EXHIBIT 25.1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM T-1 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) ---------------------------- BANK ONE, NATIONAL ASSOCIATION (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER) A NATIONAL BANKING ASSOCIATION 36-0899825 (I.R.S. EMPLOYER IDENTIFICATION NUMBER) 1 BANK ONE PLAZA, CHICAGO, ILLINOIS 60670 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE) BANK ONE, NATIONAL ASSOCIATION 1 BANK ONE PLAZA CHICAGO, ILLINOIS 60670 ATTN: SANDRA L. CARUBA, FIRST VICE PRESIDENT (312) 336-9436 (NAME, ADDRESS AND TELEPHONE NUMBER OF AGENT FOR SERVICE) ----------------------------- SWIFT ENERGY COMPANY (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER) TEXAS 74-2073055 (STATE OR OTHER JURISDICTION OF (I.R.S. EMPLOYER INCORPORATION OR ORGANIZATION) IDENTIFICATION NUMBER) 16825 NORTHCHASE DR., SUITE 400 77060 HOUSTON, TEXAS (ZIP CODE) (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) DEBT SECURITIES (TITLE OF INDENTURE SECURITIES) 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. Comptroller of Currency, Washington, D.C., Federal Deposit Insurance Corporation, Washington, D.C., The Board of Governors of the Federal Reserve System, Washington D.C. (b) WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS. The trustee is authorized to exercise corporate trust powers. ITEM 2. AFFILIATIONS WITH THE OBLIGOR. IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH AFFILIATION. No such affiliation exists with the trustee. ITEM 16. LIST OF EXHIBITS. LIST BELOW ALL EXHIBITS FILED AS A PART OF THIS STATEMENT OF ELIGIBILITY. 1. A copy of the articles of association of the trustee now in effect.* 2. A copy of the certificates of authority of the trustee to commence business.* 3. A copy of the authorization of the trustee to exercise corporate trust powers.* 4. A copy of the existing by-laws of the trustee.* 5. Not Applicable. 6. The consent of the trustee required by Section 321(b) of the Act. 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. Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the trustee, Bank One, National Association, a national banking association organized and existing under the laws of the United States of America, has duly caused this Statement of Eligibility to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of Chicago and the State of Illinois, on this 10th day of April, 2002. BANK ONE, NATIONAL ASSOCIATION, TRUSTEE By /s/ Sandra L. Caruba Sandra L. Caruba First Vice President * Exhibits 1, 2, 3, and 4 are herein incorporated by reference to Exhibits bearing identical numbers in Item 16 of the Form T-1 of Bank One, National Association, filed as Exhibit 25 to the Registration Statement on Form S-3 of Household Finance Corporation filed with the Securities and Exchange Commission on March 24, 2000 (Registration No. 333-33240). EXHIBIT 6 THE CONSENT OF THE TRUSTEE REQUIRED BY SECTION 321(b) OF THE ACT April 10, 2002 Securities and Exchange Commission Washington, D.C. 20549 Ladies and Gentlemen: In connection with the qualification of an indenture between Swift Energy Company and Bank One, National Association, the undersigned, in accordance with Section 321(b) of the Trust Indenture Act of 1939, as amended, hereby consents that the reports of examinations of the undersigned, made by Federal or State authorities authorized to make such examinations, may be furnished by such authorities to the Securities and Exchange Commission upon its request therefor. Very truly yours, BANK ONE, NATIONAL ASSOCIATION By /s/ Sandra L. Caruba Sandra L. Caruba First Vice President BANK ONE, NA - ------------------------------------- FFIEC 031 Legal Title of Bank RC-1 CHICAGO -------- - ------------------------------------- 11 City -------- IL 60670 - ------------------------------------- State Zip Code Transmitted to EDS as 0172473 on 02/14/02 at 11:02:09 CST FDIC Certificate Number - 03618 CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL AND STATE-CHARTERED SAVINGS BANKS FOR DECEMBER 31, 2001 All schedules are to be reported in thousands of dollars. Unless otherwise indicated, report the amount outstanding as of the last business day of the quarter. SCHEDULE RC -- BALANCE SHEET Dollar Amounts in Thousands RCFD Bil|Mil|Thou - --------------------------------------------------------------------------------------- -------------------------- ASSETS 1. Cash and balances due from depository institutions (from Schedule RC-A): a. Noninterest-bearing balances and currency and coin (1) ......................... 0081 12,684,893 1.a b. Interest-bearing balances(2) ................................................... 0071 953,557 1.b 2. Securities: a. Held-to-maturity securities (from Schedule RC-B, column A) ..................... 1754 0 2.a b. Available-for-sale securities (from Schedule RC-B, column D) ................... 1773 35,870,041 2.b 3. Federal funds sold and securities purchased under agreements to resell ............ 1350 20,257,107 3 4. Loans and lease financing receivables (from Schedule RC-C): a. LOANS AND LEASES HELD FOR SALE ................................................. 5369 473,360 4.a b. LOANS AND LEASES, NET OF UNEARNED INCOME ................... B528 83,166,314 4.b. c. LESS: Allowance for loan and lease losses .................. 3123 2,209,028 4.c. d. LOANS AND LEASES, NET OF UNEARNED INCOME AND ALLOWANCES (ITEM 4.b MINUS 4.c ............................................................. B529 80,957,286 4.d 5. Trading assets (from Schedule RC-D) ............................................... 3545 3,543,926 5 6. Premises and fixed assets (including capitalized leases) .......................... 2145 880,464 6 7. Other real estate owned (from Schedule RC-M) ...................................... 2150 26,445 7 8. Investments in unconsolidated subsidiaries and associated companies (from Schedule RC-M) .............................................................. 2130 266,554 8 9. Customers' liability to this bank on acceptances outstanding....................... 2155 208,471 9 10. Intangible assets: a. GOODWILL ....................................................................... 3163 448,690 10.a b. OTHER INTANGIBLE ASSETS (FROM SCHEDULE RC-M) ................................... 0426 3,627 10.b 11. Other assets (from Schedule RC-F) ................................................. 2160 4,448,151 11 12. Total assets (sum of items 1 through 11) .......................................... 2170 161,022,572 12 </Table> - ---------- (1) Includes cash items in process of collection and unposted debits. (2) Includes time certificates of deposit not held for trading. BANK ONE, NA - ------------------------------------- FFIEC 031 Legal Title of Bank RC-2 Transmitted to EDS as 0172473 on 02/14/02 at 11:02:09 CST FDIC Certificate Number - 03618 -------- 12 SCHEDULE RC -- CONTINUED -------- Dollar Amounts in Thousands Bil|Mil|Thou - ---------------------------------------------------------------------------------------- ------------ LIABILITIES 13. Deposits: a. In domestic offices (sum of totals of columns A and C RCON from Schedule RC-E, part I) ..................................................... 2200 81,019,724 13.a (1) Noninterest-bearing(1) ................................. 6631 34,308,625 13.a.1 (2) Interest-bearing ....................................... 6636 46,711,099 13.a.2 b. In foreign offices, Edge and Agreement subsidiaries, and RCFN IBFs (from Schedule RC-E, part II) .............................................. 2200 26,357,544 13.b (1) Noninterest-bearing .................................... 6631 640,616 13.b.1 (2) Interest-bearing ....................................... 6636 25,716,928 RCFD 13.b.2 14. Federal funds purchased and securities sold under agreements to repurchase ...................................................................... 2800 8,206,199 14 15. Trading liabilities (from Schedule RC-D) ........................................... 3548 3,131,652 15 16. OTHER BORROWED MONEY (INCLUDES MORTGAGE INDEBTEDNESS AND OBLIGATIONS UNDER CAPITALIZED LEASES) (FROM SCHEDULE RC-M): ........................ 3190 21,671,080 16 17. Not applicable 18. Bank's liability on acceptances executed and outstanding ........................... 2920 208,471 18 19. Subordinated notes and debentures(2) ............................................... 3200 4,000,516 19 20. Other liabilities (from Schedule RC-G) ............................................. 2930 5,386,964 20 21. Total liabilities (sum of items 13 through 20) ..................................... 2948 149,982,150 21 22. MINORITY INTEREST IN CONSOLIDATED SUBSIDIARIES ..................................... 3000 50,200 22 EQUITY CAPITAL 23. Perpetual preferred stock and related surplus ...................................... 3838 0 23 24. Common stock ....................................................................... 3230 200,858 24 25. Surplus (exclude all surplus related to preferred stock) ........................... 3839 6,661,081 25 26. a. Retained earnings ............................................................... 3632 4,134,252 26.a b. ACCUMULATED OTHER COMPREHENSIVE INCOME (3) ...................................... B530 (5,969) 26.b 27. OTHER EQUITY CAPITAL COMPONENTS (4) ................................................ A130 0 27 28. Total equity capital (sum of items 23 through 27) .................................. 3210 10,990,222 28 29. Total liabilities, minority interest, and equity capital (sum of items 21, 22, and 28) ...................................................... 3300 161,022,572 29 MEMORANDUM TO BE REPORTED ONLY WITH THE MARCH REPORT OF CONDITION. 1. Indicate in the box at the right the number of the statement below that best describes the most comprehensive level of auditing work performed for the bank by independent external auditors as of any RCFD NUMBER date during 2000 .................................................................... 6724 N/A M.1 1 = Independent audit of the bank conducted in accordance with generally accepted auditing standards by a certified public accounting firm which submits a report on the bank 2 = Independent audit of the bank's parent holding company conducted in accordance with generally accepted auditing standards by a certified public accounting firm which submits a report on the consolidated holding company (but not on the bank separately) 3 = ATTESTATION ON BANK MANAGEMENT'S ASSERTION ON THE EFFECTIVENESS OF THE BANK'S INTERNAL CONTROL OVER FINANCIAL REPORTING BY A CERTIFIED PUBLIC ACCOUNTING FIRM 4 = Directors' examination of the bank conducted in accordance with generally accepted auditing standards by a certified public accounting firm (may be required by state chartering authority) 5 = Directors' examination of the bank performed by other external auditors (may be required by state chartering authority) 6 = Review of the bank's financial statements by external auditors 7 = Compilation of the bank's financial statements by external auditors 8 = Other audit procedures (excluding tax preparation work) 9 = No external audit work - -------------- (1) Includes total demand deposits and noninterest-bearing time and savings deposits. (2) Includes limited-life preferred stock and related surplus. (3) Includes net unrealized holding gains (losses) on available-for-sale securities, accumulated net gains (losses) on cash flow hedges, cumulative foreign currency translation adjustments, and minimum pension liability adjustments. (4) Includes treasury stock and unearned Employee Stock Ownership Plan shares.