Aflac, through its subsidiaries, provides financial protection to people worldwide. The company's principal business is supplemental health and life insurance products. The company's insurance business consists of two reporting segments: Aflac Japan, which are designed to help consumers pay for medical and nonmedical costs that are not reimbursed under Japan's national health insurance system; and Aflac U.S., which the insurance products to provide supplemental coverage for people who already have primary medical or primary insurance coverage. The Aflac Japan's insurance products includes of cancer insurance, and medical insurance; and Aflac U.S. products includes of accident insurance, among others.

Allstate is a holding company. Through its subsidiaries, the company is engaged in the property and casualty insurance business. The company's segments include: Allstate Protection, which provides private passenger auto, homeowners, other personal lines and commercial insurance; Service Businesses, which includes SquareTrade that provides consumer protection plans and related technical support; Allstate Life, which provides interest-sensitive and variable life insurance products, as well as distributes non-proprietary retirement products; and Allstate Benefits, which provides voluntary benefits products, including life, accident, critical illness, and other health insurance products.

Berkshire Hathaway is a holding company. Co.'s subsidiaries are engaged in several business activities which include: underwriting private passenger automobile insurance; operation of a railroad system in North America; regulated electric and gas utility; manufacturing of products including industrial, consumer and building products; wholesale distribution of groceries and non-food items; provider of services including aviation pilot training, electronic components distribution and retailing businesses, including automotive dealerships; and manufactured housing and related consumer financing, transportation equipment, manufacturing and leasing, and furniture leasing.

Chesapeake Utilities is an energy company engaged in regulated and unregulated energy businesses. The company operates within two segments: Regulated Energy and Unregulated Energy. The company's regulated energy businesses consist of: regulated natural gas distribution operations; regulated natural gas transmission operations; and regulated electric distribution operations. The company's unregulated energy segment includes a propane operations; its natural gas marketing operation providing natural gas supply; its unregulated natural gas transmission/supply operation; its Combined Heat and Power Plant that generates electricity and steam; and its subsidiary that provides mobile compressed natural gas utility.

CNA Financial is an insurance holding company. The company's property and casualty and remaining life and group insurance operations are primarily conducted by its subsidiaries. The company's insurance products primarily include commercial property and casualty coverages, including surety. The company's services include warranty, risk management information services and claims administration. The company's commercial property and casualty underwriting operations in the United States consists of field underwriting locations and centralized processing operations which handle policy processing, billing and collection activities and also act as call centers to support service.

Consolidated Edison is a holding company. Through its subsidiaries, the company is engaged in provision of energy services. The company's subsidiaries include: Consolidated Edison Company of New York, Inc.'s principal business operations are its regulated electric, gas and steam delivery businesses; Orange & Rockland Utilities, Inc.'s principal business operations are its regulated electric and gas delivery businesses; Con Edison Clean Energy Businesses, Inc. develops, owns and operates renewable and energy infrastructure projects and provides energy-related products and services to wholesale and retail customers; and Con Edison Transmission, Inc. invests in electric and gas transmission projects.

EQT is a natural gas production company with operations focus in the Marcellus and Utica shales of the Appalachian Basin.

Equitable Holdings is a holding company. The company provides financial services. The company's Individual Retirement segment provides a range of variable annuity products which are sold to affluent and individuals saving for retirement or seeking retirement income. The company's Group Retirement segment provides tax-deferred investment and retirement plans sponsored by educational entities, municipalities and not-for-profit entities as well as small and medium-sized businesses. The company's Investment Management and Research segment provides investment management, research and related solutions. The company's Protection Solutions segment includes the company's life insurance and group employee benefits businesses.

Erie Indemnity is an attorney-in-fact for the subscribers (policyholders) at the Erie Insurance Exchange (Exchange), a reciprocal insurer that writes property and casualty insurance. The company's main function as attorney-in-fact is to perform policy issuance and renewal services on behalf of the subscribers at the Exchange. The company also acts as attorney-in-fact on behalf of the Exchange with respect to claims handling and investment management services, as well as the service provider for the claims handling, life insurance, and investment management services for its insurance subsidiaries. The company provides policy issuance and renewal services related to the sales, underwriting and issuance of policies.

Exelon is a utility services holding company engaged in the generation, delivery and marketing of energy through Exelon Generation Company, LLC and the energy distribution and transmission businesses through Commonwealth Edison Company, PECO Energy Company, Baltimore Gas and Electric Company, Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company. Through its business services subsidiary Exelon Business Services Company, LLC, the company provides its subsidiaries with a variety of support services.

Fidelity National Financial is a provider of title insurance, escrow and other title-related services, including trust activities, trustee sales guarantees, recordings and reconveyances and home warranty products and transaction services to the real estate and mortgage industries. The company has two segments: Title, which consists of the operations of the company's title insurance underwriters and related businesses which provide title insurance and escrow and other title-related services including trust activities, trustee sales guarantees, and home warranty products; and Corporate and Other, which includes the operations of the parent holding company, and the company's real estate technology subsidiaries.

Manulife Financial is a provider of financial protection and wealth management products and services, including individual life insurance, group life and health insurance, long-term care insurance, pension products, annuities and mutual funds to individual and group customers in Asia, Canada and the United States. Co. also provides investment management services with respect to Co.'s general fund assets, segregated fund assets, mutual funds, and to institutional customers. Co. also offers reinsurance services, specializing in property and aviation catastrophe risk reinsurance products.

Markel is a financial holding company. The company's business operations are: Underwriting, which comprised of risk-bearing insurance and reinsurance operations; Investing, which is primarily related to underwriting operations; Markel Ventures, Inc., includes controlling interests in a portfolio of businesses that operate outside of the specialty insurance marketplace; Insurance-linked securities, which include investment fund managers that provide investment products, including insurance-linked securities, catastrophe bonds, insurance swaps and weather derivatives; and Program services, which serves as a fronting platform that provides access to property and casualty insurance market.

MetLife, through its subsidiaries and affiliates, provides insurance, annuities, employee benefits and asset management. The company's segments include: United States; Asia; Latin America; Europe, the Middle East and Africa; and MetLife Holdings. In the United States, the company provides a variety of insurance and financial services products, including life, dental, disability, property and casualty, guaranteed interest, stable value and annuities to both individuals and groups. Outside the United States, the company provides life, medical, dental, credit and other accident and health insurance, as well as annuities, endowment and retirement and savings products to both individuals and groups.

National Fuel Gas is a holding company. Through its subsidiaries, the company is engaged principally in the production, gathering, transportation, distribution and marketing of natural gas. The company's segments are: Exploration and Production, which is engaged in the exploration for, and the development and production of, natural gas and oil reserves in California and in the Appalachian region; Pipeline and Storage, which provides interstate natural gas transportation and storage services, as well as transports and stores natural gas; Gathering, which builds, owns and operates natural gas processing and pipeline gathering facilities; and Utility, which provides natural gas utility services.

New Jersey Resources is an energy services holding company whose principal business is the distribution of natural gas through a regulated utility, providing other retail and wholesale energy services to customers and investing in clean energy projects and midstream assets. The company's segments are: Natural Gas Distribution, which consists of regulated natural gas services, off-system sales, capacity and storage management operations; Clean Energy Ventures, which consists of capital investments in clean energy projects; Energy Services, which consists of unregulated wholesale and retail energy operations; and Midstream, which consists of investments in the midstream natural gas market.

NiSource is an energy holding company. Through its subsidiaries, the company is a natural gas distribution company. The company's reportable segments are: Gas Distribution Operations and Electric Operations. For its gas distribution operations, through its wholly-owned subsidiary, NiSource Gas Distribution Group, Inc., the company owns distribution subsidiaries that provide natural gas to residential, commercial and industrial customers in Ohio, Pennsylvania, Virginia, Kentucky, Maryland and Massachusetts. Through its electric operations, the company generates, transmits and distributes electricity through its subsidiary, Northern Indiana Public Service Company LLC, and engages in wholesale and transmission transactions.

PPL is a utility holding company. Through its regulated utility subsidiaries, the company delivers electricity to customers in United Kingdom, Pennsylvania, Kentucky, and Virginia; delivers natural gas to customers in Kentucky; and generates electricity from power plants in Kentucky. The company's segments are: United Kingdom Regulated, which has regulated electricity distribution operations in United Kingdom; Kentucky Regulated, which is engaged in the regulated generation, transmission, distribution and sale of electricity in Kentucky and Virginia, and the distribution and sale of natural gas in Kentucky; and Pennsylvania Regulated, which delivers electricity in eastern and central Pennsylvania.

Principal Financial Group is an insurance holding company, engaged in investment management. The company provides businesses, individuals and institutional clients a range of financial products and services, including retirement, asset management and insurance through its financial services companies. The company provides long-term investment strategies to institutional, retirement, high net worth and retail clients by providing a range of capabilities including equity, fixed income, real estate and other alternative investments, as well as fund offerings. The company's segments include: retirement and income solutions; principal global investors; principal international; and United States insurance solutions.

Travelers Companies is a holding company. Through its subsidiaries, the company is engaged in providing commercial and personal property and casualty insurance products and services to businesses, government units, associations and individuals. The company's segments include: Business Insurance, which provides property and casualty insurance and insurance-related services; Bond and Specialty Insurance, which provides surety, fidelity, management liability, professional liability, and other property and casualty coverages and related risk management services, and certain specialty insurance products; and Personal Insurance, which writes property and casualty insurance covering individuals' personal risks.

UGI is a holding company. Through its subsidiaries and affiliates, the company distributes, stores, transports and markets energy products and related services. The company's segments are: AmeriGas Propane, which distributes propane and sells, installs, and services propane appliances, including heating systems; UGI International, which includes liquefied petroleum gas distribution businesses and energy marketing business; Midstream and Marketing, which includes energy-related businesses that conduct energy marketing in the Mid-Atlantic region of the United States; and UGI Utilities, which consists of the regulated natural gas distribution businesses and the regulated electric distribution business.

Unum Group is an insurance holding company. Through its subsidiaries, the company is a provider of financial protection benefits in the United States and the United Kingdom. The company has three segments: Unum US, which includes group long-term and short-term disability products, group life and accidental death and dismemberment products, and supplemental and voluntary lines of business, including individual disability and dental and vision products; Unum International, which includes its operations in the United Kingdom and Poland; and Colonial Life, which includes accident, sickness, and disability products, including dental and vision products, life products, and cancer and critical illness products.