0001750133-19-000001.txt : 20191015 0001750133-19-000001.hdr.sgml : 20191015 20191011180257 ACCESSION NUMBER: 0001750133-19-000001 CONFORMED SUBMISSION TYPE: D/A PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06b ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20191015 DATE AS OF CHANGE: 20191011 EFFECTIVENESS DATE: 20191015 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Yorktown Energy Partners XII, L.P. CENTRAL INDEX KEY: 0001750133 IRS NUMBER: 830952554 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-323500 FILM NUMBER: 191148797 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 D/A 1 primary_doc.xml X0708 D/A LIVE 0001750133 Yorktown Energy Partners XII, L.P. 410 PARK AVENUE 19TH FLOOR NEW YORK NY NEW YORK 10022 212-515-2115 DELAWARE None None Limited Partnership true 2018 Robert A Signorino 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer W Howard Keenan 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer Bryan H Lawrence 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer Tomas R LaCosta 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer Peter A Leidel 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer Bryan R Lawrence 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer James C Crain 410 Park Avenue 19th Floor New York NY NEW YORK 10022 Director Manager of Yorktown XII Associates LLC, the General Partner of the General Partner of Issuer Pooled Investment Fund Venture Capital Fund false Decline to Disclose 06b 3C 3C.7 true 0001750133-18-000001 2018-11-20 true true false 0 Indefinite 239836842 Indefinite false 84 0 0 0 false Yorktown Energy Partners XII, L.P. /s/ Tomas R. LaCosta Tomas R. LaCosta Member of the GP of the GP of Issuer 2019-10-10