Data: Louisiana Natural Gas Severance Index
|Monthly Index: Beginning with the October 2002 prices, the official source for the monthly index price is the NYMEX futures settled price of the Henry Hub on the last day of trading for the next month's contract, as reported in the Wall Street Journal.
The previous official source was the Survey of Domestic Spot Market, as published by Dynergy, Inc., and earlier published by the Natural Gas Clearing House.
Base Year: The gas severance tax is indexed with a seven cents floor. The base year was from April 1989 through March 1990 which set the base price at $1.7446/MMBTU and a base severance tax rate of $ 0.07/MCF.
Current Severance Tax Rate: $0.118/MCF (1 July 2013 through 30 June 2014), measured at a base pressure of 15.025 pounds per square inch absolute and at a temperature base of 60 degrees Fahrenheit.