0000950123-18-002212.txt : 20180214 0000950123-18-002212.hdr.sgml : 20180214 20180214131512 ACCESSION NUMBER: 0000950123-18-002212 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20171231 FILED AS OF DATE: 20180214 DATE AS OF CHANGE: 20180214 EFFECTIVENESS DATE: 20180214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Yorktown Energy Partners VII, L.P. CENTRAL INDEX KEY: 0001423080 IRS NUMBER: 205451317 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17368 FILM NUMBER: 18610286 BUSINESS ADDRESS: STREET 1: 410 PARK AVENUE STREET 2: 19TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 BUSINESS PHONE: 212-515-2112 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 true false 0001423080 XXXXXXXX 12-31-2017 12-31-2017 Yorktown Energy Partners VII, L.P.

410 Park Avenue 19th Floor New York NY 10022

13F HOLDINGS REPORT 028-17368 Y Yorktown VII Company LP is the sole general partner of Yorktown Energy Partners VII, L.P. Yorktown VII Associates LLC is the sole general partner of Yorktown VII Company LP. As a result, Yorktown VII Associates LLC and Yorktown VII 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 VII, L.P. Bryan H. Lawrence 212-515-2112 /s/ Bryan H. Lawrence New York NY 02-14-2018 2 4 149364 false 1 028-17365 Yorktown VII Co LP 2 028-17370 Yorktown VII Associates LLC INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F Hallador Energy Company COM 40609P105 11571 1900000 SH DFND 1,2 1900000 0 0 Antero Res Corp COM 03674X106 47115 2479717 SH DFND 1,2 2479717 0 0 Mid Con Energy Partners LP COM 59560V109 44 37207 SH DFND 1,2 37207 0 0 Antero Midstream GP LP COM SHS REPSTG 03675Y103 90634 4596064 SH DFND 1,2 4596064 0 0