Chevron Crude Oil Marketing - North America - August 2005 East of the Rockies Summary

North America Crude Oil Marketing - August 2005 Summary East of the Rockies Bulletins 05-E148 to 05-E170, 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	E148 08/01	E149 08/02	E150 08/03	E151 08/04	E152 08/05	E153 08/08	E154 08/09	E155 08/10	E156 08/11	E157 08/12	E158 08/15	E159 08/16	Gvty Adj*
Altamont Yellow Wax	61.07	61.39	60.36	60.88	61.81	63.44	62.57	64.40	65.30	66.36	65.77	65.58	B
Bonito Sour (Onshore)	57.75	58.00	57.00	57.50	58.50	60.25	59.25	61.00	62.00	63.00	62.50	62.25	A
Deepwater Sour (Onshore) (30ï¿½)	54.75	55.00	54.00	54.50	55.50	57.00	56.25	58.00	59.00	60.00	59.50	59.25	F,G
East Texas	58.00	58.25	57.25	57.75	58.75	60.50	59.50	61.25	62.25	63.25	63.00	62.50	none
Eugene Island Sour (Onshore)	57.75	58.00	57.00	57.50	58.50	60.00	59.25	61.00	62.00	63.00	62.50	62.25	A
Heavy Louisiana Sweet (Onshore)	59.50	59.75	58.75	59.25	60.25	61.75	61.00	62.75	63.75	64.75	64.25	64.00	A
Light Louisiana Sweet (Onshore)	60.25	60.75	59.50	60.25	61.00	62.75	61.75	63.75	64.50	65.50	65.00	64.75	A
New Mexico Intermediate	60.41	60.73	59.70	60.22	61.15	62.78	61.91	63.74	64.64	65.70	65.11	64.92	none
New Mexico Sour (34ï¿½)	57.82	58.14	57.11	57.63	58.56	60.19	59.32	61.15	62.05	63.11	62.52	62.33	none
North Texas Sweet	58.25	58.50	57.50	58.00	59.00	60.75	59.75	61.50	62.50	63.50	63.25	62.75	none
Oklahoma Sour	57.82	58.14	57.11	57.63	58.56	60.19	59.32	61.15	62.05	63.11	62.52	62.33	none
Oklahoma Sweet	60.24	60.56	59.53	60.05	60.98	62.61	61.74	63.57	64.47	65.53	64.94	64.75	none
South Texas Light Sweet	56.25	56.50	55.50	56.00	57.00	58.75	57.75	59.50	60.50	61.50	61.25	60.75	none
Southwest Wyoming Sweet	62.62	62.94	61.91	62.43	63.36	64.99	64.12	65.95	66.85	67.91	67.32	67.13	E
Uinta Basin Black Wax	58.32	58.64	57.61	58.13	59.06	60.69	59.82	61.65	62.55	63.61	63.02	62.83	B
West Texas Intermediate	58.25	58.50	57.50	58.00	59.00	60.75	59.75	61.50	62.50	63.50	63.25	62.75	none
West Texas Sour (34ï¿½)	53.50	53.75	52.75	53.25	54.25	56.00	55.00	56.75	57.75	58.75	58.50	58.00	none
Western Colorado	62.36	62.68	61.65	62.17	63.10	64.73	63.86	65.69	66.59	67.65	67.06	66.87	B

East of the Rockies	E160 08/17	E161 08/18	E162 08/19	E163 08/22	E164 08/23	E165 08/24	E166 08/25	E167 08/26	E168 08/29	E169 08/30	E170 08/31	Mthly Avg
Altamont Yellow Wax	62.75	62.77	64.85	65.15	65.21	66.82	66.99	65.63	66.70	69.31	68.44	64.5435
Bonito Sour (Onshore)	59.50	59.50	61.50	61.75	62.00	63.50	63.75	62.25	63.50	66.00	65.25	61.2258
Deepwater Sour (Onshore) (30ï¿½)	56.50	56.50	58.50	58.75	58.75	60.50	60.50	59.25	60.25	63.00	62.00	58.1855
East Texas	59.50	59.75	61.75	62.00	62.00	63.75	64.00	62.50	63.50	66.25	65.00	61.4435
Eugene Island Sour (Onshore)	59.25	59.50	61.50	61.75	61.75	63.50	63.50	62.25	63.25	66.00	65.00	61.1774
Heavy Louisiana Sweet (Onshore)	61.00	61.25	63.25	63.50	63.50	65.25	65.25	64.00	65.00	67.75	66.75	62.9274
Light Louisiana Sweet (Onshore)	62.00	62.00	64.00	64.50	64.50	66.00	66.25	65.00	66.00	68.50	67.75	63.7823
New Mexico Intermediate	62.09	62.11	64.19	64.49	64.55	66.16	66.33	64.97	66.04	68.65	67.78	63.8835
New Mexico Sour (34ï¿½)	59.50	59.52	61.60	61.90	61.96	63.57	63.74	62.38	63.45	66.06	65.19	61.2935
North Texas Sweet	59.75	60.00	62.00	62.25	62.25	64.00	64.25	62.75	63.75	66.50	65.25	61.6935
Oklahoma Sour	59.50	59.52	61.60	61.90	61.96	63.57	63.74	62.38	63.45	66.06	65.19	61.2935
Oklahoma Sweet	61.92	61.94	64.02	64.32	64.38	65.99	66.16	64.80	65.87	68.48	67.61	63.7135
South Texas Light Sweet	57.75	58.00	60.00	60.25	60.25	62.00	62.25	60.75	61.75	64.50	63.25	59.6935
Southwest Wyoming Sweet	64.30	64.32	66.40	66.70	66.76	68.37	68.54	67.18	68.25	70.86	69.99	66.0935
Uinta Basin Black Wax	60.00	60.02	62.10	62.40	62.46	64.07	64.24	62.88	63.95	66.56	65.69	61.7935
West Texas Intermediate	59.75	60.00	62.00	62.25	62.25	64.00	64.25	62.75	63.75	66.50	65.25	61.6935
West Texas Sour (34ï¿½)	55.00	55.25	57.25	57.50	57.50	59.25	59.50	58.00	59.00	61.75	60.50	56.9435
Western Colorado	64.04	64.06	66.14	66.44	66.50	68.11	68.28	66.92	67.99	70.60	69.73	65.8335

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.