IMPLEMENTATION OF A CORPORATE-WIDE PROCESS FOR ESTIMATING ENERGY CONSUMPTION AND GREENHOUSE GAS EMISSIONS FROM OIL AND GAS INDUSTRY OPERATIONS

摘要

ChevronTexaco Corporation believes that global climate change is an important issue and is taking action to address it. We are responding to the concern about climate change with a four-fold plan of action. We are: 1. Reducing emissions of greenhouse gases and increasing energy efficiency 2. Investing in research, development and improved technology 3. Pursuing business opportunities in promising innovative energy technologies 4. Supporting flexible and economically sound policies and mechanisms that protect the environment. The ChevronTexaco Energy and Greenhouse Gas Inventory System (CEGIS) was designed and implemented to establish a reliable baseline and have a verifiable inventory of greenhouse gas emissions. This will enable us to pursue our goal of reducing emissions per unit output from our operations. CEGIS is an automated, electronic data management information system that is designed to gather monthly energy and greenhouse gas emissions data from ChevronTexaco's worldwide exploration and production, refining and marketing, petrochemicals, transportation and coal mining activities. The system was implemented throughout ChevronTexaco beginning in July, 2001. ChevronTexaco Corporation and its Chevron, Texaco and Caltex subsidiary companies enter data to calculate greenhouse gas emissions and energy utilization on a monthly basis. At the end of each quarter, energy and greenhouse gas emission estimates are reported to ChevronTexaco Corporation. This paper will review system scope and boundaries, provide an overview of how the system works and highlight lessons learned during company-wide implementation of the system.