JAMB - Economics (2009 - No. 41)
Activities in the oil and gas industry are classified into
oil exploration and distribution
refining and marketing of finished products
upstream and downstream
exploration and drilling
Erläuterung
Upstream oil and gas production is conducted by companies who identify, extract, or produce raw materials. Downstream oil and gas production companies are companies involved in the supply or sale of petroleum products to the end-users.