Chevron
North America Crude Oil Marketing - September 2011 Summary East of the Rockies Bulletins 11-E170 to 11-E190, 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 RockiesE170
09/01
E171
09/02
E172
09/06
E173
09/07
E174
09/08
E175
09/09
E176
09/12
E177
09/13
E178
09/14
E179
09/15
E180
09/16
Gvty
Adj*
Altamont Yellow Wax75.9373.4573.0276.3476.0574.2475.1977.2175.9177.4075.96B
Bonito Sour (Onshore)110.75108.25107.75111.00110.75109.00110.00112.00110.75111.25109.75A
Deepwater Sour (Onshore) (30°)108.00105.50105.25108.50108.25106.25107.25109.25108.00108.50107.00F,G
East Texas85.2582.7582.2585.7585.2583.5084.5086.5085.2585.7584.25none
Eugene Island Sour (Onshore)110.50108.00107.75111.00110.75109.00109.75111.75110.50111.00109.50A
Heavy Louisiana Sweet (Onshore)112.75110.25109.75113.25113.00111.00112.00114.00112.75113.25111.75A
Light Louisiana Sweet (Onshore)110.50108.00107.50111.00110.75108.75109.75111.75110.50111.00109.50A
New Mexico Intermediate85.5083.0082.5086.0085.5083.7584.7586.7585.5086.0084.50none
New Mexico Sour (34°)80.7578.2577.7581.2580.7579.0080.0082.0080.7581.2579.75none
North Texas Sweet85.5083.0082.5086.0085.5083.7584.7586.7585.5086.0084.50none
Oklahoma Sour80.7578.2577.7581.2580.7579.0080.0082.0080.7581.2579.75none
Oklahoma Sweet85.5083.0082.5086.0085.5083.7584.7586.7585.5086.0084.50none
Rocky Mountain Condensate75.6873.2072.7776.0975.8073.9974.9476.9675.6677.1575.71H
South Texas Light Sweet83.5081.0080.5084.0083.5081.7582.7584.7583.5084.0082.50none
Southwest Wyoming Sweet80.4377.9577.5280.8480.5578.7479.6981.7180.4182.1580.71E
Uinta Basin Black Wax74.9372.4572.0275.3475.0573.2474.1976.2174.9176.4074.96B
West Texas Intermediate85.5083.0082.5086.0085.5083.7584.7586.7585.5086.0084.50none
West Texas Sour (34°)80.7578.2577.7581.2580.7579.0080.0082.0080.7581.2579.75none
Western Colorado77.4374.9574.5277.8477.5575.7476.6978.7177.4179.4077.96B
East of the RockiesE181
09/19
E182
09/20
E183
09/21
E184
09/22
E185
09/23
E186
09/26
E187
09/27
E188
09/28
E189
09/29
E190
09/30
Gvty
Adj*
Mthly
Avg
Altamont Yellow Wax73.7074.8973.9268.5167.8568.2472.4569.2170.1467.2073.1087
Bonito Sour (Onshore)107.50108.50107.75102.25101.50102.00106.25103.00103.75101.00107.3333
Deepwater Sour (Onshore) (30°)104.75106.00105.0099.7599.0099.25103.50100.25101.2598.25104.6583
East Texas82.0083.2582.2576.7576.2576.5080.7577.5078.5075.5081.8833
Eugene Island Sour (Onshore)107.25108.50107.50102.25101.50102.00106.00102.75103.75100.75107.1917
Heavy Louisiana Sweet (Onshore)109.50110.75109.75104.25103.75104.00108.25105.00106.00103.00109.3917
Light Louisiana Sweet (Onshore)107.25108.50107.50102.00101.50101.75106.00102.75103.75100.75107.1417
New Mexico Intermediate82.2583.5082.5077.0076.5076.7581.0077.7578.7575.7582.1333
New Mexico Sour (34°)77.5078.7577.7572.2571.7572.0076.2573.0074.0071.0077.3833
North Texas Sweet82.2583.5082.5077.0076.5076.7581.0077.7578.7575.7582.1333
Oklahoma Sour77.5078.7577.7572.2571.7572.0076.2573.0074.0071.0077.3833
Oklahoma Sweet82.2583.5082.5077.0076.5076.7581.0077.7578.7575.7582.1333
Rocky Mountain Condensate73.4574.6473.6768.2667.6067.9972.2068.9669.8966.9572.8587
South Texas Light Sweet80.2581.5080.5075.0074.5074.7579.0075.7576.7573.7580.1333
Southwest Wyoming Sweet78.4579.6478.6773.2672.6072.9977.2073.9674.8971.9577.7420
Uinta Basin Black Wax72.7073.8972.9267.5166.8567.2471.4568.2169.1466.2072.1087
West Texas Intermediate82.2583.5082.5077.0076.5076.7581.0077.7578.7575.7582.1333
West Texas Sour (34°)77.5078.7577.7572.2571.7572.0076.2573.0074.0071.0077.3833
Western Colorado75.7076.8975.9270.5169.8570.2474.4571.2172.1469.2074.8753
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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