Top 10 Oil and Gas Capital Raises and Investors in the U.S. – April 1st – May 31st, 2026
Several interesting transactions closed in the Oil and Gas sector over the past months. If you would like more info on these deals or would like to discuss the capital raising market for your company, please contact me.
PIPE
- Desert Mountain Energy Corp, a resource company that explores, develops, and produces helium and rare earth gas properties in the U.S. Southwest, received CAD 3 million of development capital.
- Horizon Petroleum Ltd, a company that explores, acquires, and develops oil and gas properties, received CAD 300,100 of development capital.
Merger/Acquisition
- Camden & Southern Railroad, a freight railroad based in Camden, Arkansas, was acquired by OmniTRAX.
- Drilling Innovative Solutions, downhole tool products that serve the oil and gas industry, was acquired by Innovex International.
Later Stage VC
- Barrell Energy, renewable fuel production systems that generate energy, raised Series B venture funding.
- Central McGowan, an industrial distributor and technology integrator company that provides industrial gases, automation, and CO2 services across multiple states, raised $25.8 million of venture funding.
Early Stage VC
- NuCube Energy, compact solid-state fission reactor systems that provide long-term, on-site power generation for energy-intensive operations, raised $16 million of venture funding in the combination of equity and SAFE notes in a deal led by Arizona Nuclear Ventures.
- Northern Smilodon Energy, an oil and gas asset platform that supports current and future energy supply and reliability, raised $1.97 million of venture funding.
Seed Round
- Stone Power, simplified natural gas and advanced nuclear turbines that enable AI-accelerated engineering and American-scale manufacturing, raised venture funding from Deepwater Asset Management.
- Aquanta Vision, an advanced imaging platform that detects methane leaks in industrial environments using thermal and optical technologies, raised pre-seed funding from Odyssey, Marathon Petroleum and Chevron Technology Ventures.
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John Silvestri
Managing Director
Finance, strategy and capital markets executive. Originated structured and executed, as principal, agent and underwriter, over $4 billion of public and private, structured and project finance transactions. Industry expertise includes Energy and Power, Technology/Fintech/Digital, Sponsor, Transportation and Infrastructure, Consumer, Industrials and Agriculture, Banking, and Specialty Finance. Companies ranging from small to large, leveraged, high grade, venture, SPV’s and project finance. Transaction expertise across capital structure includes public and private bonds, equity, structured and direct investments, and unitranche. Leveraged finance includes senior/sub, bridge, acquisition, mezzanine, equity co-investment, and re-capitalizations. Previously, founder of an advisory and a direct investment business, Managing Director and Co-head of Investment Banking at Altamar Capital, and Director and Head of High Yield Capital Markets in New York for Barclays Capital. BS in Management from SUNY Buffalo. MBA from Fordham Gabelli Business School. FINRA Series 7 and 63 licenses.
- Email: jsilvestri@castleplacement.com
- (C) (203) 803-9861
 John SilvestriManaging Director |
Please contact me if you have any questions or would like to discuss your capital raise:
Email: jsilvestri@castleplacement.com
(C) (203) 803-9861
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Sources: Information on this page was derived from a variety of sources including Bloomberg, Company Websites, Crunchbase, PitchBook and other news outlets. Castle Placement® does not warrant or guarantee this information, nor makes any representations as to the accuracy of the information. For more Risks, see CPGO Risks and Disclaimers.
