...But Iran has plans to add value to much of its gas, as the Oil & Gas Journal points out (Iran becoming mega petrochemical producer, March 26). Images of dollars from petrochemicals which are the source of plastics, building materials...

...that can be spun into fibers. The technology was developed by agricultural processing giant Cargill Inc. and petrochemical producer Dow Chemical Co. in a joint venture that began in 1997. Cargill Dow is a stand-alone company. Products made...