0000947871-21-000921.txt : 20210816 0000947871-21-000921.hdr.sgml : 20210816 20210816121637 ACCESSION NUMBER: 0000947871-21-000921 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210630 FILED AS OF DATE: 20210816 DATE AS OF CHANGE: 20210816 EFFECTIVENESS DATE: 20210816 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Yorktown Energy Partners X, L.P. CENTRAL INDEX KEY: 0001577919 IRS NUMBER: 462445852 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17861 FILM NUMBER: 211175955 BUSINESS ADDRESS: STREET 1: 410 PARK AVENUE STREET 2: 19TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 BUSINESS PHONE: 212-515-2115 MAIL ADDRESS: STREET 1: 410 PARK AVENUE STREET 2: 19TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0001577919 XXXXXXXX 06-30-2021 06-30-2021 false Yorktown Energy Partners X, L.P.

410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022

13F HOLDINGS REPORT 028-17861 Y Yorktown X Company LP is the sole general partner of Yorktown Energy Partners X, L.P. Yorktown X Associates LLC is the sole general partner of Yorktown X Company LP. As a result, Yorktown X Associates LLC and Yorktown X 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 X, L.P. Bryan H. Lawrence 212-515-2112 /s/ Bryan H. Lawrence New York NY 08-16-2021 2 3 33118 1 0001687161 028-17863 Yorktown X Associates LLC 2 0001688467 028-17862 Yorktown X Co LP INFORMATION TABLE 2 infotable.xml Ramaco Res Inc COM 75134P303 20200 3692881 SH DFND 1, 2 3692881 0 0 Kimbell Rty Partners LP UNIT 49435R102 11655 906992 SH DFND 1, 2 906992 0 0 Extraction Oil & Gas Inc COM 30227M303 1263 22998 SH DFND 1, 2 22998 0 0