For deal sourcers, staying current on private company activity is critical to spotting active buyers, tracking market trends, and uncovering emerging investment opportunities ahead of competitors.
In May alone, we added more than 1,400 new private company transactions, bringing the total to over 24,000 searchable deals across sectors, industries, and transaction types in Dakota Marketplace.
Inside Dakota Marketplace, you’ll find the transactions tab that provides structured, filterable data on deal types, values, and dates, while our editorial team curates daily updates through the Dakota transactions newsletter, helping you cut through the noise and focus on what matters most.
To ensure the most comprehensive coverage of private market activity, Dakota monitors over 10,000 websites including company websites, newswires, and numerous third-party news providers to capture and verify transaction data as it happens.
Below are the top 10 energy transactions.
- Transaction Date: 6/12//2026
- Industry: Oil & Gas & Consumable Fuels
- Type: Acquisition / Merger
- Transaction Value: $3.8B
Plains All American Pipeline completed the sale of its Canadian natural gas liquids business to Keyera Corp. for net proceeds of approximately $3.3 billion, completing its transformation into a pure-play crude oil midstream company with assets spanning from Canada to the U.S. Gulf Coast. Proceeds will primarily be used to pay down debt, with Plains targeting leverage toward the middle of its 3.25-3.75x range.
- Transaction Date: 5/14/2026
- Industry: Oil & Gas & Consumable Fuels
- Type: Acquisition / Merger
- Transaction Value: $2.2B
Japan's ENEOS Holdings has agreed to acquire Chevron's downstream fuels and lubricants marketing businesses across six Asia-Pacific markets — Singapore, Malaysia, the Philippines, Australia, Vietnam, and Indonesia — for $2.17 billion, including a 50% stake in the Singapore Refining Company. The deal gives ENEOS stewardship of the well-established Caltex brand and positions the company to capture Southeast Asia's growing petroleum demand as domestic Japanese demand declines.
- Transaction Date: 5/6/2026
- Industry: Oil & Gas & Consumable Fuels
- Type: Acquisition / Merger
- Transaction Value: $1.6B
Western Midstream Partners agreed to acquire Brazos Delaware — one of the largest privately held gathering and processing platforms in the Texas Delaware Basin — for $1.6 billion (split 50/50 cash and equity), adding ~470,000 dedicated acres and 460 MMcf/d of processing capacity to expand its Delaware Basin footprint by nearly 50%. The deal is immediately accretive to distributable cash flow and deepens WES's position as one of the basin's largest natural gas processors.
- Transaction Date: 5/6/2026
- Industry: Oil & Gas & Consumable Fuels
- Type: Acquisition / Merger
- Transaction Value: $1.18B
Diversified Energy and Carlyle have partnered to acquire oil and gas properties in Oklahoma's Anadarko Basin from Camino Natural Resources for $1.175 billion, structured through an innovative asset-backed securitization that keeps most of the debt off Diversified's balance sheet with Carlyle holding ~60% of the producing assets SPV. The bolt-on adds ~300 MMcfepd of production and 100+ drill-ready locations contiguous with Diversified's existing Oklahoma operations, extending its inventory to 30+ years at a one-rig pace.
- Transaction Date: 5/11/2026
- Industry: Energy Equipment & Services
- Type: Growth Equity
- Transaction Value: $1B
VoltaGrid secured a $1 billion strategic equity investment from Blackstone and Halliburton to accelerate its behind-the-meter power generation platform for AI data centers, and simultaneously announced the acquisition of key supplier Propell Energy Technology to vertically integrate its manufacturing and R&D capabilities. The combined platform targets VoltaGrid's ~7.5 GW order book through 2030, with plans to expand Propell's Texas facilities to ~300 MW per month of generation capacity.
6. Vallourec - Strategic Acquisition
- Transaction Date: 5/19/2026
- Industry: Energy Equipment & Services
- Type: Acquisition / Merger
- Transaction Value: $667M
ArcelorMittal raised ~$667 million by selling a 10% stake in French steel tube maker Vallourec at €24 per share — an 8% discount to the prior closing price — while retaining a 17.3% stake in the company. The sale comes after Vallourec's shares surged roughly 75% since ArcelorMittal's original 28.4% stake purchase in March 2024, representing a significant mark-up on its initial investment.
- Transaction Date: 5/18/2026
- Industry: Energy Equipment & Services
- Type: Acquisition / Merger
- Transaction Value: $285M
Australian infrastructure services company GenusPlus Group agreed to acquire MPC Kinetic for up to A$400 million, gaining a leading provider of gas gathering, well maintenance, and renewable energy construction services with A$547 million in projected FY26 revenue and a blue-chip client base including Santos, Arrow, and Origin. The deal diversifies Genus from electrical infrastructure into gas, civil, and water sectors, creating a more complete critical infrastructure services platform ahead of Australia's energy transition.
- Transaction Date: 5/26/2026
- Industry: Oil & Gas & Consumable Fuels
- Type: Acquisition / Merger
- Transaction Value: $259M
Northern Oil and Gas made its first entry into Canada by acquiring a 25% non-operated stake in light oil Duvernay Shale assets in Alberta from Parallax Energy for CA$350 million (~US$259 million), gaining ~75,000 net acres with 20+ years of inventory and breakevens below $50 WTI. The deal is structured with a mix of cash and NOG common stock, and includes a long-term joint development agreement with Parallax covering 500+ gross drilling locations.
- Transaction Date: 5/5/2026
- Industry: Energy Equipment & Services
- Type: Acquisition / Merger
- Transaction Value: $215M
Expro Group has agreed to acquire Enhanced Drilling, a Norwegian managed pressure drilling solutions provider, for approximately 2 billion NOK (~$215 million) in cash, adding a high-technology MPD capability to its portfolio. The deal is immediately cash flow accretive, brings ~$275 million in order backlog, and is expected to generate over $50 million in 2026 Adjusted EBITDA at margins above 30%.
- Transaction Date: 5/4/2026
- Industry: Oil & Gas & Consumable Fuels
- Type: Acquisition / Merger
- Transaction Value: $204M
ADNOC Drilling completed its acquisition of an 80% stake in Oman-based MB Petroleum Services for $204 million, adding 22 drilling and workover rigs and established operations across Oman, Kuwait, Saudi Arabia, and Bahrain to strengthen its position as the Middle East's largest drilling company. The deal closed ahead of schedule and is immediately earnings and cash flow accretive, with full consolidation into ADNOC Drilling's financials beginning in 2027.
Transactions in Dakota Marketplace
At Dakota, we understand how important it is to stay current on deal activity as it happens. That’s why our editorial team continuously monitors the news for real-time updates on platform investments, add-ons, divestitures, and more to deliver daily highlights straight to your inbox through our transactions newsletter.
Inside Dakota Marketplace, the transactions tab provides structured, filterable data with deal dates, types, sectors, and financials, allowing you to build a customized feed that aligns with your focus areas.
Whether you're evaluating a new investment opportunity or tracking trends within a target sector, Dakota Marketplace helps you cut through the noise and focus on what matters most.For more information on these transactions and a deeper dive into their industries and sub-industries, book a demo of Dakota Marketplace.
