(Reuters) -ConocoPhillips on Wednesday agreed to shop for Marathon Oil in a $22.5 billion all-stock deal, the most recent in a sequence of mega-deals within the oil and gasoline business as firms glance to reinforce reserves.The U.S. oil and gasoline business has been driving a consolidation wave over the past two years. Remaining yr was once probably the most lively, the place M&A offers price $250 billion had been struck through firms. The momentum has carried over into this yr because the inventory marketplace continues to increase and as U.S. oil manufacturing scales new information.The deal follows the introduced acquire through U.S. majors Exxon Mobil of Pioneer Herbal Sources in October, and Chevron’s proposed $53 billion merger with Hess that was once licensed through the latter’s shareholders on Tuesday.Marathon Oil has operations within the Bakken basin in North Dakota, Permian basin in North Delaware and South Texas’ Eagle Ford basin – areas which are high goals for manufacturers having a look to extend their stock.Marathon Oil stocks had been up 7% at $28.39, whilst Conoco stocks had been down about 3% in premarket buying and selling.”This acquisition of Marathon Oil additional deepens our portfolio and suits inside of our monetary framework, including top quality, low value of provide stock adjoining to our main U.S. unconventional place,” ConocoPhillips CEO Ryan Lance mentioned.The consolidation task is attracting higher antitrust scrutiny, with the FTC reviewing multi-billion buck offers, together with the ones involving Chevron, Diamondback Power, Occidental Petroleum and Chesapeake Power.Marathon shareholders will obtain 0.2550 stocks of ConocoPhillips inventory for each and every proportion they grasp. That interprets to an be offering of $30.33 consistent with Marathon proportion, representing a top rate of just about 15% as of the inventory’s Tuesday shut, in step with Reuters calculations.The transaction, which incorporates $5.4 billion of Marathon’s debt, is anticipated to near within the fourth quarter of 2024.ConocoPhillips mentioned it was once anticipating to reach the overall $500 million of value and capital synergy run charge throughout the first complete yr following the final of the transaction.Complex deal talks between the 2 firms had been first reported through the Monetary Instances overdue on Tuesday.(Reporting through Seher Dareen and Gnaneshwar Rajan in Bengaluru; Enhancing through Mrigank Dhaniwala and Anil D’Silva)