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

                                    FORM 10-K

(Mark  One)
    [X]       ANNUAL  REPORT  PURSUANT  TO SECTION 13 OR 15(d) OF THE SECURITIES
              EXCHANGE  ACT  OF  1934
              FOR  THE  FISCAL YEAR ENDED DECEMBER 31, 2001

    [ ]       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 001-15565

                               SEMCO ENERGY, INC.
             (Exact name of registrant as specified in its charter)

               MICHIGAN                             38-2144267
     (State  of  incorporation)                 (I.R.S.  Employer
                                               Identification  No.)

  28470 13 MILE ROAD, SUITE 300, FARMINGTON HILLS, MICHIGAN         48334
         (Address  of  principal  executive  offices)            (Zip  Code)

                                  248-702-6000
            (Registrant's  telephone  number,  including  area  code)

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



                                                Name  of  each  exchange  on
     Title  of  each  class                          which  registered
     -------------------------------------      ----------------------------
                                             
     COMMON  STOCK,  $1  PAR  VALUE             NEW  YORK  STOCK  EXCHANGE
     FELINE  PRIDES                             NEW  YORK  STOCK  EXCHANGE
     10 1/4%  TRUST  PREFERRED  SECURITIES      NEW  YORK  STOCK  EXCHANGE



Securities  registered  pursuant  to  Section  12(g)  of  the  Act:  None

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.  [ ]

The  aggregate  market  value  of  the  Registrant's  Common  Stock  held  by
non-affiliates  as  of  February  28,  2002 was $122,563,840 based on 16,298,383
shares  held  by  non-affiliates and the closing price of $7.52 on that day (New
York  Stock  Exchange).

Number of outstanding shares of the Registrant's Common Stock as of February 28,
2002:  18,360,467

                      DOCUMENTS INCORPORATED BY REFERENCE:

Portions  of  Registrant's  definitive  Proxy  Statement  (filed  pursuant  to
Regulation  14A)  with respect to Registrant's  April 16, 2002 Annual Meeting of
Common  Shareholders are incorporated by reference in Part III.  Portions of the
Registrant's  2001  Annual  Report  to Shareholders (filed as Exhibit 13 to this
Form  10-K)  are  incorporated by reference in Part I, Item 1 and Part II, Items
5,6,  7,  7A  and  8.




                         T A B L E  O F  C O N T E N T S

                                                                           PAGE
CONTENTS                                                                  NUMBER

                                                                       
KEY  TO  ABBREVIATED  TERMS . . . . . . . . . . . . . . . . . . . . . .      1

INFORMATION  ABOUT  FORWARD-LOOKING  STATEMENTS . . . . . . . . . . . .      2

PART  I

ITEM     1.     BUSINESS. . . . . . . . . . . . . . . . . . . . . . . .      2

ITEM     2.     PROPERTIES. . . . . . . . . . . . . . . . . . . . . . .      8

ITEM     3.     LEGAL  PROCEEDINGS. . . . . . . . . . . . . . . . . . .      9

ITEM     4.     SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS . .      9

PART  II

ITEM     5.     MARKET  FOR  THE  REGISTRANT'S  COMMON  EQUITY  AND
                RELATED  STOCKHOLDER  MATTERS . . . . . . . . . . . . .     10

ITEM     6.     SELECTED  FINANCIAL  DATA . . . . . . . . . . . . . . .     10

ITEM     7.     MANAGEMENT'S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL
                CONDITION  AND  RESULTS  OF  OPERATIONS . . . . . . . .     10

ITEM     7A.    QUANTITATIVE  AND  QUALITATIVE  DISCLOSURES  ABOUT
                MARKET  RISKS . . . . . . . . . . . . . . . . . . . . .     11

ITEM     8.     FINANCIAL  STATEMENTS  AND  SUPPLEMENTARY  DATA . . . .     11

ITEM     9.     CHANGES  IN  AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON
                ACCOUNTING  AND  FINANCIAL  DISCLOSURE. . . . . . . . .     11

PART  III

ITEM    10.     DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT. . .     11

ITEM    11.     EXECUTIVE  COMPENSATION . . . . . . . . . . . . . . . .     11

ITEM    12.     SECURITY  OWNERSHIP  OF  CERTAIN  BENEFICIAL  OWNERS
                AND  MANAGEMENT . . . . . . . . . . . . . . . . . . . .     11

ITEM    13.     CERTAIN  RELATIONSHIPS  AND  RELATED  TRANSACTIONS. . .     12

PART  IV

ITEM    14.     EXHIBITS,  FINANCIAL  STATEMENT  SCHEDULES,  AND  REPORTS
                ON  FORM  8-K . . . . . . . . . . . . . . . . . . . . .     12

SIGNATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     17






KEY  TO  ABBREVIATED  TERMS



                 
AMR. . . . . . . .  (Automated  Meter  Reading)  a  meter  reading  system  that
                    Employs radio waves to collect natural gas consumption data
APB. . . . . . . .  Accounting  Principles  Board
ATS. . . . . . . .  (Aggregated  Transportation  Service)  a program that allows
                    commercial  and  industrial  gas  distribution  customers in
                    Michigan  to  purchase  their  gas  from  third-party  gas
                    suppliers, with the Company transporting the gas
Bcf. . . . . . . .  A  quantity of natural gas volumes equivalent to one billion
                    cubic  feet
CCBC . . . . . . .  City  Commission  of  Battle  Creek,  Michigan
Degree Day . . . .  A  measure of coldness computed by the number of degrees the
                    average  daily temperature falls below 65 degrees Fahrenheit
DRIP . . . . . . .  Direct  Stock  Purchase  and  Dividend  Reinvestment  Plan
Dth. . . . . . . .  (Dekatherm)  a  quantity  of  heat  energy equivalent to one
                    Million  Britsh  Thermal  Units  (BTU)
FASB . . . . . . .  Financial  Accounting  Standards  Board
FERC . . . . . . .  Federal  Energy  Regulatory  Commission
FOS. . . . . . . .  (Field  Order  System) a computerized dispatching system for
                    Field  service  calls
GCA. . . . . . . .  (Gas  Cost  Adjustment)  a  process  by  which  the  Gas
                    Distribution  business,  through annual gas cost proceedings
                    before  the RCA, can recover the prudent and reasonable cost
                    of  gas  sold
GCR. . . . . . . .  (Gas  Cost  Recovery)  a  process  by  which  the  Gas
                    Distribution  Business,  through annual gas cost proceedings
                    before  the  MPSC  or  CCBC,  can  recover  the  prudent and
                    reasonable  cost  of  gas  sold
Mcf. . . . . . . .  A quantity of natural gas volumes equivalent to one thousand
                    cubic  feet
MMcf . . . . . . .  A  quantity of natural gas volumes equivalent to one million
                    cubic  feet
MPSC . . . . . . .  Michigan  Public  Service  Commission
RCA. . . . . . . .  Regulatory  Commission  of  Alaska
SFAS . . . . . . .  Statement  of  Financial  Accounting  Standards
Tcf. . . . . . . .  A quantity of natural gas volumes equivalent to one trillion
                    cubic  feet.


                                      - 1 -

INFORMATION  ABOUT  FORWARD-LOOKING  STATEMENTS

This  document  contains  forward-looking  statements  within the meaning of the
Private  Securities  Litigation  Reform  Act  of  1995 that are based on current
expectations,  estimates  and  projections  of  SEMCO  Energy,  Inc.  and  its
subsidiaries  ("the  "Company").  Statements  that  are  not  historical  facts,
including  statements  about  the  Company's outlook, beliefs, plans, goals, and
expectations,  are  forward-looking statements.  These statements are subject to
potential  risks  and  uncertainties  and,  therefore, actual results may differ
materially.  The  Company  undertakes  no  obligation  to  update  publicly  any
forward-looking statements whether as a result of new information, future events
or  otherwise.  Factors  that may impact forward-looking statements include, but
are  not limited to, the following: (i) the effects of weather and other natural
phenomena;  (ii) the economic climate and growth in the geographical areas where
the  Company  does business; (iii) the capital intensive nature of the Company's
business;  (iv) increased competition within the energy industry as well as from
alternative  forms  of energy; (v) the timing and extent of changes in commodity
prices  for natural gas and propane; (vi) the effects of changes in governmental
and  regulatory  policies,  including income taxes, environmental compliance and
authorized  rates;  (vii)  the  Company's ability to bid on and win construction
contracts;  (viii)  the  impact  of  energy prices on the amount of projects and
business  available  to  the  Company's  engineering  services  business  and
construction  services  business;  (ix)  the  nature, availability and projected
profitability  of  potential  investments  available  to  the  Company;  (x) the
Company's ability to remain in compliance with its debt covenants and accomplish
its  financing  objectives  in  a  timely  and cost-effective manner in light of
changing  conditions  in  the  capital  markets;  (xi)  the Company's ability to
operate and integrate acquired businesses in accordance with its plans and (xii)
the  Company's  ability  to  effectively  execute  its  strategic  plan.



                                     PART I


ITEM  1.          BUSINESS

SEMCO  ENERGY,  INC.

SEMCO  Energy,  Inc. is a diversified energy and infrastructure services company
headquartered  in southeastern Michigan.  It was founded in 1950 as Southeastern
Michigan  Gas  Company.  SEMCO Energy, Inc. and its subsidiaries (the "Company")
operate  four  reportable  business  segments:  (1)  gas  distribution;  (2)
construction  services;  (3)  information  technology services; and (4) propane,
pipelines  and  storage.  The  latter  three  segments are sometimes referred to
together  as  the  "diversified  businesses".  Effective  January  1,  2001, the
Company  started  reporting  its information technology business as a reportable
business  segment.  The  Company's  other  business  segments  are currently the
primary  customers  of  the  information  technology  business.  Certain smaller
subsidiaries  or  divisions  of  the Company are not part of the four previously
mentioned  business segments.  Instead, they are included together in a category
the  Company  refers  to  as  "Corporate  and  other".  For  information on what
constitutes  a  business  segment,  refer  to  Note  10  of  the  Notes  to  the
Consolidated  Financial  Statements  on page 57 through 58 of the Company's 2001
Annual  Report  to  Shareholders,  which  information  is incorporated herein by
reference  from  Exhibit  13  to  this Form 10-K.  The Company had approximately
2,154  employees  at  December  31,  2001.
     In  December,  2001,  the  Company's  board  of directors approved plans to
redirect  the  Company's business strategy.  The plans involve the restructuring
of  the  Company's  corporate,  business unit and operational structures and the
divestiture  of  the Company's engineering services business and certain regions
of its construction services business.  As a result of the planned divestitures,
the  Company began accounting for and reporting its engineering services segment
as  a  discontinued  operation  effective  with the fourth quarter of 2001.  For
additional  information  on  the  Company's  strategic redirection plans and the
divestiture  of  its engineering services business refer to Note 14 of the Notes
to  the  Consolidated  Financial  Statements on pages 61 and 62 of the Company's
2001  Annual Report to Shareholders, which information is incorporated herein by
reference  from  Exhibit  13  to  this  Form  10-K.

                                      - 2 -

GAS  DISTRIBUTION

The  Company's  gas  distribution  business  segment  consists  of operations in
Michigan  and  Alaska.  ENSTAR,  the  Alaska-based  operation,  was  acquired on
November  1,  1999.  The  acquisition  of ENSTAR was accounted for as a purchase
and,  therefore,  the  consolidated  financial  statements  and  the table below
include  the  results  of  ENSTAR's  operations  since  November  1,  1999.
     The Michigan gas distribution operation and ENSTAR are referred to together
as the "Gas Distribution Business".  The Michigan gas distribution operation and
ENSTAR  Natural  Gas  Company  operate as divisions of SEMCO Energy, Inc.  SEMCO
Energy Gas Company, which had conducted the Michigan gas distribution operation,
was  merged  into  SEMCO  Energy,  Inc.  on  December 31, 1999.  Alaska Pipeline
Company operates as a subsidiary of SEMCO Energy, Inc. and as part of the ENSTAR
operations.
     The  Gas  Distribution  Business  distributes and transports natural gas to
residential,  commercial  and  industrial customers and is the Company's largest
business  segment.  Set forth in the table below is gas sales and transportation
information  for  the  past  three  years:





Years ended December 31,                     2001      2000      1999
- -----------------------------------------  --------  --------  --------
                                                      

GAS SALES REVENUE (IN THOUSANDS):
  Residential . . . . . . . . . . . . . .  $201,754  $190,221  $137,407
  Commercial. . . . . . . . . . . . . . .    73,831    62,354    38,451
  Industrial. . . . . . . . . . . . . . .    19,812    18,412     6,763
                                           --------  --------  --------
    Total gas sales revenue (a) . . . . .  $295,397  $270,987  $182,621
                                           ========  ========  ========

GAS TRANSPORTATION REVENUE (IN THOUSANDS)  $ 25,888  $ 30,783  $ 22,369
                                           ========  ========  ========

VOLUMES OF GAS SOLD (MMCF):
  Residential . . . . . . . . . . . . . .    41,529    41,397    28,583
  Commercial. . . . . . . . . . . . . . .    16,032    14,591     8,882
  Industrial. . . . . . . . . . . . . . .     5,566     5,066     1,780
                                           --------  --------  --------
    Total volumes of gas sold (a) . . . .    63,127    61,054    39,245

VOLUMES OF GAS TRANSPORTED (MMCF) . . . .    42,992    48,706    32,417
                                           --------  --------  --------
TOTAL VOLUMES DELIVERED (a) . . . . . . .   106,119   109,760    71,662
                                           ========  ========  ========

<FN>
(a)  Does  not include the sale of excess inventory gas to a third party in 2000
and  1999.


     Refer  to  Note 10 of the Notes to the Consolidated Financial Statements on
pages  57  and  58  of  the  Company's 2001 Annual Report to Shareholders, which
information  is  incorporated  herein  by reference from Exhibit 13 to this Form
10-K,  for  the operating revenues, operating income, assets and other financial
information  of  the  Gas  Distribution  Business  for  the  past  three  years.

GAS  SALES  Gas  sales  revenue  is  generated  primarily  through  the sale and
delivery  of  natural  gas  to  residential  and  commercial  customers.  These
customers  use  natural  gas  mainly  for space heating purposes.  Consequently,
weather  has a significant impact on sales.  Given the impact of weather on this
business  segment,  most  of  its  gas  sales revenue is earned in the first and
fourth  quarters  of  the  calendar year.  Revenues from gas sales accounted for
66%,  67%  and  52%  of  consolidated operating revenues in 2001, 2000 and 1999,
respectively.  If  operating  revenues  from  the  Company's  energy  marketing
business,  which  was  sold effective March 31, 1999, are excluded, gas sales by
the  Gas  Distribution  Business  would  have  accounted for 70% of consolidated
operating  revenues  for  1999.
     Competition  in the gas sales market arises from alternative energy sources
such  as  electricity,  propane and oil.  However, this competition is inhibited
because of the time, inconvenience and investment for residential and commercial
customers to convert to an alternate energy source when the price of natural gas
fluctuates.  For  more  information  on  competition  for  the  Gas Distribution
Business, refer to the section titled "Outlook for Gas Distribution" on pages 22
through  24  of  the  Company's  2001  Annual  Report  to  Shareholders,  which
information  is  incorporated  herein  by reference from Exhibit 13 to this Form
10-K.
     The  Company's  aggregated  transportation  service  ("ATS") program, which
became  effective April 1, 1998, provides all Michigan commercial and industrial
customers  the  opportunity  to  purchase their gas from a third-party supplier,
while  allowing  the Gas Distribution Business to continue charging the existing
distribution fees and customer fees plus a gas load balancing fee.  Refer to the
sections  titled "Gas Sales Margin" and "Gas Transportation Revenue" on pages 20
and 21 of the Company's 2001 Annual Report to Shareholders, which information is
incorporated  herein by reference from Exhibit 13 to this Form 10-K, for further
information  regarding  the  impact  of  the  ATS  program  on  gas  sales  and
transportation  revenue.

                                      - 3 -

TRANSPORTATION  The  Gas  Distribution Business provides transportation services
to  its  large-volume  commercial and industrial customers.  This service offers
those  customers the option of purchasing natural gas directly from producers or
marketing  companies  and  utilizing the Gas Distribution Business' distribution
network  to  transport  the  gas  to  their  facilities.
     Alaska  Pipeline  Company  ("APC")  owns  and operates the only natural gas
transmission  lines  in its service area that are operated for utility purposes.
APC's  transmission  system  delivers  natural  gas  from  producing  fields  in
southcentral  Alaska to ENSTAR's Anchorage-based gas distribution system.  APC's
only  customer  is  ENSTAR  Natural  Gas  Company.
     The market price of alternate energy sources such as coal, electricity, oil
and  steam  is  the  primary  competitive  factor  affecting  the  demand  for
transportation.  Certain large industrial customers have some ability to convert
to  another  form of energy if the price of natural gas increases significantly.
Partially offsetting the impact of price sensitivity has been the use of natural
gas  as  an  industrial  fuel because of clean air legislation and the resultant
pressures  on  industry  and  electric  utilities to reduce emissions from their
plants.  For  more  information  regarding  the  impact  of  alternative  energy
sources, refer to the "Outlook for Gas Distribution" section on pages 22 through
24  of  the  Company's  2001 Annual Report to Shareholders, which information is
incorporated  herein  by  reference  from  Exhibit  13  to  this  Form  10-K.
     As  is  the  case  with  many  gas  distribution  utilities, there has been
downward  pressure  on  transportation  rates  due  to  the  potential  risk for
industrial  customers  and electric generating plants located in close proximity
to  interstate  natural gas pipelines to bypass the Company and connect directly
to  such pipelines.  However, management is currently unaware of any significant
bypass  efforts by the Company's customers.  The Company has addressed and would
continue  to  address  any  such  efforts  by offering special services and rate
arrangements  designed  to  retain  these  customers  on  the  Company's system.
Customers  in  ENSTAR's service territory are currently precluded from bypassing
ENSTAR's  transportation and distribution system due to the limited availability
of gas transmission systems and the large distances between producing fields and
the  locations  of  current  customers.

CUSTOMER BASE  At December 31, 2001, the Michigan gas distribution operation had
approximately  267,000  customers.  The  largest  concentration  of  customers,
approximately  110,000,  is  located  in  southeastern  Michigan.  The remaining
Michigan  customers  are located in and around the following communities: Battle
Creek,  Albion,  Holland,  Three  Rivers,  Niles,  Marquette  and Houghton.  The
Michigan  customer  base  is  diverse  and  includes residential, commercial and
industrial  customers.  The  largest  customers  include  power  plants,  food
production  facilities,  paper  processing  plants,  furniture manufacturers and
others  in  a  variety  of other industries.  The average number of customers in
Michigan  has  increased by an average of approximately 2.7% annually during the
past  three  years.  By  contrast,  the  customer  growth  rate for the U.S. gas
distribution  industry  has averaged approximately 1.8% annually during the past
ten  years.  However,  average annual gas usage per customer has been decreasing
slightly  because  new  homes  and  appliances  are  much more energy efficient.
     At  December  31,  2001,  ENSTAR had approximately 108,000 customers in and
around  the  Anchorage,  Alaska area including the communities of Big Lake, Bird
Creek,  Butte,  Chugiak, Eagle River, Eklutna, Girdwood, Houston, Indian, Kenai,
Knik,  Nikiski,  Palmer,  Peters Creek, Portage, Sterling, Soldotna, Wasilla and
Whittier.  ENSTAR  is  the  sole  distributor  of  natural  gas  to  the greater
Anchorage  metropolitan area, and its service area encompasses approximately 50%
of  the  population of Alaska.  ENSTAR has two types of customers: gas sales and
transportation.  Gas  sales  customers are primarily residential and commercial.
ENSTAR  provides  transportation  service,  on  behalf  of gas producers and gas
marketers,  to  power  plant  sites,  a  liquified natural gas plant, an ammonia
plant, and hundreds of commercial locations.  The average number of customers at
ENSTAR  has  increased  by  an average of approximately 2.8% annually during the
past  three  years.

                                      - 4 -

GAS  SUPPLY  The  Gas Distribution Business has entered into new agreements with
BP Gas and Power ("BP") for the three-year period beginning April 1, 2002, under
which  BP  provides  the  Company's  natural  gas  requirements  and manages the
Company's  natural  gas  supply  and  the  supply  aspects of transportation and
storage  operations  in  Michigan.  For  additional  information  about  these
agreements and the agreements they will replace, refer to Note 2 of the Notes to
the  Consolidated  Financial  Statements on pages 43 through 46 of the Company's
2001  Annual Report to Shareholders, which information is incorporated herein by
reference from Exhibit 13 to this Form 10-K.  The Gas Distribution Business owns
underground  storage  facilities  in  Michigan  with  a  working capacity of 4.8
billion  cubic  feet  ("Bcf").  In  addition,  it leases 6.5 Bcf of storage from
Eaton  Rapids  Gas  Storage  System and 2.5 Bcf from non-affiliates in Michigan.
The  owned and leased storage capacity equals approximately 35% of the Company's
2001  annual  gas  sales  volumes  in  Michigan.  SEMCO  Gas Storage Company (an
affiliated  company)  is  a  50%  owner  of  Eaton  Rapids  Gas  Storage System.
     ENSTAR  has a gas purchase contract (the "Marathon Contract") with Marathon
Oil  Company ("Marathon") that has been approved by the Regulatory Commission of
Alaska  ("RCA")  and  is  a  "requirements"  contract  with  no  specified daily
deliverability  or annual take-or-pay quantities.  Through 2001, Marathon agreed
to  deliver  all of ENSTAR's gas requirements in excess of those provided for in
other  gas  supply  contracts in existence as of May 1, 1988, subject to certain
exceptions,  until  the  commitment  has  been  exhausted.  Beginning  in  2002,
ENSTAR's  purchase  obligations  and  Marathon's delivery obligations are set at
specified annual amounts (21 Bcf in 2002).  The contract has a base price and is
subject  to an annual adjustment based on changes in the price of certain traded
oil  futures  contracts  plus  reimbursement  for  any severance taxes and other
charges.
     ENSTAR also has an RCA-approved gas purchase contract with the Municipality
of Anchorage, Chevron U.S.A., Inc. and ARCO Alaska, Inc. (the "Beluga Contract")
which  provides  for  the delivery of up to approximately 220 Bcf of gas through
the  year  2009  from  the  Beluga  field.  The  pricing mechanism in the Beluga
Contract  is  similar  to  that  contained  in  the  Marathon  Contract.
     In  May  2000,  ENSTAR signed a gas supply contract with Anadarko Petroleum
and  Phillips  Alaska (formerly ARCO Alaska) for natural gas deliveries from the
Moquawkie gas field beginning in 2002 ("the Moquawkie Contract").  The agreement
provides  that  Anadarko  and  Phillips  will  supply ENSTAR's additional supply
requirements  through 2003, and supply a portion of ENSTAR's needs through 2016.
The  contract  has  a base price, subject to annual adjustment based upon 50% of
the  change  in  certain inflation measures, of $2.75 per MCF plus reimbursement
for any severance taxes and other charges.  The contract was approved by the RCA
in  July  2000.
     In  November  2000,  ENSTAR  signed  a  gas  supply contract with Union Oil
Company  of  California ("Unocal") for natural gas deliveries beginning in 2004.
The  agreement  provides  that  Unocal  will  supply  ENSTAR's additional supply
requirements  through  2005,  and  supply  all or a portion of ENSTAR's needs in
years  beyond 2005 based upon additional commitments that may be made by Unocal.
Gas  supplied under the contract will be priced annually according to a 36-month
daily  average price of certain traded natural gas futures contracts, subject to
a  floor  price provision that is similar to the price of the Moquawkie contract
described  above.  The  contract also provides for reimbursement to the producer
of  severance  taxes  and  certain  transportation costs.  The contract received
final  approval  by  the  RCA  in  January  2002.
     Based  on  gas  purchases during the twelve months ended December 31, 2001,
which  are  not  necessarily  indicative  of the volume of future purchases, gas
reserves  committed  to  ENSTAR under the Marathon, Beluga, Moquawkie and Unocal
Contracts  are  sufficient  to  supply  all  of  ENSTAR's  expected  gas  supply
requirements  through  the  year  2004.  After  that time supplies will still be
available  under  these contracts in accordance with their terms, but at least a
portion  of ENSTAR's requirements are expected to be satisfied outside the terms
of  these  contracts,  as  currently  in  effect.
     ENSTAR's  gas  supply  source,  primarily  though  the  Marathon,  Beluga,
Moquawkie  and  Unocal  Contracts,  is  confined  to the Cook Inlet area with no
direct  access  to other natural gas pipelines.  However, the Cook Inlet area is
home  to  major  gas  producing  fields,  with  proven and producing reserves of
approximately  2.1  trillion  cubic  feet  ("Tcf").  An  additional  2.3  Tcf of
undiscovered  gas in the Cook Inlet area has been estimated by the United States
Geological  Survey  and  Minerals  Management  Service.
     The  Michigan-based  gas  distribution  operation  is  served by four major
interstate  pipelines:  (1)  Panhandle  Eastern  Pipe Line Company; (2) Northern
Natural  Gas  Company;  (3)  Great  Lakes  Gas  Transmission Company and (4) ANR
Pipeline  Company.

                                      - 5 -

RATES  AND  REGULATION  The  gas  distribution  customers located in the City of
Battle  Creek,  Michigan  and  surrounding  communities  are  subject  to  the
jurisdiction  of  the  City  Commission  of Battle Creek ("CCBC").  The Michigan
Public  Service Commission ("MPSC") has jurisdiction over the remaining Michigan
customers.  ENSTAR is subject to regulation by the RCA.  These regulatory bodies
have  jurisdiction  over,  among other things, rates, accounting procedures, and
standards  of  service.
     For  information  on regulatory matters including recent regulatory orders,
filings  and  rate  cases,  refer  to  Note  2  of the Notes to the Consolidated
Financial  Statements on pages 43 through 46 of the Company's 2001 Annual Report
to  Shareholders,  which  information  is  incorporated herein by reference from
Exhibit  13  to  this  Form  10-K.  As  of  the date of filing of this Form 10-K
report,  ENSTAR  has  not received a final order on its rate case but expects to
receive  it  during  the  first  half  of  2002.

ENVIRONMENTAL  MATTERS  The  Gas  Distribution  Business  currently  owns  seven
Michigan  sites  which  formerly housed manufactured gas plants.  In the earlier
part  of  the 20th century, gas was manufactured from processes using coal, coke
or  oil.  By-products  of  this  process  have  left some contamination at these
sites.  The  Gas  Distribution  Business is in compliance with State of Michigan
rules  which require companies to take "due care" steps to insure that the sites
are  safe.  The  Gas Distribution Business has closed one site with the approval
of  the  appropriate  regulatory  authority  in  the  State  of Michigan and has
developed plans to conduct field investigations at two other sites.  For further
information,  refer  to  Note  13  of  the  Notes  to the Consolidated Financial
Statements  on  pages  60  and  61  of  the  Company's  2001  Annual  Report  to
Shareholders, which information is incorporated herein by reference from Exhibit
13  to  this  Form  10-K.


DIVERSIFIED  BUSINESSES

The  Company's  diversified  businesses  have  grown during the past three years
primarily  through  the  acquisition  of  construction services businesses.  The
following table shows operating revenues for each of the diversified businesses,
including  intercompany  revenues,  for  1999  through  2001:






Years Ended December 31,            2001      2000     1999
- --------------------------------  --------  --------  -------
                                         (in thousands)
                                             
Operating Revenues
Construction Services. . . . . .  $126,205  $105,231  $58,272
Information technology services.    10,275     5,184        -
Propane, Pipelines and Storage .     7,443     6,949    6,284

<FN>
The  amounts  in  the  above  table  include  intercompany  transactions.


     As  previously  discussed, the Company began accounting for its engineering
services  segment  as a discontinued operation effective with the fourth quarter
of  2001.  Accordingly,  its  operating  results  are segregated and reported as
discontinued  operations  in  the  Consolidated Statements of Income, with prior
years  restated.  Refer  to  Note  10 of the Notes to the Consolidated Financial
Statements  on  pages  57  and  58  of  the  Company's  2001  Annual  Report  to
Shareholders, which information is incorporated herein by reference from Exhibit
13  to this Form 10-K, for each of the diversified business' operating revenues,
operating  income,  assets  and  other  financial information for the past three
years.


CONSTRUCTION  SERVICES

The  Company's  construction services segment ("Construction Services") operates
in the mid-western, southern and southeastern areas of the United States and has
offices  in  Florida,  Georgia, Illinois, Iowa, Kansas, Michigan and Texas.  Its
primary service is the installation of underground natural gas mains and service
lines.  Construction Services also provides underground construction services to
the  telecommunications  and  water supply industries.  As of December 31, 2001,
Construction  Services  was  comprised  of  six companies that were all acquired
since  mid-1997:  (1)  Sub-Surface Construction Co.; (2) K&B Construction, Inc.;
(3)  Iowa  Pipeline  Associates,  Inc.;  (4)  Flint Construction Co.; (5) Long's
Underground  Technologies,  Inc.; and (6) KLP Construction Co.  The construction
businesses  are  organized  as  subsidiaries  of  NATCOMM,  Inc.,  a  first-tier
subsidiary  of  the  Company.  There  is  additional information regarding these
acquisitions  in Note 3 of the Notes to the Consolidated Financial Statements on
pages  46  and  47  of  the  Company's 2001 Annual Report to Shareholders, which
information  is  incorporated  herein  by reference from Exhibit 13 to this Form
10-K.

                                      - 6 -

     Construction  Services  had  operating  revenues,  excluding  intercompany
transactions,  of  $113.2 million, $95.5 million and $50.0 million in 2001, 2000
and  1999,  respectively.  These operating revenues accounted for 25% and 23% of
consolidated  operating  revenues  in  2001  and  2000, respectively, and 18% of
consolidated  operating revenues, excluding energy marketing operating revenues,
during  1999.  Construction  Services'  business is seasonal in nature.  Most of
the  profits  from  this  segment  are  made  during the summer and fall months.
Construction  Services  generally  incurs  losses  during the winter months when
underground  construction  is  inhibited  by  weather.
     Construction  Services  competes  with  small  and  medium-sized  regional
underground  facilities  contractors  as  well  as in-house utility construction
operations.  The  natural  gas  construction services industry is comprised of a
highly  fragmented  group  of  companies  focused primarily on regional or local
markets.  For  more information on competition for Construction Services and the
company's  goals  and  expectations  for  this  business  under  its  redirected
strategy,  refer  to  the  section titled "Outlook for Construction Services" on
pages  25  and  26  of  the  Company's 2001 Annual Report to Shareholders, which
information  is  incorporated  herein  by reference from Exhibit 13 to this Form
10-K.


INFORMATION  TECHNOLOGY  SERVICES

2001  is the first year that the Company is reporting its information technology
("IT")  services  business as a separate business segment.  This business, under
the Aretech Information Services name ("Aretech") began operations in April 2000
and  provides IT infrastructure outsourcing services, and other IT services with
a focus on mid-range computers, particularly the IBM I-Series (AS-400) platform.
The Company's other business segments currently account for approximately 90% of
IT  services revenue.  However, the Company believes there is a growing trend by
small  to  mid-sized  companies  to  outsource  certain  information  technology
functions.  The  Company  also  believes  the  trend  towards  outsourcing large
mainframe computers is now moving to include mid-range computers.  The Company's
goal is to capitalize on its internal expertise in this area and position itself
to take advantage of these trends.  Aretech's business strategy is focused on IT
infrastructure  outsourcing  services  and  business-to-consumer  and
business-to-business  internet  commerce.
     Aretech competes with businesses that range from small local firms to large
international  companies,  as  well  as the in-house IT departments of potential
customers.  Aretech  is  an early provider in the mid-range computer outsourcing
market  and, as the market expands, it is likely that new competition will arise
from  other  firms  that  possess  the  necessary  technical  skills.


PROPANE,  PIPELINES  AND  STORAGE

The  Company's  pipelines and storage business consists of three pipelines and a
gas  storage  facility, all of which are located in Michigan.  The Company has a
partial ownership interest in one of the pipelines and an equity interest in the
gas  storage  facility.  Refer  to  Item  2  of  this  Form  10-K for additional
information  on  each  pipeline  and  storage  facility such as its location and
customers.  The  Company  also  owns  a  propane distribution business (known as
"Hotflame").  Hotflame  supplies more than 4 million gallons of propane annually
to  retail  customers  in  Michigan's  upper  peninsula and northeast Wisconsin.
Because  propane  is  used principally for heating, most of the operating income
for  the  propane  business is generated in the first and fourth quarters of the
calendar  year.
     Propane  is  transported  easily in pressurized containers and is generally
the  fuel  used  in  rural  areas  where  natural gas pipelines and distribution
systems  do not exist or are not economical to build.  The Company purchases the
majority  of  its propane from BP Canada Energy Marketing Corp. (formerly "Amoco
Canada  Marketing  Corporation").  The  propane  operation  competes  with other
energy  sources  such  as  natural gas, fuel oil, electricity and other regional
propane providers.  The basis of the competition is generally price and service.
The  propane  business  has become increasingly competitive and less profitable.
The  Company  will  continue to assess the strategic fit of the propane business
over  the  coming  years.

                                      - 7 -

ITEM  2.          PROPERTIES


GAS  DISTRIBUTION

The  gas  delivery  system  of  the Michigan gas distribution operation included
approximately  160  miles  of  gas transmission pipelines and 5,363 miles of gas
distribution  pipelines  at  December  31,  2001.  The  pipelines  are  located
throughout  the southern half of Michigan's lower peninsula (centered around the
cities  of Port Huron, Albion, Battle Creek and Holland) and also in the central
and western areas of Michigan's upper peninsula.  At December 31, 2001, ENSTAR's
gas  delivery  system  included  approximately  396  miles  of  gas transmission
pipelines and 2,352 miles of gas distribution pipelines.  ENSTAR's pipelines are
located in Anchorage and other communities around the Cook Inlet area of Alaska.
     The  distribution system and service lines of the Gas Distribution Business
are, for the most part, located on or under public streets, alleys, highways and
other  public  places,  or  on  private  property  not owned by the Company with
permission  or  consent,  except to an inconsequential extent, of the individual
owners.  The  distribution  systems and service lines located on or under public
streets, alleys, highways and other public places were all installed under valid
rights  and  consents  granted  by  appropriate  local  authorities.
     The  Gas  Distribution  Business owns underground gas storage facilities in
eight  depleted  salt  caverns  and  three  depleted  gas  fields, together with
measuring,  compressor  and transmission facilities.  The storage facilities are
all  located  in Michigan.  The aggregate working capacity of the storage system
is  approximately  4.8  Bcf.
     The  Gas  Distribution  Business  also  owns  meters and service lines, gas
regulating  and  metering  stations,  garages,  warehouses  and  other buildings
necessary  and  useful in conducting its business.  It also leases a significant
portion  of  its  computer  and  transportation  equipment.


CONSTRUCTION  SERVICES

The  tangible properties of Construction Services include equipment required for
the  installation,  repair  or  replacement  of underground pipelines or similar
items.  This  includes  primarily  equipment  necessary  for  excavation such as
backhoes,  trenchers, directional drills and dump trucks.  This equipment can be
driven  or  carried on trailers from one worksite to another.  Substantially all
of Construction Services' equipment at December 31, 2001 was located in Florida,
Georgia,  Illinois,  Iowa,  Kansas,  Michigan,  Tennessee  and  Texas.


INFORMATION  TECHNOLOGY  SERVICES

The  properties  of  this  business  segment  consist of leasehold improvements,
office  equipment,  telecommunications  equipment and computer equipment.  These
properties are located in an office building located in Marysville, Michigan and
an  office  building  leased  in  St.  Clair,  Michigan.


PROPANE,  PIPELINES  AND  STORAGE

The  principal  properties  of  this  business  segment  include  interests  and
operations  in propane distribution, natural gas transmission and an underground
gas  storage  system.
     The  Company  owns  a  50%  equity interest in the Eaton Rapids Gas Storage
System  ("ERGSS").  The  Company's  equity  investment in the ERGSS totaled $4.1
million at December 31, 2001.  This system, located near Eaton Rapids, Michigan,
became  operational  in  March  1990  and  consists of approximately 12.8 Bcf of
underground  storage  capacity.  The Gas Distribution Business leases 6.5 Bcf of
the  capacity.
     The  property  of  the propane distribution operation consists primarily of
pressurized  propane  storage tanks used by customers to store propane purchased
from  the  Company  and  trucks for transporting propane.  The Company also owns
large  propane  storage  tanks  that  allow  the  Company to store up to 258,000
gallons  of propane inventory.  The propane distribution property is all located
in  Michigan's  upper  peninsula  and  northeast  Wisconsin.

                                      - 8 -

     The  following table sets forth the pipeline operations wholly or partially
owned  by  the  Company,  the  total  net property of the project, the Company's
ownership  percentage  and  net  property  at  December  31,  2001:





                               Total         The Company's     The Company's
                           Net Property    Percent Ownership    Net Property
                           -------------  -------------------  --------------
                                       (in thousands of dollars)
                                                      
Litchfield Lateral. . . .  $       9,087                  33%  $        3,029
Greenwood Pipeline. . . .          6,051                 100%           6,051
Eaton Rapids Pipeline . .            671                 100%             671
                           -------------                       --------------
                           $      15,809                       $       9,751
                           =============                       ==============


     The Litchfield Lateral is a 31-mile pipeline located in southwest Michigan.
The line, which is leased entirely to ANR Pipeline Company, links the ERGSS with
interstate  pipeline  supplies.  The Litchfield Lateral began operations in July
1992.
     The Greenwood Pipeline, an 18.5-mile pipeline constructed in 1991, connects
an  interstate  pipeline  with  the Detroit Edison Greenwood Power Plant located
near Port Huron, Michigan.  The pipeline provides transportation services to the
Greenwood  Power  Plant and to the Gas Distribution Business' service area north
of  Port  Huron.  In  1999,  the  pipeline  received  upgrades which allowed the
Company  to  serve  additional peak load generation units at the Greenwood site.
The Greenwood Pipeline has a capacity of 271 million cubic feet (MMcf") per day.
There  is  an  agreement  between the Company and Detroit Edison whereby Detroit
Edison  has contracted for 259 MMcf per day, of this capacity.  The Company also
has  an  agreement with its Gas Distribution Business for the remainder (12 MMcf
per  day)  of  the  pipeline  capacity.
     The  Eaton  Rapids  Pipeline  is  a  37-mile  pipeline that provides direct
delivery  of  gas  from  the  ERGSS to the Gas Distribution Business' systems in
Battle  Creek  and Albion, Michigan.  The original 30-mile line was purchased in
1986.  The  seven-mile  extension  to  the  ERGSS  was  completed  in  1990.


CORPORATE  AND  OTHER

The  properties  of  the  Corporate  and  other  segment  include  leasehold
improvements,  office  furniture,  office  equipment,  computers  and  computer
systems.  These  properties  are  located  in an office building located in Port
Huron,  Michigan  and  an  office building leased in Farmington Hills, Michigan.


ITEM  3.          LEGAL  PROCEEDINGS

None.


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

None.



                                      - 9 -

                                     PART II



ITEM  5.          MARKET  FOR  THE  REGISTRANT'S  COMMON  EQUITY  AND  RELATED
                  STOCKHOLDER  MATTERS

MARKET  INFORMATION  AND  NYSE  LISTING

SEMCO  Energy, Inc. Common Stock began trading on the New York Stock Exchange on
January  6, 2000 under the trading symbol "SEN".  Prior to this date the Company
was  traded on The Nasdaq Stock Market under the symbol "SMGS."  The table below
shows  the  reported  high  and low quotations of the Company's common stock, as
reported  in  the  Wall  Street  Journal.





       2001  Price  Range                  2000  Price  Range
- ----------------------------------  ---------------------------------
2001            High      Low       2000            High      Low
- ----------------------------------  ---------------------------------
                                               
First Quarter.  $15.4375  $13.1875  First Quarter   $     14  $ 10.75
Second Quarter  $  15.95  $  13.61  Second Quarter  $     15  $11.125
Third Quarter.  $  15.75  $  14.05  Third Quarter   $16.9375  $ 12.25
Fourth Quarter  $  14.85  $   9.45  Fourth Quarter  $16.6250  $ 13.75


     See  the  cover  page  of  this  Form 10-K for a recent stock price and the
number  of  shares  outstanding.  The  Company issued unregistered shares of its
common stock in connection with certain acquisition transactions during 2000 and
1999  (for  additional  information,  refer to Notes 3 and 5 of the Notes to the
Consolidated  Financial  Statements  on pages 46 and 47 and pages 49 through 51,
respectively,  of  the  Company's  2001  Annual  Report  to  Shareholders, which
information  is  incorporated  herein  by reference from Exhibit 13 to this Form
10-K).  See  Selected  Financial Data in Item 6 of this Form 10-K for the number
of  registered  common  shareholders  at  year-end for the past five years.  The
Company  had  9,321  registered  common  shareholders  at  February  28,  2002.

DIVIDENDS

For  information  regarding  dividends,  see  Notes 5 and 15 of the Notes to the
Consolidated Financial Statements on pages 49 through 51 and 63 of the Company's
2001  Annual Report to Shareholders, which information is incorporated herein by
reference from Exhibit 13 to this Form 10-K, and Selected Financial Data in Item
6  of  this  Form  10-K.


ITEM  6.          SELECTED  FINANCIAL  DATA
For  the information required pursuant to this item, refer to the section titled
"Selected  Financial  Data" in the Company's 2001 Annual Report to Shareholders,
pages  64  and  65,  which  information is incorporated herein by reference from
Exhibit  13  to  this  Form  10-K.


ITEM 7.          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
                 RESULTS  OF  OPERATIONS

For  the information required pursuant to this item, refer to the section titled
"Management's  Discussion  and  Analysis  of  Financial Condition and Results of
Operations"  in  the  Company's  2001  Annual  Report  to Shareholders, pages 16
through  33,  which information is incorporated herein by reference from Exhibit
13  to  this  Form  10-K.

                                      - 10 -

ITEM  7A.        QUANTITATIVE  AND  QUALITATIVE  DISCLOSURES  ABOUT  MARKET RISK

For  the information required pursuant to this item, refer to the section titled
"Market  Risk  Information"  on  page  32 of the Company's 2001 Annual Report to
Shareholders, which information is incorporated herein by reference from Exhibit
13  to  this  Form  10-K.


ITEM  8.          FINANCIAL  STATEMENTS  AND  SUPPLEMENTARY  DATA

For  the  information  required  pursuant  to  this item, refer to the following
sections  of the Company's 2001 Annual Report to Shareholders, which information
is  incorporated  herein  by  reference  from  Exhibit  13  to  this  Form 10-K:

     Report  of  Independent  Public  Accountants,  page  34
     Consolidated  Statements  of  Income,  page  35
     Consolidated  Statements  of  Financial  Position,  page  36
     Consolidated  Statements  of  Cash  Flow,  page  37
     Consolidated  Statements  of  Capitalization,  page  38
     Consolidated  Statements of Changes in Common Shareholders' Equity, page 39
     Notes  to the Consolidated Financial Statements, pages 40 through 63


ITEM  9.          CHANGES  IN  AND  DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
                  AND  FINANCIAL  DISCLOSURE

None.



                                     PART III


ITEM  10.         DIRECTORS  AND  EXECUTIVE  OFFICERS  OF  THE  REGISTRANT

The  information  appearing  under the captions "Information About Directors and
Executive  Officers" in the Company's definitive Proxy Statement (filed pursuant
to  Regulation  14A) with respect to the Company's April 16, 2002 Annual Meeting
of  Common  Shareholders  is  incorporated  by  reference  herein.


ITEM  11.         EXECUTIVE  COMPENSATION

The  information appearing under the caption "Compensation of Executive Officers
and  Directors"  in  the Company's definitive Proxy Statement (filed pursuant to
Regulation  14A)  with  respect to Registrant's April 16, 2002 Annual Meeting of
Common  Shareholders  is  incorporated  by  reference  herein.  There  are  no
compensation  committee  interlocks  or  insider  participation.


ITEM  12.         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The  information  appearing  under  the  caption  "Stock  Outstanding and Voting
Rights"  in  the  Company's  definitive  Proxy  Statement  (filed  pursuant  to
Regulation  14A)  with respect to the Company's April 16, 2002 Annual Meeting of
Common  Shareholders  is  incorporated  by  reference  herein.


                                      - 11 -

ITEM  13.         CERTAIN  RELATIONSHIPS  AND  RELATED  TRANSACTIONS

The  information appearing under the caption "Employment and Related Agreements"
in  the  Company's definitive Proxy Statement (filed pursuant to Regulation 14A)
with  respect  to  the  Company's  April  16,  2002  Annual  Meeting  of  Common
Shareholders  is  incorporated  by  reference  herein.



                                     PART IV



ITEM  14.         EXHIBITS,  FINANCIAL  STATEMENT SCHEDULES, AND REPORTS ON FORM
                  8-K

(a)  1     All  Financial  Statements.  For  a  list  of  financial  statements
incorporated  by  reference,  see  the  Part  II,  Item  8  of  this  10-K.

(a)  2     Financial  Statement  Schedules.  The  following  additional data and
schedule  should  be  read  in  conjunction  with  the  Consolidated  Financial
Statements  in Part II, item 8 of this 10-K.  Schedules not included herein have
been  omitted  because  they  are  not applicable or the required information is
shown  in  such  financial  statements  or  notes  thereto.





                                                         Pages in 10-K
                                                         -------------
                                                      
    Report of Independent Public Accountants. . . . . .             13

    Schedule II - Consolidated Valuation and Qualifying
    Accounts for the years ended December 31, 2001,
    2000 and 1999 . . . . . . . . . . . . . . . . . . .             14



(a)  3     Exhibits,  including  those  incorporated  by reference are listed on
pages  15  and  16  of  this  10-K.

(b)     Reports  on  Form  8-K.

     The  Company filed the following Form 8-K Reports during the fourth quarter
of  2001:  (1)  report  filed  on  October  23, 2001, to announce that Sebastian
Coppola, Senior Vice President and Chief Financial Officer had left the Company,
and (2) report filed on November 9, 2001 to announce that the Company's Michigan
gas  division  had  withdrawn its request to extend its Customer Choice Program,
which  included  a  frozen  gas  cost.

(c)     The  Exhibits,  if  any,  filed  herewith are identified in Item 14(a) 3
above.

(d)     The  financial statement schedules filed are identified under Item 14(a)
2  above.

                                      - 12 -

REPORT  OF  INDEPENDENT  PUBLIC  ACCOUNTANTS



To  SEMCO  Energy,  Inc.:

We have audited, in accordance with auditing standards generally accepted in the
United  States,  the  consolidated  financial  statements  of SEMCO Energy, Inc.
included in this Form 10-K, and have issued our report thereon dated February 7,
2002.  Our  audit  was  made  for the purpose of forming an opinion on the basic
financial  statements taken as a whole.  The schedule listed in item 14 (a) 2 is
presented  for  purposes  of  complying  with  the  Securities  and  Exchange
Commission's  rules  and  is  not  part  of the basic financial statements.  The
schedule  has  been subjected to the auditing procedures applied in the audit 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.


Arthur  Andersen  LLP

Detroit,  Michigan,
February  7,  2002

                                      - 13 -

SCHEDULE  II





                                        SEMCO ENERGY, INC.

                   SCHEDULE II - CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS
                                      (THOUSANDS OF DOLLARS)



                                                                        DEDUCTIONS
                                                      ADDITIONS FOR    FROM RESERVE
                                            BALANCE     PROVISIONS    FOR PURPOSE FOR    BALANCE
                                           BEGINNING     CHARGED     WHICH THE RESERVE     END
     DESCRIPTION                           OF PERIOD    TO INCOME      WAS PROVIDED     OF PERIOD
- -----------------------------------------  ---------  -------------  -----------------  ---------
                                                                             
YEAR ENDED DECEMBER 31, 2001
- ----------------------------

Allowances for doubtful accounts
  deducted from receivables in the
  Statement of Financial Position. . . . .  $1,436       $1,410             $997         $1,849
                                            ======       ======             ====         ======

Reserves for restructuring costs
  included in current liabilities in the
  Statement of Financial Position. . . . .  $    0       $2,338             $  0         $2,338
                                            ======       ======             ====         ======

Allowances and reserves for
  discontinued operations included
  in current liabilities in the
  Statement of Financial Position. . . . .  $    0       $7,409             $  0         $7,409
                                            ======       ======             ====         ======





YEAR ENDED DECEMBER 31, 2000
- ----------------------------

Allowances for doubtful accounts
  deducted from receivables in the
  Statement of Financial Position. . . . .  $1,080       $1,186             $830         $1,436
                                            ======       ======             ====         ======





YEAR ENDED DECEMBER 31, 1999
- ----------------------------

Allowances for doubtful accounts
  deducted from receivables in the
  Statement of Financial Position. . . . .  $  632       $1,115             $667         $1,080
                                            ======       ======             ====         ======



                                      - 14 -

EXHIBITS,  INCLUDING  THOSE  INCORPORATED  BY  REFERENCE




                                                                           Filed
                                                                     -------------------
Exhibit                                                                           By
  No.                        Description                             Herewith  Reference
- -------  ----------------------------------------------------------  --------  ---------

                                                                         
 3.(i)   Articles of Incorporation of SEMCO Energy, Inc., as
         restated June 25, 1999.(g) . . . . . . . . . . . . . . . .               x
 3.(ii)  Bylaws--last  revised  December  13,  2001 . . . . . . . .    x
 4.1     Note Agreement dated as of June 1, 1994, relating to
         issuance of $80,000,000 of long-term debt.(a). . . . . . .               x
 4.2     Rights Agreement dated as of April 15, 1997 with
         Continental Stock Transfer & Trust Company, as Rights
         Agent.(c). . . . . . . . . . . . . . . . . . . . . . . . .               x
 4.3     Note Agreement dated as of October 1, 1997, relating to
         issuance of $60,000,000 of long-term debt.(e). . . . . . .               x
 4.4     Form of Indenture relating to Senior Debt Securities
         dated as of October 23, 1998, with Bank One Trust Company
         (formerly NBD Bank) as Trustee.(f) . . . . . . . . . . . .               x
 4.5     First Supplemental Indenture relating to Senior Debt
         Securities dated as of June 16, 2000, with Bank One
         Trust Company as Trustee.(i) . . . . . . . . . . . . . . .               x
 4.6     Second Supplemental Indenture relating to Senior Debt
         Securities dated as of June 29, 2000, with Bank One
         Trust Company as Trustee.(i) . . . . . . . . . . . . . . .               x
 4.7     Indenture relating to Subordinated Debentures dated as of
         April 19, 2000, with Bank One Trust Company, Trustee.(j) .               x
 4.8     First Supplemental Indenture relating to Subordinated
         Debentures dated as of April 19, 2000, with Bank One
         Trust Company, as Trustee.(j). . . . . . . . . . . . . . .               x
10       Material  Contracts.
10.1     Short-Term Incentive Plan as amended June 10, 1999.(g) . .               x
10.2     1997 Long-Term Incentive Plan.(b). . . . . . . . . . . . .               x
10.3     Employment Agreement dated October 10, 1996, with
         William L. Johnson.(d) . . . . . . . . . . . . . . . . . .               x
10.4     Amendment (dated August 10, 2001) to Employment
         Agreement with William L. Johnson.(m). . . . . . . . . . .               x
10.5     Executive Security Agreement.(k) . . . . . . . . . . . . .               x
10.6     Split-Dollar Agreement.(k) . . . . . . . . . . . . . . . .               x
10.7     SEMCO Energy, Inc. Deferred Compensation Plan (for
         certain executive and management employees).(h). . . . . .               x
10.8     Form of Change in Control Agreement (for certain
         officers).(j). . . . . . . . . . . . . . . . . . . . . . .               x
10.9     Form of Change of Control Employment Agreement dated
         as of March 1, 2000 (for certain officers).(j) . . . . . .               x
10.10    Executive Security Trust.(k) . . . . . . . . . . . . . . .               x
10.11    Stock Option Plan of 2000.(l). . . . . . . . . . . . . . .               x
10.12    Deferred Compensation and Stock Purchase Plan for
         Non-Employee Directors revised December 13, 2001.. . . . .    x
10.13    Stock Grant Plan for Non-Employee Directors
         adopted August 23, 2001. . . . . . . . . . . . . . . . . .    x
10.14    Employment Agreement dated as of June 1, 2001
         with Marcus Jackson. . . . . . . . . . . . . . . . . . . .    x
10.15    Change of Control Employment Agreement dated as of
         June 1, 2001 with Marcus Jackson.. . . . . . . . . . . . .    x
12       Ratio of Earnings to Fixed Charges.. . . . . . . . . . . .    x
13       SEMCO Energy, Inc. 2001 Annual Report to Shareholders,
         pages 16-65. . . . . . . . . . . . . . . . . . . . . . . .    x
21       Subsidiaries of the Registrant.. . . . . . . . . . . . . .    x
23       Consent of Independent Public Accountants. . . . . . . . .    x
24       Power of Attorney. . . . . . . . . . . . . . . . . . . . .    x
99       Proxy Statement dated March 14, 2002.(n) . . . . . . . . .    x

<FN>
Key  to  Exhibits  Incorporated  by  Reference
(a)     Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended June 30,
        1994,  File  No.  0-8503.
(b)     Filed  March  6,  1997  as  part  of  SEMCO  Energy,  Inc.'s  1997 Proxy
        Statement,  dated  March  7,  1997,  File  No.     0-8503.
(c)     Filed  with  SEMCO  Energy,  Inc.'s  Form 10-K for 1996, dated March 27,
        1997,  File  No.  0-8503.
(d)     Filed  with  SEMCO  Energy, Inc.'s Form 10-Q for the quarter ended March
        31,  1997,  File  No.  0-8503.
(e)     Filed  with  SEMCO  Energy,  Inc.'s  Form  10-Q  for  the  quarter ended
        September  30,  1997,  File  No.  0-8503.
(f)     Filed  with  SEMCO Energy, Inc.'s Registration Statement, Form S-3, Nos.
        333-58715  and  333-58715-01,  filed  July  8,  1998.
(g)     Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended June 30,
        1999,  File  No.  0-8503.
(h)     Filed  with  SEMCO  Energy,  Inc.'s  Form 10-K for 1999, dated March 20,
        2000,  File  No.  001-15565.
(i)     Filed  with  SEMCO Energy, Inc.'s Form 8-K dated July 26, 2000, File No.
        001-15565.
(j)     Filed  with  SEMCO  Energy, Inc.'s Form 10-Q for the quarter ended March
        31,  2000,  File  No.  001-15565.
(k)     Filed  with  SEMCO  Energy,  Inc.'s  Form  10-Q  for  the  quarter ended
        September  30,  2000.
(l)     Filed  with  SEMCO  Energy,  Inc.'s  Form 10-K for 2000, dated March 30,
        2001,  File  No.  001-15565.
(m)     Filed  with  SEMCO  Energy,  Inc.'s  Form  10-Q  for  the  quarter ended
        September  30,  2001,  File  No.  001-15565.
(n)     Filed  March  11, 2002, pursuant to Rule 14a-6 of the Exchange Act, File
        No.  001-15565.


                                  - 15 & 16 -



                                   SIGNATURES

          Pursuant  to the requirements of Section 13 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.

                             SEMCO  ENERGY,  INC.


Date:  March  27,  2002      By  /s/Marcus Jackson
                                 -----------------------------------------------
                                 Marcus Jackson
                                 Chairman, President and Chief Executive Officer

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






  Signature                                        Title                             Date
- -----------------------------  ------------------------------------------------  --------------
                                                                           

/s/Marcus Jackson              Chairman, President and Chief Executive Officer   March 27, 2002
- -----------------------------
  Marcus Jackson                    (Director)


/s/John E. Schneider           Senior Vice President, Treasurer and              March 27, 2002
- -----------------------------
  John E. Schneider                 Chief Financial Officer (Principal
                                    Financial and Accounting Officer)

/s/John M. Albertine*          Director                                          March 27, 2002
- -----------------------------
  John M. Albertine

/s/Daniel A. Burkhardt*        Director                                          March 27, 2002
- -----------------------------
  Daniel A. Burkhardt

/s/Edward J. Curtis*           Director                                          March 27, 2002
- -----------------------------
  Edward J. Curtis

/s/John T. Ferris*             Director                                          March 27, 2002
- -----------------------------
  John T. Ferris

/s/Michael O. Frazer*          Director                                          March 27, 2002
- -----------------------------
  Michael O. Frazer

                               Director
- -----------------------------
  John R. Hinton

/s/Harvey I. Klein*            Director                                          March 27, 2002
- -----------------------------
  Harvey I. Klein

/s/Frederick S. Moore*         Director                                          March 27, 2002
- -----------------------------
  Frederick S. Moore

/s/Edith A. Stotler*           Director                                          March 27, 2002
- -----------------------------
  Edith A. Stotler

/s/Donald W. Thomason*         Director                                          March 27, 2002
- -----------------------------
  Donald W. Thomason

*By /s/Marcus Jackson                                                            March 27, 2002
- -----------------------------
  Marcus Jackson
  Attorney-in-fact


                                      - 17 -