Natural gas (fuel)

Natural gas (fuel)
Name	Natural gas
Type	Fossil fuel
Main components	Methane, ethane, propane, butane
Discovered	Ancient seeps known in antiquity
Origin	Thermogenic and biogenic processes

Natural gas (fuel) is a fossil fuel composed primarily of methane used worldwide for heating, electricity generation, and as a feedstock for chemical industries. Its production, trade, and regulation intersect with major corporations, national policies, and international agreements, shaping energy transitions and geopolitics. Development of natural gas resources has influenced infrastructure projects, industrialization, and environmental law across continents.

Composition and Formation

Natural gas comprises hydrocarbons such as methane, ethane, propane, and butane found in sedimentary basins like the North Sea, Gulf of Mexico, and Permian Basin and forms through thermogenic and biogenic processes in source rocks such as Barnett Shale and Kimmeridge Clay. Geological factors including burial history, kerogen type studied in works like those by the United States Geological Survey and institutions such as the British Geological Survey determine gas maturation, migration, and accumulation in reservoirs like those exploited by BP, ExxonMobil, and Rosneft. Associated compounds including hydrogen sulfide and helium cause processing considerations discussed in reports by the International Energy Agency and regulations from agencies like the Environmental Protection Agency. Reservoir characterization employs methods developed at universities including Texas A&M University and Imperial College London and tools used by companies such as Schlumberger and Halliburton.

Extraction and Processing

Extraction uses conventional drilling, directional drilling pioneered in fields like Ekofisk, and unconventional techniques such as hydraulic fracturing applied in formations like the Marcellus Shale and Haynesville Shale with services from Halliburton and Baker Hughes. Offshore developments in regions including the Caspian Sea and projects by consortia involving Shell and TotalEnergies employ platforms and subsea systems engineered by firms like Saipem and Subsea 7. Processing at gas plants separates natural gas liquids and treats sour gas per standards from bodies such as American Petroleum Institute and International Organization for Standardization, and feedstock is conditioned for liquefaction at facilities influenced by technology from Air Products and Chemicals and Linde plc. Transportable forms include compressed natural gas (CNG) promoted by manufacturers like Cummins and liquefied natural gas (LNG) developed through projects such as QatarGas and the Sakhalin-II project.

Distribution and Storage

Distribution networks rely on high-pressure transmission pipelines like those crossing the Nord Stream and interconnectors managed by operators including Gazprom and Enbridge and on citygate distribution to utilities such as Con Edison and National Grid plc. International trade expanded with LNG shipping using tankers built by yards like Hyundai Heavy Industries and regasification terminals operated by firms such as Cheniere Energy and Pertamina. Storage solutions include depleted reservoirs, salt caverns used in the United Kingdom and United States facilities, and seasonal stockpiles overseen by entities like the International Gas Union. Pipeline geopolitics involves transit states exemplified by Ukraine and agreements like the Energy Charter Treaty affecting supply security.

Uses and Applications

Natural gas fuels power stations including combined-cycle plants owned by utilities such as Duke Energy and EDF, provides residential heating in cities like New York City and London, and serves as a feedstock for petrochemical complexes operated by BASF and SABIC producing ammonia and methanol. In transport, CNG and LNG power vehicles in fleets promoted by manufacturers like Volkswagen and shipping lines retrofitting vessels pursuant to International Maritime Organization regulations. Gas-to-liquids projects developed by companies such as Shell and research at institutions like Massachusetts Institute of Technology advance conversion technologies, while energy systems models from organizations such as the Intergovernmental Panel on Climate Change examine role of natural gas in decarbonization pathways.

Environmental and Health Impacts

Emissions from combustion and fugitive methane contribute to climate forcing examined by the Intergovernmental Panel on Climate Change and monitored by satellites from agencies like NASA and European Space Agency. Local air quality impacts, including nitrogen oxides and volatile organic compounds, are regulated by authorities such as the Environmental Protection Agency and assessed in studies by universities including Harvard University. Extraction controversies over hydraulic fracturing have prompted legal actions in jurisdictions like New York (state) and regulatory responses in countries such as France and Poland. Public health research collaborations involving institutions like the World Health Organization and Centers for Disease Control and Prevention investigate respiratory and other health outcomes near production sites.

Economics and Policy

Markets for natural gas are shaped by price hubs such as the Henry Hub and benchmarks like the TTF (Title Transfer Facility), trading on exchanges including the New York Mercantile Exchange and institutions such as the European Commission influence regulatory frameworks. State actors including Russia, Qatar, and United States producers and companies like Gazprom and QatarEnergy affect geopolitics and long-term contracts exemplified by deals involving China National Petroleum Corporation. Climate policy instruments such as emissions trading systems in the European Union and subsidies debated in legislatures like the United States Congress influence investment by sovereign wealth funds such as the Abu Dhabi Investment Authority and multilateral banks including the World Bank.

Safety and Infrastructure Standards

Safety standards derive from organizations like the American Society of Mechanical Engineers and regulations enforced by agencies such as the Pipeline and Hazardous Materials Safety Administration and Offshore Technology Regulator equivalents in various states. Incidents such as pipeline failures have prompted investigations by bodies including the National Transportation Safety Board and prompted adoption of technologies from firms like OSIsoft for real-time monitoring. Emergency response coordination involves municipal departments such as the New York City Fire Department and international cooperation through frameworks like those promoted by the International Association of Oil & Gas Producers.

Category:Fossil fuels