Bailiffs acting on behalf of representatives of the heirs of the last Muslim sultan of Sulu on Monday seized Petronas Azerbaijan (Shah Deniz) and Petronas South Caucasus, Luxembourg subsidiaries of Malaysian state oil company Petronas, the Financial Times reports.

The two companies are valued at what could be over $2bn. They reportedly manage Petronas’s gas interests in Azerbaijan. Both companies have their address listed as avenue John F. Kennedy in Kirchberg and were first registered with the company registry in October 2014.

The move follows a ruling from an arbitrator in France in March that the Malaysia state, should pay the sultan’s descendants $14.9bn. They base their claim on an agreement made by their ancestors in in 1878 to lease land to a British trading company. Later, vast natural resources were discovered on the land. The Malaysia state took over the lease agreement upon securing independence from Britain in August 1957.

The FT reports that in February, the Luxembourg-based holding companies liquidated a 15.5% stake in Azerbaijan’s Shah Deniz offshore gasfield, which was previously valued at $2.3bn. “It is unclear whether this money is now held by the subsidiaries or by Petronas in Malaysia,” the FT authors, Oliver Telling and Leo Lewis write.

Petronas, established, in 1974, is one of Malaysia’s highest profile companies. It is headquartered at the famous Petronas towers in Kuala Lumpur and since 2010 it has sponsored the Mercedes-AMG Petronas Formula One team.