The Stanine system of the Cogat scores on the other hand, is similar to a Grade Point Average, being assigned on a nine-point scale. Stanine range from 1 to 3 indicates a below average score, 4 to 6 represents an average performance and 7 to 9 signifies good results.
US oil and gas reserves study | 11. Production costs US â production costs ($ per boe) (a) 2009 2010 2011 2012 2013 3-year 5-year $ 11.06 $ 12.12 $ 14.44 $ 14.74 $ 14.84 $ 14.68 $ 13.55 (a) Includes the 50 largest companies based on 2013 end-of-year oil and gas reserve estimates.
PetroChina is the fifth largest oil and gas company in the world. It produced 916.5 million barrels of crude oil and 2.558 trillion cubic feet of natural gas in 2012. Overseas crude oil production by the company during the year stood at 136.9 million barrels.