Geographic information systems exploit numerous tools to analyze various spatial data sets. The ability of analyzing spatial data makes GIS distinct from other systems. Enterprise GIS (EGIS) can be used to share spatial data and analysis tools between different local governments such as members of drilling committee to efficiently perform their common tasks. It increases the coordination between local governments in order to do their common tasks and reduces the cost and time of performing these tasks. In this paper different steps of implementing an EGIS in order to coordinate drilling activities across a city have been explained. These steps include need analysis, and creating external, conceptual, logical and physical models for spatial database as core of EGIS which have been discussed in this paper. The case study of the research was town of SHYKH Shahab-e-din and a pilot project for drilling committee of this town has been implemented in the ArcGIS software environment