After more than 50 years of civil war, the Republic of South Sudan declared its independence over the weekend amid celebrations in its new capital of Juba.

Skadden, Arps, Slate, Meagher & Flom already has picked up some of the new country’s most important transactional work. The Am Law 100 firm said in a statement that it is advising South Sudan on its oil negotiations with the Republic of Sudan (which used to rule South Sudan), and on “production and transportation arrangements” with international oil companies seeking contracts in the region.