North America Crude Oil Marketing - October 2006 Summary California Bulletins 06-CA181 to 06-CA202, 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	CA181 10/02	CA182 10/03	CA183 10/04	CA184 10/05	CA185 10/06	CA186 10/09	CA187 10/10	CA188 10/11	CA189 10/12	CA190 10/13	CA191 10/16	CA192 10/17
Buena Vista Hills		54.85	52.50	53.20	53.80	53.55	53.75	52.30	51.40	51.65	52.35	53.70	52.70
Coalinga		50.05	47.70	48.40	49.00	48.75	48.95	47.50	46.60	46.85	47.55	48.90	47.90
Huntington Beach		51.40	49.05	49.75	50.35	50.10	50.30	48.85	47.95	48.20	48.90	50.25	49.25
Kettleman Hills		58.10	55.75	56.45	57.05	56.80	57.00	55.55	54.65	54.90	55.60	56.95	55.95
Lost Hills		56.70	54.35	55.05	55.65	55.40	55.60	54.15	53.25	53.50	54.20	55.55	54.55
McKittrick		49.35	47.00	47.70	48.30	48.05	48.25	46.80	45.90	46.15	46.85	48.20	47.20
Midway Sunset		49.35	47.00	47.70	48.30	48.05	48.25	46.80	45.90	46.15	46.85	48.20	47.20
Pt Arguello (onshore)		46.40	44.05	44.75	45.35	45.10	45.30	43.85	42.95	43.20	43.90	45.25	44.25
San Ardo		46.30	43.95	44.65	45.25	45.00	45.20	43.75	42.85	43.10	43.80	45.15	44.15
Seal Beach		55.80	53.45	54.15	54.75	54.50	54.70	53.25	52.35	52.60	53.30	54.65	53.65

California	API	CA193 10/18	CA194 10/19	CA195 10/20	CA196 10/23	CA197 10/24	CA198 10/25	CA199 10/26	CA200 10/27	CA201 10/30	CA202 10/31		Mthly Avg
Buena Vista Hills		51.40	52.20	50.50	50.90	51.20	53.20	52.65	53.55	51.65	52.40		52.6468
Coalinga		46.60	47.40	45.70	46.10	46.40	48.40	47.85	48.75	46.85	47.60		47.8468
Huntington Beach		47.95	48.75	47.05	47.45	47.75	49.75	49.20	50.10	48.20	48.95		49.1968
Kettleman Hills		54.65	55.45	53.75	54.15	54.45	56.45	55.90	56.80	54.90	55.65		55.8968
Lost Hills		53.25	54.05	52.35	52.75	53.05	55.05	54.50	55.40	53.50	54.25		54.4968
McKittrick		45.90	46.70	45.00	45.40	45.70	47.70	47.15	48.05	46.15	46.90		47.1468
Midway Sunset		45.90	46.70	45.00	45.40	45.70	47.70	47.15	48.05	46.15	46.90		47.1468
Pt Arguello (onshore)		42.95	43.75	42.05	42.45	42.75	44.75	44.20	45.10	43.20	43.95		44.1968
San Ardo		42.85	43.65	41.95	42.35	42.65	44.65	44.10	45.00	43.10	43.85		44.0968
Seal Beach		52.35	53.15	51.45	51.85	52.15	54.15	53.60	54.50	52.60	53.35		53.5968

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.