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Appalachian Basin Energy Directory · Updated 2026

Oil & Gas Companies in the Appalachian Basin

A maintained directory of the natural gas operators, midstream and pipeline companies, and oilfield-services firms that drive production across the Appalachian Basin, centered on Pittsburgh and the Marcellus and Utica shale region. Searchable by segment.

15 companies3 segmentsLast reviewed: June 2026

The Appalachian Basin oil and gas value chain, in one place

The Appalachian Basin, spanning Pennsylvania, West Virginia and Ohio, is the largest natural gas producing region in the United States, driven by the Marcellus and Utica shales. Pittsburgh is its corporate center, headquarters to leading natural gas operators and the midstream companies that move their gas to market.

This directory organizes those companies by what they actually do, so you can move from a name to a segment in a click. Use the search and segment filters below to narrow the list.

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The full directory as a structured file (company, segment, description, revenue band), plus ModalPoint's read on how vendors win in energy and industrial markets: who buys, how they buy, and where the value chain is shifting. One email, no spam.

  • Built by operators, for operators. ModalPoint is an energy and industrial go-to-market intelligence advisory founded by the team behind EWR Digital, with 26 years in Houston B2B.
  • Proof, not theory. ModalPoint delivers go-to-market work for energy and industrial leaders, grounded in its DIG (Digital Information Governance®) methodology.
  • A living reference. The directory is refreshed as the Appalachian Basin market consolidates.
Company Explorer

Browse 15 companies by segment

Filter by what a company actually does, or search by name and keyword.

Showing 15 of 15 companies

EQT Corporation

Operators (E&P)

Eqt corporation is america's only large-scale, vertically integrated natural gas producer with an evolutionary focus on our future. eqt has operations in pennsylvania, west virginia and ohio and is dedicated to responsibly developing our world-class asset base in the core of the appalachian basin. eqt is making strides toward becoming the best producer by creating long-term value for all stakeholders, including employees, landowners, communities, industry partners and investors with a mission of delivering affordable, reliable and cleaner energy to the world.

Founded 1888 · 1,407 employees · Est. revenue $1B-$10B

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CNX Resources

Operators (E&P)

Cnx resources corporation (nyse: cnx) is the premier natural gas development, midstream, and technology company in appalachia – one of the most energy abundant regions in the world. we believe in an appalachia first approach to our work – prioritizing investments and utilizing home-grown resources that truly make a tangible, impactful, and local difference in our regional communities first, and then far beyond. over the past 150+ years, our 100% local workforce has produced low cost and low emission natural gas to help meet the world’s growing energy demand and catalyze environmental progress. learn more about our company at cnx.com. or, to view stories on our vision, innovations and actions, visit positiveenergyhub.com

Founded 1864 · 404 employees · Est. revenue $1B-$10B

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Antero Resources

Operators (E&P)

Antero resources is an independent exploration and production (e&p) company engaged in the exploitation, development, and acquisition of natural gas, ngls and oil properties located in the appalachia basin. headquartered in denver, colorado, we are focused on creating value through the development of our large portfolio of repeatable, low cost, liquids-rich drilling opportunities in two of the premier north american shale plays. fraudulent offers there have been recent incidents with organizations falsely pretending to recruit on behalf of antero or by people claiming to work for antero. these unauthorized organizations and individuals use the antero name and logo in emails and on forms in an attempt to solicit up-front fees from interested job-seekers. please note that these communications are fraudulent. they do not come from antero and are not associated with antero’s recruitment processes. antero does not send out unsolicited requests for personal information. antero never requires applicants to submit money to antero or outside recruiters in order to pay for travel, immigration, or other expenses. antero emails always end in “@anteroresources.com”. any email using “antero” in a different format is not genuine.

502 employees · Est. revenue $1B-$10B

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Range Resources

Operators (E&P)

Range resources corporation (nyse:rrc) is a leading u.s. independent natural gas and ngl producer with operations focused in stacked-pay projects in the appalachian basin. for more than 40 years, we have remained committed to continuously improving and meeting industry standards to deliver the greatest value to our shareholders, customers, and communities. at range, we have a highly motivated team that has developed many unconventional energy projects that will serve range and its shareholders for many years to come. over the years, we have developed a culture that is unique in many respects.  we view our employees as our most precious resource, and it is their ideas, creativity, passion and winning attitude that drive our results. the company is headquartered in fort worth, texas. for more information visit www.rangeresources.com.

Founded 1976 · 569 employees · Est. revenue $1B-$10B

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Coterra Energy

Operators (E&P)

Coterra energy is a premier, diversified energy company well positioned to deliver superior and sustainable returns. we are built to weather industry cycles with tremendous flexibility between the best oil assets and the best natural gas assets in the country. we embrace innovation, technology and data, as we work to create value for our investors, our team members and the communities where we operate. our approach to esg and sustainable development is centered on a dedicated, consistent effort toward reducing our footprint. at the same time, we are focused on providing a transparent view into our business with credible assessments that keep us on the path to success.

Founded 1888 · 788 employees · Est. revenue $1B-$10B

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Expand Energy

Operators (E&P)

Headquartered in oklahoma city, chesapeake energy corporation is powered by dedicated and innovative employees who are focused on discovering and responsibly developing our leading positions in top u.s. oil and gas plays. with a goal to achieve net zero ghg emissions (scope 1 and scope 2) by 2035, chesapeake is committed to safely answering the call for affordable, reliable, lower carbon energy. to learn more about chesapeake visit www.chk.com.

Founded 1989 · 1,178 employees · Est. revenue $1B-$10B

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Ascent Resources

Operators (E&P)

Energy rising! ascent resources is a leading independent energy company focused on acquiring, developing, and producing natural gas and oil in the prolific appalachian basin. as of the first quarter in 2018 we are the largest producer in the state of ohio. ascent resources provides equal employment opportunities (eeo) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics.

Founded 2013 · 401 employees · Est. revenue $500M-$1B

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Gulfport Energy Corporation

Operators (E&P)

Gulfport is an independent natural gas-weighted exploration and production company focused on the exploration, acquisition and production of natural gas, crude oil and ngl in the united states with primary focus in the appalachia and anadarko basins. our principal properties are located in eastern ohio targeting the utica and marcellus formations and in central oklahoma targeting the scoop woodford and scoop springer formations. our strategy is to develop our assets in a safe, environmentally responsible manner, while generating sustainable cash flow, improving margins and operating efficiencies and returning capital to shareholders. to accomplish these goals, we allocate capital to projects we believe offer the highest rate of return and we deploy leading drilling and completion techniques and technologies in our development efforts.

Founded 1997 · 270 employees · Est. revenue $500M-$1B

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Olympus Energy LLC

Operators (E&P)

Olympus energy llc is a privately-owned oil and natural gas company that specializes in upstream development of natural gas resources. for the past several years, olympus (originally huntley & huntley energy exploration or hhex) has been developing a premier position in the core marcellus, utica, and upper devonian basins of southwestern pennsylvania, assembling over 100,000 largely contiguous acres rich in natural gas resources. olympus is committed to utilizing leading-edge exploration and production techniques on this premier asset to create long-lasting value for both landowners and investors. in 2012, hhex was developed in a partnership with blackstone and managed in association with huntley & huntley, inc., a firm that has over a century of experience in the oil and natural gas industry. in recent years, olympus energy’s management group has expanded to a team of experts who have accumulated many decades of expertise built from working with key industry players. the team has broad experience across unconventional resource plays and supporting industries, and each individual has a proven track record of employing innovative strategies that achieve operational excellence. in 2019, hhex changed its name to olympus energy to better reflect its vision for the future.

Founded 2012 · 38 employees · Est. revenue $50M-$100M

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PennEnergy Resources

Operators (E&P)

Pennenergy resources is a pittsburgh based independent oil and gas company focused on the acquisition and development of unconventional shale resources in the appalachian basin. we are committed to being a best in class shale development company that creates value for our investors, stakeholders, employees and landowners through the safe and environmentally responsible development of unconventional resources. ~192,000 gross acres 100% operated position >400 producing wells ~96% hbp

Founded 2011 · 79 employees · Est. revenue $250M-$500M

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Huntley & Huntley

Operators (E&P)

Huntley & Huntley is a Monroeville-based oil and gas operator (E&P) active in Appalachian Basin.

1 employees · Est. revenue $1M-$10M

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MPLX

Midstream & Pipelines

Marathon petroleum corporation (mpc) is a leading, integrated, downstream energy company headquartered in findlay, ohio. the company operates the nation's largest refining system. mpc's marketing system includes branded locations across the united states, including marathon brand retail outlets. mpc also owns the general partner and majority limited partner interest in mplx lp, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure. more information is available at www.marathonpetroleum.com.

Founded 1887 · 10,118 employees · Est. revenue $10B+

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UGI Corporation

Midstream & Pipelines

Ugi corporation is an international energy distribution and services company that provides superior service in delivering a range of energy products. by operating as a best-in-class service provider, offering a great place to work, serving our communities and delivering value to investors, we aim to positively impact the lives of our shareholders, employees, customers and communities. ugi corporation (nyse: ugi) is a holding company that distributes and markets energy products and services through our subsidiaries and the company’s common stock is a balanced growth and income investment. ugi corporation has paid common dividends for more than 135 consecutive years. why do you want to work here? we offer a competitive salary, full benefit package, tuition reimbursement, 401k with a generous company match & immediate vesting, paid paternity/maternity leave, volunteer time, paid vacation, paid sick time, onsite deli, service awards, and other great perks! plus, the culture is amazing... you can't beat it! visit us online to learn more at www.ugicorp.com.

Founded 1882 · 268 employees · Est. revenue $500M-$1B

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Deep Well Services

Oilfield Services

Established in 2008, deep well services (dws) is an oilfield services company specializing in the most complex and difficult types of well work utilizing hydraulic completion units and workover rigs. we are a leader in efficiency and safety performance and provide valued-added services to the world’s most respected oil and gas companies. we accomplish this through retaining top-tier talent, applying innovative technology, and building partnerships based on trust and reliability. dws has active projects in texas, pennsylvania, ohio, new mexico, new york, north dakota, west virginia, and has recently expanded outside the u.s. into argentina. deep well services recognizes that our success is directly related to the talent, ambition, and leadership embodied within our employees and the communities we serve. dws is the only hydraulic completion and intervention services company in north america to have earned the api q2 certification for quality management. in fact, our quality management system is certified by both api q2 and iso 9001:2015. our designation as api q2/iso9001 certified exemplifies our commitment to continuous improvement, mitigating risk, and providing our customers a competitive advantage in the safest and most environmentally conscious way possible. the technology we have deployed has become a game changer for our customers. multi-faceted equipment enables us to perform more jobs without additional equipment to mobilize. we have invested heavily in technology and training. from the well site to the classroom, dws commitment to technological advancements is second to none. dws has invested heavily in a competency-based training program that enables each employee to be promoted within the company based on a competency check list. the competency program allows dws employees to take their own initiative in creating and driving their career paths via the competency checklist. giving our employees the power to drive their own success.

Founded 2008 · 297 employees · Est. revenue $500M-$1B

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Diversified Energy Company

Operators (E&P)

Diversified is a leading publicly traded energy company focused on natural gas and liquids production, transport, marketing, and well retirement. through our differentiated strategy, we acquire existing, long-life assets and invest in them to improve environmental and operational performance until retiring those assets in a safe and environmentally secure manner. recognized by ratings agencies and organizations for our sustainability leadership, this solutions-oriented, stewardship approach makes diversified the right company at the right time to responsibly produce energy, deliver reliable free cash flow, and generate shareholder value.

Founded 2001 · 590 employees · Est. revenue $1B-$10B

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Curated & Reviewed

Matt Bertram

President, ModalPoint | CEO, EWR Digital (Houston) | Fractional CMO, OGGN

This directory is curated and maintained by ModalPoint, a go-to-market intelligence advisory for energy and industrial companies. Matt has spent 26+ years in B2B and energy marketing, helping companies go to market in the energy sector.

Last reviewed: June 2026 | Sources: company summaries and third-party firmographic data, ModalPoint research. Listing is informational and not an endorsement. Spotted an error or a company we should add? Let us know.

ModalPoint research, built from our directories:

FAQ

Questions about Appalachian Basin oil & gas companies

How many oil and gas companies are in the Appalachian Basin?+
Appalachian Basin is home to a broad mix of operators, oilfield-services firms, midstream and equipment companies. This directory tracks a curated set of the most active companies, organized by industry segment.
Who are the largest oil and gas companies in the Appalachian Basin?+
The most prominent include EQT, CNX Resources, Range Resources, Antero Resources and Coterra Energy. This directory lists active companies with estimated revenue bands where available.
What is the role of Pittsburgh and the Marcellus and Utica shale region in the oil and gas industry?+
Pittsburgh is the corporate headquarters hub of the Appalachian natural gas industry (EQT, CNX), surrounded by independent operators across the Marcellus and Utica shales of Pennsylvania, West Virginia and Ohio, plus the midstream companies that gather and transport the gas.
Who maintains this Appalachian Basin oil and gas directory?+
It is curated by ModalPoint, a go-to-market intelligence advisory for the energy and industrial sectors, and reviewed by Matt Bertram, President of ModalPoint and CEO of EWR Digital.
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