North America Crude Oil Marketing - July 2010 Summary East of the Rockies Bulletins 10-E127 to 10-E147, 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	E127 07/01	E128 07/02	E129 07/06	E130 07/07	E131 07/08	E132 07/09	E133 07/12	E134 07/13	E135 07/14	E136 07/15	E137 07/16	Gvty Adj*
Altamont Yellow Wax	62.70	61.89	61.73	63.82	65.19	65.84	64.70	66.90	66.79	65.12	64.51	B
Bonito Sour (Onshore)	73.25	72.25	72.25	74.25	75.75	76.25	75.25	77.50	77.25	76.75	76.25	A
Deepwater Sour (Onshore) (30�)	70.75	69.75	69.75	71.75	73.25	73.75	72.75	74.75	74.75	74.25	73.75	F,G
East Texas	69.25	68.50	68.50	70.50	71.75	72.50	71.25	73.50	73.50	73.00	72.50	none
Eugene Island Sour (Onshore)	73.25	72.25	72.25	74.25	75.75	76.25	75.25	77.50	77.25	76.75	76.25	A
Heavy Louisiana Sweet (Onshore)	74.50	73.75	73.50	75.75	77.00	77.75	76.50	78.75	78.50	78.25	77.50	A
Light Louisiana Sweet (Onshore)	75.00	74.25	74.00	76.00	77.50	78.00	77.00	79.25	79.00	78.50	78.00	A
New Mexico Intermediate	69.50	68.75	68.75	70.75	72.00	72.75	71.50	73.75	73.75	73.25	72.75	none
New Mexico Sour (34�)	64.75	64.00	64.00	66.00	67.25	68.00	66.75	69.00	69.00	68.50	68.00	none
North Texas Sweet	69.50	68.75	68.75	70.75	72.00	72.75	71.50	73.75	73.75	73.25	72.75	none
Oklahoma Sour	64.75	64.00	64.00	66.00	67.25	68.00	66.75	69.00	69.00	68.50	68.00	none
Oklahoma Sweet	69.50	68.75	68.75	70.75	72.00	72.75	71.50	73.75	73.75	73.25	72.75	none
Rocky Mountain Condensate	59.45	58.64	58.48	60.57	61.94	62.59	61.45	63.65	63.54	62.37	61.76	H
South Texas Light Sweet	67.50	66.75	66.75	68.75	70.00	70.75	69.50	71.75	71.75	71.25	70.75	none
Southwest Wyoming Sweet	63.95	63.14	62.98	65.07	66.44	67.09	65.95	68.15	68.04	66.97	66.36	E
Uinta Basin Black Wax	61.70	60.89	60.73	62.82	64.19	64.84	63.70	65.90	65.79	64.12	63.51	B
West Texas Intermediate	69.50	68.75	68.75	70.75	72.00	72.75	71.50	73.75	73.75	73.25	72.75	none
West Texas Sour (34�)	64.75	64.00	64.00	66.00	67.25	68.00	66.75	69.00	69.00	68.50	68.00	none
Western Colorado	60.45	59.64	59.48	61.57	62.94	63.59	62.45	64.65	64.54	63.37	62.76	B

East of the Rockies	E138 07/19	E139 07/20	E140 07/21	E141 07/22	E142 07/23	E143 07/26	E144 07/27	E145 07/28	E146 07/29	E147 07/30	Gvty Adj*	Mthly Avg
Altamont Yellow Wax	65.04	65.94	65.06	67.80	67.48	67.48	66.00	65.49	66.86	67.45		65.2442
Bonito Sour (Onshore)	76.75	77.75	76.75	79.50	79.25	79.25	77.75	77.25	78.50	79.25		76.4032
Deepwater Sour (Onshore) (30�)	74.25	75.25	74.25	77.00	76.75	76.75	75.25	74.75	76.00	76.75		73.8952
East Texas	73.00	73.75	73.00	75.75	75.50	75.50	74.00	73.50	74.75	75.25		72.5968
Eugene Island Sour (Onshore)	76.75	77.75	76.75	79.50	79.25	79.25	77.75	77.25	78.50	79.25		76.4032
Heavy Louisiana Sweet (Onshore)	78.00	79.00	78.25	81.00	80.50	80.50	79.00	78.50	80.00	80.50		77.7500
Light Louisiana Sweet (Onshore)	78.50	79.50	78.50	81.25	81.00	81.00	79.50	79.00	80.25	81.00		78.1855
New Mexico Intermediate	73.25	74.00	73.25	76.00	75.75	75.75	74.25	73.75	75.00	75.50		72.8468
New Mexico Sour (34�)	68.50	69.25	68.50	71.25	71.00	71.00	69.50	69.00	70.25	70.75		68.0968
North Texas Sweet	73.25	74.00	73.25	76.00	75.75	75.75	74.25	73.75	75.00	75.50		72.8468
Oklahoma Sour	68.50	69.25	68.50	71.25	71.00	71.00	69.50	69.00	70.25	70.75		68.0968
Oklahoma Sweet	73.25	74.00	73.25	76.00	75.75	75.75	74.25	73.75	75.00	75.50		72.8468
Rocky Mountain Condensate	62.29	63.19	62.31	65.05	64.73	64.73	63.25	62.74	64.11	64.70		62.2684
South Texas Light Sweet	71.25	72.00	71.25	74.00	73.75	73.75	72.25	71.75	73.00	73.50		70.8468
Southwest Wyoming Sweet	66.89	67.79	66.91	69.65	69.33	69.33	67.85	67.34	68.71	69.30		66.8232
Uinta Basin Black Wax	64.04	64.94	64.06	66.80	66.48	66.48	65.00	64.49	65.86	66.45		64.2442
West Texas Intermediate	73.25	74.00	73.25	76.00	75.75	75.75	74.25	73.75	75.00	75.50		72.8468
West Texas Sour (34�)	68.50	69.25	68.50	71.25	71.00	71.00	69.50	69.00	70.25	70.75		68.0968
Western Colorado	63.29	64.19	63.31	66.05	65.73	65.73	64.25	63.74	65.11	65.70		63.2684

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.