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SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

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FORM 11-K

ý		ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the year ended December 31, 2002
o		TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 1-3551

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EQUITABLE RESOURCES, INC.
SAVINGS AND PROTECTION PLAN

(Full title of the Plan and address of the Plan,
if different from that of the issuer named below)

EQUITABLE RESOURCES, INC.

One Oxford Centre, Suite 3300, 301 Grant Street
Pittsburgh, Pennsylvania 15219

(Name of issuer of the securities held pursuant to the
Plan and the address of principal executive office)

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CONTENTS

				Page
Report of independent auditors				2
Financial statements
	Statements of net assets available for benefits			3
	Statements of changes in net assets available for benefits			4
	Notes to financial statements			5 - 7
Supplementary information
	Schedule H:
		Line 4i—Schedule of Assets (Held at End of Year)		8
		Line 4j—Schedule of Reportable Transactions		9
Signature				10
Index to Exhibits				11

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REPORT OF INDEPENDENT AUDITORS

Benefits Administration Committee
Equitable Resources, Inc. Savings and Protection Plan

        We have audited the accompanying statements of net assets available for benefits of the Equitable Resources, Inc. Savings and Protection Plan as of December 31, 2002 and 2001, 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 auditing standards generally accepted in the 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, the financial statements referred to above present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2002 and 2001, and the changes in its net assets available for benefits for the years then ended in conformity with accounting principles generally accepted in the United States.

        Our audits were performed for the purpose of forming an opinion on the financial statements taken as a whole. The accompanying supplemental schedules of assets (held at end of year) as of December 31, 2002 and reportable transactions for the year then ended are presented for purposes of additional analysis and are not a required part of the financial statements but are 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. These supplemental schedules are the responsibility of the Plan's management. The supplemental schedules have been subjected to the auditing procedures applied in our audits of the financial statements and, in our opinion, are fairly stated in all material respects in relation to the financial statements taken as a whole.

		/s/ Ernst & Young LLP
Pittsburgh, Pennsylvania May 2, 2003

2

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EQUITABLE RESOURCES, INC.

SAVINGS AND PROTECTION PLAN

STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS

			December 31
			2002			2001
Investments, at fair value:
	Mutual funds		$	6,659,370		$	8,458,231
	Common/collective trusts			3,104,251			2,540,736
	Employer Stock Fund			1,048,082			913,197
	Participant loans			442,902			440,241
Net assets available for benefits			$	11,254,605		$	12,352,405

See accompanying notes

3

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EQUITABLE RESOURCES, INC.

SAVINGS AND PROTECTION PLAN

STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS

				Year ended December 31
				2002			2001
Additions:
	Investment income:
		Interest and dividends		$	263,924		$	431,338
		Interest on participant loans			38,028			36,546
	Total investment income				301,952			467,884
	Net depreciation in fair value of investments				(1,602,522	)		(1,515,503	)
	Contributions:
		Matching			122,248			93,649
		Contract			981,489			983,878
	Total contributions				1,103,737			1,077,527
Total additions					(196,833	)		29,908
Deductions:
	Withdrawals by participants				878,756			2,242,491
	Other				1,614			3,544
	Transfers to affiliated plan				20,597			(79,385	)
Total deductions					900,967			2,166,650
Net decrease in net assets available for benefits					(1,097,800	)		(2,136,742	)
Net assets available for benefits:
	At beginning of year				12,352,405			14,489,147
	At end of year			$	11,254,605		$	12,352,405

See accompanying notes

4

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EQUITABLE RESOURCES, INC.

SAVINGS AND PROTECTION PLAN

NOTES TO FINANCIAL STATEMENTS FOR THE YEAR ENDED

DECEMBER 31, 2002

1.    Description of Plan

        The following description of the Equitable Resources, Inc. Savings and Protection Plan (Plan) provides only general information. Participants should refer to the summary plan description for a more complete description of the Plan's provisions.

General

        The Plan is a defined contribution profit sharing and savings plan, with a 401(k) salary reduction feature, implemented on September 1, 1987, by Equitable Resources, Inc. and certain subsidiaries (the Company or Companies).

        All regular, full-time employees of the Companies who are covered by a collective bargaining agreement are eligible to participate. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA).

Contributions

        Participants can elect to contribute between 1% and 15% of eligible earnings to the Plan, subject to Internal Revenue Code limitations. These contributions are referred to as contract contributions. Matching contributions are subject to the respective collective bargaining agreements. Prior to January 1, 1999, the matching contribution followed the participant's contract contribution. Effective January 1, 1999, the matching contribution will be invested in the Employer Stock Fund until the participant is 100% vested. After the participant is 100% vested, the matching contribution will follow the participant's contract investment election(s).

Rollover Contributions

        Participants are allowed to make rollover contributions (contributions transferred to the Plan from other qualified retirement plans), subject to certain requirements.

Vesting

        Participants are 100% vested in the value of contract contributions made, and any rollover contributions.

        If employment is terminated for any reason other than retirement, death, or total and permanent disability, a participant is entitled to receive the vested value of any matching contributions, as determined in accordance with the following schedule:

        Amounts forfeited by participants upon termination will be used to reduce the amount of the Company's future matching contributions to the Plan.

        Upon retirement, death or total and permanent disability of the participant or termination of the Plan, a participant is entitled to receive the full value of any matching contributions, regardless of years of continuous service.

5

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Withdrawals by Participants

        Payments to participants are made in one of the following ways, subject to certain limitations: a single sum payment, a single life annuity with substantially equal monthly installments, a single life or joint and survivor annuity with a minimum guaranteed number of monthly benefits, or substantially equal annual installments payable over a period not to exceed the life expectancy or joint life expectancies of the participant or of the participant and his designated beneficiary.

Loans to Participants

        A participant may borrow money from the Plan in amounts up to the lesser of $50,000, or 50% of the vested balance of a participant's account.

Administrative Expenses

        The plan sponsor pays administrative expenses associated with the Plan except for investment management fees which are paid by the Plan.

2.    Summary of Significant Accounting Policies

Basis of Accounting

        The financial statements of the Plan are prepared under the accrual method of accounting.

Investments

        The Employer Stock Fund consisting of Equitable Resources, Inc. common stock (Company common stock) is valued at market price as quoted on the New York Stock Exchange. Contracts included in the Putnam Stable Value Fund are valued at face value, which approximates market. Other investments are valued at market. There were 29,911 and 26,804 shares of Company common stock at December 31, 2002 and 2001, respectively.

Use of Estimates

        The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

3.    Investments

        Investments that represent 5% or more of fair value of the Plan's net assets are as follows:

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*

Nonparticipant-directed

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        The Plan's investments (including investments purchased, sold as well as held during the year) (depreciated) appreciated in fair value as determined by quoted market prices as follows:

        Information about the net assets and significant components of the changes in net assets related to the nonparticipant-directed investment is as follows:

4.    Plan Termination

        Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of plan termination, the interests of all affected participants will become fully vested.

5.    Income Tax Status

        The Plan has received a determination letter from the Internal Revenue Service dated July 8, 2002, stating that the Plan is qualified under Section 401(a) of the Internal Revenue Code (the Code) and, therefore, the related trust is exempt from taxation. Once qualified, the Plan is required to operate in conformity with the Code to maintain its qualification. The plan administrator believes the Plan is being operated in compliance with the applicable requirements of the Code and, therefore, believes that the Plan is qualified and the related trust is tax-exempt.

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SUPPLEMENTARY INFORMATION

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EQUITABLE RESOURCES, INC.
SAVINGS AND PROTECTION PLAN

Plan No. 206    EIN: 25-0464690
Schedule H, Line 4i—Schedule of Assets (Held at End of Year)
December 31, 2002

		Identity of Issue, Borrower, Lessor, or Similar Party		Description of Investment Including Maturity Date, Rate of Interest, Collateral, Par, or Maturity Value		Cost			Current Value
*		Putnam Bond Index Fund		Common/collective trust			(a)		$	209,129
		Alger Mid Cap Retirement Fund		Mutual fund			(a)			74,970
		Equitable Life Insurance		Mutual fund			(a)			86
		Pimco Total Return Administrative Fund		Mutual fund			(a)			185,123
		Alger Small Cap Retirement Fund		Mutual fund			(a)			2,355
		Neuberger Berman Genesis Trust		Mutual fund			(a)			168,413
*		The George Putnam Fund of Boston		Mutual fund			(a)			1,111,475
*		The Putnam Fund for Growth & Income		Mutual fund			(a)			1,981,495
*		Putnam Investors Fund		Mutual fund			(a)			7,036
*		Putnam Income Fund		Mutual fund			(a)			457,671
*		Putnam Global Equity Fund		Mutual fund			(a)			368
*		Putnam Vista Fund		Mutual fund			(a)			36,256
*		Putnam Voyager Fund		Mutual fund			(a)			1,760,876
*		Putnam Growth Opportunities Fund		Mutual fund			(a)			12,795
*		Putnam OTC & Emerging Growth Fund		Mutual fund			(a)			424
*		Putnam Asset Allocation—Growth Portfolio		Mutual fund			(a)			148,804
*		Putnam Asset Allocation—Balanced Portfolio		Mutual fund			(a)			158,892
*		Putnam Asset Allocation—Conservative Portfolio		Mutual fund			(a)			102,121
*		Putnam S&P 500 Index Fund		Common/collective trust			(a)			20,474
*		Putnam International Growth Fund		Mutual fund			(a)			450,210
		Loan Fund		Mutual fund			(a)			442,902
*		Equitable Resources Common Stock Fund		Employer securities—common shares		$	910,092			1,048,082
*		Putnam Stable Value Fund		Common/collective trust			(a)			2,874,648
									$	11,254,605

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(a)

Cost information not required as per Special Rule for certain participant-directed transactions.

*

Party-in-interest to the Plan.

8

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EQUITABLE RESOURCES, INC.
SAVINGS AND PROTECTION PLAN

Plan No. 206    EIN: 25-0464690
Schedule H, Line 4j—Schedule of Reportable Transactions
Year ended December 31, 2002

Identity of Party Involved		Description of Investment		Purchase Price		Selling Price		Cost of Asset		Current Value of Asset on Transaction Date		Net Gain

        There were no category (i), (ii), (iii) or (iv) reportable transactions during 2002.

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SIGNATURE

        Pursuant to the requirements of the Securities Exchange Act of 1934, the members of the Benefits Administration Committee of the Plan have duly caused this Annual Report to be signed on its behalf by the undersigned hereunto duly authorized.

				EQUITABLE RESOURCES, INC. SAVINGS AND PROTECTION PLAN (Name of Plan)
		By		/s/ David J. Smith David J. Smith Plan Administrator
June 27, 2003

10

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INDEX TO EXHIBITS

Exhibit No.		Description		Sequential Page No.
23		Consent of Independent Auditors		12
99		Certification by David J. Smith and David L. Porges pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.		13

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QuickLinks

CONTENTS
REPORT OF INDEPENDENT AUDITORS
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
NOTES TO FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 2002
SUPPLEMENTARY INFORMATION
EQUITABLE RESOURCES, INC. SAVINGS AND PROTECTION PLAN
Schedule H, Line 4i—Schedule of Assets (Held at End of Year)  December 31, 2002
EQUITABLE RESOURCES, INC. SAVINGS AND PROTECTION PLAN
Schedule H, Line 4j—Schedule of Reportable Transactions Year ended December 31, 2002
SIGNATURE
INDEX TO EXHIBITS