Texas billionaire brothers known for success in the fracking business and for funding U.S. conservative causes are betting on the Canadian oil-field-service industry returning to better times.
Wilks Brothers LLC, owned by Farris and Dan Wilks, has increased its stake in Calfrac Well Services Ltd., the Calgary-based hydraulic fracturing, or pressure-pumping, company that has seen its share price climb by a third since the start of July.
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