North America Crude Oil Marketing - September 2009 Summary California Bulletins 09-CA168 to 09-CA188, 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	CA168 09/01	CA169 09/02	CA170 09/03	CA171 09/04	CA172 09/08	CA173 09/09	CA174 09/10	CA175 09/11	CA176 09/14	CA177 09/15	CA178 09/16
Buena Vista Hills		66.20	66.20	66.10	66.15	69.25	69.45	70.10	67.45	67.00	69.10	70.65
Coalinga		60.80	60.80	60.70	60.75	63.85	64.05	64.70	62.05	61.60	63.70	65.25
Huntington Beach		60.60	60.60	60.50	60.55	63.65	63.85	64.50	61.85	61.40	63.50	65.05
Kettleman Hills		69.70	69.70	69.60	69.65	72.75	72.95	73.60	70.95	70.50	72.60	74.15
Lost Hills		67.95	67.95	67.85	67.90	71.00	71.20	71.85	69.20	68.75	70.85	72.40
McKittrick		60.05	60.05	59.95	60.00	63.10	63.30	63.95	61.30	60.85	62.95	64.50
Midway Sunset		60.05	60.05	59.95	60.00	63.10	63.30	63.95	61.30	60.85	62.95	64.50
Seal Beach		65.25	65.25	65.15	65.20	68.30	68.50	69.15	66.50	66.05	68.15	69.70

California	API	CA179 09/17	CA180 09/18	CA181 09/21	CA182 09/22	CA183 09/23	CA184 09/24	CA185 09/25	CA186 09/28	CA187 09/29	CA188 09/30	Mthly Avg
Buena Vista Hills		70.60	70.15	67.80	69.65	67.10	64.00	64.15	64.95	64.80	68.70	67.3833
Coalinga		65.20	64.75	62.40	64.25	61.70	58.60	58.75	59.55	59.40	63.30	61.9833
Huntington Beach		65.00	64.55	62.20	64.05	61.50	58.40	58.55	59.35	59.20	63.10	61.7833
Kettleman Hills		74.10	73.65	71.30	73.15	70.60	67.50	67.65	68.45	68.30	72.20	70.8833
Lost Hills		72.35	71.90	69.55	71.40	68.85	65.75	65.90	66.70	66.55	70.45	69.1333
McKittrick		64.45	64.00	61.65	63.50	60.95	57.85	58.00	58.80	58.65	62.55	61.2333
Midway Sunset		64.45	64.00	61.65	63.50	60.95	57.85	58.00	58.80	58.65	62.55	61.2333
Seal Beach		69.65	69.20	66.85	68.70	66.15	63.05	63.20	64.00	63.85	67.75	66.4333

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.