0000950123-17-007813.txt : 20170814 0000950123-17-007813.hdr.sgml : 20170814 20170814124724 ACCESSION NUMBER: 0000950123-17-007813 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20170630 FILED AS OF DATE: 20170814 DATE AS OF CHANGE: 20170814 EFFECTIVENESS DATE: 20170814 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Yorktown Energy Partners XI, L.P. CENTRAL INDEX KEY: 0001667954 IRS NUMBER: 811279864 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17860 FILM NUMBER: 171028727 BUSINESS ADDRESS: STREET 1: 410 PARK AVENUE, 19TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 BUSINESS PHONE: 212-515-2115 MAIL ADDRESS: STREET 1: 410 PARK AVENUE, 19TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001667954 XXXXXXXX 06-30-2017 06-30-2017 Yorktown Energy Partners XI, L.P.

410 PARK AVENUE, 19TH FLOOR New York NY 10022

13F HOLDINGS REPORT 028-17860 Y Yorktown XI Company LP is the sole general partner of Yorktown Energy Partners XI, L.P. Yorktown XI Associates LLC is the sole general partner of Yorktown XI Company LP. As a result, Yorktown XI Associates LLC and Yorktown XI Company LP may be deemed to have the power to vote or direct the vote or to dispose or direct the disposition of the shares owned by Yorktown Energy Partners XI, L.P. Bryan H. Lawrence 212-515-2112 /s/ Bryan H. Lawrence New York NY 08-14-2017 2 2 91759 false 1 028-17928 Yorktown XI Co LP 2 028-17865 Yorktown XI Associates LLC INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F Extraction Oil and Gas Inc COM 30227M105 57957 4309079 SH DFND 1,2 4309079 0 0 Ramaco Res Inc COM 75134P303 33802 5587128 SH DFND 1,2 5587128 0 0