QatarEnergy on Monday signed a deal with ConocoPhillips for the Gulf state's North Field East expansion, the world's largest LNG project, following agreements with TotalEnergies and Eni.

Qatar is partnering with international companies in the first and largest phase of the nearly $30 billion expansion that will boost Qatar's position as the world's top LNG exporter.

The companies will form a joint venture that will take a 12.5% stake in North Field East and ConocoPhillips will have a 25% stake in that joint venture.

The arrangement is similar to that announced with Eni on Sunday and implies a 3.12% stake in the overall North Field East project for ConocoPhillips.

QatarEnergy CEO Saad al-Kaabi said the partnerships with international companies would be effective for 27 years.

"That agreement is for 27 years. It is exactly the same for everybody that was going to be signing," Kaabi said.

In all, the North Field Expansion plan includes six LNG trains that will ramp up Qatar’s liquefaction capacity from 77 million tonnes per annum (MTPA) to 126 MTPA by 2027.