North America Crude Oil Marketing - March 2002 Summary California Bulletins 02-CA16 to 02-CA24, with Monthly Averages

Chevron has changed its posted prices as shown below: Effective 7:00 AM on the above listed effective date, subject to change without notice, Chevron will pay the following prices per barrel for crude oil and condensate delivered for its account into the custody of its authorized carrier or receiving agent. Prices are subject to deduction for transportation and other charges where applicable. Prices for oil apply to quantities measured by approved automatic custody transfer facilities or 100% tank table with customary adjustment of volume and gravity for temperature and full deduction for sediment and water.

* Prices are subject to a Gravity Adjustment Scale

California	API	CA16 03/01	CA17 03/05	CA18 03/07	CA19 03/11	CA20 03/14
Asphalto		19.85	20.35	20.85	21.35	21.75
Belridge Hvy (under 28�)		16.40	16.90	17.40	17.90	18.65
Belridge Lt (over 28�)		19.65	20.15	20.65	21.15	21.60
Buena Vista Hills		18.70	19.20	19.70	20.20	20.70
Cal Canal		20.70	21.20	21.70	22.20	22.55
Coalinga		16.70	17.20	17.70	18.20	18.95
Cymric		16.05	16.55	17.05	17.55	18.35
Huntington Beach		17.30	17.80	18.30	18.80	19.45
Kern River		16.25	16.75	17.25	17.75	18.50
Kettleman Hills		20.10	20.60	21.10	21.60	21.95
Lost Hills		19.60	20.10	20.60	21.10	21.55
McKittrick		16.25	16.75	17.25	17.75	18.50
Midway Sunset		16.25	16.75	17.25	17.75	18.50
Montebello		18.20	18.70	19.20	19.70	20.25
Pt Arguello (onshore)		12.90	13.40	13.90	14.40	15.15
Railroad Gap		19.75	20.25	20.75	21.25	21.65
San Ardo		14.75	15.25	15.75	16.25	17.05
Seal Beach		19.15	19.65	20.15	20.65	21.10

California	API	CA21 03/18	CA22 03/21	CA23 03/27	CA24 03/28	Mthly Avg
Asphalto		22.25	22.75	23.25	23.75	21.8081
Belridge Hvy (under 28�)		19.15	19.65	20.15	20.65	18.5613
Belridge Lt (over 28�)		22.10	22.60	23.10	23.60	21.6371
Buena Vista Hills		21.20	21.70	22.20	22.70	20.7161
Cal Canal		23.05	23.55	24.05	24.55	22.6290
Coalinga		19.45	19.95	20.45	20.95	18.8613
Cymric		18.85	19.35	19.85	20.35	18.2403
Huntington Beach		19.95	20.45	20.95	21.45	19.4032
Kern River		19.00	19.50	20.00	20.50	18.4113
Kettleman Hills		22.45	22.95	23.45	23.95	22.0290
Lost Hills		22.05	22.55	23.05	23.55	21.5871
McKittrick		19.00	19.50	20.00	20.50	18.4113
Midway Sunset		19.00	19.50	20.00	20.50	18.4113
Montebello		20.75	21.25	21.75	22.25	20.2452
Pt Arguello (onshore)		15.65	16.15	16.65	17.15	15.0613
Railroad Gap		22.15	22.65	23.15	23.65	21.7081
San Ardo		17.55	18.05	18.55	19.05	16.9403
Seal Beach		21.60	22.10	22.60	23.10	21.1371

Note: Prices in $/bbl

Measurement The prices are based upon computation of quantities by mutually acceptable automatic measuring equipment in accordance with the latest ASTM Standards and API Manual of Petroleum Measurement Standards (MPMS) generally accepted in the petroleum industry with deductions for full sediment, water and other impurities.