The office at 7 mile will serve as the company’s headquarters for all its operations within the country including as operator of the PNG LNG project.
The event was witnessed by key government officials, visiting US based executives from ExxonMobil, PNG LNG co-ventures, business and diplomatic representatives.
EMPNG’s managing director Andrew Barry said the office was more than bricks and mortar.
"This building exemplifies the core values that ExxonMobil PNG and the PNG LNG project stand for - safety, security, environment, integrity, excellence and teamwork.
"It demonstrates our commitment to running our operations to the highest of standards and our desire to provide an environment that further develops our local workforce, which is 80% Papua New Guinean.
The office is also scalable as ExxonMobil PNG and our co-ventures seek to grow our business in Papua New Guinea," Mr Barry said.
The office is built to international standards for energy efficiency and environmental management, consistent with ExxonMobil PNG’s approach during construction of the Papua New Guinea Liquefied Natural Gas project (PNG LNG).
Features include the use of solar panels to supplement gas heating for hot water and motion sensors and timers controlling lighting to reduce energy consumption.
Recycled water is also used for irrigation purposes on the gardens and sports field.