Chevron
North America Crude Oil Marketing - May 2011 Summary East of the Rockies Bulletins 11-E84 to 11-E104, 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.

* Prices are subject to a Gravity Adjustment Scale
East of the RockiesE84
05/02
E85
05/03
E86
05/04
E87
05/05
E88
05/06
E89
05/09
E90
05/10
E91
05/11
E92
05/12
E93
05/13
E94
05/16
Gvty
Adj*
Altamont Yellow Wax99.5297.0595.2485.8083.1888.5589.8884.2184.9785.6583.37B
Bonito Sour (Onshore)125.25122.75121.00111.50109.00114.25115.50110.00110.75111.50109.00A
Deepwater Sour (Onshore) (30°)121.25118.75117.00107.50105.00110.25111.75106.00106.75107.50105.25F,G
East Texas109.75107.25105.5096.0093.5098.75100.2594.5095.2596.0093.75none
Eugene Island Sour (Onshore)125.50123.00121.25111.75109.00114.50115.75110.25111.00111.50109.25A
Heavy Louisiana Sweet (Onshore)128.25125.75124.00114.50111.75117.25118.50112.75113.50114.25112.00A
Light Louisiana Sweet (Onshore)128.50126.00124.25114.75112.00117.50118.75113.25114.00114.50112.25A
New Mexico Intermediate110.00107.50105.7596.2593.7599.00100.5094.7595.5096.2594.00none
New Mexico Sour (34°)105.25102.75101.0091.5089.0094.2595.7590.0090.7591.5089.25none
North Texas Sweet110.00107.50105.7596.2593.7599.00100.5094.7595.5096.2594.00none
Oklahoma Sour105.25102.75101.0091.5089.0094.2595.7590.0090.7591.5089.25none
Oklahoma Sweet110.00107.50105.7596.2593.7599.00100.5094.7595.5096.2594.00none
Rocky Mountain Condensate99.2796.8094.9985.5582.9388.3089.6383.9684.7285.4083.12H
South Texas Light Sweet108.00105.50103.7594.2591.7597.0098.5092.7593.5094.2592.00none
Southwest Wyoming Sweet104.02101.5599.7490.3087.6893.0594.3888.7189.4790.1587.87E
Uinta Basin Black Wax98.5296.0594.2484.8082.1887.5588.8883.2183.9784.6582.37B
West Texas Intermediate110.00107.50105.7596.2593.7599.00100.5094.7595.5096.2594.00none
West Texas Sour (34°)105.25102.75101.0091.5089.0094.2595.7590.0090.7591.5089.25none
Western Colorado101.0298.5596.7487.3084.6890.0591.3885.7186.4787.1584.87B
East of the RockiesE95
05/17
E96
05/18
E97
05/19
E98
05/20
E99
05/23
E100
05/24
E101
05/25
E102
05/26
E103
05/27
E104
05/31
Gvty
Adj*
Mthly
Avg
Altamont Yellow Wax83.9187.1085.4486.4984.7086.5988.3287.2387.5989.7087.6719
Bonito Sour (Onshore)108.75111.75110.25111.25109.50111.25113.00112.00112.25114.50112.9032
Deepwater Sour (Onshore) (30°)104.75108.00106.25107.25105.50107.50109.00108.00108.50110.50109.0000
East Texas93.2596.5094.7595.7594.0096.0097.7596.5097.0099.0097.5081
Eugene Island Sour (Onshore)108.75112.00110.25111.50109.75111.50113.25112.25112.50114.75113.1048
Heavy Louisiana Sweet (Onshore)111.50114.75113.00114.25112.25114.25116.00114.75115.25117.25115.7823
Light Louisiana Sweet (Onshore)111.75115.00113.25114.50112.50114.50116.25115.25115.50117.50116.0565
New Mexico Intermediate93.5096.7595.0096.0094.2596.2598.0096.7597.2599.2597.7581
New Mexico Sour (34°)88.7592.0090.2591.2589.5091.5093.2592.0092.5094.5093.0081
North Texas Sweet93.5096.7595.0096.0094.2596.2598.0096.7597.2599.2597.7581
Oklahoma Sour88.7592.0090.2591.2589.5091.5093.2592.0092.5094.5093.0081
Oklahoma Sweet93.5096.7595.0096.0094.2596.2598.0096.7597.2599.2597.7581
Rocky Mountain Condensate83.6686.8585.1986.2484.4586.3488.0786.9887.3489.4587.4219
South Texas Light Sweet91.5094.7593.0094.0092.2594.2596.0094.7595.2597.2595.7581
Southwest Wyoming Sweet88.4191.6089.9490.9989.2091.0992.8291.7392.0994.2092.1719
Uinta Basin Black Wax82.9186.1084.4485.4983.7085.5987.3286.2386.5988.7086.6719
West Texas Intermediate93.5096.7595.0096.0094.2596.2598.0096.7597.2599.2597.7581
West Texas Sour (34°)88.7592.0090.2591.2589.5091.5093.2592.0092.5094.5093.0081
Western Colorado85.4188.6086.9487.9986.2088.0989.8288.7389.0991.2089.1719
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.

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