North America Crude Oil Marketing - March 1999 Summary East of the Rockies Bulletins 99-E34 to 99-E52, 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	E34 03/02	E35 03/03	E36 03/04	E37 03/05	E38 03/08	E39 03/09	E40 03/10	E41 03/11	E42 03/12	E43 03/17	Gvty Adj*
Altamont Yellow Wax	12.50	13.00	13.25	13.25	13.75	13.75	14.75	14.25	14.50	15.00	B
Deepwater Sour (Onshore) (30�)	9.25	9.75	10.25	10.25	10.50	10.75	11.75	11.25	11.50	12.00	F,G
East Texas	11.50	12.00	12.25	12.25	12.75	12.75	13.75	13.25	13.50	14.00	FLAT
New Mexico Intermediate	11.75	12.25	12.50	12.50	13.00	13.00	14.00	13.50	13.75	14.25	C
New Mexico Sour (34�)	10.50	11.00	11.25	11.25	11.75	11.75	12.50	12.00	12.50	13.00	D
North Texas Sweet	11.75	12.25	12.50	12.50	13.00	13.00	14.00	13.50	13.75	14.25	C
Oklahoma Sour	10.50	11.00	11.25	11.25	11.75	11.75	12.50	12.00	12.50	13.00	B
Oklahoma Sweet	11.75	12.25	12.50	12.50	13.00	13.00	14.00	13.50	13.75	14.25	A
South Louisiana Sour (Onshore)	10.75	11.00	11.50	11.25	11.75	12.00	12.50	12.25	12.50	13.00	A
South Louisiana Sweet (Onshore)	11.25	11.50	12.00	11.75	12.25	12.25	13.00	12.75	13.00	13.75	A
South Texas Light Sweet	11.25	11.75	12.00	12.00	12.50	12.50	13.50	13.00	13.25	13.75	C
Southwest Wyoming Sweet	13.25	13.75	14.00	14.00	14.50	14.50	15.50	15.00	15.25	15.75	E
Texas Gulf Coast (Onshore)	11.50	12.00	12.25	12.25	12.75	12.75	13.75	13.25	13.50	14.00	C
Uinta Basin Black Wax	9.00	9.50	9.75	9.75	10.25	10.25	11.25	10.75	11.00	11.50	B
West Texas Intermediate	11.75	12.25	12.50	12.50	13.00	13.00	14.00	13.50	13.75	14.25	C
West Texas Sour (34�)	10.50	11.00	11.25	11.25	11.75	11.75	12.50	12.00	12.50	13.00	D
Western Colorado	12.75	13.25	13.50	13.50	14.00	14.00	15.00	14.50	14.75	15.25	B

East of the Rockies	E44 03/19	E45 03/22	E46 03/23	E47 03/24	E48 03/25	E49 03/26	E50 03/29	E51 03/30	E52 03/31	Gvty Adj*	Mthly Avg
Altamont Yellow Wax	15.25	15.50	15.50	15.25	15.75	16.25	16.50	16.75	16.75		14.7177
Deepwater Sour (Onshore) (30�)	12.25	12.75	12.75	12.50	13.00	13.25	13.50	14.00	14.00		11.7419
East Texas	14.25	14.50	14.50	14.25	14.75	15.25	15.50	15.75	15.75		13.7177
New Mexico Intermediate	14.50	14.75	14.75	14.50	15.00	15.50	15.75	16.00	16.00		13.9677
New Mexico Sour (34�)	13.25	13.50	13.25	13.25	13.75	14.25	14.75	14.75	14.75		12.7016
North Texas Sweet	14.50	14.75	14.75	14.50	15.00	15.50	15.75	16.00	16.00		13.9677
Oklahoma Sour	13.25	13.50	13.25	13.25	13.75	14.25	14.75	14.75	14.75		12.7016
Oklahoma Sweet	14.50	14.75	14.75	14.50	15.00	15.50	15.75	16.00	16.00		13.9677
South Louisiana Sour (Onshore)	13.25	13.75	13.75	13.50	14.00	14.25	14.50	15.00	14.75		12.7823
South Louisiana Sweet (Onshore)	14.00	14.25	14.25	14.25	14.50	15.00	15.25	15.75	15.50		13.3710
South Texas Light Sweet	14.00	14.25	14.25	14.00	14.50	15.00	15.25	15.50	15.50		13.4677
Southwest Wyoming Sweet	16.00	16.25	16.25	16.00	16.50	17.00	17.25	17.50	17.50		15.4677
Texas Gulf Coast (Onshore)	14.25	14.50	14.50	14.25	14.75	15.25	15.50	15.75	15.75		13.7177
Uinta Basin Black Wax	11.75	12.00	12.00	11.75	12.25	12.75	13.00	13.25	13.25		11.2177
West Texas Intermediate	14.50	14.75	14.75	14.50	15.00	15.50	15.75	16.00	16.00		13.9677
West Texas Sour (34�)	13.25	13.50	13.25	13.25	13.75	14.25	14.75	14.75	14.75		12.7016
Western Colorado	15.50	15.75	15.75	15.50	16.00	16.50	16.75	17.00	17.00		14.9677

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.