CLIFFS DRILLING CO

Notice of Effectiveness

Post-effective amendment to a registration statement

Notice of Effectiveness

Post-effective amendment to a registration statement

Post-effective amendment to an automatic shelf registration statement

Automatic Shelf Registration

Notice of Effectiveness

Registration statement under Securities Act of 1933

4,7

No description available

ITEM INFORMATION:

ITEM INFORMATION:

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

No description available

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

4,7

General form for quarterly reports under Section 13 or 15(d)

No description available

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Certification of termination of registration of a class of securities (Section 12(b))

1,5,7

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

5,7

Registration of Securities on Exchange (amendment)

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Registration statement under Securities Act of 1933

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

2,7

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

Registration statement under Securities Act of 1933 (amendment)

Annual report pursuant to Section 13 or 15(d) (amendment)

Registration statement under Securities Act of 1933 (amendment)

Current report pursuant to Section 13 or 15(d)

Registration statement under Securities Act of 1933 (amendment)

Annual report pursuant to Section 13 or 15(d) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Registration statement under Securities Act of 1933

5,7

5,7

General form for quarterly reports under Section 13 or 15(d)

Registration of Securities on Exchange

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Definitive Proxy Statement

Preliminary Proxy Statement

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Beneficial ownership report for a holder of more than 5% (Schedule 13D)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Registration of Securities on Exchange

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Annual report pursuant to Section 13 or 15(d)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a holder of more than 5% (Schedule 13D) (amendment)

Prospectus filed under Rule 424(b)(1)

Registration statement under Securities Act of 1933

Prospectus filed under Rule 424(b)(1)

Current report pursuant to Section 13 or 15(d)

No description available

Definitive Proxy Statement

No description available

No description available

Current report pursuant to Section 13 or 15(d)

Definitive Proxy Statement

Definitive Proxy Statement

No description available

Current report pursuant to Section 13 or 15(d)