Equatorial Guinea, OPEC’s newest member, called on fellow African producers to band together to protect the value of their oil resources and join the group. As more discoveries are made across the continent, cooperation among producers is key, the nation’s Minister of Mines, Industry and Energy Gabriel Obiang told a conference in Cape Town. “Have a principle and defend your base,” he said, wryly referencing a strategy of U.S. President Donald Trump. Equatorial Guinea joined the Organization of Petroleum Exporting Countries last month, making the group the largest it’s ever been. Although small, the country is sub-Saharan Africa’s third-biggest oil producer, after Nigeria and Angola.