Private equity investment in oil and gas has been on the wane in the past few years amid the drive toward more ESG-oriented investments and pressure on the industry from the federal government, which has prioritized a shift to renewable energy. This is changing, however. With oil prices lingering in the three-digit territory and the U.S. and other large consumer countries scrambling for more oil and gas, the industry once again looks attractive. The Wall Street Journal reported this week that oil and gas investment funds in the United States are…