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                                                                     EXHIBIT 3.1


                             ENERGY VENTURES, INC.

                     RESTATED CERTIFICATE OF INCORPORATION

                   (Originally incorporated on July 17, 1980,
                           under the name ENGY, Inc.)


         1.  The name of the corporation is ENERGY VENTURES, INC.

         2.  The address of its registered office in the State of Delaware
is No. 100 West Tenth Street, in the City of Wilmington, County of New Castle.
The name of its registered agent at such address is The Corporation Trust
Company.

         3.  The nature of the business or purposes to be conducted or
promoted is:
             
             To engage in any lawful act or activity for which corporations
         may be organized under the General Corporation Law of Delaware.

         4.  The total number of shares of stock of all classes which the
corporation has authority to issue is Forty-Three Million (43,000,000) shares
of which Forty Million (40,000,000) shares shall be Common Stock, with a par
value of one dollar ($1.00) per share ("Common Stock"), and Three Million
(3,000,000) shares shall be Preferred Stock, with a par value of one dollar
($1.00) per share ("Preferred Stock").

         The designations and the powers, preferences and rights, and the
qualifications, limitations or restrictions of the shares of each class of
stock are as follows:

                                PREFERRED STOCK

                 Preferred Stock may be issued from time to time by the Board
         of Directors as shares of one or more series.  Subject to the
         provisions hereof and the limitations prescribed by law, the Board of
         Directors is hereby vested with the authority and is expressly
         authorized, prior to issuance, by adopting resolutions providing for
         the issuance of, or providing for a change in the number of, shares of
         any particular series and, if and to the extent from time to time
         required by law, by filing a certificate pursuant to the General
         Corporation Law (or other law hereafter in effect relating to the same
         or substantially similar subject matter), to establish or change the
         number of shares to be included in each such series and to fix the
         designation and relative powers, preferences and rights and the
         qualifications and limitations or restrictions thereof relating to the
         shares of each such series.  The vested authority of the Board of
         Directors with respect to each series shall include, but not be
         limited to, the determination of the following:

                          (a)     the distinctive serial designation of such
                 series and the number of shares constituting such series
                 (provided that the aggregate number of shares constituting all
                 series of Preferred Stock shall not exceed Three Million
                 (3,000,000));





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                          (b)  the annual dividend rate, if any, on shares
                 of such series and the preferences, if any, over any other
                 series (or of any other series over such series) with respect
                 to dividends, and whether dividends shall be cumulative and,
                 if so, from which date or dates;

                          (c)  whether the shares of such series shall be
                 redeemable and, if so, the terms and conditions of such
                 redemption, including the date or dates upon and after which
                 such shares shall be redeemable, and the amount per share
                 payable in case of redemption, which amount may vary under
                 different conditions and at different redemption dates;

                          (d)  the obligation, if any, of the corporation to
                 purchase or redeem shares of such series pursuant to a sinking
                 fund or purchase fund and, if so, the terms of such
                 obligation;

                          (e)  whether shares of such series shall be
                 convertible into, or exchangeable for, shares of stock of any
                 other class or classes or any stock of any series of the same
                 class or any other class or classes or any evidences of
                 indebtedness and, if so, the terms and conditions of such
                 conversion or exchange, including the price or prices or the
                 rate or rates of conversion or exchange and the terms of
                 adjustment, if any;

                          (f)  whether the shares of such series shall have
                 voting rights, in addition to the voting rights provided by
                 law, and if so, the terms of such voting rights, including,
                 without limitation, whether such shares shall have the right
                 to vote with the Common Stock on issues on an equal, greater
                 or lesser basis;

                          (g)  the rights of the shares of such series in
                 the event of a voluntary or involuntary liquidation,
                 dissolution, winding up or distribution of assets of the
                 corporation;

                          (h)  whether the shares of such series shall be
                 entitled to the benefit of conditions and restrictions upon
                 (i) the creation of indebtedness of the corporation or any
                 subsidiary, (ii) the issuance of any additional stock
                 (including additional shares of such series  or of any other
                 series) or (iii) the payment of dividends or  the making of
                 other distributions on the purchase, redemption  or other
                 acquisition by the corporation or any subsidiary of  any
                 outstanding stock of the corporation; and
        




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                          (i)  any other relative rights, powers, preferences, 
                 qualifications, limitations or restrictions thereof relating 
                 to any such series.

                 Except where otherwise set forth in the resolution or
         resolutions adopted by the Board of Directors providing for the
         issuance of any series of Preferred Stock, the number of shares
         comprising such series may be increased or decreased (but not below
         the number of shares then outstanding) from time to time by like
         action of the Board of Directors.  The shares of Preferred Stock of
         any one series shall be identical with the other shares in such series
         in all respects except as to the dates from and after which dividends
         thereon shall cumulate, if cumulative.

                 Shares of any series of Preferred Stock which have been
         redeemed (whether through the operation of a sinking fund or
         otherwise) or purchased by the corporation, or which, if convertible
         or exchangeable, have been converted into or exchanged for shares of
         stock of any other class or classes shall have the status of
         authorized and unissued shares of Preferred Stock and may be reissued
         as a part of the series of which they were originally a part or may be
         reclassified and reissued as part of a new series of Preferred Stock
         to be created by resolution or resolutions of the Board of Directors
         or as part of any other series of Preferred Stock, all subject to the
         conditions or restrictions on issuance set forth in the resolution or
         resolutions adopted by the Board of Directors providing for the
         issuance of any series of Preferred Stock and to any filing required
         by law.

                 Subject to the rights of any outstanding shares of any series
         of Preferred Stock, this Certificate of Incorporation may be amended
         from time to time in a manner that would solely modify or change the
         relative powers, preferences and rights and the qualifications and
         limitations or restrictions of any issued shares of any series of
         Preferred Stock then outstanding with the only required vote or
         consent for approval of such amendment being the affirmative vote or
         consent of the holders of a majority of the outstanding shares of the
         series of Preferred Stock so affected provided that the powers,
         preferences and rights and the qualification and limitations or
         restrictions of such series after giving effect to such amendment are
         no greater than the powers, preferences and rights and the
         qualifications and limitations or restrictions permitted to be fixed
         and determined by the Board of Directors with respect to the
         establishment of any new series of shares of Preferred Stock pursuant
         to the authority vested in the Board of Directors by this Article 4.  
         Approval of any such amendment by the holders of the Common Stock 
         shall not be required and any such amendment shall be deemed not to 
         have affected the holders of the Common Stock adversely.

                 The number of authorized shares of Preferred Stock may be
         increased or decreased by the affirmative vote of the holders of a
         majority of the stock of the corporation entitled to vote without the
         separate vote of holders of Preferred Stock as a class.




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                                  COMMON STOCK

                 Subject to all of the rights of the Preferred Stock, and
         except as may be expressly provided with respect to the Preferred
         Stock herein, by law or by the Board of Directors pursuant to this
         Article 4:

                          (a)  dividends may be declared and paid or set
                 apart for payment upon Common Stock out of any assets or funds
                 of the corporation legally available for the payment of
                 dividends and may be payable in cash, stock or otherwise;

                          (b)  the holders of Common Stock shall have the
                 exclusive right to vote for the election of directors and on
                 all other matters requiring stockholder action, each share
                 being entitled to one vote; and

                          (c)  upon the voluntary or involuntary liquidation, 
                 dissolution or winding up of the corporation, the net assets 
                 of the corporation shall be distributed pro rata to the 
                 holders of Common Stock in accordance with their respective 
                 rights and interests to the exclusion of the holders of the 
                 Preferred Stock.

         5.  The corporation is to have perpetual existence.

         6.  In furtherance and not in limitation of the powers conferred
by statute, the board of directors is expressly authorized:

                 To authorize and cause to be executed mortgages and liens upon
         the real and personal property of the corporation.

                 To set apart out of any of the funds of the corporation
         available for dividends a reserve or reserves for any proper purpose
         and to abolish any such reserve in the manner in which it was created.

                 By a unanimous vote of the whole board, to designate one or
         more committees, each committee to consist of at least two directors
         of the corporation.  Any such committee, to the extent provided in the
         resolution of the board of directors, or in the by-laws of the
         corporation, shall have and may exercise all the powers and authority
         of the board of directors in the management of the business and
         affairs of the corporation, and may authorize the seal of the
         corporation to be affixed to all papers which may require it; but no 
         such committee shall have the power or authority in reference to
         amending the certificate of incorporation (except that a committee
         may, to the extent authorized in the resolution or resolutions
         providing for the issuance of shares of stock adopted by the board of
         directors as provided in Section 151(a) of the Delaware General
         Corporation Law, fix any of the preferences or rights of such shares
         relating to dividends, redemption, dissolution, any distribution of
         assets of the corporation or the conversion into, or the exchange of
         such shares for, shares of any other class or classes, or any other
         series of the same
        



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         or any other class or classes of stock of the corporation), adopting
         an agreement of merger or consolidation under Section 251 or 252 of
         the Delaware General Corporation Law, recommending to the stockholders
         the sale, lease or exchange of all or substantially all of the
         corporation's property and assets, recommending to the stockholders a
         dissolution of the corporation or a revocation of a dissolution, or
         amending the bylaws of the corporation; and, unless the resolution,
         bylaws or certificate of incorporation expressly so provides, no such
         committee shall have the power or authority to declare a dividend, to
         authorize the issuance of stock or to adopt a certificate of ownership
         and merger pursuant to Section 253 of the Delaware General Corporation
         Law.

                 When and as authorized by the stockholders in accordance with
         statute, to sell, lease or exchange all or substantially all of the
         property and assets of the corporation, including its good will and
         its corporate franchises, upon such terms and conditions and for such
         consideration, which may consist in whole or in part of money or
         property including shares of stock in, and/or other securities of, any
         other corporation or corporations, as its board of directors shall
         deem expedient and for the best interest of the corporation.

         7.  Elections of directors need not be by written ballot unless
the by-laws of the corporation shall so provide.

         Meetings of stockholders may be held within or without the State of
Delaware, as the by-laws may provide.  The books of the corporation may be kept
(subject to any provision contained in the statutes) outside the State of
Delaware at such place or places as may be designated from time to time by the
board of directors or in the by-laws of the corporation.

         Whenever a compromise or arrangement is proposed between this
corporation and its creditors or any class of them and/or between this
corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this corporation or of any creditor or stockholder thereof or on the
application of any receiver or receivers appointed for this corporation under
the provisions of section 291 of Title 8 of the Delaware Code or on the
application of trustees in dissolution or of any receiver or receivers
appointed for this corporation under the provisions of section 279 of Title 8
of the Delaware Code order a meeting of the creditors or class of creditors,
and/or of the stockholders or class of stockholders of this corporation, as the
case may be, to be summoned in such manner as the said court directs.  If a
majority in number representing three-fourths in value of the creditors or
class of creditors, and/or of the stockholders or class of stockholders of this
corporation, as the case may be, agree to any compromise or arrangement and to
any reorganization of this corporation as consequence of such compromise or 
arrangement, the said compromise or arrangement and the said reorganization
shall, if sanctioned by the court to which the said application has been made,
be binding on all the creditors or class of creditors, and/or on all the
stockholders or class of stockholders, of this corporation, as the case may be,
and also on this corporation.
        



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         8.  The corporation reserves the right to amend, alter, change or
repeal any provision contained in this certificate of incorporation, in the
manner now or hereafter prescribed by statute, and all rights conferred upon
stockholders herein are granted subject to this reservation; provided, that
until the sooner of (i) the termination of that certain Stockholders Agreement
dated June 25, 1984 between the Appalachian Company and Apco Oil Corporation
Liquidating Trust in accordance with the provisions of section 4 of such
agreement, a copy of such agreement being on file and available for copying and
inspection during business hours at the principal office of the corporation, or
(ii) June 25, 1986, no amendments to this Certificate of Incorporation may be
adopted without the approval, by vote or consent, of the holders of at least
70% of the shares of common stock of the corporation outstanding on the date of
such adoption.

         9.  Until the sooner of (i) the termination of that certain
Stockholders Agreement dated June 25, 1984 between The Appalachian Company and
Apco Oil Corporation Liquidating Trust in accordance with the provisions of
section 4 of such agreement, a copy of such agreement being on file and
available for copying and inspection during business hours at the principal
office of the corporation, or (ii) June 25, 1986, no amendments to the Bylaws
of the corporation may be adopted without the approval, by vote or consent, of
the holders of at least 70% of the shares of common stock of the corporation
outstanding on the date of such adoption.

         10. A director of the corporation shall not be personally liable
to the corporation or its stockholders for monetary damages for breach of
fiduciary duty as a director, except for liability (i) for any breach of the
director's duty of loyalty to the corporation or its stockholders, (ii) for
acts or omissions not in good faith or which involve intentional misconduct or
a knowing violation of law, (iii) under Section 174 of the General Corporation
Law of the State of Delaware, or (iv) for any transaction from which the
director derived an improper personal benefit.

         IN WITNESS WHEREOF, this Restated Certificate of Incorporation, which
only restates and integrates and does not further amend the provisions of the
Certificate of Incorporation of this corporation as heretofore amended or
supplemented, there being no discrepancies between those provisions and the
provisions of this Restated Certificate of Incorporation, and it having been
duly adopted by the corporation's Board of Directors in accordance with Section
245 of the General Corporation Law of the State of Delaware, has been executed
by its duly authorized officer this 8th day of May, 1996.


                                        ENERGY VENTURES, INC.


                                        By:    /s/ JAMES G. KILEY
                                           ------------------------------------
                                                   James G. Kiley
                                              Vice President-Finance,
                                              Treasurer and Secretary




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