Rosneft PJSC signed investment and crude-purchasing agreements with Libya’s National Oil Corporation, as more international companies return to the North African country to gain access to Africa’s largest reserves.

Moscow-based Rosneft agreed to invest in exploration and production projects in Libya, the state-run NOC said on Tuesday in a statement on its website, without specifying the amount or timing of the investment.

The companies signed a separate accord for Rosneft to buy Libyan crude, Bloomberg reported.

The deals are part of a bigger push by NOC to encourage additional investments by foreign oil companies to help Libya increase its production to 2.1 million barrels a day by 2020, according to the statement.

Libya, one of OPEC’s smallest producers, is trying to revive output and sales of oil in spite of continuing political uncertainty and conflict between rival administrations and armed groups.

Any increase in production may complicate efforts by the Organization of Petroleum Exporting Countries to end a global crude glut. Libya pumped 1.6 million barrels a day before a 2011 revolt set off years of fighting that prompted foreign investors to withdraw.

OPEC agreed with other oil producers, including Russia, to reduce their collective output by 1.8 million barrels a day, starting Jan. 1. Libya was exempted from the cuts as it works to restore its oil industry.

“We need the assistance and investment of major international oil companies to reach our production goals and stabilize our economy,” NOC Chairman Mustafa Sanalla said in the statement.

Jadadalla Alaokali, an NOC board member, said last week that Libya’s crude production exceeded 700,000 barrels a day and is due to reach 1.2 million barrels a day by August and 1.7 million by March 2018, when the nation’s ports and export terminals operate at full capacity.