X0306 4 2018-02-08 0 0001002590 STAR GROUP, L.P. SGU 0001347608 Yorktown VI Associates LLC 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022-4407 0 0 1 0 Common Units 2018-02-08 4 J 0 7118833 0.00 D 427734 I See Footnote Pro rata distribution from Yorktown Energy Partners VI, L.P., Yorktown VI Company LP and the reporting person. The reporting entity disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the reporting entity is the beneficial owner of the securities for Section 16 or any other purpose. These securities are owned directly by Yorktown Energy Partners VI, L.P. The reporting person is the general partner of Yorktown VI Company LP, the general partner of Yorktown Energy Partners VI, L.P. /s/ Bryan H. Lawrence, Manager 2018-02-12