Polaris Laboratories and Sinclair Oil Lubricants announced the launch of the Sinclair Fluid Analysis Program, in which Polaris will provide complete testing and analysis for oils, diesel fuel, ...
SALT LAKE CITY--(BUSINESS WIRE)--The Sinclair Companies, a privately held company that wholly owns Sinclair Oil Corporation, today announced that it has entered into definitive agreements to combine ...
HollyFrontier Corp. has entered a definitive agreement to acquire privately owned Sinclair Cos.’ Sinclair Oil Corp. in a deal that would result in formation of newly proposed parent company HF ...
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