PRODUCTION OPERATORS CORP
Related Filers (6)
- DENVER INVESTMENT ADVISORS LLC (2)
- NEUBERGER & BERMAN LLC (2)
- FMR CORP (1)
- CAMCO INTERNATIONAL INC (1)
- ROTH MICHAEL (1)
- PUTNAM INVESTMENTS INC (1)
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Financials (5)
10-Q
Thursday, 5/15/1997
Quarterly Report for period ending 1997-03-31
10-Q
Friday, 2/7/1997
Quarterly Report for period ending 1996-12-31
10-Q
Thursday, 2/8/1996
Quarterly Report for period ending 1995-12-31
10-K/A
Thursday, 1/25/1996
Annual Report for period ending 1995-09-30
10-K
Thursday, 12/21/1995
Annual Report for period ending 1995-09-30
Other (3)
15-12G
Friday, 6/13/1997
Notice of termination of registration of a class of securities under Section 12(g)
10-K405/A
Wednesday, 5/14/1997
Annual Report with disclosure of delinquent filers
10-K405
Monday, 12/23/1996
Annual Report with disclosure of delinquent filers
Ownership (11)
SC 13G
Thursday, 2/12/1998
NEUBERGER & BERMAN LLC: Major Shareholders
SC 13G/A
Monday, 1/26/1998
PUTNAM INVESTMENTS INC: Major Shareholders
SC 13D
Monday, 4/7/1997
ROTH MICHAEL: Major Shareholders
SC 13D
Monday, 3/10/1997
CAMCO INTERNATIONAL INC: Major Shareholders
SC 13G/A
Wednesday, 2/12/1997
DENVER INVESTMENT ADVISORS LLC: Major Shareholders
SC 13G
Tuesday, 2/11/1997
NEUBERGER & BERMAN LLC: Major Shareholders
SC 13G/A
Friday, 1/31/1997
PUTNAM INVESTMENTS INC: Major Shareholders
SC 13G
Monday, 3/4/1996
DENVER INVESTMENT ADVISORS LLC: Major Shareholders
SC 13G/A
Wednesday, 2/14/1996
FMR CORP: Major Shareholders
SC 13G/A
Friday, 1/19/1996
PUTNAM INVESTMENTS INC: Major Shareholders
SC 13G/A
Thursday, 10/5/1995
PUTNAM INVESTMENTS INC: Major Shareholders