Berkshire Hathaway (BRK-A/B): Investor Relations Links for Non-Equity Securities

http://www.berkshirehathaway.com/

Utilities, Energy, and Railroad:
AltaLink, LP -- bought for $2.73 billion in Q4/2014 -- http://www.altalink.ca/about/investor-relations/quarterly-reports.cfm
Burlington Northern Santa Fe ("BNSF") -- bought November 2009 for $34 billion -- http://www.bnsf.com/about-bnsf/financial-information/
MidAmerican -- bought October 2009 for $9 billion --  https://www.berkshirehathawayenergyco.com/investors/financial-filings
Northern Natural Gas Co. -- bought in 2002 for $1.9 billion -- https://www.berkshirehathawayenergyco.com/investors/financial-filings
NV Energy -- bought May 2013 for $10 billion -- https://www.nvenergy.com/company/financial/
PacifiCorp -- http://www.pacificorp.com/about/fi.html

Manufacturing, Service, and Retailing:
Lubrizol -- bought March 2011 for $9 billion -- http://investor.lubrizol.com/Mobile.View?c=91008
McLane Company -- bought in 2003 for $1.45 billion -- N/A

Insurance
General Re -- bought in June 1998 for $22 billion -- http://www.genre.com/aboutus/financial-info/

Other:
Kraft Heinz -- BRK owns 26.8% + $8 billion pref. -- http://ir.kraftheinzcompany.com/
Heinz -- bought in 2013 for $23 billion (BRK $4b cash + $8 billion in Preferreds) -- http://www.heinz.com/our-company/investor-relations.aspx

Articles:
Buffett buys MidAmerican (1999 WSJ) Link
Buffett buying Burlington Northern (2009 WSJ) Link
Berkshire buying NV Energy (2013 WSJ) Link
Acquisition of AltaLink LP (2014 Reuters) Link
MidAmerican to buy Northern Natural Gas from Dynegy (2002 PRNewswire) Link
McLane Company acquisition (2002 NY Times) Link
Lubrizol acquisition (2011 WSJ) Link
Iscar - buys remaining 20% (2013 Reuters) Link
Marmon Group (2007 Bloomberg) Link
General Re (1998 LA Times) Link
Heinz & 3G (2013 WSJ) Link