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

North America Crude Oil Marketing - September 2006 Summary East of the Rockies Bulletins 06-E172 to 06-E191, 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	E172 09/01	E173 09/05	E174 09/06	E175 09/07	E176 09/08	E177 09/11	E178 09/12	E179 09/13	E180 09/14	E181 09/15	E182 09/18	Gvty Adj*
Altamont Yellow Wax	63.19	62.60	61.50	61.32	60.25	59.61	57.76	57.97	57.22	57.33	57.80	B
Bonito Sour (Onshore)	65.50	65.00	64.00	63.75	62.75	62.25	60.25	60.50	59.75	59.75	60.25	A
Deepwater Sour (Onshore) (30ï¿½)	61.00	59.50	58.50	58.25	57.25	56.75	54.75	55.00	54.25	54.25	54.75	F,G
East Texas	65.50	65.00	64.00	63.75	62.75	62.00	60.25	60.50	59.75	59.75	60.25	none
Eugene Island Sour (Onshore)	65.25	64.75	63.75	63.50	62.50	61.75	60.00	60.00	59.25	59.50	60.00	A
Heavy Louisiana Sweet (Onshore)	68.75	69.00	68.00	67.75	66.75	66.00	64.25	64.50	63.75	63.75	64.25	A
Light Louisiana Sweet (Onshore)	69.25	69.25	68.25	68.00	67.00	66.25	64.50	64.75	64.00	64.00	64.50	A
New Mexico Intermediate	65.75	65.25	64.25	64.00	63.00	62.25	60.50	60.75	60.00	60.00	60.50	none
New Mexico Sour (34ï¿½)	61.00	60.50	59.50	59.25	58.25	57.50	55.75	56.00	55.25	55.25	55.75	none
North Texas Sweet	65.75	65.25	64.25	64.00	63.00	62.25	60.50	60.75	60.00	60.00	60.50	none
Oklahoma Sour	63.55	63.07	61.97	61.79	60.72	60.08	58.23	58.44	57.69	57.80	58.27	none
Oklahoma Sweet	67.84	67.22	66.12	65.94	64.87	64.23	62.38	62.59	61.84	61.95	62.42	none
South Texas Light Sweet	63.75	63.25	62.25	62.00	61.00	60.25	58.50	58.75	58.00	58.00	58.50	none
Southwest Wyoming Sweet	69.44	68.85	67.75	67.57	66.50	65.86	64.01	64.22	63.47	63.58	64.05	E
Uinta Basin Black Wax	58.89	58.30	56.95	56.77	55.70	55.06	53.21	53.42	52.67	52.78	53.25	B
West Texas Intermediate	65.75	65.25	64.25	64.00	63.00	62.25	60.50	60.75	60.00	60.00	60.50	none
West Texas Sour (34ï¿½)	61.00	60.50	59.50	59.25	58.25	57.50	55.75	56.00	55.25	55.25	55.75	none
Western Colorado	64.19	63.60	62.50	62.32	61.25	60.61	58.76	58.97	58.22	58.33	58.80	B

East of the Rockies	E183 09/19	E184 09/20	E185 09/21	E186 09/22	E187 09/25	E188 09/26	E189 09/27	E190 09/28	E191 09/29	Mthly Avg
Altamont Yellow Wax	55.66	54.46	55.59	54.55	55.45	55.01	56.96	56.76	56.91	58.2880
Bonito Sour (Onshore)	58.25	57.00	58.00	57.00	58.00	57.50	59.50	59.25	59.50	60.7583
Deepwater Sour (Onshore) (30ï¿½)	52.75	51.50	52.50	51.50	52.50	52.00	54.00	53.75	54.00	55.3917
East Texas	58.00	57.00	58.00	57.00	57.75	57.50	59.50	59.25	59.25	60.7167
Eugene Island Sour (Onshore)	57.75	56.50	57.75	56.75	57.50	57.25	59.00	59.00	59.00	60.4333
Heavy Louisiana Sweet (Onshore)	62.00	61.00	62.00	61.00	62.00	61.50	63.50	63.25	63.25	64.6250
Light Louisiana Sweet (Onshore)	62.25	61.25	62.25	61.25	62.25	61.75	63.75	63.50	63.50	64.9083
New Mexico Intermediate	58.25	57.25	58.25	57.25	58.00	57.75	59.75	59.50	59.50	60.9667
New Mexico Sour (34ï¿½)	53.50	52.50	53.50	52.50	53.25	53.00	55.00	54.75	54.75	56.2167
North Texas Sweet	58.25	57.25	58.25	57.25	58.00	57.75	59.75	59.50	59.50	60.9667
Oklahoma Sour	56.13	54.93	56.06	55.02	55.92	55.48	57.43	57.23	57.38	58.7433
Oklahoma Sweet	60.28	59.08	60.21	59.17	60.07	59.63	61.58	61.38	61.53	62.9120
South Texas Light Sweet	56.25	55.25	56.25	55.25	56.00	55.75	57.75	57.50	57.50	58.9667
Southwest Wyoming Sweet	61.91	60.71	61.84	60.80	61.70	61.26	63.21	63.01	63.16	64.5380
Uinta Basin Black Wax	51.11	49.91	51.04	50.00	50.90	50.46	52.41	52.21	52.36	53.7797
West Texas Intermediate	58.25	57.25	58.25	57.25	58.00	57.75	59.75	59.50	59.50	60.9667
West Texas Sour (34ï¿½)	53.50	52.50	53.50	52.50	53.25	53.00	55.00	54.75	54.75	56.2167
Western Colorado	56.66	55.46	56.59	55.55	56.45	56.01	57.96	57.76	57.91	59.2880

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.