The five (5) geothermal service contract areas where EDC’s geothermal production steam fields are located are:
- Tongonan Geothermal Project
- Southern Negros Geothermal Project
- Bacon-Manito Geothermal Project
- Mt. Apo Geothermal Project
- Northern Negros Geothermal Project
- Tongonan Geothermal Power Plant (with a twenty-five (25) year contract period expiring in 2037, renewable for another twenty-five (25) years)
- Palinpinon Geothermal Power Plants (with a twenty-five (25) year contract period expiring in 2037, renewable for another twenty-five (25) years)
- Bacon-Manito Geothermal Power Plants (with a twenty-five (25) year contract period expiring in 2037, renewable for another twenty-five (25) years)
- Balingasag Geothermal Project (with a five-year pre-development period expired in 2017, granted extension until 2019; 25-year contract period expiring in 2037, renewable for another twenty-five (25) years)
- Mt. Zion 2 Geothermal Project (with a five-year pre-development period expiring in 2020, 25-year contract period expiring in 2040, renewable for another twenty-five (25) years)
- Amacan Geothermal Project (with a five-year pre-development period expiring in 2021, 25-year contract period expiring in 2041, renewable for another twenty-five (25) years)