The Oil and Gas industry in Maryland comprises a diverse range of operations, from exploration and production to transportation and consulting services. Companies like Rosemore concentrate on oil and gas exploration, coupled with transportation. Others like Geo-Technology Associates offer a suite of specialized environmental and geotechnical consulting services catering to multiple sectors. With emerging trends, the industry is increasingly focusing on cleaner and more efficient practices. This dynamic industry is making strides in its innovation and environmental stewardship, promising a promising future.


Top 20 oil and gas companies in Maryland

1. Rosemore

Rosemore, Inc. is a privately-held corporation based in Baltimore, Maryland with a primary focus on oil and gas exploration, production, and transportation via its subsidiaries Tema Oil and Gas Company and Gateway Gathering and Marketing Company. The company also manages a diversified portfolio of investments.


2. Geo-Technology Associates, Inc. (GTA)

  • Website: gtaeng.com
  • Headquarters: Abingdon, Maryland, United States
  • Founded: 1985
  • Headcount: 501-1000
  • LinkedIn

Geo-Technology Associates, Inc. (GTA) is a geotechnical and environmental consulting company specializing in construction, drilling, environmental consulting, and environmental remediation services. With expertise in natural resources, groundwater and wastewater, and oil and gas field support, GTA serves various markets including commercial, energy, government and institutional, healthcare, and industrial sectors.


3. Oilfield Wiki

  • Website: oilfieldwiki.com
  • Headquarters: Stevensville, Maryland, United States
  • Headcount: 1-10

OilfieldWiki is a collaborative effort to build and share the world's largest, highest quality Oilfield Encyclopedia. Like Wikipedia, OilfieldWiki is a wiki, in that anyone can write or edit a page on the site. Because OilfieldWiki is editable by anyone, our content changes every day. Each edit can be seen on our list of Recent Changes, which gets reviewed constantly by volunteer editors. Most of the edits made on any given day are helpful, and any poor edits are usually quickly reverted. In this way, articles on OilfieldWiki improve over time, as more and more people contribute their unique knowledge and skills. Not only are OilfieldWiki's articles written and maintained by oil/gas industry professionals, but they're also shared with as many people around the world as possible. Our Creative Commons license allows OilfieldWiki's articles to be used freely by any organization or person. Allowing free republication of our content helps achieve OilfieldWiki's mission by offering our knowledge pool to help even more people for free. At the core of OilfieldWiki is the volunteer community of writers and editors, who contribute for a wide variety of reasons and in a wide variety of ways. There's a small team of employees, whose job it is to make sure the site keeps reaching readers and innovating on the technology, but volunteer contributors like you are the lifeblood of this project. If you'd like to help out, getting started is easy. We need authors to start new articles, editors to fix typos, add photos, pick videos, correct inaccuracies, and patrol recent changes. Read this list of the dozens ways you can contribute. If you have any questions, ask the Help Team.


4. Geothermal Technologies

  • Website: geothermal.tech
  • Headquarters: Baltimore, Maryland, United States
  • Founded: 2018
  • Headcount: 11-50
  • Latest funding type: Grant
  • LinkedIn

Geothermal Technologies is a company developing state-of-the-art drilling technologies, seismic imaging, downhole fiber optics, electromagnetic geophysical imaging, and advanced ORC power generation technologies to build novel geothermal power plants designed to operate economically and sustainably, with clean, renewable, low cost, baseload electricity production throughout the world.


5. Avanti Exploration Louisiana

Avanti Exploration is a Denver, Colorado based oil and gas exploration and production company. Avanti was founded by John McIntyre and Bud Knell, both former senior executives with Forest Oil Corporation of Denver. Avanti focuses on the revitalization of old fields in Louisiana and has recently established Avanti SA, an affiliate company supported by private equity partners, to develop oil exploration and development opportunities onshore Brazil and Colombia.


6. Lmma

  • Website: lmma.com
  • Headquarters: Baltimore, Maryland, United States
  • Headcount: 1-10

My goal of forming LMMA was to be able to assist property owners with managing their properties, whether they were dealing with a gas company or pipeline company throughout the Appalachian region. It is hard to believe that 5 years have passed but looking back and realizing I have worked with hundreds and talked to thousands of mineral and surface owners and helped guide them through this process that is Natural Gas, I have the feeling of satisfaction of a job well done. I am pleased that you have decided to visit our website. In order that you may get to know me a little better I have written a brief summary of my work experience. Prior to starting and operating LMMA, I worked for five (5) years at a land management company in the Charleston, West Virginia area. My responsibilities included but were not limited to acquisition, leasing and management of oil and gas properties as well as developing new business opportunities. I worked for the West Virginia Department of Health and Human Resources (WV DHHR) from 2002 to 2005. In this position I managed the water and wastewater Training and Certification program. This program is responsible for the testing and certification of all water and wastewater operators in the State of West Virginia. From 2001 through 2002 I owned a small business called Compliance Solutions, LLC. I consulted with the Oil and Gas Industry specializing in leasing properties, seismic permitting and courthouse research as well as assisting the oil and gas industry with understanding and complying with oil, gas and environmental law. From 1999 to 2001 I worked for Weavertown Environmental Group. In this position I was responsible for marketing and account management in a multi-state region providing environmental remediation services, site assessment services, occupational exposure risk analysis and employee education opportunities for chemical, oil & gas, industrial and manufacturing entities. From 1986 through 1999 I worked for the West Virginia Division of Environmental Protection ...


7. The Curry Team

  • Website: thecurryteam.com
  • Headquarters: Pikesville, Maryland, United States
  • Headcount: 1-10

The Curry Team is a company that operates in the Real Estate industry. It employs 6-10 people and has $1M-$5M of revenue. The company is headquartered in Pikesville, Maryland.


8. Muthig Environmental

  • Website: muthig-env.com
  • Headquarters: Columbia, Maryland, United States
  • Founded: 2001
  • Headcount: 11-50

Muthig Environmental provides assessment and remediation of petroleum hydrocarbon contamination in soil and groundwater, their services include lectures, continuing education, insurance evaluations related to environmental matters, and forensic environmental investigations, regulatory liaison services, cost control for environmental projects.


9. Bland Oil

  • Website: blandoil.com
  • Headquarters: Bowie, Maryland, United States
  • Headcount: 1-10

Bland Oil Solutions, seek to provide oil and equipment supply solutions that is consistent with universal standards to our esteemed customers in the Oil and Gas industry. ur focus, through strategic alliance with leading global manufacturers, is to meet and exceed our supply obligations to branded and contracted customers.


10. Mathpro INC

MathProInc., founded in 1990, is a Washington, DC area consulting firm specializing in technical and economic analysis of petroleum refining and related industries. MathPro is a leader in applying optimization modeling techniques to the analysis of refining techno-economics. MathPro is dedicated to producing sound, independent, and usable analysis of refining operations and economics and of policy issues bearing on refining. Serving public and private sector clients, MathPro is recognized as a source of objective, even-handed analysis and clear, understandable reports.


11. Highland Light Management

  • Website: hlmenergy.com
  • Headquarters: Montgomery Village, Maryland, United States
  • Founded: 2013
  • Headcount: 1-10
  • Latest funding type: Grant

Highland Light Management develops a dry fracture technique in oil and gas extraction to reduce water use and increase life cycle yield. The company is a Maryland corporation that developed and patented the Dry Fracture Shale System technology for hydrocarbon extraction from shale and other hydrocarbon sources.


12. East Coast Underground

East Coast Underground LLC specializes in performing Directional Drilling in areas with a high concentration of rock. They have a team of dedicated and skilled operators, along with a fleet of directional drills ranging in size from 10,000 to over 240,000 pounds. They also offer Auger Boring services up to 48 inches in diameter. Their mission is to set the highest standards in the directional drilling industry.


13. Spigler Petroleum Equipment

Spigler Petroleum is a company that provides energy solutions for various industries. They offer a wide range of petroleum products and services to meet the needs of their customers.


14. Aerial Production Services

  • Website: flyaps.io
  • Headquarters: Crofton, Maryland, United States
  • Founded: 2014
  • Headcount: 11-50
  • LinkedIn

Aerial Production Services provides high quality aerial inspections and photography services. Their unmanned technology assists in creating a safer industry by documenting assets and identifying anomalies easily. With a focus on safety and precision, they serve the telecommunications, natural gas & oil and construction industries.


15. Porter and Company

Thebigsecretonwallstreet.com is a financial advisory website that offers expert investment recommendations and insights through free and paid subscriptions.


16. Steve Prentice Piano Service

The website appears to belong to a Chinese university called Northeastern University at Shenyang, also known as NEU. It offers a variety of undergraduate and postgraduate programs, including in computer science, software engineering, intelligent electronics, digital media and design, information and business management, and health and medical technology. Additionally, NEU has a student entrepreneurship center and supports continuing education programs.


17. LTN Global

  • Website: ltnglobal.com
  • Headquarters: Columbia, Maryland, United States
  • Founded: 2006
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

LTN Global is a global broadcast video solutions company that offers transformative content experiences. They provide live video management, monitoring and control, and automated versioning to reach cross-platform audiences. Their solutions include linear video integration, addressable advertising, and IP multicast transport.


18. NOAA Research

The Office of Oceanic and Atmospheric Research (OAR) - or NOAA Research - provides the research foundation for understanding the complex systems that support our planet. Working in partnership with other organizational units of the National Oceanic and Atmospheric Administration, a bureau of the Department of Commerce, NOAA Research enables better forecasts, earlier warnings for natural disasters, and a greater understanding of the Earth. Our role is to provide unbiased science to better manage the environment, nationally, and globally.


19. The Robert B. Balter Company

  • Website: balterco.com
  • Headquarters: Owings Mills, Maryland, United States
  • Founded: 1963
  • Headcount: 51-200
  • LinkedIn

Balter is a Woman-Owned Business (WBE) and Small Business that offers geotechnical engineering, materials laboratory testing, and special inspections for construction projects. With over two generations of experience, Balter has developed a solid reputation in the Mid-Atlantic region and has worked on more than 17,500 projects in the United States and Internationally.


20. Dewhurst Group LLC.

DEWHURST GROUP LLC is an American geoscientific and engineering company that specializes in global geothermal exploration, development, and financing.


Want to find more oil and gas companies?


If you want to find more companies that offer services from oil and gas production to specialized consultancies you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
  • Contact data: Who are the owners and CEO's? What are their emails and phone numbers?
  • Financials: How do these companies perform financially? What are their revenues and profit margins?

...and a lot more!