Dallas-based energy-focused private equity firm, Energy Spectrum, has raised $998.7 million for its sixth fund. The private equity fund focuses on mid-stream infrastructure opportunities and management teams.

The vehicle has made its first investment, partnering with Costar Midstream to acquire natural gas processing assets in the Granite Wash natural gas play running across parts of Texas and Oklahoma. Costar is set to acquire and develop mid-stream opportunities in the $50-250 million price range.

Click here for the release from Business Wire.