1
                                                                EXHIBIT 25.1


      THIS CONFORMING PAPER FORMAT DOCUMENT IS BEING SUBMITTED PURSUANT TO
                          RULE 901(d) OF REGULATION S-T

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                                    FORM T-1

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            STATEMENT OF ELIGIBILITY
                   UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

                      CHECK IF AN APPLICATION TO DETERMINE
                      ELIGIBILITY OF A TRUSTEE PURSUANT TO
                             SECTION 305(b)(2) |__|



                              THE BANK OF NEW YORK
               (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)

NEW YORK                                                 13-5160382
(STATE OF INCORPORATION                                  (I.R.S. EMPLOYER
IF NOT A U.S. NATIONAL BANK)                             IDENTIFICATION NO.)

48 WALL STREET, NEW YORK, N.Y.                           10286
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                 (ZIP CODE)


                             GIANT INDUSTRIES, INC.
                          GIANT INDUSTRIES ARIZONA,INC.
                     GIANT EXPLORATION & PRODUCTION COMPANY
                       GIANT STOP-N-GO OF NEW MEXICO, INC.
                            SAN JUAN REFINING COMPANY
                            CINIZA PRODUCTION COMPANY
                            GIANT FOUR CORNERS, INC.
                            GIANT MID-CONTINENT, INC.
                              PHOENIX FUEL CO., INC
               (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)

DELAWARE                                                     86-0642718
ARIZONA                                                      86-0218157
TEXAS                                                        74-1501967
NEW MEXICO                                                   85-0389396
NEW MEXICO                                                   74-2759385
NEW MEXICO                                                   74-2468207
ARIZONA                                                      86-0739055
ARIZONA                                                      86-0784398
ARIZONA                                                      86-0109486
(STATE OR OTHER JURISDICTION OF                              (I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)                               IDENTIFICATION NO.)

23733 NORTH SCOTTSDALE ROAD
SCOTTSDALE, ARIZONA                                          85255
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                     (ZIP CODE)

                             ----------------------

                      9% SENIOR SUBORDINATED NOTES DUE 2007
                       (TITLE OF THE INDENTURE SECURITIES)
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      THIS CONFORMING PAPER FORMAT DOCUMENT IS BEING SUBMITTED PURSUANT TO
                         RULE 901(d) OF REGULATION S-T



1.    GENERAL INFORMATION.  FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:

      (a)   NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING AUTHORITY TO WHICH
IT IS SUBJECT.

- --------------------------------------------------------------------------------
                  NAME                                        ADDRESS
- --------------------------------------------------------------------------------

SUPERINTENDENT OF BANKS OF THE STATE OF      2 RECTOR STREET, NEW YORK,
NEW YORK                                     N.Y.  10006, AND ALBANY, N.Y. 12203

FEDERAL RESERVE BANK OF NEW YORK             33 LIBERTY PLAZA, NEW YORK,
                                             N.Y.  10045

FEDERAL DEPOSIT INSURANCE CORPORATION        WASHINGTON, D.C.  20429

NEW YORK CLEARING HOUSE ASSOCIATION          NEW YORK, NEW YORK   10005

(b)   WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

YES.

2.    AFFILIATIONS WITH OBLIGOR.

      IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
      AFFILIATION.

      NONE.

16.   LIST OF EXHIBITS.

      EXHIBITS IDENTIFIED IN PARENTHESES BELOW, ON FILE WITH THE COMMISSION, ARE
      INCORPORATED HEREIN BY REFERENCE AS AN EXHIBIT HERETO, PURSUANT TO RULE
      7a-29 UNDER THE TRUST INDENTURE ACT OF 1939 (THE "ACT") AND 17 C.F.R.
      229.10(d).

      1.    A COPY OF THE ORGANIZATION CERTIFICATE OF THE BANK OF NEW YORK
            (FORMERLY IRVING TRUST COMPANY) AS NOW IN EFFECT, WHICH CONTAINS THE
            AUTHORITY TO COMMENCE BUSINESS AND A GRANT OF POWERS TO EXERCISE
            CORPORATE TRUST POWERS. (EXHIBIT 1 TO AMENDMENT NO. 1 TO FORM T-1
            FILED WITH REGISTRATION STATEMENT NO. 33-6215, EXHIBITS 1a AND 1b TO
            FORM T-1 FILED WITH REGISTRATION STATEMENT NO. 33-21672 AND EXHIBIT
            1 TO FORM T-1 FILED WITH REGISTRATION STATEMENT NO. 33-29637.)

      4.    A COPY OF THE EXISTING BY-LAWS OF THE TRUSTEE. (EXHIBIT 4 TO FORM
            T-1 FILED WITH REGISTRATION STATEMENT NO. 33-31019.)

      6.    THE CONSENT OF THE TRUSTEE REQUIRED BY SECTION 321(b) OF THE ACT.
            (EXHIBIT 6 TO FORM T-1 FILED WITH REGISTRATION STATEMENT NO.
            33-44051.)

      7.    A COPY OF THE LATEST REPORT OF CONDITION OF THE TRUSTEE PUBLISHED
            PURSUANT TO LAW OR TO THE REQUIREMENTS OF ITS SUPERVISING OR
            EXAMINING AUTHORITY.



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                                    SIGNATURE



      PURSUANT TO THE REQUIREMENTS OF THE ACT, THE TRUSTEE, THE BANK OF NEW
YORK, A CORPORATION ORGANIZED AND EXISTING UNDER THE LAWS OF THE STATE OF NEW
YORK, HAS DULY CAUSED THIS STATEMENT OF ELIGIBILITY TO BE SIGNED ON ITS BEHALF
BY THE UNDERSIGNED, THEREUNTO DULY AUTHORIZED, ALL IN THE CITY OF NEW YORK, AND
STATE OF NEW YORK, ON THE 30TH DAY OF SEPTEMBER, 1997.


                                            THE BANK OF NEW YORK



                                            BY:   /S/  VIVIAN GEORGES
                                                -------------------------------
                                                NAME:  VIVIAN GEORGES
                                                TITLE: ASSISTANT VICE PRESIDENT
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                                                                       Exhibit 7


                       Consolidated Report of Condition of

                              THE BANK OF NEW YORK

                     of 48 Wall Street, New York, N.Y. 10286
                     And Foreign and Domestic Subsidiaries,
a member of the Federal Reserve System, at the close of business June 30, 1997,
published in accordance with a call made by the Federal Reserve Bank of this
District pursuant to the provisions of the Federal Reserve Act.



                                                                  Dollar Amounts
ASSETS                                                             in Thousands
                                                                
Cash and balances due from depos-
  itory institutions:
  Noninterest-bearing balances and
  currency and coin .....................................          $  7,769,502

  Interest-bearing balances .............................             1,472,524
Securities:
  Held-to-maturity securities ...........................             1,080,234
  Available-for-sale securities .........................             3,046,199
Federal funds sold and Securities pur-
  chased under agreements to resell .....................             3,193,800
Loans and lease financing
  receivables:
  Loans and leases, net of unearned
    income ..............................................            35,352,045
  LESS: Allowance for loan and
    lease losses ........................................               625,042
  LESS: Allocated transfer risk
    reserve .............................................                   429
    Loans and leases, net of unearned
    income, allowance, and reserve ......................            34,726,574
Assets held in trading accounts .........................             1,611,096
Premises and fixed assets (including
  capitalized leases) ...................................               676,729
Other real estate owned .................................                22,460
Investments in unconsolidated
  subsidiaries and associated
  companies .............................................               209,959
Customers' liability to this bank on
  acceptances outstanding ...............................             1,357,731
Intangible assets .......................................               720,883
Other assets ............................................             1,627,267
                                                                   ------------
Total assets ............................................          $ 57,514,958
                                                                   ============

LIABILITIES
Deposits:
  In domestic offices ...................................          $ 26,875,596
  Noninterest-bearing ...................................            11,213,657
  Interest-bearing ......................................            15,661,939
  In foreign offices, Edge and
  Agreement subsidiaries, and IBFs ......................            16,334,270
  Noninterest-bearing ...................................               596,369
  Interest-bearing ......................................            15,737,901

   5

                                                                
Federal funds purchased and Securities
  sold under agreements to repurchase ...................             1,583,157
Demand notes issued to the U.S. .........................
  Treasury ..............................................               303,000
Trading liabilities .....................................             1,308,173
Other borrowed money:
  With remaining maturity of one year
    or less .............................................             2,383,570
  With remaining maturity of more than
one year through three years ............................                     0
  With remaining maturity of more than
    three years .........................................                20,679
Bank's liability on acceptances exe-
  cuted and outstanding .................................             1,377,244
Subordinated notes and debentures .......................             1,018,940
Other liabilities .......................................             1,732,792
                                                                   ------------
Total liabilities .......................................            52,937,421
                                                                   ------------

EQUITY CAPITAL
Common stock ............................................             1,135,284
Surplus .................................................               731,319
Undivided profits and capital
  reserves ..............................................             2,721,258
Net unrealized holding gains
  (losses) on available-for-sale
  securities ............................................                 1,948
Cumulative foreign currency transla-
  tion adjustments ......................................               (12,272)
                                                                   ------------
Total equity capital ....................................             4,577,537
                                                                   ------------
Total liabilities and equity
  capital ...............................................          $ 57,514,958
                                                                   ============



     I, Robert E. Keilman, Senior Vice President and Comptroller of the
above-named bank do hereby declare that this Report of Condition has been
prepared in conformance with the instructions issued by the Board of Governors
of the Federal Reserve System and is true to the best of my knowledge and
belief.

                                                     Robert E. Keilman

     We, the undersigned directors, attest to the correctness of this Report of
Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been prepared in conformance with the instructions
issued by the Board of Governors of the Federal Reserve System and is true and
correct.

                       -
     Alan R. Griffith    |
     J. Carter Bacot     |
     Thomas A. Renyi     |     Directors
                       -