Mid American Energy is owned by Berkshire Hathaway, which trades under the symbols BRK.A on the NYSE.
ZFFA on NYSE
Direct Energy was acquired by NRG Energy in 2020. Therefore, its stock symbol on the New York Stock Exchange was DGNR prior to the acquisition. After the acquisition, it is now part of NRG Energy, which is listed under the stock symbol NRG.
MNST
The stock symbol for TD Ameritrade is AMTD and it trades on the NASDAQ. 'AMTD' - Ameritrade is now TD Ameritrade (after merging with TD Waterhouse), but kept the same stock symbol.
The ticker symbol for Laboratory Corporation of America Holding is LH and it is traded on the New York Stock Exchange.
There is no ticker symbol for Bloom Energy. They are currently a privately held company.
HUML.PK is the symbol for Humble Energy.
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Tenaska Energy is a privately-held company and as such has no publicly-traded stock.
The NYSE common stock ticker symbol for Suncor Energy Inc., is SU.
Roche Holding AG, trades under the stock symbol ROGlisted on the Swiss Exchange. It also trades in the US as a Pink Sheet under the ticker symbol RHHBY.PK
SHLD as Kmart is part of Sears Holding Company