Duque Falange Inducir cost of crude oil production per barrel vaquero Bigote Flotar
Oil shale economics - Wikipedia
Oil Profitability Around the World - or - What is the cost to keep their social programs running? - Oil & Gas 360
U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
Crude Oil Cost of Production
Shell takes $22bn hit over low oil prices - BBC News
Oil Profitability Around the World - or - What is the cost to keep their social programs running? - Oil & Gas 360
A Balasubramanian on Twitter: "Cost of production of Crude Oil varies from country to country ; however major oil producing nations even at the USD 30 per barrel is still making huge
U.S. Energy Information Administration - EIA - Independent Statistics and Analysis