North America Crude Oil Marketing - March 2008 Summary California Bulletins 08-CA42 to 08-CA61, 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	CA42 03/03	CA43 03/04	CA44 03/05	CA45 03/06	CA46 03/07	CA47 03/10	CA48 03/11	CA49 03/12	CA50 03/13	CA51 03/14	CA52 03/17
Buena Vista Hills		96.10	93.15	98.40	99.35	99.05	101.80	102.65	103.80	104.45	104.30	99.80
Coalinga		90.65	87.70	92.95	93.90	93.60	96.35	97.20	98.35	99.00	98.85	94.35
Huntington Beach		92.25	89.30	94.55	95.50	95.20	97.95	98.80	99.95	100.60	100.45	95.95
Kettleman Hills		99.65	96.70	101.95	102.90	102.60	105.35	106.20	107.35	108.00	107.85	103.35
Lost Hills		97.85	94.90	100.15	101.10	100.80	103.55	104.40	105.55	106.20	106.05	101.55
McKittrick		89.90	86.95	92.20	93.15	92.85	95.60	96.45	97.60	98.25	98.10	93.60
Midway Sunset		89.90	86.95	92.20	93.15	92.85	95.60	96.45	97.60	98.25	98.10	93.60
Seal Beach		97.15	94.20	99.45	100.40	100.10	102.85	103.70	104.85	105.50	105.35	100.85

California	API	CA53 03/18	CA54 03/19	CA55 03/20	CA56 03/24	CA57 03/25	CA58 03/26	CA59 03/27	CA60 03/28	CA61 03/31		Mthly Avg
Buena Vista Hills		103.55	98.60	95.95	95.00	95.35	100.05	101.70	99.75	95.70		99.1468
Coalinga		98.10	93.15	90.50	89.55	89.90	94.60	96.25	94.30	90.25		93.6968
Huntington Beach		99.70	94.75	92.10	91.15	91.50	96.20	97.85	95.90	91.85		95.2968
Kettleman Hills		107.10	102.15	99.50	98.55	98.90	103.60	105.25	103.30	99.25		102.6968
Lost Hills		105.30	100.35	97.70	96.75	97.10	101.80	103.45	101.50	97.45		100.8968
McKittrick		97.35	92.40	89.75	88.80	89.15	93.85	95.50	93.55	89.50		92.9468
Midway Sunset		97.35	92.40	89.75	88.80	89.15	93.85	95.50	93.55	89.50		92.9468
Seal Beach		104.60	99.65	97.00	96.05	96.40	101.10	102.75	100.80	96.75		100.1968

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.