EXHIBIT 5.1

                        [Letterhead of Andrews Kurth LLP]

                                December 22, 2003

Cheniere Energy, Inc.
333 Clay Street, Suite 3400
Houston, Texas 77002

Gentlemen:

     We have acted as special counsel to Cheniere Energy, Inc., a Delaware
corporation (the "Company"), Cheniere LNG Services, Inc. a Delaware corporation
("LNG Services"), Cheniere LNG, Inc., a Delaware corporation ("LNG"), Cheniere
Energy Operating Co., Inc., a Delaware corporation ("Operating Co.") and
Cheniere-Gryphon Management, Inc., a Delaware corporation ("Gryphon," and
together with LNG Services, LNG and Operating Co., the "Guarantors," and
collectively with LNG Services, LNG, Operating Co. and the Company, the
"Companies"), in connection with the preparation of a registration statement on
Form S-3 (the "Registration Statement") filed with the Securities and Exchange
Commission (the "Commission") pursuant to the Securities Act of 1933, as amended
(the "Act"). The Registration Statement relates to the offering from time to
time, as set forth in the Registration Statement, the form of prospectus
contained therein (the "Prospectus") and one or more supplements to the
Prospectus (each, a "Prospectus Supplement"), of, among other securities (A) by
the Company of (i) shares of its common stock ("Common Shares"), (ii) shares of
its preferred stock ("Preference Shares"), (iii) its senior and subordinated
debt securities ("Debt Securities"), (iv) warrants to purchase debt or equity
securities of the Company ("Warrants") and (v) units consisting of one or more
Warrants, Debt Securities, Guarantees, Preference Shares, Common Shares or any
combination of such securities ("Units") and (B) by each Guarantor of guarantees
of Debt Securities ("Guarantees"), having an aggregate initial public offering
price (for all such securities referred to in the foregoing clauses (A) and (B))
not to exceed U.S. $20,000,000, on terms to be determined at the time of the
offering. The Debt Securities, Preference Shares, Warrants and Units may be
convertible into or exercisable for Common Shares. The Common Shares, Preference
Shares, Debt Securities, Guarantees, Warrants and Units are collectively
referred to herein as the "Securities." All capitalized terms which are not
defined herein shall have the meanings assigned to them in the Registration
Statement or in the applicable Indenture (as defined below), as the case may be.

     The Debt Securities and the Guarantees will be issued pursuant to (i) a
senior indenture (the "Senior Indenture"), or (ii) a subordinated indenture (the
"Subordinated Indenture" and, collectively with the Senior Indenture, the
"Indentures"), each to be entered into by the Company, each of the Guarantors,
as guarantor, and a financial institution to be named therein, as trustee (the
"Trustee"), substantially in the forms attached as Exhibits 4.14 and 4.15 to the
Registration Statement, and each as the same may hereafter be supplemented from
time to time, among other things at the time of and in connection with the
issuance of the Debt Securities and any Guarantees.

     The Warrants will be issued pursuant to a warrant agreement (the "Warrant
Agreement") between the Company and a warrant agent.

     In arriving at the opinions expressed below, we have examined (i) the
certificate of incorporation and bylaws of each of the Companies, (ii) the
Registration Statement, (iii) the Prospectus, (iv) the form of Senior Indenture
and the form of Subordinated Indenture, and (v) originals or copies certified or
otherwise identified to our satisfaction of such other instruments and other
certificates of public officials, officers and representatives of the Companies
and such other persons, and we have made such investigations of law, as we have
deemed appropriate as a basis for the opinions expressed below.

     In rendering the opinions expressed below, we have assumed and have not
verified (i) the genuineness of the signatures on all documents that we have
examined, (ii) the legal capacity of all natural persons, (iii) the authenticity
of all documents supplied to us as originals and (iv) the conformity to the
authentic originals of all documents supplied to us as certified or photostatic
or faxed copies. In conducting our examination of documents, we have assumed the
power, corporate or other, of all parties thereto other than the Companies to
enter into and perform all obligations thereunder and have also assumed the due
authorization by all requisite action, corporate or other, and the due execution
and delivery by such parties of such documents and that, except as set forth in
the numbered opining paragraphs below in respect of the Companies with respect
to the instruments therein referred to, to the


extent such documents purport to constitute agreements, such documents
constitute valid and binding obligations of such parties.

     In rendering the opinions expressed in paragraphs 2 through 5 below with
respect to the Securities therein referred to, we have assumed that:

     (i) any supplemental indenture to any of the Indentures and any Board
Resolution and/or Officer's Certificate executed and delivered pursuant to any
of the Indentures, in any such case, pursuant to which any Debt Securities and
Guarantees are established and issued, will comply with such Indenture as
theretofore supplemented, and the form and terms of such Debt Securities and
Guarantees will comply with such Indenture as then supplemented (including by
such supplemental indenture) and any such Board Resolution and/or Officer's
Certificate;

     (ii) the form and terms of such Debt Securities, when established, the form
and terms of any Guarantees, the form and terms of any Warrants or Units, and
the form and terms of any and all Securities or other securities or obligations
comprising the same or subject thereto (in the case of the Units and Warrants),
the issuance, sale and delivery thereof by the applicable Company, and its
incurrence and performance of its obligations thereunder or in respect thereof
(including, without limitation, its obligations under any related Indenture,
Warrant Agreement or unit agreement) in accordance with the terms thereof, will
be in full compliance with, and will not violate, the certificate of
incorporation or bylaws of any of the Companies, or any applicable law, rule,
regulation, order, judgment, decree, award, or agreement binding upon any of the
Companies, or to which the issuance, sale and delivery of such Securities, or
the incurrence and performance of such obligations, may be subject, or violate
any applicable public policy, or be subject to any defense in law or equity, and
(without limiting the generality of the foregoing) Section 5-501.6.b of the New
York General Obligations Law will apply in the case of all such Debt Securities
and Guarantees. In addition, we have assumed the receipt by each person to whom
or for whose benefit a Security is to be issued (collectively, the "Beneficial
Holders") of a certificate for such Security or the receipt by The Depository
Trust Company, acting as agent, on behalf of all Beneficial Holders of the class
or series of Securities of which such Security is one, of a global security then
evidencing such Securities, and the issuance and sale of and payment for the
Securities so acquired, in accordance with the applicable purchase, underwriting
or similar agreement approved by the board of directors of the Company, LNG
Services, LNG, Operating Co. and/or Gryphon, as applicable, and the Registration
Statement (including the Prospectus and the applicable Prospectus Supplement);

     (iii) the Trustee for the holders of Debt Securities and Guarantees
outstanding under any Indenture will have its chief executive office and the
principal corporate trust office (from which the trusts established by such
Indenture will be administered) located in the State of New York;

     (iv) (A) at the time of execution, authentication, issuance and delivery of
the Indentures, Debt Securities and Guarantees, the Indentures will have been
duly authorized, executed and delivered by each of the Companies in accordance
with their respective charters and bylaws and the applicable laws of the United
States, the State of New York and the General Corporation Law of the State of
Delaware (the "DGCL"), (B) the execution, delivery and performance by each of
the Companies of the Indentures, the Debt Securities and any Guarantees issued
by it will not violate the laws of New York or other applicable laws and (C) the
execution, delivery and performance by each of the Companies of the Indentures,
the Debt Securities, and any Guarantees issued by it, will not constitute a
breach or a violation of any agreement or instrument which is binding on any of
the Companies;

     (v) each of the Companies is and at all times material hereto will be a
corporation duly organized and validly existing under the DGCL;

     (vi) the person appointed as the process agent for each of the Companies as
issuer or guarantor under each Indenture will accept its appointment as such
before the execution and delivery of any of the Debt Securities or any
Guarantees pursuant to such Indenture;

     (vii) the certificate of incorporation and bylaws of the Company will not
have been amended in any manner that would affect any legal conclusion set forth
herein, and any certificate of designation in respect of Preference Shares
("Certificate of Designation") will be in conformity therewith and with
applicable law; and

     (viii) the consideration paid for any Common Shares or Preference Shares
will comply with applicable provisions of the Delaware General Corporation Law,
and the Delaware Constitution regarding the form and amount of consideration for
valid issuance of capital stock.


     Based upon and subject to the foregoing, and subject also to the
limitations and other assumptions and qualifications set forth below, we are of
the opinion that:

     1. With respect to any Common Shares or Preference Shares, when (a) the
Company has taken all necessary action to authorize and approve the issuance of
such Common Shares and Preference Shares and the terms of any such Preference
Shares, the terms of the offering thereof and related matters, and (b) such
Common Shares and Preference Shares, as applicable, have been duly executed,
issued and delivered in accordance with the terms of the applicable definitive
purchase, underwriting or similar agreement approved by the board of directors
of the Company, upon payment (or delivery) of the consideration therefor
provided therein, such Common Shares and Preference Shares (including (A) any
Common Shares duly issued (x) upon the exchange or conversion of any Preference
Shares that are exchangeable or convertible into Common Shares, (y) upon the
exercise of any Warrants exercisable for Common Shares, and (z) upon the
conversion or exchange of any Debt Securities that are convertible or
exchangeable into Common Shares and (B) any Preference Shares duly issued (y)
upon the exercise of any Warrants exercisable for Preference Shares, and (z)
upon the conversion or exchange of any Debt Securities that are convertible or
exchangeable into Preference Shares), as applicable, will be validly issued,
fully paid and nonassessable.

     2. With respect to any series of Debt Securities to be issued under an
Indenture, when (a) the applicable supplement, if any, to such Indenture has
been duly authorized and validly executed and delivered by the Company, as
issuer, the Guarantors, as guarantors, and the Trustee, or the applicable Board
Resolution has been duly authorized and validly executed and delivered by the
Company, or the applicable Officer's Certificate has been validly executed and
delivered by a duly authorized officer of the Company, in each case, in
accordance with the terms of such Indenture, (b) such Indenture, as then and
theretofore supplemented, has been duly qualified under the Trust Indenture Act
of 1939, as amended (the "Trust Indenture Act"), (c) the Company has taken all
necessary corporate action to approve the issuance and terms of such series of
Debt Securities, the terms of the offering thereof and related matters, and (d)
the Debt Securities of such series have been duly executed, authenticated,
issued and delivered in accordance with the terms of such Indenture (as then
supplemented) and the applicable definitive purchase, underwriting or similar
agreement approved by the Company's board of directors, upon payment (or
delivery) of the consideration therefor provided for therein, such Debt
Securities will be validly issued and will constitute valid and legally binding
obligations of the Company.

     3. With respect to Warrants to be issued under a Warrant Agreement, when
(a) the Company has taken all necessary action to approve the issuance and terms
of such Warrants, the terms of the offering thereof and related matters, (b) the
Warrant Agreement has been duly authorized and validly executed and delivered by
the Company and the warrant agent under the Warrant Agreement and (c) such
Warrants have been duly executed, issued and delivered in accordance with the
terms of the Warrant Agreement and the applicable definitive purchase,
underwriting or similar agreement approved by the board of directors of the
Company, upon payment (or delivery) of the consideration therefor provided for
therein, such Warrants will constitute valid and legally binding obligations of
the Company.

     4. With respect to the Units, assuming (a) the taking of all necessary
corporate action to authorize and approve (i) the issuance and terms of the
Units, (ii) the issuance and terms of any Warrants which are a component of the
Units, the terms of the offering thereof and related matters, and the execution
and delivery of any related Warrant Agreement, (iii) the issuance and terms of
any applicable series of any Debt Securities which are a component of the Units,
the terms of the offering thereof and related matters, and the execution and
delivery of the applicable Indenture and any applicable supplemental indenture
or Board Resolution or Officer's Certificate and (iv) the issuance and terms of
any Preference Shares or Common Shares which are a component of the Units, the
terms of the offering thereof and related matters, and (b) due execution and
delivery by all parties thereto and due authentication, in the case of the
applicable series of Debt Securities, and issuance of (i) the applicable Units,
(ii) such Warrants and Warrant Agreement, (iii) such series of Debt Securities
and Indenture (and qualification of such Indenture under the Trust Indenture
Act) and any applicable supplemental indenture or Board Resolution or Officer's
Certificate and (iv) such Preference Shares and Common Shares, in each case upon
payment of the consideration therefor provided for in the applicable definitive
purchase, underwriting or similar agreement approved by the board of directors
of the Company and otherwise in accordance with the provisions of the applicable
Warrant Agreement, in the case of the Warrants, the applicable Indenture and any
applicable supplemental indenture or Board Resolution or Officer's Certificate,
in the case of a series of Debt Securities, or the Company's certificate of
incorporation and bylaws, in the case of such Preference Shares and Common
Shares, such Units will constitute valid and legally binding obligations of the
Company.


     5. With respect to the Guarantees, assuming the (a) taking of all necessary
corporate action by the Companies to authorize and approve the issuance and
terms of the Guarantees and the Debt Securities to which they pertain, the terms
of the offering thereof and related matters, (b) applicable Indenture as then
and theretofore supplemented, pursuant to which the Guarantees will be issued,
has been qualified under the Trust Indenture Act and (c) due execution, issuance
and delivery of such Debt Securities and due execution and delivery of such
Guarantees in each case in accordance with the terms of the applicable Indenture
(as supplemented) and the applicable purchase, underwriting or similar agreement
and payment (or delivery) of the consideration therefore provided for therein,
such Guarantees will constitute valid and legally binding obligations of the
applicable Guarantor.

     Each of the opinions above is subject to applicable bankruptcy, insolvency
(including, without limitation all laws relating to fraudulent transfer or
conveyance), reorganization, moratorium and other similar laws affecting
creditors' rights generally and to general principles of equity (regardless of
whether considered in a proceeding in equity or at law) including, without
limitation, (a) the possible unavailability of specific performance, injunctive
relief or any other equitable remedy, (b) concepts of materiality,
reasonableness, conscionability, good faith and fair dealing and (c) the
discretion of a court sitting in equity, and we express no opinions herein with
respect to provisions relating to severability or separability. The opinions
expressed above are also subject to possible judicial action giving effect to
governmental actions or foreign laws affecting creditors' rights.

     This opinion is expressed as of the date hereof, and we disclaim any
undertaking to advise you of any subsequent changes in applicable law, and we
have assumed that at no future time would any such subsequent change of fact or
law affect adversely our ability to render at such time an opinion (a)
containing the same legal conclusions set forth herein and (b) subject only to
such (or fewer) assumptions, limitations and qualifications as are contained
herein.

     We express no opinion other than as to the laws of the States of New York
and Delaware and, to the extent relevant, the federal laws of the United States
of America. We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to this firm under the heading
"Legal Matters" in the Prospectus. In giving this consent we do not admit that
we are "experts" under the Act, or the rules and regulations of the Commission
issued thereunder, with respect to any part of the Registration Statement,
including this exhibit.

                                       Very truly yours,

                                       /s/ Andrews Kurth LLP

                                       Andrews Kurth LLP