Hartree Partners, a private equity firm, completed the acquisition of Sprague Resources, a supplier of energy products and related services, from Axel Johnson, an industrial group, for $290m. “This change in ownership marks a significant point in our history. Antonia Ax:son Johnson has been a supportive owner for 50 years and we’re forever grateful for her stewardship and commitment to our success. We now look forward to the opportunity to partner with Hartree in the next stage of our growth," David Glendon, Sprague President and CEO.