Sunoco 2008 Corporate Responsibility Report

Greenhouse Gases (GHG)
As discussed in the energy conservation section, Sunoco uses the SANGEA™ software tool to measure energy usage and calculate greenhouse gas emissions. Greenhouse gas emissions are expressed in terms of CO^₂ equivalents (CO^₂e). Consistent with U.S. Department of Energy guidelines, the CO^₂e amounts include any emissions by outside providers of energy consumed by Sunoco facilities. GHG emissions for the refineries and chemical plants increased 2.43% compared with 2007, and were 10.73% lower than the 1990 base year. These results reflect energy usage at Sunoco's refineries and chemical plants. And as mentioned in the energy conservation section, included are the increased energy usage and greenhouse gases associated with three new Low Sulfur Diesel projects online during 2006. For a discussion of Sunoco’s energy conservation activities, click here.

During 2007, Sunoco reviewed and enhanced its GHG inventory. This enabled the inclusion of the SunCoke Energy cokemaking facilities, Marketing (retail stores, home heating oil subsidiaries, gasoline transport trucks, etc.) and the Professional Services Group (i.e., headquarters operations). Data for these groups were developed for 2006, 2007 and 2008. They are not included in the 1990 baseline year.

Greenhouse Gases (Metric Tons) Carbon Dioxide equivalents*
	1990 Base Year	2006	2007	2008
Refineries	11,345,857	10,176,781	10,432,326	10,294,164
Chemical Plants	1,229,451	1,099,669	1,073,383	931,584
SunCoke Energy	N/A	2,661,372	2,640,967	2,813,846
Marketing	N/A	240,454	239,677	104,487
Professional Services Group	N/A	7,456	7,767	10,304
Company Total	12,575,308	14,185,732	14,394,120	14,154,384

* Includes Indirect Emissions.

Normalized Greenhouse Gases (Metric Tons) Carbon Dioxide equivalents
	1990 Base Year	2006	2007	2008
Refineries*	40.21	33.03	34.18	35.80
Chemical Plants**	223.01	218.78	213.54	198.11

* Metric Tons/MBbls
** Metric Tons/MMlbs
Includes Indirect Emissions.

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