NFG vs DCI Comparison

National Fuel Gas Co is a diversified energy company involved in natural gas production, gathering, transportation, distribution, and marketing. It operates through three segments: Integrated Upstream and Gathering, Pipeline and Storage, and Utility. The majority of revenue comes from the Integrated Upstream and Gathering segment, which focuses on Seneca's natural gas exploration and development in the Appalachian region and Midstream operations supporting gas processing and gathering. The Pipeline and Storage segment transports and stores natural gas for customers in the northeastern United States and Canada, while the Utility segment supplies natural gas to retail customers in western New York and northwestern Pennsylvania. the company opeartes in United States.

Donaldson is a leading manufacturer of filtration systems and replacement parts (including air filtration systems, liquid filtration systems, and dust, fume, and mist collectors). The company serves a diverse range of end markets, including construction, mining, agriculture, truck, and industrial. Its business is organized into three segments: mobile solutions, industrial solutions, and life sciences. Donaldson generated approximately $3.7 billion in revenue in its fiscal 2025.