Chevron Crude Oil Marketing - North America - September 2008 East of the Rockies Summary

North America Crude Oil Marketing - September 2008 Summary East of the Rockies Bulletins 08-E172 to 08-E193, 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 09/02	E174 09/03	E175 09/04	E176 09/05	E177 09/08	E178 09/09	E179 09/10	E180 09/11	E181 09/12	E182 09/15	E183 09/16	Gvty Adj*
Altamont Yellow Wax	102.46	96.71	96.35	94.89	93.23	93.34	90.26	89.58	87.87	88.18	82.71	78.15	B
Bonito Sour (Onshore)	113.75	108.00	107.75	106.25	104.50	104.75	101.75	101.00	99.25	99.50	94.00	89.50	A
Deepwater Sour (Onshore) (30ï¿½)	109.50	103.75	103.50	102.00	100.25	100.50	97.25	96.75	95.00	95.25	89.75	85.25	F,G
East Texas	112.00	106.25	105.75	104.25	102.75	102.75	99.75	99.00	97.25	97.50	92.25	87.50	none
Eugene Island Sour (Onshore)	114.00	108.25	107.75	106.25	104.75	104.75	101.75	101.00	99.25	99.50	94.25	89.50	A
Heavy Louisiana Sweet (Onshore)	117.50	111.75	111.25	109.75	108.25	108.25	105.25	104.50	102.75	103.00	97.75	93.00	A
Light Louisiana Sweet (Onshore)	118.00	112.25	112.00	110.50	108.75	108.75	105.75	105.00	103.50	103.75	98.25	93.75	A
New Mexico Intermediate	112.25	106.50	106.00	104.50	103.00	103.00	100.00	99.25	97.50	97.75	92.50	87.75	none
New Mexico Sour (34ï¿½)	107.50	101.75	101.25	99.75	98.25	98.25	95.25	94.50	92.75	93.00	87.75	83.00	none
North Texas Sweet	112.25	106.50	106.00	104.50	103.00	103.00	100.00	99.25	97.50	97.75	92.50	87.75	none
Oklahoma Sour	107.50	101.75	101.25	99.75	98.25	98.25	95.25	94.50	92.75	93.00	87.75	83.00	none
Oklahoma Sweet	112.25	106.50	106.00	104.50	103.00	103.00	100.00	99.25	97.50	97.75	92.50	87.75	none
Rocky Mountain Condensate	93.46	87.71	87.35	85.89	84.23	84.34	81.26	80.58	78.87	79.18	73.71	69.15	H
South Texas Light Sweet	110.25	104.50	104.00	102.50	101.00	101.00	98.00	97.25	95.50	95.75	90.50	85.75	none
Southwest Wyoming Sweet	101.46	95.71	95.35	93.89	92.23	92.34	89.26	88.58	86.87	87.18	81.71	77.15	E
Uinta Basin Black Wax	101.46	95.71	95.35	93.89	92.23	92.34	89.26	88.58	86.87	87.18	80.71	76.15	B
West Texas Intermediate	112.25	106.50	106.00	104.50	103.00	103.00	100.00	99.25	97.50	97.75	92.50	87.75	none
West Texas Sour (34ï¿½)	107.50	101.75	101.25	99.75	98.25	98.25	95.25	94.50	92.75	93.00	87.75	83.00	none
Western Colorado	102.46	96.71	96.35	94.89	93.23	93.34	90.26	89.58	87.87	88.18	81.71	77.15	B

East of the Rockies	E184 09/17	E185 09/18	E186 09/19	E187 09/22	E188 09/23	E189 09/24	E190 09/25	E191 09/26	E192 09/29	E193 09/30	Mthly Avg
Altamont Yellow Wax	84.16	84.88	91.55	107.92	93.61	92.73	95.02	93.89	83.37	87.64	91.4067
Bonito Sour (Onshore)	95.50	96.25	103.00	119.25	105.00	104.00	106.50	105.25	94.75	99.00	102.7667
Deepwater Sour (Onshore) (30ï¿½)	91.25	92.00	98.75	115.00	100.75	99.75	102.00	101.00	90.50	94.75	98.5000
East Texas	93.50	94.25	101.00	117.25	103.00	102.25	104.50	103.25	92.75	97.00	100.8250
Eugene Island Sour (Onshore)	95.50	96.25	103.00	119.25	105.00	104.25	106.50	105.25	94.75	99.00	102.8250
Heavy Louisiana Sweet (Onshore)	99.00	99.75	106.50	122.75	108.50	107.75	110.00	108.75	98.25	102.50	106.3250
Light Louisiana Sweet (Onshore)	99.75	100.50	107.00	123.50	109.25	108.25	110.50	109.50	99.00	103.25	106.9583
New Mexico Intermediate	93.75	94.50	101.25	117.50	103.25	102.50	104.75	103.50	93.00	97.25	101.0750
New Mexico Sour (34ï¿½)	89.00	89.75	96.50	112.75	98.50	97.75	100.00	98.75	88.25	92.50	96.3250
North Texas Sweet	93.75	94.50	101.25	117.50	103.25	102.50	104.75	103.50	93.00	97.25	101.0750
Oklahoma Sour	89.00	89.75	96.50	112.75	98.50	97.75	100.00	98.75	88.25	92.50	96.3250
Oklahoma Sweet	93.75	94.50	101.25	117.50	103.25	102.50	104.75	103.50	93.00	97.25	101.0750
Rocky Mountain Condensate	75.16	75.88	82.55	98.92	84.61	83.73	86.02	84.89	74.37	78.64	82.4067
South Texas Light Sweet	91.75	92.50	99.25	115.50	101.25	100.50	102.75	101.50	91.00	95.25	99.0750
Southwest Wyoming Sweet	83.16	83.88	90.55	106.92	92.61	91.73	94.02	92.89	82.37	86.64	90.4067
Uinta Basin Black Wax	82.16	82.88	89.55	105.92	91.61	90.73	93.02	91.89	81.37	85.64	89.8733
West Texas Intermediate	93.75	94.50	101.25	117.50	103.25	102.50	104.75	103.50	93.00	97.25	101.0750
West Texas Sour (34ï¿½)	89.00	89.75	96.50	112.75	98.50	97.75	100.00	98.75	88.25	92.50	96.3250
Western Colorado	83.16	83.88	90.55	106.92	92.61	91.73	94.02	92.89	82.37	86.64	90.8733

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.