AECOM designs, builds, finances and operates infrastructure assets for governments, businesses and organizations. The company provides: planning, consulting, architectural and engineering design services to commercial and government clients in transportation, facilities, environmental, energy, water and government markets; construction services, including building construction and energy, infrastructure and industrial construction; as well as program and facilities management and maintenance, training, logistics, consulting, technical assistance, and systems integration and information technology services, for agencies of the United States government and for other national governments.

BWX Technologies is a manufacturer of nuclear components, a developer of nuclear technologies and a service provider. The company operates three segments: Nuclear Operations Group, which engineers, designs and manufactures precision naval nuclear components, reactors and nuclear fuel for the U.S. Department of Energy/National Nuclear Security Administration's Naval Nuclear Propulsion Program; Nuclear Services Group, which provides services including nuclear materials processing and management and operating services; and Nuclear Power Group, which designs and manufactures commercial nuclear steam generators, heat exchangers, pressure vessels, reactor components and other auxiliary equipment.

Construction Partners is a holding company. Through its wholly owned subsidiaries, the company provides a variety of products and services to infrastructure projects, with a focus on highways, roads, bridges, airports, and commercial and residential sites. The company's primary operations consist of manufacturing and distributing hot mix asphalt (HMA), paving activities, including the construction of roadway base layers and application of asphalt pavement, site development, including the installation of utility and drainage systems, mining aggregates, such as sand and gravel, that are used as raw materials in the production of HMA, and distributing liquid asphalt cement in connection with HMA production.

CVR Energy is a holding company. The company is engaged in the petroleum refining and nitrogen fertilizer manufacturing industries through its holdings in CVR Refining, LP (CVR Refining) and CVR Partners, LP (CVR Partners). CVR Refining is an independent petroleum refiner and marketer of transportation fuels. CVR Partners produces and markets nitrogen fertilizers in the form of urea ammonium nitrate and ammonia. The company's segments include: Petroleum, which includes refineries located in Coffeyville, KS and Wynnewood, OK and supporting logistics assets in the region; and Nitrogen Fertilizer, which includes nitrogen fertilizer manufacturing facilities located in Coffeyville, KS and East Dubuque, IL.

Delek US Holdings is a holding company. Through its subsidiaries, the company is engaged in the downstream energy business focused on petroleum refining, the transportation, storage and wholesale distribution of crude oil, intermediate and refined products and convenience store retailing. The company's segments are: refining, which processes crude oil and other feedstocks for the manufacture of transportation motor fuels; logistics, which gathers, transports and stores crude oil and markets, distributes, transports and stores refined products; and retail, which includes the operations of Alon USA Energy, Inc.'s convenience store sites located primarily in central and West Texas and New Mexico.

EMCOR Group is an electrical and mechanical construction and facilities services firm. In addition, the company provides building services and industrial services. The company's services are provided to its customers through its operating subsidiaries and joint venture entities. The company engages in providing construction services relating to electrical and mechanical systems in various types of facilities and in providing various services relating to the operation, maintenance and management of facilities. The company also provides its construction services indirectly by acting as a subcontractor to general contractors, systems suppliers, construction managers, developers, property managers and other subcontractors.

Fluor is a holding company. Through its subsidiaries, the company provides engineering, procurement, construction, fabrication and modularization, operations, maintenance and asset integrity, as well as project management services. The company serves a set of industries including oil and gas, chemicals and petrochemicals, mining and metals, transportation, power, life sciences and manufacturing. The company is also a service provider to the U.S. federal government and governments abroad; and it performs operations, maintenance and asset integrity activities for industrial clients. The company has four segments: Energy & Chemicals; Mining, Industrial, Infrastructure & Power; Diversified Services; and Government.

Granite Construction is a holding company, which delivers infrastructure solutions for public and private clients. The company's segments are: Transportation, which focuses on construction and rehabilitation of roads, pavement preservation, bridges, rail lines, airports and marine ports; Water, which focuses on water-related construction and water management solutions; Specialty, which focuses on construction of various complex projects including infrastructure/site development, mining, public safety, tunnel and power projects; and Materials, which focuses on production of aggregates, asphalt and construction related materials as well as proprietary sanitary and storm water rehabilitation products.

IES Holdings is a holding company. The company has four business segments: Commercial & Industrial, which provides electrical and mechanical design, construction, and maintenance services to the commercial and industrial markets in various regional markets and nationwide in certain areas such as the power infrastructure market; Communications, which provides technology infrastructure services to corporations and independent businesses; Infrastructure Solutions, which provides electro-mechanical solutions for industrial operations; and Residential, which provides electrical installation services for single-family housing and multi-family apartment complexes.

Marathon Petroleum is an independent petroleum refining and marketing, retail and midstream company. The company's segments include: Refining and Marketing, which refines crude oil and other feedstocks at its refineries, purchases refined products and ethanol for resale and distributes refined products; Retail, which sells transportation fuels and convenience products in the retail market across the U.S.; and Midstream, which transports, stores, distributes and markets crude oil and refined products via refining logistics assets, pipelines, terminals, towboats and barges, gathers, processes and transports natural gas, and gathers, transports, fractionates, stores and markets natural gas liquids.

Murphy USA is a holding company. Through its subsidiaries, the company's business consists primarily of the marketing of retail motor fuel products and convenience merchandise through its retail stores. The company's retail stores are located in the Southeast, Southwest and Midwest United States. The company's business also includes certain product supply and wholesale assets, including product distribution terminals and pipeline positions. The company purchases fuel from oil companies, independent refiners, and other marketers, and it sells fuel to its customers. In addition to the motor fuel sold at the company's stores, its stores carry a selection of snacks, beverages, tobacco products and non-food merchandise.

MYR Group is a holding company of electrical construction service providers. Through its subsidiaries, the company serves the electric utility infrastructure, commercial and industrial construction markets located throughout the U.S. and Canada. The company manages its operations through two segments: Transmission and Distribution, which provides services on electric transmission and distribution networks and substation facilities; and Commercial and Industrial, which provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of bridge, roadway and tunnel lighting.

NV5 Global is a provider of technical engineering and consulting services, providing solutions to public and private sector clients in the energy, transportation, water, government, hospitality, education, healthcare, commercial and residential markets. The company's operations are organized into two reportable segments: Infrastructure, which includes its engineering, civil program management, and construction quality assurance, testing, and inspection practices; and Building, Technology and Sciences, which includes its energy, environmental, and building program management practices.

Parsons is a provider of technology-driven solutions in the defense, intelligence and critical infrastructure markets. The company provides technical design and engineering services and software to address the company's customers' challenges. The company has developed significant expertise and differentiated capabilities in key areas of cybersecurity, intelligence, defense, military training, connected communities, physical infrastructure and mobility solutions. The company performs work in various foreign countries through local subsidiaries, joint ventures and foreign offices maintained to carry out specific projects.

PBF Energy is a holding company. Through its subsidiaries, the company is engaged as an independent petroleum refiner and supplier of unbranded transportation fuels, heating oil, petrochemical feedstocks, lubricants and other petroleum products in the U.S. The company operates in two business segments: refining, which the company produces a variety of products at each of its refineries such as gasoline, ultra-low-sulfur diesel, heating oil, jet fuel, lubricants, petrochemicals and asphalt; and logistics, which through its PBF Logistics LP subsidiary, the company owns or leases, operates, develops and acquires crude oil and refined petroleum products terminals, pipelines, storage facilities and similar logistics assets.

Phillips 66 is an energy manufacturing and logistics company with midstream, chemicals, refining, and marketing and specialties businesses. The company's segments include: Midstream, which provides crude oil and refined petroleum product transportation, terminaling and processing services, as well as natural gas and natural gas liquids transportation, storage, processing and marketing services; Chemicals, which manufactures and markets petrochemicals and plastics on a worldwide basis; Refining, which refines crude oil and other feedstocks into petroleum products; and Marketing and Specialties, which purchases for resale and markets refined petroleum products, mainly in the United States and Europe.

Primoris Services, through its subsidiaries, provides a range of construction, fabrication, maintenance, replacement, and engineering services to main public and private utilities, petrochemical companies, energy companies, municipalities, state departments of transportation and other customers. The company installs, replaces, repairs and rehabilitates natural gas, refined product, water and wastewater pipeline systems; large diameter gas and liquid pipeline facilities; electric utility systems; and heavy civil projects, earthwork and site development. The company also constructs mechanical facilities and other structures. Finally, the company provides process and product engineering services.

Quanta Services is a provider of contracting services, delivering infrastructure solutions for the electric power, energy and communications industries in the United States, Canada, Australia, Latin America and select other international markets. The company has two segments: Electric Power Infrastructure Services, which provides network solutions to customers in the electric power industry and services that support the development of renewable energy generation; and Pipeline and Industrial Infrastructure Services, which provides infrastructure solutions to customers involved in the development, transportation, distribution, storage and processing of natural gas, oil and other products.

Sterling Construction is a construction company that focuses in heavy civil construction and infrastructure rehabilitation as well as residential construction projects. The company operates primarily in Arizona, California, Colorado, Hawaii, Nevada, Texas and Utah, as well as other states. The company's heavy civil construction projects include highways, roads, bridges, airfields, ports, light rail, water, wastewater and storm drainage systems, foundations for multi-family homes, commercial concrete projects and parking structures. Residential construction projects include concrete foundations for single-family homes.

Tutor Perini is a construction company. The company operates in three segments: Civil, which focuses on public works construction and the replacement and reconstruction of infrastructure; Building, which provides services to various building markets for private and public works customers, including hospitality and gaming, transportation, health care, commercial offices, sports and entertainment, education, correctional facilities, biotech and pharmaceutical, among others; and Specialty Contractors, which focuses on electrical, mechanical, plumbing, heating, ventilation and air conditioning, fire protection systems and pneumatically placed concrete for civil and building construction projects.

Valero Energy is an international manufacturer and marketer of transportation fuels and petrochemical products. The company's segments include: Refining, which includes its refining operations, the associated marketing activities, and logistics assets that support its refining operations; Ethanol, which includes its ethanol operations, the associated marketing activities, and logistics assets that support its ethanol operations; and Renewable Diesel, which includes the operations of its joint ventture, Diamond Green Diesel Holdings LLC, which owns and operates a renewable diesel plant in Norco, LA.