North America Crude Oil Marketing - February 2010 Summary California Bulletins 10-CA20 to 10-CA38, 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	CA20 02/01	CA21 02/02	CA22 02/03	CA23 02/04	CA24 02/05	CA25 02/08	CA26 02/09	CA27 02/10	CA28 02/11	CA29 02/12
Buena Vista Hills		73.05	75.95	75.70	71.85	69.90	70.60	72.70	73.45	74.20	73.05
Coalinga		68.20	71.10	70.85	67.00	65.05	65.75	67.85	68.60	69.35	68.20
Huntington Beach		67.15	70.05	69.80	65.95	64.00	64.70	66.80	67.55	68.30	67.15
Kettleman Hills		76.20	79.10	78.85	75.00	73.05	73.75	75.85	76.60	77.35	76.20
Lost Hills		74.60	77.50	77.25	73.40	71.45	72.15	74.25	75.00	75.75	74.60
McKittrick		67.50	70.40	70.15	66.30	64.35	65.05	67.15	67.90	68.65	67.50
Midway Sunset		67.50	70.40	70.15	66.30	64.35	65.05	67.15	67.90	68.65	67.50
Seal Beach		71.50	74.40	74.15	70.30	68.35	69.05	71.15	71.90	72.65	71.50

California	API	CA30 02/16	CA31 02/17	CA32 02/18	CA33 02/19	CA34 02/22	CA35 02/23	CA36 02/24	CA37 02/25	CA38 02/26	Mthly Avg
Buena Vista Hills		75.95	76.25	78.00	78.75	79.10	77.80	78.95	77.10	78.60	75.1643
Coalinga		71.10	71.40	73.15	73.90	74.25	72.95	74.10	72.25	73.75	70.3143
Huntington Beach		70.05	70.35	72.10	72.85	73.20	71.90	73.05	71.20	72.70	69.2643
Kettleman Hills		79.10	79.40	81.15	81.90	82.25	80.95	82.10	80.25	81.75	78.3143
Lost Hills		77.50	77.80	79.55	80.30	80.65	79.35	80.50	78.65	80.15	76.7143
McKittrick		70.40	70.70	72.45	73.20	73.55	72.25	73.40	71.55	73.05	69.6143
Midway Sunset		70.40	70.70	72.45	73.20	73.55	72.25	73.40	71.55	73.05	69.6143
Seal Beach		74.40	74.70	76.45	77.20	77.55	76.25	77.40	75.55	77.05	73.6143

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.