Document:

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                                 Exhibit 10.1

                                AMENDMENT NO. 1
                                      TO
                 AMENDED AND RESTATED STOCK PURCHASE AGREEMENT

     THIS AMENDMENT NO. 1 TO AMENDED AND RESTATED STOCK PURCHASE AGREEMENT (this
"Amendment") is made and entered into this 20th day of November, 2000, by and
between The Wiser Oil Company, a Delaware corporation (the "Company"), and Wiser
Investment Company, LLC, a Delaware limited liability company ("WIC").

                            W I T N E S S E T H :
                            - - - - - - - - - -

     WHEREAS, the Company and WIC entered into that certain Amended and Restated
Stock Purchase Agreement dated as of December 13, 1999 (the "Amended and
Restated Stock Purchase Agreement"); and

     WHEREAS, the Company and WIC wish to enter into this Agreement to amend the
Amended and Restated Stock Purchase Agreement to extend the length of WIC's
Option to purchase additional preferred shares;

     NOW, THEREFORE, in consideration of the mutual covenants and agreements set
forth herein and in the Amended and Restated Stock Purchase Agreement and other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

     Section 1. Certain Definitions.  Terms used in this Amendment and not
                -------------------
otherwise defined shall have the meanings set forth in the Amended and Restated
Stock Purchase Agreement.

     Section 2. Option to Purchase Additional Preferred Shares.  The Amended and
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Restated Stock Purchase Agreement is hereby amended in order to delete
subsection (b) of Section 2.5 and to replace such subsection with a new
subsection (b) to Section 2.5, to read in its entirety as follows:

     "(b)  The Option shall be exercisable at any time and from time to time
following the Closing and shall remain in full force and effect until 11:59
p.m., Dallas time, on May 25, 2001, or on such later date as may be mutually
agreed to by the Company and WIC (the "Option Term")."

     Section 3. Ratification of Amended and Restated Stock Purchase Agreement.
                -------------------------------------------------------------
The Amended and Restated Stock Purchase Agreement is hereby ratified and
confirmed in all respects.
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     Section 4. Counterparts.  This Amendment may be executed in several
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counterparts, each of which shall be an original and all of which shall
constitute but one and same instrument.

     IN WITNESS WHEREOF, each of the parties hereto has caused this Amendment to
be executed by its duly authorized representative as of the date first written
above.

                                            THE WISER OIL COMPANY

                                            By:   /s/ A. Wayne Ritter
                                                  -------------------------
                                               Name:  A. Wayne Ritter
                                                      ---------------------
                                               Title: President
                                                      ---------------------

                                            WISER INVESTMENT COMPANY, LLC

                                            By:   /s/ George K. Hickox, Jr.
                                                  -------------------------
                                               Name:  George K. Hickox, Jr.
                                                      ---------------------
                                               Title: Authorized Signatory
                                                      ---------------------<PAGE>

                                                                    Exhibit 4.16

                            REGISTRATION AGREEMENT

     This Registration Agreement (the "Agreement"), dated as of the 20th day of
February, 2000 is entered into between XCEL Management, Inc., a Utah corporation
(the "Company") and Hewlett-Packard Co. ("HP").

     WHEREAS, there are currently outstanding 9,404,095 shares of Common Stock
of the Company;

     WHEREAS, the Company is contemplating a reorganization and recapitalization
(the "Contemplated Reorganization") whereby each holder of outstanding Common
Stock of the Company will receive two (2) shares of Common Stock in a newly
formed Delaware entity for every one (1) share of Common Stock currently held;

     WHEREAS, pursuant to a Subscription Agreement  dated February 20, 2000 (the
"Subscription Agreement"), by and among the Company and HP. HP has purchased
141,056 shares of common stock $0.001 par value per share (the "Common Stock"),
of the Company;

     WHEREAS, pursuant to that certain Warrant to Purchase Common stock dated
February 20, 2000. HP has acquired a Warrant (the "Warrant") to purchase 141,056
shares of Common Stock (the Common Stock purchased pursuant to the Subscription
Agreement and the underlying shares subject to the Warrant are hereafter
collectively referred to as the "Shares");

     WHEREAS, in order to insure liquidity in the future the Holder wishes to
have the Shares registered and the Company wishes to grant such registration
rights.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, the parties hereto agree as follows:

     1.   Registration Rights.
          -------------------

          1.1  Definitions. As used herein:

               (a)  The terms "register," "registered" and "registration" refer
                    to a registration effected by preparing and filing with the
                    Securities and Exchange Commission (the "SEC") a
                    registration statement pursuant to the Securities Act of
                    1933, as amended (the "Act"), and the declaration or order
                    of effectiveness of such registration statement these terms
                    do not include a registration statement filed on Form S-8
                    nor rule 1145 transactions.

               (b)  For the purposes hereof the term "Registerable Securities"
                    means shares of (i) common stock, preferred stock or debt
                    securities of the Company (the "Securities"), (ii) stock or
                    debt securities issued in lieu of the Securities in any
                    reorganization which have not been sold to the public and
                    (iii) stock issued in respect of the stock referred in (i)
                    and (ii) as a result of a stock split, stock dividend,
                    recapitalization or combination, which have not been sold to
                    the public.

               (c)  The "holder" means any holder of this Warrant.

          1.2  Piggyback Registration Rights

               (a)  If the Company at any time proposes to register any of its
                    securities under the Act, whether of its own accord or at
                    the demand of any holder of such securities pursuant to an
                    agreement with respect to the registration thereof (provided
                    such agreement does not prohibit third parties from
                    including additional securities in such registration), and
                    if

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                    the form of registration statement proposed to be used may
                    be used for the registration of Registerable Securities, the
                    Company will give notice to Holder not less than 10 days nor
                    more than 30 days prior to the filing of such registration
                    statement of its intention to proceed with the proposed
                    registration (the "Piggyback Registration"), and, upon
                    written request of the Holder made within ten (10) days
                    after the receipt of any such notice (which request will
                    specify the Registerable Securities intended to be disposed
                    of by the Holder and state the intended method of
                    disposition thereof), the Company will use its best efforts
                    to cause all Registerable Securities of Holder as to which
                    registration has been requested to be registered under the
                    Act, provided that if such registration is in connection
                    with an underwritten public offering. Holder's Registerable
                    Securities to be included in such registration shall be
                    offered upon the same terms and conditions as apply to any
                    other securities included in such registration.
                    Notwithstanding anything contained in this Section 1.2 to
                    the contrary, the Company shall have no obligation to cause
                    Registerable Securities to be registered with respect to any
                    Registerable Securities which shall be eligible for resale
                    under Rule 144(k) of the Securities Act.

               (b)  If a PiggyBack Registration is a primary registration on
                    behalf of the Company and is in connection with an
                    underwritten offering, and if the managing underwriters
                    advise the Company in writing that in their opinion the
                    amount of securities requested to be included in such
                    registration (whether by the Company, the Holder, or other
                    holders of the Company's securities pursuant to any other
                    rights granted by the Company to demand inclusion of any
                    such securities in such registration) exceeds the amount of
                    such securities which can be successfully sold in such
                    offering, the Company will include in such registration the
                    amount of securities requested to be included which in the
                    opinion of such underwriters can be sold, in the following
                    order (A) first, all of the securities the Company proposes
                    to sell, and (B) second, any other securities requested to
                    be included in such registration, pro rata among the holders
                    thereof on the basis of the amount of such securities then
                    owned by such holders.

               (c)  If a Piggyback Registration is a secondary registration on
                    behalf of the holders of securities of the Company and is in
                    connection with an underwritten public offering, and if the
                    managing underwriters advise the Company in writing that in
                    their opinion the amount of securities requested to be
                    included in such registration (whether by such holders, by
                    the Holder, or by holders of the Company's securities
                    pursuant to any other rights granted by the Company to
                    demand inclusion of securities in such registration) exceeds
                    the amount of such securities which can be sold in such
                    offering, the Company will include in, such registration the
                    amount of securities is requested to be included which in
                    the option of such underwriters can be sold, in the
                    following order (A) first, all of the securities requested
                    to be included by holders demanding or requesting such
                    registration, and (B) second, any other securities requested
                    to be included in such registration, pro rata among the
                    holders thereof on the basis of the amount of such
                    securities then owned by such holders.

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     2.   Adjustment Provisions
          ----------------------

          (a)  If the Company shall, during the term hereof. (i) declare a
     dividend and make a distribution on the Common Stock payable in shares of
     Common Stock, (ii) subdivide or combine its outstanding shares of Common
     Stock, (iii) change the number of shares of Common Stock evidence by this
     Agreement by reclassification, exchange or substitution, or (iv) reorganize
     the capital structure of the Company by merger, reorganization,
     consolidation or sale of assets, then after the occurrence of such event,
     this Agreement shall apply to the number of shares of Common Stock or other
     securities into which the Shares subject to each provision herein shall
     have been converted, substituted, combined, subdivided, reorganized,
     reclassified or exchanged as a result of such event. Such adjustment shall
     be made successively whenever any event listed above shall occur. Any
     adjustment under this subparagraph (a) shall become effective at the close
     of business on the date any such event occurs (the "Adjustment Date").

          (b)  If, during the term of this Agreement, the number of shares of
     Common Stock of the Company is adjusted pursuant to subparagraph (a) above,
     then the Warrant Price per share to be in effect after such Adjustment Date
     shall be determined by multiplying the Warrant Price per share in effect
     immediately prior to such Adjustment Date by a fraction, the numerator of
     which shall be the number of shares of Common Stock outstanding at the
     closing of business on the Business Day immediately preceding such
     Adjustment Date and the denominator of which shall be the number of shares
     of Common Stock (or the equivalent amount of other securities) outstanding
     at the opening of business on the first Business Day after the Adjustment
     Date.

          (c)  Notice of Adjustment. The Company shall give notice of each
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     adjustment or readjustment of the number of shares of Common Stock or other
     securities issuable upon exercise of this Warrant to Holder or of the
     Exercise Price per share at the address set forth in Paragraph 17 hereof.
                                                          ------------

     3.   Expenses of Registration. All expenses incurred in effecting any
          ------------------------
registration pursuant to this Agreement including, without limitation, all
registration and filing fees, expenses of compliance with blue sky laws, fees
and disbursements of counsel for the Company and expenses of any audits
incidental to or required by any such registration, shall be borne by the
Company, except that the costs of prospectus printing and all underwriting
discounts and commissions attributable to Shares being sold by the Holder shall
be borne by the Holder. Without limiting the generality of the foregoing, the
Company shall pay all of the following registration expenses: (a) the Company's
internal expenses (including, without limitation, all salaries and expenses of
its officers and employees performing legal or accounting duties), (b) to the
extent not already incurred, the fees and expenses incurred in connection with
the listing on an exchange, the Nasdaq Stock Market, or inter-dealer quotation
system of the Shares, (c) all registration and filing fees, (d) fees and
expenses of compliance with securities or blue sky laws (including fees and
disbursements of counsel in connection with blue sky qualifications of the
Shares), (e) printing expenses and engraving expenses, (f) fees and
disbursements of counsel to the Company and customary fees and expenses for
independent certified public accounts retained by the Company, and (g) the fees
and expenses of any special experts retained by the Company.

     4.   Notices. Any and all notices, designations, consents, offers,
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acceptances or other communications provided for herein (each a "Notice") shall
be given in writing by overnight courier, telegram or telecopy which shall be
addressed, or sent, to the Company as follows (or such other address as the
Company or the Holder may specify to the Company and all other parties by
Notice).

     XCEL Management Inc.
     1101 Broadway Plaza
     Tacoma, Washington 98402
     Attn: President
     Telecopy: (253) 284-2035

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and to the Holder at

          North American Term Credit Manager

          C/O Hewlett Packard Company

          20 Perimeter Summit Blvd. Mail Stop 506

          Atlanta, GA 30319

All Notices shall be deemed effective and received (a) if given by telecopy,
when the telecopy is transmitted to the telecopy number specified above and
receipt thereof is confirmed; (b) given by overnight courier, on the business
day immediately following the date on which the Notice is delivered to a
reputable overnight courier service; or (c) if given by telegram, when the
Notice is delivered at the address specified above.

     5.   Amendment. The terms of this Agreement may not be amended, modified or
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otherwise revised except by the written consent of the Company and the Holder.

     6.   Counterparts: Facsimile Execution. This Agreement may be executed in
          ---------------------------------
two or more counterparts and each counterpart shall be deemed to be an original
and which counterparts together shall constitute one and the same agreement of
the parties hereto. Each party to this Agreement agrees that it will be bound by
its own telecopy signature and that it accepts the telecopy signature of each
other party to this Agreement.

     7.   Choice of Law. THIS AGREEMENT SHALL BE GOVERNED BY THE INTERNAL LAWS
          -------------
OF THE STATE OF WASHINGTON WITHOUT REGARD TO THE PRINCIPLES OF CONFLICTS OF LAWS
THEREOF AND WILL, TO THE MAXIMUM EXTENT PRACTICABLE, BE DEEMED TO CALL FOR
PERFORMANCE IN PIERCE COUNTY, WASHINGTON.

     8.   Entire Agreement. This Agreement contains the entire understanding of
          ----------------
the parties hereto respecting the subject matter hereof and supersedes all prior
agreements, discussions and understandings with respect thereto.

     9.   Cumulative Rights. The rights of the parties under this Agreement are
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cumulative and in addition to all similar and other rights of the parties under
other agreements.

    10.   Severability and Reformation. If any provision of this Agreement is
          ----------------------------
held to be illegal, invalid or unenforceable under any present or future law,
and if the rights or obligations of the parties under this Agreement would not
be materially and adversely affected thereby, such provision shall be fully
separable, and this Agreement shall be construed and enforced as if such
illegal, invalid or unenforceable provision had never comprised a part thereof,
the remaining provisions of this Agreement shall remain in full force and effect
and shall not be affected by the illegal, invalid or unenforceable provision or
by its severance therefrom, and in lieu of such illegal, invalid or
unenforceable provision, there shall be added automatically as a part of this
Agreement, a legal, valid and enforceable provision as similar in terms to such
illegal, invalid or unenforceable provision as may be possible, and the parties
hereto request the court or any arbitrator to whom disputes relating to this
Agreement are submitted to reform the otherwise illegal, invalid or
unenforceable provision in accordance with this Section 11.

     11.  Indemnification.
          ---------------

          (a)  Indemnification by the Company. The Company will indemnify Holder
               ------------------------------
against any and all claims, losses, damages, and liabilities (or actions in
respect thereof) arising out of or based on any untrue statement (or alleged
untrue statement) of any material fact contained in any prospectus, offering
circular or other document incident to any registration, qualification or
compliance (or in any related registration statement, notification or the like)
or any omission (or alleged omission) to state therein any material fact
required to be stated therein or necessary to make the statements therein not
misleading, or any violation by the Company of any rule or regulation
promulgated under the Securities Act applicable to, and relating to any action
or inaction required of, the

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Company in connection with any such registration, qualification or compliance,
and the Company will reimburse Holder for any legal and any other expenses
reasonably incurred by them in connection with investigating or defending any
such claim, loss, damage, liability or action; provided, however, that the
Company will not be liable in any such case to the extent that any such claim,
loss, damage or liability arises out of or is based on any untrue statement or
omission based upon written information furnished to the Company by Holder for
use in such prospectus, offering circular or other document.

     (b)  Indemnification by Holder. Holder will indemnify the Company and its
          -------------------------
officers and directors and each entity or individual who controls the Company
(within the meaning of the Securities Act) and their respective successors in
title and assigns against any and all claims, losses, damages and liabilities
(or actions in respect thereof) arising out of or based on any untrue statement
(or alleged untrue statement) of any material fact contained in any prospectus,
offering circular or other document incident to any registration, qualification
or compliance (or in any related registration statement, notification or the
like) or any omission (or alleged omission) to state therein any material fact
required to be stated therein or necessary to make the statement therein not
misleading, and Holder will reimburse the Company and its officers, directors,
and controlling entities or individuals for any legal and any other expenses
reasonably by them incurred in connection with investigating or defending any
such claim, loss, damage, liability or action; provided, however, that this
paragraph (b) shall apply only if (and only to the extent that) such statement
or omission was made in reliance upon written information furnished to the
Company is an instrument duly executed by Holder or any of its officers,
directors, or controlling entities or individuals and stated to be specifically
for use in such prospectus, offering circular or other document (or related
registration statement, notification or the like) or any amendment or supplement
thereto.

          (c)  Indemnification Proceedings. Each party entitled to
               ---------------------------
indemnification pursuant to this Section 13 (the "Indemnified Party") shall give
notice to the party required to provide indemnification pursuant to this Section
13 (the "Indemnifying Party") promptly after such Indemnified Party acquires
actual knowledge of any claim as to which indemnity may be sought, and shall
permit the Indemnifying Party (at its expense) to assume the defense of any
claim or any litigation resulting therefrom; provided that counsel for the
Indemnifying Party, who shall conduct the defense of such claim or litigation,
shall be acceptable to the Indemnified Party, and the Indemnified Party may
participate in such defense at such party's expense; and provided, further, that
the failure by any Indemnified Party to give notice as provided in this
paragraph (R) shall not relieve the Indemnifying Party of its obligations under
Section 13 except to the extent that the failure results in a failure of actual
notice to the Indemnifying Party and such Indemnifying Party is damaged solely
as a result of the failure to give notice. No Indemnifying Party, in the defense
of any such claim or litigation, shall, except with the consent of each
Indemnified Party, consent to entry of any judgment or enter into any settlement
which does not include as an unconditional term thereof the giving by the
claimant or plaintiff to such Indemnified Party of a release from all liability
in respect to such claim or litigation. The reimbursement required by this
Section 13 shall be made by periodic payments during the course of the
investigation or defense, as and when bills are received or expenses incurred.

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     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.

          (a)  XCEL MANAGEMENT.INC.
     a Utah corporation

     By:  /s/ JOHN P. GORST
     Name: John P. Gorst
           -------------------------
     Title: Chairman CEO
            ------------------------

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