Exhibit 99.1

News Release NYSE: BPL		Buckeye Partners, L.P. One Greenway Plaza Suite 600 Houston, TX 77046

BUCKEYE PARTNERS, L.P. REPORTS 2013 FIRST QUARTER RESULTS; INCREASES

QUARTERLY CASH DISTRIBUTION

HOUSTON, May 3, 2013 — Buckeye Partners, L.P. (“Buckeye”) (NYSE: BPL) today reported net income attributable to Buckeye’s unitholders for the first quarter of 2013 of $89.3 million, or $0.86 per diluted unit, compared to net income attributable to Buckeye’s unitholders for the first quarter of 2012 of $52.0 million, or $0.54 per diluted unit. Buckeye’s Adjusted EBITDA (as defined below) for the first quarter of 2013 was $158.8 million compared with Adjusted EBITDA of $115.0 million for the first quarter of 2012. Operating income for the first quarter of 2013 was $119.1 million compared to $80.7 million for the first quarter of 2012.

“During the first quarter of 2013, we continued to generate excellent financial results, primarily due to the performance of our Pipelines & Terminals segment, which benefitted from the strong contribution from our terminal operations,” stated Clark C. Smith, President and Chief Executive Officer. “We also placed an additional 1.6 million barrels of leased storage capacity into service at BORCO during the quarter, and realized improved performance in the Energy Services segment.” Mr. Smith further noted, “As a result of Buckeye’s exceptional results over the past three quarters and the positive outlook we have for future periods, we are pleased to announce an increase in our quarterly cash distribution.”

With regard to the two orders issued by the Federal Energy Regulatory Commission (“FERC”) in February related to ongoing proceedings involving one of Buckeye’s operating subsidiaries, Buckeye Pipe Line Company, L.P., Mr. Smith stated, “We are pleased with FERC’s confirmation of our current tariff rates and to have further clarity regarding the ratemaking methodology to be followed in both competitive and non-competitive markets. We are in active settlement discussions with respect to the ongoing complaint regarding transportation of jet fuel to the New York City airports.”

Buckeye announced today that its general partner declared a cash distribution of $1.05 per limited partner (“LP”) unit for the quarter ended March 31, 2013. Class B unitholders will not receive a distribution of cash, but instead will be issued additional Class B units pursuant to Buckeye’s partnership agreement. The distribution will be payable on May 31, 2013 to unitholders of record on May 16, 2013. This cash distribution represents a 1.2% percent increase over the $1.0375 per LP unit distribution declared for the first quarter of 2012. Buckeye has paid cash distributions in each quarter since its formation in 1986.

Buckeye will host a conference call with members of executive management today, May 3, 2013, at 11:00 a.m. Eastern Time. To access the live Webcast of the call, go to http://investor.shareholder.com/media/eventdetail.cfm?eventid=112129&CompanyID=AMDA-QJUY2&e=1&mediaKey=D17492E652916DA0EAD3A8A9634A6324 ten minutes prior to its start. Interested parties may participate in the call by dialing 877-870-9226. A replay will be archived and available at this link until June 30, 2013, and the replay also may be accessed by dialing 800-585-8367 and entering conference ID 35684636.

Buckeye Partners, L.P. (NYSE: BPL) is a publicly traded master limited partnership that owns and operates one of the largest independent liquid petroleum products pipeline systems in the United States in terms of volumes delivered, with approximately 6,000 miles of pipeline. Buckeye also owns more than 100 liquid petroleum products terminals with aggregate storage capacity of over 70 million barrels. In addition, Buckeye operates and/or maintains third-party pipelines under agreements with major oil and chemical companies, owns a high-performance natural gas storage facility in Northern California, and markets liquid petroleum products in certain regions served by its pipeline and terminal operations. Buckeye’s flagship marine terminal in The Bahamas, BORCO, is one of the largest crude oil and petroleum products storage facilities in the world, serving the international markets as a premier global logistics hub. More information concerning Buckeye can be found at www.buckeye.com.

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Adjusted EBITDA and distributable cash flow are measures not defined by GAAP. Adjusted EBITDA is the primary measure used by our senior management, including our Chief Executive Officer, to (i) evaluate our consolidated operating performance and the operating performance of our business segments, (ii) allocate resources and capital to business segments, (iii) evaluate the viability of proposed projects, and (iv) determine overall rates of return on alternative investment opportunities. Distributable cash flow is another measure used by our senior management to provide a clearer picture of Buckeye’s cash available for distribution to its unitholders. Adjusted EBITDA and distributable cash flow eliminate (i) non-cash expenses, including, but not limited to, depreciation and amortization expense resulting from the significant capital investments we make in our businesses and from intangible assets recognized in business combinations, (ii) charges for obligations expected to be settled with the issuance of equity instruments, and (iii) items that are not indicative of our core operating performance results and business outlook.

Buckeye believes that investors benefit from having access to the same financial measures used by senior management and that these measures are useful to investors because they aid in comparing Buckeye’s operating performance with that of other companies with similar operations. The Adjusted EBITDA and distributable cash flow data presented by Buckeye may not be comparable to similarly titled measures at other companies because these items may be defined differently by other companies. Please see the attached reconciliations of each of Adjusted EBITDA and distributable cash flow to net income.

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This press release includes forward-looking statements that we believe to be reasonable as of today’s date. Such statements are identified by use of the words “anticipates,” “believes,” “estimates,” “expects,” “intends,” “plans,” “predicts,” “projects,” “should,” and similar expressions. Actual results may differ significantly because of risks and uncertainties that are difficult to predict and that may be beyond our control. Among them are (i) changes in federal, state, local, and foreign laws or regulations to which we are subject, including those governing pipeline tariff rates and those that permit the treatment of us as a partnership for federal income tax purposes, (ii) terrorism, adverse weather conditions, including hurricanes, environmental releases, and natural disasters, (iii) changes in the marketplace for our products or services, such as increased competition, better energy efficiency, or general reductions in demand, (iv) adverse regional, national, or international economic conditions, adverse capital market conditions, and adverse political developments, (v) shutdowns or interruptions at our pipeline, terminal, and storage assets or at the source points for the products we transport, store, or

sell, (vi) unanticipated capital expenditures in connection with the construction, repair, or replacement of our assets, (vii) volatility in the price of refined petroleum products and the value of natural gas storage services, (viii) nonpayment or nonperformance by our customers, (ix) our ability to integrate acquired assets with our existing assets and to realize anticipated cost savings and other efficiencies and benefits, (x) our ability to successfully complete our organic growth projects and to realize the anticipated financial benefits, and (xi) an unfavorable outcome with respect to the proceedings pending before the FERC regarding Buckeye Pipe Line Company, L.P.’s transportation of jet fuel to the New York City airports. You should read our filings with the U.S. Securities and Exchange Commission, including our Annual Report on Form 10-K for the year ended December 31, 2012, for a more extensive list of factors that could affect results. We undertake no obligation to revise our forward-looking statements to reflect events or circumstances occurring after today’s date.

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This release is intended to be a qualified notice under Treasury Regulation Section 1.1446-4(b). Brokers and nominees should treat one hundred percent (100.0%) of Buckeye’s distributions to non-U.S. investors as being attributable to income that is effectively connected with a United States trade or business. Accordingly, Buckeye’s distributions to non-U.S. investors are subject to federal income tax withholding at the highest applicable effective tax rate.

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BUCKEYE PARTNERS, L.P.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per unit amounts)

(Unaudited)

BUCKEYE PARTNERS, L.P.

SELECTED FINANCIAL AND OPERATING DATA

(In thousands)

(Unaudited)

BUCKEYE PARTNERS, L.P.

SELECTED FINANCIAL AND OPERATING DATA—Continued

(Unaudited)

BUCKEYE PARTNERS, L.P.

SELECTED FINANCIAL AND OPERATING DATA

Non-GAAP Reconciliations

(In thousands, except coverage ratio)

(Unaudited)