March 30, 2021

Oil and Gas Companies


Oil and gas companies are the driving force behind the world’s traditional energy production. These companies see success thanks to the hard-working staff and maritime employees that manage their operations. Jones Act Seaman and other maritime workers provide needed work in an oil and gas accident-prone environment.

We’ve put together the list below of some common oil and gas companies for informational purposes. Operating around the globe, these companies employ maritime workers to handle oil and gas production and transportation of products to serve customers worldwide.

Oil and Gas Companies That Operate in the Gulf of Mexico, Louisiana and the Gulf South:

A.P. Moller – Maersk Group
Allseas USA, Inc.
BP Oil Company
Chevron Oil Company
Cobalt International Energy L.P.
ConocoPhillips Oil Company
ExxonMobil Oil & Gas Corporation
Marathon Oil
National Oilwell Varco (NOV)
Orion Marine Group
Samson Resources
Schlumberger Oilfield Services
Royal Dutch Shell
A.P. Moller – Maersk Group

oil and gas companies A.P. Moller - Maersk

New Orleans Office Address:
1350 Port of New Orleans Place
New Orleans, LA 70130
United States

A.P. Moller – Maersk Group is the operator of the Maersk Line, the largest shipping container company in the world. The Maersk Line serves the oil and gas industry with a fleet of 604 vessels, operated from 374 offices in 116 countries.

A.P. Moller – Maersk Group’s container shipping operation is the largest part of its overall business. With the help of over 89,000 employees, the Maersk Group ships approximately 11 million containers annually. The Maersk Line also owns the largest container ship worldwide, the Emma Maersk, that has the capacity to carry over 15,000 containers onboard. In an effort to make its shipping industry more environmentally friendly, the Maersk Line has a goal of reducing its emissions by 60% per container by 2020.

The Maersk Line, Limited (MLL) is A.P. Moller – Maersk Group’s US shipping subsidiary. Headquartered in Norfolk, Virginia, the Maersk Line, Limited serves both the US government and commercial customers with the largest US flag fleet in commercial service. The MLL employs approximately 5,000 across the US.

In 2009, the Maersk Alabama was involved in a piracy hijacking, the first successful seizure of a US flagship by pirates since the 1800s. The incident resulted in a hostage situation involving the Captain, Richard Phillips, but was concluded when the US Navy interfered. This incident was the inspiration for the 2013 film, Captain Phillips.

Allseas USA, Inc.

oil and gas companies Allseas USA

333 N. Sam Houston Pkwy E.
Suite 950
Houston, Texas 77060

Allseas USA is the US division of the Swiss-based Allseas Group S.A. and handles all the North and South American project management and engineering business for the Group. Specializing in offshore pipeline installation and subsea construction, Allseas S.A. employs 2,500 worldwide.

Allseas USA manages a fleet of specialized vessels, all engineered in-house, developed to support pipelay and construction operations. Allseas Group S.A. has a history of technological advancement and is the company that developed the first dynamic positioning pipelay vessel. Today, it operates the largest pipelaying vessel in the world which set the world record for ultra-deepwater pipeline installation in 2007 by laying pipe at a depth of 9,100 feet in the Gulf of Mexico.

Outside of the US, the Allseas Group S.A. has offices in Australia, Portugal, the UK, Belgium, the Netherlands, and India.

BP Oil Company

oil and gas companies BP

Port Fourchon Office Address:
106 9th Street, C-Port 1
Port Fourchon, LA 70357

BP, or British Petroleum, is one of the largest oil and gas companies in the world. The company’s oil and gas industry operations include but aren’t limited to exploration, production, refining, and distribution. Headquartered in London, England, BP operates in 80 countries, employing 84,500 to produce 3.2 million barrels of oil per day. BP distributes under the following brands, BP, Castrol, AMPM, and Arol.

BP came under worldwide scrutiny in April 2010 when its oil rig, The Deepwater Horizon, exploded, killing 11 people and causing the largest oil spill ever seen in United States waters. The oil spill continued until July of 2010, and it is estimated that 4.9 million barrels of oil had been released into the Gulf of Mexico. BP was held accountable for the accident and was made to pay approximately $53.8 billion to compensate for the disaster, which included fines, penalties, and economic claims made by affected states.

The Deepwater Horizon disaster called attention to the need for stricter safety guidelines. Since the accident, the United States has instituted new oversight committees as well as regulations on the use of safety management systems.

BP is featured on the New York Stock Exchange under the symbol BP. After the Deepwater Horizon disaster, its stock dropped drastically. In the following years, it somewhat recovered but is affected by the rise and fall of gas prices.

Chevron Oil Company

oil and gas companies Chevron

Louisiana Office Address:
70330 LA-21
Covington, LA 70433

Chevron is a leading energy company that operates primarily in the oil and gas industry employing thousands of maritime workers. Their business involves the production and transportation of oil and natural gas, the market and distribution of fuel and lubricant, the production of petrochemical products, and the investment into renewable energy solutions.

Chevron’s business is separated into three segments, Exploration and Production, Manufacturing, Products and Transportation, and Other Businesses. The Exploration and Production business involves Chevron’s oil and natural gas operations. In 2014, Chevron produced an average of 2.57 million barrels per day, 26 percent produced directly from operations in the United States.

The company’s downstream industry, managed by its Manufacturing, Products and Transportation segment handles the refinement and sale of fuels and lubricants. Chevron’s refineries are primarily located in North American, South Africa, and the Asia-Pacific region, and in 2014 it’s refining capacity reached 1.9 million barrels of crude oil a day. Chevron’s sale of fuels and lubricants handled under the Chevron, Texaco, and Caltex brands selling to customers in the US, western Canada, Latin America, southern Africa, and the Asia-Pacific region. Chevron manages the transportation of its oil and natural gas, petrochemical and refined products through Chevron Pipe Line co. or through its fleet of vessels to ship to locations across the globe.

Chevron is listed on the New York Stock Exchange under the symbol CVX. Its stock price has held somewhat steady in the last years but is ultimately tied to the fluctuating price of oil.

Cobalt International Energy L.P.

oil and gas companies cobalt

920 Memorial City Way, Suite 100
Houston, TX 77024

Operating in the deepwater regions of the Gulf of Mexico and West Africa, Cobalt International Energy specializes in the exploration of oil. Headquartered in Houston, TX, Cobalt has primarily been an oil exploration company since its inception in 2005. Still, the company is focusing on expanding its services to include new project development and oil production projects.

Cobalt’s oil exploration business is operated through the use of its assets that feature deepwater subsalt and pre-salt regions. To acquire these assets, Cobalt utilizes subsurface and seismic data to determine critical areas that may contain valuable oil reservoirs.

In 2011, the Securities and Exchange Commission (SEC) filed an investigation order against Cobalt due to an allegation that they had violated the Foreign Corrupt Practices Act. Cobalt, the SEC alleged, had access to its Angola oil wells due to the bribery of foreign officials. In January of 2015, the SEC dropped its investigation, although there is a parallel investigation being conducted by the US Justice Department.

ConocoPhillips Oil Company

oil and gas companies conoco

600 North Dairy Ashford
Houston, TX 77252-2197

ConocoPhillips is a leading independent oil and gas production company employing maritime workers throughout the world. ConocoPhillip’s business is focused on the exploration, production, transportation, and market of crude oil, bitumen, and natural gas.

ConocoPhillips was formed from the merger of Conoco Inc, and Phillips Petroleum in 2002. ConocoPhillips oil and gas business is handled through six segments named after the region in which operations are managed, including Alaska, Lower 48, Canada, Europe, Asia Pacific, Middle East, and Other International. The company employs 17,800 in 27 countries across the globe and has an emphasis on safety, production protection, project development innovation, and the addition of resources found through exploration operations. ConocoPhillips produced an average of 1,540 million barrels of oil per day in 2014.

ConocoPhillips North American assets produce 716 million barrels of oil equivalent per day (as of 2014) and feature 13 million acres in the Lower 48, including acreage in the Eagle Ford, Bakken, Permian and Gulf of Mexico regions.

ConocoPhillips is listed on the New York Stock Exchange under the symbol COP. The company’s stock has kept a pretty consistent trajectory but is inevitably tied to the oil industry and the fluctuating price of oil.



Louisiana Office Address:
620 Moulin Rd
Broussard, LA 70518

Valaris (formerly ENSCO until 2019) is a leading offshore drilling firm that serves the oil and gas industry. Headquartered in London, England, Valaris operates across six continents utilizing its deepwater and ultra-deepwater fleet.

Working alongside the world’s leading oil companies, Valaris manages operations through three business units: North and South America, Europe, and the Mediterranean, and the Middle East, Africa, Asia, and Pacific Rim.

Valaris’ operational fleet includes drillships, dynamically-positioned semisubmersibles, moored semisubmersibles, and premium jackups. Valaris’ drillships and semisubmersibles, or floaters, have capabilities to reach ultra-deepwater in depths of up to 10,000 feet. Valaris also manages 39 premium jackups, making it the operator of the world’s largest premium jackup fleet.

Valaris holds safety as an essential priority on its fleet. Managing employee safety through its Safety, Health, and Environment (SHE) Management System, the system helps Valaris manage risks while allowing the company to improve continually.

Although Valaris has safety precautions in place for its workers, accidents unfortunately still occur. In 2014, two then-ENSCO oil rig workers were involved in a fatal accident on the ENSCO 104. The workers suffered fatal head injuries when an accident happened during a routine lifeboat inspection after a safety harness snapped.

ExxonMobil Oil & Gas Corporation

oil and gas companies Exxon Mobil

5959 Las Colinas Boulevard
Irving, Texas 75039-2298

ExxonMobil is a leading oil and gas corporation that’s business is in the energy and petrochemical industries. ExxonMobil employs maritime workers that explore oil and natural gas on six continents and markets, resulting in products in most countries around the world.

ExxonMobil is the world’s fifth-largest company by revenue and was formed from the merger of Exxon and Mobil in 1999. The company’s oil and gas exploration and production operates under four business divisions, including upstream, downstream, chemical, and natural gas and power marketing. ExxonMobil’s fuels and lubricant business is conducted under three brands, including Exxon, Esso, and Mobil. In the US, ExxonMobil has 10,000 Exxon and Mobil-branded service stations, while Esso stations can be found outside of the states in North America, Asia-Pacific, and Europe.

ExxonMobil is one of the world’s supermajors and produces 4.1 million oil-equivalent barrels per day. ExxonMobil is headquartered in Irving, Texas and is listed on the New York Stock Exchange under the symbol XOM.


oil and gas companies Halliburton

3000 N. Sam Houston Pkwy E.
Houston, TX 77032

Halliburton is an oilfield services company that provides products and services to the oil and gas industry and employs thousands of maritime workers. Halliburton employs approximately 65,000 worldwide in over 80 countries.

The Halliburton business includes 13 product service lines that are operated in two divisions, Drilling and Evaluation and Completion and Production.

The Drilling and Evaluation division offers field and reservoir modeling, drilling, evaluation, and well-bore placement solutions. The Drilling and Evaluation division features six Halliburton product service lines, including baroid, sperry drilling, drill bits and services, testing and subsea, wireline and perforating, and landmark. The Completion and Production division provides cementing, stimulation, well intervention, pressure control, pipeline and process services, and completion services. The Completion and Production division features six product service lines, including artificial lift, multi-chem, cementing, production enhancement, completion tools, and production solutions. Consulting and project management is used to support both divisions and their operations.

In 2014, Halliburton was found negligent for its involvement in the Deep Water Horizon disaster, which began as an explosion in April 2010, resulting in the spill of approximately 4.9 million barrels of oil into the Gulf of Mexico. While Halliburton was found negligent, a federal judge was quoted as saying it was only to blame for about 3 percent of the disaster. Halliburton reached a settlement with the US District Court in New Orleans to pay $1.1 billion to resolve claims surrounding the Deepwater Horizon oil spill and its involvement.

Marathon Oil

oil and gas companies marathon oil

5555 San Felipe Street
Houston, TX 77056-2723

Marathon Oil is an energy exploration and production company headquartered in Houston, Texas. Marathon Oil’s business is managed in three segments, North American Exploration and Production, International Exploration and Production, and Oil Sands Mining with operations based in North America, Africa, and Europe. In 2014, Marathon Oil’s net proved produced 2.2 billion barrels of oil across all assets.

Marathon Oil claims its operational success is mostly thanks to its seven strategic imperatives. These imperatives include investing in its employees, continuous improvement with an emphasis on capital efficiency, portfolio management, acquiring quality assets, and delivering long-term value to its shareholders.

The importance that Marathon Oil puts on quality technology is also a differentiator for the company. Marathon’s drilling operations focus on horizontal as well as deepwater and conventional wells. Once the well is in production, the company ensures that it operates at maximum efficiency by optimizing its production efficiency.

Marathon Oil Corporation employs 3,300 (as of 2014) and is listed on the New York Stock Exchange under the symbol MRO. Although regularly an even performer on the stock market, Marathon Oil’s stock is highly dependent on the oil industry and its performance.

National Oilwell Varco (NOV)

oil and gas companies NOV

7909 Parkwood Circle Drive
Houston, Texas 77036

National Oilwell Varco (NOV) provides the design and manufacturing of drilling equipment to the oil and gas industry. Headquartered in Houston, Texas, NOV manages operations for 2,371 rigs in its U.S fleet.

NOV manages its business operations in three segments, NOV Rig Systems, NOV Wellbore Technologies, and NOV Completion & Production Solutions. NOV Rig Systems handles the manufacturing of drilling rigs for land and offshore wells. NOV Rig Systems continually improves its equipment technology, including the utilization of robotics to increase automation and shorten lead times for the industry. The company also provides aftermarket services for its rig systems. NOV Wellbore Technologies designs the equipment needed for wellbore construction, including fluid control systems, tubular inspection services, downhole products, and automated solutions. NOV Completion & Production Solutions creates and manufactures equipment and systems for oil and gas production. This includes providing customers with fiberglass systems, floating production systems, intervention and stimulation equipment, process and flow technologies, subsea production systems, and XL systems.

National Oilwell Varco is registered on the New York Stock Exchange under the symbol “NOV.” National Oilwell Varco has seen good years on the stock market, but the company’s stock is ultimately tied to the oil industry and the price of oil.

Orion Marine Group

oil and gas companies Orion

12000 Aerospace Avenue, Suite 300
Houston, TX 77034

Orion Marine Group is a marine construction management company headquartered in Houston, Texas, that serves the oil and gas industry. Orion Marine Group specializes in offering marine construction, design, and specialty turnkey solutions and manages these operations in the US, Canada, and Caribbean Basin.

Orion Marine Group works with private commercial customers as well as federal agencies, state and municipal governments. Orion provides its services through the use of its specialized marine equipment fleet. This fleet includes 400 pieces of equipment featuring 60 spud barges, 200 cranes, a dredge fleet, and 60 tug and push boats. Orion believes in maintaining its specialized fleet to ensure that the right equipment is available for whatever a customer’s project needs.

Able to offer solutions that benefit a multitude of marine construction projects, Orion’s service offerings specifically are designed to help with the construction of transportation structures, pipeline projects, environmental facilities, and dredging operations. The company also offers specialty services to fit the needs of its customers, including diving, inspection, maintenance, salvage, and repair.

The Orion Marine Group is listed on the New York Stock Exchange under the symbol “ORN.” The company’s stock, while mostly steady, is relatively dependent on the price of oil.

Samson Resources

Two West Second Street
Tulsa, OK USA 74103-3103

Samson Resources is an oil and natural gas company that specializes in exploration, development, and production. Samson Resources’ land-based assets include approximately two million acres in basins across the US.

Samson operates its business from its headquarters Tulsa, Oklahoma, and has other offices in Denver, Colorado, and The Woodlands, Texas. The company is separated into three divisions, the Rockies, Mid-Continent and East Texas, to manage where most of its assets are located.

The Rockies division of Samson Resources manages assets in a region that reaches from New Mexico to the Canadian border. This region includes oil, liquids, and gas producing assets in the Williston, Powder River, Green River, and San Juan basins. The Mid-Continent division has Samson Resources assets in Oklahoma, Texas, Kansas, and Arkansas. The East Texas division features oil and liquids-rich assets in east Texas and northern Louisiana, including resources in the Cotton Valley, Travis, Peak, and Haynesville/Bossier Shale.

Samson Resources was purchased by Kohlberg Kravis Roberts & Co in 2011 for $7.2 billion. Unfortunately, due to the industry’s low crude oil prices, Samson Resources has had some financial woes in recent years. Samson filed for chapter 11 bankruptcy in September of 2015.

As of January 2021, Samson Resources is selling its remaining assets and is preparing to shut their doors for good.

Schlumberger Oilfield Services

oil and gas companies Schlumberger

5599 San Felipe, 17th FL
Houston, Texas 77056

Schlumberger is the world’s leading oilfield services company. Schlumberger employs over 95,000 in over 85 countries to supply oil and gas customers with technology, integrated project management, and information solutions.

Founded in 1927 by two brothers, the company started as a supplier of wireline logging to obtain downhole data in oil and gas wells. Today, the company has grown into an innovative oil and gas technology solutions company that focuses on research and development to support industry technological growth.

Schlumberger prides itself on the fact that its technologies allow customers to enhance their operational efficiency and productivity. Schlumberger’s emphasis on technology is proven by the company’s investment of $1.21 billion in research and engineering in 2014.

In early 2016, Schlumberger announced that its 2015 fourth quarter saw a loss, with revenue falling 39%. This was primarily because the oil and gas industry had been facing low oil prices. To adjust costs and try to counteract its financial woes, Schlumberger laid off 10,000 of its staff in late 2015.

Royal Dutch Shell

oil and gas companies shell

Carel van Bylandtlaan 16,
2596 HR The Hague,
The Netherlands

Royal Dutch Shell, or Shell as known in the U.S., is comprised of a group of energy and petrochemical companies headquartered in The Netherlands. Shell is the fourth-largest company in the world, employing 94,000 in 70 countries and is one of the oil and gas industry’s supermajors.

Shell runs its business through five business segments, Upstream, Integrated Gas, Unconventional Resources, Downstream, and Projects and Technology.

Through its Upstream segment, Shell explores for natural gas and crude oil in its onshore, offshore and deepwater assets across the globe. Shell’s Upstream segment produces more than 3 million barrels of oil and natural gas per day. Shell’s Integrated Gas segment cools natural gas to create liquefied natural gas, converts natural gas to liquids, and manages the transportation infrastructure to deliver Shell’s oil and gas products to market. It’s Unconventional Resources segment produces tight and shale oil and gas and extracts bitumen from mined oil sands to convert to synthetic crude oil. Shell’s Downstream segment manufactures oil products, biofuels, and chemicals that are then distributed and sold. It’s Projects and Technology division manages research and development for the company, in which Shell invests $1 billion a year. Shell also operates a network of more than 43,000 service stations.

Shell is listed on the London Stock Exchange under the symbol RSDB and on the New York Stock Exchange and the Euronext Amsterdam under the symbol RDSA.

Request a Free Case Review

Related Articles