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Chesapeake Granite Wash Trust
Unfortunately, I was unable to find a public company called "Oil Gas Pipelines" with a stock symbol of "CHKR" on any US stock exchange. It's possible that this could be a private company, or it could be listed on a different exchange.
If you provide me with more information or details, I can help you locate the information you're looking for. Alternatively, if you provide me with a different ticker symbol or company name, I'd be happy to assist you with information regarding that particular company.