Helmerich & Payne International Drilling Co.
Related Filers (2)
Other (6)
EFFECT
Friday, 2/15/2019
Notice of Effectiveness
CORRESP
Wednesday, 2/13/2019
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
CORRESP
Wednesday, 2/13/2019
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
EFFECT
Thursday, 7/16/2015
Notice of Effectiveness
CORRESP
Monday, 7/13/2015
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
CORRESP
Thursday, 6/25/2015
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
Ownership (3)
4
Friday, 6/28/2013
ATWOOD OCEANICS INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/28/2013
ATWOOD OCEANICS INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/19/2004
ATWOOD OCEANICS INC: Statement of changes in beneficial ownership of securities
Prospectus (6)
S-3ASR
Thursday, 4/28/2022
Automatic shelf registration statement of securities of well-known seasoned issuers
424B3
Friday, 2/15/2019
Prospectus filed pursuant to Rule 424(b)(3)
S-4
Tuesday, 1/29/2019
Registration of securities issued in business combination transactions
S-3ASR
Friday, 1/25/2019
Automatic shelf registration statement of securities of well-known seasoned issuers
424B3
Thursday, 7/16/2015
Prospectus filed pursuant to Rule 424(b)(3)
S-4
Thursday, 6/25/2015
Registration of securities issued in business combination transactions