CVR Energy, Inc., together with its subsidiaries, engages in the petroleum refining and nitrogen fertilizer manufacturing activities in the United States.

PBF Energy Inc., together with its subsidiaries, engages in refining and supplying petroleum products. The company operates in two segments, Refining and Logistics.

HF Sinclair Corporation operates as an independent energy company. It produces and markets gasoline, diesel fuel, jet fuel, renewable diesel, specialty lubricant products, specialty chemicals, specialty and modified asphalt, and others.

Par Pacific Holdings, Inc. owns and operates energy and infrastructure businesses. The company operates through three segments: Refining, Retail, and Logistics.

Star Group, L.P. sells home heating and air conditioning products and services to residential and commercial home heating oil and propane customers in the United States.

Delek US Holdings, Inc. engages in the integrated downstream energy business in the United States. The company operates through three segments: Refining, Logistics, and Retail.

Sunoco LP, together with its subsidiaries, distributes and retails motor fuels in the United States. It operates in two segments, Fuel Distribution and Marketing, and All Other.

Phillips 66 operates as an energy manufacturing and logistics company. It operates through four segments: Midstream, Chemicals, Refining, and Marketing and Specialties (M&S).

Valero Energy Corporation manufactures, markets, and sells transportation fuels and petrochemical products in the United States, Canada, the United Kingdom, Ireland, and internationally.

CrossAmerica Partners LP engages in the wholesale distribution of motor fuels, operation of convenience stores, and ownership and leasing of real estate used in the retail distribution of motor fuels in the United States.

Marathon Petroleum Corporation, together with its subsidiaries, operates as an integrated downstream energy company primarily in the United States. It operates in two segments, Refining & Marketing, and Midstream.