North America Crude Oil Marketing - April 2013 Summary East of the Rockies Bulletins 13-E61 to 13-E82, 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	E61 04/01	E62 04/02	E63 04/03	E64 04/04	E65 04/05	E66 04/08	E67 04/09	E68 04/10	E69 04/11	E70 04/12	E71 04/15	E72 04/16	Gvty Adj*
Altamont Yellow Wax	81.57	81.69	78.95	77.76	77.2	77.86	78.7	79.14	78.01	75.79	73.21	73.22
Rocky Mountain Condensate	86.07	86.19	83.45	82.26	81.7	82.36	83.2	83.64	82.51	80.29	77.71	77.72
Southwest Wyoming Sweet	89.57	89.69	86.95	85.76	85.2	85.86	86.7	87.14	86.01	83.79	81.21	81.22
Uinta Basin Black Wax	80.57	80.69	77.95	76.76	76.2	76.86	77.7	78.14	77.01	74.79	72.21	72.22
Western Colorado	87.07	87.19	84.45	83.26	82.7	83.36	84.2	84.64	83.51	81.29	78.71	78.72

East of the Rockies	E73 04/17	E74 04/18	E75 04/19	E76 04/22	E77 04/23	E78 04/24	E79 04/25	E80 04/26	E81 04/29	E82 04/30		Gvty Adj*	Mthly Avg
Altamont Yellow Wax	71.18	72.23	72.51	73.26	73.68	75.93	78.14	77.5	79	77.96			76.3497
Rocky Mountain Condensate	75.68	76.73	77.01	77.76	78.18	80.43	82.64	82	83.5	82.46			80.8497
Southwest Wyoming Sweet	79.18	80.23	80.51	81.26	81.68	83.93	86.14	85.5	87	85.96			84.3497
Uinta Basin Black Wax	70.18	71.23	71.51	72.26	72.68	74.93	77.14	76.5	78	76.96			75.3497
Western Colorado	76.68	77.73	78.01	78.76	79.18	81.43	83.64	83	84.5	83.46			81.8497

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.