0001950047-23-001084.txt : 20230531 0001950047-23-001084.hdr.sgml : 20230531 20230531163525 ACCESSION NUMBER: 0001950047-23-001084 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230531 DATE AS OF CHANGE: 20230531 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: DIAMOND OFFSHORE DRILLING, INC. CENTRAL INDEX KEY: 0000949039 STANDARD INDUSTRIAL CLASSIFICATION: DRILLING OIL & GAS WELLS [1381] IRS NUMBER: 760321760 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-13926 FILM NUMBER: 23981511 BUSINESS ADDRESS: STREET 1: 15415 KATY FREEWAY STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 77094 BUSINESS PHONE: 281-492-5300 MAIL ADDRESS: STREET 1: 15415 KATY FREEWAY STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 77094 FORMER COMPANY: FORMER CONFORMED NAME: DIAMOND OFFSHORE DRILLING INC DATE OF NAME CHANGE: 19950807 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Savarino Dominic A CENTRAL INDEX KEY: 0001604910 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 15415 KATY FREEWAY STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 77094 144 1 primary_doc.xml 144 0001604910 XXXXXXXX LIVE 0000949039 DIAMOND OFFSHORE DRILLING INC 001-13926 15415 Katy Freeway Houston TX 77094 281-492-5300 DOMINIC A SAVARINO Director COMMON Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 38th Fl. New York NY 10004

6027 67442.13 101357868 05/31/2023 NYSE Common 05/12/2023 Restricted Stock Units Issuer N 6027 05/12/2023 N/A Y 05/31/2023 03/01/2023 /S/ Dominic A Savarino