UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K [X] Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2003 or [ ] Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to ------------ ------------- Commission file number 1-7297 Birdsall, Inc. Retirement Savings Plan A. Full title of the plan and address of the plan, if different from that of the issuer named below: Birdsall, Inc. Retirement Savings Plan B. Name of the issuer of the securities held pursuant to the plan and the address of its principal executive office: Nicor Inc. 1844 Ferry Road Naperville, Illinois 60563-9600 Table of Contents - ----------------- Financial Information Birdsall, Inc. Retirement Savings Plan Cover Page.................................................. 1 Report of Independent Registered Public Accounting Firm..... 2 Financial Statements........................................ 3 Notes to the Financial Statements........................... 5 Schedule of Assets Held at End of Year...................... 9 Other Information Signature................................................... 11 Exhibit Index............................................... 12 BIRDSALL, INC. RETIREMENT SAVINGS PLAN Financial Statements as of and for the Years ended December 31, 2003 and 2002 Additional information required for Form 5500 for the year ended December 31, 2003 1 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Birdsall, Inc. Retirement Savings Plan Committee: We have audited the accompanying statements of net assets available for benefits of the Birdsall, Inc. Retirement Savings Plan (the "Plan") as of December 31, 2003 and 2002, and the related statements of changes in net assets available for benefits for the years then ended. These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, such financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2003 and 2002, and the changes in net assets available for benefits for the years then ended in conformity with accounting principles generally accepted in the United States of America. Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule of assets (held at end of year) as of December 31, 2003 is presented for the purpose of additional analysis and is not a required part of the basic financial statements but is supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This schedule is the responsibility of the Plan's management. Such schedule has been subjected to the auditing procedures applied in our audit of the basic 2003 financial statements and, in our opinion, is fairly stated in all material respects when considered in relation to the basic financial statements taken as a whole. DELOITTE & TOUCHE LLP Fort Lauderdale, Florida June 25, 2004 2 Birdsall, Inc. Retirement Savings Plan Statements of Assets Available for Benefits December 31 ---------------------------- 2003 2002 ------------ ------------ Assets: Participant-directed investments (Note 3) $43,096,233 $ 35,344,042 ------------ ------------ Receivables: Employer contributions 402,778 400,104 Participant contributions 48,014 62,242 ------------ ------------ 450,792 462,346 ------------ ------------ Total assets 43,547,025 35,806,388 ------------ ------------ Liabilities: Operating payables 6,668 6,925 ------------ ------------ Total liabilities 6,668 6,925 ------------ ------------ Net assets available for benefits $43,540,357 $35,799,463 ============ ============ The accompanying notes to the financial statements are an integral part of these financial statements. 3 Birdsall, Inc. Retirement Savings Plan Statements of Changes in Net Assets Available for Benefits Year Ended December 31 --------------------------- 2003 2002 ------------ ------------ Additions: Investment income (loss) Dividends $ 174,666 $ 113,583 Interest 539,990 653,467 Net appreciation (depreciation) in fair value of Nicor Inc. common stock 79,332 (40,628) Net investment gain from common/collective trusts 378,393 261,159 Net investment gain (loss) from registered investment companies 4,148,022 (3,518,176) Other 2 (849) ------------ ------------ Net investment gain (loss) 5,320,405 (2,531,444) ------------ ------------ Contributions: Participants 2,497,635 2,212,235 Employer 1,613,612 1,554,842 ------------ ------------ 4,111,247 3,767,077 Other 179 56 ------------ ------------ Total additions 9,431,831 1,235,689 ------------ ------------ Deductions: Distributions to participants 1,590,833 1,840,673 Administrative expenses and other 100,104 118,762 ------------ ------------ Total deductions 1,690,937 1,959,435 ------------ ------------ Net Increase (decrease) 7,740,894 (723,746) Net assets available for benefits at beginning of year 35,799,463 36,523,209 ------------ ------------ Net assets available for benefits at end of year $43,540,357 $35,799,463 ============ ============ The accompanying notes to the financial statements are an integral part of these financial statements. 4 Birdsall, Inc. Retirement Savings Plan Notes to the Financial Statements For the Years Ended December 31, 2003 and 2002 1. DESCRIPTION OF THE PLAN The following description of the Birdsall, Inc. Retirement Savings Plan provides only general information. Participants should refer to the Plan agreement for more detailed information. The Plan. Birdsall, Inc. (the "Company") established the Tropical Shipping Savings Investment Plan (the "Savings Investment Plan") on September 1, 1983, to provide its eligible employees with an opportunity to accumulate retirement savings. Effective January 1, 1990, the Birdsall, Inc. Profit Sharing Plan was merged into the Savings Investment Plan and re-designated as the Birdsall, Inc. Retirement Savings Plan (the "Plan"). The funds of the Plan are held for safekeeping and investment by the Birdsall, Inc. Retirement Savings Plan Trust (the "Trust"). The Plan is a defined contribution plan and is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"). Plan administration. Authority to control and manage the operation and administration of the Plan is vested in a committee appointed by the Board of Directors of the Company. The Vanguard Fiduciary Trust Company serves as trustee for the Trust and holds the investments of the Plan under the terms of a trust agreement. The Vanguard Fiduciary Trust Company also acts as investment manager for certain investments of the Plan. Administrative expenses associated with the operation of the Plan are paid from Plan assets. Contributions. The participants may elect to make, by payroll deduction, either tax-deferred or after-tax contributions, or any combination thereof, that are partially matched by the Company. The Company also contributes annual discretionary profit sharing awards allocated equally to eligible participants, which were $374,813 and $376,152 for the years ended December 31, 2003 and 2002, respectively. In addition, the Plan accepts certain rollovers. Participants direct the investment of their contributions and account balances into various investment options offered by the Plan. Investments. The Plan's investment options currently include the Nicor Company Stock Fund, a Stated Return Fund, and approximately 20 mutual funds. Participant accounts. Individual accounts are maintained for each Plan participant. Each participant's account is increased by the participant's contributions, Company contributions and allocated plan earnings, and decreased by withdrawals, allocated plan investment losses and administrative expenses. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. 5 Birdsall, Inc. Retirement Savings Plan Notes to the Financial Statements For the Years Ended December 31, 2003 and 2002 Participant loans. Participants may borrow up to the lesser of $50,000 or 50% of their vested account balance from their accounts. Loans are repayable through payroll deductions over periods ranging up to 60 months. The interest rate is the prime rate plus 1 percent and is fixed over the term of the loan. Vesting and forfeitures. The participant's contributions and earnings thereon are immediately vested. The Company's contributions and earnings thereon are vested after the participant's completion of three years of service, the participant's death while employed by the Company or retirement. If the participant's interest in the Company's contributions and earnings thereon is not vested, such interest will be forfeited if the participant's employment with the Company or an affiliate is terminated and the participant is not reemployed within five years by the Company or an affiliate. Any amounts forfeited by a participant are applied to reduce the amount of the Company's contributions under the Plan. At December 31, 2003 and 2002, the Plan's assets included forfeited nonvested accounts totaling $11,092 and $14,423 respectively, to be used to reduce future Company contributions. Payment of benefits. On termination of service due to retirement, disability, or death, a participant may elect to receive either a lump-sum amount equal to the participant's vested interest in his or her account balance, or annual installments over a specified period. For termination of service for other reasons, a participant has the option to receive the value of the vested interest in his or her account as an immediate lump-sum distribution or defer receipt to no later than the age of 70-1/2. Suspensions and withdrawals. A participant may suspend contributions and will not cease to be a participant during the suspension period. A participant may elect, under certain conditions, to withdraw certain participant contributions and earnings thereon prior to termination of employment. The Company's matching contributions and earnings thereon will not be distributed until the vested participant's attainment of age 59-1/2 or employment has been terminated. Plan Termination. The Company expects to continue the Plan indefinitely, but reserves the right to amend or discontinue it at any time subject to the provisions of ERISA. In the event of Plan termination, participants will become fully vested in their account balances. 2. ACCOUNTING POLICIES Basis of accounting. The financial statements of the Plan have been prepared on the accrual basis of accounting. 6 Birdsall, Inc. Retirement Savings Plan Notes to the Financial Statements For the Years Ended December 31, 2003 and 2002 Use of estimates. The preparation of financial statements in accordance with accounting policies generally accepted in the United States of America requires management to make estimates that affect the reported amounts. Actual results could differ from those estimates. Investment valuation. The Plan states its investment in the Trust at the underlying fair value of the investments of the Trust as follows: The market value for Nicor Inc. common stock is based on the closing price on the New York Stock Exchange Composite Tape. The Stated Return Fund is primarily composed of group annuity contracts and investments in common/collective trusts. Group annuity contracts are fully benefit responsive and are recorded at contract value. Contract value represents contributions made plus interest at the various contract rates, less Plan withdrawals and administrative expenses. The aggregate contract value of the group annuity contracts at December 31, 2003 and 2002 approximated market value. Estimated market value is based on a variety of factors, such as contract terms, interest rate, maturity date and credit worthiness of the issue. Of the years ended December 31, 2003 and 2002, the average yield on the contracts, which equals the average crediting interest, was 6.9% and 6.6 % respectively. There are no reserves against contract value for credit risk of the issuers of contracts or otherwise. The market value of the units of the common/collective trusts and registered investment companies are determined based on the underlying market value of the investments of the funds. Market risk. The Plan has investments that generally are exposed to various risks, such as interest rate, credit and overall market volatility risks. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in their values will occur in the near term and such changes could materially affect the amounts reported in the statements of net assets available for benefits. 7 Birdsall, Inc. Retirement Savings Plan Notes to the Financial Statements (concluded) For the Years Ended December 31, 2003 and 2002 3. INVESTMENTS Plan investments as of December 31 are as follows: 2003 2002 ------------- ------------- Pacific Life Insurance Company group annuity contract $ 4,650,330** $ 4,320,886** Allstate Life Insurance Company group annuity contract - 1,988,374** Travelers Insurance Company group annuity contract 1,779,564 1,779,274 Vanguard 500 Index Fund* 11,515,373** 8,145,302** Vanguard Balanced Index Investment Fund* 5,469,768** 4,082,470** Other registered investment companies 5,618,084** 3,697,343 NICOR Inc. common stock* 2,890,717** 3,173,263** Vanguard Retirement Savings Trust* 9,988,520** 6,941,761** Loans to participants 1,183,877 1,215,369 ------------- ------------- Total $ 43,096,233 $ 35,344,042 ============= ============= * Party-in-interest investment ** Indicates an investment that represents 5% or more of the Plan's net assets 4. INCOME TAXES The Internal Revenue Service has determined and informed the Company by a letter dated June 26, 2003 that the Plan and related Trust as then designed was tax exempt under Section 401(a) of the Internal Revenue Code (the "Code"). The Plan has been amended since receiving the determination letter; however, the Plan's management believes that the Plan and related Trust continue to be designed and operated in compliance with the requirements of the Code. Therefore, no provision for income taxes has been included in the Plan's financial statements. 5. RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 Pending distributions are recorded as a liability in the Plan's Form 5500; however, they are not recognized as liabilities for financial statement purposes. These distributions are reflected in the statements of changes in net assets available for benefits when actually paid. 8 Birdsall, Inc. Retirement Savings Plan Form 5500 Schedule H, Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) December 31, 2003 Identity of Issue, Borrower or Similar Party Description of Investment Current Value - ------------------------- -------------------------------- --------------- Pacific Life Insurance Group annuity contract: $ 4,650,330 Company maturing March 2005; 7.57% fixed interest rate Travelers Insurance Group annuity contract: 1,779,564 Company maturing March 2004; 6.14% fixed interest rate (A)Nicor Inc. Common stock at $2.50 par value 2,890,717 (A)Participant Notes Participant loans earning interest 1,183,877 Receivable from 5.00% - 10.50% (A)AIM Aggressive Growth Registered investment company 22,370 Fund (A)American Century Int'l Registered investment company 575,183 Growth (A)American Century Registered investment company 25,273 Equity Growth (A)Davis New York Venture Registered investment company 287,863 (A)Fidelity Blue Chip Registered investment company 77,663 Growth Fund (A)INVESCO Dynamics Fund Registered investment company 140,527 (A)Janus Fund Registered investment company 197,924 (A)Liberty Acorn Int'l Registered investment company 37,420 (A)Liberty Acorn USA Fund Registered investment company 196,811 (A)Managers Special Equity Registered investment company 1,635,568 9 Birdsall, Inc. Retirement Savings Plan (Continued) Form 5500 Schedule H, Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) December 31, 2003 Identity of Issue, Borrower or Similar Party Description of Investment Current Value - -------------------------- ------------------------------ --------------- (A)Vanguard 500 Index Inv Registered investment company 11,515,373 (A)Vanguard Asset Registered investment company 22,941 Allocation Fund (A)Vanguard Balanced Index Registered investment company 5,469,768 Fund (A)Vanguard Devel Mkts Registered investment company 62,908 Index (A)Vanguard GNMA Investors Registered investment company 122,599 Shares (A)Vanguard Growth Equity Registered investment company 343,272 Fund (A)Vanguard Growth Index Registered investment company 58,232 Inv (A)Vanguard LT Treasury Registered investment company 297,420 Inv (A)Vanguard PRIMECAP Fund Registered investment company 385,565 (A)Vanguard Total Bond Registered investment company 968,157 Market Ind (A)Vanguard Prime Money Registered investment company 160,388 Mkt Fund (A)Vanguard Retirement Common collective trust 9,988,520 Savings Trust ------------ Total $ 43,096,233 ============ (A)Denotes party-in-interest investment 10 Signature Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized. Birdsall, Inc. Retirement Savings Plan Date June 25, 2004 /s/ ROBERT MARK CHAPMAN ------------------ ----------------------------------- Robert Mark Chapman Plan Administrator and Vice President Pricing and Organization Support, Birdsall, Inc. 11 Exhibit Index - ------------- Exhibit Number Description of Document - ------- ------------------------------------------------- 23.01 Independent Registered Public Accounting Firm Consent - Birdsall, Inc. Retirement Savings Plan 12