0000947871-21-001185.txt : 20211115 0000947871-21-001185.hdr.sgml : 20211115 20211115135533 ACCESSION NUMBER: 0000947871-21-001185 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210930 FILED AS OF DATE: 20211115 DATE AS OF CHANGE: 20211115 EFFECTIVENESS DATE: 20211115 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: 211408897 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 09-30-2021 09-30-2021 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 11-15-2021 2 4 304408 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 45459 3692881 SH DFND 1, 2 3692881 0 0 Kimbell Rty Partners LP UNIT 49435R102 12816 906992 SH DFND 1, 2 906992 0 0 Riley Exploration Permian, Inc. COM 76665T102 9177 390860 SH DFND 1, 2 390860 0 0 Southwestern Energy Co COM 845467109 236956 42771835 SH DFND 1, 2 42771835 0 0