0002091669-25-000001.txt : 20251124 0002091669-25-000001.hdr.sgml : 20251124 20251124151251 ACCESSION NUMBER: 0002091669-25-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06c ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20251124 DATE AS OF CHANGE: 20251124 EFFECTIVENESS DATE: 20251124 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Quantum Energy Partners IX-O, LP CENTRAL INDEX KEY: 0002091669 ORGANIZATION NAME: EIN: 392533799 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-564900 FILM NUMBER: 251512398 BUSINESS ADDRESS: STREET 1: 800 CAPITOL STREET, SUITE 3600 CITY: HOUSTON STATE: TX ZIP: 77002 BUSINESS PHONE: (713) 452-2000 MAIL ADDRESS: STREET 1: 800 CAPITOL STREET, SUITE 3600 CITY: HOUSTON STATE: TX ZIP: 77002 D 1 primary_doc.xml X0708 D LIVE 0002091669 Quantum Energy Partners IX-O, LP 800 CAPITOL STREET SUITE 3600 HOUSTON TX TEXAS 77002 (713) 452-2000 DELAWARE Quantum Parallel Partners IX-O, LP None Limited Partnership true 2025 JAMES V. BAIRD 800 CAPITOL STREET SUITE 3600 HOUSTON TX TEXAS 77002 Executive Officer Promoter ROMAN A. BEJGER 800 CAPITOL STREET SUITE 3600 HOUSTON TX TEXAS 77002 Executive Officer Promoter Pooled Investment Fund Private Equity Fund false Decline to Disclose 06c 3C 3C.1 3C.7 false true false true true false 0 Indefinite 0 Indefinite false 0 0 0 0 false Quantum Energy Partners IX-O, LP /S/ ROMAN A. BEJGER ROMAN A. BEJGER AUTHORIZED PERSON OF THE GP OF ISSUER 2025-11-24