X0306 4 2019-06-13 0 0000805022 BUCKEYE PARTNERS, L.P. BPL 0001236743 LASALA JOSEPH A JR ONE GREENWAY PLAZA SUITE 600 HOUSTON TX 77046 1 0 0 0 Limited Partner Units 2019-06-13 4 S 0 9000 40.766 D 14000 D The price reported in Column 4 is a weighted average price. These units were sold in multiple transactions at prices ranging from $40.74 to $40.795, inclusive. The reporting person undertakes to provide to Buckeye Partners, L.P., any security holder of Buckeye Partners, L.P., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of units sold at each separate price within the ranges set forth in footnote (1) to this Form 4. /s/ Todd J. Russo, as attorney-in-fact for Joseph A. LaSala, Jr. 2019-06-14