North America Crude Oil Marketing - June 2006 Summary California Bulletins 06-CA100 to 06-CA120, 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	CA100 06/01	CA101 06/02	CA102 06/05	CA103 06/06	CA104 06/07	CA105 06/08	CA106 06/09	CA107 06/12	CA108 06/13	CA109 06/14	CA110 06/15
Buena Vista Hills		63.95	65.95	66.20	66.10	64.45	64.00	65.30	64.00	62.20	62.80	63.20
Coalinga		59.45	61.45	61.70	61.60	59.95	59.50	60.80	59.50	57.70	58.30	58.70
Huntington Beach		60.70	62.70	62.95	62.85	61.20	60.75	62.05	60.75	58.95	59.55	59.95
Kettleman Hills		67.05	69.05	69.30	69.20	67.55	67.10	68.40	67.10	65.30	65.90	66.30
Lost Hills		65.70	67.70	67.95	67.85	66.20	65.75	67.05	65.75	63.95	64.55	64.95
McKittrick		58.75	60.75	61.00	60.90	59.25	58.80	60.10	58.80	57.00	57.60	58.00
Midway Sunset		58.75	60.75	61.00	60.90	59.25	58.80	60.10	58.80	57.00	57.60	58.00
Pt Arguello (onshore)		55.90	57.90	58.15	58.05	56.40	55.95	57.25	55.95	54.15	54.75	55.15
San Ardo		55.80	57.80	58.05	57.95	56.30	55.85	57.15	55.85	54.05	54.65	55.05
Seal Beach		64.85	66.85	67.10	67.00	65.35	64.90	66.20	64.90	63.10	63.70	64.10

California	API	CA111 06/16	CA112 06/19	CA113 06/21	CA114 06/22	CA115 06/23	CA116 06/26	CA117 06/27	CA118 06/28	CA119 06/29	CA120 06/30	Mthly Avg
Buena Vista Hills		63.55	62.65	63.85	64.35	64.40	65.40	65.55	65.85	67.20	67.60	64.6533
Coalinga		59.05	58.15	59.35	59.85	59.90	60.90	61.05	61.35	62.70	63.10	60.1533
Huntington Beach		60.30	59.40	60.60	61.10	61.15	62.15	62.30	62.60	63.95	64.35	61.4033
Kettleman Hills		66.65	65.75	66.95	67.45	67.50	68.50	68.65	68.95	70.30	70.70	67.7533
Lost Hills		65.30	64.40	65.60	66.10	66.15	67.15	67.30	67.60	68.95	69.35	66.4033
McKittrick		58.35	57.45	58.65	59.15	59.20	60.20	60.35	60.65	62.00	62.40	59.4533
Midway Sunset		58.35	57.45	58.65	59.15	59.20	60.20	60.35	60.65	62.00	62.40	59.4533
Pt Arguello (onshore)		55.50	54.60	55.80	56.30	56.35	57.35	57.50	57.80	59.15	59.55	56.6033
San Ardo		55.40	54.50	55.70	56.20	56.25	57.25	57.40	57.70	59.05	59.45	56.5033
Seal Beach		64.45	63.55	64.75	65.25	65.30	66.30	66.45	66.75	68.10	68.50	65.5533

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.