<PAGE>

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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                             ---------------------

                                   FORM 10-Q

<Table>
<S>         <C>
(Mark One)
   [X]
</Table>

                QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

               FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2001

                                       OR

<Table>
<S>         <C>
   [  ]
</Table>

               TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

             FOR THE TRANSITION PERIOD FROM           TO

                         COMMISSION FILE NUMBER 1-7320

                             ---------------------

                              ANR PIPELINE COMPANY
             (Exact Name of Registrant as Specified in its Charter)

<Table>
<S>                                                <C>
                  DELAWARE                                          38-1281775
        (State or Other Jurisdiction                             (I.R.S. Employer
     of Incorporation or Organization)                         Identification No.)

              EL PASO BUILDING
           1001 LOUISIANA STREET                                      77002
               HOUSTON, TEXAS                                       (Zip Code)
  (Address of Principal Executive Offices)
</Table>

       Registrant's Telephone Number, Including Area Code: (713) 420-2600

                             ---------------------

     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 the number of shares outstanding of each of the issuer's classes
of common stock, as of the latest practicable date.

     Common stock, par value $100 per share. Shares outstanding on November 6,
2001: 1,000.

     ANR PIPELINE COMPANY MEETS THE CONDITIONS OF GENERAL INSTRUCTION H(1)(a)
AND (b) OF FORM 10-Q AND IS THEREFORE FILING THIS REPORT WITH A REDUCED
DISCLOSURE FORMAT AS PERMITTED BY SUCH INSTRUCTION.
--------------------------------------------------------------------------------
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<PAGE>

                        PART I -- FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

                              ANR PIPELINE COMPANY

                  CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                 (IN MILLIONS)
                                  (UNAUDITED)

<Table>
<Caption>
                                                        QUARTER ENDED       NINE MONTHS ENDED
                                                        SEPTEMBER 30,         SEPTEMBER 30,
                                                        --------------      ------------------
                                                        2001      2000      2001         2000
                                                        ----      ----      -----        -----
<S>                                                     <C>       <C>       <C>          <C>
Operating revenues....................................  $124      $140      $466         $456
                                                        ----      ----      ----         ----
Operating expenses
  Operation and maintenance...........................    59        89       239          258
  Merger-related costs................................     6        --       180           --
  Depreciation, depletion and amortization............     9        10        27           29
  Taxes, other than income taxes......................     6         7        20           16
                                                        ----      ----      ----         ----
                                                          80       106       466          303
                                                        ----      ----      ----         ----
Operating income......................................    44        34        --          153
                                                        ----      ----      ----         ----
Other income
  Earnings from unconsolidated affiliates.............    --         3         9            8
  Other, net..........................................    (1)        1         3            9
                                                        ----      ----      ----         ----
                                                          (1)        4        12           17
                                                        ----      ----      ----         ----
Income before interest, income taxes and other
  charges.............................................    43        38        12          170
                                                        ----      ----      ----         ----
Non-affiliated interest and debt expense..............    11        11        32           35
Affiliated interest income, net.......................    (2)       (2)       (4)          (7)
Income taxes..........................................    12        11        (6)          53
                                                        ----      ----      ----         ----
                                                          21        20        22           81
                                                        ----      ----      ----         ----
Income (loss) before extraordinary items..............    22        18       (10)          89
Extraordinary items, net of income taxes..............    (1)       --        (2)          --
                                                        ----      ----      ----         ----
Net income (loss).....................................  $ 21      $ 18      $(12)        $ 89
                                                        ====      ====      ====         ====
</Table>

                            See accompanying notes.

                                        1
<PAGE>

                              ANR PIPELINE COMPANY

                     CONDENSED CONSOLIDATED BALANCE SHEETS
                      (IN MILLIONS, EXCEPT SHARE AMOUNTS)
                                  (UNAUDITED)

<Table>
<Caption>
                                                              SEPTEMBER 30,   DECEMBER 31,
                                                                  2001            2000
                                                              -------------   ------------
<S>                                                           <C>             <C>
                                          ASSETS


Current assets
  Cash and cash equivalents.................................     $    7          $    1
  Accounts and notes receivable, net
     Customer...............................................         60             118
     Affiliates.............................................        264             161
     Other..................................................          4              --
  Materials and supplies....................................         18              29
  Other.....................................................         61              16
                                                                 ------          ------
          Total current assets..............................        414             325
                                                                 ------          ------
Property, plant, and equipment, at cost.....................      3,495           3,468
Less accumulated depreciation, depletion and amortization...      2,187           2,196
                                                                 ------          ------
          Total property, plant and equipment, net..........      1,308           1,272
                                                                 ------          ------
Other assets
  Investments in unconsolidated affiliates..................         72             113
  Other.....................................................          5               5
                                                                 ------          ------
                                                                     77             118
                                                                 ------          ------
          Total assets......................................     $1,799          $1,715
                                                                 ======          ======

                           LIABILITIES AND STOCKHOLDER'S EQUITY

Current liabilities
  Accounts and notes payable
     Trade..................................................     $   35          $   14
     Affiliates.............................................         27               4
     Other..................................................         53              59
  Interest payable..........................................         15               9
  Taxes payable.............................................         30              44
  Other.....................................................         19              23
                                                                 ------          ------
          Total current liabilities.........................        179             153
                                                                 ------          ------
Long-term debt..............................................        498             498
                                                                 ------          ------
Other
  Deferred income taxes.....................................        212             230
  Other.....................................................        152              34
                                                                 ------          ------
                                                                    364             264
                                                                 ------          ------
Commitments and contingencies
Stockholder's equity
  Common stock, par value $100 per share; authorized and
     issued 1,000 shares....................................         --              --
  Additional paid-in capital................................        466             466
  Retained earnings.........................................        292             334
                                                                 ------          ------
          Total stockholder's equity........................        758             800
                                                                 ------          ------
          Total liabilities and stockholder's equity........     $1,799          $1,715
                                                                 ======          ======
</Table>

                            See accompanying notes.

                                        2
<PAGE>

                              ANR PIPELINE COMPANY

                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN MILLIONS)
                                  (UNAUDITED)

<Table>
<Caption>
                                                              NINE MONTHS ENDED
                                                                SEPTEMBER 30,
                                                              ------------------
                                                               2001        2000
                                                              ------      ------
<S>                                                           <C>         <C>
Cash flows from operating activities
  Net income (loss).........................................  $ (12)       $ 89
  Adjustments to reconcile net income (loss) to net cash
     from operating activities
     Depreciation, depletion and amortization...............     27          29
     Deferred income tax expense (benefit)..................    (11)         20
     Undistributed earnings of unconsolidated affiliates....     (3)         --
     Non-cash portion of merger-related costs...............    158          --
  Working capital changes, net of non-cash transactions.....     14          (8)
  Non-working capital changes and other.....................    (20)         11
                                                              -----        ----
       Net cash provided by operating activities............    153         141
                                                              -----        ----
Cash flows from investing activities
  Additions to property, plant and equipment................    (56)        (72)
  Proceeds from the sale of investments.....................     50          --
  Change in notes receivable from related parties...........   (117)          5
  Net proceeds from the sale of assets......................      6          --
                                                              -----        ----
       Net cash used in investing activities................   (117)        (67)
                                                              -----        ----
Cash flows from financing activities
  Dividends paid............................................    (30)        (74)
  Other.....................................................     --          (1)
                                                              -----        ----
       Net cash used in financing activities................    (30)        (75)
                                                              -----        ----
Increase (decrease) in cash and cash equivalents............      6          (1)
Cash and cash equivalents
  Beginning of period.......................................      1           3
                                                              -----        ----
  End of period.............................................  $   7        $  2
                                                              =====        ====
</Table>

                            See accompanying notes.

                                        3
<PAGE>

                              ANR PIPELINE COMPANY

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                  (UNAUDITED)

1. BASIS OF PRESENTATION

     Our 2000 Annual Report on Form 10-K includes a summary of our significant
accounting policies and other disclosures. You should read it in conjunction
with this Quarterly Report on Form 10-Q. The financial statements as of
September 30, 2001, and for the quarters and nine months ended September 30,
2001 and 2000, are unaudited. The balance sheet as of December 31, 2000, is
derived from the audited balance sheet included in our Annual Report on Form
10-K. These financial statements have been prepared pursuant to the rules and
regulations of the U.S. Securities and Exchange Commission and do not include
all disclosures required by accounting principles generally accepted in the
United States. In our opinion, we have made all adjustments, all of which are of
a normal, recurring nature (except for merger-related costs and changes in
accounting estimates discussed below), to fairly present our interim period
results. Information for interim periods may not necessarily indicate the
results of operations for the entire year due to the seasonal nature of our
businesses. The prior period information also includes reclassifications which
were made to conform to the current period presentation. These reclassifications
have no effect on our reported net income or stockholder's equity.

2. MERGER-RELATED COSTS

     During the quarter and nine months ended September 30, 2001, we incurred
merger-related costs of $6 million and $180 million associated with El Paso
Corporation's merger with The Coastal Corporation. These charges consist of
employee severance, retention and transition costs, including pension and
postretirement benefits settled and curtailed under existing benefit plans for
severed employees and early retirees that occurred as a result of El Paso's
merger-related workforce reduction and consolidation. Following the merger,
approximately 900 full time positions were eliminated through a combination of
early retirements and terminations. As of September 30, 2001, substantially all
of our cash based employee costs have been paid. Our merger-related costs also
include estimated charges associated with relocating our headquarters to
Houston, Texas, including lease related costs, write-offs of leasehold
improvements, and other charges related to our lease in Detroit. Total estimated
charges were $95 million and were recorded during the second quarter 2001, at
the time we completed our relocation. Future developments, such as sub-leases of
our vacated space or other events, could impact our estimated charge, and these
changes could be material to the amounts we originally recorded.

3. CHANGES IN ACCOUNTING ESTIMATES

     Included in our operation and maintenance costs for the nine months ended
September 30, 2001, were approximately $11 million in costs related to changes
in our estimates of environmental remediation liabilities and the usability of
spare parts inventory in our operations. These changes arose as a result of an
ongoing evaluation of our operating standards, strategies and plans following
our parent's merger with El Paso. These changes in estimates reduced net income
before extraordinary items and net income for the nine months ended September
30, 2001 by approximately $7 million.

4. EXTRAORDINARY ITEMS

     As a result of El Paso's merger with Coastal, Deepwater Holdings Inc., our
unconsolidated affiliate, was required, under a Federal Trade Commission (FTC)
order, to dispose of its interests in the Stingray and U-T Offshore pipeline
systems, and we were required to dispose of our 16 percent interest in the
Iroquois pipeline system. For the nine months ended September 30, 2001, net
proceeds from these sales were approximately $65 million resulting in an
extraordinary loss of approximately $2 million, net of income taxes, including a
third quarter 2001 charge of $1 million to record additional estimated income
taxes on these sales.

                                        4
<PAGE>

5. COMMITMENTS AND CONTINGENCIES

  Legal Proceedings

     In 1997, we and a number of our affiliates were named defendants in actions
brought by Jack Grynberg on behalf of the U.S. Government under the False Claims
Act. Generally, these complaints allege an industry-wide conspiracy to under
report the heating value as well as the volumes of the natural gas produced from
federal and Native American lands, which deprived the U.S. Government of
royalties. These matters have been consolidated for pretrial purposes (In re:
Natural Gas Royalties Qui Tam Litigation, U.S. District Court for the District
of Wyoming). In May 2001, the court denied the defendants' motions to dismiss.

     We and a number of our affiliates were named defendants in Quinque
Operating Company, et al v. Gas Pipelines and Their Predecessors, et al, filed
in 1999 in the District Court of Stevens County, Kansas. This class action
complaint alleges that the defendants mismeasured natural gas volumes and
heating content of natural gas on non-federal and non-Native American lands. The
Quinque complaint was transferred to the same court handling the Grynberg
complaint and has now been sent back to Kansas State Court for further
proceedings. A motion to dismiss this case is pending.

     We are also a named defendant in numerous lawsuits and a named party in
numerous governmental proceedings arising in the ordinary course of our
business.

     While the outcome of the matters discussed above cannot be predicted with
certainty, based on information known to date, we do not expect the ultimate
resolution of these matters to have a material adverse effect on our ongoing
financial position, operating results or cash flows.

  Environmental

     We are subject to extensive federal, state and local laws and regulations
governing environmental quality and pollution control. These laws and
regulations require us to remove or remedy the effect on the environment of the
disposal or release of specified substances at current and former operating
sites. As of September 30, 2001, we had a reserve of approximately $16 million
for expected remediation costs. In addition, we expect to make capital
expenditures for environmental matters of approximately $37 million in the
aggregate for the years 2001 through 2006. These expenditures primarily relate
to compliance with clean air regulations.

     We have been designated and have received notice that we could be
designated, or have been asked for information to determine whether we could be
designated, as a Potentially Responsible Party (PRP) with respect to three
active sites under the Comprehensive Environmental Response, Compensation and
Liability Act (CERCLA) or state equivalents. We have sought to resolve our
liability as a PRP at these CERCLA sites, as appropriate, through
indemnification by third parties and/or settlements which provide for payment of
our allocable share of remediation costs. As of September 30, 2001, we have
estimated our share of the remediation costs at these sites to be approximately
$1 million and have provided reserves that we believe are adequate for such
costs. Since the cleanup costs are estimates and are subject to revision as more
information becomes available about the extent of remediation required, and
because in some cases we have asserted a defense to any liability, our estimates
could change. Moreover, liability under the federal CERCLA statute is joint and
several, meaning that we could be required to pay in excess of our pro rata
share of remediation costs. Our understanding of the financial strength of other
PRPs has been considered, where appropriate, in the determination of our
estimated liabilities. We presently believe that the costs associated with these
CERCLA sites will not have a material adverse effect on our financial position,
operating results or cash flows.

     In Michigan, where we have extensive operations, the Michigan Environmental
Response Act requires individuals, including corporations, who have caused
contamination to remediate the contamination to regulatory standards. Owners or
operators of contaminated property who did not cause the contamination are not
required to remediate the contamination, but must exercise due care in their use
of the property so that the contamination is not exacerbated and the property
does not pose a threat to human health. We estimate that the costs to comply
with the Michigan regulations will be approximately $15 million, which will be
expended over a period of several years and for which appropriate reserves have
been made.

                                        5
<PAGE>

     It is possible that new information or future developments could require us
to reassess our potential exposure related to environmental matters. We may
incur significant costs and liabilities in order to comply with existing
environmental laws and regulations. It is also possible that other developments,
such as increasingly strict environmental laws and regulations and claims for
damages to property, employees, other persons and the environment resulting from
our current or past operations, could result in substantial costs and
liabilities in the future. As this information becomes available, or other
relevant developments occur, we will adjust our accrual amounts accordingly.
While there are still uncertainties relating to the ultimate costs we may incur,
based upon our evaluation and experience to date, we believe the recorded
reserves are adequate.

  Rates and Regulatory

     In September 2001, the Federal Energy Regulatory Commission (FERC) issued a
Notice of Proposed Rulemaking (NOPR). The NOPR proposes to apply the standards
of conduct governing the relationship between interstate pipelines and marketing
affiliates to all energy affiliates. The proposed regulations, if adopted by
FERC, would dictate how all our energy affiliates conduct business and interact
with our interstate pipelines. We cannot predict the outcome of the NOPR, but
adoption of the regulations in substantially the form proposed would, at a
minimum, place additional administrative and operational burdens on us.

6. TRANSACTIONS WITH RELATED PARTIES

     We participate in a cash management program which matches short-term cash
excesses and requirements of participating affiliates, thus minimizing total
borrowing from outside sources. We had advanced $245 million at September 30,
2001, at a market rate of interest which was 3.7%. At December 31, 2000, we had
advanced $128 million.

     At September 30, 2001, we had accounts receivable from other related
parties of $19 million and $33 million at December 31, 2000. In addition, we had
accounts payable to other related parties of $27 million at September 30, 2001,
and $4 million at December 31, 2000. These balances were incurred in the normal
course of business.

7. NEW ACCOUNTING PRONOUNCEMENTS NOT YET ADOPTED

  Business Combinations

     In July 2001, the Financial Accounting Standards Board (FASB) issued
Statement of Financial Accounting Standards (SFAS) No. 141, Business
Combinations. This statement requires that all transactions that fit the
definition of a business combination be accounted for using the purchase method
and prohibits the use of the pooling of interests method for all business
combinations initiated after June 30, 2001. This statement also establishes
specific criteria for the recognition of intangible assets separately from
goodwill and requires unallocated negative goodwill to be written off
immediately as an extraordinary item. This standard will have an impact on any
business combination we undertake in the future. We are currently evaluating the
effects of this pronouncement on our historical financial statements.

  Goodwill and Other Intangible Assets

     In July 2001, the FASB issued SFAS No. 142, Goodwill and Other Intangible
Assets. This statement requires that goodwill no longer be amortized but
intermittently tested for impairment at least on an annual basis. Other
intangible assets are to be amortized over their useful life and reviewed for
impairment in accordance with the provisions of SFAS No. 121, Accounting for the
Impairment of Long-Lived Assets and Long-Lived Assets to be Disposed of. An
intangible asset with an indefinite useful life can no longer be amortized until
its useful life becomes determinable. This statement has various effective
dates, the most significant of which is January 1, 2002. We are currently
evaluating the effects of this pronouncement.

                                        6
<PAGE>

  Accounting for Asset Retirement Obligations

     In August 2001, the FASB issued SFAS No. 143, Accounting for Asset
Retirement Obligations. This statement requires companies to record a liability
relating to the retirement and removal of assets used in their business. The
liability is discounted to its present value, and the related asset value is
increased by the amount of the resulting liability. Over the life of the asset,
the liability will be accreted to its future value and eventually extinguished
when the asset is taken out of service. The provisions of this statement are
effective for fiscal years beginning after June 15, 2002. We are currently
evaluating the effects of this pronouncement.

  Accounting for the Impairment or Disposal of Long-Lived Assets

     In October 2001, the FASB issued SFAS No. 144, Accounting for the
Impairment or Disposal of
Long-Lived Assets. This statement requires that long-lived assets that are to be
disposed of by sale be measured at the lower of book value or fair value less
cost to sell. The standard also expanded the scope of discontinued operations to
include all components of an entity with operations that can be distinguished
from the rest of the entity and that will be eliminated from the ongoing
operations of the entity in a disposal transaction. The provisions of this
statement are effective for fiscal years beginning after December 15, 2001. We
are currently evaluating the effects of this pronouncement.

                                        7
<PAGE>

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

     The information contained in Item 2 updates, and you should read it in
conjunction with, information disclosed in Part II, Items 7, 7A, and 8, in our
Annual Report on Form 10-K for the year ended December 31, 2000, in addition to
the financial statements and notes presented in Item 1, Financial Statements, of
this Quarterly Report on Form 10-Q.

                             RESULTS OF OPERATIONS

     Below are the operating results and an analysis of these results for the
periods ended September 30:

<Table>
<Caption>
                                              QUARTER ENDED         NINE MONTHS ENDED
                                            ------------------      ------------------
                                             2001        2000        2001        2000
                                            ------      ------      ------      ------
                                                          (IN MILLIONS)
<S>                                         <C>         <C>         <C>         <C>
Operating revenues........................  $  124      $  140      $  466      $  456
Operating expenses........................     (80)       (106)       (466)       (303)
Other income, net.........................      (1)          4          12          17
                                            ------      ------      ------      ------
  Earnings before interest, income taxes
     and extraordinary items..............  $   43      $   38      $   12      $  170
                                            ======      ======      ======      ======
Throughput volumes (BBtu/d)(1)............   3,655       3,606       3,831       3,791
                                            ======      ======      ======      ======
</Table>

---------------

(1) BBtu/d means billion British thermal units per day.

     Included in our results of operations for the quarter and nine months ended
September 30, 2001, are merger-related costs associated with El Paso's merger
with Coastal in January 2001 totaling $6 million and $180 million.
Merger-related costs include employee severance, retention and transition costs;
charges to relocate our headquarters to Houston, Texas; lease related charges;
and other merger costs.

  Third Quarter 2001 Compared to Third Quarter 2000

     Operating revenues for the quarter ended September 30, 2001, were $16
million lower than the same period in 2000. The decrease was due to lower sales
of excess natural gas and lower realized prices on sales of natural gas
purchased from the Dakota gasification facility in 2001.

     Operating expenses for the quarter ended September 30, 2001, were $26
million lower than the same period in 2000. The decrease was due to lower
operating and maintenance expenses as a result of cost efficiencies following El
Paso's merger with Coastal, the impact of lower prices on natural gas purchased
from the Dakota gasification facility in 2001 and 2000 accruals for the
replacement of system balancing gas. Also contributing to the decrease were
lower accruals associated with our estimates of environmental remediation
liabilities in 2001. The decrease was partially offset by merger-related costs
discussed above.

  Nine Months Ended 2001 Compared to Nine Months Ended 2000

     Operating revenues for the nine months ended September 30, 2001, were $10
million higher than the same period in 2000. The increase was due to higher
realized prices on sales of natural gas purchased from the Dakota gasification
facility in 2001, sales of excess natural gas in the first nine months of 2001
and higher storage revenues due to new contracts during 2001. Partially
offsetting the increase was the favorable resolution of regulatory issues in
2000.

     Operating expenses for the nine months ended September 30, 2001, were $163
million higher than the same period in 2000. The increase was primarily due to
merger-related costs discussed above and changes in estimates of our
environmental remediation liabilities and the usability of spare parts
inventories. Also contributing to the increase were higher prices on natural gas
purchased from the Dakota gasification facility in 2001. Partially offsetting
the increase were lower operating and maintenance expenses as a result of cost
efficiencies following El Paso's merger with Coastal.

                                        8
<PAGE>

INCOME TAXES

     The income tax expense for the quarter and income tax benefit for the nine
months ended
September 30, 2001, were $12 million and $6 million, resulting in effective tax
rates of 35 percent and 38 percent. The income tax expense for the quarter and
nine months ended September 30, 2000, were $11 million and $53 million,
resulting in effective tax rates of 38 percent and 37 percent. Our effective tax
rates were different than the statutory rate of 35 percent in all periods
primarily due to state income taxes.

OTHER

     We are expanding our pipeline system through the Typhoon project. Typhoon
consists of a 35-mile, 20-inch gas pipeline from the Typhoon platform in Green
Canyon Block 237 in the Gulf of Mexico to our facilities at an existing platform
in Eugene Island Block 371. The project was placed in service in July 2001.
Total year to date expenditures on the project have been $33 million.

                 NEW ACCOUNTING PRONOUNCEMENTS NOT YET ADOPTED

     See Item 1, Financial Statements, Note 7, which is incorporated herein by
reference.

                                        9
<PAGE>

CAUTIONARY STATEMENT FOR PURPOSES OF THE "SAFE HARBOR" PROVISIONS OF THE PRIVATE
                    SECURITIES LITIGATION REFORM ACT OF 1995

     This report contains or incorporates by reference forward-looking
statements within the meaning of the Private Securities Litigation Reform Act of
1995. Where any forward-looking statement includes a statement of the
assumptions or bases underlying the forward-looking statement, we caution that,
while we believe these assumptions or bases to be reasonable and to be made in
good faith, assumed facts or bases almost always vary from the actual results,
and the differences between assumed facts or bases and actual results can be
material, depending upon the circumstances. Where, in any forward-looking
statement, we or our management express an expectation or belief as to future
results, that expectation or belief is expressed in good faith and is believed
to have a reasonable basis. We cannot assure you, however, that the statement of
expectation or belief will result or be achieved or accomplished. The words
"believe," "expect," "estimate," "anticipate" and similar expressions will
generally identify forward-looking statements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     This information updates, and you should read it in conjunction with,
information disclosed in Part II, Item 7A in our Annual Report on Form 10-K for
the year ended December 31, 2000, in addition to the information presented in
Items 1 and 2 of this Quarterly Report on Form 10-Q.

     There are no material changes in our quantitative and qualitative
disclosures about market risks from those reported in our Annual Report on Form
10-K for the year ended December 31, 2000.

                                        10
<PAGE>

                          PART II -- OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

     See Part I, Item 1, Financial Statements, Note 5, which is incorporated
herein by reference.

ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS

     None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

     None.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     None.

ITEM 5. OTHER INFORMATION

     None.

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

     a. Exhibits

        None.

     Undertaking

          We hereby undertake, pursuant to Regulation S-K, Item 601(b),
     paragraph 4(iii), to furnish to the U.S. Securities and Exchange
     Commission, upon request, all constituent instruments defining the rights
     of holders of our long-term debt not filed herewith for the reason that the
     total amount of securities authorized under any of such instruments does
     not exceed 10 percent of our total consolidated assets.

     b. Reports on Form 8-K

          None.

                                        11
<PAGE>

                                   SIGNATURES

     Pursuant to the requirements 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.

                                                    ANR PIPELINE COMPANY

Date: November 9, 2001                              /s/ GREG G. GRUBER
                                              ----------------------------------
                                                        Greg G. Gruber
                                                    Senior Vice President,
                                                 Chief Financial Officer and
                                                           Treasurer
                                                  (Chief Accounting Officer)

                                        12