EXHIBIT 25.1

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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549

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                                    FORM T-1

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

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               CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF
                A TRUSTEE PURSUANT TO SECTION 305(b)(2) ________
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                               JPMORGAN CHASE BANK
               (Exact name of trustee as specified in its charter)

                  NEW YORK                                    13-4994650
         (State of incorporation                           (I.R.S. employer
          if not a national bank)                         identification No.)


              270 PARK AVENUE
             NEW YORK, NEW YORK                                  10017
(Address of principal executive offices)                       (Zip Code)

                               WILLIAM H. MCDAVID
                                 GENERAL COUNSEL
                                 270 PARK AVENUE
                            NEW YORK, NEW YORK 10017
                            TELEPHONE: (212) 270-2611
            (Name, address and telephone number of agent for service)

                                 GREY WOLF, INC.
               (Exact name of obligor as specified in its charter)


               SEE TABLE OF ADDITIONAL REGISTRANT GUARANTORS BELOW


                 TEXAS                                         74-2144774
     (State or other jurisdiction of                         I.R.S. employer
      incorporation or organization)                       identification No.)

     10370 RICHMOND AVENUE, SUITE 600
             HOUSTON, TEXAS                                    77042-4136
    (Address of principal executive offices)                   (Zip Code)

               3.75% CONTINGENT CONVERTIBLE SENIOR NOTES DUE 2023
                         (Title of indenture securities)

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                    TABLE OF ADDITIONAL REGISTRANT GUARANTORS



                                                                               ADDRESS, INCLUDING ZIP
                                                                                CODE, AND TELEPHONE
                                                                               NUMBER, INCLUDING AREA
                                          STATE OR OTHER                        CODE, OF REGISTRANT
                                          JURISDICTION OF     IRS EMPLOYER     GUARANTOR'S PRINCIPAL
                  NAME                     INCORPORATION         ID NO.           EXECUTIVE OFFICE
                  ----                    ---------------     ------------     ----------------------
                                                                         
Grey Wolf Drilling Company L.P.           Texas                76-0590999                *

Grey Wolf LLC                             Louisiana            72-1433406                *

Grey Wolf Holdings Company                Nevada               74-1987143                *

Murco Drilling Corporation                Delaware             72-0512163                *

Grey Wolf International, Inc.             Texas                76-0000351                *

DI/Perfensa, Inc.                         Texas                76-0378440                *

DI Energy, Inc.                           Texas                74-2175411                *


* The address for each Additional Registrant Guarantor is 10370 Richmond Avenue,
Suite 600, Houston, Texas 77042-4136, and the telephone number for each is
(713) 435-6100.



                                     GENERAL

ITEM 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.

              New York State Banking Department, State House, Albany, New York
              12110.

              Board of Governors of the Federal Reserve System, Washington,
              D.C., 20551.

              Federal Reserve Bank of New York, District No. 2, 33 Liberty
              Street, New York, N.Y.

              Federal Deposit Insurance Corporation, Washington, D.C., 20429.

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

              Yes.

ITEM 2.  AFFILIATIONS WITH THE OBLIGOR AND GUARANTORS.

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

         None.


ITEMS 3 THROUGH 15, INCLUSIVE, ARE NOT APPLICABLE BY VIRTUE OF T-1 GENERAL
INSTRUCTION B.



                     [REMAINDER OF PAGE INTENTIONALLY BLANK]



ITEM 16.   LIST OF EXHIBITS

           LIST BELOW ALL EXHIBITS FILED AS A PART OF THIS STATEMENT OF
ELIGIBILITY.

           1. A copy of the Restated Organization Certificate of the Trustee
dated March 25, 1997 and the Certificate of Amendment dated October 22, 2001
(see Exhibit 1 to Form T-1 filed in connection with Registration Statement No.
333-76894, which exhibit is incorporated by reference).

           2. A copy of the Certificate of Authority of the Trustee to Commence
Business (see Exhibit 2 to Form T-1 filed in connection with Registration
Statement No. 33-50010, which exhibit is incorporated by reference). On November
11, 2001, in connection with the merger of The Chase Manhattan Bank and Morgan
Guaranty Trust Company of New York, the surviving corporation was renamed
JPMorgan Chase Bank.

           3. None, authorization to exercise corporate trust powers being
contained in the documents identified above as Exhibits 1 and 2.

           4. A copy of the existing By-Laws of the Trustee (see Exhibit 4 to
Form T-1 filed in connection with Registration Statement No. 333-76894, which
exhibit is incorporated by reference.)

           5. Not applicable.

           6. The consent of the Trustee required by Section 321(b) of the Act
(see Exhibit 6 to Form T-1 filed in connection with Registration Statement No.
33-50010, which exhibit is incorporated by reference). On November 11, 2001, in
connection with the merger of The Chase Manhattan Bank and Morgan Guaranty Trust
Company of New York, the surviving corporation was renamed JPMorgan Chase Bank.

           7. A copy of the latest report of condition of the Trustee, published
pursuant to law or the requirements of its supervising or examining authority.

           8.  Not applicable.

           9.  Not applicable.

                                    SIGNATURE

         Pursuant to the requirements of the Trust Indenture Act of 1939 the
Trustee, JPMorgan Chase Bank, 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 Houston and State of Texas, on the ___ day of July, 2003.

                                       JPMORGAN CHASE BANK

                                       By:  /s/ DENNIS ROEMLEIN
                                          -------------------------------
                                                  Dennis Roemlein
                                                  Vice President

                              Exhibit 7 to Form T-1


                                Bank Call Notice

                             RESERVE DISTRICT NO. 2
                       CONSOLIDATED REPORT OF CONDITION OF

                               JPMorgan Chase Bank
                  of 270 Park Avenue, New York, New York 10017
                     and Foreign and Domestic Subsidiaries,
                     a member of the Federal Reserve System,

                    at the close of business March 31, 2003,
                  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 MILLIONS
                                                               
Cash and balances due from depository institutions:
     Noninterest-bearing balances and currency and coin .........    $ 21,415
     Interest-bearing balances ..................................       6,882
Securities:
Held to maturity securities......................................         334
Available for sale securities....................................      80,076
Federal funds sold and securities purchased under
     agreements to resell .......................................
     Federal funds sold in domestic offices .....................      14,044
     Securities purchased under agreements to resell ............      73,060
Loans and lease financing receivables:
     Loans and leases held for sale..............................      25,832
     Loans and leases, net of unearned income .......... $161,345
     Less: Allowance for loan and lease losses .........    3,823
     Loans and leases, net of unearned income and
          allowance .............................................     157,522
Trading Assets ..................................................     189,427
Premises and fixed assets (including capitalized leases).........       6,186
Other real estate owned .........................................         131
Investments in unconsolidated subsidiaries and
     associated companies........................................         691
Customers' liability to this bank on acceptances
     outstanding ................................................         225
Intangible assets
     Goodwill....................................................       2,180
     Other Intangible assets.....................................       3,314
Other assets ....................................................      40,377
TOTAL ASSETS ....................................................    $621,696
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                         LIABILITIES

                                                                 
Deposits
     In domestic offices ........................................    $174,351
     Noninterest-bearing ............................... $ 70,991
     Interest-bearing ..................................  103,360
     In foreign offices, Edge and Agreement
          subsidiaries and IBF's .......................              125,789
     Noninterest-bearing................................ $  7,531
     Interest-bearing ..................................  118,258

Federal funds purchased and securities sold under
     agreements to repurchase:
     Federal funds purchased in domestic offices ................       5,929
     Securities sold under agreements to repurchase .............     113,903
Trading liabilities .............................................     116,329
Other borrowed money (includes mortgage indebtedness
     and obligations under capitalized leases)...................      10,758
Bank's liability on acceptances executed and outstanding.........         225
Subordinated notes and debentures ...............................       8,306
Other liabilities ...............................................      29,735
TOTAL LIABILITIES ...............................................     585,325
Minority Interest in consolidated subsidiaries ..................          97


                           EQUITY CAPITAL

Perpetual preferred stock and related surplus....................           0
Common stock ....................................................       1,785
Surplus  (exclude all surplus related to preferred stock)........      16,304
Retained earnings................................................      17,228
Accumulated other comprehensive income...........................         957
Other equity capital components..................................           0
TOTAL EQUITY CAPITAL ............................................      36,274
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TOTAL LIABILITIES, MINORITY INTEREST, AND EQUITY CAPITAL ........    $621,696
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I, Joseph L. Sclafani, E.V.P. & Controller of the above-named bank, do hereby
declare that this Report of Condition has been prepared in conformance with the
instructions issued by the appropriate Federal regulatory authority and is true
to the best of my knowledge and belief.

                               JOSEPH L. SCLAFANI

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 appropriate Federal regulatory authority and is true and correct.


                               WILLIAM B. HARRISON, JR.    )
                               HELENE L. KAPLAN            ) DIRECTORS
                               WILLIAM H. GRAY, III        )