The Energy Transportation Uncertainty Index developed in Morão (2025) "The economic effects of tensions in energy transportation"

The Williams Companies is an American Fortune 500 energy company focused on natural gas infrastructure, processing, and transportation. Williams owns and operates midstream energy assets including the Transco pipeline (the largest natural gas pipeline in the United States), gathering and processing systems, and storage facilities.

Plains All American Pipeline is a major US corporation and Fortune 1000 company. The Plains All American Pipeline API provides programmatic access to its platform services, data, and integrations for enterprise customers and partners.

WGL Holdings was an integrated energy holding company headquartered in Washington, D.C., serving over 1 million customers across the District of Columbia, Maryland, and Virginia.

Western Midstream Partners (WES) is a midstream energy company that owns and operates oil, natural gas, and water gathering systems, natural gas processing plants, oil treating facilities, and crude oil, natural gas, and NGLs pipelines.

Plains GP Holdings owns an interest in Plains All American Pipeline, a publicly traded master limited partnership that owns and operates midstream energy infrastructure in the United States and Canada. No public developer API or developer portal has been published; this repository tracks corporate and investor resources.

NGL Energy Partners LP is a diversified midstream master limited partnership providing transportation, storage, blending, and marketing services for crude oil, natural gas liquids, refined products, and water solutions to producers and end-users across the energy industry.

Crestwood Equity Partners LP was a master limited partnership that owned and operated midstream energy assets across the United States, including natural gas, NGL, and crude oil gathering, processing, storage, and transportation businesses.

Targa Energy is a midstream natural gas and natural gas liquids (NGL) services company operating in North America. The company provides gathering, compression, treating, processing, and selling of natural gas; storing, fractionating, treating, transporting, and selling of NGLs.

Energy Transfer is one of the largest and most diversified midstream energy companies in North America, owning and operating natural gas, crude oil, NGL, and refined products pipelines, terminals, and storage facilities.

Williams Companies is a Fortune 500 energy infrastructure company that operates approximately 33,000 miles of natural gas pipeline infrastructure, moving roughly one-third of the nation's natural gas.

Genesis Energy is a diversified midstream energy master limited partnership with a focus on providing services to refineries, crude oil and natural gas producers, and industrial and commercial enterprises.

SemGroup was a midstream service provider that gathered, transported, stored, processed, and marketed crude oil, refined products, and natural gas liquids before being acquired by Energy Transfer.

Enterprise Products Partners L.P. is one of the largest publicly traded partnerships and a leading North American provider of midstream energy services, headquartered in Houston, Texas.

Energy Transfer Equity, L.P. (ETE) was a master limited partnership that owned and operated a diverse portfolio of midstream energy assets. In October 2018, ETE merged with its operating subsidiary Energy Transfer Partners (ETP) to form a single publicly traded partnership, Energy Transfer LP (NYSE: ET).

Enable Midstream Partners was a midstream energy company engaged in the gathering, processing, transportation, and storage of natural gas, natural gas liquids, and crude oil. Enable Midstream Partners was acquired by Energy Transfer LP in December 2021 and operations have been integrated into Energy Transfer's midstream business.

Kinder Morgan is one of the largest energy infrastructure companies in North America, owning and operating pipelines and terminals that transport natural gas, refined petroleum products, crude oil, carbon dioxide, and other commodities.

Regency Energy Partners LP (NYSE: RGP) was a publicly traded master limited partnership focused on midstream natural gas services including gathering, processing, contract compression, treating, and transportation of natural gas, crude oil, and natural gas liquids.

Adams Resources & Energy is a diversified energy company engaged in the marketing, transportation, terminalling, and storage of crude oil and other related petroleum products in select markets across the United States.

Magellan Midstream Partners owned the longest refined petroleum products pipeline system in the United States, along with refined petroleum products and crude oil storage facilities.