Enterprise Products Partners L.P. provides midstream energy services to producers and consumers of natural gas, natural gas liquids (NGLs), crude oil, petrochemicals, and refined products. It operates in four segments: NGL Pipelines & Services, Crude Oil Pipelines & Services, Natural Gas Pipelines & Services, and Petrochemical & Refined Products Services. The NGL Pipelines & Services segment offers natural gas processing and related NGL marketing services. It operates natural gas processing facilities located in Colorado, Louisiana, Mississippi, New Mexico, Texas, and Wyoming; NGL pipelines; NGL fractionation facilities; NGL and related product storage facilities; and NGL marine terminals. The Crude Oil Pipelines & Services segment operates crude oil pipelines; and crude oil storage and marine terminals, which include a fleet of approximately 250 tractor-trailer tank trucks that are used to transport crude oil. It also engages in crude oil marketing activities. The Natural Gas Pipelines & Services segment operates natural gas pipeline systems to gather, treat, and transport natural gas. It leases underground salt dome natural gas storage facilities in Napoleonville, Louisiana; owns an underground salt dome storage cavern in Wharton County, Texas; and markets natural gas. The Petrochemical & Refined Products Services segment operates propylene fractionation facilities, including propylene fractionation units and propane dehydrogenation facilities, and related marketing activities; butane isomerization complex and related deisobutanizer operations; and octane enhancement, isobutane dehydrogenation, and high purity isobutylene production facilities. It also operates refined products pipelines and terminals; and ethylene export terminals; and provides refined products marketing and marine transportation services. Enterprise Products Partners L.P. was founded in 1968 and is headquartered in Houston, Texas.

Cheniere Energy Partners, L.P., through its subsidiaries, provides liquefied natural gas (LNG) to integrated energy companies, utilities, and energy trading companies worldwide. The company owns and operates natural gas liquefaction and export facility at the Sabine Pass LNG Terminal located in Cameron Parish, Louisiana. It also owns a natural gas supply pipeline that interconnects the Sabine Pass LNG terminal with various interstate pipelines. The company was founded in 2003 and is headquartered in Houston, Texas. Cheniere Energy Partners, L.P. is a subsidiary of Cheniere Energy, Inc.

Western Midstream Partners, LP, together with its subsidiaries, operates as a midstream energy company primarily in the United States. It is involved in gathering, compressing, treating, processing, and transporting natural gas; gathering, stabilizing, and transporting condensate, natural gas liquids (NGLs), and crude oil; and gathering and disposing produced water. The company also buys and sells natural gas, NGLs, and condensate. It operates assets located in Texas, New Mexico, the Rocky Mountains, and North-central Pennsylvania. Western Midstream Holdings, LLC operates as the general partner of the company. The company was formerly known as Western Gas Equity Partners, LP and changed its name to Western Midstream Partners, LP in February 2019. Western Midstream Partners, LP was incorporated in 2007 and is based in The Woodlands, Texas.

CF Industries Holdings, Inc., together with its subsidiaries, engages in the manufacture and sale of hydrogen and nitrogen products for energy, fertilizer, emissions abatement, and other industrial activities in North America, Europe, and internationally. It operates through Ammonia, Granular Urea, UAN, AN, and Other segments. The company's principal products include anhydrous ammonia, granular urea, urea ammonium nitrate, and ammonium nitrate products. It also offers diesel exhaust fluid, urea liquor, nitric acid, and aqua ammonia products. The company primarily serves cooperatives, independent fertilizer distributors, traders, wholesalers, and industrial users. CF Industries Holdings, Inc. was founded in 1946 and is headquartered in Northbrook, Illinois.

CVR Energy, Inc., together with its subsidiaries, engages in the petroleum refining and marketing, and nitrogen fertilizer manufacturing activities in the United States. It operates in two segments, Petroleum and Nitrogen Fertilizer. The Petroleum segment refines and supplies gasoline, crude oil, distillate, diesel fuel, and other refined products. This segment also owns and operates a coking medium-sour crude oil refinery in southeast Kansas; and a crude oil refinery in Wynnewood, Oklahoma, as well as supporting logistics assets. This segment primarily serves retailers, railroads, farm cooperatives, and other refiners/marketers. The Nitrogen Fertilizer segment owns and operates a nitrogen fertilizer plant in North America that utilizes a pet coke gasification process to produce nitrogen fertilizer products; and a nitrogen fertilizer facility in East Dubuque, Illinois that produces nitrogen fertilizers in the form of ammonia and urea ammonium nitrate (UAN), nitric acid, and liquid and granulated urea. This segment primarily markets UAN products to agricultural customers; and ammonia products to agricultural and industrial customers. The company was founded in 1906 and is based in Sugar Land, Texas. CVR Energy, Inc. is a subsidiary of Icahn Enterprises Holdings L.P.

Natural Resource Partners L.P., together with its subsidiaries, owns, manages, and leases a portfolio of mineral properties in the United States. It operates in two segments, Mineral Rights and Soda Ash. The company owns interests in coal, soda ash, trona, and other natural resources. Its coal reserves are primarily located in the Appalachia Basin, the Illinois Basin, and the Northern Powder River Basin in the United States; industrial minerals and aggregates properties located in the United States; and oil and gas properties located in Louisiana. The company leases a portion of its reserves in exchange for royalty payments; and owns and leases transportation and processing infrastructure related to coal properties. NRP (GP) LP serves as the general partner of the company. Natural Resource Partners L.P. was incorporated in 2002 and is headquartered in Houston, Texas.

LSB Industries, Inc. engages in the manufacture, marketing, and sale of chemical products. The company provides nitrogen-based fertilizers, such as ammonia, fertilizer grade high density ammonium nitrate (HDAN), and urea ammonia nitrate for fertilizer for corn, pastures, and other crops, as well as nitrogen, phosphorus, and potassium (NPK) fertilizer blends application. It also offers high purity and commercial grade ammonia, high purity ammonium nitrate, sulfuric acids, mixed nitrating acids, carbon dioxide, and diesel exhaust fluids, as well as concentrated, and blended and regular nitric acids for various applications, including semiconductor, nylon, and polyurethane intermediates, ammonium nitrate, and metal processing; chemical feedstocks, emissions abatement, water treatments, and refrigerants; pulp and paper, aluminum, water treatment, metals, and vanadium processing; abatement for diesel vehicles; and food refrigeration, dry ice, and enhanced oil recovery. In addition, the company provides industrial grade and low density ammonium nitrate, and ammonium nitrate for explosives mining, quarries, and other blasting activities. It sells its products through distributors, as well as directly to end customers in the United States and other parts of North America. The company serves to the agricultural, industrial, and mining markets. LSB Industries, Inc. was incorporated in 1968 and is headquartered in Oklahoma City, Oklahoma.

Martin Midstream Partners L.P., together with its subsidiaries, provides terminalling, processing, storage, and packaging services for petroleum products and by-products primarily in the United States. The company operates in four segments: Terminalling and Storage, Transportation, Sulfur Services, and Specialty Products. The company's Terminalling and Storage segment owns or operates various marine shore-based terminal facilities and specialty terminal facilities that provide storage, refining, blending, packaging, and handling services for producers and suppliers of petroleum products and by-products. This segment also offers land rental services to oil and gas companies, as well as storage and handling services for lubricants and fuels. Its Transportation segment operates various trucks and tank trailers; and inland marine tank barges, inland push boats, and articulated offshore tug and barge unit to transport petroleum products and by-products, petrochemicals, and chemicals. The company's Sulfur Services segment processes molten sulfur into prilled or pelletized sulfur, which is used in the production of fertilizers and industrial chemicals. Its Specialty Products segment stores, distributes, and transports natural gas liquids for wholesale deliveries to refineries, industrial natural gas liquid users, and propane retailers. Martin Midstream GP LLC serves as a general partner of the company. Martin Midstream Partners L.P. was incorporated in 2002 and is based in Kilgore, Texas.