[whd23]

Whoops! I missed the following post that pointed out that a barrel of oil is only 42 gallons. So:
(4x10^9 barrels) * (42 gallons/barrel) * (6.58 lbs/gallon) / (2000 lbs/ton) = 552.7x10^6 tons.

Looks close enough for me!

[delacoert]

Don't give in too quickly!

Annual production of turkeys in 2004 was 250,000,000 head.

If we conservatively estimate that every turkey has 20 pounds of guts (I doubt it's really that high), then that's a maximum of 2.5 million tons of turkey guts a year.

The inventory/scam artist is claiming 600 million tons of turkey guts are available.