Top Oil & Gas Drilling Private Equity Funds with Recent Private M&A Activity

Active Firms

1,396

TTM Deal Inquiries

$5M-$21M

Core Revenue Range

$1M-$4M

Core EBITDA Range

Top States by Activity

Florida 16%

California 10%

Texas 9%

New York 7%

New Jersey 4%

Key Attributes

Focus: Control Investments | Capital Source: Committed Capital | Operating Approach: Scale & Exit

Argonaut Private Equity

2 Closed Deals via Axial

22 Total Closed Deals Actively Sourcing Deals

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Founded in 2002, Argonaut Private Equity is a Tulsa, Oklahoma based private equity firm with over $1.5 billion of capital deployed by the firm’s principals. The firm is currently investing out of Argonaut Private Equity Fund IV, a $400 million fund that deploys Argonaut’s strategy of making control-oriented buyout investments in companies in the industrial, manufacturing and energy services and products sectors. Argonaut looks to partner with management teams to improve operations, implement best practices and generate shareholder value. Argonaut has an over 15-year…

Recent Transactions

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May 2023 Acquired Confidential Company
Feb 2020 Acquired Confidential Company
Nov 2019 Acquired MultiTech Industries Inc.
Oct 2018 Acquired Energy Services

Envest Capital Partners

1 Closed Deal via Axial

22 Total Closed Deals Actively Sourcing Deals

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Envest Capital Partners is an investment company holding long term private equity positions in established basic businesses. We invest in a relatively broad range of basic industries, with a focus on manufacturing, industrial & consumer services, and franchising. Envest seeks to provide private direct equity financing to companies with sales of $5 to $50 million, exceptional growth prospects and strong, stable cash flow. Founded in 2000, Envest is a private equity firm based in Virginia Beach, VA. We are dedicated to partnering with privately held and founder-owned businesses. The Envest…

Recent Transactions

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Aug 2023 Acquired Earl Industries Inc.
Aug 2023 Acquired Digital Services LLC
Aug 2023 Acquired Commonwealth Epoxy Coatings LLC
Oct 2022 Acquired CBT Logistics Group

Ninth Street Capital Partners

1 Closed Deal via Axial

9 Total Closed Deals

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Ninth Street Capital Partners is a private investment partnership that specializes in acquiring, developing and managing established businesses. With a focus on executing deals with the highest degree of integrity, we make long-term controlling investments in growth-oriented, privately held businesses with revenues ranging from $5 to $50 million. Our flexible approach allows us to tailor our investments to help entrepreneurs and business owners achieve their personal and financial goals.

Recent Transactions

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Sep 2019 Acquired Undislosed
Jun 2015 Invested in Premium Inspection & Testing
Mar 2014 Invested in Kitchen Cabinet Distributors
May 2013 Acquired SCADA Source, LLC

Gemini Investors

136 Total Closed Deals Actively Sourcing Deals

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Founded in 1993, Gemini Investors is a Massachusetts-based private equity firm that provides capital and strategic resources to lower middle market companies. Since its inception, we have invested approximately $1 Billion in more than 185 companies throughout the U.S., typically investing $3 – $8 million per transaction in either control or minority positions. Gemini offers a flexible investment approach. We provide a wide range of financing structures, which include subordinated debt with warrants, preferred stock, and common equity. We have extensive experience leading transactions, as…

Recent Transactions

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Sep 2025 Acquired Party Reflections
May 2025 Acquired Honey Smoked Fish
May 2025 Acquired Gold Coast Baking Company
Feb 2025 Acquired Spectro-UV

Harren Equity Partners

24 Total Closed Deals Actively Sourcing Deals

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Harren Equity Partners is a Charlottesville, Virginia and Fort Lauderdale, Florida based private investment firmand leading provider of equity for middle market acquisitions, recapitalizations and growth capital financings. Harren professionals work with each portfolio company to develop and/or implement a strategic business plan, and we support management by providing the operational, financial and human resources necessary to manage the increasingly complicated decisions associated with growing a business. Harren's approach to private investment is significantly differentiated from the…

Recent Transactions

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Apr 2022 Acquired Core States Group
Jan 2022 Acquired A & A Transfer
Aug 2021 Invested in Health Connect America
Jun 2021 Acquired Alliance Ground International

Kainos Capital

22 Total Closed Deals Actively Sourcing Deals

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Kainos Capital, a middle market private equity firm focused on the food and consumer sector, was recently formed by Andrew Rosen, Robert Sperry and Sarah Ashmore Bradley. The Kainos Partners have invested and collaborated together in the food and consumer space over the past 20 years and their deep industry knowledge is complimented by an experienced team of investment professionals.The Kainos Team has extensive investment and operating experience in the industry, having invested more than $2 billion of equity in more than 52 transactions in the food and consumer sector with a total…

Recent Transactions

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Aug 2023 Acquired Good2Grow
Feb 2023 Invested in CellCore
Jan 2023 Acquired Evriholder
Aug 2021 Acquired Muenster Milling Company

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Sagemoore Capital

5 Total Closed Deals Actively Sourcing Deals

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Sagemoore is a private equity firm focused on making investments in the lower middle-market. We utilize an evergreen fund structure with committed capital from family office investors resulting in a patient capital base.This structure offers a flexible investment horizon designed to maximize stakeholder alignment by focusing on true long-term value creation. Sagemoore’s investment principals each have more than 15 years of professional investing and healthcare operating experience.We seek to cultivate deep partnerships with entrepreneurs and experienced operating teams for the benefit of…

Recent Transactions

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Aug 2024 Advised Sagemoore Capital on an investment from Confidential Company
Jan 2017 Acquired Carie Health
Mar 2014 Invested in ServRX
Apr 2011 Acquired Restore Health

9FB Capital

Actively Sourcing Deals

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9FB Capital is a lower mid market Private Equity firm which is operator-investor focused on buying, integrating, and compounding value in fragmented industries. At 9FB Capital, we pair disciplined acquisitions with a repeatable integration playbook: cross-selling across shared customer bases, driving organic growth with modern GTM and tech, unlocking financial efficiencies, and standardizing operations with EOS principles. We move quickly, treat founders like partners, and build platforms designed for optionality—recap or strategic exit on a predictable timeline.How 9FB Wins…

Recent Transactions

This member has no reported closed transactions.

Granite Street Partners

Actively Sourcing Deals

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Granite Street Partners is a private equity firm that invests in lower-middle-market industrial and manufacturing businesses with $1-5M EBITDA. Our approach is hands-on. We are operators ourselves, and we partner directly with owners and management teams to identify underlying value and build exceptional enterprise value and returns.

Recent Transactions

This member has no reported closed transactions.

Serent Capital

19 Total Closed Deals

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Founded in 2008, Serent Capital is a leading lower-middle market private equity firm focused on investing in high growth service and technology businesses. Our operating model is distinct in its focus on business building. We strive to be an involved, value-added investor, capable of providing significant operational and strategic support to our portfolio company CEOs on the most critical issues that they face as their companies scale.Serent Capital’s ability to assist its companies is based on its principals’ experience as CEOs, strategic advisers, and Board Members, and a deep network…

Recent Transactions

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Apr 2015 Acquired Mercury Network
Mar 2015 Invested in Commissions, Inc.
Mar 2015 Invested in Compeat Restaurant Management Systems
Feb 2015 Acquired ICon Professional Services

HBC Investments

10 Total Closed Deals

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HBC Investments is a family office-affiliated private equity investor. At HBC Investments, we act as a non-traditional private equity firm that marries the best of both worlds: investment experience and patient flexible capital. For investors and our portfolio companies, our business model eliminates the constraints and limitations associated with traditional, short-term oriented private equity funds. Primarily leveraging our own capital and family office funds, we identify and invest in compelling private companies and partner with management teams to grow the businesses and optimize the…

Recent Transactions

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Sep 2015 Invested in Retirement Advisors of America
May 2015 Invested in Hail Merry
Aug 2014 Invested in San Pedro Development (SPD)
Mar 2014 Acquired Water Midstream Partners, LLC

Starboard Capital Partners

10 Total Closed Deals

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Starboard Capital Partners is a private equity firm that sponsors and invests in lower middle market companies, with values ranging from $10 million to $250 million. We participate with our network of high net worth, family office, and institutional fund co-investors to partner with management teams and entrepreneurs who are looking to accelerate the growth of their companies. Starboard is actively involved in leveraged buyouts, growth equity investments, and recapitalizations. Most importantly, we actively listen to business owners and look to match our knowledge and capital resources to…

Recent Transactions

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Jun 2015 Invested in QDiscovery
Mar 2015 Invested in Brite-Line Technologies
Oct 2011 Acquired PureRED (previously GA|PRC Group)
Jul 2011 Invested in JPC Holdings, LLC (Jersey Precast)

The Tokarz Group Advisers

9 Total Closed Deals

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The Tokarz Group Advisers LLC (TTGA) is the investment adviser to MVC Capital, Inc, which trades on the NYSE under "MVC" and to the MVC PE Fund LP, a traditional GP/LP private equity fund. TTGA is a registered investment adviser. We are based in Purchase, NY, with offices in Chicago, IL, and Boston, MA. Our expertise is in making long-term debt and equity investments in lower middle-market companies to fund growth, acquisitions and recapitalizations. Our strong operational experience allows us to immerse ourselves in our portfolio companies, typically working closely with existing management…

Recent Transactions

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Apr 2010 Acquired Custom Alloy
Apr 2010 Acquired Vitality Foodservice
Apr 2010 Acquired Marine Exhibition Corporation
Sep 2007 Acquired MVC Auto

Bow River Capital

9 Total Closed Deals

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Bow River Capital Partners is a lower middle market private equity investment firm based in Denver, Colorado. Founded in 2003, Bow River has raised three funds with total capital commitments in excess of $200 million. Investment Criteria: --Revenue of $10-50 million --EBITDA of $2-10 million --Leveraged buyouts/recapitalizations, typically in partnership with management --Control only, no minority investments --Industry focus: o Business Services o Industrial Services o Environmental Services o Healthcare Services o Engineering Companies o Niche Manufacturing o Water and Water Resources…

Recent Transactions

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May 2015 Acquired Strong-Bridge Consulting, LLC
Dec 2013 Acquired Lifecare Innovations, Inc.
May 2013 Acquired Ely & Associates
Feb 2013 Acquired Kobelt Manufacturing Ltd.

Zabel Companies, LLC

8 Total Closed Deals

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Zabel Companies ("Zabel") is a private investment firm dedicated to partnering with management teams to invest in and build private companies over the long-term (5 to 15 years). Whether through a buyout, recapitalization or injection of growth capital, Zabel's strategy is to work closely with management to steadily grow businesses and to build value for all parties involved.Zabel does not limit its activity by industry or geography, but rather focuses on the fit with management and the opportunities to grow a business.The Zabel team has a hands-on and collaborative style built through years…

Recent Transactions

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Apr 2022 Acquired Frame It Easy
Dec 2020 Acquired New Market Waste
Jul 2020 Acquired Medical Packaging Inc.
Apr 2019 Acquired Bedford Precision Parts

Tuckerman Capital

7 Total Closed Deals

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Tuckerman Capital is a private investment firm that works with Deal Partners (experienced executives and Independent Sponsors) to invest in and build exceptional small companies that deliver innovative solutions for the long-term with enterprise values typically ranging from $10 million to $75 million.

Recent Transactions

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Oct 2010 Acquired Promo Seeds, Ltd.
Oct 2010 Acquired Shield Pack, LLC
Oct 2010 Acquired Solidscape, Inc.
Oct 2010 Acquired Wohler Technologies, Inc.

Red Arts Capital

6 Total Closed Deals

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We invest in companies across the supply chain, ranging from logistics to value-added manufacturing to business services. Our experienced investment team and our advisory group of industry leaders and operators have built a strategic approach that prioritizes sophisticated analysis, deep sector knowledge, and thoughtful collaboration with our portfolio management teams, our investors, and the wider investment community.

Recent Transactions

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Sep 2025 Acquired Belpak
Mar 2025 Acquired Freshway
Dec 2024 Acquired KKSP
Oct 2022 Acquired Flex Logistics

KV Private Equity Inc.

4 Total Closed Deals

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KV Private Equity Inc. is a private equity fund focused on lower middle-market businesses. We are industry agnostic buy have a focus on direct to consumer, retail, distribution, industrial and manufacturing sectors primarily in Canada and the US. Whether you’re looking for a partner, to exit your business, or to preserve your legacy, we’re flexible when it comes to your goals and strategies. Our versatility gives you an optimal structure that easily adapts to your objectives.We are transparent in everything we do. Our process is designed to be clear, simple, and efficient, effectively…

Recent Transactions

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Nov 2018 Acquired Campion Marine
Jul 2018 Acquired Escape Trailers
Sep 2017 Acquired Off Grid Trailers
Apr 2017 Acquired Northern Lite

Acasta Capital

3 Total Closed Deals

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Acasta Capital is a boutique merchant bank and advisory firm formed to bring together individuals with unique experiences and track records to create greater value for clients and partners based on inventive and do-able ideas. Being free of the conflicts and limitations too common in the advisory sector, our business model is founded on the principle of aligned interests with clients and partners. We provide advice on transformational change, mergers and acquisitions, financial restructurings, capital structure, investor activism and strategy.

Recent Transactions

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Jan 2017 Acquired Stellwagen Group
Jan 2017 Acquired Jempak
Jan 2017 Acquired Apollo

Rockline Equity

1 Total Closed Deal

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We founded Rockline Equity specifically to build and invest in profitable companies. Our team has completed more than a dozen transactions throughout the Southwest. We pride ourselves in the quality of our joint-venture partnerships with management teams and owners to deliver results for our companies and investors.

Recent Transactions

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Oct 2019 Acquired Cole Mechanical, LLC

Firms in the Oil & Gas Drilling Private Equity Funds directory are ordered based on recent deal activity on Axial. The default order reflects observed market signals rather than a subjective ranking of firm quality.

Each profile provides information about the firm’s areas of focus, transaction criteria, and relevant activity on Axial’s M&A platform. Together, these details provide a clearer view of where a firm is active and the types of companies and opportunities most relevant for it.

Based on activity on Axial’s M&A platform, the core revenue range for Oil & Gas Drilling Private Equity Funds is $5M-$21M, with a core EBITDA range of $1M-$4M. Company size can be an important indicator of fit, as firms often concentrate their experience, resources, and transaction activity within particular segments of the market.

Relevant Energy & Utilities experience can be an important consideration when evaluating a firm. Familiarity with the sector can provide a stronger understanding of its business models, market dynamics, valuation considerations, and transaction environment. The 28 firms included in this directory provide a starting point for identifying firms with relevant experience and activity in Energy & Utilities.

Not necessarily. Many firms are active across multiple industries, so inclusion in the Oil & Gas Drilling Private Equity Funds directory reflects relevant experience or activity in Energy & Utilities, rather than an exclusive sector focus. Individual profiles provide additional context on each firm’s areas of focus and activity within the sector.

When comparing Private Equity Funds with experience in Energy & Utilities, consider factors such as size range, geographic reach, and recent transaction activity. These characteristics vary across the 28 firms included in the directory and can help identify firms that align with your needs.

Axial can help you identify and connect with firms based on your objectives and what you are looking to accomplish. The process varies depending on your role and transaction needs. If you are interested in connecting with firms in the Oil & Gas Drilling Private Equity Funds directory, you can request information here.

Top Oil & Gas Drilling Private Equity Funds

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