0001965573-26-000001.txt : 20260219 0001965573-26-000001.hdr.sgml : 20260219 20260219142329 ACCESSION NUMBER: 0001965573-26-000001 CONFORMED SUBMISSION TYPE: D/A PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20260219 DATE AS OF CHANGE: 20260219 EFFECTIVENESS DATE: 20260219 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Pin Oak Opportunity Fund 4 Master, LP CENTRAL INDEX KEY: 0001965573 ORGANIZATION NAME: EIN: 921810737 STATE OF INCORPORATION: TX FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-473255 FILM NUMBER: 26653632 BUSINESS ADDRESS: STREET 1: 510 BERING DR STE 100 CITY: HOUSTON STATE: TX ZIP: 77057 BUSINESS PHONE: 7138718300 MAIL ADDRESS: STREET 1: 510 BERING DR STE 100 CITY: HOUSTON STATE: TX ZIP: 77057 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Pin Oak Opportunity Fund 4 QP, LP CENTRAL INDEX KEY: 0001965577 ORGANIZATION NAME: EIN: 921855531 STATE OF INCORPORATION: TX FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-473255-02 FILM NUMBER: 26653634 BUSINESS ADDRESS: STREET 1: 510 BERING DR STE100 CITY: HOUSTON STATE: TX ZIP: 77057 BUSINESS PHONE: 7138718300 MAIL ADDRESS: STREET 1: 510 BERING DR STE100 CITY: HOUSTON STATE: TX ZIP: 77057 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Pin Oak Opportunity Fund 4 AI, LP CENTRAL INDEX KEY: 0001965559 ORGANIZATION NAME: EIN: 921830381 STATE OF INCORPORATION: TX FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-473255-01 FILM NUMBER: 26653633 BUSINESS ADDRESS: STREET 1: 510 BERING DR STE 100 CITY: HOUSTON STATE: TX ZIP: 77057 BUSINESS PHONE: 7138718300 MAIL ADDRESS: STREET 1: 510 BERING DR STE 100 CITY: HOUSTON STATE: TX ZIP: 77057 D/A 1 primary_doc.xml X0708 D/A LIVE 0001965573 Pin Oak Opportunity Fund 4 Master, LP 510 BERING DR STE 100 HOUSTON TX TEXAS 77057 7138718300 TEXAS None None Limited Partnership true 2023 0001965577 Pin Oak Opportunity Fund 4 QP, LP 510 BERING DR STE100 HOUSTON TX TEXAS 77057 7138718300 TEXAS None None Limited Partnership true 2023 0001965559 Pin Oak Opportunity Fund 4 AI, LP 510 BERING DR STE 100 HOUSTON TX TEXAS 77057 7138718300 TEXAS None None Limited Partnership true 2023 Barrett Rouse 510 Bering Dr, Suite 100 Houston TX TEXAS 77057 Promoter manager of the fund's general partner Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.1 3C.7 true 0001965573-25-000001 2023-05-22 true true false 50000 Indefinite 13070000 Indefinite false 50 0 0 0 false Pin Oak Opportunity Fund 4 Master, LP danestes Dan Estes CCO 2026-02-19 Pin Oak Opportunity Fund 4 QP, LP danestes Dan Estes CCO 2026-02-19 Pin Oak Opportunity Fund 4 AI, LP danestes Dan Estes CCO 2026-02-19