I would like to know the costs involved in manufacturing beer for
ultra large scale breweries like Coors, Miller or Anheuser-Busch.
Specifically I would like to know:
1.) The average cost to brew one barrel of beer (31 gallons per barrel)
2.) The average cost to bottle or can the beer
3.) The average cost for the bottle and can
4.) Average Distribution cost per bottle (or case or six pack)

Again the numbers I am looking for are for the mega breweries not
micro or craft breweries.

There's a lot of info here. This data comes from Latrobe Brewing, the
maker of Rolling Rock:

http://www.stvincent.edu/academics/special/bridges/abbott.html

From "The U.S. Brewing Industry" by Victor and Carol Horton Tremblay,
MIT Press, 2005.:
Average cost to brew one barrel of beer (in 1982 dollars)is
approximately $65 per barrel. (Graph interpretation)

In 2000, premium beer (like Budweiser and Coors) was priced at $15.15
per case.(in nominal dollars)
 
The price-cost breakdown of mass produced beer in 1996:(Consumer Reports, 1996)
Retail and distributor markup 36.4%
Taxes and Shipping 17.2%
Packaging 16.5%
Labor and Production 11.7%
Advertising and Management 8.2%
Brewer Profit 6%
Ingredients 4%

Cost breakdown for Mass-produced six-pack (in 1996):
Ingredients .16
Labor and production .47
Packaging .66
Advertising and Management .33
Brewer profit .24
Retail and distributor markup 1.46
Taxes and shipping .69
Total $4.01
A six pack is 72 oz by volume, a case is 2.25 gallons by volume, There
will be 13.7777 cases in a barrel, or 55.11 six packs.

This is all I've got...from this one book.  Hope it helps.