ORGANIZATION AND BASIS OF PRESENTATION	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	1. ORGANIZATION AND BASIS OF PRESENTATION Organization Buckeye Partners, L.P. is a publicly traded Delaware master limited partnership and its limited partnership units representing limited partner interests (“LP Units”) are listed on the New York Stock Exchange (“NYSE”) under the ticker symbol “BPL.” Buckeye GP LLC (“Buckeye GP”) is our general partner. As used in these Notes to Unaudited Condensed Consolidated Financial Statements, “we,” “us,” “our” and “Buckeye” mean Buckeye Partners, L.P. and, where the context requires, includes our subsidiaries. Buckeye owns and operates a diversified network of integrated assets providing midstream logistic solutions, primarily consisting of the transportation, storage and marketing of liquid petroleum products. We are one of the largest independent liquid petroleum products pipeline operators in the United States in terms of volumes delivered, miles of pipeline and active products terminals across our portfolio of pipelines, inland terminals and marine terminals located primarily in the East Coast and Gulf Coast regions of the United States and in the Caribbean. Our network of marine terminals enables us to facilitate global flows of crude oil and refined petroleum products, offering our customers connectivity between supply areas and market centers through some of the world’s most important bulk storage and blending hubs. Our flagship marine terminal in The Bahamas, Buckeye Bahamas Hub Limited (“BBH”), formerly known as Bahamas Oil Refining Company International Limited (“BORCO”), is one of the largest marine crude oil and refined petroleum products storage facilities in the world and provides an array of logistics and blending services for the global flow of petroleum products. Our expansion into the Gulf Coast has added another regional hub with world-class marine terminalling, storage and processing capabilities. We are also a wholesale distributor of refined petroleum products in certain areas served by our pipelines and terminals. Basis of Presentation and Principles of Consolidation The unaudited condensed consolidated financial statements and the accompanying notes are prepared in accordance with U.S. generally accepted accounting principles and the rules of the U.S. Securities and Exchange Commission. Accordingly, our financial statements reflect all normal and recurring adjustments that are, in the opinion of management, necessary for a fair presentation of our results of operations for the interim periods. The unaudited condensed consolidated financial statements include the accounts of our subsidiaries controlled by us and variable interest entities (“VIE”) of which we are the primary beneficiary. We have eliminated all intercompany transactions in consolidation. We believe that the disclosures in these unaudited condensed consolidated financial statements are adequate to make the information presented not misleading. These interim financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto contained in our Annual Report on Form 10-K for the year ended December 31, 2015. Recent Accounting Developments Equity-Based Compensation. In March 2016, the Financial Accounting Standards Board (“FASB”) issued guidance to simplify several aspects of the accounting for employee equity-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as classification in the statement of cash flows and classification of awards as liabilities or equity. The guidance is effective for annual reporting periods beginning after December 15, 2016 and interim periods within those annual periods, with early adoption permitted. Amendments related to the timing of when excess tax benefits are recognized, statutory withholding requirements and forfeitures should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Amendments related to the presentation of employee taxes paid on the statement of cash flows should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement should be applied prospectively. Amendments related to the presentation of excess tax benefits on the statement of cash flows may be applied using either a prospective transition method or a retrospective transition method. We are currently evaluating the impact the adoption of this guidance will have on our consolidated financial statements. Leases. In February 2016, the FASB issued guidance requiring lessees to recognize assets and liabilities for leases with lease terms greater than twelve months in the statement of financial position. This update also requires enhanced disclosures regarding the amount, timing and uncertainty of cash flows arising from leases. The guidance must be applied using a modified retrospective approach and is effective for annual reporting periods beginning after December 15, 2018 and interim periods within those annual periods, with early adoption permitted. We are currently evaluating the impact the adoption of this guidance will have on our consolidated financial statements.

1. ORGANIZATION AND BASIS OF PRESENTATION

Organization

Buckeye Partners, L.P. is a publicly traded Delaware master limited partnership and its limited partnership units representing limited partner interests (“LP Units”) are listed on the New York Stock Exchange (“NYSE”) under the ticker symbol “BPL.” Buckeye GP LLC (“Buckeye GP”) is our general partner. As used in these Notes to Unaudited Condensed Consolidated Financial Statements, “we,” “us,” “our” and “Buckeye” mean Buckeye Partners, L.P. and, where the context requires, includes our subsidiaries.

Buckeye owns and operates a diversified network of integrated assets providing midstream logistic solutions, primarily consisting of the transportation, storage and marketing of liquid petroleum products. We are one of the largest independent liquid petroleum products pipeline operators in the United States in terms of volumes delivered, miles of pipeline and active products terminals across our portfolio of pipelines, inland terminals and marine terminals located primarily in the East Coast and Gulf Coast regions of the United States and in the Caribbean. Our network of marine terminals enables us to facilitate global flows of crude oil and refined petroleum products, offering our customers connectivity between supply areas and market centers through some of the world’s most important bulk storage and blending hubs. Our flagship marine terminal in The Bahamas, Buckeye Bahamas Hub Limited (“BBH”), formerly known as Bahamas Oil Refining Company International Limited (“BORCO”), is one of the largest marine crude oil and refined petroleum products storage facilities in the world and provides an array of logistics and blending services for the global flow of petroleum products. Our expansion into the Gulf Coast has added another regional hub with world-class marine terminalling, storage and processing capabilities. We are also a wholesale distributor of refined petroleum products in certain areas served by our pipelines and terminals.

Basis of Presentation and Principles of Consolidation

The unaudited condensed consolidated financial statements and the accompanying notes are prepared in accordance with U.S. generally accepted accounting principles and the rules of the U.S. Securities and Exchange Commission. Accordingly, our financial statements reflect all normal and recurring adjustments that are, in the opinion of management, necessary for a fair presentation of our results of operations for the interim periods. The unaudited condensed consolidated financial statements include the accounts of our subsidiaries controlled by us and variable interest entities (“VIE”) of which we are the primary beneficiary. We have eliminated all intercompany transactions in consolidation.

We believe that the disclosures in these unaudited condensed consolidated financial statements are adequate to make the information presented not misleading. These interim financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto contained in our Annual Report on Form 10-K for the year ended December 31, 2015.

Recent Accounting Developments

Equity-Based Compensation. In March 2016, the Financial Accounting Standards Board (“FASB”) issued guidance to simplify several aspects of the accounting for employee equity-based payment transactions, including the accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as classification in the statement of cash flows and classification of awards as liabilities or equity. The guidance is effective for annual reporting periods beginning after December 15, 2016 and interim periods within those annual periods, with early adoption permitted. Amendments related to the timing of when excess tax benefits are recognized, statutory withholding requirements and forfeitures should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Amendments related to the presentation of employee taxes paid on the statement of cash flows should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement should be applied prospectively. Amendments related to the presentation of excess tax benefits on the statement of cash flows may be applied using either a prospective transition method or a retrospective transition method. We are currently evaluating the impact the adoption of this guidance will have on our consolidated financial statements.

Leases. In February 2016, the FASB issued guidance requiring lessees to recognize assets and liabilities for leases with lease terms greater than twelve months in the statement of financial position. This update also requires enhanced disclosures regarding the amount, timing and uncertainty of cash flows arising from leases. The guidance must be applied using a modified retrospective approach and is effective for annual reporting periods beginning after December 15, 2018 and interim periods within those annual periods, with early adoption permitted. We are currently evaluating the impact the adoption of this guidance will have on our consolidated financial statements.