Henry Hub

Henry Hub
U.S. Energy Information Administration · Public domain · source
Name	Henry Hub
Settlement type	Natural gas pipeline interconnection
Coordinates	30.2967°N 91.0767°W
Country	United States
State	Louisiana
Parish	Cameron Parish
Operator	Sabine Pipeline / Entergy Corporation
Established	1950s

Henry Hub Henry Hub is a major natural gas pipeline interconnection and distribution node located in Erath, Louisiana within Cameron Parish, Louisiana. It functions as the primary delivery point for the New York Mercantile Exchange NYMEX natural gas futures contract and thus serves as a critical reference point for pricing across North American gas markets. The facility links multiple interstate and intrastate pipeline systems, providing physical interchange that underpins trading, clearing, and settlement for energy markets and financial institutions.

Overview

Henry Hub sits at the junction of several prominent pipeline companies and transmission systems, connecting regional networks such as Texas Eastern Transmission Pipeline, Transcontinental Gas Pipe Line (Transco), and Gulf South Pipeline. Its designation as the delivery point for the NYMEX Henry Hub natural gas futures contract established the site as the benchmark for spot and futures pricing in the United States, influencing pricing indices published by S&P Global Platts, Argus Media, and other commodity price reporting agencies. Market participants including CME Group, Morgan Stanley, Goldman Sachs, and energy utilities reference prices settled at Henry Hub for hedging, risk management, and regulatory reporting.

History and Development

The hub emerged in the mid-20th century as pipeline buildout accelerated after World War II, when companies such as Sabine Corporation and Entergy expanded transmission capacity to serve growing demand from industrial centers in the Midwest United States and Southeast United States. The formalization of Henry Hub as the standard delivery point occurred when NYMEX selected it for its natural gas futures contract in the 1990s, a period concurrent with deregulation initiatives influenced by policies from the Federal Energy Regulatory Commission and landmark legislation debated in the United States Congress. Over subsequent decades, investments by firms like Enbridge and Kinder Morgan in interconnected pipelines and compressor stations increased throughput and operational resilience. Key events affecting the hub include disruptions from Hurricane Katrina, Hurricane Rita, and other Gulf Coast weather events that drove enhancements in resiliency planning and mutual assistance agreements among pipeline operators.

Infrastructure and Operations

Physically, Henry Hub comprises metering stations, regulation equipment, relief valves, and interconnects that tie together multiple high-pressure transmission pipelines operated by entities such as Spectra Energy (now part of Enbridge) and Kinder Morgan. Compression facilities maintained by pipeline operators manage flow and pressure, while measurement standards and custody transfer are governed by industry groups including the American Gas Association and standards from the National Institute of Standards and Technology where applicable. Operational coordination involves grid operations centers, telemetering by companies like El Paso Corporation (historic) and modern supervisory control and data acquisition systems used by Williams Companies. Seasonal demand swings driven by consumption in markets served by Southern Company and Entergy Corporation require nomination cycles, balancing agreements, and capacity rights to be actively managed among shippers such as Exelon and DTE Energy.

Role in Natural Gas Markets and Pricing

As the delivery point for the NYMEX natural gas futures contract administered by CME Group, the hub functions as the physical anchor for contract settlement, linking financial markets to the physical pipeline network. Price discovery at Henry Hub influences regional hubs like Chicago Citygate, PG&E Citygate, and SoCal Gas and is referenced by utilities, independent power producers such as NRG Energy, and LNG exporters including Cheniere Energy. Benchmark pricing at Henry Hub feeds into gas-indexed power contracts tied to PJM Interconnection, ERCOT, and ISO New England markets and informs tariff filings before the Federal Energy Regulatory Commission. Additionally, major commodity traders, hedge funds, and multinationals rely on Henry Hub-linked instruments to hedge exposure to natural gas price volatility in connection with global LNG trade and domestic production from basins like the Haynesville Shale and Marcellus Shale.

Ownership and Management

Ownership and operational responsibility for pipeline segments connected at the site are distributed among multiple corporate entities, including legacy operations by Sabine Pipeline affiliates and operational control centers managed by companies such as Enbridge, Kinder Morgan, and Williams Companies. Regulatory oversight is provided by the Federal Energy Regulatory Commission for interstate pipeline tariffs and by state commissions in Louisiana Public Service Commission for matters within state jurisdiction. Commercial arrangements among shippers, owners, and operators are governed by tariff schedules, interconnection agreements, and industry practices codified through trade associations like the Interstate Natural Gas Association of America.

Environmental and Safety Considerations

The hub operates within a region susceptible to tropical cyclones and coastal storm surge, which has prompted collaborative emergency response planning among stakeholders including U.S. Coast Guard liaison offices, state emergency management agencies such as the Louisiana Governor's Office of Homeland Security and Emergency Preparedness, and industry mutual aid frameworks administered by entities like the Pipeline and Hazardous Materials Safety Administration. Environmental review and permitting for infrastructure expansions involve agencies including the U.S. Environmental Protection Agency and the U.S. Army Corps of Engineers when wetlands or waterways are affected. Safety protocols for compressor stations and metering facilities follow guidance from PHMSA and industry best practices, while community and environmental groups, including regional audubon societies and conservation organizations, monitor impacts on coastal habitats and wetlands near the hub.

Category:Natural gas pipelines in the United States Category:Energy infrastructure in Louisiana