PETROLEUM REFINING

Latest 424B5 SEC Filings
Prospectus [Rule 424(b)(5)]

PENNZOIL QUAKER STATE CO, 424B5, 2000-12-01
PENNZOIL QUAKER STATE CO, 424B5, 2000-11-17
VALERO ENERGY CORP/TX, 424B5, 2000-06-26
VALERO ENERGY CORP/TX, 424B5, 2000-06-08
VALERO ENERGY CORP/TX, 424B5, 2000-06-05
ASHLAND INC, 424B5, 2000-05-23
FRONTIER OIL CORP /NEW/, 424B5, 1999-11-09
FRONTIER OIL CORP /NEW/, 424B5, 1999-10-20
AMERICAN INTERNATIONAL PETROLEUM CORP /NV/, 424B5, 1999-10-07
AMERADA HESS CORP, 424B5, 1999-09-30
AMERADA HESS CORP, 424B5, 1999-09-21
ASHLAND INC, 424B5, 1999-09-03
LYONDELL CHEMICAL CO, 424B5, 1999-05-12
LYONDELL CHEMICAL CO, 424B5, 1999-04-19
CONOCO INC /DE, 424B5, 1999-03-29
PHILLIPS PETROLEUM CO, 424B5, 1999-03-29
PENNZOIL QUAKER STATE CO, 424B5, 1999-03-26
PENNZOIL QUAKER STATE CO, 424B5, 1999-03-18
ASHLAND INC, 424B5, 1999-03-12
VALERO ENERGY CORP/TX, 424B5, 1999-03-11
VALERO ENERGY CORP/TX, 424B5, 1999-03-03
UNION OIL CO OF CALIFORNIA, 424B5, 1999-02-16
UNION OIL CO OF CALIFORNIA, 424B5, 1999-02-11
USX CORP, 424B5, 1998-11-06
UNION OIL CO OF CALIFORNIA, 424B5, 1998-09-28
PHILLIPS PETROLEUM CO, 424B5, 1998-07-01
TESORO PETROLEUM CORP /NEW/, 424B5, 1998-06-29
TESORO PETROLEUM CORP /NEW/, 424B5, 1998-06-09
PENNZOIL CO /DE/, 424B5, 1998-05-29
PENNZOIL CO /DE/, 424B5, 1998-05-20
ASHLAND INC, 424B5, 1998-05-14
UNION OIL CO OF CALIFORNIA, 424B5, 1998-05-04
PHILLIPS PETROLEUM CO, 424B5, 1998-03-19
AMOCO CORP, 424B5, 1997-10-09
AMOCO CORP, 424B5, 1997-08-07
ULTRAMAR DIAMOND SHAMROCK CORP, 424B5, 1997-06-23
MOBIL CORP, 424B5, 1997-05-14
AMOCO CORP, 424B5, 1997-02-05
PHILLIPS PETROLEUM CO, 424B5, 1997-01-16
PHILLIPS PETROLEUM CO, 424B5, 1996-05-29
PHILLIPS PETROLEUM CO, 424B5, 1996-05-20
LYONDELL PETROCHEMICAL CO, 424B5, 1996-02-16
LYONDELL PETROCHEMICAL CO, 424B5, 1996-02-09
TOSCO CORP, 424B5, 1995-07-10
VALERO ENERGY CORP, 424B5, 1994-12-02
SUN CO INC, 424B5, 1994-10-26
SUN CO INC, 424B5, 1994-03-16
UNION OIL CO OF CALIFORNIA, 424B5, 1994-02-02


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