Hear the full report on the World Service's Assignment programme on Thursday 9 May.
Boom time? Back to Takoradi, Ghana's oil city
1. Ghana's oil city
Ghana's first commercial oil began flowing in December 2010, 60km (about 37 miles) offshore.
The government said oil money would fund new roads, ports and railways. But two-and-a-half-years on, what difference has it made to the lives of people in the once run-down port of Takoradi, the hub for the new industry?
Rob Walker reports.
2. The oil worker
Maxwell Amissah is a graduate of Takoradi Polytechnic.
As soon as Ghana struck oil, he set his heart on getting a highly prized job offshore, at the Jubilee field.
He is now employed by one of the foreign companies in charge of oil production, working 28-day shifts.
He says he is proud to be a pioneer of Ghana's oil industry.
I'm one of the fortunate people to be working here because the oil industry in Ghana, as it is now, cannot employ the whole of Ghana."
3. The Chinese engineer
Wang Xianghui works on a pipeline bringing offshore gas to Takoradi.
She's employed by Sinopec, one of China's biggest oil companies, and the project is part of a $3bn loan to Ghana. A condition is that more than half of the goods and services will go to Chinese companies.
The Ghanaian government says the project will help end chronic power shortages.
We miss our family, after several months we can have a rest and go back to China. I miss them every day."
4. The jobseeker
Like many others sucked into Takoradi over the past couple of years, Daniel Adusei dreamed of becoming an oil worker.
He gave up his job as a teacher in the capital, Accra, and enrolled in a private training course.
But he has struggled to find work and worries that too many opportunities have gone to foreign workers instead of Ghanaians.
Some people, he says, are starting to get angry.
We are getting angry because you meet a colleague and the conversation is all sad. Frustration has set in."
5. The civil servant
Richard Osei Amoah, a civil servant, is struggling with the consequences of the oil boom.
With new businesses and migrants jostling for space, rents have gone up and there are many land disputes.
Richard's family of five share one bedroom in a rented apartment. He borrowed money to build a new home for them on the edge of Takoradi, but he says he can't finish it because there is a rival claim to the land.
The oil has opened doors and now Takoradi is on the development stage. Everybody is competing in Takoradi."