U.S. upstream M&A hits $38 billion as oil prices fuel consolidation wave

U.S. upstream merger and acquisition activity reached $38 billion in the first quarter of 2026, marking a two-year high for the sector. The surge in dealmaking occurred despite a sharp slowdown in March, which analysts attribute to market volatility linked to conflict in the Middle East. According to Enverus Intelligence Research, the rebound signals the start of a new consolidation wave, driven by a "higher-for-longer" oil price environment that is encouraging both corporate mega-mergers and private asset sales.

The quarter’s most significant transaction was Devon Energy’s $25 billion all-stock acquisition of Coterra Energy. Under the terms of the deal, Coterra shareholders received 0.70 shares of Devon Energy stock for each Coterra share held. The merger creates a combined entity with an enterprise value of approximately $58 billion, establishing the largest shale operator in the Delaware Basin. The new company is projected to produce over 1.6 million barrels of oil equivalent per day, with management anticipating $1 billion in annual pre-tax cost savings.

In a separate major transaction, Mitsubishi Corporation acquired Aethon Energy Management’s U.S. shale gas and pipeline assets for $7.5 billion, marking the largest deal in the Japanese conglomerate’s history. The acquisition includes $5.2 billion for asset interests and the assumption of $2.33 billion in net interest-bearing debt. The assets comprise roughly 380,000 acres in the Haynesville Shale, producing 2.1 billion cubic feet per day of natural gas, with production expected to reach 2.6 billion cubic feet per day by 2027 or 2028.

The Mitsubishi deal also includes more than 1,700 miles of dedicated pipeline infrastructure linking production to Gulf Coast markets. The assets are located adjacent to the Cameron LNG facility, where Mitsubishi holds existing liquefaction tolling capacity, creating an integrated business model. The acquisition aligns with the Japanese government’s classification of natural gas as an essential transition fuel and its push for private corporations to secure long-term upstream equity overseas.

Enverus Intelligence Research forecasts Brent crude to average $95 per barrel for the remainder of 2026, with prices expected to rise to $100 in 2027. The firm cites geopolitical risks, low OECD crude inventories, and limited OPEC spare capacity as key support factors. Meanwhile, Morgan Stanley strategists have warned that oil prices could spike to $150 per barrel if the Strait of Hormuz remains closed into June, noting that U.S. crude inventories are under greater pressure than China’s reduced import levels can sustain.