EXHIBIT 3.8

                                     BY-LAWS

                                       OF

                              NEXGEN FUELING, INC.

                            Adopted December 20, 2000

                                    ARTICLE I

                                     OFFICES

          Section 1. Registered Office. The registered office of the Corporation
shall be in the City of Wilmington, County of New Castle, State of Delaware.

          Section 2. Other Offices. The Corporation may also have offices at
such other places both within and without the State of Delaware as the Board of
Directors may from time to time determine or the business of the Corporation may
require.

                                   ARTICLE II

                                   FISCAL YEAR

          Section 1. Fiscal Year. The fiscal year of the Corporation shall be
such period as the Board of Directors may designate from time to time.

                                   ARTICLE III

                                  STOCKHOLDERS

          Section 1. Annual Meeting. The annual meeting of the stockholders for
the election of Directors, and for the transaction of any other proper business,
shall be held on such date after the annual financial statements of the
Corporation have been prepared as shall be determined by the Board of Directors
from time to time. Upon due notice there may also be considered and acted upon
at an annual meeting any matter which could properly be considered and acted
upon at a special meeting. In the event that the annual meeting is not held on
the date designated therefor in accordance with this Section 1, the Directors
shall cause the annual meeting to be held as soon after that date as convenient.
[211]

          Section 2. Special Meetings. Special meetings of the stockholders may
be called at any time by the Chairman of the Board or the President of the
Corporation, and shall be called by the Chairman of the Board or President at
the request in writing of a majority of the Board of Directors. Calls for
special meetings shall specify the purpose or purposes of the proposed meeting,
and no business shall be considered at any such meeting other than that
specified in the call therefor. [211, 222]

          Section 3. Place of Meetings. All meetings of the stockholders shall
be held at such place, either within or without the State of Delaware, as shall
be designated in the notice of such meeting. [211(a)]



          Section 4. Notice of Meetings and Adjourned Meetings. Written notice
of any meeting of stockholders stating the place, date and hour of the meeting,
and the purpose or purposes for which the meeting is called, shall be given to
each stockholder entitled to vote at such meeting not less than ten (10) nor
more than sixty (60) days before the date of the meeting. When a meeting is
adjourned to another time or place, notice need not be given of the adjourned
meeting if the time and place thereof are announced at the meeting at which the
adjournment is taken. At the adjourned meeting the Corporation may transact any
business which might have been transacted at the original meeting. If the
adjournment is for more than thirty (30) days, or if after the adjournment a new
record date is fixed for the adjourned meeting, a notice of the adjourned
meeting shall be given to each stockholder of record entitled to vote at the
meeting. [222]

          Section 5. Stockholders' List. The officer who has charge of the stock
ledger of the Corporation shall prepare and make, at least ten (10) days before
every meeting of stockholders, a complete list of the stockholders entitled to
vote at the meeting, arranged in alphabetical order, and showing the address of
each stockholder and the number of shares registered in the name of each
stockholder. Such list shall be open to the examination of any stockholder, for
any purpose germane to the meeting, during ordinary business hours, for a period
of at least ten (10) days prior to the meeting, either at a place within the
city where the meeting is to be held, which place shall be specified in the
notice of the meeting, or, if not so specified, at the place where the meeting
is to be held. The list shall also be produced and kept at the time and place of
the meeting during the whole time thereof, and may be inspected by any
stockholder who is present. [219(a)]

          Section 6. Quorum. At any meeting of the stockholders, except as
otherwise provided by the Delaware General Corporation Law, a majority of the
shares entitled to vote thereat, present in person or represented by proxy,
shall constitute a quorum for the transaction of business; provided, that no
action required by the Certificate of Incorporation or these By-laws to be
authorized or taken by a designated proportion of shares may be authorized or
taken by a lesser proportion; provided, further, that where a separate vote by a
class or classes of shares is required by law, the Certificate of Incorporation
or these By-laws, a majority of the outstanding shares of such class or classes,
present in person or represented by proxy, shall constitute a quorum entitled to
take action with respect to that vote. If such quorum shall not be present or
represented by proxy at any meeting of the stockholders, the stockholders
present in person or represented by proxy shall have power to adjourn the
meeting from time to time, without notice other than announcement at the
meeting, until a quorum shall be present or represented by proxy. [216]

          Section 7. Voting. In all matters other than the election of Directors
and other than any matters upon which by express provision of the Certificate of
Incorporation or of these By-laws a different vote is required, the vote of a
majority of the shares entitled to vote on the subject matter and present in
person or represented by proxy at the meeting shall be the act of the
stockholders. Directors shall be elected by a plurality of the votes of the
shares entitled to vote on the election of Directors and present in person or
represented by proxy at the meeting. Except as otherwise provided in the
Certificate of Incorporation, each stockholder entitled to vote at any meeting
of the stockholders or to express consent or dissent to corporate action in
writing without a meeting shall be entitled to one vote for each share of
capital stock held by such stockholder. [216, 212(a)]



          Section 8. Proxies. Each stockholder entitled to vote at a meeting of
the stockholders, or to express consent or dissent to corporate action without a
meeting, may authorize another person or persons to act for him by proxy. No
such proxy shall be voted or acted upon after three (3) years from its date,
unless the proxy provides for a longer period. [212(b)]

          Section 9. Action of Stockholders Without a Meeting. Any action
required or permitted to be taken, whether by any provision of the Delaware
General Corporation Law or of the Certificate of Incorporation, at any annual or
special meeting of stockholders of the Corporation may be taken without a
meeting, without prior notice and without a vote, if a consent or consents in
writing, setting forth the action so taken, shall be signed by the holders of
outstanding stock having not less than the minimum number of votes that would be
necessary to authorize or take such action at a meeting at which all shares
entitled to vote thereon were present and voted and shall be delivered to the
Corporation, at its registered office or its principal place of business, or to
an officer or agent of the Corporation having custody of the stockholders'
minute book of the Corporation. Every written consent shall bear the date of
signature of each stockholder who signs the consent and no written consent shall
be effective unless, within sixty (60) days of the earliest dated consent
delivered in the manner provided above to the Corporation, written consents
signed by a sufficient number of stockholders to take the action are delivered
in the manner provided above to the Corporation. Prompt notice of the taking of
the corporate action without a meeting by less than unanimous written consent
shall be given to those stockholders who have not consented in writing. [228(a),
(c) and (d)]

                                   ARTICLE IV

                               BOARD OF DIRECTORS

          Section 1. General Powers. The business and affairs of the Corporation
shall be managed by or under the direction of a Board of Directors, except as
may be otherwise provided in the Delaware General Corporation law or in the
Certificate of Incorporation. [141(a)]

          Section 2. Number of Directors. The number of Directors which shall
constitute the whole Board shall be not less than one, and the number of
Directors elected at any meeting of stockholders shall be deemed to be the
number of Directors constituting the whole Board unless otherwise fixed by
resolution adopted at such meeting. Directors may, but need not, be
stockholders. [141(b)]

          Section 3. Election of Directors. The Directors shall be elected at
the annual meeting of stockholders, or if not so elected, at a special meeting
of stockholders called for that purpose. At any meeting of stockholders at which
Directors are to be elected, only persons nominated as candidates shall be
eligible for election, and the Directors shall be elected by a plurality of the
votes of the shares present in person or represented by proxy at the meeting and
entitled to vote on the election of Directors. [211, 216]

          Section 4. Removal; Vacancies. Any Director or the entire Board of
Directors may be removed, with or without cause, at any time by the affirmative
vote of the holders of record of a majority of the outstanding shares entitled
to vote in the election of Directors. The vacancy or vacancies in the Board of
Directors caused by any such removal may be filled by the



stockholders, or if not so filled, by a majority of the Board of Directors
remaining in office (although less than a quorum) or by the sole remaining
Director. [141(k), 223(a)]

          Section 5. Resignation; Vacancies. Any Director may resign at any time
upon written notice to the Corporation. A resignation from the Board of
Directors shall be deemed to take effect immediately upon receipt of such notice
or at such other time as the Director may specify in such notice. When one or
more Directors shall resign from the Board, effective at a future date, a
majority of the Directors then in office, including those who have so resigned,
shall have the power to fill such vacancy or vacancies, the vote thereon to take
effect when such resignation or resignations shall become effective. If a
Director dies, a majority of the Directors remaining in office (although less
than a quorum), or the sole remaining Director, shall have the power to fill
such vacancy. Each Director so chosen to fill a vacancy shall hold office until
the next election of Directors, and until his successor shall be elected and
qualified, or until his earlier resignation or removal. [141(b), 223(d)]

          Section 6. Annual Meeting. Immediately following each annual meeting
of stockholders for the election of Directors, the Board of Directors may meet
for the purpose of organization, the election of officers and the transaction of
other business at the place where the annual meeting of stockholders for the
election of Directors is held. Notice of such meeting need not be given. Such
meeting may be held at any other time or place which shall be specified in a
notice given as hereinafter provided for special meetings of the Board of
Directors or in a consent and waiver of notice thereof signed by all of the
Directors.

          Section 7. Regular Meetings. Regular meetings of the Board of
Directors may be held at such places (within or without the State of Delaware)
and at such times as the Board shall by resolution determine. If any day fixed
for a regular meeting shall be a legal holiday at the place where the meeting is
to be held, then the meeting which would otherwise be held on that day shall be
held at such place at the same hour and on the next succeeding business day not
a legal holiday. Notice of regular meetings need not be given.

          Section 8. Special Meetings. Special meetings of the Board of
Directors shall be held whenever called by the Chairman of the Board, President
or by any two of the Directors. Notice of each such meeting shall be mailed to
each Director, addressed to him at his residence or usual place of business, at
least three (3) days before the day on which the meeting is to be held, or shall
be sent to him by telegram or cablegram so addressed, or shall be delivered
personally or by telephone or telecopy, at least twenty-four (24) hours before
the time the meeting is to be held. Each such notice shall state the time and
place (within or without the State of Delaware) of the meeting but need not
state the purposes thereof, except as otherwise required by the Delaware General
Corporation Law or by these By-laws.

          Section 9. Quorum; Voting; Adjournment. Except as otherwise provided
by the Certificate of Incorporation or by these By-laws, a majority of the total
number of Directors shall constitute a quorum for the transaction of business at
any meeting, and the vote of a majority of the Directors present at a meeting at
which a quorum is present shall be the act of the Board of Directors. In the
absence of a quorum, the Director or Directors present at any meeting may
adjourn such meeting from time to time until a quorum shall be present. Notice
of any adjourned meeting need not be given. [141(b)]



          Section 10. Telephone Communications. Members of the Board of
Directors, or of any committee thereof, may participate in a meeting of such
board or committee by means of conference telephone or similar communications
equipment by means of which all persons participating in the meeting can hear
each other, and participation in a meeting pursuant to this Section 10 shall
constitute presence in person at such meeting. [141(i)]

          Section 11. Action of Directors Without a Meeting. Any action required
or permitted to be taken at any meeting of the Board of Directors, or of any
committee thereof, may be taken without a meeting if all members of the Board or
such committee, as the case may be, consent thereto in writing and such written
consent or consents are filed with the minutes of proceedings of the Board or
such committee. [141(f)]

          Section 12. Compensation. Directors, as such, shall not receive any
stated salary for their services, but by resolution of the Board of Directors a
fixed sum and expenses of attendance, if any, may be allowed for attendance at
any meeting of the Board or of any committee thereof. Nothing herein contained
shall be construed so as to preclude any Director from serving the Corporation
in any other capacity, or from serving any of its stockholders, subsidiaries or
affiliated corporations in any capacity, and receiving compensation therefor.
[141(h)]

          Section 13. Committees. The Board of Directors may, by resolution
passed by a majority of the whole Board, designate one or more committees, each
committee to consist of two or more of the Directors of the Corporation. The
Board may designate one or more Directors as alternate members of any committee,
who may replace any absent or disqualified member at any meeting of the
committee. In the absence or disqualification of a member of a committee, the
member or members thereof present at any meeting and not disqualified from
voting, whether or not he or they constitute a quorum, may unanimously appoint
another member of the Board of Directors to act at the meeting in the place of
any such absent or disqualified member. Subject to the limitations of Section
141(c) of the Delaware General Corporation Law, as amended from time to time (or
of any successor thereto, however denominated), any such committee, to the
extent provided in the Board resolution, shall have and may exercise 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 (if
any) to be affixed to all papers which may require it. Such committee or
committees shall have such name or names as may be determined from time to time
by resolution adopted by the Board of Directors. Each committee shall keep
regular minutes of its meetings and report the same to the Board of Directors
when required. [141(c)]

                                    ARTICLE V

                                     NOTICES

          Section 1. Notices. Whenever, under the provisions of the Delaware
General Corporation Law or of the Certificate of Incorporation or these By-laws,
notice is required to be given to any Director or stockholder, it shall not be
necessary that personal notice be given, and such notice may be given in
writing, by mail, addressed to such Director or stockholder, at his address as
it appears on the records of the Corporation or at his residence or usual place
of business, with postage thereon prepaid, and such notice shall be deemed to be
given at the time



when the same shall be deposited in the United States mail. Notice to Directors
may also be given by telegram or cablegram, and such notice shall be deemed to
be given when the same shall be filed, or in person or by telephone or telecopy,
and such notice shall be deemed to be given when the same shall be delivered.

          Section 2. Waiver of Notice. Whenever any notice is required to be
given under any provision of the Delaware General Corporation Law or of the
Certificate of Incorporation or these By-laws, a written waiver thereof, signed
by the person or persons entitled to said notice, whether before or after the
time stated therein, shall be deemed equivalent to notice. Attendance of a
person at a meeting shall constitute a waiver of notice of such meeting, except
when the person attends a meeting for the express purpose of objecting, at the
beginning of the meeting, to the transaction of any business because the meeting
is not lawfully called or convened. [229]

                                   ARTICLE VI

                                    OFFICERS

          Section 1. Officers. The officers of the Corporation shall be a
President, a Secretary, a Treasurer and, if the Board of Directors shall so
determine, or as may be deemed necessary by the Board from time to time, a
Chairman of the Board, a Vice Chairman of the Board, one or more Vice Presidents
and other officers and assistant officers. Any number of offices may be held by
the same person. [142(a)]

          Section 2. Election of Officers. Each officer of the Corporation shall
be elected by the Board of Directors and shall hold office at the pleasure of
the Board of Directors until his successor has been elected or until his earlier
resignation or removal. [142(b)]

          Section 3. Resignation. Any officer may resign at any time by giving
written notice of his resignation to the Corporation. Any such resignation shall
take effect immediately upon receipt of such notice or at such other time
specified in such notice. Unless otherwise specified in such notice, the
acceptance of such resignation by the Corporation shall not be necessary to make
it effective. [142(b)]

          Section 4. Removal. Any officer may be removed at any time, either
with or without cause, by action of the Board of Directors.

          Section 5. Vacancies. A vacancy in any office because of death,
resignation, removal or any otherwise shall be filled by the Board of Directors.
[141(e)]

          Section 6. Powers and Duties. All officers, as between themselves and
the Corporation, shall have such authority and perform such duties as are
customarily incident to their respective offices, and as may be specified from
time to time by the Board of Directors, regardless of whether such authority and
duties are customarily incident to such office. In the absence of any officer of
the Corporation, or for any other reason the Board of Directors may deem
sufficient, the Board of Directors may delegate for the time being the powers or
duties of such officer, or any of them, to any other officer or to any Director.
The Board of Directors may from time to time delegate to any officer the
authority to appoint and remove subordinate officers and to prescribe their
authority and duties.


          Section 7. Compensation. The compensation of the officers shall be
fixed from time to time by the Board of Directors or, if delegated by the Board,
by the President or Chairman of the Board. Any such decision by the President or
Chairman of the Board shall be final unless expressly overruled or modified by
action of the Board of Directors, in which event such action of the Board of
Directors shall be conclusive of the matter. Nothing contained herein shall
preclude any officer from serving the Corporation in any other capacity,
including that of Director, or from serving any of its stockholders,
subsidiaries or affiliated corporations in any capacity, and receiving a proper
compensation therefor.

                                   ARTICLE VII

          INDEMNIFICATION OF DIRECTORS, OFFICERS, EMPLOYEES AND AGENTS

          Section 1. Indemnification. The Corporation shall indemnify any person
who is or was a Director or officer of the Corporation, or is or was serving at
the request of the Corporation as a director or officer of another corporation,
partnership, joint venture, trust or other enterprise, to the full extent
permitted by Section 145 of the Delaware General Corporation Law, as amended
from time to time (or by any successor thereto, however denominated). The
Corporation may, if the Board of Directors should determine to do so by
resolution adopted by a majority of the whole Board, indemnify any person who is
or was an employee or agent (other than a Director or officer) of the
Corporation, or is or was serving at the request of the Corporation as an
employee or agent (other than a director or officer) of another corporation,
partnership, joint venture, trust or other enterprise, to the full extent
permitted by such Section 145. This Section 1 shall be interpreted in all
respects to expand such power to indemnify to the maximum extent permissible to
any Delaware corporation with regard to the particular facts of each case, and
not in any way to limit any statutory or other power to indemnify, or any right
of any individual to indemnification. [145]

          Section 2. Insurance for Indemnification. The Corporation may purchase
and maintain insurance for protection of any person who is or was a Director,
officer, employee or agent of the Corporation, or is or was serving at the
request of the Corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, to the full
extent permitted by Section 145 of the Delaware General Corporation Law, as
amended from time to time (or by any successor thereto, however denominated).
[145(g)]

                                  ARTICLE VIII

                          LOANS, CHECKS, DEPOSITS, ETC.

          Section 1. General. All checks, drafts, bills of exchange or other
orders for the payment of money, issued in the name of the Corporation, shall be
signed by such person or persons and in such manner as may from time to time be
designated by the Board of Directors, which designation may be general or
confined to specific instances.

          Section 2. Loans and Evidences of Indebtedness. No loan shall be
contracted on behalf of the Corporation, and no evidence of indebtedness shall
be issued in its name, unless authorized by the Board of Directors. Such
authorization may be general or confined to specific instances. Loans so
authorized by the Board of Directors may be effected at any time for the



Corporation from any bank, trust company or other institution, or from any firm,
corporation or individual. All bonds, debentures, notes and other obligations or
evidences of indebtedness of the Corporation issued for such loans shall be
made, executed and delivered as the Board of Directors shall authorize. When so
authorized by the Board of Directors, any part of or all the properties,
including contract rights, assets, business or good will of the Corporation,
whether then owned or thereafter acquired, may be mortgaged, pledged,
hypothecated or conveyed or assigned in trust as security for the payment of
such bonds, debentures, notes and other obligations or evidences of indebtedness
of the Corporation, and of the interest thereon, by instruments executed and
delivered in the name of the Corporation.

          Section 3. Banking. All funds of the Corporation not otherwise
employed shall be deposited from time to time to the credit of the Corporation
in such banks, trust companies or other depositaries as the Board of Directors
may authorize. The Board of Directors may make such special rules and
regulations with respect to such bank accounts, not inconsistent with the
provisions of these By-laws, as it may deem expedient. For the purpose of
deposit and for the purpose of collection for the account of the Corporation,
checks, drafts and other orders for the payment of money which are payable to
the order of the Corporation shall be endorsed, assigned and delivered by such
person or persons and in such manner as may from time to time be authorized by
the Board of Directors.

          Section 4. Securities Held By The Corporation. Unless otherwise
provided by resolution adopted by the Board of Directors, the President or the
Chairman of the Board may from time to time appoint an attorney or attorneys, or
an agent or agents, to exercise in the name and on behalf of the Corporation the
powers and rights to vote or consent which the Corporation may have as the
holder of stock or other securities in any other corporation; and the President
or Chairman of the Board may instruct the person or persons so appointed as to
the manner of exercising such powers and rights; and the President and Chairman
of the Board may execute or cause to be executed in the name and on behalf of
the Corporation and under its corporate seal (if any), or otherwise, all such
written proxies, powers of attorney or other written instruments as he may deem
necessary in order that the Corporation may exercise such powers and rights.

                                   ARTICLE IX

                            SHARES AND THEIR TRANSFER

          Section 1. Share Certificates. Every holder of stock represented by
certificates shall be entitled to have a certificate signed by, or in the name
of the Corporation by the President, a Vice President or the Chairman of the
Board and by the Treasurer, an Assistant Treasurer, the Secretary or an
Assistant Secretary of the Corporation, representing the number of shares
registered in certificate form. Any or all of the signatures on the certificate
may be a facsimile. [158]

          Section 2. Lost, Stolen or Destroyed Certificates. The Board of
Directors may direct a new certificate or certificates to be issued in place of
any certificate or certificates theretofore issued by the Corporation alleged to
have been lost, stolen or destroyed, upon the making of an affidavit of that
fact by the person claiming the certificate for stock to be lost, stolen or
destroyed. When authorizing such issue of a new certificate or certificates, the
Board of Directors may, in its discretion and as a condition precedent to the
issuance thereof, require



the owner of such lost, stolen or destroyed certificate or certificates, or his
legal representative, to advertise the same in such manner as it shall require
and/or to give the Corporation a bond in such sum as it may direct as indemnity
against any claim that may be made against the Corporation with respect to the
certificate or certificates alleged to have been lost, stolen or destroyed.
[167]

          Section 3. Transfers. Upon surrender to the Corporation or the
transfer agent of the Corporation of a certificate for shares duly endorsed or
accompanied by proper evidence of succession, assignment or authority to
transfer, it shall be the duty of the Corporation to issue a new certificate to
the person entitled thereto, cancel the old certificate and record the
transaction upon its books.

          Section 4. Record Dates. In order that the Corporation may determine
the stockholders entitled to notice of or to vote at any meeting of stockholders
or any adjournment thereof, or to express consent or dissent to corporate action
in writing without a meeting, or to receive payment of any dividend or other
distribution or allotment of any rights, or to exercise any rights in respect of
any change, conversion or exchange of stock or for the purpose of any other
lawful action, the Board of Directors may fix a record date, which record date
shall not precede the date upon which the resolution fixing such record date is
adopted by the Board of Directors. In the case of (A) a meeting, such record
date also shall not be more than sixty (60) nor less than ten (10) days before
the date of such meeting; (B) a consent or dissent to corporate action in
writing without a meeting, such record date also shall not be more than ten (10)
days after the date upon which such resolution is adopted by the Board of
Directors; or (C) the payment of any dividend or other distribution, allotment
of any rights, exercise of any rights in respect of any change, conversion or
exchange of stock or any other lawful action, such record date also shall not be
more than sixty (60) days prior to such action. A determination of stockholders
of record entitled to notice of or to vote at a meeting of stockholders shall
apply to any adjournment of the meeting; provided, however, that the Board of
Directors may fix a new record date for the adjourned meeting. [213]

          Section 5. Protection of Corporation. The Corporation shall be
entitled to recognize the exclusive right of a person registered on its books as
the owner of shares to receive dividends, and to vote as such owner, and to hold
liable for calls and assessments a person registered on its books as the owner
of shares, and shall not be bound to recognize any equitable or other claim to
or interest in such share or shares on the part of any other person, whether or
not it shall have express or other notice thereof, except as otherwise provided
by the laws of Delaware.

                                    ARTICLE X

                                 CORPORATE SEAL

          The Corporation may adopt a corporate seal which, if adopted, shall
have inscribed thereon the name of the Corporation, the year of its organization
and the words "Corporate Seal, Delaware". The seal may be used by causing it or
a facsimile thereof to be impressed or affixed or reproduced or otherwise.
[122(3)]



                                   ARTICLE XI

                                EMERGENCY BY-LAWS

          The Board of Directors may adopt, either before or during an
emergency, as that term is defined by the Delaware General Corporation Law, any
emergency by-laws permitted by the Delaware General Corporation Law which shall
be operative only during such emergency. In the event the Board of Directors
does not adopt any such emergency by-laws, the special rules provided in the
Delaware General Corporation Law shall be applicable during an emergency as
therein defined. [110]

                                   ARTICLE XII

                                SECTION HEADINGS

          The headings contained in these By-laws are for reference purposes
only and shall not be construed to be part of and shall not affect in any way
the meaning or interpretation of these By-laws.

                                  ARTICLE XIII

                                   AMENDMENTS

          These By-laws may be amended or repealed at any meeting of the
stockholders or by the Board of Directors. [109]