Hey: A guy with your oilfield experience should know Halliburton doesn't produce or sell sub-surface gas. What kind are you referring to?
Ya i know.  I needed a way to loosly refer to the fuels they are supposedly using in Iraq.  They stand accused of fruad by inflating the transportation cost and then rebilling the US Government for the inflated price.  

http://www.washingtonpost.com/wp-dyn/articles/A35138-2005Mar14.html

Apparently they're buying fuel somewhere in Turkey for less than $100,000 and then charge a staggering 27,000,000 to transport it to Iraq.  True, I haven't been able to find out the kind of fuel or what volume was purchased that would require such a high transportation fee, but if I take the 27million and assume a super high transportation cost of 25cents/gal that gives me a minimum volume of 108 million gallons of fuel.  Then that figures the price/gallon is 0.00075 or 75 cents FOR A 1000 GAL (I want some of that!) and you still need about 8000 trucks to move it.  Logistics problem.  Highly improbable numbers in any case.

Maybe they air freighted it in with 500 KC-111s with fighter escorts.