NAICS 21

Mining, Quarrying & Oil/Gas Extraction

NAICS 21 Mining, Oil & Gas Extraction: sector structure, major producers, commodity cycles, and regulatory landscape.

Published by VantaInsights Research·Methodology·Data Sources· AI-drafted
Built on data from Census Bureau CBP Bureau of Labor Statistics Federal Reserve FRED SEC EDGAR

Industry at a Glance

Sector-wide aggregates across all businesses classified under NAICS 21 (2017 classification frame). For specific sub-industries within this sector, see the individual reports below.

Employment
553K
US Census CBP · 2023 · NAICS 2017
Establishments
23K
US Census CBP · 2023 · NAICS 2017
Annual Payroll
$63.6B
US Census CBP · 2023 · NAICS 2017
Avg Annual Wage
$115,081
Derived from US Census CBP · 2023 · NAICS 2017
Market Size
$725.1B
US Census Economic Census · 2022 · NAICS 2017
gdp share
1.2%
BEA GDP-by-Industry · 2025 · NAICS 2017
value added
$384.3B
BEA GDP-by-Industry · 2025 · NAICS 2017

Industry Overview

NAICS 21 covers the extraction of naturally occurring minerals, petroleum, and natural gas from the earth. Oil and gas extraction dominates the sector's revenue, with the Permian Basin in West Texas and New Mexico serving as the highest-output producing region in the US, followed by the Bakken Formation in North Dakota and the Marcellus/Utica shale complex across Pennsylvania, West Virginia, and Ohio. ExxonMobil, Chevron, and ConocoPhillips lead upstream petroleum production, while Freeport-McMoRan and Newmont Corporation rank among the largest domestic mining operators in copper and gold respectively. The Bureau of Land Management and the Bureau of Ocean Energy Management administer federal mineral leasing on public lands and the Outer Continental Shelf. Operations fall under the Mine Safety and Health Administration (MSHA) for mining and the Pipeline and Hazardous Materials Safety Administration for transport. The sector's output is tightly coupled to global commodity price cycles: the WTI crude benchmark and Henry Hub natural gas price directly set operator margins, capital expenditure levels, and rig counts reported weekly by Baker Hughes.

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Industry Trends

$60B

Permian Basin consolidation accelerated with ExxonMobil's $60 billion acquisition of Pioneer Natural Resources and Chevron's $53 billion Hess Corporation deal, both closing in 2024—reshaping the independent producer landscape and concentrating acreage among supermajors.

III

Critical-mineral domestic sourcing is driven by the Defense Production Act Title III investments and DOE loan guarantees targeting lithium, rare earths, and graphite to support battery supply chains, with projects like Lithium Americas' Thacker Pass mine in Nevada advancing toward production.

EPA

Methane emission regulations under the EPA's updated Methane Emissions Reduction Program (finalized 2024) impose per-ton fees on excess methane from oil and gas facilities, pushing operators toward continuous leak detection (LDAR) and flare-reduction technologies.

04

Produced-water management in the Permian Basin is becoming a binding operational constraint, with disposal well capacity limits in New Mexico driving investment in water recycling systems and surface discharge permitting under state-specific frameworks.

500M

Coal-sector contraction continues as US coal production falls below 500 million short tons annually, with Appalachian thermal coal mines closing while Powder River Basin operators like Peabody Energy pivot toward metallurgical coal exports and mine-site solar development.

Specialty Reports Available on Request

28 specialty industriesavailable on request
▾
Crude Petroleum Extraction
211120View →
Natural Gas Extraction
211130View →
Bituminous Coal & Lignite Surface Mining
212111View →
Bituminous Coal Underground Mining
212112View →
Anthracite Mining
212113View →
Iron Ore Mining
212210View →
Gold Ore Mining
212221View →
Silver Ore Mining
212222View →
Copper, Nickel, Lead, & Zinc Mining
212230View →
Uranium-radium-vanadium Ore Mining
212291View →
All Other Metal Ore Mining
212299View →
Dimension Stone Mining & Quarrying
212311View →
Crushed & Broken Limestone Mining & Quarrying
212312View →
Crushed & Broken Granite Mining & Quarrying
212313View →
Other Crushed & Broken Stone Mining & Quarrying
212319View →
Construction Sand & Gravel Mining
212321View →
Industrial Sand Mining
212322View →
Kaolin & Ball Clay Mining
212324View →
Clay & Ceramic & Refractory Minerals Mining
212325View →
Potash, Soda, & Borate Mineral Mining
212391View →
Phosphate Rock Mining
212392View →
Other Chemical & Fertilizer Mineral Mining
212393View →
All Other Nonmetallic Mineral Mining
212399View →
Drilling Oil & Gas Wells
213111View →
Support Activities for Oil & Gas Operations
213112View →
Support Activities for Coal Mining
213113View →
Support Activities for Metal Mining
213114View →
Support Activities for Nonmetallic Minerals (Except Fuels) Mining
213115View →

Subsectors

Browse deeper into the NAICS hierarchy.

2110 reports

Oil & Gas Extraction

2120 reports

Mining (Except Oil & Gas)

2130 reports

Support Activities for Mining

Frequently Asked Questions

What is NAICS 21? ▾
NAICS 21 classifies establishments that extract minerals, petroleum, and natural gas. Its subsectors include oil and gas extraction (211), coal mining (2121), metal ore mining (2122), nonmetallic mineral mining and quarrying (2123), and support activities for mining (213). The US is the world's top producer of oil and natural gas and a top-five producer of copper, gold, and aggregates, making NAICS 21 a globally significant sector.
Which federal agencies regulate mining and oil/gas extraction? ▾
MSHA (Mine Safety and Health Administration) regulates mine worker safety under the Federal Mine Safety and Health Act. The Bureau of Land Management and Bureau of Ocean Energy Management manage federal mineral leasing. The EPA oversees environmental compliance including air emissions, wastewater discharge, and Superfund remediation of legacy mine sites. State agencies—such as the Texas Railroad Commission and the New Mexico Oil Conservation Division—regulate drilling permits, well spacing, and produced-water disposal.
How do commodity prices affect sector investment cycles? ▾
Oil and gas operators tie capital budgets directly to WTI crude and Henry Hub natural gas prices. When WTI sustains above $70/barrel, Permian Basin rig counts rise as breakeven economics justify new drilling. Below $50, operators cut capex and idle rigs. Mining follows similar dynamics: copper prices above $4/lb incentivize new mine development, while sub-$3.50 copper stalls expansion. The Baker Hughes weekly rig count and USGS commodity price indices are the standard barometers.
What is the critical minerals push and why does it matter? ▾
The US depends on imports for over 50 mineral commodities deemed critical by the USGS. The Inflation Reduction Act's clean-vehicle tax credits require increasing domestic or allied-nation sourcing of battery minerals—lithium, nickel, cobalt, graphite, and rare earths. This has spurred projects like Lithium Americas' Thacker Pass in Nevada, MP Materials' rare-earth processing at Mountain Pass in California, and Piedmont Lithium's proposed North Carolina operations, with billions in DOE Loan Programs Office backing.
How is the coal subsector adapting to declining demand? ▾
US coal consumption for power generation has fallen roughly 50% from its 2008 peak as utilities retire coal-fired plants in favor of natural gas and renewables. Appalachian producers face the steepest declines due to high extraction costs, while Powder River Basin operators in Wyoming retain cost advantages for remaining utility customers. Surviving operators like Arch Resources and CONSOL Energy are pivoting toward metallurgical coal for steelmaking, an export-driven market less affected by the domestic energy transition.

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