Net Energy Consumed (Million BTUs)
	Base Year 1990	2003	2004	2005
Refineries	161,862,553	135,788,263	140,851,291	141,996,030
Chemical Plants	16,224,360	15,675,125	14,847,278	15,319,143
Company Total	178,086,913	151,463,388	155,698,569	157,315,173

Net energy used was essentially the same in 2005 (increased 1.0%) as in 2004, but was 11.7% lower than the 1990 base year. Refinery energy usage on an aggregate basis increased slightly (0.8%) compared to 2004, but decreased by 1.5% on a normalized basis. When compared with the 1990 base year, refinery energy usage decreased both on an aggregate (12.3%) and normalized (23.0%) basis.

The aggregate usage increases in 2005 were very slight, particularly in light of bringing four major Low Sulfur Gasoline (LSG) process units online during the year. These new process units placed increased energy demands on the refineries as they meet U. S. EPA requirements for cleaner gasoline. Our management systems process drives us to improve operations reliability with the added benefit of having a beneficial effect on energy efficiency.

The chemical plants aggregate energy usage increased 3.2% compared with 2004, but was 5.6% lower than 1990. A 1.8% drop in production resulted in the 2005 normalized energy usage by the chemical plants increasing 5.1% compared with 2004 and 10.2% compared with 1990*.

* The Chemicals 1990 baseline is not actual 1990 data. Since Sunoco did not own the chemical facilities until the late 1990s/early 2000s the 1990 baseline has been established by assuming that energy usage for 1990 was the same as the first year Sunoco acquired the chemical facility(s). This is a conservative approach, since actual energy consumption in 1990 likely was higher than shown.

Overall manufacturing energy usage in 2005, when compared with 2004, remained flat. From an aggregate standpoint, five facilities lowered and five increased their energy usage (one remained essentially the same). On a normalized basis, five facilities were more energy intensive and six were less (production increased in 2005 2.1% at the refineries and decreased by 1.8% at the chemical plants, when compared with 2004).

During 2005, planned maintenance turnarounds occurred at a number of facilities. Other events affecting energy consumption were process unit shutdowns due to power supply interruption, such as experienced at the Toledo Refinery, and shutdown/startup of the La Porte and Bayport Plants due to Hurricane Rita. Starting up and shutting down process units can increase energy consumption as more steam is used.

Refinery & Chemical Plant Energy Use by Source
	Base Year 1990	Reporting Year 2003	Reporting Year 2004	Reporting Year 2005
Purchased Electricity	19,209,067	21,363,375	22,222,002	23,148,950
Electricity going offsite	464,535	0	0	0
Total Electricity (MMbtu/yr)	18,744,532	21,363,375	22,222,002	23,148,950
Natural Gas/Fuel Gas	107,749,173	83,986,544	87,925,950	84,540,198
Coke on Catalyst	27,491,674	32,897,238	33,612,748	35,764,117
Propane/Butane	4,404,410	1,781,506	1,824,957	2,205,705
Distillate/Residual Fuels	13,856,648	7,417,565	5,431,064	5,186,340
Other Liquid Fuels	1,690,409	1,678,434	1,642,625	1,612,571
Coal	1,284,449	445,390	450,009	485,256
Total Fuels (MMbtu/yr)	156,476,763	128,206,677	130,887,353	129,794,187
Net Purchased Steam	2,865,618	1,893,336	2,515,346	4,300,572
Flared Gas	0	0	73,868	71,464
Total Fuel Consumption (MMbtu/yr)	178,086,913	151,463,388	155,698,569	157,315,173

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Conversion Table
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Summary Report
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