NGP (Natural Gas Partners, now NGP Energy Capital Management ) is a prominent U.S. private equity firm founded in 1988 and one of the largest and longest-established dedicated natural-resources and energy-sector PE firms globally. The firm makes direct equity investments in the energy sector aEUR" historically concentrated in oil and gas upstream exploration-and-production, midstream pipelines and processing, energy-services, and more recently energy-transition / renewable-energy / decarbonisation investments. NGP has aggregate cumulative equity commitments exceeding USD 20 billion+ across its flagship funds over 35+ years of operation, with headquarters in Irving, Texas (Dallas-Fort Worth area, heart of the U.S. energy industry). NGP is a majority-owned strategic partnership with The Carlyle Group (NASDAQ: CG) aEUR" Carlyle acquired a significant stake in NGP's general-partner economics, creating a long-standing strategic relationship between the two firms. Notable portfolio companies have included Antero Resources (NYSE: AR, Appalachian natural gas), Rice Energy (acquired by EQT), various Permian Basin and Eagle Ford energy companies, and many others producing substantial exits over the firm's multi-decade history.