Nelson-Farrar Quarterly Costimating

Click here to enlarge imageThe costs of three important chemicals used in crude-oil refining changed very little during the period, 1998-2000, while the costs of two others varied significantly.The three stable chemicals were sulfuric acid, with Nelson-Farrar index ending with 353.0; hydrofluoric acid, with an index constant of 414.9; and sodium hydroxide, with an index average of 529.6.Platinum varied from 383.8 in the first quarter of 1998, to 584.6 in the last quarter of 2000. However, the average for the year 1998 was 366.8 while 556.7 was the average for 2000.The chemical with dropping costs was sodium carbonate.Over the 1998-2000 time span, sodium carbonate showed a maximum index ...

Why Register?

Non-subscribers can only view whitepapers by providing name, home and email address, phone number and other information and comment on/rate articles.

Why Subscribe?

Oil & Gas Journal subscribers with login credentials can access these premium features of OGJ Online:

  • Current Issue – an html version of the current week's issue of Oil & Gas Journal.
  • Past Issues – An Electronic OGJ Archive. A keyword-searchable archive of all issues of Oil & Gas Journal dating back to 1990; also searchable by issue date.
  • Market Journal – a weekly round-up of the oil and gas markets, with observations from leading analysts.
  • Editor's Perspective – a short article of insight and opinion by the Editor of Oil & Gas Journal.
  • OGJ Industry Stats – quick access to current industry statistics from Oil & Gas Journal.
  • OGJ Survey Downloads - quick access to exclusive reports from Oil & Gas Journal.


Subscriber Help or Subscribe

Oil & Gas Journal Subscribers: Have your subscription number (from the mailing label on the cover of your Oil & Gas Journal) and e-mail address ready to set up your online account through Customer Service Assistant.

If you're not an Oil & Gas Journal subscriber, start a subscription and gain access to the subscriber areas of OGJ Online now.

Stay Connected