ConocoPhillips
ConocoPhillips is the world's largest independent exploration and production company, headquartered in Houston, Texas.
NYSE: DVN
Profile compiled and reviewed by the Houston Oil Companies Data Team from public filings and company sources.
Upstream · Independent E&P
Devon Energy
Devon Energy is a leading independent E&P company with significant Houston-area operations and major Permian Basin assets.
Devon Energy Corporation is a leading independent oil and natural gas exploration and production company. While headquartered in Oklahoma City, Devon has significant operations and employee presence in the Houston area, particularly since its 2021 merger with WPX Energy. Devon is one of the largest producers in the Permian Basin's Delaware Basin.
Headquarters
Oklahoma City, OK (major Houston presence)
Founded
1971
Employees
4,700+
Revenue
$15 billion (2023)
CEO
Clay Gaspar
Website
devonenergy.comDevon Energy was founded in 1971 by John Nichols and his son Larry Nichols in Oklahoma City. The company grew through major acquisitions including Mitchell Energy (2002, which gave it George Mitchell's pioneering Barnett Shale position) and WPX Energy (2021). The Mitchell Energy acquisition played a key role in the US shale revolution.
Devon's operations are concentrated in key US oil basins: the Delaware Basin (New Mexico/Texas), the Anadarko Basin (Oklahoma), the Powder River Basin (Wyoming), the Eagle Ford (Texas), and the Williston Basin (North Dakota). The company is one of the top Permian Basin producers.
Oklahoma City, OK (major Houston presence)
Amplify Energy
Independent E&P · Houston, TX
Callon Petroleum
Independent E&P · Houston, TX
Centennial Resource Development
Permian Basin E&P · Houston, TX
Comstock Resources
Natural Gas E&P · Frisco, TX (Houston Operations)
ConocoPhillips
Independent E&P · Houston, TX
Coterra Energy
Independent E&P · Houston, TX
ConocoPhillips is the world's largest independent exploration and production company, headquartered in Houston, Texas.
Pioneer Natural Resources was the largest pure-play Permian Basin E&P company before being acquired by ExxonMobil in 2024.
Occidental Petroleum is a major oil and gas producer known for its Permian Basin dominance and carbon capture leadership.
Marathon Oil is a Houston-based independent exploration and production company with operations in key US shale basins.
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