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


                                   FORM 10-Q


(Mark One)
   [X]      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 
               EXCHANGE ACT OF 1934
                    For the quarterly period ended September 30, 1997

                                      OR

   [ ]      TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
               SECURITIES EXCHANGE ACT OF 1934
                    For the fiscal period from               to            
                                               -------------   ------------

                         Commission file number 0-8503


                              SEMCO Energy, Inc.
            (Formerly Southeastern Michigan Gas Enterprises, Inc.)
            (Exact name of registrant as specified in its charter)

                Michigan                                   38-2144267
     (State or other jurisdiction of                    (I.R.S. Employer
     incorporation or organization)                    Identification No.)

                 405 Water Street, Port Huron, Michigan 48060
                   (Address of principal executive offices)

                                 810-987-2200
             (Registrant's telephone number, including area code)



     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 
requirements for the past 90 days.  Yes [X]   No [ ]

The number of shares of common stock outstanding as of October 31, 1997, is 
13,088,562.

                              INDEX TO FORM 10-Q
                              ------------------

                     For Quarter Ended September 30, 1997



                                                                        Page
                                                                       Number
                                                                       ------

COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     1


INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     2


PART I - FINANCIAL INFORMATION

   Item 1.   Financial Statements . . . . . . . . . . . . . . . . . .     3

   Item 2.   Management's Discussion and Analysis of Financial 
             Condition and Results of Operations  . . . . . . . . . .    11


PART II - OTHER INFORMATION

   Item 1.   Legal Proceedings  . . . . . . . . . . . . . . . . . . .    16

   Item 2.   Changes in Securities  . . . . . . . . . . . . . . . . .    16

   Item 6.   Exhibits and Reports on Form 8-K . . . . . . . . . . . .    17


SIGNATURES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    18

EXHIBIT INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . .    19

















                                      -2-

                        PART I - FINANCIAL INFORMATION

Item 1.   Financial Statements.

                              SEMCO ENERGY, INC.
                       CONSOLIDATED STATEMENTS OF INCOME
                                  (Unaudited)
                (Thousands of Dollars Except Per Share Amounts)

                                                                Three Months Ended      Nine Months Ended      Twelve Months Ended
                                                                   September 30,          September 30,           September 30,   
                                                                ------------------     -------------------     -------------------
                                                                 1 9 9 7   1 9 9 6      1 9 9 7    1 9 9 6      1 9 9 7    1 9 9 6
                                                                --------   -------     --------   --------     --------   --------
                                                                                                        
OPERATING REVENUE
  Gas sales                                                     $ 24,053   $23,656     $150,237   $150,243     $219,365   $207,842
  Gas marketing                                                   91,380    63,852      330,079    187,191      454,272    226,685
  Transportation                                                   2,654     2,471        9,643      8,810       13,191     12,260
  Other operations                                                 5,761     1,103        8,105      3,356        9,266      4,698
                                                                --------   -------     --------   --------     --------   --------
                                                                $123,848   $91,082     $498,064   $349,600     $696,094   $451,485
                                                                --------   -------     --------   --------     --------   --------
OPERATING EXPENSES
  Cost of gas sold                                              $ 16,036   $15,114     $103,306   $102,479     $151,962   $139,842
  Cost of gas marketed                                            90,175    62,707      322,610    183,676      444,329    222,500
  Operations and maintenance                                      13,711     9,750       36,551     30,432       46,788     39,379
  Depreciation                                                     3,346     2,833        9,568      8,493       12,392     11,563
  Income taxes                                                    (1,789)   (1,685)       3,328      3,233        6,466      6,329
  Taxes other than income taxes                                    2,274     2,329        6,867      6,698        8,817      8,483
                                                                --------   -------     --------   --------     --------   --------
                                                                $123,753   $91,048     $482,230   $335,011     $670,754   $428,096
                                                                --------   -------     --------   --------     --------   --------
OPERATING INCOME                                                $     95   $    34     $ 15,834   $ 14,589     $ 25,340   $ 23,389
Write-down of NOARK investment,
  net of income taxes of $11,308                                      --        --           --         --      (21,000)        -- 
OTHER INCOME (LOSS), NET                                             (31)     (162)          15       (481)        (317)      (100)
                                                                --------   -------     --------   --------     --------   --------
INCOME (LOSS) BEFORE INCOME DEDUCTIONS                          $     64   $  (128)    $ 15,849   $ 14,108     $  4,023   $ 23,289
                                                                --------   -------     --------   --------     --------   --------
INCOME DEDUCTIONS
  Interest on long-term debt                                    $  2,129   $ 2,128     $  6,385   $  6,385     $  8,514   $  8,512
  Other interest                                                     938       456        2,469      1,320        3,315      1,945
  Amortization of debt expense                                        97        93          287        280          380        392
  Dividends on preferred stock                                        48        48          145        145          194        195
                                                                --------   -------     --------   --------     --------   --------
                                                                $  3,212   $ 2,725     $  9,286   $  8,130     $ 12,403   $ 11,044
                                                                --------   -------     --------   --------     --------   --------

NET INCOME (LOSS)                                               $ (3,148)  $(2,853)    $  6,563   $  5,978     $ (8,380)  $ 12,245
                                                                ========   =======     ========   ========     ========   ========

EARNINGS (LOSS) PER SHARE                                       $   (.24)  $  (.22)    $    .50   $    .46     $   (.64)  $    .94
                                                                ========   =======     ========   ========     ========   ========

CASH DIVIDENDS PER SHARE                                        $    .20   $   .19     $    .58   $    .55     $    .77   $    .73
                                                                ========   =======     ========   ========     ========   ========

AVERAGE NUMBER OF COMMON SHARES OUTSTANDING (IN THOUSANDS)        13,053    13,020       13,026     13,013       13,026     13,018
                                                                ========   =======     ========   ========     ========   ========

The notes to the consolidated financial statements are an integral part of 
these statements.

                                      -3-


                              SEMCO ENERGY, INC.
                          CONSOLIDATED BALANCE SHEETS


                                  A S S E T S




                                        (Unaudited)                (Unaudited)
                                       September 30, December 31, September 30,
                                           1997         1996          1996
                                         --------     --------      --------
                                               (Thousands of Dollars)
                                                           
UTILITY PLANT
  Plant in service, at cost              $357,586     $342,778      $332,805
    Less - Accumulated depreciation       102,325       96,391        96,622
                                         --------     --------      --------
                                         $255,261     $246,387      $236,183
OTHER PROPERTY, net                        18,563        9,585         9,391
                                         --------     --------      --------
                                         $273,824     $255,972      $245,574
                                         --------     --------      --------
CURRENT ASSETS                                                              
  Cash and temporary cash investments, 
    at cost                              $  6,417     $ 10,232      $  3,660
  Receivables, less allowances of
    $590 at September 30, 1997, $1,247 
    at December 31, 1996 and $649
    at September 30, 1996                  17,988       43,585        18,436
  Accrued revenue                          42,989       76,549        28,819
  Materials and supplies, at 
    average cost                            3,089        3,025         3,515
  Gas in underground storage               48,348       33,596        34,043
  Gas charges, recoverable from 
    customers                              17,960       13,791        14,496
  Accumulated deferred income taxes           283          364         2,111
  Other                                     6,579       10,040         6,035
                                         --------     --------      --------
                                         $143,653     $191,182      $111,115
                                         --------     --------      --------
DEFERRED CHARGES                                                            
  Unamortized debt expense               $  5,173     $  5,328      $  5,422
  Deferred gas charges, recoverable 
    from customers                             29          290           368
  Advances to equity investees              7,546        5,062         4,218
  Other                                    24,817       20,445        21,129
                                         --------     --------      --------
                                         $ 37,565     $ 31,125      $ 31,137
                                         --------     --------      --------
                                         $455,042     $478,279      $387,826
                                         ========     ========      ========

The notes to the consolidated financial statements are an integral part of 
these statements.

                                      -4-


                              SEMCO ENERGY, INC.
                          CONSOLIDATED BALANCE SHEETS

                   STOCKHOLDERS' INVESTMENT AND LIABILITIES

                                        (Unaudited)                (Unaudited)
                                       September 30, December 31, September 30,
                                           1997         1996          1996
                                         --------     --------      --------
                                               (Thousands of Dollars)
                                                           
COMMON STOCK EQUITY                                                         
  Common stock-par value $1 per share,
    20,000,000 shares authorized; 
    13,078,442, 12,400,331 and 
    12,415,690 shares outstanding        $ 13,078     $ 12,400      $ 12,416
  Capital surplus                          79,921       79,489        79,766
  Retained earnings (deficit)              (2,540)      (1,507)       15,915
                                         --------     --------      --------
                                         $ 90,459     $ 90,382      $108,097
                                         --------     --------      --------
CUMULATIVE CONVERTIBLE PREFERRED STOCK
  Convertible preferred stock - par
    value $1 per share; authorized 
    500,000 shares issuable in series; 
    each convertible to 4.11 common 
    shares                               $      7     $      7      $      7
  Capital surplus                             162          162           162
                                         --------     --------      --------
                                         $    169     $    169      $    169
                                         --------     --------      --------
CUMULATIVE PREFERRED STOCK OF SUBSIDIARY
  $100 par value (redemption price 
    $105 per share); authorized 
    50,000 shares issuable in series;
    31,000 shares outstanding            $  3,100     $  3,100      $  3,100
                                         --------     --------      --------
LONG-TERM DEBT INCLUDING CAPITAL LEASES  $103,548     $106,468      $106,629
                                         --------     --------      --------
CURRENT LIABILITIES                                                         
  Notes payable to banks                 $ 98,900     $ 91,100      $ 51,700
  Current portion of long-term debt
    and capital leases                         --        1,644         1,451
  Accounts payable                         63,717       91,360        41,254
  Customer advance payments                 7,207        5,612         6,287
  Accrued taxes                             1,118          243         2,216
  Accrued interest                          2,808        1,272         2,698
  Other                                     6,804        6,998         5,848
                                         --------     --------      --------
                                         $180,554     $198,229      $111,454
                                         --------     --------      --------
DEFERRED CREDITS                                                            
  Reserve for equity investment          $ 32,942     $ 32,942      $     --
  Accumulated deferred income taxes        10,607       10,113        20,914
  Unamortized investment tax credit         2,581        2,782         2,849
  Customer advances for construction        7,801        8,621         8,725
  Other                                    23,281       25,473        25,889
                                         --------     --------      --------
                                         $ 77,212     $ 79,931      $ 58,377
                                         --------     --------      --------
                                         $455,042     $478,279      $387,826
                                         ========     ========      ========

The notes to the consolidated financial statements are an integral part of 
these statements.
                                      -5-


                              SEMCO ENERGY, INC.
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  (Unaudited)
                            (Thousands of Dollars)

                                                                Three Months Ended      Nine Months Ended      Twelve Months Ended
                                                                   September 30,          September 30,           September 30,   
                                                               -------------------     -------------------     -------------------
                                                                1 9 9 7    1 9 9 6      1 9 9 7    1 9 9 6      1 9 9 7    1 9 9 6
                                                               --------   --------     --------   --------     --------   --------
                                                                                                        
CASH FLOWS FROM OPERATING ACTIVITIES
  Cash received from customers                                 $117,784   $ 81,099     $556,899   $363,059     $682,162   $420,447 
  Cash paid for payrolls and to suppliers                      (134,108)   (93,560)    (505,320)  (324,383)    (638,711)  (377,834)
  Interest paid                                                  (1,288)      (864)      (7,316)    (6,142)     (11,717)   (10,427)
  Income taxes paid                                                (100)      (750)      (3,100)    (3,275)      (3,100)    (3,673)
  Taxes other than income taxes paid                             (3,282)    (3,582)      (5,382)    (4,336)      (9,243)    (7,687)
  Other cash receipts and payments, net                             152      1,399          393      2,813          479      1,113 
                                                               --------   --------     --------   --------     --------   -------- 
    NET CASH FROM OPERATING ACTIVITIES                         $(20,842)  $(16,258)    $ 36,174   $ 27,736     $ 19,870   $ 21,939 
                                                               --------   --------     --------   --------     --------   -------- 
CASH FLOWS FROM INVESTING ACTIVITIES                                               
  Natural gas distribution property additions                  $ (8,551)  $ (7,096)    $(23,116)  $(17,119)    $(36,166)  $(29,403)
  Other property additions                                         (621)       (57)        (767)      (250)        (857)      (462)
  Property retirement costs, net of proceeds                         (1)       502          200        584          481      1,524  
  Purchase of Sub-Surface, net of cash acquired                 (14,966)        --      (14,966)        --      (14,966)        -- 
  Proceeds from sale and leaseback of capital assets                 --         --           --         --           --      3,737 
  Advances to equity investees                                     (820)        --       (2,484)        --       (3,328)      (872)
                                                               --------   --------     --------   --------     --------   -------- 
    NET CASH FROM INVESTING ACTIVITIES                         $(24,959)  $ (6,651)    $(41,133)  $(16,785)    $(54,836)  $(25,476)
                                                               --------   --------     --------   --------     --------   -------- 
CASH FLOWS FROM FINANCING ACTIVITIES                                               
  Issuance of common stock                                     $  1,384   $  1,321     $  4,092   $  3,916     $  5,308   $  5,608 
  Repurchase of common stock                                       (282)      (698)      (2,982)    (4,120)      (4,491)    (5,289)
  Net change in notes payable to banks                           48,200     22,700        7,800         --       47,200     13,850 
  Repayment of long-term debt                                        --         --          (25)       (15)         (25)       (15)
  Payment of dividends                                           (2,670)    (2,524)      (7,741)    (7,336)     (10,269)    (9,742)
                                                               --------   --------     --------   --------     --------   -------- 
    NET CASH FROM FINANCING ACTIVITIES                         $ 46,632   $ 20,799     $  1,144   $ (7,555)    $ 37,723   $  4,412 
                                                               --------   --------     --------   --------     --------   -------- 
    NET INCREASE (DECREASE) IN CASH AND 
    TEMPORARY CASH INVESTMENTS                                 $    831   $ (2,110)    $ (3,815)  $  3,396     $  2,757   $    875 
                                                               --------   --------     --------   --------     --------   -------- 
CASH AND TEMPORARY CASH INVESTMENTS                                                
  Beginning of Period                                          $  5,586   $  5,770     $ 10,232   $    264     $  3,660   $  2,785 
                                                               --------   --------     --------   --------     --------   -------- 
  End of Period                                                $  6,417   $  3,660     $  6,417   $  3,660     $  6,417   $  3,660 
                                                               ========   ========     ========   ========     ========   ======== 
RECONCILIATION OF NET INCOME TO                                                    
 NET CASH FROM OPERATING ACTIVITIES                                                
  Net income (loss)                                            $ (3,148)  $ (2,853)    $  6,563   $  5,978     $ (8,380)  $ 12,245 
  Adjustments to reconcile net income (loss) to  
   net cash from operating activities:
    Depreciation                                                  3,346      2,833        9,568      8,493       12,392     11,563 
    Write-down of NOARK investment, net                              --         --           --         --       21,000         -- 
    Deferred taxes and investment tax credits                        (1)     1,662          374      1,772        2,560      1,831 
    Equity (income) loss, net of distributions                      107      1,414           39      3,241          538      2,834 
    Receivables                                                   8,612      2,540       29,973     13,884        4,824    (10,489)
    Accrued revenue                                             (11,918)   (11,263)      33,560     10,035      (14,170)   (15,189)
    Materials and supplies and gas in underground storage       (25,711)   (17,560)     (14,816)   (14,106)     (13,879)    (5,233)
    Gas charges, recoverable from customers                      (7,202)    (5,096)      (4,169)    (8,642)      (3,464)    (4,750)
    Other current assets                                         (2,232)    (3,494)       4,547       (208)         (84)     1,423 
    Accounts payable                                             13,603     12,055      (32,403)     3,236       17,703     27,391  
    Customer advances and amounts payable to customers            5,377      4,401          838       (760)          59        810 
    Accrued taxes                                                (2,582)    (3,013)         875      1,512       (1,098)       928 
    Other, net                                                      907      2,116        1,225      3,301        1,869     (1,425)
                                                               --------   --------     --------   --------     --------   -------- 
      NET CASH FROM OPERATING ACTIVITIES                       $(20,842)  $(16,258)    $ 36,174   $ 27,736     $ 19,870   $ 21,939 
                                                               ========   ========     ========   ========     ========   ======== 
SUPPLEMENTAL DISCLOSURES
- ------------------------
Business acquisition, net of cash acquired
  Working capital, other than cash acquired                    $   (421)  $     --     $   (421)  $     --     $   (421)  $     -- 
  Plant and equipment                                             9,355         --        9,355         --        9,355         -- 
  Purchase price in excess of the net assets acquired             6,032         --        6,032         --        6,032         -- 
                                                               --------   --------     --------   --------     --------   -------- 
      Net cash used to acquire Sub-Surface                     $ 14,966   $     --     $ 14,966   $     --     $ 14,966   $     -- 
                                                               ========   ========     ========   ========     ========   ======== 

The notes to the consolidated financial statements are an integral part of 
these statements.
                                      -6-

                              SEMCO ENERGY, INC.
                NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
                                  (Unaudited)


(1)  SIGNIFICANT ACCOUNTING POLICIES

     Under the rules and regulations of the Securities and Exchange Commission 
for Form 10-Q Quarterly Reports, certain footnotes and other financial 
statement information normally included in SEMCO Energy, Inc.'s (the 
Company's), formerly Southeastern Michigan Gas Enterprises, Inc.'s, year-end 
financial statements have been condensed or omitted in the accompanying 
unaudited financial statements.  These financial statements prepared by the 
Company should be read in conjunction with the financial statements and notes 
thereto included in the Company's 1996 Annual Report on Form 10-K filed with 
the Securities and Exchange Commission.  The information in the accompanying 
financial statements reflects, in the opinion of the Company's management, all 
adjustments (which include only normal recurring adjustments) necessary for a 
fair statement of the information shown, subject to year-end and other 
adjustments, as later information may require.

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

     Earnings Per Share.  In February 1997 the Financial Accounting Standards 
Board issued Statement of Financial Accounting Standards No. 128 "Earnings Per 
Share" ("SFAS 128"), which is effective for financial statements for periods 
ending after December 15, 1997.  In general, this statement requires 
replacement of Primary EPS, which the company currently uses to calculate EPS, 
with Basic EPS.  Basic EPS is computed by dividing reported earnings available 
to common share holders by weighted average shares outstanding.  No dilution 
for any potentially dilutive securities is included in the Basic EPS 
calculation.  Due to the fact that the Compan-y- has an immaterial amount of 
dilutive securities, it is anticipated that the calculation of Basic EPS under 
the new standard will not significantly differ from the  Company's current 
calculation.

     Fully diluted EPS, which will now be referred to as diluted EPS, is still 
required.

     Stock-Based Compensation.  In October 1995 the FASB issued SFAS 123, 
"Accounting for Stock-Based Compensation."  In general, SFAS 123 recommends 
that all stock-based compensation given to employees in exchange for their 
services be expensed based on the fair value of the stock instrument.  The 
Company has chosen to continue accounting for these transactions under 
previously existing accounting standards as allowed under SFAS 123.  However, 
if compensation expense under SFAS 123 is materially different, net income and 
earnings per share must be disclosed as if SFAS 123 accounting had been 
applied.  As of September 30, 1997, the fair value of the Company's stock-based 
compensation is not material, and no disclosures have been made.

                                      -7-

(2)  MERGERS AND ACQUISITIONS

     On August 13, 1997, SEMCO Energy Construction Co. (SEMCO Construction), a 
subsidiary of SEMCO Energy Ventures, Inc., purchased the assets and business of 
Sub-Surface Construction Co. (Sub-Surface) for $15,400,000 in cash plus the 
assumption of certain liabilities.  Sub-Surface is involved primarily in the 
construction of underground gas distribution pipelines, service lines and 
associated facilities, primarily in Michigan.  In addition, SEMCO Construction 
entered into several non-compete agreements with prior employees of Sub-Surface 
totaling $1,000,000 ranging from two to five years.

     For financial statement purposes, the acquisition was accounted for as a 
purchase and, accordingly, results of operations are included in the 
consolidated financial statements since the date of acquisition.


(3)  RATE CASE APPROVAL

     On October 29, 1997 the Michigan Public Service Commission (MPSC) approved 
the merger of rate structures, gas recovery clauses, tariffs, and rules and 
regulations for the Company's MPSC-regulated divisions.  Previously, these 
divisions operated as Michigan Gas Company and Southeastern Michigan Gas 
Company.

     Also on October 29, 1997 the MPSC granted a rate increase, to the combined 
divisions, of approximately $400,000 which includes recovery of costs 
related to a change in accounting for retiree medical benefits.  The MPSC 
also approved incentive regulation, in which profits generated in excess of 
the authorized rate of return will be shared with the ratepayer, and the 
aggregation of commercial and industrial customers for gas purchasing 
decisions.


(4)  CAPITALIZATION

Common Stock Equity
- -------------------

     On October 9, 1997, the Company's Board of Directors declared a regular 
quarterly cash dividend on common stock of $.20 per share payable on 
November 15 to shareholders of record at the close of business on November 5.

     In August 1997, the Company paid a quarterly cash dividend of $.20 per 
share to its common shareholders.  Of the total cash dividend of $2,622,000, 
$903,000 was reinvested by shareholders into common stock through participation 
in the Direct Stock Purchase and Dividend Reinvestment Plan (the DRIP).  During 
the quarter, the Company issued 77,499 shares of stock for funds invested 
through the DRIP.  The total funds invested by shareholders in the third 
quarter was $1,384,000.

     Earnings per common share, cash dividends per common share and weighted 
average number of shares outstanding give retroactive effect for all periods 
presented to the 5% stock dividends in May 1997 and 1996.

                                      -8-

Long-Term Debt
- --------------

     On October 17, 1997, the Company issued $30,000,000 of 6.83% Senior Notes 
due 2002 and $30,000,000 of 7.20% Senior Notes due 2007 through private 
placement.  The proceeds of the offering were used to pay down short-term debt.


(5)  COMMITMENTS AND CONTINGENCIES

     SEMCO Arkansas Pipeline Company, a wholly-owned subsidiary of SEMCO Energy 
Ventures, Inc. (Energy Ventures), has a 32% interest in a partnership which 
operates the NOARK Pipeline System.  NOARK is a 302-mile intrastate natural gas 
pipeline, originating in northwest Arkansas and extending northeast across the 
state.

     The Company, SEMCO Arkansas Pipeline Company and Energy Ventures have 
guaranteed 40% of the principal and interest payments on approximately 
$79,138,000 of debt used to finance the pipeline.  Of the total debt, 
$51,000,000 is outstanding pursuant to a long-term arrangement requiring annual 
principal payments of approximately $3,150,000 together with interest on the 
unpaid balance.  This arrangement matures in 2009 and has a fixed interest rate 
of 9.7375%.  The remaining debt is pursuant to a $30,000,000 multibank 
revolving line of credit which currently matures April 26, 1998.  Under the 
terms of the credit agreement, NOARK may request, on an annual basis, a 
one-year extension of the then-effective termination date.  At September 30, 
1997, NOARK had $27,950,000 outstanding under the agreement with interest 
payments at a variable interest rate.

     NOARK has been operating below capacity and generating losses since it was 
placed in service.  Operating cash flows have been insufficient to meet 
principal and interest payments on the debt.  The Company contributed $906,000 
to NOARK in 1994 and $3,312,000 in 1995.

     In December 1995, NOARK received $6,000,000 in settlement of litigation 
between Vesta Energy Company and the NOARK partners.  Vesta paid the settlement 
in consideration of termination of a firm transportation agreement with NOARK, 
including all related contracts, and release from all obligations related to 
the NOARK Pipeline System.

     NOARK used the Vesta settlement to temporarily reduce outstanding 
borrowings on its revolving line of credit.  Therefore, the Company was not 
required to make another contribution to NOARK until October 1996, when the 
Company contributed $844,000.  The Company has contributed an additional 
$2,484,000 during the nine months ended September 30, 1997 and estimates its 
required contributions to NOARK for the balance of 1997 to be $800,000.








                                      -9-

     In December 1996, the Company recorded a one-time non-cash after-tax 
charge against earnings of $21,000,000 on its investment and participation as a 
general partner in NOARK.  On a pre-tax basis, the charge against earnings 
represents a significant portion of the Company's current investment, including 
loan guarantees, in NOARK.  The Company recorded this write-down due to its 
inability to recover the carrying amount of its investment in NOARK, including 
the loan guarantees.  The Company recognized a loss in value of its NOARK 
investment due to recurring losses generated by NOARK and NOARK's continued 
inability to meet principal and interest payments on the partnership debt.

     The Company's short-term credit arrangements, note agreements and 
long-term debt indentures contain restrictive covenants requiring certain 
levels of earnings and the maintenance of certain financial ratios.  Because of 
the NOARK write-down, the Company would have been in violation of certain of 
these covenants, however the Company has received waivers or amendments for all 
affected covenants.

     The Company will continue to explore opportunities to improve the project, 
but the write-down is expected to eliminate the need for significant NOARK 
operating losses being recorded in the Company's future income statements and 
will not affect the Company's cash or stock dividend.

     The Company will continue to try to sell its interest in NOARK.






























                                     -10-

                 PART I - FINANCIAL INFORMATION - (Continued)


Item 2.   Management's Discussion and Analysis of Financial Condition and 
          Results of Operations.


RESULTS OF OPERATIONS

     Net loss for the quarter ended September 30, 1997 was $3,148,000 ($.24 per 
share) compared to $2,853,000 ($.22 per share) for the quarter ended 
September 30, 1996.

     Net income was $6,563,000 ($.50 per share) and $5,978,000 ($.46 per share) 
for the nine months ended September 30, 1997 and September 30, 1996, 
respectively.

     For the twelve months ended September 30, 1997, the Company recorded a net 
loss of $8,380,000 ($.64 per share), which includes the December 1996 
$21,000,000 after-tax write-down of the Company's investment in the NOARK 
Pipeline System (NOARK).  Excluding the NOARK write-down, the Company's net 
income was $12,620,000 ($.97 per share).  This compares to net income of 
$12,245,000 ($.94 per share) for the twelve months ended September 30, 1996.

     The Company's business is primarily seasonal in nature resulting in 
greater earnings during the winter months.  The results of operations for the 
three and nine-month periods ended September 30, 1997, are not necessarily 
indicative of the results to be expected for the full year.

     See Note 5 in the notes to the consolidated financial statements for a 
discussion of commitments and contingencies.

     A comparison of quarterly, year-to-date and twelve-month-to-date revenues, 
margins and system throughput follows on the next page.



















                                     -11-



                                                  Three Months Ended      Nine Months Ended      Twelve Months Ended
                                                     September 30,          September 30,           September 30,   
                                                   -----------------     -------------------     -------------------
                                                   1 9 9 7   1 9 9 6      1 9 9 7    1 9 9 6      1 9 9 7    1 9 9 6
                                                   -------   -------     --------   --------     --------   --------
                                                                      (in thousands of dollars)
                                                                                          
Operating Revenue
  Gas Sales
    Residential                                    $15,378   $14,545     $ 95,706   $ 94,349     $140,001   $130,619
    Commercial                                       7,192     6,707       45,681     44,741       66,449     61,921
    Industrial                                       1,483     2,404        8,850     11,153       12,915     15,302
                                                   -------   -------     --------   --------     --------   --------
                                                   $24,053   $23,656     $150,237   $150,243     $219,365   $207,842
  Cost of Gas Sold                                  16,036    15,114      103,306    102,479      151,962    139,842
                                                   -------   -------     --------   --------     --------   --------
    Gross Margin                                   $ 8,017   $ 8,542     $ 46,931   $ 47,764     $ 67,403   $ 68,000
                                                   =======   =======     ========   ========     ========   ========

  Gas Marketing                                    $91,380   $63,852     $330,079   $187,191     $454,272   $226,685
  Cost of Gas Marketed                              90,175    62,707      322,610    183,676      444,329    222,500
                                                   -------   -------     --------   --------     --------   --------
                                                   $ 1,205   $ 1,145     $  7,469   $  3,515     $  9,943   $  4,185
                                                   =======   =======     ========   ========     ========   ========

  Transportation Revenue                           $ 2,654   $ 2,471     $  9,643   $  8,810     $ 13,191   $ 12,260
                                                   =======   =======     ========   ========     ========   ========

  Other                                            $ 5,761   $ 1,103     $  8,105   $  3,356     $  9,266   $  4,698
                                                   =======   =======     ========   ========     ========   ========

                                                                     (in millions of cubic feet)         
                                                                                          
  Gas Volumes
    Gas Sales
      Residential                                    1,705     1,744       17,709     18,093       26,318     26,754
      Commercial                                       949       978        9,200      9,320       13,551     13,727
      Industrial                                       200       394        1,836      2,484        2,737      3,578
                                                   -------   -------     --------   --------     --------   --------
                                                     2,854     3,116       28,745     29,897       42,606     44,059
                                                   =======   =======     ========   ========     ========   ========

    Gas Marketing                                   41,436    31,706      135,552     83,201      181,779    104,152
                                                   =======   =======     ========   ========     ========   ========

    Gas Transported                                  4,390     4,120       15,570     14,741       21,361     20,694
                                                   =======   =======     ========   ========     ========   ========

  Degree Days - Actual                                 192       168        4,436      4,695        6,840      7,324
              - Percent of Normal                       89%       74%         100%       106%         100%       107%
  Gas Sales Customers-Average                      235,516   227,680      235,703    227,583      234,766    226,898


QUARTER RESULTS

     Gross margin on gas sales decreased by $525,000 (6%) for the three month 
period ending September 30, 1997 primarily due to an adjustment to recognize 
lost and unaccounted for gas.  Offsetting this adjustment was continued strong 
growth in the residential and commercial customer base as gas sales customers 
increased by over 3%.






                                     -12-

     Gas marketing revenues and volumes increased by $27,528,000 (43%) and 
9,730,000 Mcf (31%), respectively.  These increases were due to the growth in 
out-of-state marketing operations and the start-up of the Mid-Atlantic office 
in late 1996.  Marketing revenues were also affected by increases in the price 
of gas compared to the prior year period.  Overall marketing revenues, net of 
marketers' incentive compensation, decreased by $82,000 or 10% as a result of 
smaller per unit margin at both the retail and wholesale levels.

     Gas marketing volumes and margins are subject to significant competitive 
factors.  In addition to fluctuations caused by the price of alternative fuels 
and seasonal patterns, competition within the natural gas marketing industry 
continues to increase.

     Transportation revenue increased $183,000 (7%) as a result of gas sales 
customers switching to transportation.  Other operations revenue increased 
$4,658,000 (422%) due to the purchase of Sub-Surface in August 1997.  The 
acquisition was accounted for as a purchase and revenues have been recorded 
since the acquisition date.

     Operation and maintenance expense increased by $3,961,000 (40%), primarily 
due to the acquisition of Sub-Surface.  Operations and maintenance expenses 
attributable to Sub-Surface totaled $4,341,000.  The Company experienced a 4% 
decrease in operation and maintenance expense after excluding the Sub-Surface 
acquisition.  Depreciation expense increased by $513,000 (18%) as a result of 
utility plant additions and the depreciation of Sub-Surface equipment.

     Other interest increased by $482,000 (106%) as a result of higher 
borrowing on the Company's lines of credit.  These borrowings were primarily 
for utility plant, increased working capital to support higher marketing 
activity and increased gas prices from the same period a year ago.

     Other income (net) increased $131,000 resulting from significantly smaller 
losses from NOARK Pipeline.


YEAR-TO-DATE RESULTS

     Gross margin on gas sales decreased $833,000 (2%) for the nine month 
period ending September 30, 1997 over the same period in 1996.  Although the 
Company experienced normal weather during the first nine months of 1997, the 
comparable period in 1996 was 6% colder than normal resulting in a 2% 
decrease in residential and commercial volumes sold.  The margin decreases 
were offset in part by the increase in gas sales customers of approximately 
8,100 or 4%.  The annual true-up of unbilled revenue adversely affected 
margins, year-to-year, by $546,000.

     Margins from natural gas marketing activities, net of marketers' incentive 
compensation, increased by $1,710,000 (67%) while volumes increased 63%.  The 
addition of the Mid-Atlantic marketing area in December 1996 and continued 
growth in other out-of-state markets contributed to these increases.



                                     -13-

     The acquisition of Sub-Surface in 1997 accounted for the significant 
increase in other operations of $4,749,000 (142%).  The increase in operations 
and maintenance expense of $6,119,000 (20%) is primarily due to the inclusion 
of Sub-Surface [$4,300,000] and increases in the costs of independent marketing 
contracts [$2,200,000] related to the growth in the Company's marketing 
operations.  The Company experienced a slight decrease in operations and 
maintenance expense ($466,000), exclusive of Sub-Surface and independent 
marketing contracts.

     Depreciation expense increased by $1,075,000 (13%) due to property 
additions of $700,000 and the acquisition of Sub-Surface of $300,000.  Property 
additions, higher marketing and higher cost of storage gas were financed by an 
increase in short-term borrowing resulting in an increase in other interest of 
$1,149,000 (87%).

     Other income (loss) net increased $496,000 as a result of the reduction of 
losses from the NOARK Pipeline investment.


TWELVE-MONTH RESULTS

     Gas sales margins decreased $597,000 (1%) for the twelve month period 
ended September 30, 1997, compared to the same period a year earlier.  
Adjustments relating to the annual true-up of unbilled revenue and 7% warmer 
weather were offset by the addition of approximately 7,900 gas sales customers.

     Gas marketing margins increased $2,494,000 (78%), net of marketers' 
incentive compensation, primarily due to a 75% increase in volumes sold.  In 
1996 the Company began expanding its operations outside of its traditional 
markets through the use of independent contractors.

     Other operations revenue increased by $4,568,000 due to the Sub-Surface 
acquisition.

     Operations and maintenance expense increased by $7,409,000 (19%).  This 
increase is attributed to the purchase of Sub-Surface and increased expenses 
associated with the independent marketing contractors, which accounted for 
$4,300,000 and $3,264,000 of the increase, respectively.

     Other interest increase $1,370,000 (70%).  This increase is due to 
short-term debt incurred to fund the Company's increased marketing activity, 
customer additions and increased gas prices.


LIQUIDITY AND CAPITAL RESOURCES

     Net cash from operating activities for the three, nine and twelve month 
periods ended September 30, 1997, as compared to the same periods last year, 
decreased $(4,584,000), $8,438,000 and $(2,069,000), respectively.  The changes 
in operating cash flows between the periods is primarily due to the timing of 
cash receipts and cash payments and its effect on working capital.


                                     -14-

     The Company anticipates spending approximately $6,200,000 for capital 
items during the remainder of 1997.  These estimated amounts will primarily 
relate to customer additions and system replacement in the gas distribution 
operations.

     See Note 5 of the Notes to the Consolidated Financial Statements for a 
discussion of contributions to the NOARK Pipeline System pursuant to the 
Company's guarantees of the pipeline's debt.

     Financing activities contributed $46,632,000 in funds during the third 
quarter, primarily for notes payable to banks used to fund gas purchases and 
normal gas distribution construction.


FUTURE FINANCING SOURCES

     The remainder of the Company's operating cash flow needs, as well as 
dividend payments and capital expenditures for the balance of 1997, is expected 
to be generated primarily through operating activities and short-term 
borrowings.  At September 30, 1997, the Company had $56,700,000 in unused lines 
of credit.
































                                     -15-

                          PART II - OTHER INFORMATION


Item 1.   Legal Proceedings.

          None.


Item 2.   Changes in Securities.

          The Company has short-term credit arrangements, note agreements and 
long-term debt indentures which contain restrictive financial covenants 
including, among others, limits on the payment of dividends beyond certain 
levels.  Because of the NOARK write-down in December 1996, the Company would 
not have been in compliance with certain of these covenants.  However, the 
Company has received waivers or amendments with respect to the affected credit 
arrangements and expects no deviation from its historical dividend payment 
record in 1997.


Item 3.   Not applicable.


Item 4.   Not applicable.


Item 5.   Not applicable.



























                                     -16-

Item 6.   Exhibits and Reports on Form 8-K.

     (a)  List of Exhibits - (See Exhibit Index.)

          --Articles of Incorporation of SEMCO Energy, Inc. (formerly 
               Southeastern Michigan Gas Enterprises, Inc.), as restated 
               July 11, 1989.
          --Certificate of Amendment to Article III of the Articles of 
               Incorporation dated May 16, 1990.
          --Certificate of Amendment to Articles I, III and VI of the Articles 
               of Incorporation dated April 16, 1997.
          --Bylaws--last revised August 15, 1997.
          --Trust Indenture dated April 1, 1992, with NBD Bank, N.A. as 
               Trustee.
          --Note Agreement dated as of June 1, 1994, relating to issuance of 
               $80,000,000 of long-term debt.
          --Rights Agreement dated as of April 15, 1997 with Continental Stock 
               Transfer & Trust Company, as Rights Agent.
          --Note Agreement dated as of October 1, 1997, relating to issuance of 
               $60,000,000 of long-term debt.
          --Guaranty Agreement dated October 10, 1991, relating to financing of 
               NOARK.
          --Short-Term Incentive Plan.
          --Deferred Compensation and Phantom Stock Purchase Agreement (for 
               outside directors only).
          --Supplemental Retirement Plan for Certain Officers.
          --1997 Long-Term Incentive Plan.
          --Stock Option Certificate and Agreement dated October 10, 1996 with 
               William L. Johnson.
          --Stock Option Certificate and Agreement dated February 26, 1997 with 
               William L. Johnson.
          --Employment Agreement dated October 10, 1996, with William L. 
               Johnson.
          --Change of Control Employment Agreement dated October 10, 1996, with 
               William L. Johnson.
          --Financial Data Schedule.
          --Proxy Statement dated March 7, 1997.

     (b)  Reports on Form 8-K.

          On August 28, 1997, the Company filed Form 8-K to report the 
acquisition of Sub-Surface Construction Co.












                                     -17-

                                  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.

                                       SEMCO ENERGY, INC.
                                            (Registrant)



Dated:  November 14, 1997     
                                       By: /s/Robert J. Digan, II
                                           ------------------------------------
                                           Robert J. Digan, II
                                           Senior Vice President and Principal
                                           Accounting and Financial Officer


































                                     -18-

                                 EXHIBIT INDEX
                                   Form 10-Q
                              Third Quarter 1997
                                                                 Filed
                                                          --------------------
Exhibit                                                                  By
  No.               Description                           Herewith    Reference
- -------             -----------                           --------    ---------
 2        Plan of Acquisition, etc.                          NA           NA
 3.(i).1  Articles of Incorporation of SEMCO Energy, Inc.
          (formerly Southeastern Michigan Gas 
          Enterprises, Inc.), as restated 
          July 11, 1989.(e)                                               x
 3.(i).2  Certificate of Amendment to Article III
          of the Articles of Incorporation dated
          May 16, 1990.(f)                                                x
 3.(i).3  Certificate of Amendment to Articles I,
          III and VI of the Articles of Incorporation
          dated April 16, 1997.(l)                                        x
 3.(ii)   Bylaws--last revised August 15, 1997.              x
 4.1      Trust Indenture dated April 1, 1992, with
          NBD Bank, N.A. as Trustee.(b)                                   x 
 4.2      Note Agreement dated as of June 1, 1994,
          relating to issuance of $80,000,000 of 
          long-term debt.(d)                                              x
 4.3      Rights Agreement dated as of April 15, 1997
          with Continental Stock Transfer & Trust Company, 
          as Rights Agent.(j)                                             x
 4.4      Note Agreement dated as of October 1, 1997,
          relating to issuance of $60,000,000 of
          long-term debt.                                    x
10        Material Contracts.
10.1      Guaranty Agreement dated October 10, 1991, 
          relating to financing of NOARK.(a)                              x
10.2      Short-Term Incentive Plan.(c)                                   x
10.3      Deferred Compensation and Phantom Stock
          Purchase Agreement (for outside
          directors only).(g)                                             x
10.4      Supplemental Retirement Plan for Certain 
          Officers.(h)                                                    x
10.5      1997 Long-Term Incentive Plan.(j)                               x
10.6      Stock Option Certificate and Agreement
          dated October 10, 1996 with 
          William L. Johnson.(k)                                          x
10.7      Stock Option Certificate and Agreement
          dated February 26, 1997 with
          William L. Johnson.(k)                                          x
10.8      Employment Agreement dated October 10, 1996,
          with William L. Johnson.(l)                                     x
10.9      Change of Control Employment Agreement dated
          October 10, 1996, with William L. Johnson.(l)                   x
11        Statement re computation of per share earnings.    NA           NA
15        Letter re unaudited interim financial 
          information.                                       NA           NA
18        Letter re change in accounting principle.          NA           NA


                                     -19-

                                 EXHIBIT INDEX
                                  (Continued)
                                   Form 10-Q
                              Third Quarter 1997
                                                                 Filed
                                                          --------------------
Exhibit                                                                  By
  No.               Description                           Herewith    Reference
- --------            -----------                           --------    ---------
19        Report furnished to security holders.              NA           NA
22        Published report regarding matters submitted 
          to a vote of security holders.                     NA           NA
23        Consent of Independent Public Accountants.         NA           NA
24        Power of Attorney.                                 NA           NA
27        Financial Data Schedule.                           x            
99.1      Proxy Statement dated March 7, 1997.(i)                         x



Key to Exhibits Incorporated by Reference 

     (a)  Filed with SEMCO Energy, Inc.'s (formerly Southeastern Michigan Gas 
          Enterprises, Inc.'s) Registration Statement, Form S-2, No. 33-46413, 
          filed March 16, 1992.
     (b)  Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended March 
          31, 1992, File No. 0-8503.
     (c)  Filed with SEMCO Energy, Inc.'s Form 10-K for 1992, dated March 30, 
          1993, File No. 0-8503.
     (d)  Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended 
          June 30, 1994, File No. 0-8503.
     (e)  Filed with SEMCO Energy, Inc.'s Form 10-K for 1989, dated March 29, 
          1990, File No. 0-8503.
     (f)  Filed with SEMCO Energy, Inc.'s Form 10-K for 1990, dated March 28, 
          1991, File No. 0-8503.
     (g)  Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended 
          September 30, 1994, File No. 0-8503.
     (h)  Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended 
          March 31, 1996, File No. 0-8503.
     (i)  Filed March 6, 1997, pursuant to Rule 14a-6 of the Exchange Act, File 
          No. 0-8503.
     (j)  Filed as part of SEMCO Energy, Inc.'s 1997 Proxy Statement, dated 
          March 7, 1997, File No. 0-8503.
     (k)  Filed with SEMCO Energy, Inc.'s Form 10-K for 1996, dated March 27, 
          1997, File No. 0-8503.
     (l)  Filed with SEMCO Energy, Inc.'s Form 10-Q for the quarter ended 
          March 31, 1997, File No. 0-8503.







                                     -20-