Exxon Mobil Corp. intends to exit Equatorial Guinea in the coming months, concluding nearly three decades of oil drilling that led the small West African nation to become an OPEC member. Equatorial Guinea emerged as a major oil hub at the start of the 21st century, propelled by discoveries made by Mobil Corp. in the mid-1990s.Exxon’s primary asset in Equatorial Guinea is the Zafiro field, which yielded over 1 billion barrels over two decades.The company will transfer its investments in the country to the government during the second quarter.According to Bloomberg, the company announced it woul…