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By Richard L. Christiansen, John R. Fanchi. John R. Fanchi holds the Ross B. Matthews Chair of Petroleum Engineering at Texas Christian University in Fort Worth, Texas. Richard L. Christiansen has taught Petroleum Engineering at the University of Utah and Colorado School of Mines.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.