  30, will  be  required  on  or  before  April  25, 2005  for  2004  and  on  April  18  thereafter.
Northern Border Pipeline advises that it does not anticipate any impact for complying with these requirements other
than the time and additional expenses for preparation of these reports.

From time to time, Northern Border Pipeline files to make changes to its tariff to clarify provisions, to reflect current
industry practices and to reflect recent FERC rulings. In February 2003, Northern Border Pipeline filed to amend the
definition of company use gas, which is gas supplied by Northern Border Pipeline’s shippers for the operation of its
compressor stations, to clarify the language by adding detail to the broad categories that comprise company use gas.

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However, in its March 2003 order, the FERC directed Northern Border Pipeline to cease collecting electric costs through
its company use gas provisions and to refund with interest, within 90 days, all electric costs that had been collected
through the company use gas provisions. Refunds of approximately $10.0 million were made in May 2003.

In August 2003 Northern Border Pipeline filed revised tariff sheets to clarify its procedures for the awarding of capacity.
Several  parties  protested  the  filing. One  party  requested  a  show  cause  proceeding  to  examine  past  tariff practices
alleging that Northern Border Pipeline had violated its tariff by denying a service request that would have involved a
short distance for less than one year. On September 10, 2003, the FERC rejected Northern Border Pipeline’s tariff sheets
based upon the conclusion that certain aspects of the proposal were not in accordance with Commission policy. The
FERC did affirm that, up to ninety days prior to the effective date, Northern Border Pipeline had the right not to sell
capacity  requested  for  short  distances  or  on  a  short-term  basis. Northern  Border  Pipeline  filed  a  timely  request  for
rehearing  of the  Commission’s  Order  in  October  2003  which  is  still  pending. Northern  Border  Pipeline  also  filed
responses  to  requests  for  further  information  on  the  award  of capacity  in  the  summer  of 2003. Northern  Border
Pipeline filed its compliance tariff sheets in early December 2003 and is awaiting a Commission decision on these tariff
sheets. Northern Border Pipeline’s tariff sheets and the final orders to be entered in this proceeding will impact how
Northern Border Pipeline awards available capacity. With contracts expiring before November 1, 2004, if timely bids for
one year of service or longer on the entire transportation path available are not received, Northern Border Pipeline
advises that it may potentially be required to accept bids for shorter distances that may result in creating segments of
capacity of minimal value.

In March 2004, Northern Border Pipeline filed tariff sheets to implement two balancing services to assist deliveries at
variable  load  points, such  as  electrical  generation  plant. Northern  Border  Pipeline  also  filed  with  the  FERC  certain
agreements for third party balancing which it believes are administrative in nature and which will be terminated upon
approval of the new balancing services. Under current orders and rulings in other proceedings before the FERC, it is
unclear whether these agreements would be deemed non-conforming. However, Northern Border Pipeline advises that
it does not expect that orders on these tariff sheets and agreements will have a material adverse impact on its business.

Environmental and Safety Matters
Northern Border Pipeline’s operations are subject to federal, state and local laws and regulations relating to safety and
the protection of the environment, which include the Resource Conservation and Recovery Act, the Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended, Clean Air Act, as amended, the Clean
Water Act, as amended, the Natural Gas Pipeline Safety Act of 1969, as amended, the Pipeline Safety Act of 1992 and
the Pipeline Safety Improvement Act of 2002.

The Pipeline Safety Improvement Act (Act) of 2002 was signed into law in December 2002, providing guidelines for
interstate pipelines in the areas of risk analysis and integrity management, public education programs, verification of
operator  qualification  programs  and  filings  with  the  National  Pipeline  Mapping  System. The  Act  requires  pipeline
companies to perform integrity assessments on pipeline segments that exist in high population density areas or near
specifically identified sites that are designated as high consequence areas. Pipeline companies are required to perform
the integrity assessments within ten years of the date of enactment and must perform subsequent integrity assessments
on a seven-year cycle. At least 50% of the highest risk segments must be assessed within five years of the enactment date.
In addition, within one year of enactment, the pipeline’s operator qualification programs, in force since the mandatory
compliance date of October 2002, must also conform to standards provided by the Department of Transportation. The
regulations implementing the Act are not yet final. Rules on integrity management, direct assessment usage, and the
operator  qualification  standards  have  been  issued. Northern  Border  Pipeline  has  made  the  required  filings  with  the
National Pipeline Mapping System and has reviewed and revised its public education program. Compliance with the
Act is expected to increase Northern Border Pipeline’s operating costs particularly related to integrity assessments for
its  interstate  pipeline. As  required, Northern  Border  Pipeline  has  developed  an  overall  plan  for  pipeline  integrity

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management. Detailed analysis is being performed to determine the priorities and costs for inspecting and testing its
pipeline. However, the plan will be modified as a result of the findings noted and could result in additional assessment
or remediation costs. Although TC PipeLines expects Northern Border Pipeline to include these costs in future rate case
filings, total recovery is not assured. Northern Border Pipeline advises that, presently, it expects its costs for 2004 for
integrity management to be approximately $0.5 million.

TC PipeLines believes that Northern Border Pipeline’s operations and facilities are in general compliance in all material
respects  with  applicable  environmental  and  safety  regulations, however, risks  of substantial  costs  and  liabilities  are
inherent in pipeline operations, and TC PipeLines cannot provide any assurances that Northern Border Pipeline will
not  incur  such  costs  and  liabilities. Moreover, it  is  possible  that  other  developments, such  as  the  enactment  of
increasingly  strict  environmental  and  safety  laws, regulations  and  enforcement  policies  by  Congress, the  FERC, the
Department  of Transportation  and  other  federal  agencies, state  regulatory  bodies  and  the  courts, and  claims  for
damages to property or persons resulting from Northern Border Pipeline’s operations, could result in substantial costs
and  liabilities  to  Northern  Border  Pipeline. If Northern  Border  Pipeline  is  unable  to  recover  such  resulting  costs,
earnings and cash distributions could be adversely affected.

BUSINESS OF TUSCARORA GAS TRANSMISSION COMPANY

Tuscarora is a Nevada general partnership formed in 1993. Its general partners are TC Tuscarora Intermediate Limited
Partnership, a direct subsidiary of TC PipeLines, which holds a 49% general partner interest, Tuscarora Gas Pipeline
Co., a  wholly  owned  subsidiary  of Sierra  Pacific  Resources, which  holds  a  50%  general  partner  interest  and  TCPL
Tuscarora Ltd., an indirect wholly owned subsidiary of TransCanada, which holds a 1% general partner interest.

The management of Tuscarora is overseen by a management committee that determines the policies of, has authority
over the affairs of, and approves the actions of Tuscarora. The management committee participates in the management
of the construction, maintenance and operation of the Tuscarora pipeline system.

Under the Tuscarora partnership agreement, voting control is allocated among Tuscarora’s three general partners in
proportion to their general partner interests in Tuscarora. As a result, TC PipeLines has a 49% voting interest, Sierra
Pacific Resources has a 50% voting interest, and TransCanada has a 1% voting interest on the Tuscarora management
committee. Tuscarora Gas Operating Company, a subsidiary of Sierra Pacific Resources, operates the Tuscarora pipeline
system pursuant to an operating agreement. Effective December 1, 2002, TransCanada is under contract to provide gas
control services for the Tuscarora pipeline system, including monitoring and control of the compressor units, as well as
emergency call out functions and other operational co-ordination.

The Tuscarora Pipeline System 
Tuscarora  owns  a  240-mile, 20-inch  diameter, United  States  interstate  pipeline  system  that  originates  at  an
interconnection point with facilities of Gas Transmission Northwest Corporation (GTN) near Malin, Oregon and runs
southeast through northeastern California and northwestern Nevada. The Tuscarora pipeline system terminates near
Wadsworth, Nevada. Deliveries  are  also  made  directly  to  the  local  gas  distribution  system  of Sierra  Pacific  Power
Company, a subsidiary of Sierra Pacific Resources. Along its route, deliveries are made in Oregon, northern California
and northwestern Nevada.

The Tuscarora pipeline system was constructed in 1995 and was placed into service in December 1995. The Tuscarora
pipeline system has firm capacity contracts to transport approximately 180 mmcfd of natural gas.

On December 1, 2002, Tuscarora completed and placed into service an expansion of its pipeline system. This expansion
consisted of two compressor stations and an 11-mile pipeline extension from the previous terminus of the Tuscarora
pipeline system near Reno, Nevada to Wadsworth, Nevada. The expansion increased Tuscarora’s contracted capacity from
127  mmcfd  to  approximately  180  mmcfd. The  new  capacity  was  contracted  under  long-term  firm  transportation

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contracts ranging from ten to fifteen years from the in-service date. Sierra Pacific Power had contracted for approximately
11 mmcfd of the expansion capacity. The project had a capital budget of approximately $43.0 million and was completed
at a capital cost of approximately $39.0 million. At the request of the Public Utilities Commission of Nevada, Tuscarora
will submit a cost and revenue study to the FERC within 3 years of the in-service date of the expansion.

Tuscarora  has  firm  transportation  contracts  for  over  94%  of its  capacity, including  contracts  held  by  Sierra  Pacific
Power  for  68.1%  of the  total  available  capacity, the  majority  of which  expires  on  November  30, 2015. As  of
December 31, 2003, the weighted average contract life on the Tuscarora pipeline system was approximately 11.5 years.

In June 2003, Tuscarora held an open season to determine the demand for incremental firm capacity by winter 2005.
The open season resulted in the execution of firm transportation service agreements for a net increase of approximately
50  mmcfd. Tuscarora  has  begun  preliminary  planning  activities  for  construction  of additional  facilities  to  meet  the
additional capacity requirements. Tuscarora has advised that it anticipates that an application for a Certificate of Public
Convenience and Necessity for authorization to construct and operate the new pipeline facilities, will be filed with the
FERC by the second quarter 2004. Construction of the project is anticipated to commence in late spring of 2005, with
newly  commissioned  facilities  on  line  by  November  1, 2005. Total  capital  cost  is  estimated  to  be  approximately 
$16.6 million. This expansion project will increase Tuscarora’s contracted capacity by approximately 28%.

Tuscarora’s  competitive  position  is  dependent  on  the  continued  availability  of commercially  attractive  western
Canadian natural gas for import into the United States and on the level of demand for western Canadian natural gas in
the  markets  the  Tuscarora  pipeline  system  serves. Shippers  of natural  gas  from  the  Western  Canadian  Sedimentary
Basin  have  other  options  for  transporting  Canadian  natural  gas  to  the  United  States, including  transportation  on
pipelines eastward in Canada or to markets on the west coast of the United States and Canada. Similarly, natural gas
produced in the United States serves the same markets as Tuscarora in northern Nevada. Tuscarora is able to transport
both Canadian and United States natural gas, providing Tuscarora with a well-diversified supply of natural gas to serve
its markets.

FERC Regulation
Tuscarora is subject to regulation by the FERC as a “natural gas company” under the Natural Gas Act, and is subject to
the FERC’s rules, regulations and accounting procedures.

Tuscarora generates revenues from individual transportation contracts with shippers that provide for the receipt and
delivery of natural gas at points along the Tuscarora pipeline system. Tuscarora’s transportation rates are based on its
cost  of service  as  approved  by  the  FERC. Tuscarora’s  cost  of service  includes  administrative  and  operating  costs,
depreciation and amortization, taxes other than income taxes, an allowance for income taxes and a regulated return on
capital employed.

On  November  25, 2003, the  FERC  issued  a  final  rule, Order  No. 2004, adopting  new  standards  of conduct  for
transmission  providers  when  dealing  with  their  energy  affiliates. All  transmission  providers  must  comply  with  the
standards of conduct by June 1, 2004. The standards of conduct are designed to prevent transmission providers from
giving undue preferences to any of their energy affiliates. The final rule generally requires that transmission function
employees operate independently of the marketing function employees and energy affiliates. Tuscarora advises that it
will be in compliance with these new standards by June 1, 2004.

In February 2004, the FERC amended its financial reporting regulations to establish new quarterly financial reporting
requirements. The reports will include a basic set of financial statements and other selected data and will be submitted
electronically. The first report for Tuscarora will be due on or before July 23, 2004. Tuscarora advises that it does not
anticipate  any  impact  from  complying  with  these  requirements  other  than  the  time  and  additional  expenses  for
preparation of these reports.

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T C   P I P E L I N E S ,   L P

Environmental and Safety Matters
Tuscarora’s operations are subject to federal, state and local laws and regulations relating to safety and protection of the
environment. TC  PipeLines  believes  that  Tuscarora’s  operations  and  facilities  comply  in  all  material  respects  with
applicable United States environmental and safety regulations.

Available Information
The Partnership’s annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and any
amendments  to  these  reports  filed  or  furnished  pursuant  to  Section  13(a)  or  15(d)  of the  Exchange  Act  are  made
available  free  of charge  on  the  Partnership’s  website  at  www.tcpipelineslp.com/investor/reports.htm  as  soon  as
reasonably practicable after the Partnership electronically files these materials with, or furnishes them to, the Securities
and Exchange Commission (SEC).

Item 2.

Properties

TC PipeLines does not hold the right, title or interest in any properties.

Properties of Northern Border Pipeline Company
Northern  Border  Pipeline  holds  the  right, title  and  interest  in  its  pipeline  system. With  respect  to  real  property, the
pipeline system falls into two basic categories: (a) parcels which are owned in fee, such as sites for compressor stations,
meter  stations, pipeline  field  offices, and  microwave  towers; and  (b)  parcels  where  the  interest  derives  from  leases,
easements, rights-of-way, permits or licenses from landowners or governmental authorities permitting the use of such
land for the construction and operation of the pipeline system. The right to construct and operate the pipeline system
across  certain  property  was  obtained  through  exercise  of the  power  of eminent  domain. Northern  Border  Pipeline
continues to have the power of eminent domain in each of the states in which it operates, although Northern Border
Pipeline may not have the power of eminent domain with respect to Native American tribal lands.

Approximately 90 miles of the Northern Border pipeline system is located on fee, allotted and tribal lands within the
exterior boundaries of the Fort Peck Indian Reservation in Montana. Tribal lands are lands owned in trust by the United
States for the Fort Peck Tribes and allotted lands are lands owned in trust by the United States for an individual Indian
or Indians. Northern Border Pipeline does have the right of eminent domain with respect to allotted lands.

In 1980, Northern Border Pipeline entered into a pipeline right-of-way lease with the Fort Peck Tribal Executive Board,
for and on behalf of the Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation (Tribes). This pipeline right-
of-way lease, which was approved by the Department of the Interior in 1981, granted to Northern Border Pipeline the
right and privilege to construct and operate its pipeline on certain tribal lands. This pipeline right-of-way lease expires
in 2011. See Item 3. “Legal Proceedings.”

In conjunction with obtaining a pipeline right-of-way lease across tribal lands located within the exterior boundaries
of the Fort Peck Indian Reservation, Northern Border Pipeline also obtained a right-of-way across allotted lands located
within the reservation boundaries. Most of the allotted lands are subject to a perpetual easement either granted by the
Bureau of Indian Affairs for and on behalf of individual Indian owners or obtained through condemnation. Several
tracts are subject to a right-of-way grant that has a term of 15 years, expiring in 2015.

Properties of Tuscarora Gas Transmission Company
Tuscarora holds the right, title and interest in its pipeline system. Tuscarora owns all of its material equipment and
personal property and leases office space in Reno, Nevada. With respect to real property, Tuscarora’s ownership falls into
two basic categories: (a) parcels which it owns in fee; and (b) parcels where its interest derives from leases, easements,
grants, permits  or  licenses  from  landowners  or  governmental  authorities  permitting  the  use  of the  land  for  the
construction and operation of its pipeline system.

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Item 3.

Legal Proceedings

TC PipeLines is not currently a party to any material legal proceedings.

On July 31, 2001, the Tribes of the Fort Peck Indian Reservation filed a lawsuit in Tribal Court against Northern Border
Pipeline to collect more than $3.0 million in back taxes, together with interest and penalties. The lawsuit relates to a
utilities  tax  on  certain  of Northern  Border  Pipeline’s  properties  within  the  Fort  Peck  Indian  Reservation. Northern
Border Pipeline and the Tribes, through a mediation process, reached a settlement in principle on pipeline right-of-way
lease  and  taxation  issues. Final  documentation  has  been  completed  and  is  subject  to  the  approval  of the  Bureau  of
Indian Affairs, which  the  parties  believe  will  be  obtained  in  the  very  near  term. This  settlement  grants  to  Northern
Border Pipeline, among other things, (i) an option to renew the pipeline right-of-way lease upon agreed terms and
conditions on or before April 1, 2011 for a term of 25 years with a renewal right for an additional 25 years; (ii) a present
right to use additional tribal lands for expanded facilities; and (iii) release and satisfaction of all tribal taxes against us.
In  consideration  of this  option  and  other  benefits, Northern  Border  Pipeline  will  pay  a  lump  sum  amount  of
$5.9  million  and  an  annual  amount  of approximately  $1.5  million  beginning April  2004. Northern  Border  Pipeline
advises that it intends to seek regulatory recovery of the costs resulting from the settlement. See Item 7. “Management’s
Discussion and Analysis of Financial Condition and Results of Operations – Risk Factors and Cautionary Statement
Regarding Forward-Looking Statements.”

See Item 1. “Business – Business of Northern Border Pipeline Company – FERC Regulation” for a discussion on the
proceedings before the FERC.

Northern Border Pipeline advises that it is not currently party to any other legal proceedings that, individually or in the
aggregate, would reasonably be expected to have a material adverse impact on it or TC PipeLines’ results of operations
or financial position.

Tuscarora is not currently a party to any material legal proceedings.

Item 4.

Submission of Matters to a Vote of Security Holders

There were no matters submitted to a vote of security holders, through solicitation of proxies or otherwise, during the
year ended December 31, 2003.

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T C   P I P E L I N E S ,   L P

PA RT   I I

Item 5. Market for Registrant’s Common Units and Related Security Holder Matters

The common units representing limited partner interests in the Partnership were issued pursuant to an initial public
offering on May 28, 1999 at a price of $20.50 per common unit. The common units are quoted on the Nasdaq Stock
Market and trade under the symbol “TCLP.”

The following table sets forth, for the periods indicated, the high and low sale prices per common unit, as reported by
the  Nasdaq  Stock  Market, and  the  amount  of cash  distributions  per  common  unit  declared  with  respect  to  the
corresponding periods. Cash distributions are paid within 45 days after the end of each quarter to unitholders of record
as of the record date.

2003
First Quarter
Second Quarter
Third Quarter
Fourth Quarter

2002
First Quarter
Second Quarter
Third Quarter
Fourth Quarter

Price Range

High

Low

Cash Distributions
Declared per Unit

$ 27.35
$ 30.00
$ 33.70
$ 33.70

$ 27.38
$ 26.00
$ 26.99
$ 27.88

$ 24.74
$ 25.50
$ 28.80
$ 30.60

$ 23.90
$ 23.31
$ 21.30
$ 24.02

$ 0.525
$ 0.550
$ 0.550
$ 0.550

$ 0.500
$ 0.525
$ 0.525
$ 0.525

As of February 23, 2004, there were 97 record holders of common units and approximately 7,500 beneficial owners of
common units, including common units held in street name.

The  Partnership  currently  has  16,563,564  common  units  outstanding, of which  11,890,694  are  held  by  the  public,
2,800,000 are held by an affiliate of the general partner, and 1,872,870 are held by the general partner. The Partnership
also has 936,436 subordinated units outstanding, all of which are held by the general partner, for which there is no
established public trading market. The common units and the subordinated units represent an aggregate 98% limited
partner interest and the general partner interest represents an aggregate 2% general partner interest in the Partnership.

The  general  partner  receives  2%  of all  cash  distributions  and  the  holders  of common  units  and  subordinated  units
(collectively referred to as unitholders) receive the remaining 98% of all cash distributions. The general partner is also
entitled to incentive distributions as described below. The Partnership’s quarterly cash distributions to its unitholders
are comprised of all of its Available Cash. Available Cash is defined in the partnership agreement and generally means,
with respect to any quarter of the Partnership, all cash on hand at the end of a quarter less the amount of cash reserves
that are necessary or appropriate, in the reasonable discretion of the general partner, to:

• provide for the proper conduct of the business of the Partnership (including reserves for future capital expenditures

and for anticipated credit needs);
comply with applicable laws or any Partnership debt instrument or agreement; or

•
• provide funds for cash distributions to unitholders and the general partner in respect of any one or more of the next

four quarters.

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Distributions  of Available  Cash  to  the  holder  of subordinated  units  are  subject  to  the  prior  rights  of the  holders  of
common  units  to  receive  the  minimum  quarterly  distribution  for  each  quarter  while  the  subordinated  units  are
outstanding  (subordination  period), and  to  receive  any  arrearages  in  the  cash  distribution  of minimum  quarterly
distributions  on  the  common  units  for  prior  quarters  during  the  subordination  period. The  partnership  agreement
defines the minimum quarterly distribution as $0.45 for each full fiscal quarter.

The general partner receives incentive distributions if the amount distributed with respect to any quarter exceeds the
minimum  quarterly  distribution  of $0.45  per  unit. Under  the  incentive  distribution  provisions, the  general  partner
receives 15% of amounts distributed in excess of $0.45 per unit, 25% of amounts distributed in excess of $0.5275 per
unit, and 50% of amounts distributed in excess of $0.69 per unit provided the balance has been first distributed to
unitholders  on  a  pro  rata  basis. The  amounts  that  trigger  incentive  distributions  at  various  levels  are  subject  to
adjustment in certain events, as described in the partnership agreement.

In 2003, the Partnership made cash distributions to unitholders and the general partner that amounted to $39.4 million
compared to $37.4 million in 2002. These payments represented $0.525 per unit for the quarters ended December 31, 2002
and March 31, 2003 and $0.55 per unit for the quarters ended June 30, 2003 and September 30, 2003. On February 13, 2004,
the Partnership paid a cash distribution of $10.1 million to unitholders and the general partner, representing a cash
distribution of $0.55 per unit for the quarter ended December 31, 2003. The distribution was allocated in the following
manner: $9.1  million  to  the  holders  of common  units  as  of the  close  of business  on  January  30, 2004  (including 
$1.5 million to an affiliate of the general partner as holder of 2,800,000 common units and $1.0 million to the general
partner as holder of 1,872,870 common units), $0.5 million to the general partner as holder of the subordinated units,
$0.3 million to the general partner as holder of incentive distribution rights, and $0.2 million to the general partner in
respect of its 2% general partner interest.

Subordination Period
The subordination period extends until the first day of any quarter beginning after June 30, 2004 in respect of which:

•

• distributions of Available Cash from operating surplus on the common units and the subordinated units for each
of the three non-overlapping four-quarter periods immediately preceding that date equaled or exceeded the sum
of the  minimum  quarterly  distribution  on  all  of the  outstanding  common  units  and  subordinated  units  during
those periods;
the  adjusted  operating  surplus  generated  during  each  of the  three  non-overlapping  four-quarter  periods
immediately preceding that date equaled or exceeded the sum of the minimum quarterly distribution on all of the
common units and the subordinated units that were outstanding on a fully diluted basis and the related distributions
on the general partner interest during those periods; and
there are no arrearages in payment of the minimum quarterly distribution on the common units.

•

On August 1, 2002, 936,435 subordinated units, representing one-third of the outstanding subordinated units held by
the  general  partner, upon  satisfaction  of the  financial  tests  set  forth  in  the  partnership  agreement  of TC  PipeLines,
automatically converted into an equal number of common units.

On  August  1, 2003, an  additional  936,435  subordinated  units  held  by  the  general  partner, upon  satisfaction  of the
financial tests set forth in the partnership agreement, automatically converted into an equal number of common units.

The  remaining  936,436  outstanding  subordinated  units  will, upon  satisfaction  of the  financial  tests, automatically
convert into common units on the first day after the record date for distributions for the quarter ending June 30, 2004,
and will thereafter participate, pro rata, with the other common units in distributions of Available Cash.

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T C   P I P E L I N E S ,   L P

Item 6.

Selected Financial Data

The selected financial data should be read in conjunction with the financial statements, including the notes thereto, and
Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

TC PIPELINES, LP

(millions of dollars, except per unit amounts)

Income Data
Equity income from investment in Northern Border Pipeline
Equity income from investment in Tuscarora (2)
General and administrative expenses
Financial charges

Net income
Basic and diluted net income per unit
Units outstanding (millions)

Cash Flow Data
Net cash provided by operating activities
Distributions paid

Balance Sheet Data (at end of year)
Investment in Northern Border Pipeline
Investment in Tuscarora (2)
Total assets
Long-term debt
Partners’ equity

(1)

(2)

The Partnership commenced operations on May 28, 1999.

The Partnership acquired a 49% interest in Tuscarora on September 1, 2000.

Year Ended December 31

2003

2002

2001

May 28 (1) –
2000 Dec 31, 1999

44.5
5.3
(1.7)
(0.1)

42.8
4.7
(1.5)
(0.5)

42.1
3.6
(1.2)
(1.0)

38.1
0.9
(1.3)
(0.5)

20.9
–
(0.7)
–

48.0
$ 2.63
17.5

45.5
$ 2.50
17.5

43.5
$ 2.40
17.5

37.2
$ 2.08
17.5

20.2
$ 1.13
17.5

49.6
39.4

240.7
39.9
288.1
5.5
282.0

52.1
37.4

242.9
36.7
286.0
11.5
273.9

42.9
35.2

250.1
29.3
288.7
21.5
266.7

40.3
32.6

248.1
27.9
277.5
21.5
255.4

11.8
11.0

250.5
–
251.2
–
250.8

Item 7.  Management’s Discussion and Analysis of Financial Condition 
and Results of Operations

As a result of the Partnership’s ownership of investments in both Northern Border Pipeline and Tuscarora, the following
discusses first the results of operations and liquidity and capital resources of TC PipeLines, then those of each of Northern
Border Pipeline and Tuscarora in their entirety.

The  following  discussions  of the  financial  condition  and  results  of operations  of the  Partnership, Northern  Border
Pipeline and Tuscarora should be read in conjunction with the financial statements and notes thereto of the Partnership
and Northern Border Pipeline included elsewhere in this report (see Item 8. “Financial Statements and Supplementary
Data”). For more detailed information regarding the basis of presentation for the following financial information, see
the  notes  to  the  financial  statements  of the  Partnership  and  Northern  Border  Pipeline. As  of December  31, 2003,
TC PipeLines’ interest  in  Northern  Border  Pipeline  represents  approximately  84%  of TC  PipeLines’ total  assets  and
for the year ended December 31, 2003 provided approximately 89% of TC PipeLines’ equity income. All amounts are
stated in United States dollars.

OVERVIEW

TC PipeLines owns a 30% general partner interest in Northern Border Pipeline Company. The remaining 70% general
partner  interest  in  Northern  Border  Pipeline  is  held  by  Northern  Border  Partners, L.P., a  publicly  traded  limited
partnership  that  is  controlled  by  affiliates  of Enron  Corp. TransCanada  holds  a  minority  general  partner  interest  in
Northern  Border  Partners  which  entitles  it  to  12.25%  of the  voting  power  of Northern  Border  Pipeline. Northern
Border  Pipeline  owns  a  1,249-mile  interstate  pipeline  system  that  transports  natural  gas  from  the  Montana-
Saskatchewan  border  near  Port  of Morgan, Montana  to  natural  gas  markets  in  the  midwestern  United  States.
Construction  of the  pipeline  was  initially  completed  in  1982. The  Northern  Border  pipeline  system  was  expanded

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and/or extended in 1991, 1992, 1998 and 2001. The Northern Border pipeline system connects directly and through
multiple pipelines to various natural gas markets in the United States.

TC  PipeLines  also  owns  a  49%  general  partner  interest  in  Tuscarora  Gas  Transmission  Company. The  Partnership
acquired this interest from TCPL Tuscarora Ltd., an indirect subsidiary of TransCanada, in September 2000. Tuscarora
owns a 240-mile, 20-inch diameter, United States interstate pipeline system that originates at an interconnection point
with  facilities  of Gas  Transmission  Northwest  Corporation  (GTN)  near  Malin, Oregon  and  runs  southeast  through
northeastern California and northwestern Nevada. The Tuscarora pipeline system terminates near Wadsworth, Nevada.
Deliveries  are  also  made  directly  to  the  local  gas  distribution  system  of Sierra  Pacific  Resources. Along  its  route,
deliveries are made in Oregon, northern California and northwestern Nevada.

The Tuscarora pipeline system was constructed in 1995 and was placed into service in December 1995. In January 2001,
Tuscarora  completed  construction  of the  Hungry Valley  lateral, a  14-mile, 16-inch  pipeline  extension  that  serves  as
Tuscarora’s second connection into Reno, Nevada. On December 1, 2002, Tuscarora completed and placed into service
another  expansion  of its  pipeline  system. The  2002  expansion  consisted  of two  compressor  stations  and  an  11-mile
pipeline  extension  from  the  previous  terminus  of the  Tuscarora  pipeline  system  near  Reno, Nevada  to  Wadsworth,
Nevada. The expansion increased Tuscarora’s contracted capacity from 127 mmcfd to approximately 180 mmcfd. The
new capacity is contracted under long-term firm transportation contracts.

The  Partnership’s  30%  general  partner  interest  in  Northern  Border  Pipeline  and  49%  general  partner  interest  in
Tuscarora represent its only material assets. As a result, the Partnership is dependent upon Northern Border Pipeline
and Tuscarora for all of its available cash. Northern Border Pipeline represents approximately 90% of TC PipeLines’
equity income. For an overview discussing the important factors impacting Northern Border Pipeline’s business, such
as the continued availability of western Canadian natural gas in the U.S., see “Results of Operations of Northern Border
Pipeline Company – Overview” below.

RESULTS OF OPERATIONS OF TC PIPELINES, LP

Critical Accounting Policy
TC PipeLines accounts for its investments in both Northern Border Pipeline and Tuscarora using the equity method of
accounting as detailed in Note 3 and Note 4 to the Partnership’s Financial Statements, included elsewhere in this report.
The equity method of accounting is appropriate where the investor does not control an investee, but rather is able to
exercise significant influence over the operating and financial policies of an investee. TC PipeLines is able to exercise
significant influence over its investments in Northern Border Pipeline and Tuscarora as evidenced by its representation
on their respective management committees.

Since the 30% general partner interest in Northern Border Pipeline and the 49% general partner interest in Tuscarora are
currently the Partnership’s only material sources of income, the Partnership’s results of operations are influenced by and
reflect the same factors that influence the financial results of Northern Border Pipeline and Tuscarora (see Item 1. “Business
– Business of Northern Border Pipeline Company” and “Business – Business of Tuscarora Gas Transmission Company”).

Year Ended December 31, 2003 Compared with the Year Ended December 31, 2002
Net  income  increased  $2.5  million, or  5%, to  $48.0  million  for  the  year  ended  December  31, 2003, compared  to 
$45.5 million for 2002. The increase is primarily due to higher equity income from the Partnership’s investments in
Northern Border Pipeline and Tuscarora.

Equity  income  from  the  Partnership’s  investment  in  Northern  Border  Pipeline  increased  $1.7  million, or  4%, to 
$44.5 million for the year ended December 31, 2003 compared to $42.8 million for 2002. Northern Border Pipeline’s
revenues  for  2003  were  higher  than  the  same  period  last  year  due  to  the  uncollected  revenues  associated  with  the
transportation capacity previously held by Enron North America which reduced 2002 revenues, as well as additional

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T C   P I P E L I N E S ,   L P

incremental revenues received in 2003. These factors increased the Partnership’s 2003 equity income by $0.9 million.
Also, Northern Border Pipeline’s interest expense was lower during 2003 compared to the same period last year due
primarily  to  lower  average  interest  rates  and  lower  average  debt  balances  outstanding, resulting  in  an  increase  of
$2.0  million  to  the  Partnership’s  equity  income. These  increases  were  partially  offset  by  higher  operations  and
maintenance  expenses  and  taxes  other  than  income  as  well  as  a  decrease  in  other  income. The  increase  in  2003
operations and maintenance expense is primarily due to a provision recorded by Northern Border Pipeline in 2003
related to its share of Enron’s cash balance plan underfunding (see “Results of Operations of Northern Border Pipeline
Company – Impact of Enron’s Chapter 11 Filing on Northern Border Pipeline’s Business”), partially offset by lower
electric power costs in 2003 as compared to 2002, resulting in a net decrease to the Partnership’s equity income of $0.3
million. The increase in 2003 taxes other than income is primarily due to a refund of use taxes received by Northern
Border Pipeline during 2002 as well as higher property taxes in 2003 as compared to 2002. These increases resulted in
a  decrease  in  equity  income  to  the  Partnership  of $0.4  million. Other  income  (expense)  was  lower  during  2003  as
compared to the prior year. The 2003 amount includes interest expense for refunds required by the order issued by the
FERC on March 27, 2003 (see Item 1. “Business – Business of Northern Border Pipeline Company – FERC Regulation”)
whereas  the  2002  amount  includes  income  mostly  related  to  interest  received  on  the  refund  of use  taxes  previously
discussed and income for previously vacated frequency bands. The impact on the Partnership of this decrease in other
income was a $0.5 million reduction in equity income from Northern Border Pipeline.

Equity income from the Partnership’s investment in Tuscarora increased $0.6 million, or 13%, to $5.3 million for the
year ended December 31, 2003, compared to $4.7 million for the prior year. Tuscarora’s revenues increased primarily
due to new transportation contracts from the expansion, increasing the Partnership’s equity income from Tuscarora by
$3.2  million. This  increase  was  partially  offset  by  increased  operations  and  maintenance  expense  and  increased
depreciation  expense, both  resulting  from  Tuscarora’s  expansion. The  combined  effect  of these  increased  expenses
reduced the Partnership’s equity income from Tuscarora by $1.8 million. In addition, higher interest expense due to
Tuscarora’s expansion, partially offset by a decrease in Tuscarora’s other income, resulted in a $0.8 million reduction in
the Partnership’s equity income for the year ended December 31, 2003.

The  Partnership  recorded  general  and  administrative  expenses  of $1.7  million  and  $1.5  million  for  the  years  ended
December 31, 2003 and 2002, respectively.

The Partnership recorded financial charges of $0.1 million and $0.5 million for the years ended December 31, 2003 and
2002, respectively. This  decrease  is  primarily  attributed  to  the  Partnership  repaying  $6.0  million  of the  balance
outstanding on its Revolving Credit Facility during 2003, which reduced the balance outstanding from $11.5 million to
$5.5 million.

Year Ended December 31, 2002 Compared with the Year Ended December 31, 2001
Net  income  increased  $2.0  million, or  5%, to  $45.5  million  for  the  year  ended  December  31, 2002, compared  to 
$43.5 million for 2001. The increase is primarily due to higher equity income from the Partnership’s investments in
Northern Border Pipeline and Tuscarora.

Equity  income  from  the  Partnership’s  investment  in  Northern  Border  Pipeline  increased  $0.7  million, or  2%, to 
$42.8 million for the year ended December 31, 2002 compared to $42.1 million for 2001. Northern Border Pipeline’s
revenues increased in 2002 due to Project 2000, Northern Border Pipeline’s expansion and extension that was placed into
service  in  October  2001. This  had  the  impact  of increasing  the  Partnership’s  2002  equity  income  by  approximately 
$2.4  million. Also, favorable  interest  rates  decreased  Northern  Border  Pipeline’s  interest  expense  in  2002  further
increasing 2002 equity income to the Partnership by $1.1 million. These increases were largely offset by a reserve recorded
by Northern Border Pipeline in 2002 for costs that arose from the treatment of previously collected quantities of natural
gas used in utility operations to cover electric power costs, resulting in a $3.0 million decrease in 2002 equity income to
the Partnership (see Item 1. “Business – Business of Northern Border Pipeline Company – FERC Regulation”).

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Equity income from the Partnership’s investment in Tuscarora increased $1.1 million, or 31%, to $4.7 million for the
year ended December 31, 2002, compared to $3.6 million for 2001. This increase is attributed to incremental revenue
from new transportation contracts, the completion of Tuscarora’s expansion facilities, which were placed into service
on December 1, 2002, as well as lower interest expense, resulting from the capitalization of interest expense related to
funds being used for the expansion.

The  Partnership  recorded  general  and  administrative  expenses  of $1.5  million  and  $1.2  million  for  the  years  ended
December 31, 2002 and 2001, respectively.

The Partnership recorded financial charges of $0.5 million and $1.0 million for the years ended December 31, 2002 and
2001, respectively. This  decrease  is  primarily  attributed  to  the  Partnership  repaying  $10.0  million  of the  balance
outstanding on its Revolving Credit Facility during 2002, which reduced the balance outstanding from $21.5 million to
$11.5 million, and to lower average interest rates during 2002.

LIQUIDITY AND CAPITAL RESOURCES OF TC PIPELINES, LP

Cash Distribution Policy of TC PipeLines
During the subordination period, which generally cannot end before June 30, 2004, the Partnership makes distributions
of Available Cash in the following manner:

• First, 98%  to  the  common  units, pro  rata, and  2%  to  the  general  partner, until  there  is  distributed  for  each

outstanding common unit an amount equal to the minimum quarterly distribution for that quarter;

• Second, 98%  to  the  common  units, pro  rata, and  2%  to  the  general  partner, until  there  is  distributed  for  each
outstanding common unit an amount equal to any arrearages in payment of the minimum quarterly distribution on
the common units for that quarter and for any prior quarters during the subordination period;

• Third, 98% to the subordinated units, pro rata, and 2% to the general partner, until there is distributed for each

outstanding subordinated unit an amount equal to the minimum quarterly distribution for that quarter; and

• Thereafter, in a manner whereby the general partner has rights (referred to as incentive distribution rights) to receive

increasing percentages of excess quarterly cash distributions over specified cash distribution thresholds.

The general partner receives incentive distributions if the amount distributed with respect to any quarter exceeds the
minimum  quarterly  distribution  of $0.45  per  unit. Under  the  incentive  distribution  provisions, the  general  partner
receives 15% of amounts distributed in excess of $0.45 per unit, 25% of amounts distributed in excess of $0.5275 per
unit, and 50% of amounts distributed in excess of $0.69 per unit provided the balance has been first distributed to
unitholders  on  a  pro  rata  basis. The  amounts  that  trigger  incentive  distributions  at  various  levels  are  subject  to
adjustment in certain events, as described in the partnership agreement.

Conversion of Subordinated Units
On August 1, 2002, 936,435 subordinated units, representing one-third of the outstanding subordinated units held by
the  general  partner, upon  satisfaction  of the  financial  tests  set  forth  in  the  partnership  agreement  of TC  PipeLines,
automatically converted into an equal number of common units.

On  August  1, 2003, an  additional  936,435  subordinated  units  held  by  the  general  partner, upon  satisfaction  of the
financial tests set forth in the partnership agreement, automatically converted into an equal number of common units.

The  remaining  936,436  outstanding  subordinated  units  will, upon  satisfaction  of the  financial  tests, automatically
convert into common units on the first day after the record date for distributions for the quarter ending June 30, 2004,
and will thereafter participate, pro rata, with the other common units in distributions of Available Cash.

General
On January 30, 2004, the Partnership paid $19.5 million related to its 30% share of a capital contribution to Northern
Border  Pipeline  in  response  to  a  $65.0  million  cash  call  issued  by  Northern  Border  Pipeline  to  its  partners  on 

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T C   P I P E L I N E S ,   L P

January 27, 2004. The funds will be used by Northern Border Pipeline to repay a portion of its existing indebtedness
under the 2002 Pipeline Credit Agreement. This payment was funded through the use of cash from operations and
existing credit facilities.

On January 16, 2004, the board of directors of the general partner declared the Partnership’s 2003 fourth quarter cash
distribution. The fourth quarter cash distribution, which was paid on February 13, 2004 to unitholders of record as of
January 30, 2004, totaled $10.1 million and was paid in the following manner: $9.1 million to common unitholders
(including $1.5 million to an affiliate of the general partner as holder of 2,800,000 common units and $1.0 million to
the  general  partner  as  holder  of 1,871,870  common  units), $0.5  million  to  the  general  partner  as  holder  of the
subordinated units, $0.3 million to the general partner as the holder of incentive distribution rights, and $0.2 million
to the general partner in respect of its 2% general partner interest.

Summary of Certain Contractual Obligations

Payments Due by Period

(in millions)

Revolving Credit Facility
Total

Total

Less Than 
1 Year

1-3 Years

4-5 Years

After
5 Years

5.5
5.5

$

5.5
5.5

$ 

$

–
–

$

–
–

$

–
–

Debt and Credit Facilities
On May 28, 2003, the Partnership renewed its $40.0 million unsecured two-year revolving credit facility (TransCanada
Credit  Facility)  with  TransCanada  PipeLine  USA  Ltd., an  affiliate  of the  general  partner. The  TransCanada  Credit
Facility bears interest at the London Interbank Offered Rate (LIBOR) plus 1.25%. The purpose of the TransCanada
Credit Facility is to provide borrowings to fund capital expenditures, to fund capital contributions to Northern Border
Pipeline, Tuscarora and any other entity in which the Partnership directly or indirectly acquires an interest, to fund
working  capital  and  for  other  general  business  purposes, including  temporary  funding  of cash  distributions  to
unitholders and the general partner, if necessary. At December 31, 2003 and 2002, the Partnership had no borrowings
outstanding  under  the  TransCanada  Credit  Facility. As  at  March  12, 2004, $9.0  million  is  outstanding  under  the
TransCanada Credit Facility.

On March 8, 2004 the Partnership renewed its unsecured credit facility (Revolving Credit Facility) with Bank One, NA,
as administrative agent. Under the Revolving Credit Facility, the Partnership may borrow up to an aggregate principal
amount of $30.0 million. Loans under the Revolving Credit Facility may bear interest, at the option of the Partnership,
at a one-, two-, three-, or six-month LIBOR plus 1.25%, or at a floating rate based on the higher of the federal funds
effective  rate  plus  0.5%  and  the  prime  rate. The  Revolving  Credit  Facility  matures  on  February  28, 2006. Amounts
borrowed may be repaid in part or in full prior to that time without penalty. The Revolving Credit Facility may be used
to  finance  capital  expenditures  and  for  other  general  purposes. The  Partnership  had  $5.5  million  and  $11.5  million
outstanding under the Revolving Credit Facility at December 31, 2003 and 2002, respectively. The interest rate on the
Revolving  Credit  Facility  at  December  31, 2003  and  2002  was  2.4%  and  2.7%, respectively. As  at  March  12, 2004,
$5.5 million is outstanding under the Revolving Credit Facility.

On April 23, 2002, the Partnership filed a shelf registration statement with the SEC to sell, from time to time, up to
$200.0 million of common units representing limited partner interests and/or debt securities. The Partnership intends
to use the net proceeds for general purposes, repayment of debt, future acquisitions, capital expenditures and working
capital. As at March 12, 2004, no additional units of the Partnership had been issued.

Cash Flows from Operating Activities
Cash  flows  provided  by  operating  activities  decreased  $2.5  million, or  5%, to  $49.6  million  for  the  year  ended 
December 31, 2003, compared to $52.1 million for 2002. The decrease is primarily due to lower distributions received

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from Northern Border Pipeline in 2003 as compared to 2002. In 2003, Northern Border Pipeline was ordered by the FERC
to  refund  $10.0  million  (TC  PipeLines’ share  is  $3.0  million)  to  its  shippers  related  to  company  use  gas  (see  Item  1.
“Business – Business of Northern Border Pipeline Company – FERC Regulation”). In 2003, the Partnership’s cash from
operations  included  cash  distributions  of $45.2  million  and  $6.2  million  from  its  investments  in  Northern  Border
Pipeline and Tuscarora, respectively, compared to $49.2 million and $4.6 million, respectively, in 2002.

Cash  flows  provided  by  operating  activities  increased  $9.2  million, or  21%, to  $52.1  million  for  the  year  ended
December  31, 2002, compared  to  $42.9  million  for  2001. In  2001, the  Partnership  received  cash  distributions  of
$42.9 million and $2.4 million from Northern Border Pipeline and Tuscarora, respectively.

Cash Flows from Investing Activities
For the year ended December 31, 2003, the Partnership made equity contributions totaling $4.9 million to Tuscarora
related to Tuscarora’s expansion project, which was partially offset by a $0.8 million return of capital from Tuscarora.
As well, a $1.0 million return of capital was received by the Partnership from Northern Border Pipeline in 2003. During
2002, the Partnership made equity contributions totaling $7.6 million to Tuscarora related to Tuscarora’s expansion
project, partially offset by a $0.2 million return of capital received from Tuscarora in 2002.

The Partnership did not have any material sources or uses of cash relating to investing activities in 2001.

Cash Flows from Financing Activities
For  the  year  ended  December  31, 2003, the  Partnership  paid  cash  distributions  of $39.4  million, compared  to 
$37.4 million in 2002. The increase is due to the Partnership increasing its quarterly cash distribution from $0.525 per
unit to $0.55 per unit beginning with the 2003 second quarter cash distribution. In 2001, the Partnership paid cash
distributions of $35.2 million.

For the year ended December 31, 2003, the Partnership repaid $6.0 million of the balance outstanding on the Revolving
Credit Facility, compared to repayments of $10.0 million during 2002. The Partnership did not make any drawings or
repayments  on  the  Revolving  Credit  Facility  in  2001. At  December  31, 2003, the  Partnership  had  $5.5  million
outstanding under the Revolving Credit Facility.

Capital Requirements
On  January  30, 2004, TC  PipeLines  paid  $19.5  million  related  to  its  30%  share  of a  capital  contribution  to 
Northern Border Pipeline in response to a $65.0 million cash call issued by Northern Border Pipeline to its partners on 
January 27, 2004.

To the extent TC PipeLines has any additional capital requirements with respect to its investments in Northern Border
Pipeline  and  Tuscarora  or  makes  acquisitions  in  2004, TC  PipeLines  expects  to  finance  these  requirements  with
operating cash flows, debt and/or equity.

Impact of Enron’s Chapter 11 Filing on TC PipeLines’ Business
In 2001, Enron filed a voluntary petition for bankruptcy protection under Chapter 11 of the United States Bankruptcy
Code. For more details see “Results of Operations of Northern Border Pipeline Company – Impact of Enron’s Chapter 11
Filing on Northern Border Pipeline’s Business.”

Based on currently available information, TC PipeLines does not expect the impact of Enron’s bankruptcy protection
filing to have a material impact on the business or financial condition of Northern Border Pipeline or TC PipeLines.

TC PipeLines continues to monitor developments at Enron and to assess any impact of Enron’s Chapter 11 proceedings
on Northern Border Pipeline in light of Northern Border Pipeline’s existing agreements and relationships with Enron
and its subsidiaries, and to take all appropriate action to protect the interests of TC PipeLines and its unitholders.

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T C   P I P E L I N E S ,   L P

Outlook
On December 19, 2003, Northern Border Pipeline advised that its Management Committee had unanimously agreed to
issue equity cash calls to its partners in the total amount of $130.0 million (TC PipeLines’ share is $39.0 million) in early
2004, the first of which was issued on January 27, 2004, and $90.0 million (TC PipeLines’ share is $27.0 million) in 2007
and to change the cash distribution policy of Northern Border Pipeline as of January 1, 2004. Effective January 1, 2008,
Northern  Border  Pipeline’s  cash  distribution  policy  will  be  adjusted  to  maintain  a  consistent  capital  structure.
TC PipeLines expects to fund a portion of the 2004 equity cash calls with borrowings under its existing credit facilities.
As at March 12, 2004, the Partnership has paid Northern Border Pipeline $19.5 million related to the equity cash calls
previously discussed.

RESULTS OF OPERATIONS OF NORTHERN BORDER PIPELINE COMPANY

In  the  following  discussion  of the  results  of Northern  Border  Pipeline, all  amounts  represent  100%  of the  operations  of
Northern Border Pipeline, in which the Partnership has held a 30% interest since May 28, 1999.

The discussion and analysis of Northern Border Pipeline’s financial condition and operations are based on Northern
Border  Pipeline’s  financial  statements, which  were  prepared  in  accordance  with  accounting  principles  generally
accepted in the United States of America. The following discussion and analysis should be read in conjunction with
Northern Border Pipeline’s financial statements included elsewhere in this report.

Overview
For  Northern  Border  Pipeline, there  are  several  major  business  drivers. First, a  healthy  long-term  supply  outlook  is
critical. Because  the  primary  source  of gas  supply  that  is  transported  on  its  system  is  in  the  Western  Canadian
Sedimentary  Basin, western  Canadian  supply  trends  are  particularly  important  to  Northern  Border  Pipeline. The
current outlook for western Canadian supply looks stable for the foreseeable future however production has exceeded
new reserve additions in recent years. Increased Canadian consumption related to the extraction process for oil sands
projects as well as restrictions on gas production to protect oil sand reserves could also impact supplies of natural gas
for export. The supply outlook may be significantly enhanced over time by new Alaskan and Mackenzie Delta supplies
reaching the western Canadian pipeline grid potentially beginning by the end of this decade.

Natural gas markets are also critical to Northern Border Pipeline’s financial performance. The Northern Border pipeline
system serves natural gas markets in the upper midwestern area of the United States and accesses a major trading hub
in the Chicago area. Market growth has been steady with both heating load growth and direct end-user growth such as
power  plants  and  ethanol  plants. However, competitive  pipeline  projects  may  have  a  negative  impact  on  Northern
Border Pipeline’s profitability.

Northern Border Pipeline charges fees for transportation which are primarily fixed and are based on the amount of
capacity  reserved  for  each  shipper. Contracting  with  shippers  to  reserve  the  available  pipeline  capacity  as  existing
contracts expire is a critical factor in Northern Border Pipeline’s success. The weighted average life of Northern Border
Pipeline’s  contracts  as  of December  31, 2003  was  approximately  three  and  one  third  years. During  2003, Northern
Border Pipeline was successful in recontracting, at maximum rates, all the capacity under contracts that expired on or
before November 2003.

The  composition  of natural  gas  affects  the  volume  of natural  gas  that  is  transported  through  a  pipeline  system.
Beginning in 2000, the energy content of natural gas that Northern Border Pipeline receives at the Canadian border has
declined modestly from 1,023 British Thermal Units (Btus) per cubic feet (cf) to 1,005 Btus/cf. The Btu level affects the
heating  value  of the  natural  gas. Northern  Border  Pipeline’s  transportation  contracts  in  conjunction  with  its  tariff
define both the volume and equivalent Btu value of the gas to be transported. A reduction in the Btu level results in a
higher volume of natural gas to be transported to meet an overall equivalent Btu value of the gas. The Btu level decline
that is being experienced is primarily the result of greater processing capacity in Alberta, Canada. The change has caused

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Northern Border Pipeline to reduce its capacity by almost 2 percent to be able to maintain its high standard of system
reliability for its customers. Although Btu levels could theoretically go lower, Northern Border Pipeline advises that it
believes the Btu level will stabilize near the current level of 1,005 Btus/cf.

As was the case last year, Northern Border Pipeline is in re-contracting discussions with its customers for contracts that
will expire prior to November 1, 2004, which represents approximately 30% of its system capacity. The value of capacity
on interstate pipelines is driven by supply and demand conditions. In particular, the relationship between gas prices in
Canada and prices in the midwestern U.S. markets will determine the underlying value of transportation. The current
gas balance in western Canada is such that Northern Border Pipeline’s transportation has been commercially attractive
for available supply that is not consumed within western Canada or committed to transportation capacity on other
pipelines reaching downstream markets. To maintain an adequate gas balance in western Canada, production will need
to grow moderately in the future to meet anticipated demand primarily driven by gas consumption in the extraction
and  processing  associated  with  Canadian  oil  sands  development. Canada  holds  an  estimated  1.6  trillion  barrels  of
bitumen reserves. Bitumen, after it is extracted from sand, can be upgraded to synthesized crude oil through several
processes. The  extraction  and  processing  of bitumen  require  significant  quantities  of natural  gas. Northern  Border
Pipeline advises that it does not know how many of the announced oil sands development projects will be approved
and constructed but the demand for transportation on its pipeline system could be affected adversely by the additional
competition for Canadian gas supply that would result.

Northern Border Pipeline advises that it continues to work with producers and marketers to develop the contractual
support for a new proposed 300-mile pipeline project, the Bison Pipeline, to connect the coal bed methane reserves in
the Powder River Basin to markets served by Northern Border Pipeline. Northern Border Pipeline advises that it intends
to hold a new open season for the Bison Pipeline when production increases to levels that Northern Border Pipeline
believes will support the project. If sufficient interest commitments are received, Northern Border Pipeline advises that
it will pursue regulatory approvals.

Northern Border Pipeline advises that it will continue to focus on safe, efficient, and reliable operations and the further
development of its pipeline. Northern Border Pipeline further advises that it is working to maintain its position as a low
cost transporter of Canadian gas to the midwestern U.S. and provide highly valued services to its customers. Growth may
occur through incremental projects intended to access new markets or supply areas and supported by long-term contracts.

Critical Accounting Policies and Estimates
Certain amounts included in or affecting Northern Border Pipeline’s financial statements and related disclosures must
be estimated, requiring Northern Border Pipeline to make certain assumptions with respect to values or conditions that
cannot  be  known  with  certainty  at  the  time  the  financial  statements  are  prepared. The  preparation  of financial
statements  in  conformity  with  accounting  principles  generally  accepted  in  the  United  States  of America  requires
management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure
of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those estimates. Any effects on Northern Border
Pipeline’s business, financial position or results of operations resulting from revisions to these estimates are recorded
in the period in which the facts that gave rise to the revision become known.

Northern  Border  Pipeline’s  significant  accounting  policies  are  summarized  in  Note  2  –  Notes  to  Northern  Border
Pipeline’s  Financial  Statements  included  elsewhere  in  this  report. Certain  of Northern  Border  Pipeline’s  accounting
policies are of more significance in its financial statement preparation process than others. Northern Border Pipeline’s
accounting policies conform to Statement of Financial Accounting Standards (SFAS) No. 71, “Accounting for the Effects
of Certain  Types  of Regulation.” Accordingly, certain  assets  that  result  from  the  regulated  ratemaking  process  are
recorded that would not be recorded under accounting principles generally accepted in the United States of America
for nonregulated entities. Northern Border Pipeline continually assesses whether the regulatory assets are probable of

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T C   P I P E L I N E S ,   L P

future recovery by considering such factors as regulatory changes and the impact of competition. If future recovery
ceases to be probable, Northern Border Pipeline would be required to write-off the regulatory assets at that time. At
December 31, 2003, Northern Border Pipeline has reflected regulatory assets of $8.2 million, which are being recovered
from its shippers over varying periods of time.

Northern Border Pipeline’s long-lived assets are stated at original cost. Northern Border Pipeline must use estimates in
determining  the  economic  useful  lives  of those  assets. For  utility  property, no  retirement  gain  or  loss  is  included  in
income except in the case of retirements or sales of entire regulated operating units. The original cost of utility property
retired is charged to accumulated depreciation and amortization, net of salvage and cost of removal.

Northern Border Pipeline’s accounting for financial instruments is in accordance with SFAS No. 133, “Accounting for
Derivative Instruments and Hedging Activities.” SFAS No. 133 requires that every derivative instrument be recorded on
the balance sheet as either an asset or liability measured at its fair value. The statement requires that changes in the
derivative’s  fair  value  be  recognized  currently  in  earnings  unless  specific  hedge  accounting  criteria  are  met. Special
accounting for qualifying hedges allows a derivative’s gains and losses to offset related results on the hedged item in the
income  statement. At  December  31, 2003, Northern  Border  Pipeline’s  balance  sheet  included  assets  from  derivative
financial instruments of $16.6 million.

Results of Operations
Northern  Border  Pipeline’s  net  income  to  partners  was  $148.2  million  in  2003, compared  to  net  income  of
$142.7 million in 2002 and $140.5 million in 2001. Northern Border Pipeline’s 2003 operating results benefited from
increased  operating  revenues  from  Northern  Border  Pipeline’s  Order  637  Compliance  filing  which  went  into  effect
October 1, 2003 and the ability to enter into short-term contracts effective November 1, 2003, the re-contracting of
capacity previously held by Enron North America Corp. (ENA), and reductions in interest expense due to lower interest
rates. Partially  offsetting  these  increases  to  Northern  Border  Pipeline’s  operating  results  were  higher  operations  and
maintenance expenses for 2003 as compared to 2002. Northern Border Pipeline’s increase in net income in 2002 over
2001 resulted from reductions in interest rates, which reduced its interest expense for 2002 as compared to 2001. In
addition, Northern Border Pipeline realized increased operating revenues in 2002 resulting from Project 2000, Northern
Border Pipeline’s expansion and extension placed in service in October 2001. Northern Border Pipeline’s 2001 results
were reduced by reserves for uncollectible receivables.

Operating revenues were $324.2 million in 2003, $321.1 million in 2002 and $313.1 million in 2001. The $3.1 million
increase  in  operating  revenues  in  2003  over  2002  resulted  primarily  from  additional  revenues  of approximately 
$1.8 million related to the re-contracted capacity of ENA contracts. ENA filed for Chapter 11 bankruptcy protection in
December  2001  (see “Impact  Of Enron’s  Chapter  11  Filing  On  Northern  Border  Pipeline’s  Business”). In  addition,
Northern  Border  Pipeline  recognized  revenues  from  its  ability  to  now  offer  short-term  firm  contracts  and  also
transportation service beyond a shipper’s contracted transportation path. The increase in operating revenues in 2002
over 2001 was primarily due to additional revenues of approximately $10.3 million associated with the completion of
Project 2000 in October 2001. The impact of the additional revenues associated with Project 2000 was partially offset
by uncollected revenues associated with the transportation capacity formerly held by ENA. For 2002, the revenues lost
on this capacity totaled approximately $1.8 million.

Operations and maintenance expenses were $43.8 million in 2003, $41.4 million in 2002 and $33.7 million in 2001. The
2003 expense included a $3.1 million charge for Northern Border Pipeline’s allocation from Northern Plains related to
the  Enron  cash  balance  plan  under  funding  (see “  Results  of Operations  of Northern  Border  Pipeline  Company  –
Impact of Enron’s Chapter 11 Filing on Northern Border Pipeline’s Business”). In 2003, Northern Border Pipeline also
had increases in salaries and benefits, rights-of-way damages, and telecommunication expenses offset by decreases in
electric power costs, as compared to 2002. The 2002 expense included a $10.0 million reserve for costs associated with

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the treatment of previously collected quantities of natural gas used in utility operations to cover electric power costs.
The FERC ordered refunds for these costs in 2003 (see Item 1. “Business – Business of Northern Border Pipeline – FERC
Regulation”).The 2002 expense also included an increase in regulatory commission expense, and decreases in employee
benefit expense, administrative expense, and bad debt expense as compared to 2001.

Depreciation and amortization expense was $57.8 million in 2003, $58.7 million in 2002 and $57.5 million in 2001. The
decrease from 2002 to 2003 primarily reflects asset retirements. The increase between 2001 and 2002 reflects additional
expense for assets related to Project 2000, placed in service in October 2001.

Taxes other than income were $29.6 million in 2003, $28.4 million in 2002 and $25.6 million in 2001. The increase in
2003 from 2002 is due primarily to a refund from Minnesota for previously paid use taxes. The decrease in taxes other
than  income  in  2002  from  2001  was  due  primarily  to  adjustments  to  ad  valorem  taxes. Northern  Border  Pipeline
periodically reviews and adjusts its estimates of ad valorem taxes. Reductions to previous estimates in 2001 exceeded
reductions  to  previous  estimates  in  2002  by  approximately  $2.1  million. As  a  result  of a  ruling  by  the  Minnesota
Supreme  Court, Northern  Border  Pipeline  filed  for  a  refund  of use  taxes  previously  paid  on  exempt  purchases.
Northern Border Pipeline received the refund in March 2002.

Interest expense was $44.9 million in 2003, $51.5 million in 2002 and $55.4 million in 2001. Interest expense for both
2003 and 2002 decreased from prior year levels due to a decrease in Northern Border Pipeline’s average interest rate as
well as a decrease in its average debt outstanding. The 2001 results included $0.9 million of interest expense capitalized
primarily related to the construction of Project 2000 facilities.

Other income (expense) was $0.1 million in 2003, $1.8 million in 2002 and ($0.4 million) in 2001. In 2003, Northern
Border Pipeline recorded expense of approximately $0.6 million for a repayment of amounts previously received for
vacated microwave frequency bands, interest expense of $0.3 million due to the FERC-ordered refunds of electric power
costs and $0.2 million of interest income received related to a sales tax refund on exempt purchases. The amount for
2002 includes approximately $0.6 million for amounts received for previously vacated microwave frequency bands and
income of $0.2 million due to a reduction in reserves previously established. The amount for 2001 includes a charge of
approximately  $1.5  million  for  an  uncollectible  receivable  from  a  telecommunications  company  that  had  purchased
excess capacity on Northern Border Pipeline’s communication system and a $0.7 million charge for reserves established.
Northern Border Pipeline recorded an allowance for equity funds used during construction of $0.9 million in 2001
primarily due to the construction of Project 2000 facilities.

LIQUIDITY AND CAPITAL RESOURCES OF NORTHERN BORDER PIPELINE COMPANY

Cash Distribution Policy of Northern Border Pipeline
Under the terms of the cash distribution policy of Northern Border Pipeline, distributions to the general partners of
Northern Border Pipeline are to be made on a proportionate basis according to each general partner’s capital account
balance. The Northern Border Pipeline management committee determines the amount and timing of distributions. In
December, 2003, Northern  Border  Pipeline’s  management  committee  voted  to, among  other  things, change  its  cash
distribution  policy  effective  January  1, 2004. Under  this  new  policy, cash  distributions  are  based  upon  100%  of
distributable cash flow which is earnings before interest, taxes, depreciation and amortization less interest expense and
maintenance capital expenditures. Effective January 1, 2008, the cash distribution policy will be adjusted to maintain a
consistent capital structure at a level to be determined. Prior to January 1, 2004, cash distributions were computed as
the sum of 100% of net income, excluding specific non-cash items, 100% of the current portion of any allowance for
income taxes and 35% of the sum of deferred tax expense, depreciation expense and amortization of regulatory assets,
minus 35% of maintenance capital expenditures. Cash distributions are currently made by Northern Border Pipeline
on a quarterly basis approximately one month after the end of the quarter.

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T C   P I P E L I N E S ,   L P

Summary of Certain Contractual Obligations

Payments Due by Period

(in millions)

Senior Notes due 2007
Senior Notes due 2009
Senior Notes due 2021
Credit Agreement due 2005
Operating Leases (1)

Total

Total

Less Than
1 Year

1-3 Years

4 -5 Years

$ 225.0
200.0
250.0
131.0
19.3

$  825.3

$

$ 

–
–
–
–
5.8

5.8

$ 225.0
–
–
131.0
4.8

$  360.8

$

–
200.0
–
–
4.8

$  204.8

$  253.9

After 
5 Years

$

–
–
250.0
–
3.9

(1)

See Note 7 – Notes to Northern Border Pipeline’s Financial Statements.

Debt and Credit Facilities
Northern Border Pipeline entered into a $175 million three-year credit agreement (2002 Pipeline Credit Agreement)
with  certain  financial  institutions  in  May  2002. The  2002  Pipeline  Credit  Agreement  replaced  a  previous  credit
agreement. The  2002  Pipeline  Credit  Agreement  is  to  be  used  to  refinance  existing  indebtedness  and  for  general
business purposes. At December 31, 2003, $131 million was outstanding under the 2002 Pipeline Credit Agreement at
an average interest rate of 1.95%. The 2002 Pipeline Credit Agreement requires the maintenance of a ratio of EBITDA
(net income plus interest expense, income taxes and depreciation and amortization) to interest expense of greater than
3 to 1. The 2002 Pipeline Credit Agreement also requires the maintenance of the ratio of indebtedness to EBITDA of
no more than 4.5 to 1. At December 31, 2003, Northern Border Pipeline was in compliance with these covenants.

At  December  31, 2002, Northern  Border  Pipeline  had  outstanding  $65  million  of Series  D  Senior  Notes  issued  in  a 
$250  million  private  placement  under  a  July  1992  note  purchase  agreement. The  Series  D  Senior  Notes  matured  in
August  2003. Northern  Border  Pipeline  borrowed  under  the  2002  Pipeline  Credit  Agreement  to  repay  the  Series  D
Senior Notes.

In April 2002, Northern Border Pipeline completed a private offering of $225 million of 6.25% Senior Notes due 2007
(2002  Pipeline  Senior  Notes). In  September  2001, Northern  Border  Pipeline  completed  a  private  offering  of
$250 million of 7.50% Senior Notes due 2021 (2001 Pipeline Senior Notes). In August 1999, Northern Border Pipeline
completed a private offering of $200 million of 7.75% Senior Notes due 2009 (1999 Pipeline Senior Notes). The 2002
Pipeline Senior Notes, 2001 Pipeline Senior Notes and 1999 Pipeline Senior Notes (collectively Pipeline Senior Notes)
were subsequently exchanged in registered offerings for notes with substantially identical terms. The indentures under
which  the  Pipeline  Senior  Notes  were  issued  do  not  limit  the  amount  of unsecured  debt  Northern  Border  Pipeline
incurs, but do contain material financial covenants, including restrictions on incurrence of secured indebtedness. The
proceeds from the Pipeline Senior Notes were used to reduce indebtedness outstanding.

Northern Border Pipeline entered into interest rate swap agreements with notional amounts totaling $225 million in
May 2002. Under the interest rate swap agreements, Northern Border Pipeline makes payments to counter parties at
variable rates based on the London Interbank Offered Rate and in return receives payments based on a 6.25% fixed rate.
The  swaps  were  entered  into  to  hedge  the  fluctuations  in  the  market  value  of the  2002  Pipeline  Senior  Notes.
At December 31, 2003, the average effective interest rate on Northern Border Pipeline’s interest rate swap agreements
was 2.31%.

Northern  Border  Pipeline’s  short-term  liquidity  needs  will  be  met  by  operating  cash  flows  and  through  the  2002
Pipeline Credit Agreement. Northern Border Pipeline’s long-term capital needs may be met through the ability to issue
long-term indebtedness.

Cash Flows From Operating Activities
Cash flows provided by operating activities were $193.3 million in 2003, $224.4 million in 2002 and $197.3 million in 2001.
The $31.1 million decrease in 2003 from 2002 was primarily due to the payment of the FERC-ordered refunds related to

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the  electric  power  costs  and  the  discontinuance  of certain  shipper  transportation  repayments. The  $27.1  million
increase in 2002 from 2001 was primarily due to an increase in operating revenues and the impact of rate case refunds
in 2001. In 2001, Northern Border Pipeline realized net cash outflows of approximately $4.7 million related to its rate
case  refunds. During  the  first  quarter  of 2001, Northern  Border  Pipeline  made  refunds  to  its  shippers  totaling 
$6.8  million, which  included  approximately  $2.1  million  collected  in  the  first  quarter  of 2001  with  the  remainder
collected previously.

Cash Flows From Investing Activities
Cash used in investing was $12.9 million for 2003 as compared to $9.2 million for 2002 and $54.7 million for 2001.
The 2003, 2002 and 2001 amounts include $0.9 million, $0.3 million and $49.0 million, respectively, for Project 2000.
The  remaining  capital  expenditures  for  2003, 2002  and  2001  were  primarily  related  to  renewals  and  replacements 
of existing facilities.

Total capital expenditures for 2004 are estimated to be $14.0 million primarily related to renewals and replacements of
existing facilities. Northern Border Pipeline advises that it currently anticipates funding its 2004 capital expenditures
primarily by borrowing on its credit facility and using operating cash flows.

Cash Flows From Financing Activities
Cash  flows  used  in  financing  activities  were  $177.0  million  for  the  year  ended  December  31, 2003  as  compared  to 
$200.8 million for the same period in 2002 and $160.7 million for the same period in 2001. Distributions to Northern
Border Pipeline’s partners were $154.0 million, $164.1 million and $143.0 million for 2003, 2002 and 2001, respectively.
The decrease from 2002 to 2003 in distributions was primarily due to the impact of the electric power refunds ordered
by FERC on March 27, 2003. The increase from 2001 to 2002 in distributions was primarily due to Northern Border
Pipeline’s improved operating results.

For  2003, 2002  and  2001, Northern  Border  Pipeline’s  borrowings  on  long-term  debt  totaled  $142.0  million,
$431.9 million and $385.4 million, respectively, which were primarily used to repay previously existing indebtedness.
For  2002, Northern  Border  Pipeline  received  net  proceeds  from  the  2002  Pipeline  Senior  Notes  of approximately 
$223.5  million. The  net  proceeds  from  the  issuance  of the  2001  Pipeline  Senior  Notes  totaled  approximately 
$247.2 million in 2001. Northern Border Pipeline’s borrowings under its credit agreements were $131.0 million in 2003,
$207.0 million in 2002 and $136.0 million in 2001. Total payments on debt were $165.0 million, $468.0 million and
$374.0 million in 2003, 2002 and 2001, respectively.

In April 2002, Northern Border Pipeline received $2.4 million from the termination of forward starting interest rate
swaps upon issuance of the 2002 Pipeline Senior Notes (see Note 6 – Notes to Northern Border Pipeline’s Financial
Statements). In September 2001, Northern Border Pipeline paid approximately $4.1 million to terminate interest rate
swap  agreements  upon  issuance  of the  2001  Pipeline  Senior  Notes. The  swaps  were  entered  into  to  hedge  the
fluctuations in Treasury rates and spreads between the execution date of the swaps and the issuance of the 2002 and
2001  Pipeline  Senior  Notes. For  2001, Northern  Border  Pipeline  recognized  a  decrease  in  bank  overdraft  of
$22.4  million. At  December  31, 2000, Northern  Border  Pipeline  reflected  the  bank  overdraft  primarily  due  to  rate
refund checks outstanding.

Impact of Enron’s Chapter 11 Filing on Northern Border Pipeline’s Business
On December 2, 2001, Enron filed a voluntary petition for bankruptcy protection under Chapter 11 of the United States
Bankruptcy  Code. Certain  wholly  owned  Enron  subsidiaries  also  filed  for  Chapter  11  bankruptcy  protection  on
December 2, 2001 and thereafter. Northern Border Pipeline has not filed for bankruptcy protection. Northern Plains,
Pan Border and Northwest Border are Northern Border Partners’ general partners. Each of Northern Plains and Pan
Border are wholly owned subsidiaries of Enron, and Northwest Border is a wholly owned subsidiary of TransCanada.
Northern Plains and Pan Border were not among the Enron companies filing for Chapter 11 protection.

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T C   P I P E L I N E S ,   L P

The business of Enron and its subsidiaries that have filed for bankruptcy protection are currently being administered
under the direction and control of the bankruptcy court. An unsecured creditors committee has been appointed in the
Chapter  11  cases. The  creditors  committee  is  responsible  for  general  oversight  of the  bankruptcy  case, and  has  the
power, among other things, to: investigate the acts, conduct, assets, liabilities, and financial condition of the debtor, the
operation  of the  debtor’s  business  and  the  desirability  of the  continuance  of such  business; participate  in  the
formulation of a plan of reorganization; and file acceptances or rejections to such a plan.

On  June  25, 2003, Enron  announced  the  organization  of CrossCountry  Energy  Corp., a  newly  formed  holding
company, to hold, among other assets, Enron’s ownership interest in Northern Plains and Pan Border. The motion filed
in Bankruptcy Court to approve the proposed transfer of those ownership interests was approved on September 25, 2003.
An amended order on December 18, 2003 made the approval applicable to CrossCountry Energy, LLC (CrossCountry).
In connection with the closing, CrossCountry and Enron will enter into a transition services agreement pursuant to
which Enron will provide to CrossCountry, on an interim, transitional basis, various services, including but not limited
to  (i)  information  technology  services, (ii)  accounting  system  usage  rights  and  administrative  support  (iii)  contract
management and purchasing support services (iv) corporate secretary services, and (v) payroll, employee benefits and
administrative services. In turn, these services are provided to Northern Border Pipeline through Northern Plains.

On  January  9, 2004, the  Bankruptcy  Court  approved  as  complete  the  amended  joint  Chapter  11  plan  and  related
disclosure statement (Chapter 11 Plan). The Chapter 11 Plan has been submitted to the creditors for approval. Several
creditors have filed objections to the Chapter 11 Plan, including the Pension Benefit Guaranty Corporation (PBGC).
The Bankruptcy Court has scheduled a hearing for April 20, 2004 on the approval. Under the Chapter 11 Plan, it is
anticipated that if CrossCountry is not sold to a third party, as permitted by the Chapter 11 Plan, its shares would be
distributed directly or indirectly to creditors of the debtors.

Enron’s  filing  for  bankruptcy  protection  has  impacted  Northern  Border  Pipeline. At  the  time  of the  filing  of the
bankruptcy  petition, Northern  Border  Pipeline  had  a  number  of contractual  relationships  with  Enron  and  its
subsidiaries. Northern Plains provided and continues to provide operating and administrative services for Northern
Border Pipeline. Northern Plains has continued to meet its operational and administrative service obligations under the
existing agreement, and, in its Form 10-K for the year ended December 31, 2003, Northern Border Pipeline states that
it believes Northern Plains will continue to do so.

ENA, a wholly owned subsidiary of Enron that is in bankruptcy, was a party to transportation contracts which obligated
ENA to pay for 3.5% of Northern Border Pipeline’s capacity. In 2002, ENA rejected and terminated all of its contracts
on the Northern Border pipeline system. Northern Border Pipeline filed claims against ENA for damages for breach of
contract and other claims. These claims are unsecured claims against Enron and ENA’s bankruptcy estate. Northern
Border Pipeline advises that it is uncertain regarding the ultimate amount of damages for breach of contract or other
claims  that  Northern  Border  Pipeline  will  be  able  to  establish  in  the  bankruptcy  proceeding, and  Northern  Border
Pipeline cannot predict the amounts that it will collect or the timing of collection. Northern Border Pipeline further
states that it believes, however, that any such delay in collecting or failure to collect will not have a material adverse effect
on its financial condition.

On December 31, 2003, Enron filed a motion seeking approval of the Bankruptcy Court to provide additional funding
to, and for authority to terminate the Enron Corp. Cash Balance Plan (Plan) and certain other defined benefit plans of
Enron’s affiliated in ‘standard terminations’ within the meaning of Section 4041 of the Employee Retirement Income
Security Act of 1974, as amended (ERISA). Such standard terminations would satisfy all of the obligations of Enron and
its affiliates with respect to funding liabilities under the Plan. In addition, a standard termination would eliminate the
contingent claims of the PBGC against Enron and its affiliates with respect to the funding liabilities under the Plan. On
January 30, 2004, the Bankruptcy Court entered an order authorizing termination, additional funding and other actions
necessary  to  effect  the  relief requested. Pursuant  to  the  Bankruptcy  Court  order, any  contributions  to  the  Plan  are

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subject to the prior receipt of a favorable determination by the Internal Revenue Service that the Plan is tax-qualified
as of the date of termination. In addition, the Bankruptcy Court order provides that the rights of PBGC and others to
assert that their filed claims have not been released or adjudicated as a result of the Bankruptcy order and Enron and
all other interested parties retained the right to assert that such claims had been adjudicated or released.

Northern  Border  Pipeline  advises  that  Enron  management  has  informed  Northern  Border  Pipeline  that  it  will  seek
funding contributions from each member of its ERISA controlled group of corporations that employs or employed
individuals who are, or were, covered under the Plan. Northern Border Pipeline further advises that Northern Plains
has advised Northern Border Pipeline that Northern Plains is a member of a controlled group of corporations covered
under the Plan and that an amount of approximately $3.1 million has been estimated for Northern Border Pipeline’s
share of Northern Plains’ proportionate share of the up to $200 million estimated termination costs authorized by the
Bankruptcy Court order. Under the operating agreement with Northern Plains, these increased costs may be Northern
Border Pipeline’s responsibility. Northern Border Pipeline has accrued this amount to satisfy claims of reimbursement
for these termination costs. While the final amounts have not been determined, Northern Border Pipeline advises that
it believes this accrual is adequate to cover the allocation of these costs to Northern Border Pipeline.

Enron is the grantor of the Enron Gas Pipeline Employee Benefit Trust (the Trust), which when taken together with the
Enron Corp. Medical Plan for Inactive Participants (the Medical Plan) constitutes a “voluntary employees’ beneficiary
association” or “VEBA” under Section 501(c)(9) of the Internal Revenue Code. In October 2002, Northern Plains was
advised that Enron had notified the committee that has administrative and fiduciary oversight related to the Trust and
the Medical Plan, that Enron had made the determination to begin necessary steps to partition the assets of the Trust
and  the  related  liabilities  of the  Medical  Plan  among  all  of the  participating  employers  of the  Trust. The  Trust  was
established as a regulatory requirement for inclusion of certain costs for post-employment medical benefits in the rates
established  for  the  affected  pipelines, including  Northern  Border  Pipeline. Enron  requested  the  enrolled  actuary  to
prepare an analysis and recommendation for the allocation of the Trust’s assets and associated liabilities among all the
participating employers. On July 22, 2003, Enron sought approval of the Bankruptcy Court to terminate the Trust and
to distribute its assets among certain identified pipeline companies, one being Northern Plains. If Enron’s relief as requested
is granted, Northern Plains would assume retiree benefit liabilities, estimated as of June 30, 2002, of $1.9 million with
an asset allocation of $0.8 million. An  objection to the motion has been filed and no hearing date has been set. An
additional actuary has been engaged by Enron to review the analysis and recommendations for allocations. There can
be no assurances that the allocation of liabilities and assets will not change from those set forth in the motion.

Enron’s  filing  for  bankruptcy  protection  and  related  developments  have  had  other  impacts  on  Northern  Border
Pipeline’s  business  and  management. Numerous  shareholder  and  employee  class  action  lawsuits  have  been  initiated
against Enron, its former independent accountants, legal advisors, executives, and board members. Enron has received
several requests for information from different federal and state agencies, including the FERC, and committees of the
United  States  House  of Representatives  and  Senate. Some  of the  information  requested  from  Enron  may  include
information  about  Northern  Border  Pipeline. While  Northern  Border  Pipeline  has  not  been  subject  to  these
investigations  or  lawsuits, it  is  possible  that  in  the  documentation  production  by  Enron  and  others, confidential
proprietary or commercially sensitive information concerning Northern Border Pipeline may have been produced. It is
also possible that some of this information may be made available to the public.

While Northern Plains and Pan Border have not filed for Chapter 11 bankruptcy protection, their stock is owned by
Enron, which is in bankruptcy. As noted above, Enron could sell its interest in Northern Plains and/or Pan Border, or
take other action with respect to their investment in Northern Border Pipeline. Enron could also cause Northern Plains
and Pan Border to file for bankruptcy protection. In its Form 10-K for the year ended December 31, 2003, Northern
Border  Pipeline  states  that  it  has  had  no  indication  from  Enron  that  it  intends  to  cause  such  companies  to  file  for
bankruptcy protection.

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T C   P I P E L I N E S ,   L P

Northern Border Pipeline is managed by a four-member management committee. Three representatives are designated
by Northern Border Partners, with each of its general partners selecting one representative, and one representative is
designated by TC PipeLines. The vote among Northern Border Partners’ representatives is in proportion to their general
partner interests in Northern Border Partners. As a result, the 70% voting interest of Northern Border Partners’ three
representatives  is  allocated  35%, 22.75%  and  12.25%  among  Northern  Plains, Pan  Border  and  Northwest  Border,
respectively. If Enron were to sell the stock of Northern Plains and Pan Border, the purchaser would have the right to
appoint  a  majority  of Northern  Border  Pipeline’s  management  committee  and  control  Northern  Border  Pipeline’s
activities, except for those activities requiring a unanimous vote which include changes to Northern Border Pipeline’s
cash distribution policy, certain expansions and extensions of the pipeline, some transfers of general partner interests
and settlement of rate cases.

If Northern  Plains  and  Pan  Border  were  to  file  for  bankruptcy  protection, Northern  Border  Partners’ Partnership
Agreement  provides  that  they  would  automatically  be  deemed  to  have  withdrawn  as  general  partners  of Northern
Border  Partners. It  is  possible  that  the  enforceability  of the  automatic  withdrawal  provisions  in  this  partnership
agreement may be challenged. The success and impact of a challenge are unknown. Upon the occurrence of such an
event of withdrawal, the remaining general partner of Northern Border Partners would have the right to purchase the
withdrawing partners’ general partnership interests. If the remaining general partner does not purchase such general
partnership  interests, the  limited  partners  of Northern  Border  Partners  would  have  the  right  to  elect  new  general
partners. In the event that the remaining general partner does not elect to purchase the general partner interests or a
successor is not so elected by the limited partners, then the partnership shall be dissolved. In either event, the party
acquiring  the  general  partner  interests  currently  held  by  Northern  Plains  and  Pan  Border  would  have  the  right  to
appoint  a  majority  of Northern  Border  Pipeline’s  management  committee  and  control  Northern  Border  Pipeline’s
activities, except for those activities requiring a unanimous vote.

Northern  Plains  also  serves  as  Northern  Border  Pipeline’s  operator. If Northern  Plains  were  to  file  for  bankruptcy
protection, it could potentially be removed as operator. Northern Border Pipeline’s credit agreement provides that it
would be an event of default thereunder if Northern Plains were replaced as operator without the consent of the lenders.

Other  than  the  items  identified  above, Northern  Border  Pipeline  states  in  its  Form  10-K  for  the  year  ended 
December 31, 2003 that it is not aware of any claims made against it that arise out of the Enron bankruptcy cases. Northern
Border  Pipeline  continues  to  monitor  developments  at  Enron, to  assess  the  impact  on  Northern  Border  Pipeline  of its
existing agreements and relationships with Enron and its subsidiaries, and to take appropriate action to protect its interests.

Public Utility Holding Company Act (PUHCA) Regulation
Besides  its  ownership  in  Northern  Plains  and  Pan  Border, all  of the  common  stock  of Portland  General  Electric
Company (PGE) is owned by Enron. As the owner of PGE’s common stock, Enron is a holding company for purposes
of the Public Utility Holding Company Act of 1935 (PUHCA). Following Enron’s acquisition of PGE in 1997, Enron
annually filed a statement claiming an exemption from all provisions of PUHCA (except the provision which addresses
the  acquisition  of public  utility  company  affiliates)  under  Section  3(a)(1). Due  to  Enron’s  bankruptcy  filing  in
December  2001, Enron  was  no  longer  able  to  provide  necessary  financial  information  needed  to  file  the  exemption
statement. As a result, in February 2002, Enron applied to the SEC for an order of exemption under Sections 3(a)(1),
3(a)(3) and 3(a)(5).

On December 29, 2003, the SEC issued an order denying the two applications filed by Enron seeking exemption as a
public utility holding company under Sections 3(a)(1), 3(a)(3) and 3(a)(5) of PUHCA. The SEC order found, relative
to the application under Section 3(a)(1), that Enron’s subsidiary, PGE, is not predominantly and substantially intrastate
in character and does not carry on business substantially in a single state. Relative to the application under Sections
3(a)(3) and 3(a)(5), the SEC found that Enron was unable to establish that it is only incidentally a holding company
and that it derives no material part of its income from an electric utility subsidiary.

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On December 31, 2003, Enron and other related entities filed an application under Section 3(a)(4) of PUHCA (the
3(a)(4)  Application). This  application  claims, for  each  of the  applicants, an  exemption  as  a  public  utility  holding
company based on the temporary nature of the applicants’ current or proposed interest in PGE under the Chapter 11
Plan filed by Enron and certain of its subsidiaries. By SEC order entered January 30, 2004, the hearing date on Enron’s
pending application for exemption under PUHCA was postponed until February 9, 2004 and by SEC order entered
February  6, 2004, the  hearing  date  was  postponed  until  further  notice. On  March  9, 2004, pursuant  to  an  offer  of
settlement  that  had  been  previously  made  to  the  SEC, Enron  withdrew  the  3(a)(4)  Application  and  registered  as  a
holding company under PUHCA. Immediately after Enron registered, the SEC issued two orders, one granting Enron
and  its  subsidiaries  authority  to  undertake  certain  transactions  without  further  authorization  from  the  SEC  under
PUHCA (referred to as the Omnibus Order) and the other approving Enron’s Fifth Amended Bankruptcy Plan (referred
to as the Plan Order).

The Omnibus Order authorizes, among other items, certain transactions specific to Northern Border Partners, L.P. and
its  subsidiaries, including  authority  for  Northern  Border  Partners  and  Northern  Border  Pipeline  to  declare  and  pay
distributions out of capital. Further, the Omnibus Order authorizes Northern Border Partners to invest as much as an
additional $1 billion in natural gas gathering, processing, storage and transportation assets and to issue and sell debt
and equity securities as may be required to fund such investments or acquisitions. The authorizations are effective until
the  earlier  of the  deregistration  of Enron  under  PUHCA  or  July  31, 2005. Northern  Border  Pipeline  advises  that  it
believes that the authority relating to Northern Border Partners and its affiliates in the Omnibus Order minimizes the
likelihood that its business will be adversely impacted by Enron’s registration under PUHCA.

However, PUHCA  imposes  a  number  of restrictions  on  the  operations  of a  registered  holding  company  and  its
subsidiaries  within  the  registered  holding  company  system  that  can  become  materially  more  expensive  and
cumbersome  than  operations  by  companies  that  are  not  subject  to, or  exempt, from  PUHCA. As  a  subsidiary  of a
registered  holding  company, Northern  Border  Pipeline  is  subject  to  regulation  by  the  SEC  with  respect  to  the
acquisition of the securities of public utilities; the acquisition of assets and interests in any other business, declaration
and payment of certain cash distributions; intra-system borrowings or indemnifications; sales, services or construction
transactions with other holding company system companies; and the issuance of debt or equity securities, among other
matters. To the extent those regulated activities are not approved under the Omnibus Order or otherwise exempt under
various rules and regulations promulgated under PUHCA, Northern Border Pipeline advises that it would need to seek
additional approvals from the SEC. At this time, Northern Border Pipeline advises that it does not believe there is a need
for it to seek any additional authorizations from the SEC in order to conduct its operations. Nevertheless, Northern
Border Pipeline advises that there can be no assurance that PUHCA will not have an adverse impact on its operations
as a result of Enron’s registration as a holding company.

While TC PipeLines currently does not anticipate that the registration of Enron as a holding company under PUHCA
will  have  a  material  impact  on  its  ability  to  conduct  its  operations  or  to  meet  its  obligations, further  regulatory
developments  could  adversely  impact  Northern  Border  Pipeline  and  therefore  have  an  indirect  adverse  impact  on
TC PipeLines’ operations.

RESULTS OF OPERATIONS OF TUSCARORA GAS TRANSMISSION COMPANY

In the following discussion of the results of Tuscarora, all amounts represent 100% of the operations of Tuscarora, in which
the Partnership has held a 49% interest since September 1, 2000.

Overview
Tuscarora is a Nevada general partnership formed in 1993. Its general partners are TC Tuscarora Intermediate Limited
Partnership, a direct subsidiary of TC PipeLines, which holds a 49% general partner interest, Tuscarora Gas Pipeline Co.,
a wholly owned subsidiary of Sierra Pacific Resources, which holds a 50% general partner interest and TCPL Tuscarora
Ltd., an indirect wholly owned subsidiary of TransCanada, which holds a 1% general partner interest.

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T C   P I P E L I N E S ,   L P

The management of Tuscarora is overseen by a management committee that determines the policies of, has authority
over the affairs of, and approves the actions of Tuscarora. The management committee participates in the management
of the construction, maintenance and operation of the Tuscarora pipeline system.

Tuscarora  owns  a  240-mile, 20-inch  diameter, United  States  interstate  pipeline  system  that  originates  at  an
interconnection point with facilities of Gas Transmission Northwest Corporation (GTN) near Malin, Oregon and runs
southeast through northeastern California and northwestern Nevada. The Tuscarora pipeline system terminates near
Wadsworth, Nevada. Deliveries are also made directly to the local gas distribution system of Sierra Pacific Resources.
Along its route, deliveries are made in Oregon, northern California and northwestern Nevada.

The Tuscarora pipeline system was constructed in 1995 and was placed into service in December 1995. In January 2001,
Tuscarora  completed  construction  of the  Hungry Valley  lateral, a  14-mile, 16-inch  pipeline  extension  that  serves  as
Tuscarora’s second connection into Reno, Nevada. On December 1, 2002, Tuscarora completed and placed into service
another expansion of its pipeline system. The 2002 Tuscarora expansion consisted of two compressor stations and an
11-mile pipeline extension from the previous terminus of the Tuscarora pipeline system near Reno, Nevada to Wadsworth,
Nevada. The expansion increased Tuscarora’s contracted capacity from 127 mmcfd to approximately 180 mmcfd. The new
capacity is contracted under long-term firm transportation contracts ranging from ten to fifteen years.

Critical Accounting Policy
Tuscarora’s accounting policies conform to SFAS No. 71, “Accounting for the Effects of Certain Types of Regulation.”
Accordingly, certain assets that result from the regulated ratemaking process are recorded that would not be recorded
under generally accepted accounting principles for nonregulated entities.

Year Ended December 31, 2003 Compared to the Year Ended December 31, 2002
Tuscarora’s  net  income  increased  $1.4  million, or  13%, to  $11.8  million  for  the  year  ended  December  31, 2003,
compared to $10.4 million in 2002. This increase is primarily due to higher revenues, partially offset by higher costs and
expenses and higher depreciation expense.

Revenues generated by Tuscarora increased $6.6 million, or 29%, to $29.7 million for the year ended December 31, 2003,
compared  to  $23.1  million  for  2002. This  increase  is  primarily  due  to  incremental  revenues  generated  from  new
transportation  contracts, including  those  related  to  Tuscarora’s  expansion  facilities  that  were  placed  into  service
December 1, 2002.

Costs  and  expenses  incurred  by  Tuscarora  increased  $2.2  million, or  79%, to  $5.0  million  for  the  year  ended 
December 31, 2003, compared to $2.8 million for the year ended December 31, 2002. This increase is primarily due to
the higher costs of operating two new compressor stations that were placed into service December 1, 2002.

Depreciation recorded by Tuscarora increased $1.5 million, or 31%, to $6.4 million for the year ended December 31, 2003,
compared to $4.9 million for the prior year. The increase reflects the larger asset base resulting from the expansion in
December 2002.

Financial charges recorded by Tuscarora increased $0.8 million, or 14%, to $6.5 million for the year ended December 31,
2003, compared to $5.7 million for 2002. This increase is due to the fact that no interest was capitalized in 2003. In 2002,
financial charges were lower due to the capitalization of interest expense related to funds used for the expansion.

Tuscarora recorded other income of zero and $0.7 million for the years ended December 31, 2003 and 2002, respectively.
This decrease is primarily due to the allowance recorded in 2002 related to equity funds used during construction of
the expansion. No such allowance was recorded in 2003.

Year Ended December 31, 2002 Compared to the Year Ended December 31, 2001
Tuscarora’s  net  income  increased  $2.1  million, or  25%, to  $10.4  million  for  the  year  ended  December  31, 2002,
compared to $8.3 million in 2001. This increase is primarily due to higher revenues, lower financial charges and higher
other income.

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Revenues generated by Tuscarora increased $1.8 million, or 8%, to $23.1 million for the year ended December 31, 2002,
compared to $21.3 million for 2001. This increase is primarily due to incremental revenues being generated from new
transportation  contracts, including  those  related  to  Tuscarora’s  expansion  facilities  which  were  placed  into  service
December 1, 2002.

Costs and expenses incurred by Tuscarora totaled $2.8 million and $2.6 million for the years ended December 31, 2002
and 2001, respectively.

Tuscarora  recorded  depreciation  of $4.9  million  and  $4.6  million  for  the  years  ended  December  31, 2002  and 
2001, respectively.

Tuscarora recorded financial charges of $5.7 million and $6.1 million for the years ended December 31, 2002 and 2001,
respectively. This  decrease  is  due  to  the  capitalization  of interest  expense  in  2002  related  to  funds  being  used  for 
the expansion.

Tuscarora recorded other income of $0.7 million and $0.3 million for the years ended December 31, 2002 and 2001,
respectively. This increase is primarily due to a higher allowance recorded in 2002 related to equity funds used during
construction of the expansion compared to the allowance recorded in 2001 related to the Hungry Valley lateral project.

LIQUIDITY AND CAPITAL RESOURCES OF TUSCARORA GAS TRANSMISSION COMPANY

Cash Distribution Policy of Tuscarora
In September 2000, Tuscarora adopted a cash distribution policy that became effective January 1, 2001. Under the terms
of the  cash  distribution  policy  and  at  the  discretion  of the  Tuscarora  Management  Committee, Tuscarora  makes
quarterly cash distributions to its general partners in accordance with their respective general partner interests. Cash
distributions  will  generally  be  computed  as  the  sum  of Tuscarora’s  net  income  before  taxes  and  depreciation  and
amortization, less amounts required for debt repayments, net of refinancings, maintenance capital expenditures, certain
non-cash items, and any cash reserves deemed necessary by the Tuscarora management committee. Cash distributions
will be computed at the end of each calendar quarter and the distribution will be made on or before the last day of the
month following the quarter end.

Summary of Certain Contractual Obligations

Payments Due by Period

(in millions)

Series A Senior Notes due 2010
Series B Senior Notes due 2010
Series C Senior Notes due 2012
Operating Leases
Commitments (1)

Total

Total

Less Than
1 Year

1-3 Years

4 -5 Years

After 
5 Years

$ 68.9
7.1
9.4
0.5
4.6

$ 90.5

$

$

3.6
0.3
0.7
0.1
1.2

5.9

$

$

7.3
0.8
1.5
0.2
2.3

$

6.7
1.0
1.7
0.2
1.1

$

12.1

$

10.7

$

51.3
5.0
5.5
–
–

61.8

(1)

Tuscarora  is  party  to  a  contract  with  a  third  party  for  maintenance  services  on  certain  components  of  its  pipeline-related  equipment.  The  contract  expires  in 
November 2007.

Debt and Credit Facilities
On March 15, 2002, Tuscarora issued Series C Senior Secured Notes in the amount of $10.0 million. These notes bear
interest  at  6.89%  and  are  due  in  2012. The  proceeds  from  these  notes  were  used  to  finance  the  construction  of
Tuscarora’s expansion facilities.

On January 4, 2002, Tuscarora entered into a credit agreement with Bank One for a $5.0 million, 364-day revolving
credit facility (Credit Facility), which bears interest at either LIBOR plus 1% or the prime rate. As at December 31, 2002,
the balance outstanding on this facility was $4.6 million. The Credit Facility expired on January 3, 2003, where upon
Tuscarora elected not to renew this facility and repaid the outstanding balance.

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T C   P I P E L I N E S ,   L P

In November 2001 and January 2002, Tuscarora entered into forward starting interest rate swaps with notional amounts
of $10.0 million and $8.0 million, respectively, related to the planned issuance of Series C Senior Secured Notes. The
swaps were settled on February 15, 2002 for net proceeds of approximately $0.2 million. The swaps were entered into
to hedge the fluctuations in treasury rates and spreads between the execution date of the swaps and the issuance date
of the Series C Senior Secured Notes.

Short-term liquidity needs will be met by operating cash flows. Long-term capital needs may be met through the ability
to issue long-term indebtedness.

Cash Flows from Operating Activities
Cash  flows  provided  by  operating  activities  increased  $1.4  million, or  9%, to  $16.4  million  for  the  year  ended 
December 31, 2003, compared to $15.0 million for 2002. This increase is the result of increased earnings during 2003,
as well as decreased working capital during the same period.

Cash  flows  provided  by  operating  activities  increased  $1.6  million, or  12%, to  $15.0  million  for  the  year  ended
December 31, 2002 compared to $13.4 million for 2001. This increase is the result of increased earnings during 2002,
partially offset by increased working capital during the same period.

Cash Flows from Investing Activities
Capital expenditures of $1.3 million for the year ended December 31, 2003 primarily related to the expansion that went
into service December 1, 2002. Capital expenditures of $31.9 million for the year ended December 31, 2002 included
$31.6 million for Tuscarora’s expansion.

Capital  expenditures  of $10.2  million  for  the  year  ended  December  31, 2001  included  $4.7  million  for  Tuscarora’s
expansion and $2.4 million related to the construction of the Hungry Valley lateral.

Total capital expenditures for 2004 are estimated to be $1.8 million of which approximately $1.6 million relates to a
planned  expansion  in  2005. The  remainder  relates  to  renewals  and  replacements  of existing  facilities. Tuscarora
anticipates  funding  its  2004  capital  expenditures  by  using  a  combination  of partner  contributions  and  operating 
cash flows.

Cash Flows from Financing Activities
Cash flows used in financing activities were $14.1 million for the year ended December 31, 2003, compared to cash flows
from financing activities of $16.5 million for the year ended December 31, 2002.

In 2003, Tuscarora repaid its Credit Facility which had $4.6 million outstanding at the beginning of the year. In 2002,
Tuscarora received net proceeds of $10.0 million from the issuance of its Series C Senior Secured Notes. The proceeds
from these notes were used to finance the construction of Tuscarora’s expansion facilities. Also, in 2002, Tuscarora drew
on its Credit Facility to partially fund its 2002 expansion. At December 31, 2002, $4.6 million was outstanding on the
Credit Facility.

For  the  years  ended  December  31, 2003  and  2002  Tuscarora  made  debt  repayments  of $4.7  million  and 
$4.1 million, respectively.

Tuscarora received contributions from its partners of $10.0 million and $15.5 million for the years ended December 31, 2003
and 2002, respectively. These contributions were used to fund the construction of Tuscarora’s expansion facilities.

Tuscarora  paid  cash  distributions  of $14.2  million  and  $9.3  million  to  its  general  partners  for  the  years  ended 
December 31, 2003 and 2002, respectively.

Cash  flows  used  in  financing  activities  were  $9.3  million  in  2001. In  2001, Tuscarora  made  debt  repayments  of
$4.2 million and paid cash distributions of $5.0 million. Tuscarora’s 2001 cash distributions represent three quarterly
payments due to the timing of the implementation of Tuscarora’s cash distribution policy.

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Sierra Pacific Resources
Sierra Pacific Resources, the parent company to Sierra Pacific Power Company (Sierra Pacific Power), Tuscarora’s largest
shipper with approximately 68% of contracted capacity through 2015, issued a press release on August 28, 2003 and
filed  a  Current  Report  on  Form  8-K  with  the  SEC  advising  that  the  federal  bankruptcy  court  judge  overseeing  the
bankruptcy case of Enron Power Marketing Inc. (Enron Power Marketing) rendered a decision in the lawsuit filed by
Enron  Power  Marketing  in  its  bankruptcy  case  asserting  claims  for  damages  related  to  the  termination  of its  power
supply agreements with Nevada Power Company (Nevada Power) and Sierra Pacific Power (together, the Utilities). The
bankruptcy court judge granted Enron Power Marketing’s motion for summary judgment with respect to Enron Power
Marketing’s claims against Nevada Power and Sierra Pacific Power for approximately $235 million and $102 million,
respectively, of liquidated damages, for power supply contracts terminated by Enron Power Marketing in May 2002. The
bankruptcy  court  judge  also  dismissed  the  Utilities’ counter  claims  against  Enron  Power  Marketing, dismissed  the
Utilities’ counter claims against Enron Corp., the parent of Enron Power Marketing, and denied the Utilities’ motion to
dismiss or stay the proceedings pending the final outcome of their FERC proceedings against Enron Power Marketing.
In  addition  to  the  claims  for  termination  payments  described  above, Nevada  Power  and  Sierra  Pacific  Power  had
previously  deposited  approximately  $17.7  million  and  $6.7  million, respectively, into  an  escrow  account  for  energy
delivered by Enron Power Marketing to each of Nevada Power and Sierra Pacific Power in April 2002, for which the
Utilities had not paid.

Sierra Pacific Power to date remains current on its shipping contracts with Tuscarora.

NEW ACCOUNTING PRONOUNCEMENTS

During 2003, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards (SFAS)
No. 149, “Amendment of Statement 133 on Derivative Instruments and Hedging Activities,” SFAS No. 150, “Accounting
for Certain Financial Instruments with Characteristics of both Liabilities and Equity” and Interpretation (FIN) No. 46,
“Consolidation of Variable Interest Entities,” and reissued SFAS No. 132, “Employers’ Disclosures about Pensions and
Other Postretirement Benefits.”

SFAS No. 149 amends and clarifies accounting for derivative instruments and hedging activities under SFAS No. 133.
As at December 31, 2003, TC PipeLines does not engage in any hedging activities and is not affected by the changes
resulting from this standard.

SFAS  No. 150  establishes  standards  for  how  an  issuer  classifies  and  measures  certain  financial  instruments  with
characteristics of both liabilities and equity. This standard is effective for financial instruments entered into or modified
after May 31, 2003. As at December 31, 2003, TC PipeLines has not entered into any financial instruments that would
be affected by this standard and, therefore, is not affected by the changes resulting from this standard.

FIN No. 46 is an interpretation of Accounting Research Bulletin No. 51 and provides guidance on the identification of,
and financial reporting for, certain entities over which control is achieved through financial controls (variable interests)
rather  than  voting  rights. Such  entities  are  referred  to  as  variable  interest  entities. The  holder  of the  majority  of an
entity’s variable interests will be required to consolidate the variable interest entity. Neither Northern Border Pipeline
nor  Tuscarora  qualifies  as  a  variable  interest  entity  of the  Partnership  and, therefore, the  application  of this
Interpretation does not impact the financial statements of TC PipeLines.

SFAS No. 132 (Revised) revises employers’ disclosures about pension plans and other postretirement benefits plans. It
does not change the measurement or recognition of those plans in earlier Statements or the disclosure requirements
contained in the original SFAS No. 132. This revision requires additional disclosures about the assets, obligations, cash
flows, and net periodic benefit cost of defined benefit pension plans and other defined benefit postretirement plans. As
at  December  31, 2003, TC  PipeLines  does  not  have  a  pension  plan  or  other  postretirement  benefit  plans  and  is  not
affected by the changes resulting from this standard.

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40

T C   P I P E L I N E S ,   L P

RISK FACTORS AND CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

Cautionary Statement Regarding Forward-Looking Information
A number of statements made by TC PipeLines, LP, in this Form 10-K filing made with the SEC, are forward-looking
and relate to, among other things, anticipated financial performance, business prospects, strategies, market forces and
commitments. Much of this information appears in “Management’s Discussion and Analysis of Financial Condition
and Results of Operations” found herein. All forward-looking statements are based on the Partnership’s beliefs as well
as assumptions made by and information currently available to the Partnership. Words such as “anticipate,” “believe,”
“estimate,” “expect,” “plan,” “intend,” “forecast,” and similar expressions, identify forward-looking statements within the
meaning of the Private Securities Litigation Reform Act. By its nature, such forward-looking information is subject to
various risks and uncertainties, which could cause TC PipeLines’ actual results and experience to differ materially from
the anticipated results or other expectations expressed in this Form 10-K. Readers are cautioned not to place undue
reliance on this forward-looking information, which is as of the date of this Form 10-K.

Risk Factors

TC PipeLines is dependent upon Northern Border Pipeline and Tuscarora and may not be able to generate sufficient cash from
the  distributions  from  each  of  Northern  Border  Pipeline  and  Tuscarora  to  pay  the  minimum  quarterly  distribution  on  the
common units every quarter

While TC PipeLines has a significant ownership interest in each of Northern Border Pipeline and Tuscarora, it does not
control or operate either of these pipelines. The actual amount of cash TC PipeLines has available to pay the minimum
quarterly  distribution  will  depend  upon  numerous  factors  relating  to  each  of Northern  Border  Pipeline’s  and
Tuscarora’s business, most of which are beyond the control of TC PipeLines or the general partner, including:

•
•

•

the amount of cash distributed to TC PipeLines by each of Northern Border Pipeline and Tuscarora;
the  ability  of Northern  Border  Pipeline  to  recontract  capacity  for  maximum  transportation  rates  as  existing
contracts terminate;
the  tariff and  transportation  charges  collected  by  Northern  Border  Pipeline  and  Tuscarora  for  transportation
services on their pipeline systems;
increases in Northern Border Pipeline’s and Tuscarora’s operating and maintenance costs;

•
• payment defaults of shippers on Northern Border’s pipeline system and payment defaults of shippers on Tuscarora’s

•
•

pipeline system;
the amount of cash set aside and the adjustment in reserves made by the general partner at its discretion;
the amount of cash required to be contributed by TC PipeLines to either Northern Border Pipeline or Tuscarora in
the future;
required principal and interest payments on TC PipeLines’ debt;
the cost of acquisitions, including related debt service payments;

•
•
• TC PipeLines’ issuance of debt and equity securities;
• pipelines competing with Northern Border Pipeline and Tuscarora; and
•

expansion costs related to these systems.

Cash distributions are dependent primarily on TC PipeLines’ cash flow, financial reserves and working capital borrowings

Cash  distributions  are  not  dependent  solely  on  TC  PipeLines’ profitability, which  is  affected  by  non-cash  items.
Therefore, TC PipeLines may make cash distributions during periods when losses are reported and may not make cash
distributions during periods when profits are reported.

Northern Border Pipeline’s and Tuscarora’s indebtedness may limit their ability to borrow additional funds, make distributions
to TC PipeLines or capitalize on business opportunities

Northern  Border  Pipeline  is  prohibited  from  making  cash  distributions  during  an  event  of default  under  its
indebtedness. Provisions in Northern Border Pipeline’s indebtedness limit its ability to incur indebtedness and engage

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in specific transactions which could reduce its ability to capitalize on business opportunities that arise in the course of
its business. Tuscarora is prohibited from making cash distributions during an event of default under its indebtedness.
Under  Tuscarora’s  indebtedness, Tuscarora  has  granted  a  security  interest  in  certain  of its  transportation  contracts,
which  are  available  to  noteholders  during  an  event  of default. Any  future  refinancing  of Tuscarora’s  existing
indebtedness or any new indebtedness could have similar or greater restrictions.

If  Northern  Border  Pipeline,  as  a  subsidiary  of  Northern  Border  Partners,  L.P.  and  Enron  as  defined  under  the  Public  Utility
Holding Company Act (PUHCA), is unable to obtain an exemption from subsidiary status under PUHCA, it will become subject
to regulation by the SEC)

The  SEC  would  regulate  the  acquisition  of assets  and  interests  of Northern  Border  Pipeline, the  declaration  and
payment  of certain  cash  distributions; intra-system  borrowings  or  indemnifications; sale, services  or  construction
transactions with other holding system companies; the issuance of certain debt; equity securities and borrowings under
credit facilities.

If TC PipeLines is unable to make acquisitions on economically and operationally acceptable terms, either from third parties 
or  TransCanada,  TC  PipeLines’  future  financial  performance  will  be  limited  to  participation  in  Northern  Border  Pipeline 
and Tuscarora

The Partnership may not be able to:

identify attractive acquisition candidates in the future;
acquire assets on economically acceptable terms;

•
•
• make acquisitions that will not be dilutive to earnings and operating surplus; or
•

incur additional debt to finance an acquisition without affecting its ability to make distributions to unitholders.

Future acquisitions may involve the expenditure of significant funds. Depending upon the nature, size and timing of
future  acquisitions, TC  PipeLines  may  be  required  to  secure  additional  financing. Additional  financing  may  not  be
available to TC PipeLines on acceptable terms.

In addition, TC PipeLines may not be able to acquire any more of TransCanada’s United States pipeline assets. Substantially
all of TransCanada’s United States pipeline assets are subject to restrictions on sale, such as rights of first refusal. Under a
right of first refusal another party, usually a partner, has a right to acquire the particular asset at the price offered. Only if
the other party declines to purchase the asset at the price offered could TransCanada sell it to TC PipeLines.

Majority control of the Northern Border Pipeline management committee by affiliates of Enron may limit TC PipeLines’ ability
to influence Northern Border Pipeline

TC PipeLines owns a 30% general partner interest in Northern Border Pipeline. The remaining 70% general partner
interest in Northern Border Pipeline is owned by Northern Border Partners, a publicly traded limited partnership. The
general  partners  of Northern  Border  Partners  are  Northern  Plains  and  Pan  Border, both  subsidiaries  of Enron, and
Northwest  Border, a  subsidiary  of TransCanada. Except  as  to  any  matters  requiring  unanimity, such  as  significant
expansions or extensions to the pipeline system, the acceptance of rate cases and changes to, or suspensions of, the cash
distribution policy, management committee members designated by subsidiaries of Enron have the voting power to
approve a particular matter requiring a majority vote despite the fact that TC PipeLines’ representative may vote against
the  project  or  matter. Conversely, with  respect  to  any  matter  requiring  a  majority  vote, management  committee
members designated by subsidiaries of Enron may disapprove of a particular matter despite the fact that TC PipeLines’
representative may vote in favor of that matter.

Northern Border Pipeline and Tuscarora are extensively regulated by the FERC

If the FERC requires that Northern Border Pipeline’s or Tuscarora’s tariff be changed, Northern Border Pipeline’s or
Tuscarora’s respective cash flows may be adversely affected.

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42

T C   P I P E L I N E S ,   L P

Northern  Border  Pipeline  and  Tuscarora  are  subject  to  extensive  regulation  by  the  FERC. The  FERC’s  regulatory
authority extends to matters including:

transportation of natural gas;
rates and charges;
construction of new facilities;
acquisitions, extension or abandonment of services and facilities;
accounts and records;

•
•
•
•
•
• depreciation and amortization policies; and
• operating terms and conditions of service.

Given  the  extent  of regulation  by  the  FERC  and  potential  changes  to  regulations, the  Partnership  cannot  give 
assurance regarding:

•
•

the likely federal regulations under which Northern Border Pipeline or Tuscarora will operate in the future;
the effect that regulation will have on Northern Border Pipeline’s, Tuscarora’s or the Partnership’s financial positions,
results of operations and cash flows; or

• whether the Partnership’s cash flow will be adequate to make distributions to unitholders.

Northern Border Pipeline’s ability to file for an increase of its rates before November 2005 to recover increases in most
types of costs has been substantially eliminated by the settlement of its last rate case.

If  Northern  Border  Pipeline  or  Tuscarora  do  not  maintain  or  increase  their  respective  rate  bases  by  successfully  completing
FERC-approved projects, the amount of revenue attributable to the return on the rate base they collect from their shippers
will decrease over time

The Northern Border and Tuscarora pipeline systems are generally allowed to collect from their customers a return on
their assets or “rate base” as reflected in their financial records as well as recover that rate base through depreciation. The
amount  they  may  collect  from  customers  decreases  as  the  rate  base  declines  as  a  result  of, among  other  things,
depreciation and amortization. In order to avoid a reduction in the level of cash available for distributions to its partners
based  on  its  current  FERC-approved  tariff, each  of these  pipelines  must  maintain  or  increase  its  rate  base  through
projects that maintain or add to existing pipeline facilities. These projects will depend upon many factors including:

•
•
•
•
•

sufficient demand for natural gas;
an adequate supply of proved natural gas reserves;
available capacity on pipelines that connect with these pipelines;
the execution of natural gas transportation contracts;
the approval of any expansion or extension of the pipeline systems by their respective management committees, or
in some cases, a ruling from an arbitrator;
• obtaining financing for these projects; and
•

receipt and acceptance of necessary regulatory approvals.

Northern Border Pipeline’s and Tuscarora’s ability to complete these projects is also dependent on numerous business,
economic, regulatory, competitive and political uncertainties beyond its control, and neither Northern Border Pipeline
nor Tuscarora may be able to complete these projects.

If any shipper fails to perform its contractual obligations, Northern Border Pipeline’s or Tuscarora’s respective cash flows and
financial condition could be adversely impacted

If any  shipper  fails  to  perform  its  contractual  obligations, Northern  Border  Pipeline’s  or  Tuscarora’s  cash  flows  and
financial  condition  could  be  adversely  impacted. As  a  result, the  cash  available  for  distribution  by  TC  PipeLines  to
unitholders could be reduced.

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As  of December  31, 2003, the  three  largest  shippers  on  the  Northern  Border  pipeline  system  accounted  for
approximately  49%  of contracted  capacity, with  one  shipper, BP  Canada  Energy  Marketing  Corp. (Canada), being
obligated for approximately 21%.

Sierra  Pacific  Power, a  wholly  owned  subsidiary  of Sierra  Pacific  Resources, is  Tuscarora’s  largest  shipper  with  firm
contracts for 68.1% of its capacity. Sierra Pacific Resources and Sierra Pacific Power have below-investment grade credit
ratings. While  TC  PipeLines  has  no  current  indication  that  Sierra  Pacific  Power  is  unable  to  meet  its  ongoing
contractual obligations, TC PipeLines is unable to predict the future financial condition of Sierra Pacific Power and its
long-term ability to meet its obligations under existing agreements.

Northern Border Pipeline’s ability to operate its pipeline on certain tribal lands will depend on its success in renegotiating its
right-of-way rights on tribal lands within the Fort Peck Reservation

Northern  Border  Pipeline’s  ability  to  operate  the  pipeline  on  certain  tribal  lands  will  depend  on  its  success  in
renegotiating  before  2011  its  right-of-way  rights  on  tribal  lands  within  the  Fort  Peck  Reservation. See  Item  2.
“Properties – Properties of Northern Border Pipeline Company.” Northern Border Pipeline and the Tribes, through a
mediation process, have held settlement discussions and have reached a settlement in principle on the pipeline right-
of-way lease and taxation issues, subject to final documentation and necessary governmental approvals. If Northern
Border Pipeline is unable to recover the additional costs of the proposed settlement in its future rates, it could have a
material adverse impact on Northern Border Pipeline’s results of operations.

The long-term financial conditions of Northern Border Pipeline and Tuscarora and as a result, of TC PipeLines, are dependent
on the continued availability of western Canadian natural gas for import into the United States

The development of additional natural gas reserves requires significant capital expenditures by others for exploration
and development drilling and the installation of production, gathering, storage, transportation and other facilities that
permit natural gas to be produced and delivered to pipelines that interconnect with Northern Border’s and Tuscarora’s
pipeline systems. Low prices for natural gas, regulatory limitations, or the lack of available capital for these projects
could  adversely  affect  the  development  of additional  reserves  and  production, gathering, storage  and  pipeline
transmission and import and export of natural gas supplies. Contracts covering approximately 30% of Northern Border
Pipeline’s capacity expire prior to November 2004. Northern Border Pipeline may not be able to replace these contracts
with new long-term contracts providing similarly attractive economic terms. Substantially all of Tuscarora’s capacity is
contractually committed through 2015. If the availability of western Canadian natural gas were to decline over these
periods, existing  shippers  on  the  Northern  Border  and  Tuscarora  pipeline  systems  may  be  unlikely  to  extend  their
contracts and Northern Border Pipeline and Tuscarora may be unable to find replacement shippers for lost capacity.
Furthermore, additional natural gas reserves may not be developed in commercial quantities and in sufficient amounts
to fill the capacities of each of the Northern Border or Tuscarora pipeline systems.

Northern Border Pipeline’s and Tuscarora’s business depends in part on the level of demand for western Canadian natural gas
in the markets the pipeline systems serve

Northern  Border  Pipeline’s  and  Tuscarora’s  business  depends  in  part  on  the  level  of demand  for  western  Canadian
natural gas in the markets the pipeline systems serve. The volumes of natural gas delivered to these markets from other
sources affect the demand for both western Canadian natural gas and the use of these pipeline systems. Demand for
western Canadian natural gas also influences the ability and willingness of shippers to use the Northern Border and
Tuscarora pipeline systems to meet the demand that these pipeline systems serve.

The Partnership cannot predict whether or how these or other factors will affect the demand for use of the Northern
Border or Tuscarora pipeline systems. If either of these pipeline systems are used less over the long term, the Partnership
may have lower revenues and less cash to distribute to its unitholders.

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T C   P I P E L I N E S ,   L P

Because of the highly competitive nature of the natural gas transmission business, Northern Border Pipeline and Tuscarora
may not be able to maintain existing customers or acquire new customers when the current shipper contracts expire

Other pipeline systems that transport natural gas serve the same markets served by the Northern Border and Tuscarora
pipeline systems. As a result, Northern Border Pipeline and Tuscarora face competition from other pipeline systems.

Northern Border Pipeline may not be able to renew or replace expiring contracts. The renewal or replacement of the
existing  contracts  with  customers  of Northern  Border  Pipeline  depends  on  a  number  of factors  beyond  Northern
Border Pipeline’s control, including:

•
•
•
•

the supply of natural gas in Canada and the United States;
competition from alternative sources of supply in the United States;
competition from other pipelines; and
the price of, and demand for, natural gas in markets served by the Northern Border pipeline system.

Contracts  covering  approximately  30%  of Northern  Border  Pipeline’s  capacity  expire  prior  to  November  2004.
Northern Border Pipeline may not be able to replace these contracts with new long-term contracts providing similarly
attractive terms.

Tuscarora  competes  in  the  northern  Nevada  natural  gas  transmission  market  with  Paiute  Pipeline  Co., owned  by
Southwest  Gas  Co. of Las  Vegas, Nevada. The  Paiute  pipeline  interconnects  with  Northwest  Pipeline  Corp. at  the
Nevada-Idaho border and transports gas from British Columbia and the U.S. Rocky Mountain Basin to the northern
Nevada market.

TransCanada’s main pipeline systems transport natural gas from the same natural gas reserves in western Canada that
are  used  by  Northern  Border  Pipeline’s  and  Tuscarora’s  customers. TransCanada  is  not  prohibited  from  actively
competing with Northern Border Pipeline for the transport of western Canadian natural gas.

Northern  Border  Pipeline’s  and  Tuscarora’s  operations  are  regulated  by  federal  and  state  agencies  responsible  for
environmental protection and operational safety

TC  PipeLines  believes  that  these  operations  comply  in  all  material  respects  with  applicable  environmental  and  safety
regulations. However, risks of substantial costs and liabilities are inherent in pipeline operations and each of Northern
Border Pipeline and Tuscarora may incur substantial costs and liabilities in the future as a result of stricter environmental
and  safety  laws, regulations  and  enforcement  policies  and  claims  for  personal  or  property  damages  resulting  from
Northern Border Pipeline’s or Tuscarora’s operations. If either Northern Border Pipeline or Tuscarora, as applicable, was
not able to recover these costs, cash distributions to TC PipeLines’ unitholders could be adversely affected.

Northern Border Pipeline’s and Tuscarora’s operations are subject to operational hazards and unforeseen interruptions,
including natural disasters, adverse weather, accidents or other events beyond its control. A casualty occurrence might
result in a loss of equipment or life, as well as injury and extensive property or environmental damage.

TC PipeLines does not have stand-alone management resources to operate without services provided by TransCanada

TransCanada provides all of TC PipeLines’ management resources. Further, TC PipeLines would not be able to evaluate
potential acquisitions and successfully complete acquisitions without TransCanada’s resources.

The  IRS  could  treat  TC  PipeLines  as  a  corporation,  which  would  substantially  reduce  the  cash  available  for  distribution 
to unitholders

Current law may change so as to cause TC PipeLines to be taxable as a corporation for federal income tax purposes or
otherwise to be subject to entity-level taxation. The partnership agreement provides that, if a law is enacted or existing
law is modified or interpreted in a manner that subjects TC PipeLines to taxation as a corporation or otherwise subjects
TC PipeLines to entity-level taxation for federal, state or local income tax purposes, then specified provisions of the

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partnership agreement relating to distributions will be subject to change, including a decrease in distributions to reflect
the impact of that law on TC PipeLines.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

TC  PipeLines  may  be  exposed  to  market  risk  through  changes  in  interest  rates. The  Partnership  does  not  have  any
foreign  exchange  risks. TC  PipeLines’ interest  rate  exposure  results  from  its  Revolving  Credit  Facility  and  its
TransCanada  Credit  Facility, which  are  subject  to  variability  in  LIBOR  interest  rates. At  December  31, 2003,
TC PipeLines had $5.5 million outstanding on its Revolving Credit Facility and zero outstanding on its TransCanada
Credit Facility. If LIBOR interest rates change by one percent compared to the rates in effect as of December 31, 2003,
annual interest expense would change by less than $0.1 million. This amount has been determined by considering the
impact of the hypothetical interest rates on variable rate borrowings outstanding as of December 31, 2003.

The  Partnership’s  market  risk  sensitivity  is  also  influenced  by  and  reflects  the  same  factors  that  influence  Northern
Border Pipeline.

Northern  Border  Pipeline’s  interest  rate  exposure  results  from  variable  rate  borrowings  from  commercial  banks. To
mitigate potential fluctuations in interest rates, Northern Border Pipeline attempts to maintain a significant portion of
its debt portfolio in fixed rate debt. Northern Border Pipeline also uses interest rate swaps as a means to manage interest
expense by converting a portion of fixed rate debt into variable rate debt to take advantage of declining interest rates.
At December 31, 2003, Northern Border Pipeline had $356.0 million of variable rate debt outstanding, $225.0 million
of which was previously fixed rate debt but had been converted to variable rate debt through the use of interest rate
swaps. For additional information on Northern Border Pipeline’s debt obligations and derivative instruments, see Note 5
and Note 6 to Northern Border Pipeline’s Financial Statements, included elsewhere in this report. As of December 31, 2003,
approximately 56% of Northern Border Pipeline’s debt portfolio was in fixed rate debt.

If average interest rates change by one percent compared to rates in effect as of December 31, 2003, annual interest
expense would change by approximately $3.6 million. This amount has been determined by considering the impact of
the hypothetical interest rates on variable rate borrowings outstanding as of December 31, 2003.

Item 8.

Financial Statements and Supplementary Data

The information required hereunder is included in this report as set forth in the “Index to Financial Statements” on
page F-1.

Item 9. Changes in and Disagreements with Accountants on Accounting 
and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures
Based on their evaluation as of the end of the year covered by this annual report, the President and Chief Executive
Officer  and  Chief Financial  Officer  of the  general  partner  of the  Partnership  have  concluded  that  the  Partnership’s
disclosure controls and procedures referred to in paragraph 4(b) of their certifications included as exhibits to this report
were effective.

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T C   P I P E L I N E S ,   L P

PA RT   I I I

Item 10. Directors and Executive Officers of the General Partner

TC PipeLines is a limited partnership and has no officers, directors or employees. Set forth below is certain information
concerning the directors and officers of the general partner who manages the operations of TC PipeLines. Each director
holds office for a one-year term or until his or her successor is earlier appointed. All officers of the general partner serve
at  the  discretion  of the  Board  of Directors  of the  general  partner  which  is  an  indirect  wholly  owned  subsidiary 
of TransCanada.

Name

Age 

Position with General Partner

Ronald J. Turner
Russell K. Girling
Robert A. Helman
Jack F. Jenkins-Stark
David L. Marshall
Albrecht W.A. Bellstedt
Kristine L. Delkus
Steven D. Becker
Donald R. Marchand
Ronald L. Cook
Max Feldman
Wendy L. Hanrahan
Amy W. Leong
Maryse C. St.-Laurent

50
41
69
52
64
54
46
53
41
46
55
45
36
44

President, Chief Executive Officer and Director
Chief Financial Officer and Director
Independent Director
Independent Director
Independent Director
Director
Director
Vice-President, Business Development
Vice-President and Treasurer
Vice-President, Taxation
Vice-President
Vice-President
Controller
Secretary

Mr. Turner has been a director of the general partner since April 1999 and was appointed President and Chief Executive
Officer  in  December  2000. Mr. Turner’s  principal  occupation  is  Executive  Vice-President, Gas  Transmission  of
TransCanada, a  position  he  has  held  since  March  2003. From  December  2000  until  March  2003, Mr. Turner  was
Executive  Vice-President, Operations  and  Engineering  of TransCanada. From  June  2000  until  December  2000,
Mr. Turner was Executive Vice-President, International of TransCanada. From April 2000 until June 2000, Mr. Turner
was Senior Vice-President, International of TransCanada. From August 1999 until April 2000, Mr. Turner was President,
International of TransCanada. From July 1998 until April 2000, Mr. Turner was Senior Vice-President of TransCanada.

Mr. Girling was appointed Chief Financial  Officer  and a director of the general partner in April 1999. Mr. Girling’s
principal occupation is Executive Vice-President, Corporate Development and Chief Financial Officer of TransCanada,
a position he has held since March 2003. From June 2000 until March 2003, Mr. Girling was Executive Vice-President
and Chief Financial Officer of TransCanada. From July 1999 until June 2000, Mr. Girling was Senior Vice-President and
Chief Financial Officer of TransCanada. From January 1999 until July 1999, Mr. Girling was Vice-President, Finance of
TransCanada. From  July  1998  until  January  1999, Mr. Girling  was  Executive  Vice-President, Power  (TransCanada
Energy Ltd.).

Mr. Helman was appointed a director of the general partner in July 1999. Mr. Helman has been a partner of Mayer,
Brown, Rowe & Maw LLP (law firm) since 1967. Mayer, Brown, Rowe & Maw LLP provides legal services on U.S. related
matters to TransCanada, the parent of the general partner. In the first half of 2002, Mayer, Brown, Rowe & Maw LLP
provided limited legal services to the general partner on behalf of the Partnership solely relating to matters arising from
Enron’s  voluntary  petition  for  bankruptcy  protection. Mr. Helman  did  not  participate, nor  was  he  consulted  in  the
provision  of such  services. Further, Mayer, Brown, Rowe  &  Maw  LLP  no  longer  provides  such  services  to  the
Partnership. Mr. Helman serves as a director of Northern Trust Corporation and The Northern Trust Company.

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Mr. Jenkins-Stark  was  appointed  a  director  of the  general  partner  in  July  1999. Mr. Jenkins-Stark  is  currently Vice-
President, Business Operations and Technology at Itron Inc. (a manufacturer of automated meter reading technology
and  a  developer  of energy  management  software), a  position  he  has  held  since  January  2004. In  March  2003,
Mr. Jenkins-Stark was named a Managing Director at Itron following the purchase of Silicon Energy Corp. (internet-
based energy and data management software) by Itron. Prior to the acquisition, Mr. Jenkins-Stark was Chief Financial
Officer of Silicon Energy, a position he held from April 2000 to March 2003. From December 1998 until April 2000,
Mr. Jenkins-Stark was Senior Vice-President and Chief Financial Officer of GATX Capital (commercial finance). From
September 1998 until December 1998, Mr. Jenkins-Stark was Senior Vice-President, Finance of GATX Capital.

Mr. Marshall was appointed a director of the general partner in July 1999. Mr. Marshall was Vice-Chairman of The
Brinks Company (diversified energy, security and transportation services firm) from 1994 until 1998.

Mr. Bellstedt was appointed a director of the general partner in December 2001. Mr. Bellstedt’s principal occupation
is Executive Vice-President, Law and General Counsel of TransCanada, a position he has held since June 2000. From
April 2000 until June 2000, Mr. Bellstedt was Senior Vice-President, Law and General Counsel of TransCanada. From
August 1999 until April 2000, Mr. Bellstedt was Senior Vice-President, Law and Administration of TransCanada. From
February  1999  until  August  1999, Mr. Bellstedt  was  Senior  Vice-President, Law  and  Chief Compliance  Officer  of
TransCanada. Prior to February 1999, Mr. Bellstedt was a senior partner of Fraser Milner, a Canadian law firm.

Ms. Delkus  was  appointed  a  director  of the  general  partner  in  November  2003. Ms. Delkus’ principal  occupation  is 
Vice-President, Law, Power and Regulatory of TransCanada, a position she has held since July 2001. From July 2000 to
July  2001, Ms. Delkus  was  Vice-President, Law, Trading  &  Business  Development. From  March  1997  to  July  2000,
Ms. Delkus was Senior Legal Counsel, U.S. Regulatory Law.

Mr. Becker was appointed Vice-President, Business Development of the general partner in September 2003. Mr. Becker’s
principal occupation is Vice-President, Gas Development of TransCanada, a position he has held since April 2003. From
1999 until April 2003, Mr. Becker was Vice-President, Market Development, and Vice-President, Gas Strategy.

Mr. Marchand was appointed Vice-President and Treasurer of the general partner in October 1999. Mr. Marchand’s
principal occupation is Vice-President, Finance and Treasurer of TransCanada, a position he has held since September 1999.
From January 1998 until September 1999, Mr. Marchand was Director, Finance of TransCanada.

Mr. Cook was appointed Vice-President, Taxation of the general partner in April 2002. Mr. Cook’s principal occupation
is Vice-President, Taxation  of TransCanada, a  position  he  has  held  since April  2002. From  June  1997  to April  2002,
Mr. Cook served as Director, Taxation of TransCanada.

Mr. Feldman  was  appointed  Vice-President  of the  general  partner  in  September  2003. Mr. Feldman’s  principal
occupation is Vice-President, Gas Transmission West of TransCanada, a position he has held since April 2003. From
June 2000 until April 2003, Mr. Feldman was Senior Vice-President, Customer, Sales and Service of TransCanada. From
September 1999 until June 2000, Mr. Feldman was Senior Vice-President, Customer Sales and Service, Transmission
Division  of TransCanada. Prior  to  September  1999, Mr. Feldman  held  several  Vice-President  positions  in  the
operations, customer service and marketing areas of TransCanada.

Ms. Hanrahan  was  appointed  Vice-President  of the  general  partner  in  September  2003. Ms. Hanrahan’s  principal
occupation is Director, Planning, Evaluation and Rates of TransCanada, a position she has held since May 2003. From
September 2001 until April 2003, Ms. Hanrahan was Director, Corporate Strategy of TransCanada. From July 1998 until
August 2001, Ms. Hanrahan was Director, Financial Services of TransCanada.

Ms. Leong  was  appointed  Controller  of the  general  partner  in  September  2003. Ms. Leong’s  principal  occupation  is
Manager, Gas Transmission Accounting of TransCanada, a position she has held since April 2003. From January 2000
until  April  2003, Ms. Leong  was  Manager, Regulatory  Accounting  and  Capital  Accounting  of TransCanada. From

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T C   P I P E L I N E S ,   L P

February 1999 until January 2000, Ms. Leong was Manager, Corporate Planning of TransCanada. From May 1997 until
February 1999, Ms. Leong was Coordinator, Budgeting and Forecasting of TransCanada.

Ms. St.-Laurent  was  appointed  Secretary  of the  general  partner  in  September  2003. Prior  to  her  appointment,
Ms. St.-Laurent  acted  as  recording  Secretary  of the  general  partner  since  January  2001. Ms. St.-Laurent’s  principal
occupation is Senior Legal Counsel, Corporate Secretarial Department of TransCanada, a position she has held since
April 2001. From June 1997 until April 2001, Ms. St.-Laurent was Legal Counsel, Corporate Secretarial Department 
of TransCanada.

Audit Committee Financial Expert
The board of directors has determined that David L. Marshall and Jack Jenkins-Stark are “audit committee financial
experts” and “independent” as defined under applicable SEC and Nasdaq Stock Market Corporate Governance rules.
The board’s affirmative determination for both David L. Marshall and Jack Jenkins-Stark was based on their education
and extensive experience as chief financial officers for corporations that presented a breadth and level of complexity of
accounting issues that are generally comparable to those of TC PipeLines.

Code of Ethics
TC PipeLines believes that director, management and employee honesty and integrity are important factors in ensuring
good  corporate  governance. The  employees  of the  general  partner, as  employees  of TransCanada, are  subject  to
TransCanada’s code of business ethics. In addition, the general partner has adopted a code of business ethics for its
President and Chief Executive Officer, Chief Financial Officer and Controller and one which applies to its independent
directors, being  the  code  of business  ethics  for  directors. All  codes  are  published  on  its  website  at
www.tcpipelineslp.com. If any substantive amendments are made to the code for senior officers or if any waivers are
granted, the amendment or waiver will be published on TC PipeLines’ website or filed in a report on Form 8-K.

Corporate Governance
The  audit  committee  has  adopted  a  charter  which  specifically  provides  that  it  is  responsible  for  the  appointment,
compensation, retention  and  oversight  of the  work  of the  independent  public  accountants  engaged  in  preparing  or
issuing  TC  PipeLines’ audit  report, that  the  committee  has  the  authority  to  engage  independent  counsel  and  other
advisors  as  it  determines  necessary  to  carry  out  its  duties  and  for  the  committee  to  be  responsible  for  establishing
procedures for the receipt, retention and treatment of complaints regarding accounting, internal accounting controls
or  auditing  matters, including  procedures  for  the  confidential, anonymous  submission  by  employees  of the  general
partner concerns regarding questionable accounting or auditing matters. The committee has adopted TransCanada’s
Ethics help line in fulfillment of its responsibility to establish a confidential and anonymous whistle blowing process.
The  toll  free  Ethics  Help-Line  number  and  the  audit  committee’s  charter  are  published  on  TC  PipeLines  website  at
www.tcpipelineslp.com.

Mr. Robert Helman has served on the Audit Committee of the Board since July, 1999. Mr. Helman has advised the Board
that he will be retiring from his directorship pending appointment of his successor.

Section 16(a) Beneficial Ownership Reporting Compliance
Section 16(a) of the Exchange Act requires the Partnership’s directors and executive officers, and persons who own more
than 10% of the common units, to file initial reports of ownership and reports of changes in ownership (Forms 3, 4,
and 5) of the common units with the SEC and the Nasdaq Stock Market. Executive officers, directors and greater than
10% unitholders are required by SEC regulation to furnish the Partnership with copies of all such forms that they file.

Based solely upon a review of reports on Forms 3 and 4 and amendments thereto furnished to the Partnership during
its most recent fiscal year and reports on Form 5 and amendments thereto furnished to the Partnership with respect to
its most recent fiscal year, and written representations from officers and directors of the general partner that no Form 5

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was  required, the  Partnership  believes  that  all  filing  requirements  applicable  to  its  officers, directors  and  beneficial
owners under Section 16(a) were complied with during the year ended December 31, 2003.

Item 11. Executive Compensation

The  following  table  summarizes  certain  information  regarding  the  annual  salary  of Ronald  J. Turner, President  and
Chief Executive Officer of the general partner of the Partnership, for the years ended December 31, 2003, 2002 and 2001
paid by TransCanada, parent company of the general partner. Mr. Turner is an employee of TransCanada. TC PipeLines
reimburses TransCanada for the services contributed to its operations by Mr. Turner.

Name and Principal Position

Ronald J. Turner, President and Chief Executive Officer

Annual TransCanada Base Salary (1)

Year

2003
2002
2001

Canadian
Dollars

447,501
436,254
412,503

United States
Dollar Equivalent (2)

346,000
276,000
259,000

(1)

(2)

Annualized base salary paid by TransCanada. Based on services provided, approximately 10% of this base salary is allocated to the Partnership.

The compensation of the Chief Executive Officer of the general partner is paid by TransCanada in Canadian dollars. The United States dollar equivalents have been
calculated using the applicable December 31, 2003, 2002 and 2001 noon buying rates of 0.7738, 0.6331 and 0.6279, respectively, as reported by the Bank of Canada.

Each director who is not an employee of TransCanada, the general partner or its affiliates (independent director) is
entitled to a directors’ retainer fee of $15,000 per annum and an additional fee of $2,000 per annum for each committee
of the board of which he is Chair. These fees are paid by the Partnership on a semi-annual basis. Each independent
director  is  also  paid  a  fee  of $1,500  for  attendance  at  each  meeting  of the  Board  of Directors  and  a  fee  of $750  for
attendance  at  each  meeting  of a  committee  of the  Board. The  Chair  of the Audit  Committee  receives  an  additional 
$375 per meeting for his additional duties as committee chair. The independent directors are reimbursed for out-of-
pocket  expenses  incurred  in  the  course  of attending  such  meetings. Under  a  directors’ compensation  plan  adopted
effective  July  19, 1999, each  independent  director  receives  50%  of his  annual  board  retainer  that  is  payable  on  the
applicable  date  in  the  form  of common  units  of the  Partnership. The  common  units  are  purchased  by  the  general
partner on the open market and the number of common units purchased under the directors’ compensation plan is
based on the trading price of common units on the day preceding the applicable payment date.

As the Partnership does not have any employees, the Audit and Compensation Committee of the Board of Directors
and subsequently the Board of Directors of the general partner of TC PipeLines, have not been called upon to make any
determination with respect to the amount of compensation to be paid to the Partnership’s President and CEO. The
board does, however, approve the allocation of the salary of the President and CEO to the Partnership on an annual
basis. The executive officers’ salaries are determined on a competitive and market basis by TransCanada.

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T C   P I P E L I N E S ,   L P

Item 12. Security Ownership of Certain Beneficial Owners and Management 
and Related Matters

The following table sets forth the beneficial ownership of the voting securities of the Partnership as of February 23, 2004
by the general partner’s directors, officers and certain beneficial owners. Executive Officers of the general partner own
shares of TransCanada, which in the aggregate amount to less than 1% of TransCanada’s issued and outstanding shares.
Other than as set forth below, no person is known by the general partner to own beneficially more than 5% of the voting
securities of the Partnership.

Name and Business Address

TC PipeLines GP, Inc. (2) (3)
450 1st Street SW
Calgary, Alberta T2P 5H1

TransCan Northern Ltd. (2)
450 1st Street SW
Calgary, Alberta T2P 5H1

Goldman Sachs Group Inc. (4)
85 Broad Street
New York, New York 10004

Robert A. Helman (5)
190 S. LaSalle Street
Chicago, Illinois 60603

Jack F. Jenkins-Stark (6)
1010 Atlantic Avenue
Alameda, California 94501 

David L. Marshall (7)
450 1st Street SW
Calgary, Alberta T2P 5H1

Ronald J. Turner
450 1st Street SW
Calgary, Alberta T2P 5H1

Directors and Executive Officers as a Group (8) (9) 
(14 persons)

Amount and Nature of Beneficial Ownership

Common Units

Subordinated Units

Number of
Units

Percent of 
Class

Number of
Units

Percent of 
Class

Percentage of 
Interest for

all Units (1)

1,872,870

11.3

936,436

100

16.1

2,800,000

16.9

1,446,848

8.7

10,979

2,979

2,579

–

16,537

*

*

*

–

*

–

–

–

–

–

–

–

–

–

–

–

–

–

–

16.0

8.3

*

*

*

–

*

(1)

(2)

(3)

(4)

(5)

(6)

(7)

A total of 17,500,000 common and subordinated units are issued and outstanding.

TC PipeLines GP, Inc. and TransCan Northern Ltd. are wholly owned subsidiaries of TransCanada.

TC PipeLines GP, Inc. owns an aggregate 2% general partner interest of TC PipeLines.

As reported on a schedule 13G/A filed on February 12, 2004, the Goldman Sachs Group, Inc. (GS Group) and Goldman, Sachs & Co. (Goldman Sachs) each disclaim
beneficial ownership of the securities beneficially owned by (i) any client accounts with respect to which Goldman Sachs or employees of Goldman Sachs have voting
or investment discretion, or both and (ii) certain investment entities, of which a subsidiary of GS Group or Goldman Sachs is the general partner, managing general
partner or other manager, to the extent interests in such entities are held by persons other than GS Group, Goldman Sachs or their affiliates.

10,979 units are held in trust accounts for Mr. Helman’s benefit.

2,979 units are held by the Jenkins-Stark Family Trust dated June 16, 1995.

2,579 units are held directly by Mr. Marshall.

(8) With the exception of the three named directors above, none of the other directors and executive officers hold any units of TC PipeLines.

(9)

Ronald J. Turner holds 322,850 options and 29,330 shares of TransCanada; Russell K. Girling holds 440,162 options and 9,725 shares of TransCanada; Albrecht W.A.
Bellstedt holds 187,500 options and 12,206 shares of TransCanada; Kristine L. Delkus holds 73,048 options and 2,252 shares of TransCanada; Steven D. Becker holds
142,907 options and 888 shares of TransCanada; Donald R. Marchand holds 111,000 options and 4,397 shares of TransCanada; Ronald L. Cook holds 66,290 options
and 8,486 shares of TransCanada; Max Feldman holds 157,481 options and 25,485 shares of TransCanada; Wendy L. Hanrahan holds 22,700 options and 977 shares
of  TransCanada;  Amy  W.  Leong  holds  5,600  options  and  2,236  shares  of  TransCanada;  and  Maryse  C.  St.-Laurent  holds  2,600  options  and  2,056  shares  of
TransCanada. The directors and executive officers as a group hold 1,532,138 options and 98,038 shares of TransCanada.

*

Less than 1%.

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Item 13. Certain Relationships and Related Transactions

An indirect subsidiary of TransCanada owns 2,800,000 common units and the general partner owns 1,872,870 common
units and 936,436 subordinated units, representing an aggregate 31.4% limited partner interest in the Partnership. In
addition, the  general  partner  owns  an  aggregate  2%  general  partner  interest  in  the  Partnership  through  which  it
manages  and  operates  the  Partnership. As  a  result, TransCanada’s  aggregate  ownership  interest  in  the  Partnership  is
33.4% by virtue of its indirect ownership of the general partner and a 31.4% aggregate limited partner interest.

The general partner is accountable to TC PipeLines and the unitholders as a fiduciary. Neither the Delaware Revised
Uniform Limited Partnership Act (Delaware Act) nor case law defines with particularity the fiduciary duties owed by
general  partners  to  limited  partners  of a  limited  partnership. The  Delaware Act  does  provide  that  Delaware  limited
partnerships may, in their partnership agreements, restrict or expand the fiduciary duties owed by a general partner to
limited partners and the partnership.

In order to induce the general partner to manage the business of TC PipeLines, the partnership agreement contains
various provisions restricting the fiduciary duties that might otherwise be owed by the general partner. The following
is a summary of the material restrictions of the fiduciary duties owed by the general partner to the limited partners:

• The partnership agreement permits the general partner to make a number of decisions in its “sole discretion.” This
entitles  the  general  partner  to  consider  only  the  interests  and  factors  that  it  desires  and  it  shall  have  no  duty  or
obligation to give any consideration to any interest of, or factors affecting, TC PipeLines, its affiliates or any limited
partner. Other provisions of the partnership agreement provide that the general partner’s actions must be made in
its reasonable discretion.

• The partnership agreement generally provides that affiliated transactions and resolutions of conflicts of interest not
involving a required vote of unitholders must be “fair and reasonable” to TC PipeLines. In determining whether a
transaction or resolution is “fair and reasonable” the general partner may consider interests of all parties involved,
including its own. Unless the general partner has acted in bad faith, the action taken by the general partner shall not
constitute a breach of its fiduciary duty.

• The partnership agreement specifically provides that it shall not be a breach of the general partner’s fiduciary duty
if its affiliates engage in business interests and activities in competition with, or in preference or to the exclusion of,
TC PipeLines. Further, the general partner and its affiliates have no obligation to present business opportunities to
TC PipeLines.

• The  partnership  agreement  provides  that  the  general  partner  and  its  officers  and  directors  will  not  be  liable  for
monetary  damages  to  TC  PipeLines, the  limited  partners  or  assignees  for  errors  of judgment  or  for  any  acts  or
omissions if the general partner and those other persons acted in good faith.

TC  PipeLines  is  required  to  indemnify  the  general  partner  and  its  officers, directors, employees, affiliates, partners,
members, agents  and  trustees  (collectively  referred  to  hereafter  as  the  General  Partner  and  others), to  the  fullest
extent permitted  by  law, against  liabilities, costs  and  expenses  incurred  by  the  General  Partner  and  others. This
indemnification  is  required  if the  General  Partner  and  others  acted  in  good  faith  and  in  a  manner  they  reasonably
believed  to  be  in, or  (in  the  case  of a  person  other  than  the  general  partner)  not  opposed  to, the  best  interests  of
TC PipeLines. Indemnification is required for criminal proceedings if the General Partner and others had no reasonable
cause to believe their conduct was unlawful.

The Partnership does not have any employees. The management and operating functions are provided by the general
partner. The  general  partner  does  not  receive  a  management  fee  or  other  compensation  in  connection  with  its
management  of the  Partnership. The  Partnership  reimburses  the  general  partner  for  all  costs  of services  provided,
including the costs of employee, officer and director compensation and benefits, and all other expenses necessary or
appropriate to the conduct of the business of, and allocable to the Partnership. The partnership agreement provides that
the  general  partner  will, in  its  sole  discretion, determine  the  expenses  that  are  allocable  to  the  Partnership  in  any
reasonable  manner  determined  by  it. Total  costs  reimbursed  to  the  general  partner  by  the  Partnership  were

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 52

52

T C   P I P E L I N E S ,   L P

approximately $0.7 million for the year ended December 31, 2003. Such costs include personnel costs (such as salaries
and employee benefits), overhead costs (such as office space and equipment) and out-of-pocket expenses related to the
provision of services to the Partnership.

On May 28, 2003, the Partnership renewed its $40.0 million unsecured two-year revolving credit facility (TransCanada
Credit  Facility)  with  TransCanada  PipeLine  USA  Ltd., an  affiliate  of the  general  partner. The  TransCanada  Credit
Facility bears interest at LIBOR plus 1.25%. The purpose of the TransCanada Credit Facility is to provide borrowings
to fund capital expenditures, to fund capital contributions to Northern Border Pipeline, Tuscarora and any other entity
in  which  the  Partnership  directly  or  indirectly  acquires  an  interest, to  fund  working  capital  and  for  other  general
business  purposes, including  temporary  funding  of cash  distributions  to  unitholders  and  the  general  partner, if
necessary. At December 31, 2003, the Partnership had no amount outstanding under the TransCanada Credit Facility.
As at March 12, 2004, $9.0 million is outstanding under the TransCanada Credit Facility.

Mr. Helman, a director of the general partner of the Partnership, is a partner of the law firm Mayer, Brown, Rowe &
Maw LLP, which provides legal services on U.S. related matters to TransCanada, the parent of the general partner. Also,
in the first half of 2002, Mayer, Brown, Rowe & Maw LLP provided limited legal services to the general partner on behalf
of the  Partnership  solely  relating  to  matters  arising  from  Enron’s  voluntary  petition  for  bankruptcy  protection. The
payments made by the Partnership and those made by its parent during the last calendar year did not exceed 5% of
Mayer, Brown, Rowe & Maw LLP’s consolidated gross revenues for that year. Mr. Helman did not participate, nor was
he consulted in the provision of services to the Partnership, and Mayer, Brown, Rowe & Maw LLP have not since the
first half of 2002 provided any further services to the Partnership.

Item 14.

Principal Accountants Fees and Services

The following table sets forth, for the periods indicated, the fees billed by the principal accountants.

Audit Fees
Audit-Related Fees (2)
Tax Fees (2)
All Other Fees (2)

2003

2002

65,500 (1)

–
–
–

79,660
–
–
–

(1)

On April 23, 2002, the Partnership filed a shelf registration statement with the SEC. These charges include fees paid to KPMG, the Partnership’s external auditors, for
services performed related to this filing in the amount of $3,000 (2002 – $18,860).

(2)

The Partnership has not engaged its external auditors for any tax services, audit-related services, or other services in 2003 or 2002.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 53

PA RT   I V

2 0 0 3   A N N U A L   R E P O RT

53

Item 15.

Exhibits, Financial Statement Schedules and Reports on Form 8-K

a) (1) and (2) Financial Statements and Financial Statement Schedules

The financial statements filed as part of this report are listed in the “Index to Financial Statements” on page F-1.
(3)

Exhibit No.
*3.1

*3.2

*3.3

*3.4

*3.5

*3.6

*4.1

*4.2

*4.3

*4.4

*10.1

*10.2

*10.2.1

*10.2.2

Description
Amended and Restated Agreement of Limited Partnership of TC PipeLines, LP dated May 28, 1999
(Exhibit 3.1 to TC PipeLines, LP’s Form 10-K, March 28, 2000).
Certificate of Limited Partnership of TC PipeLines, LP (Exhibit 3.2 to TC PipeLines, LP’s Form S-1
Registration Statement, Registration No. 333-69947, December 30, 1998).
Certificate of Limited Partnership of TC PipeLines Intermediate Limited Partnership (Exhibit 3.3 to
TC PipeLines, LP’s Form S-1, December 30, 1998).
Certificate of Limited Partnership of TC Tuscarora Intermediate Limited Partnership (Exhibit 99.1 to
TC PipeLines, LP’s Form 8-K, September 1, 2000).
Agreement of Limited Partnership of TC Tuscarora Intermediate Limited Partnership dated July 19, 2000
(Exhibit 99.2 to TC PipeLines, LP’s Form 8-K, September 1, 2000).
Amended  and  Restated  Agreement  of Limited  Partnership  of TC  PipeLines  Intermediate  Limited
Partnership dated May 28, 1999 (Exhibit 10.1 to TC PipeLines, LP’s Form 10-K, March 28, 2000).
Indenture, dated as of August 17, 1999 between Northern Border Pipeline Company and Bank One
Trust  Company, NA, successor  to  The  First  National  Bank  of Chicago, as  trustee  (Exhibit  4.1  to
Northern Border Pipeline Company, Form S-4 Registration Statement, Registration No. 333-88577,
October 7, 1999).
Indenture, Assignment  and  Security  Agreement  dated  December  21, 1995  between  Tuscarora  Gas
Transmission Company and Wilmington Trust Company, as trustee (Exhibit 99.1 to TC PipeLines,
LP’s Form 10-Q, September 30, 2000).
Indenture  dated  September  17, 2001, between  Northern  Border  Pipeline  Company  and  Bank  One
Trust  Company, N.A. (Exhibit  4.2  to  Northern  Border  Pipeline  Company, Form  S-4  Registration
Statement, Registration No. 333-73282, November 13, 2001).
Indenture dated April 29, 2002, between Northern Border Pipeline Company and Bank One Trust
Company, NA, as  trustee  (Exhibit  4.1  to  Northern  Border  Pipeline  Company’s  Form  10-Q,
March 31, 2002).
Contribution, Conveyance and Assumption Agreement among TC PipeLines, LP and certain other
parties dated May 28, 1999 (Exhibit 10.2 to TC PipeLines, LP’s Form 10-K, March 28, 2000).
Northern  Border  Pipeline  Company  General  Partnership  Agreement  between  Northern  Border
Intermediate Limited Partnership, TransCanada Border PipeLine Ltd., and TransCan Northern Ltd.,
effective  March  9, 1978  as  amended  (Exhibit  3.2  to  Northern  Border  Partners, L.P. Form  S-1
Registration Statement No. 33-66158).
Seventh Supplement Amending Northern Border Pipeline Company General Partnership Agreement
dated as of September 23, 1993 (Exhibit 10.3.1 to TC PipeLines, LP’s Form S-1, December 30, 1998).
Eighth Supplement Amending Northern Border Pipeline Company General Partnership Agreement
dated  May  21, 1999  by  and  among  TransCan  Border  PipeLine  Ltd., TransCanada  Northern  Ltd.,
Northern  Border  Intermediate  Limited  Partnership  and  TC  PipeLines  Intermediate  Limited
Partnership (Exhibit 10.3.2 to TC PipeLines, LP’s Form 10-K, March 28, 2000).

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 54

54

T C   P I P E L I N E S ,   L P

*10.2.3

*10.3

*10.4

*10.5

*10.6

*10.7

*10.8

*10.8.1

*10.8.2

10.8.3

*10.9

*10.9.1

*10.10

*10.11

21.1
23.1
23.2
31.1

31.2

Ninth Supplement Amending Northern Border Pipeline Company General Partnership Agreement
dated  July  16, 2001  by  and  among  Northern  Border  Intermediate  Limited  Partnership  and 
TC  PipeLines  Intermediate  Limited  Partnership  (Exhibit  10.37  to  Northern  Border  Pipeline
Company, Form S-4 Registration Statement, Registration No. 333-73282, November 13, 2001).
Renewal  of U.S. $40,000,000  Two  Year  Revolving  Credit  Facility  between  TC  PipeLines, LP, as
borrower, and  TransCanada  PipeLine  USA  Ltd., as  lender  dated  May  28, 2003  (Exhibit  10.1  to 
TC PipeLines, LP’s Form 10-Q, August 14, 2003).
Operating Agreement between Northern Border Pipeline Company and Northern Plains Natural Gas
Company, dated  February  28, 1980  (Exhibit  10.3  to  Northern  Border  Partners, L.P.’s  Form  S-1
Registration Statement No. 33-66158).
Agreement  among  Northern  Plains  Natural  Gas  Company, Pan  Border  Gas  Company, Northwest
Border  Pipeline  Company, TransCanada  Border  PipeLine  Ltd., TransCan  Northern  Ltd., Northern
Border  Intermediate  Limited  Partnership, Northern  Border  Partners, L.P., and  the  Management
Committee  of Northern  Border  Pipeline, dated  as  of March  17, 1999  (Exhibit  10.21  to  Northern
Border Partners, L.P.’s 1998 Form 10-K/A, March 24, 1999).
Directors’ Compensation Plan of TC PipeLines, GP, Inc. dated effective July 19, 1999 (Exhibit 10.36
to TC PipeLines, LP’s Form 10-K, March 28, 2000).
Purchase  and  Sale  Agreement  dated  July  19, 2000  among  TCPL  Tuscarora  Ltd., TC  Tuscarora
Intermediate  Limited  Partnership, TC  PipeLines  GP, Inc., TransCanada  PipeLines  Limited  and
TransCanada PipeLine USA Ltd. (Exhibit 99.3 to TC PipeLines, LP’s Form 8-K, September 1, 2000).
Credit Agreement dated as of August 22, 2000 among TC PipeLines, LP, the Lenders Party thereto and
Bank One N.A., as agent (Exhibit 99.2 to TC PipeLines, LP’s Form 10-Q, September 30, 2000).
First  Amendment  and  Waiver  to  Credit  Agreement  among  TC  PipeLines, LP, the  Lenders  Party
thereto and Bank One N.A., as agent, April 15, 2002 (Exhibit 10.1 to TC PipeLines, LP’s Form 10-Q,
September 30, 2002).
Second Amendment  to  Credit Agreement  among  TC  PipeLines, LP, the  Lenders  Party  thereto  and
Bank  One  N.A., as  agent, September  30, 2002  (Exhibit  10.2  to  TC  PipeLines, LP’s  Form  10-Q,
September 30, 2002).
Third Amendment to Credit Agreement among TC PipeLines, LP, the Lenders Party thereto and Bank
One N.A., as agent, March 8, 2004.
Employment  Agreement  between  Northern  Plains  Natural  Gas  Company  and  William  R. Cordes
effective June 1, 2002 (Exhibit 10.27 to Northern Border Partners, L.P.’s Form 10-Q, June 30, 2001).
Amendment  to  Employment  Agreement  between  Northern  Plains  Natural  Gas  Company  and
William  R. Cordes, effective  September  25, 2001  (Exhibit  10.36  to  Northern  Border  Pipeline
Company’s Form S-4, November 13, 2001).
Employment Agreement between Northern Plains Natural Gas Company and Jerry L. Peters effective
April 1, 2002 (Exhibit 10.1 to Northern Border Pipeline Company’s Form 10-Q, March 31, 2002).
Credit Agreement, dated as of May 16, 2002, among Northern Border Pipeline Company, Bank One,
NA, Citibank, N.A., Bank of Montreal, SunTrust Bank, Wachovia Bank, National Association, Banc
One Capital Markets, Inc, and Lenders (as defined therein)(Exhibit 10.1 to Northern Border Partners,
L.P.’s Current Report on Form 8-K dated June 26, 2002).
Subsidiaries of the Registrant.
Consent of KPMG LLP with respect to the financial statements of TC PipeLines, LP.
Consent of KPMG LLP with respect to the financial statements of Northern Border Pipeline Company.
Certification of President and Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley
Act of 2002.
Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 55

2 0 0 3   A N N U A L   R E P O RT

55

32.1

32.2
*99.1

99.2

Certification of President and Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002.
Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Consolidated  balance  sheet  at  December  31, 2002  of TC  PipeLines  GP, Inc., general  partner  of
TC PipeLines, LP (Exhibit 99.1 to TC PipeLines, LP’s Form 10-Q, August 14, 2003).
Consolidated  balance  sheet  at  December  31, 2003  of TC  PipeLines  GP, Inc., general  partner  of
TC PipeLines, LP.

* Indicates exhibits incorporated by reference.

b) Reports on Form 8-K

1. Report on Form 8-K dated October 24, 2003 and filed on October 24, 2003 reporting that TC PipeLines, LP issued

a press release announcing third quarter results for the period ended September 30, 2003.

2. Report on Form 8-K dated December 19, 2003 and filed on December 19, 2003 reporting that Northern Border
Pipeline  advised  that  its  Management  Committee  had  unanimously  agreed  to  (i)  issue  equity  cash  calls  to  its
partners in the total amount of $130 million in early 2004 and $90 million in 2007; (ii) fund future growth capital
expenditures with 50% equity capital contributions from its partners; and (iii) change the cash distribution policy
of Northern Border Pipeline to be effective January 1, 2004.

3. Report on Form 8-K dated December 31, 2003 and filed on December 31, 2003 reporting that Northern Border
Pipeline filed a Form 8-K stating that the SEC issued an order on December 29, 2003 denying two applications
filed  by  Enron  seeking  exemption  under  Section  3(a)(1), 3(a)(3)  and  3(a)(5)  of PUHCA. Northern  Border
Pipeline also stated that Enron filed for an exemption under Section 3(a)(4) of PUHCA, based on the temporary
nature  of the  applicant’s  current  or  proposed  interest  in  Portland  General  Electric  Company, as  described  in
Enron’s and certain of its subsidiaries’ chapter 11 plan.

4. Report on Form 8-K dated January 16, 2004 and filed on January 20, 2004 reporting that TC PipeLines, LP issued

a press release announcing its fourth quarter distribution.

5. Report on Form 8-K dated January 29, 2004 and filed on January 30, 2004 reporting that TC PipeLines, LP issued

a press release announcing fourth quarter and annual results for the period ended December 31, 2003.

6. Report  on  Form  8-K  dated  February  9, 2004  and  filed  on  February  9, 2004  reporting  that  Northern  Border
Pipeline filed a Form 8-K stating that, as previously reported on December 31, 2003, Enron and other related
entities  had  filed  with  the  SEC  an  application  for  exemption  under  Section  3(a)(4)  of PUHCA. By  SEC  order
entered  January  30, 2004, the  hearing  date  on  Enron’s  pending  application  for  exemption  under  PUHCA  was
postponed until February 9, 2004 and by SEC order entered February 6, 2004, the hearing date has now been
postponed until further notice on the condition that a status report on Enron’s offer of settlement be provided
no later than March 8, 2004.

7. Report on Form 8-K dated March 2, 2004 and filed on March 2, 2004, furnishing the presentation of Mr. Ron
Turner, President and Chief Executive Officer of TC PipeLines, LP at the Master Limited Partnership Investor
Conference 2004, held in New York City on March 2, 2004.

8. Report on Form 8-K dated March 10, 2004 and filed March 11, 2004, reporting that, on March 9, 2004, Enron
registered  as  a  holding  company  under  the  Public  Utility  Holding  Company Act  of 1935. This  Form  8-K  also
reported  that  on  March  10, 2004, Northern  Border  Pipeline  filed  a  Form  8-K  announcing  that  the  SEC  has
granted Enron’s request on behalf of Northern Border Partners, which includes its subsidiary Northern Border
Pipeline, to allow Northern Border Partners to declare and pay distributions. The approval is part of the SEC
order issued March 9, 2004, after Enron registered as a holding company under PUHCA. The authorizations are
effective until the earlier of the deregistration of Enron under PUHCA or July 31, 2005.

c) None.
d) None.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page 56

56

T C   P I P E L I N E S ,   L P

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused
this report to be signed on its behalf by the undersigned, thereunto duly authorized on this 12th day of March 2004.

TC PIPELINES, LP
(A Delaware Limited Partnership)
by its general partner, TC PipeLines GP, Inc.

By:

Ronald J. Turner
President and Chief Executive Officer
TC PipeLines GP, Inc.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following
persons in the capacities and on the dates indicated.

Signature

Title

Date

Ronald J. Turner
and Director (Principal Executive Officer)

President and Chief Executive Officer

March 12, 2004

Russell K. Girling

Chief Financial Officer
and Director (Principal Financial Officer)

March 12, 2004

Amy W. Leong

Controller (Principal Accounting Officer)

March 12, 2004

Albrecht W. A. Bellstedt

Director

March 12, 2004

Kristine L. Delkus

Robert A. Helman

Director

Director

March 12, 2004

March 12, 2004

Jack F. Jenkins-Stark

Director

March 12, 2004

David L. Marshall

Director

March 12, 2004

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-1

TC PIPELINES, LP

INDEX TO FINANCIAL STATEMENTS

Page No.

2 0 0 3   A N N U A L   R E P O RT

F-1

FINANCIAL STATEMENTS OF TC PIPELINES, LP

Independent Auditors’ Report
Balance Sheet – December 31, 2003 and 2002
Statement of Income – Years Ended December 31, 2003, 2002 and 2001
Statement of Comprehensive Income – Years Ended December 31, 2003, 2002 and 2001
Statement of Cash Flows – Years Ended December 31, 2003, 2002 and 2001
Statement of Changes in Partners’ Equity – Years Ended December 31, 2003, 2002 and 2001
Notes to Financial Statements

FINANCIAL STATEMENTS OF NORTHERN BORDER PIPELINE COMPANY

Independent Auditors’ Report
Balance Sheet – December 31, 2003 and 2002
Statement of Income – Years Ended December 31, 2003, 2002 and 2001
Statement of Comprehensive Income – Years Ended December 31, 2003, 2002 and 2001
Statement of Cash Flows – Years Ended December 31, 2003, 2002 and 2001
Statement of Changes in Partners’ Equity – Years Ended December 31, 2003, 2002 and 2001
Notes to Financial Statements

FINANCIAL STATEMENTS SCHEDULE OF NORTHERN BORDER PIPELINE COMPANY

Independent Auditors’ Report on Schedule 
Schedule II – Valuation and Qualifying Accounts

F-2
F-3
F-4
F-4
F-5
F-6
F-7

F-13
F-14
F-15
F-15
F-16
F-17
F-18

S-1
S-2

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-2

F-2

T C   P I P E L I N E S ,   L P

I N D E P E N D E N T   A U D I T O R S ’   R E P O RT

To the Board of Directors of TC PipeLines GP, Inc., General Partner of TC PipeLines, LP:

We have audited the accompanying balance sheets of TC PipeLines, LP (a Delaware limited partnership) as of December 31,
2003 and 2002 and the related statements of income, comprehensive income, cash flows and changes in partners’ equity
for each of the years in the three year period ended December 31, 2003. These financial statements are the responsibility
of the General Partner. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted in the United States of America.
Those standards require that we plan and perform an audit to obtain reasonable assurance about whether the financial
statements  are  free  of material  misstatement. An  audit  includes  examining, on  a  test  basis, evidence  supporting  the
amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe
that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of
TC PipeLines, LP as of December 31, 2003 and 2002 and the results of its operations and its cash flows for each of the
years in the three year period ended December 31, 2003 in conformity with accounting principles generally accepted in
the United States of America.

Calgary, Canada

March 4, 2004

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-3

B A L A N C E   S H E E T

December 31

(millions of dollars)

Assets
Current Assets
Cash

Investment in Northern Border Pipeline
Investment in Tuscarora

Liabilities and Partners’ Equity
Current Liabilities

Accounts payable
Current portion of long-term debt

Long-Term Debt

Partners’ Equity

Common units
Subordinated units
General partner
Other comprehensive income

The accompanying notes are an integral part of these financial statements.

2 0 0 3   A N N U A L   R E P O RT

F-3

2003

2002

7.5
240.7
39.9

288.1

0.6
5.5

6.1

–

260.4
13.9
6.1
1.6

282.0

288.1

6.4
242.9
36.7

286.0

0.6
–

0.6

11.5

238.9
27.0
5.9
2.1

273.9

286.0

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-4

F-4

T C   P I P E L I N E S ,   L P

S TAT E M E N T   O F   I N C O M E

Year ended December 31

(millions of dollars, except per unit amounts)

Equity Income from Investment in Northern Border Pipeline
Equity Income from Investment in Tuscarora
General and Administrative Expenses
Financial Charges

Net Income

Net Income per Unit
Units Outstanding (millions)

The accompanying notes are an integral part of these financial statements.

S TAT E M E N T   O F   C O M P R E H E N S I V E   I N C O M E

Year ended December 31

(millions of dollars)

Net Income
Other Comprehensive Income

Transition adjustment from adoption of SFAS No. 133
Change associated with current period hedging transactions

Total Comprehensive Income

The accompanying notes are an integral part of these financial statements.

2003

2002

2001

44.5
5.3
(1.7)
(0.1)

48.0
2.63
17.5

$

42.8
4.7
(1.5)
(0.5)

45.5
2.50
17.5

$

42.1
3.6
(1.2)
(1.0)

43.5
2.40
17.5

$

2003

2002

2001

48.0

–
(0.9)

47.5

45.5

(0.5)
3.1

44.6

43.5

–
(0.1)

46.5

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-5

S TAT E M E N T   O F   C A S H   F L O W S

Year ended December 31

(millions of dollars)

Cash Generated from Operations
Net Income
Add/(deduct):
Equity income less than/(in excess of) distributions received
Increase/(decrease) in accounts payable
(Decrease)/increase in accrued interest
Other

Investing Activities
Investment in Tuscarora 
Return of Capital from Northern Border Pipeline Company
Deferred amounts

Financing Activities
Distributions paid
Reduction of long-term debt
Other

Increase/(Decrease) in Cash
Cash, Beginning of Year

Cash, End of Year

The accompanying notes are an integral part of these financial statements.

2 0 0 3   A N N U A L   R E P O RT

F-5

2003

2002

2001

48.0

1.6
0.2
–
–

49.6

(4.1)
1.0
–

(3.1)

(39.4)
(6.0)
–

(45.4)

1.1
6.4

7.5

45.5

–
(0.4)
(0.1)
0.2

52.1

(7.4)
–
–

(7.4)

(37.4)
(10.0)
(0.1)

(47.5)

(2.8)
9.2

6.4

43.5

6.3
(0.1)
(0.1)
–

42.9

–
–
(0.1)

(0.1)

(35.2)
–
–

(35.2)

7.6
1.6

9.2

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-6

F-6

T C   P I P E L I N E S ,   L P

S TAT E M E N T   O F   C H A N G E S   I N   PA RT N E R S ’   E Q U I T Y

Partners’ Equity at December 31, 2000
Net Income
Distributions Paid
Other Comprehensive Income
Partners’ Equity at December 31, 2001
Net Income
Distributions Paid
Subordinated Unit Conversion
Other Comprehensive Income
Partners’ Equity at December 31, 2002
Net Income
Distributions Paid
Subordinated Unit Conversion
Other Comprehensive Income

Partners’ Equity at December 31, 2003

Common Units

Subordinated Units

Other

General Comprehensive
Partner

Income

Partners’ Equity

(millions 
of units)

(millions 
of dollars)

(millions 
of units)

(millions 
of dollars)

(millions 
of dollars)

(millions
of dollars)

(millions 
of units)

(millions 
of dollars)

14.7
–
–
–
14.7
–
–
0.9
–
15.6
–
–
0.9
–
16.5

212.3
35.3
(28.6)
–
219.0
37.5
(30.7)
13.1
–
238.9
42.1
(34.1)
13.5
–
260.4

2.8
–
–
–
2.8
–
–
(0.9)
–
1.9
–
–
(0.9)
–
1.0

37.9
6.8
(5.5)
–
39.2
6.2
(5.3)
(13.1)
–
27.0
3.9
(3.5)
(13.5)
–
13.9

5.2
1.4
(1.1)
–
5.5
1.8
(1.4)
–
–
5.9
2.0
(1.8)
–
–
6.1

–
–
–
3.0
3.0
–
–
–
(0.9)
2.1
–
–
–
(0.5)
1.6

17.5
–
–
–
17.5
–
–
–
–
17.5
–
–
–
–
17.5

255.4
43.5
(35.2)
3.0
266.7
45.5
(37.4)
–
(0.9)
273.9
48.0
(39.4)
–
(0.5)
282.0

The accompanying notes are an integral part of these financial statements.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-7

2 0 0 3   A N N U A L   R E P O RT

F-7

N O T E S   T O   F I N A N C I A L   S TAT E M E N T S

NOTE 1 ORGANIZATION

TC  PipeLines, LP, and  its  subsidiary  limited  partnerships, TC  PipeLines  Intermediate  Limited  Partnership  and
TC Tuscarora Intermediate Limited Partnership, all Delaware limited partnerships, are collectively referred to herein as
TC  PipeLines  or  the  Partnership. TC  PipeLines  was  formed  by  TransCanada  PipeLines  Limited, a  subsidiary  of
TransCanada  Corporation  (collectively  referred  to  herein  as  TransCanada), to  acquire, own  and  participate  in  the
management of United States-based pipeline assets.

TC PipeLines owns a 30% general partner interest in Northern Border Pipeline Company (Northern Border Pipeline),
a Texas general partnership. Northern Border Pipeline owns a 1,249-mile United States interstate pipeline system that
transports natural gas from the Montana-Saskatchewan border to markets in the midwestern United States.

TC PipeLines also owns a 49% general partner interest in Tuscarora Gas Transmission Company (Tuscarora), a Nevada
general partnership. Tuscarora owns a 240-mile United States interstate pipeline system that transports natural gas from
Oregon, where it interconnects with facilities of Gas Transmission Northwest Corporation, to northern Nevada.

TC PipeLines is managed by its general partner, TC PipeLines GP, Inc. (General Partner), an indirect wholly-owned
subsidiary  of TransCanada. The  General  Partner  provides  certain  administrative  services  for  the  Partnership  and  is
reimbursed  for  its  costs  and  expenses. In  addition  to  its  2%  general  partner  interest, the  General  Partner  owns
1,872,870 common units and 936,436 subordinated units, representing an effective 15.7% limited partner interest in
the Partnership at December 31, 2003. TransCanada indirectly holds 2,800,000 common units representing an effective
15.7% limited partner interest in the Partnership at December 31, 2003.

NOTE 2 SIGNIFICANT ACCOUNTING POLICIES

(a) Basis of Presentation
The  accompanying  financial  statements  and  related  notes  present  the  financial  position  of the  Partnership  as  of
December 31, 2003 and 2002 and the results of its operations, cash flows and changes in partners’ equity for the years ended
December 31, 2003, 2002 and 2001. The Partnership uses the equity method of accounting for its investments in Northern
Border  Pipeline  and  Tuscarora, over  which  it  is  able  to  exercise  significant  influence. Other  comprehensive  income
recorded by TC PipeLines arises through its equity investments in Northern Border Pipeline and Tuscarora and relates to
cash flow hedges transacted by Northern Border Pipeline and Tuscarora. Amounts are stated in United States dollars.

(b) Use of Estimates
The  preparation  of financial  statements  in  conformity  with  generally  accepted  accounting  principles  requires
management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure
of contingent assets and liabilities as at the date of the financial statements and the reported amounts of revenues and
expenses  during  the  reporting  period. Although  management  believes  these  estimates  are  reasonable, actual  results
could differ from these estimates.

(c) Cash and Cash Equivalents
Cash equivalents consist of highly liquid investments with original maturities of three months or less. The carrying
amount of cash and cash equivalents approximates fair value because of the short maturity of these investments.

(d) Partners’ Equity
Costs incurred in connection with the issuance of units are deducted from the proceeds received. Costs incurred to
convert subordinated units to common units were deducted from Partners’ Equity.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-8

F-8

T C   P I P E L I N E S ,   L P

(e) Income Taxes
No provision for income taxes related to the operations of the Partnership is included in the accompanying financial
statements because, as a partnership, it is not subject to Federal or state income tax. The tax effect of the Partnership’s
activities accrues to its partners.

NOTE 3 INVESTMENT IN NORTHERN BORDER PIPELINE COMPANY

The  Partnership  owns  a  30%  general  partner  interest  in  Northern  Border  Pipeline. The  remaining  70%  partnership
interest  in  Northern  Border  Pipeline  is  held  by  Northern  Border  Partners, L.P. (NBP), a  publicly  traded  limited
partnership. The Northern Border pipeline system is operated by Northern Plains Natural Gas Company, a wholly-owned
subsidiary of Enron. Northern Border Pipeline is regulated by the Federal Energy Regulatory Commission (FERC).

TC  PipeLines’ equity  income  amounted  to  $44.5  million, $42.8  million  and  $42.1  million  for  the  years  ended
December 31, 2003, 2002 and 2001, respectively, representing 30% of the net income of Northern Border Pipeline for
the same periods. Undistributed earnings of Northern Border Pipeline amounted to zero, $1.3 million and $8.4 million
for the years ended December 31, 2003, 2002 and 2001, respectively.

The following sets out summarized financial information for Northern Border Pipeline as at December 31, 2003 and
2002 and for the years ended December 31, 2003, 2002 and 2001.

Northern Border Pipeline Balance Sheet

December 31

(millions of dollars)

Assets
Cash and cash equivalents
Other current assets
Plant, property and equipment, net
Other assets

Liabilities and Partners’ Equity
Current liabilities
Reserves and deferred credits
Long-term debt
Partners’ Equity

Partners’ capital
Accumulated other comprehensive income

Northern Border Pipeline Income Statement

Year ended December 31 

(millions of dollars)

Revenues
Costs and expenses
Depreciation
Financial charges
Other income/(expense)

Net income

2003

2002

28.7
40.8
1,591.8
31.3

1,692.6

62.3
6.4
821.5

797.2
5.2

25.4
40.8
1,636.0
37.8

1,740.0

130.9
15.4
783.9

803.0
6.8

1,692.6

1,740.0

2003

2002

2001

324.2
(73.4)
(57.8)
(44.9)
0.1

148.2

321.0
(69.9)
(58.7)
(51.5)
1.8

142.7

313.1
(59.3)
(57.5)
(55.4)
(0.4)

140.5

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-9

2 0 0 3   A N N U A L   R E P O RT

F-9

NOTE 4 INVESTMENT IN TUSCARORA GAS TRANSMISSION COMPANY

The Partnership owns a 49% general partner interest in Tuscarora. The remaining general partner interests in Tuscarora
are held 50% by Sierra Pacific Resources and 1% by TransCanada. Tuscarora is regulated by the FERC.

TC  PipeLines’ equity  income  from  Tuscarora  amounted  to  $5.3  million, $4.7  million  and  $3.6  million  for  the  years
ended December 31, 2003, 2002 and 2001, respectively, representing 49% of the net income of Tuscarora for the same
periods. Undistributed  earnings  of Tuscarora  amounted  to  zero, $0.8  million  and  $0.9  million  for  the  years  ended
December 31, 2003, 2002 and 2001, respectively.

The following sets out summarized financial information for Tuscarora as at December 31, 2003 and 2002 and for the years
ended December 31, 2003, 2002 and 2001. TC PipeLines has held its general partner interest since September 1, 2000.

Tuscarora Balance Sheet

December 31

(millions of dollars)

Assets
Cash and cash equivalents
Other current assets
Plant, property and equipment, net
Other assets

Liabilities and Partners’ Equity
Current liabilities
Long-term debt
Partners’ Equity

Partners’ capital
Accumulated other comprehensive income

Tuscarora Income Statement

Year ended December 31 

(millions of dollars)

Revenues
Costs and expenses
Depreciation
Financial charges
Other (expense)/income

Net income

2003

2002

1.8
4.3
141.9
1.6

149.6

6.7
80.8

62.0
0.1

0.6
4.3
148.4
1.2

154.5

14.6
85.3

54.2
0.4

149.6

154.5

2003

2002

2001

29.7
(5.0)
(6.4)
(6.5)
–

11.8

23.1
(2.8)
(4.9)
(5.7)
0.7

10.4

21.3
(2.6)
(4.6)
(6.1)
0.3

8.3

NOTE 5 CREDIT FACILITIES AND LONG-TERM DEBT

On  March  8, 2004, the  Partnership  renewed  its  credit  facility  (Revolving  Credit  Facility)  with  Bank  One, NA, as
administrative agent under which the Partnership may borrow up to an aggregate principal amount of $30.0 million.
Loans  under  the  Revolving  Credit  Facility  bear  interest  at  a  floating  rate. The  Revolving  Credit  Facility  matures  on
February 28, 2006. Amounts borrowed may be repaid in part or in full prior to that time without penalty. The Revolving
Credit Facility may be used to finance capital expenditures and for other general purposes. At December 31, 2003, the
Partnership had borrowings of $5.5 million outstanding under the Revolving Credit Facility (2002 – $11.5 million). The
fair value of the Revolving Credit Facility approximates its carrying value because the interest rate is a floating rate. The
interest rate on the Revolving Credit Facility averaged 2.58% for the year (2002 – 3.57%; 2001 – 5.19%) and was 2.42%
at the end of the year (2002 – 2.70%). Interest paid during the years ended December 31, 2003, 2002 and 2001 was 
$0.2 million, $0.4 million and $1.2 million, respectively.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-10

F-10

T C   P I P E L I N E S ,   L P

On May 28, 2003, the Partnership renewed its $40.0 million unsecured two-year revolving credit facility (TransCanada
Credit  Facility), with  TransCanada  PipeLine  USA  Ltd., an  affiliate  of the  General  Partner. The  TransCanada  Credit
Facility bears interest at London Interbank Offered Rate plus 1.25%. The purpose of the TransCanada Credit Facility is
to  provide  borrowings  to  fund  capital  expenditures, to  fund  capital  contributions  to  Northern  Border  Pipeline,
Tuscarora  and  any  other  entity  in  which  the  Partnership  directly  or  indirectly  acquires  an  interest, to  fund  working
capital and for other general business purposes, including temporary funding of cash distributions to unitholders and
the General Partner, if necessary. At December 31, 2003 and 2002, the Partnership had no amount outstanding under
the TransCanada Credit Facility.

NOTE 6 PARTNERS’ CAPITAL AND CASH DISTRIBUTIONS

Partners’ capital consists of 16,563,564 common units representing a 92.8% limited partner interest (which number
includes  1,872,870  common  units  are  held  by  the  General  Partner  and  2,800,000  common  units  are  owned  by  an
affiliate of the General Partner), 936,436 subordinated units owned by the General Partner representing a 5.2% limited
partner interest and a 2% general partner interest. In aggregate the General Partner’s and its affiliate’s interests represent
an effective 32% ownership of the Partnership’s equity.

The Partnership makes cash distributions to its partners with respect to each calendar quarter within 45 days after the
end  of each  quarter. Distributions  are  based  on  available  cash, which  includes  all  cash  and  cash  equivalents  of the
Partnership and working capital borrowings less reserves established by the General Partner. The Unitholders currently
receive a quarterly distribution of $0.55 per unit if and to the extent there is sufficient available cash. Distributions to
holders of the subordinated units are subject, while subordinated units remain outstanding (Subordination Period), to
the prior rights of holders of the common units to receive the quarterly distribution. Common units will not accrue
arrearages with respect to distributions for any quarter after the Subordination Period and subordinated units will not
accrue any arrearages with respect to distributions for any quarter.

The Subordination Period generally cannot end before June 30, 2004. Upon expiration of the Subordination Period, all
subordinated units will be converted on a one-for-one basis into common units and will participate pro rata with all
other common units in future distributions. On August 1, 2002, 936,435 subordinated units, representing one-third of
the outstanding subordinated units held by the General Partner, upon satisfaction of the financial tests set forth in the
partnership  agreement, automatically  converted  into  an  equal  number  of common  units  as  provided  for  in  the
partnership  agreement  of TC  PipeLines. On August  1, 2003, an  additional  936,435  subordinated  units, representing
one-half of the then remaining subordinated units held by the General Partner, upon satisfaction of the financial tests
set forth in the partnership agreement, automatically converted into an equal number of common units as provided for
in the partnership agreement of TC PipeLines. This reduces the number of outstanding subordinated units to 936,436,
which will, upon satisfaction of the financial tests, automatically convert into common units on the first date after the
record date for distributions for the quarter ending June 30, 2004.

As an incentive, the General Partner’s percentage interest in quarterly distributions is increased after certain specified
target levels are met. The incremental incentive distributions payable to the General Partner are 15%, 25%, and 50% of
all quarterly distributions of Available Cash that exceed target levels of $0.45, $0.5275 and $0.69, respectively, per unit.
For  the  years  ended  December  31, 2003, 2002  and  2001, the  Partnership  distributed  $2.175, $2.075  and  $1.975,
respectively, per  unit. The  distributions  for  the  year  ended  December  31, 2003, 2002  and  2001  included  incentive
distributions to the General Partner in the amount of $1.2 million, $0.8 million and $0.5 million, respectively.

Partnership  income  is  allocated  to  the  General  Partner  and  the  limited  partners  in  accordance  with  their  respective
partnership  percentages, after  giving  effect  to  any  priority  income  allocations  for  incentive  distributions  that  are
allocated 100% to the General Partner.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-11

NOTE 7 NET INCOME PER UNIT

Net income per unit is computed by dividing net income, after deduction of the General Partner’s allocation, by the
weighted average number of common and subordinated units outstanding. The General Partner’s allocation is equal to
an amount based upon the General Partner’s 2% interest, adjusted to reflect an amount equal to incentive distributions.
Net income per unit was determined as follows:

2 0 0 3   A N N U A L   R E P O RT

F-11

Year ended December 31

(millions of dollars, except per unit amounts)

Net Income

Net income allocated to General Partner

General Partner interest
Incentive distribution income allocation

Net income allocable to units
Weighted average units outstanding (millions)

Net income per unit

NOTE 8 RELATED PARTY TRANSACTIONS

2003

2002

2001

48.0

45.5

43.5

(1.0)
(0.9)

(2.0)

46.0
17.5

2.63

$

(1.0)
(0.8)

(1.8)

43.7
17.5

2.50

$

(0.9)
(0.6)

(1.4)

42.1
17.5

2.40

$

The Partnership does not have any employees. The management and operating functions are provided by the General
Partner. The  General  Partner  does  not  receive  a  management  fee  or  other  compensation  in  connection  with  its
management  of the  Partnership. The  Partnership  reimburses  the  General  Partner  for  all  costs  of services  provided,
including the costs of employee, officer and director compensation and benefits, and all other expenses necessary or
appropriate to the conduct of the business of, and allocable to the Partnership. The Partnership Agreement provides
that the General Partner will determine the expenses that are allocable to the Partnership in any reasonable manner
determined  by  the  General  Partner  in  its  sole  discretion. Total  costs  reimbursed  to  the  General  Partner  by  the
Partnership were approximately $0.7 million, $0.5 million and $0.5 million for the years ended December 31, 2003,
2002 and 2001, respectively. Such costs include (i) personnel costs (such as salaries and employee benefits), (ii) overhead
costs (such as office space and equipment) and (iii) out-of-pocket expenses related to the provision of such services.

NOTE 9 QUARTERLY FINANCIAL DATA (unaudited)

The following sets forth selected financial data for the four quarters of each of 2003 and 2002. Certain comparative
figures have been redefined to conform to the 2003 presentation.

Quarter ended 

(millions of dollars, except per unit amounts)

2003
Equity Income
Net Income
Net Income per Unit
Cash Distributions Paid

2002
Equity Income
Net Income
Net Income per Unit
Cash Distributions Paid

Mar 31

Jun 30

Sep 30

Dec 31

12.3
11.9
0.66
9.6

12.4
11.9
0.66
9.1

$

$

12.5
12.0
0.66
9.6

12.6
12.2
0.67
9.1

$

$

12.5
12.0
0.65
10.1

12.9
12.5
0.68
9.6

$

$

12.5
12.1
0.66
10.1

9.6
8.9
0.49
9.6

$

$

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-12

F-12

T C   P I P E L I N E S ,   L P

NOTE 10 ACCOUNTING PRONOUNCEMENTS

During 2003, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards (SFAS)
No. 149, “Amendment of Statement 133 on Derivative Instruments and Hedging Activities”, SFAS No. 150, “Accounting
for  Certain  Financial  Instruments  with  Characteristics  of both  Liabilities  and  Equity” and  Interpretation  (FIN) 
No. 46, “Consolidation of Variable Interest Entities,” and reissued SFAS No. 132, “Employers’ Disclosures about Pensions
and Other Postretirement Benefits.”

SFAS No. 149 amends and clarifies accounting for derivative instruments and hedging activities under SFAS No. 133.
As at December 31, 2003, TC PipeLines does not engage in any hedging activities and is not affected by the changes
resulting from this standard other than any impact arising from the Partnership’s equity investees.

SFAS  No. 150  establishes  standards  for  how  an  issuer  classifies  and  measures  certain  financial  instruments  with
characteristics of both liabilities and equity. This standard is effective for financial instruments entered into or modified
after May 31, 2003. As at December 31, 2003, TC PipeLines has not entered into any financial instruments that would
be affected by this standard and, therefore, is not affected by the changes resulting from this standard.

SFAS No. 132 (Revised) revises employers’ disclosures about pension plans and other postretirement benefits plans. It
does not change the measurement or recognition of those plans in earlier Statements or the disclosure requirements
contained in the original SFAS No. 132. This revision requires additional disclosures about the assets, obligations, cash
flows, and net periodic benefit cost of defined benefit pension plans and other defined benefit postretirement plans. As
at  December  31, 2003, TC  PipeLines  does  not  have  a  pension  plan  or  other  postretirement  benefit  plans  and  is  not
affected by the changes resulting from this standard.

FIN No. 46 is an interpretation of Accounting Research Bulletin No. 51 and provides guidance on the identification of,
and financial reporting for, certain entities over which control is achieved through financial controls (variable interests)
rather  than  voting  rights. Such  entities  are  referred  to  as  variable  interest  entities. The  holder  of the  majority  of an
entity’s  variable  interests  will  be  required  to  consolidate  the  variable  interest  entity. The  application  of this
Interpretation does not impact the financial statements of TC PipeLines.

NOTE 11 SUBSEQUENT EVENTS

On January 16, 2004, the Board of Directors of the General Partner declared a cash distribution of $0.55 per unit related
to the three months ended December 31, 2003. The $10.1 million distribution was paid on February 13, 2004 in the
following  manner: $9.1  million  to  the  holders  of common  units  as  of the  close  of business  on  January  30, 2003,
$0.5 million to the General Partner as holder of the subordinated units, $0.3 million to the General Partner as holder
of incentive distribution rights and $0.2 million to the General Partner in respect of its 2% general partner interest.

On  January  30, 2004, TC  PipeLines  paid  $19.5  million  related  to  its  share  of a  capital  contribution  to  Northern 
Border Pipeline.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-13

2 0 0 3   A N N U A L   R E P O RT

F-13

INDEPENDENT AUDITORS’ REPORT

Northern Border Pipeline Company:

We  have  audited  the  accompanying  balance  sheets  of  Northern  Border  Pipeline  Company  (a  Texas  partnership)  as  of
December 31, 2003 and 2002, and the related statements of income, comprehensive income, cash flows, and changes in
partners’ equity for each of the years in the three-year period ended December 31, 2003. These financial statements are the
responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based
on our audits.

We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those
standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements
are  free  of  material  misstatement.  An  audit  includes  examining,  on  a  test  basis,  evidence  supporting  the  amounts  and
disclosures  in  the  financial  statements.  An  audit  also  includes  assessing  the  accounting  principles  used  and  significant
estimates  made  by  management,  as  well  as  evaluating  the  overall  financial  statement  presentation.  We  believe  that  our
audits provide a reasonable basis for our opinion.

In  our  opinion,  the  financial  statements  referred  to  above  present  fairly,  in  all  material  respects,  the  financial  position  of
Northern Border Pipeline Company as of December 31, 2003 and 2002, and the results of its operations and its cash flows
for each of the years in the three-year period ended December 31, 2003, in conformity with accounting principles generally
accepted in the United States of America.

KPMG LLP

January 27, 2004
Omaha, Nebraska

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-14

F-14

T C   P I P E L I N E S ,   L P

NORTHERN BORDER PIPELINE COMPANY

BALANCE SHEET

(In Thousands)

ASSETS
CURRENT ASSETS

Cash and cash equivalents
Accounts receivable 
Related party receivables (net of allowance for doubtful accounts 
of $4,815 and $4,805 in 2003 and 2002, respectively)

Materials and supplies, at cost
Prepaid expenses and other
Total current assets

NATURAL GAS TRANSMISSION PLANT

In service
Construction work in progress

Total property, plant and equipment

Less: Accumulated provision for depreciation and amortization

Property, plant and equipment, net

OTHER ASSETS

Derivative financial instruments
Unamortized debt expense
Regulatory asset

Total other assets
Total assets

LIABILITIES AND PARTNERS’ EQUITY
CURRENT LIABILITIES

Current maturities of long-term debt
Accounts payable
Related party payables
Accrued taxes other than income
Accrued interest

Total current liabilities

LONG-TERM DEBT, NET OF CURRENT MATURITIES
RESERVES AND DEFERRED CREDITS
COMMITMENTS AND CONTINGENCIES (Note 7)
PARTNERS’ EQUITY

Partners’ capital
Accumulated other comprehensive income

Total partners’ equity
Total liabilities and partners’ equity

The accompanying notes are an integral part of these financial statements.

December 31

2003

2002

$

28,732
33,292

395
4,818
2,267
69,504

2,434,369
4,447
2,438,816
847,061
1,591,755

16,648
5,206
8,196
30,050
$ 1,691,309

$

–
7,055
15,582
28,947
10,717
62,301
821,498
5,072

$

25,358
32,774

1,552
4,721
1,844
66,249

2,427,459
4,027
2,431,486
795,525
1,635,961

21,204
6,142
10,481
37,827
$ 1,740,037

$

65,000
17,103
7,323
28,374
13,173
130,973
783,906
15,386

797,236
5,202
802,438
$ 1,691,309

803,014
6,758
809,772
$ 1,740,037

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-15

2 0 0 3   A N N U A L   R E P O RT

F-15

NORTHERN BORDER PIPELINE COMPANY

STATEMENT OF INCOME

(In Thousands)

OPERATING REVENUES

Operating revenues
Provision for rate refunds

Operating revenues, net

OPERATING EXPENSES

Operations and maintenance
Depreciation and amortization
Taxes other than income
Operating expenses

OPERATING INCOME

INTEREST EXPENSE

Interest expense
Interest expense capitalized

Interest expense, net

OTHER INCOME (EXPENSE)

Allowance for equity funds used during construction
Other income
Other expense

Other income (expense)

Year Ended December 31

2003 

2002 

2001

$

324,185
–
324,185

$

321,050
–
321,050

$

315,145
(2,057)
313,088

43,791
57,779
29,634
131,204

192,981

44,903

(46) 

44,857

53
1,373
(1,350)
76

41,442
58,714
28,436
128,592

192,458

51,550
(25)
51,525

26
2,476
(716)
1,786

33,695
57,516
25,636
116,847

196,241

56,262
(911)
55,351

925
1,417
(2,774)
(432)

NET INCOME TO PARTNERS

$

148,200

$

142,719

$

140,458

STATEMENT OF COMPREHENSIVE INCOME

(In Thousands)

Year Ended December 31  

2003 

2002 

2001

NET INCOME TO PARTNERS

$

148,200

$

142,719

$

140,458

OTHER COMPREHENSIVE INCOME:

Transition adjustment from adoption of SFAS No. 133
Change associated with current period 

–

–

10,347

hedging transactions

(1,556)

(2,415)

(1,174)

Total comprehensive income

$

146,644

$

140,304

$

149,631

The accompanying notes are an integral part of these financial statements.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-16

F-16

T C   P I P E L I N E S ,   L P

NORTHERN BORDER PIPELINE COMPANY

STATEMENT OF CASH FLOWS

(In Thousands)

CASH FLOWS FROM OPERATING ACTIVITIES:

Net income to partners
Adjustments to reconcile net income to partners 
to net cash provided by operating activities:
Depreciation and amortization
Provision for regulatory refunds
Regulatory refunds paid
Allowance for equity funds used during construction
Reserves and deferred credits
Changes in components of working capital
Other

Total adjustments

Net cash provided by operating activities

CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures for property, plant 

and equipment, net

CASH FLOWS FROM FINANCING ACTIVITIES:

Distributions to partners
Issuance of long-term debt, net
Retirement of long-term debt
Decrease in bank overdrafts
Proceeds (payments) upon termination of derivatives
Long-term debt financing costs

Net cash used in financing activities

NET CHANGE IN CASH AND CASH EQUIVALENTS
Cash and cash equivalents – beginning of year

Year Ended December 31  

2003 

2002  

2001 

$  148,200

$  142,719

$

140,458

58,144
261
(10,261)
(53)
1,001
(3,551)
(471)
45,070
193,270

59,079
10,000
–
(26)
(237)
13,268
(447)
81,637
224,356

57,881
2,036
(6,762)
(925)
736
4,583
(685)
56,864
197,322

(12,918)

(9,243)

(54,659)

(153,978)
142,000
(165,000)
–
–
–
(176,978)

3,374
25,358

(164,126)
431,894
(468,000)
–
2,351
(2,877)
(200,758)

14,355
11,003

Cash and cash equivalents – end of year

$ 

28,732

$ 

25,358

Changes in components of working capital:

Accounts receivable
Materials and supplies
Prepaid expenses and other
Accounts payable
Accrued taxes other than income
Accrued interest

$ 

(4,908)
(97)
(422)
3,758
573
(2,455)

$

5,369
152
(113)
10,006
1,207
(3,353)

Total

$ 

(3,551)

$ 

13,268

$ 

4,583

The accompanying notes are an integral part of these financial statements.

(143,032)
385,400
(374,000)
(22,437)
(4,070)
(2,567)
(160,706)

(18,043)
29,046

11,003

3,432
(163)
(1,484)
1,643
(970)
2,125

$

$

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-17

2 0 0 3   A N N U A L   R E P O RT

F-17

NORTHERN BORDER PIPELINE COMPANY

STATEMENT OF CHANGES IN PARTNERS’ EQUITY

(In Thousands)

TC PipeLines Northern Border
Intermediate
Intermediate
Limited
Limited
Partnership
Partnership

Accumulated
Other
Comprehensive
Income

Total
Partners’
Equity 

$

248,098
42,138

$

578,897
98,320

$

–
–

$

826,995
140,458

Partners’ Equity at December 31, 2000
Net income to partners
Transition adjustment from adoption 

of SFAS No. 133

–

–

10,347

10,347

Change associated with current period 

hedging transactions

Distributions paid

Partners’ Equity at December 31, 2001
Net income to partners
Change associated with current period 

hedging transactions

Distributions paid

Partners’ Equity at December 31, 2002
Net income to partners
Change associated with current period

hedging transactions

Distributions paid

–
(42,910)

247,326
42,816

–
(49,238)

240,904
44,460

–
(46,193)

–
(100,122)

577,095
99,903

–
(114,888)

562,110
103,740

–
(107,785)

(1,174)
–

9,173
–

(2,415)
–

6,758
–

(1,556)
–

(1,174)
(143,032)

833,594
142,719

(2,415)
(164,126)

809,772
148,200

(1,556)
(153,978)

Partners’ Equity at December 31, 2003

$

239,171

$

558,065

$ 

5,202

$

802,438

The accompanying notes are an integral part of these financial statements.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-18

F-18

T C   P I P E L I N E S ,   L P

NORTHERN BORDER PIPELINE COMPANY

NOTES TO FINANCIAL STATEMENTS

1.

ORGANIZATION AND MANAGEMENT

Northern  Border  Pipeline  Company  (Northern  Border  Pipeline)  is  a  Texas  general  partnership  formed  in  1978.  The
ownership percentages of the partners in Northern Border Pipeline (Partners) at December 31, 2003 and 2002 are 
as follows:

Partner
Northern Border Intermediate Limited Partnership
TC PipeLines Intermediate Limited Partnership

Ownership
Percentage
70
30

Northern  Border  Pipeline  owns  a  1,249-mile  natural  gas  transmission  pipeline  system  extending  from  the  United
States-Canadian border near Port of Morgan, Montana, to a terminus near North Hayden, Indiana.

Northern Border Pipeline is managed by a Management Committee that includes three representatives from Northern
Border Intermediate Limited Partnership (Partnership) and one representative from TC PipeLines Intermediate Limited
Partnership (TC PipeLines). The Partnership’s representatives selected by its general partners, Northern Plains Natural
Gas Company (Northern Plains), a wholly-owned subsidiary of Enron Corp. (Enron), Pan Border Gas Company (Pan
Border),  a  wholly-owned  subsidiary  of  Northern  Plains,  and  Northwest  Border  Pipeline  Company,  a  wholly-owned
subsidiary  of  TransCanada  PipeLines  Limited,  which  is  a  subsidiary  of  TransCanada  Corporation,  and  affiliate  of
TC PipeLines, have 35%, 22.75% and 12.25%, respectively, of the voting interest on the Management Committee.
The  representative  designated  by  TC  PipeLines  votes  the  remaining  30%  interest.  The  day-to-day  management  of
Northern  Border  Pipeline’s  affairs  is  the  responsibility  of  Northern  Plains,  as  defined  by  an  operating  agreement
between Northern Border Pipeline and Northern Plains. Northern Border Pipeline is charged for the salaries, benefits
and  expenses  of  Northern  Plains.  Northern  Plains  also  utilizes  Enron  affiliates  for  management  services  related  to
Northern Border Pipeline. For the years ended December 31, 2003, 2002, and 2001, Northern Border Pipeline’s charges
from Northern Plains and its affiliates totaled approximately $25.6 million, $22.8 million and $29.5 million, respectively.
See Note 10 for a discussion of Northern Border Pipeline’s relationships with Enron and developments involving Enron.

2.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(A)

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the  United
States of America requires management to make estimates and assumptions that affect the reported amounts of assets
and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported
amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

(B)

Government Regulation

Northern  Border  Pipeline  is  subject  to  regulation  by  the  Federal  Energy  Regulatory  Commission  (FERC).  Northern
Border  Pipeline’s  accounting  policies  conform  to  Statement  of  Financial  Accounting  Standards  (SFAS)  No.  71,
“Accounting for the Effects of Certain Types of Regulation.” 

Accordingly, certain assets that result from the regulated ratemaking process are recorded that would not be recorded
under accounting principles generally accepted in the United States of America for nonregulated entities. Northern Border
Pipeline  continually  assesses  whether  the  recovery  of  the  regulatory  assets  is  probable  by  considering  such  factors  as
regulatory  changes  and  the  impact  of  competition.  Northern  Border  Pipeline  believes  the  recovery  of  the  existing
regulatory assets is probable. If future recovery ceases to be probable, Northern Border Pipeline would be required to write
off the regulatory assets at that time. At December 31, 2003 and 2002, Northern Border Pipeline has reflected regulatory
assets of approximately $8.2 million and $10.5 million, respectively, in other assets on the balance sheet. Northern Border
Pipeline is recovering the regulatory assets from its shippers over varying time periods, which range from five to 44 years.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-19

2.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (continued)

(C)

Revenue Recognition

2 0 0 3   A N N U A L   R E P O RT

F-19

Northern Border Pipeline transports gas for shippers under a tariff regulated by the FERC. The tariff specifies the calculation
of amounts to be paid by shippers and the general terms and conditions of transportation service on the pipeline system.
Northern Border Pipeline’s revenues are derived from agreements for the receipt and delivery of gas at points along the
pipeline system as specified in each shipper’s individual transportation contract. Revenues for Northern Border Pipeline are
recognized based upon contracted capacity and actual volumes transported under transportation service agreements. An
allowance for doubtful accounts is recorded in situations where collectability is not reasonably assured. Northern Border
Pipeline does not own the gas that it transports, and therefore it does not assume the related natural gas commodity risk. 

(D)

Income Taxes

Income taxes are the responsibility of the Partners and are not reflected in these financial statements. However, the
Northern  Border  Pipeline  FERC  tariff  establishes  the  method  of  accounting  for  and  calculating  income  taxes  and
requires Northern Border Pipeline to reflect in its rates the income taxes, which would have been paid or accrued if
Northern Border Pipeline were organized during the period as a corporation. As a result, for purposes of determining
transportation rates in calculating the return allowed by the FERC, Partners’ capital and rate base are reduced by the
amount equivalent to the net accumulated deferred income taxes. Such amounts were approximately $350 million
and $343 million at December 31, 2003 and 2002, respectively, and are primarily related to accelerated depreciation
and other plant-related differences.

(E)

Cash and Cash Equivalents

Cash equivalents consist of highly liquid investments with original maturities of three months or less. The carrying
amount of cash and cash equivalents approximates fair value because of the short maturity of these investments.

(F)

Property, Plant and Equipment and Related Depreciation and Amortization

Property, plant and equipment is stated at original cost. During periods of construction, Northern Border Pipeline is
permitted  to  capitalize  an  allowance  for  funds  used  during  construction,  which  represents  the  estimated  costs  of
funds used for construction purposes. The original cost of property retired is charged to accumulated depreciation
and amortization, net of salvage and cost of removal. No retirement gain or loss is included in income except in the
case of retirements or sales of entire regulated operating units.

Maintenance  and  repairs  are  charged  to  operations  in  the  period  incurred.  The  provision  for  depreciation  and
amortization  of  the  transmission  line  is  an  integral  part  of  Northern  Border  Pipeline’s  FERC  tariff.  The  effective
depreciation rate applied to Northern Border Pipeline’s transmission plant is 2.25%. Composite rates are applied to
all other functional groups of property having similar economic characteristics.

(G)

Risk Management

Financial instruments are used by Northern Border Pipeline in the management of its interest rate exposure. A control
environment has been established which includes policies and procedures for risk assessment and the approval, reporting
and monitoring of financial instrument activities. Northern Border Pipeline does not use these instruments for trading
purposes. SFAS No. 133, “Accounting for Derivative Instruments and Hedging Activities,” as amended by SFAS No. 137
and SFAS No. 138, requires that every derivative instrument (including certain derivative instruments embedded in other
contracts) be recorded on the balance sheet as either an asset or liability measured at its fair value. The statement requires
that changes in the derivative’s fair value be recognized currently in earnings unless specific hedge accounting criteria are
met. Special accounting for qualifying hedges allows a derivative’s gains and losses to offset related results on the hedged
item in the income statement, and requires that a company formally document, designate and assess the effectiveness of
transactions that receive hedge accounting. Northern Border Pipeline adopted SFAS No. 133 beginning January 1, 2001.
See Note 6 for a discussion of Northern Border Pipeline’s derivative instruments and hedging activities.

(H)

Reclassifications

Certain  reclassifications  have  been  made  to  the  financial  statements  for  prior  years  to  conform  with  the  current 
year presentation.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-20

F-20

T C   P I P E L I N E S ,   L P

3.

RATES AND REGULATORY ISSUES

Northern  Border  Pipeline  filed  a  rate  proceeding  with  the  FERC  in  May  1999  for,  among  other  things,  a
redetermination of its allowed equity rate of return. In September 2000, Northern Border Pipeline filed a stipulation
and agreement with the FERC that documented the proposed settlement of its 1999 rate case. The settlement was
approved  by  the  FERC  in  December  2000.  Under  the  settlement,  both  Northern  Border  Pipeline  and  its  existing
shippers will not be able to seek rate changes until November 1, 2005, at which time Northern Border Pipeline must
file a new rate case. 

After  the  FERC  approved  the  rate  case  settlement  and  prior  to  the  end  of  2000,  Northern  Border  Pipeline  made
estimated refund payments to its shippers totaling approximately $22.7 million, primarily related to the period from
December 1999 to November 2000. During the first quarter of 2001, Northern Border Pipeline paid the remaining
refund obligation to its shippers totaling approximately $6.8 million, which related to periods through January 2001.

On  March  16,  2000,  the  FERC  issued  an  order  granting  Northern  Border  Pipeline’s  application  for  a  certificate  to
construct and operate an expansion and extension of its pipeline system into Indiana (Project 2000). The facilities for
Project 2000 were placed into service on October 1, 2001.

In February 2003, Northern Border Pipeline filed to amend its FERC tariff to clarify the definition of company use gas,
which  is  gas  supplied  by  its  shippers  for  its  operations,  by  adding  detailed  language  to  the  broad  categories  that
comprise company use gas. Northern Border Pipeline had included in its collection of company use gas, quantities
that were equivalent to the cost of electric power at its electric-driven compressor stations during the period of June
2001  through  January  2003.  On  March  27,  2003,  the  FERC  issued  an  order  rejecting  Northern  Border  Pipeline’s
proposed tariff sheet revision and requiring refunds with interest within 90 days of the order. Northern Border Pipeline
made refunds to its shippers of $10.3 million in May 2003. 

4.

TRANSPORTATION SERVICE AGREEMENTS

Operating revenues are collected pursuant to the FERC tariff through firm transportation service agreements. The firm
service agreements extend for various terms with termination dates that range from March 2004 to December 2013.
Northern  Border  Pipeline  also  has  interruptible  transportation  service  agreements  and  other  transportation  service
agreements with numerous shippers. 

Under the capacity release provisions of Northern Border Pipeline’s FERC tariff, shippers are allowed to release all or
part of their capacity either permanently for the full term of the contract or temporarily. A temporary capacity release
does not relieve the original contract shipper from its payment obligations if the replacement shipper fails to pay for
the capacity temporarily released to it.

For the year ended December 31, 2003, Northern Border Pipeline’s largest shippers were BP Canada Energy Marketing
Corp.  (BP  Canada),  Pan-Alberta  Gas  (U.S.)  Inc.  (Pan-Alberta)  and  EnCana  Marketing  U.S.A.  Inc.  (EnCana).  At
December 31,  2003,  BP  Canada  had  approximately  21%  of  the  contracted  firm  capacity  and  EnCana  had
approximately 19% of the contracted firm capacity. Pan-Alberta’s firm service agreements, which had been managed
by Mirant Americas Energy Marketing, LP, terminated October 31, 2003. The BP Canada firm service agreements extend
for various terms with termination dates from October 2004 to February 2012. The EnCana firm service agreements
extend for various terms with termination dates from March 2004 to June 2009. Operating revenues from BP Canada,
EnCana, and Pan-Alberta for the year ended December 31, 2003, were $54.7 million, $32.9 million, and $45.5 million,
respectively.  For  the  years  ended  December  31,  2002  and  2001,  Northern  Border  Pipeline’s  largest  shippers  were 
Pan-Alberta and Mirant with combined operating revenues of $105.5 million and $80.7 million, respectively. 

At December 31, 2003, there is no contracted firm capacity held by shippers affiliated with Northern Border Pipeline.
Previously, some of Northern Border Pipeline’s shippers have been affiliated with its general partners. Operating revenues
from affiliates were $1.4 million and $52.1 million for the years ended December 31, 2002, and 2001, respectively. 

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-21

5.

CREDIT FACILITIES AND LONG-TERM DEBT

Detailed information on long-term debt is as follows:

(in thousands)

1992 Pipeline Senior Notes – average 8.57% 
at December 31, 2002, paid in 2003

2002 Pipeline Credit Agreement – average 1.95%
and 2.05% at December 31, 2003 and 2002, 
respectively, due 2005

1999 Pipeline Senior Notes – 7.75%, due 2009
2001 Pipeline Senior Notes – 7.50%, due 2021
2002 Pipeline Senior Notes – 6.25%, due 2007
Fair value adjustment for interest rate swaps (Note 6)
Unamortized debt discount
Total
Less: Current maturities of long-term debt
Long-term debt

2 0 0 3   A N N U A L   R E P O RT

F-21

December 31

2003

2002

$

–

$ 

65,000

131,000
200,000
250,000
225,000
16,648
(1,150)
821,498
–
821,498

$

89,000
200,000
250,000
225,000
21,204
(1,298)
848,906
65,000
783,906

$

Northern  Border  Pipeline  has  entered  into  revolving  credit  facilities,  which  are  used  for  capital  expenditures,
acquisitions  and  general  business  purposes  and  for  refinancing  existing  indebtedness.  Northern  Border  Pipeline
entered  into  a  $175  million  three-year  credit  agreement  (2002  Pipeline  Credit  Agreement)  with  certain  financial
institutions in May 2002. The 2002 Pipeline Credit Agreement permits Northern Border Pipeline to choose among
various interest rate options, to specify the portion of the borrowings to be covered by specific interest rate options
and to specify the interest rate period. Northern Border Pipeline is required to pay a fee on the principal commitment
amount of $175 million.

In April 2002, Northern Border Pipeline completed a private offering of $225 million of 6.25% Senior Notes due 2007
(2002  Pipeline  Senior  Notes)  and  in  September  2001,  Northern  Border  Pipeline  completed  a  private  offering  of 
$250 million of 7.50% Senior Notes due 2021 (2001 Pipeline Senior Notes). The 2002 Pipeline Senior Notes and 2001
Pipeline  Senior  Notes  were  subsequently  exchanged  in  registered  offerings  for  notes  with  substantially  identical
terms. The proceeds from the senior notes were used to reduce indebtedness outstanding.

Interest  paid,  net  of  amounts  capitalized,  during  the  years  ended  December  31,  2003,  2002  and  2001  was 
$47.8 million, $55.3 million and $53.9 million, respectively.

Aggregate required repayments of long-term debt are as follows: $131 million and $225 million for 2005 and 2007,
respectively. Aggregate required repayments of long-term debt thereafter total $450 million. There are no required
repayment obligations for 2004, 2006 or 2008.

Certain  of  Northern  Border  Pipeline’s  long-term  debt  and  credit  arrangements  contain  requirements  as  to  the
maintenance  of  minimum  partners’  capital  and  debt  to  capitalization  ratios,  leverage  ratios  and  interest  coverage
ratios that restrict the incurrence of other indebtedness by Northern Border Pipeline and also place certain restrictions
on  distributions  to  the  partners  of  Northern  Border  Pipeline.  The  2002  Pipeline  Credit  Agreement  requires  the
maintenance of a ratio of EBITDA (net income plus interest expense, income taxes and depreciation and amortization)
to interest expense of greater than 3 to 1. The 2002 Pipeline Credit Agreement also requires the maintenance of the
ratio of indebtedness to EBITDA of no more than 4.5 to 1. At December 31, 2003, Northern Border Pipeline was in
compliance with its financial covenants.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-22

F-22

T C   P I P E L I N E S ,   L P

5.

CREDIT FACILITIES AND LONG-TERM DEBT (continued)

The following estimated fair values of financial instruments represent the amount at which each instrument could be
exchanged in a current transaction between willing parties. Based on quoted market prices for similar issues with
similar  terms  and  remaining  maturities,  the  estimated  fair  value  of  the  1992  Pipeline  Senior  Notes,  1999  Pipeline
Senior  Notes,  2001  Pipeline  Senior  Notes  and  2002  Pipeline  Senior  Notes  was  approximately  $675  million  and 
$827 million at December 31, 2003 and 2002, respectively. Northern Border Pipeline presently intends to maintain
the current schedule of maturities for the 1999 Pipeline Senior Notes, the 2001 Pipeline Senior Notes and the 2002
Pipeline Senior Notes, which will result in no gains or losses on their respective repayments. The fair value of Northern
Border Pipeline’s variable rate debt approximates the carrying value since the interest rates are periodically adjusted
to reflect current market conditions.

6.

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

As a result of the adoption of SFAS No. 133 on January 1, 2001, Northern Border Pipeline reclassified approximately
$11.1 million from long-term debt to accumulated other comprehensive income related to unamortized proceeds
from  the  termination  of  interest  rate  swap  agreements.  Also  upon  adoption  of  SFAS  No.  133,  Northern  Border
Pipeline designated an outstanding interest rate swap agreement with a notional amount of $40 million as a cash
flow  hedge.  As  a  result,  Northern  Border  Pipeline  recorded  a  non-cash  loss  in  accumulated  other  comprehensive
income of approximately $0.8 million. The $40 million interest rate swap agreement terminated in November 2001.

Prior to the anticipated issuance of fixed rate debt, Northern Border Pipeline entered into forward starting interest
rate swap agreements. The interest rate swaps were designated as cash flow hedges as they were entered into to
hedge the fluctuations in Treasury rates and spreads between the execution date of the swaps and the issuance of
the fixed rate debt. The notional amount of the interest rate swaps did not exceed the expected principal amount of
fixed  rate  debt  to  be  issued.  Upon  issuance  of  the  fixed  rate  debt,  the  swaps  were  terminated  and  the  proceeds
received or amounts paid to terminate the swaps were recorded in accumulated other comprehensive income and
amortized to interest expense over the term of the debt. 

For the year ended December 31, 2002, Northern Border Pipeline received $2.4 million from terminated interest rate
swaps.  For  the  year  ended  December  31,  2001,  Northern  Border  Pipeline  paid  approximately  $4.1  million  to
terminate interest rate swaps.

During  the  years  ended  December  31,  2003,  2002,  and  2001  respectively,  Northern  Border  Pipeline  amortized
approximately  $1.6  million,  $1.4  million,  and  $1.2  million  related  to  the  terminated  derivatives  as  a  reduction  to
interest  expense  from  accumulated  other  comprehensive  income.  Northern  Border  Pipeline  expects  to  amortize
approximately $1.6 million as a reduction to interest expense in 2004.

Northern Border Pipeline entered into interest rate swap agreements with notional amounts totaling $225 million in
May 2002. Under the interest rate swap agreements, Northern Border Pipeline makes payments to counterparties at
variable rates based on the London Interbank Offered Rate and in return receives payments based on a 6.25% fixed
rate. At December 31, 2003 and 2002, the average effective interest rate on Northern Border Pipeline’s interest rate
swap agreements was 2.31% and 2.70%, respectively. Northern Border Pipeline’s interest rate swap agreements have
been designated as fair value hedges as they were entered into to hedge the fluctuations in the market value of the
2002  Pipeline  Senior  Notes.  The  accompanying  balance  sheet  at  December  31,  2002,  reflects  a  non-cash  gain  of
approximately  $21.2  million  in  derivative  financial  assets  with  a  corresponding  increase  in  long-term  debt.  The
accompanying  balance  sheet  at  December  31,  2003,  reflects  a  non-cash  gain  of  approximately  $16.6  million  in
derivative financial assets with a corresponding increase in long-term debt.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-23

7.

COMMITMENTS AND CONTINGENCIES

Operating Leases

Future minimum lease payments under non-cancelable operating leases on office space and rights-of-way are as follows:

2 0 0 3   A N N U A L   R E P O RT

F-23

(in thousands)

Year ending December 31,              
2004  
2005   
2006
2007   
2008
Thereafter

Cash Balance Plan

$

$ 

5,757
2,392
2,392
2,392
2,392
3,929
19,254

As further discussed in Note 11, on December 31, 2003, Enron filed a motion seeking approval of the Bankruptcy
Court to provide additional funding to, and for authority to terminate the Enron Corp. Cash Balance Plan and certain
other defined benefit plans. Northern Border Pipeline recorded charges associated with the termination of the cash
balance plan of $3.1 million in 2003. Northern Border Pipeline believes this accrual is adequate to cover the likely
allocation of these costs.

Capital expenditures

Total capital expenditures for 2004 are estimated to be $14 million. Funds required to meet the capital expenditures
for 2004 are anticipated to be provided primarily by borrowings under the 2002 Pipeline Credit Agreement and using
operating cash flows.

Environmental Matters 

Northern Border Pipeline is not aware of any material contingent liabilities with respect to compliance with applicable
environmental laws and regulations.

Other

On July 31, 2001, the Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation (Tribes) filed a lawsuit in Tribal
Court  against  Northern  Border  Pipeline  to  collect  more  than  $3  million  in  back  taxes,  together  with  interest  and
penalties. The lawsuit relates to a utilities tax on certain of Northern Border Pipeline’s properties within the Fort Peck
Indian  Reservation.  The  Tribes  and  Northern  Border  Pipeline,  through  a  mediation  process,  have  held  settlement
discussions  and  have  reached  a  settlement  in  principle  on  pipeline  rights-of-way  lease  and  taxation  issues.  Final
documentation has been completed and is subject to the approval of the Bureau of Indian Affairs, which the parties
believe  will  be  obtained  in  the  very  near  term.  This  settlement  grants  to  Northern  Border  Pipeline,  among  other
things,  (i)  an  option  to  renew  the  pipeline  rights-of-way  lease  upon  agreed  terms  and  conditions  on  or  before
April 11,  2011  for  a  term  of  25  years  with  a  renewal  right  for  an  additional  25  years;  (ii)  a  present  right  to  use
additional  tribal  lands  for  expanded  facilities;  and  (iii)  release  and  satisfaction  of  all  tribal  taxes  against  Northern
Border  Pipeline.  In  consideration  of  this  option  and  other  benefits,  Northern  Border  Pipeline  will  pay  a  lump  sum
amount of $5.9 million and an annual amount of approximately $1.5 million beginning April 2004. Northern Border
Pipeline intends to seek regulatory recovery of the costs resulting from the settlement.

Various  legal  actions  that  have  arisen  in  the  ordinary  course  of  business  are  pending.  Northern  Border  Pipeline
believes  that  the  resolution  of  these  issues  will  not  have  a  material  adverse  impact  on  Northern  Border  Pipeline’s
results of operations or financial position.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-24

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T C   P I P E L I N E S ,   L P

8.

QUARTERLY FINANCIAL DATA (Unaudited)

(in thousands)

2003

2002

First Quarter
Second Quarter
Third Quarter
Fourth Quarter

First Quarter
Second Quarter
Third Quarter
Fourth Quarter

9.

ACCOUNTING PRONOUNCEMENTS

Operating
Revenues, net

Operating
Income

Net Income
to Partners

$

$

79,892
80,659
81,192
82,442

78,155
80,173
81,553
81,169

$

$

48,639
48,915
48,050
47,377

49,895
52,014
51,843
38,706

$

$

36,734
37,617
37,195
36,654

37,670
38,506
39,197
27,346

In 2001, the Financial Accounting Standards Board (“FASB”) issued SFAS No. 143, “Accounting for Asset Retirement
Obligations.” SFAS No. 143 requires entities to record the fair value of a liability for an asset retirement obligation in
the period in which it is incurred, if the liability can be reasonably estimated. When the liability is initially recorded,
the carrying amount of the related asset is increased by the same amount. Over time, the liability is accreted to its
future value and the accretion is recorded to expense. The initial adjustment to the asset is depreciated over its useful
life. Upon settlement of the liability, an entity either settles the obligation for its recorded amount or incurs a gain or
loss.  In  some  instances,  Northern  Border  Pipeline  is  obligated  by  contractual  terms  or  regulatory  requirements  to
remove facilities or perform other remediation upon retirement. Northern Border Pipeline was unable to estimate and
record  liabilities  for  its  obligations  that  fall  under  the  provisions  of  this  statement  because  it  cannot  reasonably
estimate when such obligations would be settled. Effective January 1, 2003, Northern Border Pipeline adopted SFAS
No. 143, which did not have a material impact on its financial position or results of operations.

In  November  2002,  the  FASB  issued  Interpretation  No.  (FIN)  45,  “Guarantor’s  Accounting  and  Disclosure
Requirements  for  Guarantees,  Including  Indirect  Guarantees  of  Indebtedness  of  Others”.  This  interpretation
elaborates  on  the  disclosures  to  be  made  by  a  guarantor  in  its  interim  and  annual  financial  statements  about  its
obligations under certain guarantees that it has issued. It also clarifies that a guarantor is required to recognize, at
the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee. The
initial recognition and initial measurement provisions of this interpretation are applicable on a prospective basis to
guarantees issued or modified after December 31, 2002. FIN 45 did not have a material impact on Northern Border
Pipeline’s financial position or results of operations. 

In  April  2003,  the  FASB  issued  SFAS  No.  149,  “Amendment  of  Statement  No.  133  on  Derivative  Instruments  and
Hedging  Activities.”  SFAS  No.  149  amends  and  clarifies  accounting  for  derivative  instruments,  including  certain
derivative instruments embedded in other contracts, and for hedging activities under SFAS No. 133. SFAS No. 149
did not have a material impact on Northern Border Pipeline’s financial position or results of operations.

In May 2003, the FASB issued SFAS No. 150, “Accounting for Certain Financial Instruments with Characteristics of
both Liabilities and Equity.” This statement establishes standards for how an issuer classifies and measures certain
financial  instruments  with  characteristics  of  both  liabilities  and  equity.  SFAS  No.  150  is  effective  for  financial
instruments entered into or modified after May 31, 2003. SFAS No. 150 did not have a material impact on Northern
Border Pipeline’s financial position or results of operations. 

In  May  2003,  the  Emerging  Issues  Task  Force  of  the  FASB  issued  EITF  No.  00-21,  “Revenue  Arrangements  with
Multiple Deliverables.” EITF 00-21 requires companies to separate components of a complex contract into separate
units  of  accounting.  EITF  00-21  was  effective  for  contracts  signed  after  June  30,  2003,  although  retroactive
application  to  existing  contracts  was  permitted.  EITF  00-21  did  not  have  a  material  impact  on  Northern  Border
Pipeline’s financial position or results of operations.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-25

2 0 0 3   A N N U A L   R E P O RT

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10.  OTHER INCOME (EXPENSE)

Other  income  (expense)  on  the  statement  of  income  includes  such  items  as  investment  income,  nonoperating
revenues and expenses, and nonrecurring other income and expense items. For the year ended December 31, 2003,
other expense included $0.6 million for a repayment of amounts previously received for vacated microwave frequency
bands.  For  the  year  ended  December  31,  2002,  other  income  included  $0.6  million  for  amounts  received  for
previously vacated microwave frequency bands. For the year ended December 31, 2001, other income included bad
debt expense of $1.5 million related to the bankruptcy of a telecommunications company that had purchased excess
capacity on Northern Border Pipeline’s communication system and a $0.7 million charge for reserves established.

11. 

RELATIONSHIPS WITH ENRON

In December 2001, Enron and certain of its subsidiaries filed voluntary petitions for Chapter 11 reorganization with
the U.S. Bankruptcy Court. Northern Plains was not included in the bankruptcy filing and management believes that
Northern Plains will continue to be able to meet its operational and administrative service obligations under the existing
operating agreement. Enron North America Corp. (ENA), a subsidiary of Enron, was included in the bankruptcy filing.

At  the  time  of  the  bankruptcy  filing,  ENA  had  firm  service  agreements  representing  approximately  3.5%  of
contracted capacity, a portion of which (1.1%) had been temporarily released to a third party until October 31, 2002.
Northern  Border  Pipeline  recorded  a  bad  debt  expense  of  approximately  $1.3  million  representing  ENA’s  unpaid
November  and  December  2001  transportation,  which  is  included  in  operations  and  maintenance  expense  on  the
statement of income. 

On June 13, 2002, the Bankruptcy Court approved a Stipulation and Order entered into on May 15, 2002, by ENA
and Northern Border Pipeline pursuant to which ENA agreed that all but one of the shipper contracts, representing
1.7% of pipeline capacity, would be deemed rejected and terminated. The remaining contract was terminated in the
third  quarter  of  2002.  For  the  year  ended  December  31,  2002,  Northern  Border  Pipeline  has  experienced  lost
revenues of approximately $1.8 million related to ENA’s capacity. Northern Border Pipeline has filed proofs of claims
regarding the amount of damages for breach of contract and other claims in the bankruptcy proceeding. However,
Northern Border Pipeline cannot predict the amounts, if any, that it will collect or the timing of collection. Northern
Border Pipeline believes, however, that any amounts collected will not be material.

On December 31, 2003, Enron filed a motion seeking approval of the Bankruptcy Court to provide additional funding to,
and for authority to terminate the Enron Corp. Cash Balance Plan (Plan) and certain other defined benefit plans of Enron’s
affiliates in ‘standard terminations’ within the meaning of Section 4041 of the Employee Retirement Income Security Act
of 1974, as amended (ERISA). Such standard terminations would satisfy all of the obligations of Enron and its affiliates
with respect to funding liabilities under the Plan. In addition, a standard termination would eliminate the contingent claims
of Pension Benefit Guaranty Corporation (PBGC) against Enron and its affiliates with respect to funding liabilities under
the Plan. On January 30, 2004, the Bankruptcy Court entered an order authorizing termination, additional funding and
other actions necessary to effect the relief requested. Pursuant to the Bankruptcy Court order, any contributions to the
Plan are subject to the prior receipt of a favorable determination by the Internal Revenue Service that the Plan is tax-
qualified as of the date of termination. In addition, the Bankruptcy Court order provides that the rights of PBGC and
others to assert that their filed claims have not been released or adjudicated as a result of the Bankruptcy Court order and
Enron and all other interested parties retained the right to assert that such claims had been adjudicated or released. 

Enron management has informed Northern Plains that it will seek funding contributions from each member of its
ERISA controlled group of corporations that employs, or employed, individuals who are, or were, covered under the
Plan. Northern Plains has advised Northern Border Pipeline that Northern Plains is a member of a controlled group of
corporations of Enron that employs, or employed, individuals who are, or were, covered under the Plan and that an
amount of approximately $3.1 million has been assessed for Northern Border Pipeline’s proportionate allocation of
Northern  Plains’  proportionate  share  of  the  up  to  $200  million  estimated  termination  costs  authorized  by  the
Bankruptcy Court order. Under the operating agreement with Northern Plains, these increased costs may be Northern
Border Pipeline’s responsibility. While the final amounts have not been determined, Northern Border Pipeline believes
this accrual is adequate to cover the allocation of these costs.

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page F-26

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T C   P I P E L I N E S ,   L P

11. 

RELATIONSHIPS WITH ENRON (continued)

Northern  Border  Pipeline  continues  to  monitor  developments  at  Enron,  to  assess  the  impact  on  Northern  Border
Pipeline of its existing agreements and relationships with Enron, and to take appropriate action to protect Northern
Border Pipeline’s interests.

12.

SUBSEQUENT EVENTS

In  December  2003,  Northern  Border  Pipeline’s  management  committee  voted  to  (i)  issue  equity  cash  calls  to  its
partners in the total amount of $130 million in early 2004 and $90 million in 2007; (ii) fund future growth capital
expenditures with 50% equity capital contributions from its partners; and (iii) change the cash distribution policy of
Northern Border Pipeline. Effective January 1, 2004, cash distributions will be equal to 100% of distributable cash
flow as determined from Northern Border Pipeline’s financial statements based upon earnings before interest, taxes,
depreciation and amortization less interest expense and less maintenance capital expenditures. Effective January 1,
2008 the cash distribution policy will be adjusted to maintain a consistent capital structure. Under the previous cash
distribution  policy,  approximately  $28-$30  million  was  retained  annually  within  Northern  Border  Pipeline  to
periodically repay outstanding bank debt. The additional equity contributions in 2004 will be utilized to fully repay
Northern  Border  Pipeline’s  existing  bank  debt  and  thereby  reduce  its  debt  leverage  in  light  of  existing  business
conditions. Upon repayment of the existing bank debt, Northern Border Pipeline’s next scheduled debt maturity is
May 2007.

Northern Border Pipeline makes distributions to it general partners approximately one month following the end of
the quarter. The distribution for the fourth quarter of 2003 of approximately $48.1 million was declared in January
2004 to be paid in January 2004.

In  January  2004,  the  Partnership  and  TC  PipeLines  contributed  $45.5  million  and  $19.5  million,  respectively,  to
Northern Border Pipeline to be used by Northern Border Pipeline to repay a portion of its existing indebtedness under
the 2002 Pipeline Credit Agreement.

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INDEPENDENT AUDITORS’ REPORT ON SCHEDULE

Northern Border Pipeline Company:

We have audited in accordance with auditing standards generally accepted in the United States of America, the financial
statements of Northern Border Pipeline Company as of December 31, 2003 and 2002 and for each of the years in the three-year
period ended December 31, 2003 included in this Form 10-K, and have issued our report thereon dated January 27, 2004. 

Our  audits  were  made  for  the  purpose  of  forming  an  opinion  on  the  basic  financial  statements  taken  as  a  whole.  The
schedule  of  Northern  Border  Pipeline  Company  listed  in  Item  14  of  Part  IV  of  this  Form  10-K  is  the  responsibility  of  the
Company’s management and is presented for purposes of complying with the Securities and Exchange Commission’s rules
and is not part of the basic financial statements. This schedule has been subjected to the auditing procedures applied in the
audits of the basic financial statements and, in our opinion, fairly states in all material respects, the financial data required
to be set forth therein in relation to the basic financial statements taken as a whole.

KPMG LLP

Omaha, Nebraska 
January 27, 2004

T.9.27 TC Pipe LP 03 AR.4  3/30/04  10:11 PM  Page S-2

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T C   P I P E L I N E S ,   L P

NORTHERN BORDER PIPELINE COMPANY

SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS
FOR THE YEARS ENDED DECEMBER 31, 2003, 2002 AND 2001

(In Thousands)

SCHEDULE II

Column A

Description

Reserve for regulatory issues
2003
2002
2001

Column B

Balance at
Beginning
of Year

$ 12,294
$  2,531
$ 1,800

Allowance for doubtful accounts
2003
2002
2001

$ 4,805
$ 3,176
–
$

Column C
Additions 

Charged to
Costs and
Expenses

Charged
to Other
Accounts

Column D
Deductions
For Purpose For
Which Reserves
Were Created

Column E

Balance at
End of Year

$ 4,282
$ 9,763
731
$

$
10
$ 3,452
$ 3,176

$ –
$ –
$ –

$ –
$ –
$ –

$ 10,261
–
$
–
$

$
–
$ 1,823
–
$

$  6,315
$ 12,294
$ 2,531

$ 4,815
$ 4,805
$ 3,176