ARCO CHEMICAL CO

FY: Dec 31 1997

Q: Mar 31 1998

FY: Dec 31 1997

Q: Sep 30 1997

Q: Jun 30 1997

Q: Mar 31 1997

FY: Dec 31 1996

Q: Sep 30 1996

Q: Jul 31 1996

Q: May 1 1996

Q: May 1 1996

FY: Dec 31 1995

Q: Sep 30 1995

Q: Jul 31 1995

Q: Apr 28 1995

FY: Feb 28 1995

2

FILED AS OF DATE: 19980603

5,7

5,7

5

5,7

2,7

5,7

5,7

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

Registration statement under Securities Act of 1933

Prospectus Supplement for Primary Offering

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

Registration statement under Securities Act of 1933 (amendment)

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

Registration statement under Securities Act of 1933

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

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

Preliminary Proxy Statement

No description available

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

ARCHER DANIELS MIDLAND CO

LYONDELL PETROCHEMICAL CO

ATLANTIC RICHFIELD CO /DE

LYONDELL PETROCHEMICAL CO

LYONDELL PETROCHEMICAL CO

ARCO CHEMICAL CO

LYONDELL PETROCHEMICAL CO

ARCO CHEMICAL CO

LYONDELL PETROCHEMICAL CO

LYONDELL PETROCHEMICAL CO

ARCO CHEMICAL CO

LYONDELL PETROCHEMICAL CO

LYONDELL PETROCHEMICAL CO

LYONDELL PETROCHEMICAL CO

ARCO CHEMICAL CO

ARCO CHEMICAL CO

LYONDELL PETROCHEMICAL CO

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)