Western Midstream Partners, LP, a midstream energy company, together with its subsidiaries, acquires, owns, develops, and operates primarily in the United States.

DT Midstream, Inc. provides integrated natural gas services in the United States. The company operates through two segments, Pipeline and Gathering.

MPLX LP owns and operates midstream energy infrastructure and logistics assets primarily in the United States. It operates in two segments, Logistics and Storage, and Gathering and Processing.

Hess Midstream LP owns, develops, operates, and acquires midstream assets. The company operates through three segments: Gathering; Processing and Storage; and Terminaling and Export.

EnLink Midstream, LLC provides midstream energy services in the United States. It operates through Permian, Louisiana, Oklahoma, North Texas, and Corporate segments.

Plains All American Pipeline, L.P., through its subsidiaries, engages in the pipeline transportation, terminalling, storage, and gathering of crude oil and natural gas liquids (NGL) in the United States and Canada.

Genesis Energy, L.P. operates in the midstream segment of the crude oil and natural gas industry. The company's Offshore Pipeline Transportation segment engages in offshore crude oil and natural gas pipeline transportation and handling operations; and in the deepwater pipeline servicing in the southern Keathley Canyon area of the Gulf of Mexico.

Dynagas LNG Partners LP, through its subsidiaries, operates in the seaborne transportation industry worldwide. The company owns and operates liquefied natural gas (LNG) carriers.

Martin Midstream Partners L.P., together with its subsidiaries, engages in terminalling, processing, storage, and packaging of petroleum products and by-products primarily in the United States Gulf Coast region.

NGL Energy Partners LP engages in the transportation, storage, blending, and marketing of crude oil, natural gas liquids, refined products / renewables, and water solutions.