Surge Energy US Holdings, an oil and gas company, completed the acquisition of a majority stake in midland basin assets of Grenadier Energy Partners, a private equity firm, for $420m. "This acquisition is consistent with our strategy of building a long-term, sustainable oil and gas company. The combination of both production and high-quality inventory support both near-term cash flow and strong economic returns for years to come," Linhua Guan, Surge Energy CEO.