1. Energy Information Administration. World Consumption of Primary Energy by Energy Type and Selected Country Groups, 1980–2006.www.eia.doe.gov/pub/international/iealf/table18.xls; accessed Sept 23, 2010.
2. Development of mature oil fields — A review
3. Ruiz, R.; Rojas, J.THAI Toe-to-Heel Air Injection—Numerical Simulation of THAI Heavy Oil Recovery Process; White Paper.Schlumberger: 2007. Available online:www.slb.com/services/software/reseng/∼/media/Files/software/white_papers/whitepaper_numstimulation.ashx.
4. Navarrete, N.Major new oil developments: Technological and operational, challenges and solutions. Colombia potential.WPC Regional Meeting—IV Oil and Gas Investment Conference, 2010.
5. http://www.npc.org/Study_Topic_Papers/22-TTG-Heavy-Oil.pdf. Accessed Dec 26, 2011.