Operational Eco-Efficiency


PTTEP aims at minimizing our impact on the environment and community. PTTEP has developed an environmental information database, and has continuously reviewed and updated the data collection method and database itself. The data reported since 2010 have been assured by an independent external party.

We strive to improve our environmental performance to better our own performance. We also benchmark our performance against our peers in the International Association of Oil and Gas Producer (IOGP) and also pursue targets for greenhouse gases and NOx, SOx and VOCs.

Greenhouse Gas Management

As an E&P company, we are committed to exploring a clean and reliable energy for the world through our increased investment in natural gas and greenhouse gas reduction initiatives. Through a variety of initiatives, PTTEP aims to become a low carbon organization by setting the short-term GHG intensity target to reduce and offset at least 20 percent of our greenhouse gas emissions from 2012 base year by 2020.

In addition, PTTEP has established medium-term GHG intensity target which is set at 25 percentage of reduction by 2030 covering all operating assets and petroleum support bases under our operational control. This target is complied with 2 degrees Celsius scenario for energy sector recommended by the International Energy Agency (IEA).

The flash gas recovery unit project at the Greater Bongkot South Project commenced in 2013, in which it recovers gas from condensate production (that would be otherwise flared) back into the production process. The flash gas recovery is about 11 million cubic feet per day, equivalent to 140,000 tonnes CO2e per year of GHG emission reduction.

PTTEP, Sao Thian-A Oil Field Flare Gas Recovery and Utilization Program at Sukhothai reduces our GHG emissions by recovering the associated gas (that would otherwise be flared) to be used as the fuel supply for power generation.  Annual GHG emissions reduction by this project is expected to be 25,000 tonnes CO2e.


Methane is a major greenhouse gas contributor.  PTTEP is committed to limiting our methane emissions through minimizing flaring and reducing leakages. Currently, PTTEP is in the process of conducting a baseline study of methane emissions in our major operating assets.

Since 2014, PTTEP implemented direct inspection and maintenance program (DI&M) at the S1 onshore oil field.  5,000 tonnes of CO2e per year is reduced by equipment tightening and replacement of rod packing in reciprocating compressors.

In 2015 and 2016, PTTEP had additionally conducted methane leakage surveys in every Thailand offshore assets, Sinphuhorm assets which were new acquired in 2014 along with Zawtika asset in Myanmar.

Energy Efficiency

PTTEP aims to improve energy efficiency by 5 percent from base year 2012 by 2020. In 2013, PTTEP developed energy baseline studies in operating assets to assess the initial opportunities for energy efficiency improvement; conducted a study on introducing best available technologies to apply at project level including financial analysis of the feasibility; and identified indicators for energy use control.

In 2016, PTTEP widened the scope of energy efficiency by conducting a study on energy consumption baseline to identify significant consuming energy activities for Zawtika project in Myanmar. Study data will be used to improve the efficiency of future energy consumption.

NOx, SOx and VOCs

NOx, SOx and VOCs are emissions that result primarily from the burning of fossil fuels at our facilities for power generation or heating. In an effort to reduce these emissions, PTTEP continues to improve our energy efficiency and reduce flaring so we can decrease our NOx, SOx and VOC emissions. Our target is to maintain these emissions level below 2012 base year.