North America Crude Oil Marketing - September 2018 Summary East of the Rockies Bulletins 18-E170 to 18-E188, 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	E170 09/04	E171 09/05	E172 09/06	E173 09/07	E174 09/10	E175 09/11	E176 09/12	E177 09/13	E178 09/14	E179 09/17	Gvty Adj*
Altamont Yellow Wax	59.97	58.82	57.87	57.85	57.64	59.35	60.47	58.69	59.09	59.01
Rocky Mountain Condensate	62.87	61.72	60.77	60.75	60.54	62.25	63.37	61.59	61.99	61.91
Southwest Wyoming Sweet	66.12	64.97	64.02	64	63.79	65.5	66.62	64.84	65.24	65.16
Uinta Basin Black Wax	58.97	57.82	56.87	56.85	56.64	58.35	59.47	57.69	58.09	58.01
Western Colorado	62.87	61.72	60.77	60.75	60.54	62.25	63.37	61.59	61.99	61.91

East of the Rockies	E180 09/18	E181 09/19	E182 09/20	E183 09/21	E184 09/24	E185 09/25	E186 09/26	E187 09/27	E188 09/28	Gvty Adj*	Mthly Avg
Altamont Yellow Wax	59.95	61.22	60.9	60.88	62.18	62.38	61.67	62.22	63.35		60.1850
Rocky Mountain Condensate	62.85	64.12	63.8	63.78	65.08	65.28	64.57	65.12	66.25		63.0850
Southwest Wyoming Sweet	66.1	67.37	67.05	67.03	68.33	68.53	67.82	68.37	69.5		66.3350
Uinta Basin Black Wax	58.95	60.22	59.9	59.88	61.18	61.38	60.67	61.22	62.35		59.1850
Western Colorado	62.85	64.12	63.8	63.78	65.08	65.28	64.57	65.12	66.25		63.0850

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.