Chevron Crude Oil Marketing - North America - August 2006 East of the Rockies Summary

North America Crude Oil Marketing - August 2006 Summary East of the Rockies Bulletins 06-E149 to 06-E171, with Monthly Averages

Chevron has changed its posted prices as shown below:

Effective 7:00 a.m. on the date(s) indicated, and subject to change without notice and subject to the terms and conditions of its division orders or other contracts, Chevron will pay the following prices ($/bbl) for oil at 40.0° API and above, except as noted below, delivered into pipelines for its account into the custody of its authorized carrier or receiving agent. The posted prices for crude oil transported by truck or barge will be the following prices less appropriate trucking or barge cost. The posted prices for crude oil received off shore will be the following prices less appropriate transportation and quality costs to get the crude on shore. Regarding technical issues of Chevron's most recent posted prices, call Christine Mathwig 832-854-5159.

POSTINGS WILL BE DISCONTINUED AS OF 8/1/19

* Prices are subject to a Gravity Adjustment Scale

East of the Rockies	E149 08/01	E150 08/02	E151 08/03	E152 08/04	E153 08/07	E154 08/08	E155 08/09	E156 08/10	E157 08/11	E158 08/14	E159 08/15	E160 08/16	Gvty Adj*
Altamont Yellow Wax	71.41	72.31	71.96	71.26	73.48	72.81	70.35	68.00	68.35	67.53	67.05	65.89	B
Bonito Sour (Onshore)	71.25	72.25	71.75	71.25	73.25	72.75	72.75	70.50	70.75	70.00	69.50	68.25	A
Deepwater Sour (Onshore) (30ï¿½)	66.75	67.50	67.25	66.50	68.75	68.00	68.25	65.75	66.25	65.25	64.75	63.75	F,G
East Texas	71.25	72.25	72.00	71.25	73.50	72.75	72.75	70.50	70.75	70.00	69.50	68.25	none
Eugene Island Sour (Onshore)	71.00	71.75	71.50	70.75	73.00	72.25	72.50	70.00	70.50	69.50	69.00	68.00	A
Heavy Louisiana Sweet (Onshore)	74.50	75.50	75.00	74.50	76.50	76.00	76.00	73.75	74.00	73.25	72.75	71.50	A
Light Louisiana Sweet (Onshore)	75.00	76.00	75.50	74.75	77.00	76.50	76.50	74.00	74.50	73.50	73.25	72.00	A
New Mexico Intermediate	71.50	72.50	72.25	71.50	73.75	73.00	73.00	70.75	71.00	70.25	69.75	68.50	none
New Mexico Sour (34ï¿½)	66.75	67.75	67.50	66.75	69.00	68.25	68.25	66.00	66.25	65.50	65.00	63.75	none
North Texas Sweet	71.50	72.50	72.25	71.50	73.75	73.00	73.00	70.75	71.00	70.25	69.75	68.50	none
Oklahoma Sour	69.27	70.17	69.82	69.12	71.34	70.67	70.71	68.36	68.71	67.89	67.41	66.25	none
Oklahoma Sweet	73.56	74.46	74.11	73.41	75.63	74.96	75.00	72.65	73.00	72.18	71.70	70.54	none
South Texas Light Sweet	69.50	70.50	70.25	69.50	71.75	71.00	71.00	68.75	69.00	68.25	67.75	66.50	none
Southwest Wyoming Sweet	75.16	76.06	75.71	75.01	77.23	76.56	76.60	74.25	74.60	73.78	73.30	72.14	E
Uinta Basin Black Wax	65.41	66.31	65.96	65.26	67.48	66.81	66.05	63.70	64.05	63.23	62.75	61.59	B
West Texas Intermediate	71.50	72.50	72.25	71.50	73.75	73.00	73.00	70.75	71.00	70.25	69.75	68.50	none
West Texas Sour (34ï¿½)	66.75	67.75	67.50	66.75	69.00	68.25	68.25	66.00	66.25	65.50	65.00	63.75	none
Western Colorado	69.91	70.81	70.46	69.76	71.98	71.31	71.35	69.00	69.35	68.53	68.05	66.89	B

East of the Rockies	E161 08/17	E162 08/18	E163 08/21	E164 08/22	E165 08/23	E166 08/24	E167 08/25	E168 08/28	E169 08/29	E170 08/30	E171 08/31	Mthly Avg
Altamont Yellow Wax	64.06	65.14	66.45	66.63	65.76	66.36	66.51	64.61	63.71	64.03	64.26	67.7561
Bonito Sour (Onshore)	66.50	67.50	68.75	69.00	68.25	68.75	69.00	67.00	66.00	66.50	66.75	69.5242
Deepwater Sour (Onshore) (30ï¿½)	61.75	63.00	64.25	64.50	63.50	64.25	64.25	62.50	61.50	61.75	62.00	64.9032
East Texas	66.50	67.50	68.75	69.00	68.25	68.75	69.00	67.00	66.25	66.50	66.75	69.5484
Eugene Island Sour (Onshore)	66.00	67.25	68.50	68.75	67.75	68.50	68.50	66.75	65.75	66.00	66.25	69.1532
Heavy Louisiana Sweet (Onshore)	69.75	70.75	72.00	72.25	71.50	72.00	72.25	70.25	69.25	69.75	70.00	72.7742
Light Louisiana Sweet (Onshore)	70.25	71.25	72.50	72.75	71.75	72.50	72.50	70.75	69.75	70.00	70.25	73.1855
New Mexico Intermediate	66.75	67.75	69.00	69.25	68.50	69.00	69.25	67.25	66.50	66.75	67.00	69.7984
New Mexico Sour (34ï¿½)	62.00	63.00	64.25	64.50	63.75	64.25	64.50	62.50	61.75	62.00	62.25	65.0484
North Texas Sweet	66.75	67.75	69.00	69.25	68.50	69.00	69.25	67.25	66.50	66.75	67.00	69.7984
Oklahoma Sour	64.42	65.50	66.81	66.99	66.12	66.72	66.87	64.97	64.07	64.39	64.62	67.4710
Oklahoma Sweet	68.71	69.79	71.10	71.28	70.41	71.01	71.16	69.26	68.36	68.68	68.91	71.7610
South Texas Light Sweet	64.75	65.75	67.00	67.25	66.50	67.00	67.25	65.25	64.50	64.75	65.00	67.7984
Southwest Wyoming Sweet	70.31	71.39	72.70	72.88	72.01	72.61	72.76	70.86	69.96	70.28	70.51	73.3610
Uinta Basin Black Wax	59.76	60.84	62.15	62.33	61.46	62.06	62.21	60.31	59.41	59.73	59.96	63.0174
West Texas Intermediate	66.75	67.75	69.00	69.25	68.50	69.00	69.25	67.25	66.50	66.75	67.00	69.7984
West Texas Sour (34ï¿½)	62.00	63.00	64.25	64.50	63.75	64.25	64.50	62.50	61.75	62.00	62.25	65.0484
Western Colorado	65.06	66.14	67.45	67.63	66.76	67.36	67.51	65.61	64.71	65.03	65.26	68.1110

Note: Prices in $/bbl

Measurement
The prices are based upon computation of quantities by mutually acceptable automatic measuring equipment in accordance with provisions of API Standard 1101 or from 100% tank tables with corrections of volume and gravity for temperature to 60°F in accordance with ASTM D-1250 and supplements thereto, if any, and with deductions for full sediment, water and other impurities. Only merchantable oil acceptable to the receiving agency designated by Chevron and containing not more than 1% sediment and water will be accepted.